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-rw-r--r--shell/ash.c2789
1 files changed, 2748 insertions, 41 deletions
diff --git a/shell/ash.c b/shell/ash.c
index 9173b8608..3919118f0 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -15,6 +15,20 @@
15 * 15 *
16 * Licensed under GPLv2 or later, see file LICENSE in this source tree. 16 * Licensed under GPLv2 or later, see file LICENSE in this source tree.
17 */ 17 */
18
19/*
20 * MinGW notes
21 *
22 * - Environment variables from Windows will all be turned to uppercase.
23 * - PATH accepts both ; and : as separator, but can't be mixed
24 * - command without ".exe" extension is still understood as executable
25 * - shell scripts on the path are detected by the presence of '#!'
26 * - both / and \ are supported in PATH. Usually you must use /
27 * - job control doesn't work, though the jobs builtin is available
28 * - trap doesn't work for signals, only EXIT
29 * - /dev/null is supported for redirection
30 */
31
18//config:config SHELL_ASH 32//config:config SHELL_ASH
19//config: bool #hidden option 33//config: bool #hidden option
20//config: depends on !NOMMU 34//config: depends on !NOMMU
@@ -170,11 +184,36 @@
170//config: you to run the specified command or builtin, 184//config: you to run the specified command or builtin,
171//config: even when there is a function with the same name. 185//config: even when there is a function with the same name.
172//config: 186//config:
187//config:
188//config:config ASH_NOCONSOLE
189//config: bool "'noconsole' option"
190//config: default y
191//config: depends on (ASH || SH_IS_ASH || BASH_IS_ASH) && PLATFORM_MINGW32
192//config: help
193//config: Enable support for the 'noconsole' option, which attempts to
194//config: conceal the console normally associated with a command line
195//config: application. This may be useful when running a shell script
196//config: from a GUI application. Also the 'noiconify' option, which
197//config: controls whether the console is iconified or hidden.
198//config:
199//config:config ASH_GLOB_OPTIONS
200//config: bool "Globbing options"
201//config: default y
202//config: depends on (ASH || SH_IS_ASH || BASH_IS_ASH) && PLATFORM_MINGW32
203//config: help
204//config: Enable support for options to control globbing:
205//config: - 'nocaseglob' allows case-insensitive filename globbing
206//config: - 'nohiddenglob' allows hidden files to be omitted from globbing
207//config: - 'nohidsysglob' allows hidden system files to be omitted
208//config:
173//config:endif # ash options 209//config:endif # ash options
174 210
175//applet:IF_ASH(APPLET(ash, BB_DIR_BIN, BB_SUID_DROP)) 211//applet:IF_ASH(APPLET(ash, BB_DIR_BIN, BB_SUID_DROP))
176// APPLET_ODDNAME:name main location suid_type help 212// APPLET_ODDNAME:name main location suid_type help
177//applet:IF_SH_IS_ASH( APPLET_ODDNAME(sh, ash, BB_DIR_BIN, BB_SUID_DROP, ash)) 213//applet:IF_SH_IS_ASH( APPLET_ODDNAME(sh, ash, BB_DIR_BIN, BB_SUID_DROP, ash))
214//applet:IF_PLATFORM_MINGW32(
215//applet:IF_SH_IS_ASH( APPLET_ODDNAME(lash, ash, BB_DIR_BIN, BB_SUID_DROP, ash))
216//applet:)
178//applet:IF_BASH_IS_ASH(APPLET_ODDNAME(bash, ash, BB_DIR_BIN, BB_SUID_DROP, ash)) 217//applet:IF_BASH_IS_ASH(APPLET_ODDNAME(bash, ash, BB_DIR_BIN, BB_SUID_DROP, ash))
179 218
180//kbuild:lib-$(CONFIG_SHELL_ASH) += ash.o ash_ptr_hack.o shell_common.o 219//kbuild:lib-$(CONFIG_SHELL_ASH) += ash.o ash_ptr_hack.o shell_common.o
@@ -195,7 +234,17 @@
195 234
196#define PROFILE 0 235#define PROFILE 0
197 236
237/*
238 * Only one of JOBS or JOBS_WIN32 is enabled at a time (or neither).
239 * JOBS_WIN32 doesn't enable job control, just some job-related features.
240 */
241#if ENABLE_PLATFORM_MINGW32
242#define JOBS_WIN32 ENABLE_ASH_JOB_CONTROL
243#define JOBS 0
244#else
245#define JOBS_WIN32 0
198#define JOBS ENABLE_ASH_JOB_CONTROL 246#define JOBS ENABLE_ASH_JOB_CONTROL
247#endif
199 248
200#include <fnmatch.h> 249#include <fnmatch.h>
201#include <sys/times.h> 250#include <sys/times.h>
@@ -206,6 +255,10 @@
206#else 255#else
207# define NUM_SCRIPTS 0 256# define NUM_SCRIPTS 0
208#endif 257#endif
258#if ENABLE_PLATFORM_MINGW32
259# include <conio.h>
260# include "lazyload.h"
261#endif
209 262
210/* So far, all bash compat is controlled by one config option */ 263/* So far, all bash compat is controlled by one config option */
211/* Separate defines document which part of code implements what */ 264/* Separate defines document which part of code implements what */
@@ -316,10 +369,89 @@ typedef long arith_t;
316# define unlikely(cond) (cond) 369# define unlikely(cond) (cond)
317#endif 370#endif
318 371
372#if !ENABLE_PLATFORM_MINGW32
373# define is_relative_path(path) ((path)[0] != '/')
374#endif
375
319#if !BB_MMU 376#if !BB_MMU
320# error "Do not even bother, ash will not run on NOMMU machine" 377# error "Do not even bother, ash will not run on NOMMU machine"
321#endif 378#endif
322 379
380#if ENABLE_PLATFORM_MINGW32
381# define FORKSHELL_DEBUG 0
382
383union node;
384struct strlist;
385struct job;
386
387struct forkshell {
388 /* filled by forkshell_copy() */
389 struct globals_var *gvp;
390 struct globals_misc *gmp;
391 struct tblentry **cmdtable;
392#if ENABLE_ASH_ALIAS
393 struct alias **atab;
394#endif
395#if MAX_HISTORY
396 char **history;
397 int cnt_history;
398#endif
399#if JOBS_WIN32
400 struct job *jobtab;
401 unsigned njobs;
402 struct job *curjob;
403#endif
404 /* struct parsefile *g_parsefile; */
405 HANDLE hMapFile;
406 char *old_base;
407 int size;
408# if FORKSHELL_DEBUG
409 int funcblocksize;
410 int funcstringsize;
411# endif
412 int relocatesize;
413
414 /* type of forkshell */
415 int fpid;
416
417 /* generic data, used by forkshell_child */
418 int mode;
419 int nprocs;
420#if JOBS_WIN32
421 int jpnull;
422#endif
423
424 /* optional data, used by forkshell_child */
425 int flags;
426 int fd[3];
427 union node *n;
428 char **argv;
429 char *path;
430};
431
432enum {
433 FS_OPENHERE,
434 FS_EVALBACKCMD,
435 FS_EVALSUBSHELL,
436 FS_EVALPIPE,
437 FS_SHELLEXEC
438};
439
440static struct forkshell* forkshell_prepare(struct forkshell *fs);
441static void forkshell_init(const char *idstr);
442static void *sticky_mem_start, *sticky_mem_end;
443static void sticky_free(void *p);
444# define free(p) sticky_free(p)
445#if !JOBS && !JOBS_WIN32
446#define spawn_forkshell(fs, jp, n, mode) spawn_forkshell(fs, jp, mode)
447#endif
448static void spawn_forkshell(struct forkshell *fs, struct job *jp,
449 union node *n, int mode);
450# if FORKSHELL_DEBUG
451static void forkshell_print(FILE *fp0, struct forkshell *fs, const char **notes);
452# endif
453#endif
454
323/* ============ Hash table sizes. Configurable. */ 455/* ============ Hash table sizes. Configurable. */
324 456
325#define VTABSIZE 39 457#define VTABSIZE 39
@@ -347,7 +479,11 @@ static const char *const optletters_optnames[] ALIGN_PTR = {
347 "m" "monitor", 479 "m" "monitor",
348 "n" "noexec", 480 "n" "noexec",
349/* Ditto: bash has no "set -s", "set -c" */ 481/* Ditto: bash has no "set -s", "set -c" */
482#if !ENABLE_PLATFORM_MINGW32
350 "s" "", 483 "s" "",
484#else
485 "s" "stdin",
486#endif
351 "c" "", 487 "c" "",
352 "x" "xtrace", 488 "x" "xtrace",
353 "v" "verbose", 489 "v" "verbose",
@@ -364,6 +500,18 @@ static const char *const optletters_optnames[] ALIGN_PTR = {
364 ,"\0" "nolog" 500 ,"\0" "nolog"
365 ,"\0" "debug" 501 ,"\0" "debug"
366#endif 502#endif
503#if ENABLE_PLATFORM_MINGW32
504 ,"X" "winxp"
505#endif
506#if ENABLE_ASH_NOCONSOLE
507 ,"\0" "noconsole"
508 ,"\0" "noiconify"
509#endif
510#if ENABLE_ASH_GLOB_OPTIONS
511 ,"\0" "nocaseglob"
512 ,"\0" "nohiddenglob"
513 ,"\0" "nohidsysglob"
514#endif
367}; 515};
368//bash 4.4.23 also has these opts (with these defaults): 516//bash 4.4.23 also has these opts (with these defaults):
369//braceexpand on 517//braceexpand on
@@ -406,21 +554,36 @@ struct jmploc {
406struct globals_misc { 554struct globals_misc {
407 uint8_t exitstatus; /* exit status of last command */ 555 uint8_t exitstatus; /* exit status of last command */
408 uint8_t back_exitstatus;/* exit status of backquoted command */ 556 uint8_t back_exitstatus;/* exit status of backquoted command */
557#if !ENABLE_PLATFORM_MINGW32
409 smallint job_warning; /* user was warned about stopped jobs (can be 2, 1 or 0). */ 558 smallint job_warning; /* user was warned about stopped jobs (can be 2, 1 or 0). */
559#endif
410 smallint inps4; /* Prevent PS4 nesting. */ 560 smallint inps4; /* Prevent PS4 nesting. */
411 int savestatus; /* exit status of last command outside traps */ 561 int savestatus; /* exit status of last command outside traps */
412 int rootpid; /* pid of main shell */ 562 int rootpid; /* pid of main shell */
413 /* shell level: 0 for the main shell, 1 for its children, and so on */ 563 /* shell level: 0 for the main shell, 1 for its children, and so on */
414 int shlvl; 564 int shlvl;
565#if ENABLE_PLATFORM_MINGW32
566 int loopnest; /* current loop nesting level */
567#endif
415#define rootshell (!shlvl) 568#define rootshell (!shlvl)
416 int errlinno; 569 int errlinno;
417 570
418 char *minusc; /* argument to -c option */ 571 char *minusc; /* argument to -c option */
572#if ENABLE_PLATFORM_MINGW32
573 char *dirarg; /* argument to -d option */
574 char *title; /* argument to -t option */
575#if ENABLE_SUW32
576 int delayexit; /* set by -N option */
577# endif
578#endif
419 579
420 char *curdir; // = nullstr; /* current working directory */ 580 char *curdir; // = nullstr; /* current working directory */
421 char *physdir; // = nullstr; /* physical working directory */ 581 char *physdir; // = nullstr; /* physical working directory */
422 582
423 char *arg0; /* value of $0 */ 583 char *arg0; /* value of $0 */
584#if ENABLE_PLATFORM_MINGW32
585 char *commandname;
586#endif
424 587
425 struct jmploc *exception_handler; 588 struct jmploc *exception_handler;
426 589
@@ -431,8 +594,10 @@ struct globals_misc {
431 * but we do read it async. 594 * but we do read it async.
432 */ 595 */
433 volatile /*sig_atomic_t*/ smallint pending_int; /* 1 = got SIGINT */ 596 volatile /*sig_atomic_t*/ smallint pending_int; /* 1 = got SIGINT */
597#if !ENABLE_PLATFORM_MINGW32
434 volatile /*sig_atomic_t*/ smallint got_sigchld; /* 1 = got SIGCHLD */ 598 volatile /*sig_atomic_t*/ smallint got_sigchld; /* 1 = got SIGCHLD */
435 volatile /*sig_atomic_t*/ smallint pending_sig; /* last pending signal */ 599 volatile /*sig_atomic_t*/ smallint pending_sig; /* last pending signal */
600#endif
436 smallint exception_type; /* kind of exception: */ 601 smallint exception_type; /* kind of exception: */
437#define EXINT 0 /* SIGINT received */ 602#define EXINT 0 /* SIGINT received */
438#define EXERROR 1 /* a generic error */ 603#define EXERROR 1 /* a generic error */
@@ -467,8 +632,21 @@ struct globals_misc {
467# define nolog optlist[16 + BASH_PIPEFAIL] 632# define nolog optlist[16 + BASH_PIPEFAIL]
468# define debug optlist[17 + BASH_PIPEFAIL] 633# define debug optlist[17 + BASH_PIPEFAIL]
469#endif 634#endif
635#if ENABLE_PLATFORM_MINGW32
636# define winxp optlist[16 + BASH_PIPEFAIL + 2*(DEBUG != 0)]
637# if ENABLE_ASH_NOCONSOLE
638# define noconsole optlist[17 + BASH_PIPEFAIL + 2*(DEBUG != 0)]
639# define noiconify optlist[18 + BASH_PIPEFAIL + 2*(DEBUG != 0)]
640# endif
641# if ENABLE_ASH_GLOB_OPTIONS
642# define nocaseglob optlist[17 + BASH_PIPEFAIL + 2*(DEBUG != 0) + 2*ENABLE_ASH_NOCONSOLE]
643# define nohiddenglob optlist[18 + BASH_PIPEFAIL + 2*(DEBUG != 0) + 2*ENABLE_ASH_NOCONSOLE]
644# define nohidsysglob optlist[19 + BASH_PIPEFAIL + 2*(DEBUG != 0) + 2*ENABLE_ASH_NOCONSOLE]
645# endif
646#endif
470 647
471 /* trap handler commands */ 648 /* trap handler commands */
649#if !ENABLE_PLATFORM_MINGW32
472 /* 650 /*
473 * Sigmode records the current value of the signal handlers for the various 651 * Sigmode records the current value of the signal handlers for the various
474 * modes. A value of zero means that the current handler is not known. 652 * modes. A value of zero means that the current handler is not known.
@@ -482,6 +660,7 @@ struct globals_misc {
482 660
483 /* indicates specified signal received */ 661 /* indicates specified signal received */
484 uint8_t gotsig[NSIG - 1]; /* offset by 1: "signal" 0 is meaningless */ 662 uint8_t gotsig[NSIG - 1]; /* offset by 1: "signal" 0 is meaningless */
663#endif
485 uint8_t may_have_traps; /* 0: definitely no traps are set, 1: some traps may be set */ 664 uint8_t may_have_traps; /* 0: definitely no traps are set, 1: some traps may be set */
486 char *trap[NSIG + 1]; 665 char *trap[NSIG + 1];
487/* trap[0] is EXIT trap, trap[NTRAP_ERR] is ERR trap, other trap[i] are signal traps */ 666/* trap[0] is EXIT trap, trap[NTRAP_ERR] is ERR trap, other trap[i] are signal traps */
@@ -510,10 +689,21 @@ extern struct globals_misc *BB_GLOBAL_CONST ash_ptr_to_globals_misc;
510#define rootpid (G_misc.rootpid ) 689#define rootpid (G_misc.rootpid )
511#define shlvl (G_misc.shlvl ) 690#define shlvl (G_misc.shlvl )
512#define errlinno (G_misc.errlinno ) 691#define errlinno (G_misc.errlinno )
692#if ENABLE_PLATFORM_MINGW32
693#define loopnest (G_misc.loopnest )
694#endif
513#define minusc (G_misc.minusc ) 695#define minusc (G_misc.minusc )
696#if ENABLE_PLATFORM_MINGW32
697#define dirarg (G_misc.dirarg )
698#define title (G_misc.title )
699#define delayexit (G_misc.delayexit )
700#endif
514#define curdir (G_misc.curdir ) 701#define curdir (G_misc.curdir )
515#define physdir (G_misc.physdir ) 702#define physdir (G_misc.physdir )
516#define arg0 (G_misc.arg0 ) 703#define arg0 (G_misc.arg0 )
704#if ENABLE_PLATFORM_MINGW32
705#define commandname (G_misc.commandname)
706#endif
517#define exception_handler (G_misc.exception_handler) 707#define exception_handler (G_misc.exception_handler)
518#define exception_type (G_misc.exception_type ) 708#define exception_type (G_misc.exception_type )
519#define suppress_int (G_misc.suppress_int ) 709#define suppress_int (G_misc.suppress_int )
@@ -530,6 +720,13 @@ extern struct globals_misc *BB_GLOBAL_CONST ash_ptr_to_globals_misc;
530#define groupinfo (G_misc.groupinfo ) 720#define groupinfo (G_misc.groupinfo )
531#define random_gen (G_misc.random_gen ) 721#define random_gen (G_misc.random_gen )
532#define backgndpid (G_misc.backgndpid ) 722#define backgndpid (G_misc.backgndpid )
723
724#if ENABLE_PLATFORM_MINGW32
725#undef got_sigchld
726#undef pending_sig
727#define pending_sig (0)
728#endif
729
533#define INIT_G_misc() do { \ 730#define INIT_G_misc() do { \
534 XZALLOC_CONST_PTR(&ash_ptr_to_globals_misc, sizeof(G_misc)); \ 731 XZALLOC_CONST_PTR(&ash_ptr_to_globals_misc, sizeof(G_misc)); \
535 savestatus = -1; \ 732 savestatus = -1; \
@@ -547,6 +744,9 @@ static void trace_printf(const char *fmt, ...);
547static void trace_vprintf(const char *fmt, va_list va); 744static void trace_vprintf(const char *fmt, va_list va);
548# define TRACE(param) trace_printf param 745# define TRACE(param) trace_printf param
549# define TRACEV(param) trace_vprintf param 746# define TRACEV(param) trace_vprintf param
747# if ENABLE_PLATFORM_MINGW32 && defined(close)
748# undef close
749# endif
550# define close(fd) do { \ 750# define close(fd) do { \
551 int dfd = (fd); \ 751 int dfd = (fd); \
552 if (close(dfd) < 0) \ 752 if (close(dfd) < 0) \
@@ -635,11 +835,18 @@ struct parsefile {
635 835
636 /* Number of outstanding calls to pungetc. */ 836 /* Number of outstanding calls to pungetc. */
637 int unget; 837 int unget;
838
839#if ENABLE_PLATFORM_MINGW32
840 /* True if a trailing CR from a previous read was left unprocessed. */
841 int cr;
842#endif
638}; 843};
639 844
640static struct parsefile basepf; /* top level input file */ 845static struct parsefile basepf; /* top level input file */
641static struct parsefile *g_parsefile = &basepf; /* current input file */ 846static struct parsefile *g_parsefile = &basepf; /* current input file */
847#if ENABLE_PLATFORM_POSIX
642static char *commandname; /* currently executing command */ 848static char *commandname; /* currently executing command */
849#endif
643 850
644 851
645/* ============ Interrupts / exceptions */ 852/* ============ Interrupts / exceptions */
@@ -696,21 +903,39 @@ raise_exception(int e)
696 * are held using the INT_OFF macro. (The test for iflag is just 903 * are held using the INT_OFF macro. (The test for iflag is just
697 * defensive programming.) 904 * defensive programming.)
698 */ 905 */
699static void raise_interrupt(void) NORETURN; 906static void raise_interrupt(void) IF_NOT_PLATFORM_MINGW32(NORETURN);
700static void 907static void
701raise_interrupt(void) 908raise_interrupt(void)
702{ 909{
910#if ENABLE_PLATFORM_MINGW32
911 /* Contrary to the comment above on Windows raise_interrupt() is
912 * called when SIGINT is trapped or ignored. We detect this here
913 * and return without doing anything. */
914 if (trap[SIGINT])
915 return;
916#endif
703 pending_int = 0; 917 pending_int = 0;
918#if !ENABLE_PLATFORM_MINGW32
704 /* Signal is not automatically unmasked after it is raised, 919 /* Signal is not automatically unmasked after it is raised,
705 * do it ourself - unmask all signals */ 920 * do it ourself - unmask all signals */
706 sigprocmask_allsigs(SIG_UNBLOCK); 921 sigprocmask_allsigs(SIG_UNBLOCK);
922#endif
707 /* pending_sig = 0; - now done in signal_handler() */ 923 /* pending_sig = 0; - now done in signal_handler() */
708 924
709 if (!(rootshell && iflag)) { 925 if (!(rootshell && iflag)) {
926#if !ENABLE_PLATFORM_MINGW32
710 /* Kill ourself with SIGINT */ 927 /* Kill ourself with SIGINT */
711 signal(SIGINT, SIG_DFL); 928 signal(SIGINT, SIG_DFL);
712 raise(SIGINT); 929 raise(SIGINT);
930#else
931 fflush_all();
932 _exit(SIGINT << 24);
933#endif
713 } 934 }
935#if ENABLE_PLATFORM_MINGW32
936 if (iflag)
937 write(STDOUT_FILENO, "^C", 2);
938#endif
714 /* bash: ^C even on empty command line sets $? */ 939 /* bash: ^C even on empty command line sets $? */
715 exitstatus = SIGINT + 128; 940 exitstatus = SIGINT + 128;
716 raise_exception(EXINT); 941 raise_exception(EXINT);
@@ -1998,6 +2223,18 @@ maybe_single_quote(const char *s)
1998 return single_quote(s); 2223 return single_quote(s);
1999} 2224}
2000 2225
2226#if ENABLE_PLATFORM_MINGW32
2227/* Copy path to a string on the stack long enough to allow a file extension
2228 * to be added. */
2229static char *
2230stack_add_ext_space(const char *path)
2231{
2232 char *p = growstackto(strlen(path) + 5);
2233 strcpy(p, path);
2234 return p;
2235}
2236#endif
2237
2001 2238
2002/* ============ nextopt */ 2239/* ============ nextopt */
2003 2240
@@ -2120,6 +2357,9 @@ struct localvar {
2120#else 2357#else
2121# define VDYNAMIC 0 2358# define VDYNAMIC 0
2122#endif 2359#endif
2360#if ENABLE_PLATFORM_MINGW32
2361# define VIMPORT 0x400 /* variable was imported from environment */
2362#endif
2123 2363
2124 2364
2125/* Need to be before varinit_data[] */ 2365/* Need to be before varinit_data[] */
@@ -2149,6 +2389,24 @@ static void change_seconds(const char *) FAST_FUNC;
2149static void change_realtime(const char *) FAST_FUNC; 2389static void change_realtime(const char *) FAST_FUNC;
2150#endif 2390#endif
2151 2391
2392#if ENABLE_PLATFORM_MINGW32
2393static void FAST_FUNC
2394change_terminal_mode(const char *newval UNUSED_PARAM)
2395{
2396 terminal_mode(TRUE);
2397}
2398
2399static void clearcmdentry(void);
2400static void FAST_FUNC
2401change_override_applets(const char *newval UNUSED_PARAM)
2402{
2403 clearcmdentry();
2404}
2405
2406# define LINENO_INDEX (5 + 2 * ENABLE_ASH_MAIL + ENABLE_ASH_GETOPTS)
2407# define FUNCNAME_INDEX (LINENO_INDEX + 1)
2408#endif
2409
2152static const struct { 2410static const struct {
2153 int flags; 2411 int flags;
2154 const char *var_text; 2412 const char *var_text;
@@ -2186,6 +2444,12 @@ static const struct {
2186#if ENABLE_FEATURE_EDITING_SAVEHISTORY 2444#if ENABLE_FEATURE_EDITING_SAVEHISTORY
2187 { VSTRFIXED|VTEXTFIXED|VUNSET, "HISTFILE" , NULL }, 2445 { VSTRFIXED|VTEXTFIXED|VUNSET, "HISTFILE" , NULL },
2188#endif 2446#endif
2447#if ENABLE_PLATFORM_MINGW32
2448 { VSTRFIXED|VTEXTFIXED|VUNSET, BB_SKIP_ANSI_EMULATION, change_terminal_mode },
2449 { VSTRFIXED|VTEXTFIXED|VUNSET, BB_TERMINAL_MODE, change_terminal_mode },
2450 { VSTRFIXED|VTEXTFIXED|VUNSET, BB_OVERRIDE_APPLETS, change_override_applets },
2451 { VSTRFIXED|VTEXTFIXED|VUNSET, BB_CRITICAL_ERROR_DIALOGS, change_critical_error_dialogs },
2452#endif
2189}; 2453};
2190 2454
2191struct redirtab; 2455struct redirtab;
@@ -2409,6 +2673,65 @@ bltinlookup(const char *name)
2409 return lookupvar(name); 2673 return lookupvar(name);
2410} 2674}
2411 2675
2676#if ENABLE_PLATFORM_MINGW32
2677static char *
2678fix_pathvar(const char *path, int len)
2679{
2680 char *newpath = xstrdup(path);
2681 char *p;
2682 int modified = FALSE;
2683
2684 p = newpath + len;
2685 while (*p) {
2686 if (*p != ':' && *p != ';') {
2687 /* skip drive */
2688 if (isalpha(*p) && p[1] == ':')
2689 p += 2;
2690 /* skip through path component */
2691 for (; *p != '\0' && *p != ':' && *p != ';'; ++p)
2692 continue;
2693 }
2694 /* *p is ':', ';' or '\0' here */
2695 if (*p == ':') {
2696 *p++ = ';';
2697 modified = TRUE;
2698 }
2699 else if (*p == ';') {
2700 ++p;
2701 }
2702 }
2703
2704 if (!modified) {
2705 free(newpath);
2706 newpath = NULL;
2707 }
2708 return newpath;
2709}
2710
2711#define BB_VAR_EXACT 1 /* exact match for name */
2712#define BB_VAR_ASSIGN -1 /* matches name followed by '=' */
2713
2714/* Match variables that should be placed in the environment immediately
2715 * they're exported and removed immediately they're no longer exported */
2716static int
2717is_bb_var(const char *s)
2718{
2719 const char *p;
2720 int len;
2721
2722 for (p = bbvar; *p; p += len + 1) {
2723 len = strlen(p);
2724 if (strncmp(s, p, len) == 0) {
2725 if (s[len] == '\0')
2726 return BB_VAR_EXACT;
2727 else if (s[len] == '=')
2728 return BB_VAR_ASSIGN;
2729 }
2730 }
2731 return FALSE;
2732}
2733#endif
2734
2412/* 2735/*
2413 * Same as setvar except that the variable and value are passed in 2736 * Same as setvar except that the variable and value are passed in
2414 * the first argument as name=value. Since the first argument will 2737 * the first argument as name=value. Since the first argument will
@@ -2420,6 +2743,26 @@ static struct var *
2420setvareq(char *s, int flags) 2743setvareq(char *s, int flags)
2421{ 2744{
2422 struct var *vp, **vpp; 2745 struct var *vp, **vpp;
2746#if ENABLE_PLATFORM_MINGW32
2747 const char *paths = "PATH=\0""CDPATH=\0""MANPATH=\0";
2748 const char *p;
2749 int len;
2750
2751 for (p = paths; *p; p += len + 1) {
2752 len = strlen(p);
2753 if (strncmp(s, p, len) == 0) {
2754 char *newpath = fix_pathvar(s, len);
2755 if (newpath) {
2756 if ((flags & (VTEXTFIXED|VSTACK|VNOSAVE)) == VNOSAVE)
2757 free(s);
2758 flags |= VNOSAVE;
2759 flags &= ~(VTEXTFIXED|VSTACK);
2760 s = newpath;
2761 }
2762 break;
2763 }
2764 }
2765#endif
2423 2766
2424 flags |= (VEXPORT & (((unsigned) (1 - aflag)) - 1)); 2767 flags |= (VEXPORT & (((unsigned) (1 - aflag)) - 1));
2425 vpp = findvar(s); 2768 vpp = findvar(s);
@@ -2444,6 +2787,11 @@ setvareq(char *s, int flags)
2444 if (!(vp->flags & (VTEXTFIXED|VSTACK))) 2787 if (!(vp->flags & (VTEXTFIXED|VSTACK)))
2445 free((char*)vp->var_text); 2788 free((char*)vp->var_text);
2446 2789
2790#if ENABLE_PLATFORM_MINGW32
2791 if ((flags & VUNSET) && (vp->flags & VEXPORT) &&
2792 is_bb_var(s) == BB_VAR_EXACT)
2793 unsetenv(s);
2794#endif
2447 if (((flags & (VEXPORT|VREADONLY|VSTRFIXED|VUNSET)) | (vp->flags & VSTRFIXED)) == VUNSET) { 2795 if (((flags & (VEXPORT|VREADONLY|VSTRFIXED|VUNSET)) | (vp->flags & VSTRFIXED)) == VUNSET) {
2448 *vpp = vp->next; 2796 *vpp = vp->next;
2449 free(vp); 2797 free(vp);
@@ -2473,6 +2821,10 @@ setvareq(char *s, int flags)
2473 s = ckstrdup(s); 2821 s = ckstrdup(s);
2474 vp->var_text = s; 2822 vp->var_text = s;
2475 vp->flags = flags; 2823 vp->flags = flags;
2824#if ENABLE_PLATFORM_MINGW32
2825 if ((flags & VEXPORT) && is_bb_var(s) == BB_VAR_ASSIGN)
2826 putenv(s);
2827#endif
2476 2828
2477 out: 2829 out:
2478 return vp; 2830 return vp;
@@ -2594,6 +2946,65 @@ listvars(int on, int off, struct strlist *lp, char ***end)
2594 return grabstackstr(ep); 2946 return grabstackstr(ep);
2595} 2947}
2596 2948
2949#if ENABLE_PLATFORM_MINGW32
2950/* Adjust directory separator in variables imported from the environment */
2951static void
2952setwinxp(int on)
2953{
2954 static smallint is_winxp = 1;
2955 struct var **vpp;
2956 struct var *vp;
2957
2958 if (on == is_winxp)
2959 return;
2960 is_winxp = on;
2961
2962 for (vpp = vartab; vpp < vartab + VTABSIZE; vpp++) {
2963 for (vp = *vpp; vp; vp = vp->next) {
2964 if ((vp->flags & VIMPORT)) {
2965 char *end = strchr(vp->var_text, '=');
2966 if (!end || is_prefixed_with(vp->var_text, "COMSPEC=") ||
2967 is_prefixed_with(vp->var_text, "SYSTEMROOT="))
2968 continue;
2969 if (!on)
2970 bs_to_slash(end + 1);
2971 else
2972 slash_to_bs(end + 1);
2973 }
2974 }
2975 }
2976}
2977
2978# if ENABLE_ASH_NOCONSOLE
2979/*
2980 * Console state is either:
2981 * 0 normal
2982 * 1 iconified/hidden
2983 * 2 unknown
2984 */
2985static int console_state(void)
2986{
2987 DECLARE_PROC_ADDR(BOOL, ShowWindow, HWND, int);
2988
2989 if (INIT_PROC_ADDR(user32.dll, ShowWindow)) {
2990 BOOL visible = IsWindowVisible(GetConsoleWindow());
2991 BOOL iconified = IsIconic(GetConsoleWindow());
2992
2993 return !visible || iconified;
2994 }
2995 return 2;
2996}
2997
2998static void hide_console(int hide)
2999{
3000 // Switch console state if it's known and isn't the required state
3001 if (console_state() == !hide)
3002 ShowWindow(GetConsoleWindow(), hide ?
3003 (noiconify ? SW_HIDE : SW_MINIMIZE) : SW_NORMAL);
3004}
3005# endif
3006#endif
3007
2597 3008
2598/* ============ Path search helper */ 3009/* ============ Path search helper */
2599static const char * 3010static const char *
@@ -2637,7 +3048,7 @@ static const char *pathopt; /* set by padvance */
2637static int 3048static int
2638padvance_magic(const char **path, const char *name, int magic) 3049padvance_magic(const char **path, const char *name, int magic)
2639{ 3050{
2640 const char *term = "%:"; 3051 const char *term = "%"PATH_SEP_STR;
2641 const char *lpathopt; 3052 const char *lpathopt;
2642 const char *p; 3053 const char *p;
2643 char *q; 3054 char *q;
@@ -2654,14 +3065,14 @@ padvance_magic(const char **path, const char *name, int magic)
2654 if (*start == '%' && (p = legal_pathopt(start + 1, term, magic))) { 3065 if (*start == '%' && (p = legal_pathopt(start + 1, term, magic))) {
2655 lpathopt = start + 1; 3066 lpathopt = start + 1;
2656 start = p; 3067 start = p;
2657 term = ":"; 3068 term = PATH_SEP_STR;
2658 } 3069 }
2659 3070
2660 len = strcspn(start, term); 3071 len = strcspn(start, term);
2661 p = start + len; 3072 p = start + len;
2662 3073
2663 if (*p == '%') { 3074 if (*p == '%') {
2664 size_t extra = strchrnul(p, ':') - p; 3075 size_t extra = strchrnul(p, PATH_SEP) - p;
2665 3076
2666 if (legal_pathopt(p + 1, term, magic)) 3077 if (legal_pathopt(p + 1, term, magic))
2667 lpathopt = p + 1; 3078 lpathopt = p + 1;
@@ -2672,14 +3083,18 @@ padvance_magic(const char **path, const char *name, int magic)
2672 } 3083 }
2673 3084
2674 pathopt = lpathopt; 3085 pathopt = lpathopt;
2675 *path = *p == ':' ? p + 1 : NULL; 3086 *path = *p == PATH_SEP ? p + 1 : NULL;
2676 3087
2677 /* "2" is for '/' and '\0' */ 3088 /* "2" is for '/' and '\0' */
2678 qlen = len + strlen(name) + 2; 3089 /* reserve space for suffix on WIN32 */
3090 qlen = len + strlen(name) + 2 IF_PLATFORM_MINGW32(+ 4);
2679 q = growstackto(qlen); 3091 q = growstackto(qlen);
2680 3092
2681 if (len) { 3093 if (len) {
2682 q = mempcpy(q, start, len); 3094 q = mempcpy(q, start, len);
3095#if ENABLE_PLATFORM_MINGW32
3096 if (q[-1] != '/' && q[-1] != '\\')
3097#endif
2683 *q++ = '/'; 3098 *q++ = '/';
2684 } 3099 }
2685 strcpy(q, name); 3100 strcpy(q, name);
@@ -2770,6 +3185,7 @@ setprompt_if(smallint do_set, int whichprompt)
2770 3185
2771#define CD_PHYSICAL 1 3186#define CD_PHYSICAL 1
2772#define CD_PRINT 2 3187#define CD_PRINT 2
3188#define CD_PRINT_ALL 4
2773 3189
2774static int 3190static int
2775cdopt(void) 3191cdopt(void)
@@ -2778,7 +3194,14 @@ cdopt(void)
2778 int i, j; 3194 int i, j;
2779 3195
2780 j = 'L'; 3196 j = 'L';
3197#if ENABLE_PLATFORM_MINGW32
3198 while ((i = nextopt("LPa")) != '\0') {
3199 if (i == 'a')
3200 flags |= CD_PRINT_ALL;
3201 else
3202#else
2781 while ((i = nextopt("LP")) != '\0') { 3203 while ((i = nextopt("LP")) != '\0') {
3204#endif
2782 if (i != j) { 3205 if (i != j) {
2783 flags ^= CD_PHYSICAL; 3206 flags ^= CD_PHYSICAL;
2784 j = i; 3207 j = i;
@@ -2795,6 +3218,130 @@ cdopt(void)
2795static const char * 3218static const char *
2796updatepwd(const char *dir) 3219updatepwd(const char *dir)
2797{ 3220{
3221#if ENABLE_PLATFORM_MINGW32
3222 /*
3223 * Due to Windows drive notion, getting pwd is a completely
3224 * different thing. Handle it in a separate routine
3225 */
3226
3227 char *new;
3228 char *p;
3229 char *cdcomppath;
3230 const char *lim;
3231 int len;
3232 char buffer[PATH_MAX];
3233 /*
3234 * There are five cases that make some kind of sense
3235 *
3236 * Absolute paths:
3237 * c:/path
3238 * //host/share
3239 *
3240 * Relative to current working directory of other drive:
3241 * c:path
3242 *
3243 * Relative to current root (drive/share):
3244 * /path
3245 *
3246 * Relative to current working directory of current root (drive/share):
3247 * path
3248 */
3249 enum {ABS_DRIVE, ABS_SHARE, REL_OTHER, REL_ROOT, REL_CWD} target;
3250
3251 /* skip multiple leading separators unless dir is a UNC path */
3252 if (is_dir_sep(*dir) && unc_root_len(dir) == 0) {
3253 while (is_dir_sep(dir[1]))
3254 ++dir;
3255 }
3256
3257 len = strlen(dir);
3258 if (len >= 2 && has_dos_drive_prefix(dir))
3259 target = len >= 3 && is_dir_sep(dir[2]) ? ABS_DRIVE : REL_OTHER;
3260 else if (unc_root_len(dir) != 0)
3261 target = ABS_SHARE;
3262 else if (is_dir_sep(*dir))
3263 target = REL_ROOT;
3264 else
3265 target = REL_CWD;
3266
3267 cdcomppath = sstrdup(dir);
3268 STARTSTACKSTR(new);
3269
3270 switch (target) {
3271 case REL_OTHER:
3272 /* c:path */
3273 if (get_drive_cwd(dir, buffer, PATH_MAX) == NULL)
3274 return 0;
3275 new = stack_putstr(buffer, new);
3276 len = 2;
3277 cdcomppath += len;
3278 dir += len;
3279 break;
3280 case REL_CWD:
3281 case REL_ROOT:
3282 /* path or /path */
3283 len = root_len(curdir);
3284 if (len == 0)
3285 return 0;
3286 new = target == REL_CWD ? stack_putstr(curdir, new) :
3287 stnputs(curdir, len, new);
3288 break;
3289 default:
3290 /* //host/share or c:/path */
3291 len = root_len(dir);
3292 if (len == 0)
3293 return 0;
3294 new = stnputs(dir, len, new);
3295 cdcomppath += len;
3296 dir += len;
3297 break;
3298 }
3299
3300 new = makestrspace(strlen(dir) + 2, new);
3301 lim = (char *)stackblock() + len + 1;
3302
3303 if (!is_dir_sep(*dir)) {
3304 if (!is_dir_sep(new[-1]))
3305 USTPUTC('/', new);
3306 if (new > lim && is_dir_sep(*lim))
3307 lim++;
3308 } else {
3309 USTPUTC('/', new);
3310 cdcomppath++;
3311 if (is_dir_sep(dir[1]) && !is_dir_sep(dir[2])) {
3312 USTPUTC('/', new);
3313 cdcomppath++;
3314 lim++;
3315 }
3316 }
3317 p = strtok(cdcomppath, "/\\");
3318 while (p) {
3319 switch (*p) {
3320 case '.':
3321 if (p[1] == '.' && p[2] == '\0') {
3322 while (new > lim) {
3323 STUNPUTC(new);
3324 if (is_dir_sep(new[-1]))
3325 break;
3326 }
3327 break;
3328 }
3329 if (p[1] == '\0')
3330 break;
3331 /* fall through */
3332 default:
3333 new = stack_putstr(p, new);
3334 USTPUTC('/', new);
3335 }
3336 p = strtok(NULL, "/\\");
3337 }
3338 if (new > lim)
3339 STUNPUTC(new);
3340 *new = 0;
3341 strip_dot_space((char *)stackblock());
3342 fix_path_case((char *)stackblock());
3343 return bs_to_slash((char *)stackblock());
3344#else
2798 char *new; 3345 char *new;
2799 char *p; 3346 char *p;
2800 char *cdcomppath; 3347 char *cdcomppath;
@@ -2848,6 +3395,7 @@ updatepwd(const char *dir)
2848 STUNPUTC(new); 3395 STUNPUTC(new);
2849 *new = 0; 3396 *new = 0;
2850 return stackblock(); 3397 return stackblock();
3398#endif
2851} 3399}
2852 3400
2853/* 3401/*
@@ -2943,7 +3491,7 @@ cdcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
2943 } 3491 }
2944 if (!dest) 3492 if (!dest)
2945 dest = nullstr; 3493 dest = nullstr;
2946 if (*dest == '/') 3494 if (!is_relative_path(dest))
2947 goto step6; 3495 goto step6;
2948 if (*dest == '.') { 3496 if (*dest == '.') {
2949 c = dest[1]; 3497 c = dest[1];
@@ -2966,7 +3514,7 @@ cdcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
2966 p = stalloc(len); 3514 p = stalloc(len);
2967 3515
2968 if (stat(p, &statb) >= 0 && S_ISDIR(statb.st_mode)) { 3516 if (stat(p, &statb) >= 0 && S_ISDIR(statb.st_mode)) {
2969 if (c && c != ':') 3517 if (c && c != PATH_SEP)
2970 flags |= CD_PRINT; 3518 flags |= CD_PRINT;
2971 docd: 3519 docd:
2972 if (!docd(p, flags)) 3520 if (!docd(p, flags))
@@ -2988,6 +3536,26 @@ cdcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
2988 return 0; 3536 return 0;
2989} 3537}
2990 3538
3539#if ENABLE_PLATFORM_MINGW32
3540static void
3541print_all_cwd(void)
3542{
3543 FILE *mnt;
3544 struct mntent *entry;
3545 char buffer[PATH_MAX];
3546
3547 mnt = setmntent(bb_path_mtab_file, "r");
3548 if (mnt) {
3549 while ((entry=getmntent(mnt)) != NULL) {
3550 entry->mnt_dir[2] = '\0';
3551 if (get_drive_cwd(entry->mnt_dir, buffer, PATH_MAX) != NULL)
3552 out1fmt("%s\n", buffer);
3553 }
3554 endmntent(mnt);
3555 }
3556}
3557#endif
3558
2991static int FAST_FUNC 3559static int FAST_FUNC
2992pwdcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM) 3560pwdcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
2993{ 3561{
@@ -2995,6 +3563,12 @@ pwdcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
2995 const char *dir = curdir; 3563 const char *dir = curdir;
2996 3564
2997 flags = cdopt(); 3565 flags = cdopt();
3566#if ENABLE_PLATFORM_MINGW32
3567 if (flags & CD_PRINT_ALL) {
3568 print_all_cwd();
3569 return 0;
3570 }
3571#endif
2998 if (flags) { 3572 if (flags) {
2999 if (physdir == nullstr) 3573 if (physdir == nullstr)
3000 setpwd(dir, 0); 3574 setpwd(dir, 0);
@@ -3623,7 +4197,12 @@ unaliascmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
3623struct procstat { 4197struct procstat {
3624 pid_t ps_pid; /* process id */ 4198 pid_t ps_pid; /* process id */
3625 int ps_status; /* last process status from wait() */ 4199 int ps_status; /* last process status from wait() */
4200#if ENABLE_PLATFORM_POSIX || JOBS_WIN32
3626 char *ps_cmd; /* text of command being run */ 4201 char *ps_cmd; /* text of command being run */
4202#endif
4203#if ENABLE_PLATFORM_MINGW32
4204 HANDLE ps_proc;
4205#endif
3627}; 4206};
3628 4207
3629struct job { 4208struct job {
@@ -3639,8 +4218,10 @@ struct job {
3639#define JOBDONE 2 /* all procs are completed */ 4218#define JOBDONE 2 /* all procs are completed */
3640 unsigned 4219 unsigned
3641 state: 8, 4220 state: 8,
3642#if JOBS 4221#if JOBS || ENABLE_PLATFORM_MINGW32
3643 sigint: 1, /* job was killed by SIGINT */ 4222 sigint: 1, /* job was killed by SIGINT */
4223#endif
4224#if JOBS
3644 jobctl: 1, /* job running under job control */ 4225 jobctl: 1, /* job running under job control */
3645#endif 4226#endif
3646 waited: 1, /* true if this entry has been waited for */ 4227 waited: 1, /* true if this entry has been waited for */
@@ -3650,17 +4231,23 @@ struct job {
3650}; 4231};
3651 4232
3652static struct job *makejob(/*union node *,*/ int); 4233static struct job *makejob(/*union node *,*/ int);
4234#if !ENABLE_PLATFORM_MINGW32
3653static int forkshell(struct job *, union node *, int); 4235static int forkshell(struct job *, union node *, int);
4236#endif
3654static int waitforjob(struct job *); 4237static int waitforjob(struct job *);
3655 4238
3656#if !JOBS 4239#if !JOBS && !JOBS_WIN32
3657enum { doing_jobctl = 0 }; 4240enum { doing_jobctl = 0 };
3658#define setjobctl(on) do {} while (0) 4241#define setjobctl(on) do {} while (0)
3659#else 4242#elif JOBS_WIN32
4243static smallint doing_jobctl; //references:8
4244#define setjobctl(on) do { if (rootshell) doing_jobctl = on; } while (0)
4245#else /* JOBS */
3660static smallint doing_jobctl; //references:8 4246static smallint doing_jobctl; //references:8
3661static void setjobctl(int); 4247static void setjobctl(int);
3662#endif 4248#endif
3663 4249
4250#if !ENABLE_PLATFORM_MINGW32
3664/* 4251/*
3665 * Ignore a signal. 4252 * Ignore a signal.
3666 */ 4253 */
@@ -3809,6 +4396,10 @@ setsignal(int signo)
3809 4396
3810 sigaction_set(signo, &act); 4397 sigaction_set(signo, &act);
3811} 4398}
4399#else
4400#define setsignal(s)
4401#define ignoresig(s)
4402#endif
3812 4403
3813/* mode flags for set_curjob */ 4404/* mode flags for set_curjob */
3814#define CUR_DELETE 2 4405#define CUR_DELETE 2
@@ -3942,7 +4533,7 @@ set_curjob(struct job *jp, unsigned mode)
3942 } 4533 }
3943} 4534}
3944 4535
3945#if JOBS || DEBUG 4536#if JOBS || ENABLE_PLATFORM_MINGW32 || DEBUG
3946static int 4537static int
3947jobno(const struct job *jp) 4538jobno(const struct job *jp)
3948{ 4539{
@@ -3960,7 +4551,9 @@ static struct job *
3960getjob(const char *name, int getctl) 4551getjob(const char *name, int getctl)
3961{ 4552{
3962 struct job *jp; 4553 struct job *jp;
4554#if ENABLE_PLATFORM_POSIX || JOBS_WIN32
3963 struct job *found; 4555 struct job *found;
4556#endif
3964 const char *err_msg = "%s: no such job"; 4557 const char *err_msg = "%s: no such job";
3965 unsigned num; 4558 unsigned num;
3966 int c; 4559 int c;
@@ -4005,6 +4598,7 @@ getjob(const char *name, int getctl)
4005 } 4598 }
4006 } 4599 }
4007 4600
4601#if ENABLE_PLATFORM_POSIX || JOBS_WIN32
4008 found = NULL; 4602 found = NULL;
4009 while (jp) { 4603 while (jp) {
4010 if (*p == '?' 4604 if (*p == '?'
@@ -4021,6 +4615,9 @@ getjob(const char *name, int getctl)
4021 if (!found) 4615 if (!found)
4022 goto err; 4616 goto err;
4023 jp = found; 4617 jp = found;
4618#else
4619 goto err;
4620#endif
4024 4621
4025 gotit: 4622 gotit:
4026#if JOBS 4623#if JOBS
@@ -4039,14 +4636,18 @@ getjob(const char *name, int getctl)
4039static void 4636static void
4040freejob(struct job *jp) 4637freejob(struct job *jp)
4041{ 4638{
4639#if ENABLE_PLATFORM_POSIX || JOBS_WIN32
4042 struct procstat *ps; 4640 struct procstat *ps;
4043 int i; 4641 int i;
4642#endif
4044 4643
4045 INT_OFF; 4644 INT_OFF;
4645#if ENABLE_PLATFORM_POSIX || JOBS_WIN32
4046 for (i = jp->nprocs, ps = jp->ps; --i >= 0; ps++) { 4646 for (i = jp->nprocs, ps = jp->ps; --i >= 0; ps++) {
4047 if (ps->ps_cmd != nullstr) 4647 if (ps->ps_cmd != nullstr)
4048 free(ps->ps_cmd); 4648 free(ps->ps_cmd);
4049 } 4649 }
4650#endif
4050 if (jp->ps != &jp->ps0) 4651 if (jp->ps != &jp->ps0)
4051 free(jp->ps); 4652 free(jp->ps);
4052 jp->used = 0; 4653 jp->used = 0;
@@ -4139,7 +4740,9 @@ setjobctl(int on)
4139 ttyfd = fd; 4740 ttyfd = fd;
4140 doing_jobctl = on; 4741 doing_jobctl = on;
4141} 4742}
4743#endif
4142 4744
4745#if JOBS || JOBS_WIN32
4143static int FAST_FUNC 4746static int FAST_FUNC
4144killcmd(int argc, char **argv) 4747killcmd(int argc, char **argv)
4145{ 4748{
@@ -4169,8 +4772,10 @@ killcmd(int argc, char **argv)
4169 * sh -c 'true|sleep 1 & sleep 2; kill %1' 4772 * sh -c 'true|sleep 1 & sleep 2; kill %1'
4170 */ 4773 */
4171 n = jp->nprocs; /* can't be 0 (I hope) */ 4774 n = jp->nprocs; /* can't be 0 (I hope) */
4775#if !ENABLE_PLATFORM_MINGW32
4172 if (jp->jobctl) 4776 if (jp->jobctl)
4173 n = 1; 4777 n = 1;
4778#endif
4174 dst = alloca(n * sizeof(int)*4); 4779 dst = alloca(n * sizeof(int)*4);
4175 argv[i] = dst; 4780 argv[i] = dst;
4176 for (j = 0; j < n; j++) { 4781 for (j = 0; j < n; j++) {
@@ -4185,7 +4790,11 @@ killcmd(int argc, char **argv)
4185 * leading space. Needed to not confuse 4790 * leading space. Needed to not confuse
4186 * negative pids with "kill -SIGNAL_NO" syntax 4791 * negative pids with "kill -SIGNAL_NO" syntax
4187 */ 4792 */
4793#if !ENABLE_PLATFORM_MINGW32
4188 dst += sprintf(dst, jp->jobctl ? " -%u" : " %u", (int)ps->ps_pid); 4794 dst += sprintf(dst, jp->jobctl ? " -%u" : " %u", (int)ps->ps_pid);
4795#else
4796 dst += sprintf(dst, " -%u", (int)ps->ps_pid);
4797#endif
4189 } 4798 }
4190 *dst = '\0'; 4799 *dst = '\0';
4191 } 4800 }
@@ -4193,7 +4802,9 @@ killcmd(int argc, char **argv)
4193 } 4802 }
4194 return kill_main(argc, argv); 4803 return kill_main(argc, argv);
4195} 4804}
4805#endif
4196 4806
4807#if JOBS
4197static void 4808static void
4198showpipe(struct job *jp /*, FILE *out*/) 4809showpipe(struct job *jp /*, FILE *out*/)
4199{ 4810{
@@ -4298,6 +4909,65 @@ sprint_status48(char *os, int status, int sigonly)
4298 return s - os; 4909 return s - os;
4299} 4910}
4300 4911
4912#if ENABLE_PLATFORM_MINGW32
4913static BOOL WINAPI ctrl_handler(DWORD dwCtrlType)
4914{
4915 if (dwCtrlType == CTRL_C_EVENT || dwCtrlType == CTRL_BREAK_EVENT) {
4916# if ENABLE_FEATURE_EDITING
4917 bb_got_signal = SIGINT; /* for read_line_input: "we got a signal" */
4918# endif
4919 if (!suppress_int && !(rootshell && iflag))
4920 raise_interrupt();
4921 pending_int = 1;
4922 return TRUE;
4923 }
4924 return FALSE;
4925}
4926
4927/*
4928 * Windows does not know about parent-child relationship
4929 * They don't support waitpid(-1)
4930 */
4931static pid_t
4932waitpid_child(int *status, int wait_flags)
4933{
4934 struct job *jb;
4935 int pid_nr = 0;
4936 static HANDLE *proclist = NULL;
4937 static int pid_max = 0;
4938 pid_t pid = -1;
4939 DWORD win_status, idx;
4940 int i;
4941
4942 for (jb = curjob; jb; jb = jb->prev_job) {
4943 if (jb->state != JOBDONE) {
4944 if (pid_nr + jb->nprocs > pid_max) {
4945 pid_max = pid_nr + jb->nprocs;
4946 proclist = ckrealloc(proclist, sizeof(*proclist) * pid_max);
4947 }
4948
4949 for (i = 0; i < jb->nprocs; ++i) {
4950 if (jb->ps[i].ps_proc) {
4951 proclist[pid_nr++] = jb->ps[i].ps_proc;
4952 }
4953 }
4954 }
4955 }
4956
4957 if (pid_nr) {
4958 idx = WaitForMultipleObjects(pid_nr, proclist, FALSE,
4959 wait_flags & WNOHANG ? 0 : INFINITE);
4960 if (idx < pid_nr) {
4961 GetExitCodeProcess(proclist[idx], &win_status);
4962 *status = exit_code_to_wait_status(win_status);
4963 pid = GetProcessId(proclist[idx]);
4964 }
4965 }
4966 return pid;
4967}
4968#define waitpid(p, s, f) waitpid_child(s, f)
4969#endif
4970
4301#define DOWAIT_NONBLOCK 0 4971#define DOWAIT_NONBLOCK 0
4302#define DOWAIT_BLOCK 1 4972#define DOWAIT_BLOCK 1
4303#define DOWAIT_BLOCK_OR_SIG 2 4973#define DOWAIT_BLOCK_OR_SIG 2
@@ -4308,6 +4978,7 @@ sprint_status48(char *os, int status, int sigonly)
4308static int 4978static int
4309waitproc(int block, int *status) 4979waitproc(int block, int *status)
4310{ 4980{
4981#if !ENABLE_PLATFORM_MINGW32
4311 sigset_t oldmask; 4982 sigset_t oldmask;
4312 int flags = block == DOWAIT_BLOCK ? 0 : WNOHANG; 4983 int flags = block == DOWAIT_BLOCK ? 0 : WNOHANG;
4313 int err; 4984 int err;
@@ -4338,6 +5009,11 @@ waitproc(int block, int *status)
4338 } while (got_sigchld); 5009 } while (got_sigchld);
4339 5010
4340 return err; 5011 return err;
5012#else
5013 int flags = block == DOWAIT_BLOCK ? 0 : WNOHANG;
5014 *status = 0;
5015 return waitpid(-1, status, flags);
5016#endif
4341} 5017}
4342 5018
4343static int 5019static int
@@ -4394,6 +5070,10 @@ waitone(int block, struct job *job)
4394 jobno(jp), pid, ps->ps_status, status)); 5070 jobno(jp), pid, ps->ps_status, status));
4395 ps->ps_status = status; 5071 ps->ps_status = status;
4396 thisjob = jp; 5072 thisjob = jp;
5073#if ENABLE_PLATFORM_MINGW32
5074 CloseHandle(ps->ps_proc);
5075 ps->ps_proc = NULL;
5076#endif
4397 } 5077 }
4398 if (ps->ps_status == -1) 5078 if (ps->ps_status == -1)
4399 jobstate = JOBRUNNING; 5079 jobstate = JOBRUNNING;
@@ -4456,6 +5136,7 @@ waitone(int block, struct job *job)
4456static int 5136static int
4457dowait(int block, struct job *jp) 5137dowait(int block, struct job *jp)
4458{ 5138{
5139#if !ENABLE_PLATFORM_MINGW32
4459 smallint gotchld = *(volatile smallint *)&got_sigchld; 5140 smallint gotchld = *(volatile smallint *)&got_sigchld;
4460 int rpid; 5141 int rpid;
4461 int pid; 5142 int pid;
@@ -4477,9 +5158,17 @@ dowait(int block, struct job *jp)
4477 } while (pid >= 0); 5158 } while (pid >= 0);
4478 5159
4479 return rpid; 5160 return rpid;
5161#else
5162 int pid = 1;
5163
5164 while (jp ? jp->state == JOBRUNNING : pid > 0)
5165 pid = waitone(block, jp);
5166
5167 return pid;
5168#endif
4480} 5169}
4481 5170
4482#if JOBS 5171#if JOBS || JOBS_WIN32
4483static void 5172static void
4484showjob(struct job *jp, int mode) 5173showjob(struct job *jp, int mode)
4485{ 5174{
@@ -4494,7 +5183,7 @@ showjob(struct job *jp, int mode)
4494 5183
4495 if (mode & SHOW_ONLY_PGID) { /* jobs -p */ 5184 if (mode & SHOW_ONLY_PGID) { /* jobs -p */
4496 /* just output process (group) id of pipeline */ 5185 /* just output process (group) id of pipeline */
4497 fprintf(out, "%d\n", ps->ps_pid); 5186 fprintf(out, "%"PID_FMT"d\n", ps->ps_pid);
4498 return; 5187 return;
4499 } 5188 }
4500 5189
@@ -4507,7 +5196,7 @@ showjob(struct job *jp, int mode)
4507 s[col - 3] = '-'; 5196 s[col - 3] = '-';
4508 5197
4509 if (mode & SHOW_PIDS) 5198 if (mode & SHOW_PIDS)
4510 col += fmtstr(s + col, 16, "%d ", ps->ps_pid); 5199 col += fmtstr(s + col, 16, "%"PID_FMT"d ", ps->ps_pid);
4511 5200
4512 psend = ps + jp->nprocs; 5201 psend = ps + jp->nprocs;
4513 5202
@@ -4516,8 +5205,10 @@ showjob(struct job *jp, int mode)
4516 col += sizeof("Running") - 1; 5205 col += sizeof("Running") - 1;
4517 } else { 5206 } else {
4518 int status = psend[-1].ps_status; 5207 int status = psend[-1].ps_status;
5208#if !ENABLE_PLATFORM_MINGW32
4519 if (jp->state == JOBSTOPPED) 5209 if (jp->state == JOBSTOPPED)
4520 status = jp->stopstatus; 5210 status = jp->stopstatus;
5211#endif
4521 col += sprint_status48(s + col, status, 0); 5212 col += sprint_status48(s + col, status, 0);
4522 } 5213 }
4523 /* By now, "[JOBID]* [maybe PID] STATUS" is printed */ 5214 /* By now, "[JOBID]* [maybe PID] STATUS" is printed */
@@ -4536,14 +5227,18 @@ showjob(struct job *jp, int mode)
4536 s[0] = '\0'; 5227 s[0] = '\0';
4537 col = 33; 5228 col = 33;
4538 if (mode & SHOW_PIDS) 5229 if (mode & SHOW_PIDS)
4539 col = fmtstr(s, 48, "\n%*c%d ", indent_col, ' ', ps->ps_pid) - 1; 5230 col = fmtstr(s, 48, "\n%*c%"PID_FMT"d ", indent_col, ' ', ps->ps_pid) - 1;
4540 start: 5231 start:
5232#if ENABLE_PLATFORM_POSIX || JOBS_WIN32
4541 fprintf(out, "%s%*c%s%s", 5233 fprintf(out, "%s%*c%s%s",
4542 s, 5234 s,
4543 33 - col >= 0 ? 33 - col : 0, ' ', 5235 33 - col >= 0 ? 33 - col : 0, ' ',
4544 ps == jp->ps ? "" : "| ", 5236 ps == jp->ps ? "" : "| ",
4545 ps->ps_cmd 5237 ps->ps_cmd
4546 ); 5238 );
5239#else
5240 fprintf(out, "%s", s);
5241#endif
4547 } while (++ps != psend); 5242 } while (++ps != psend);
4548 newline_and_flush(out); 5243 newline_and_flush(out);
4549 5244
@@ -4628,7 +5323,7 @@ getstatus(struct job *job)
4628 { 5323 {
4629 /* XXX: limits number of signals */ 5324 /* XXX: limits number of signals */
4630 retval = WTERMSIG(status); 5325 retval = WTERMSIG(status);
4631#if JOBS 5326#if JOBS || ENABLE_PLATFORM_MINGW32
4632 if (retval == SIGINT) 5327 if (retval == SIGINT)
4633 job->sigint = 1; 5328 job->sigint = 1;
4634#endif 5329#endif
@@ -4800,7 +5495,7 @@ makejob(/*union node *node,*/ int nprocs)
4800 break; 5495 break;
4801 if (jp->state != JOBDONE || !jp->waited) 5496 if (jp->state != JOBDONE || !jp->waited)
4802 continue; 5497 continue;
4803#if JOBS 5498#if JOBS || JOBS_WIN32
4804 if (doing_jobctl) 5499 if (doing_jobctl)
4805 continue; 5500 continue;
4806#endif 5501#endif
@@ -4826,7 +5521,7 @@ makejob(/*union node *node,*/ int nprocs)
4826 return jp; 5521 return jp;
4827} 5522}
4828 5523
4829#if JOBS 5524#if JOBS || JOBS_WIN32
4830/* 5525/*
4831 * Return a string identifying a command (to be printed by the 5526 * Return a string identifying a command (to be printed by the
4832 * jobs command). 5527 * jobs command).
@@ -5168,6 +5863,7 @@ clear_traps(void)
5168 INT_ON; 5863 INT_ON;
5169} 5864}
5170 5865
5866#if !ENABLE_PLATFORM_MINGW32
5171/* Lives far away from here, needed for forkchild */ 5867/* Lives far away from here, needed for forkchild */
5172static void closescript(void); 5868static void closescript(void);
5173 5869
@@ -5294,14 +5990,22 @@ forkchild(struct job *jp, union node *n, int mode)
5294 for (jp = curjob; jp; jp = jp->prev_job) 5990 for (jp = curjob; jp; jp = jp->prev_job)
5295 freejob(jp); 5991 freejob(jp);
5296} 5992}
5993#endif
5297 5994
5298/* Called after fork(), in parent */ 5995/* Called after fork(), in parent */
5299#if !JOBS 5996#if !JOBS && !JOBS_WIN32
5300#define forkparent(jp, n, mode, pid) forkparent(jp, mode, pid) 5997#define forkparent(jp, n, mode, pid) forkparent(jp, mode, pid)
5301#endif 5998#endif
5302static void 5999static void
6000#if !ENABLE_PLATFORM_MINGW32
5303forkparent(struct job *jp, union node *n, int mode, pid_t pid) 6001forkparent(struct job *jp, union node *n, int mode, pid_t pid)
6002#else
6003forkparent(struct job *jp, union node *n, int mode, HANDLE proc)
6004#endif
5304{ 6005{
6006#if ENABLE_PLATFORM_MINGW32
6007 pid_t pid = GetProcessId(proc);
6008#endif
5305 TRACE(("In parent shell: child = %d\n", pid)); 6009 TRACE(("In parent shell: child = %d\n", pid));
5306 if (!jp) /* jp is NULL when called by openhere() for heredoc support */ 6010 if (!jp) /* jp is NULL when called by openhere() for heredoc support */
5307 return; 6011 return;
@@ -5320,19 +6024,29 @@ forkparent(struct job *jp, union node *n, int mode, pid_t pid)
5320 if (mode == FORK_BG) { 6024 if (mode == FORK_BG) {
5321 backgndpid = pid; /* set $! */ 6025 backgndpid = pid; /* set $! */
5322 set_curjob(jp, CUR_RUNNING); 6026 set_curjob(jp, CUR_RUNNING);
6027#if ENABLE_PLATFORM_MINGW32
6028 if (iflag && jp && jp->nprocs == 0)
6029 fprintf(stderr, "[%d] %"PID_FMT"d\n", jobno(jp), pid);
6030#endif
5323 } 6031 }
5324 if (jp) { 6032 if (jp) {
5325 struct procstat *ps = &jp->ps[jp->nprocs++]; 6033 struct procstat *ps = &jp->ps[jp->nprocs++];
5326 ps->ps_pid = pid; 6034 ps->ps_pid = pid;
5327 ps->ps_status = -1; 6035 ps->ps_status = -1;
6036#if ENABLE_PLATFORM_POSIX || JOBS_WIN32
5328 ps->ps_cmd = nullstr; 6037 ps->ps_cmd = nullstr;
5329#if JOBS 6038#endif
6039#if ENABLE_PLATFORM_MINGW32
6040 ps->ps_proc = proc;
6041#endif
6042#if JOBS || JOBS_WIN32
5330 if (doing_jobctl && n) 6043 if (doing_jobctl && n)
5331 ps->ps_cmd = commandtext(n); 6044 ps->ps_cmd = commandtext(n);
5332#endif 6045#endif
5333 } 6046 }
5334} 6047}
5335 6048
6049#if !ENABLE_PLATFORM_MINGW32
5336/* jp and n are NULL when called by openhere() for heredoc support */ 6050/* jp and n are NULL when called by openhere() for heredoc support */
5337static int 6051static int
5338forkshell(struct job *jp, union node *n, int mode) 6052forkshell(struct job *jp, union node *n, int mode)
@@ -5355,6 +6069,7 @@ forkshell(struct job *jp, union node *n, int mode)
5355 } 6069 }
5356 return pid; 6070 return pid;
5357} 6071}
6072#endif
5358 6073
5359/* 6074/*
5360 * Wait for job to finish. 6075 * Wait for job to finish.
@@ -5418,6 +6133,10 @@ waitforjob(struct job *jp)
5418 return exitstatus; 6133 return exitstatus;
5419 6134
5420 st = getstatus(jp); 6135 st = getstatus(jp);
6136#if ENABLE_PLATFORM_MINGW32
6137 if (!jp->sigint && iflag && rootshell)
6138 pending_int = 0;
6139#endif
5421#if JOBS 6140#if JOBS
5422 if (jp->jobctl) { 6141 if (jp->jobctl) {
5423 xtcsetpgrp(ttyfd, rootpid); 6142 xtcsetpgrp(ttyfd, rootpid);
@@ -5443,6 +6162,7 @@ waitforjob(struct job *jp)
5443/* 6162/*
5444 * return 1 if there are stopped jobs, otherwise 0 6163 * return 1 if there are stopped jobs, otherwise 0
5445 */ 6164 */
6165#if !ENABLE_PLATFORM_MINGW32
5446static int 6166static int
5447stoppedjobs(void) 6167stoppedjobs(void)
5448{ 6168{
@@ -5461,6 +6181,17 @@ stoppedjobs(void)
5461 out: 6181 out:
5462 return retval; 6182 return retval;
5463} 6183}
6184#else
6185static int
6186stoppedjobs(void)
6187{
6188 if (iflag && curjob) {
6189 out2str("You have background jobs.\n");
6190 return 1;
6191 }
6192 return 0;
6193}
6194#endif
5464 6195
5465 6196
5466/* 6197/*
@@ -5485,6 +6216,7 @@ openhere(union node *redir)
5485 char *p; 6216 char *p;
5486 int pip[2]; 6217 int pip[2];
5487 size_t len = 0; 6218 size_t len = 0;
6219 IF_PLATFORM_MINGW32(struct forkshell fs);
5488 6220
5489 if (pipe(pip) < 0) 6221 if (pipe(pip) < 0)
5490 ash_msg_and_raise_perror("can't create pipe"); 6222 ash_msg_and_raise_perror("can't create pipe");
@@ -5501,6 +6233,14 @@ openhere(union node *redir)
5501 goto out; 6233 goto out;
5502 } 6234 }
5503 6235
6236#if ENABLE_PLATFORM_MINGW32
6237 memset(&fs, 0, sizeof(fs));
6238 fs.fpid = FS_OPENHERE;
6239 fs.fd[0] = pip[0];
6240 fs.fd[1] = pip[1];
6241 fs.path = p;
6242 spawn_forkshell(&fs, NULL, NULL, FORK_NOJOB);
6243#else
5504 if (forkshell((struct job *)NULL, (union node *)NULL, FORK_NOJOB) == 0) { 6244 if (forkshell((struct job *)NULL, (union node *)NULL, FORK_NOJOB) == 0) {
5505 /* child */ 6245 /* child */
5506 close(pip[0]); 6246 close(pip[0]);
@@ -5512,6 +6252,7 @@ openhere(union node *redir)
5512 xwrite(pip[1], p, len); 6252 xwrite(pip[1], p, len);
5513 _exit_SUCCESS(); 6253 _exit_SUCCESS();
5514 } 6254 }
6255#endif
5515 out: 6256 out:
5516 close(pip[1]); 6257 close(pip[1]);
5517 return pip[0]; 6258 return pip[0];
@@ -5589,6 +6330,9 @@ openredirect(union node *redir)
5589 f = open(fname, O_WRONLY|O_CREAT|O_APPEND, 0666); 6330 f = open(fname, O_WRONLY|O_CREAT|O_APPEND, 0666);
5590 if (f < 0) 6331 if (f < 0)
5591 goto ecreate; 6332 goto ecreate;
6333#if ENABLE_PLATFORM_MINGW32
6334 lseek(f, 0, SEEK_END);
6335#endif
5592 break; 6336 break;
5593 } 6337 }
5594 6338
@@ -5799,6 +6543,12 @@ save_fd_on_redirect(int fd, int avoid_fd, struct redirtab *sq)
5799 if (fd == preverrout_fd) 6543 if (fd == preverrout_fd)
5800 preverrout_fd = new_fd; 6544 preverrout_fd = new_fd;
5801 6545
6546#if ENABLE_PLATFORM_MINGW32 && !defined(_UCRT)
6547 // Workaround for problems with stderr in MSVCRT
6548 if (fd == fileno(stderr))
6549 setvbuf(stderr, NULL, _IONBF, 0);
6550#endif
6551
5802 return 0; /* "we did not close fd" */ 6552 return 0; /* "we did not close fd" */
5803} 6553}
5804 6554
@@ -6152,6 +6902,9 @@ ifsbreakup(char *string, struct arglist *arglist)
6152 const char *ifs, *realifs; 6902 const char *ifs, *realifs;
6153 int ifsspc; 6903 int ifsspc;
6154 int nulonly; 6904 int nulonly;
6905#if ENABLE_PLATFORM_MINGW32
6906 int lshift = 0;
6907#endif
6155 6908
6156 start = string; 6909 start = string;
6157 if (ifslastp != NULL) { 6910 if (ifslastp != NULL) {
@@ -6162,7 +6915,33 @@ ifsbreakup(char *string, struct arglist *arglist)
6162 do { 6915 do {
6163 int afternul; 6916 int afternul;
6164 6917
6918#if ENABLE_PLATFORM_MINGW32
6919 /* Adjust region offsets for left-shifted string. */
6920 ifsp->begoff -= lshift;
6921 ifsp->endoff -= lshift;
6922#endif
6165 p = string + ifsp->begoff; 6923 p = string + ifsp->begoff;
6924#if ENABLE_PLATFORM_MINGW32
6925 if (ifsp->endoff > ifsp->begoff + 1) {
6926 /* Transform CRLF to LF. Skip regions having zero or
6927 * one characters: they can't contain CRLF. If the
6928 * region shrinks shift the rest of the string left. */
6929 int oldlen = ifsp->endoff - ifsp->begoff;
6930 int newlen = remove_cr(p, oldlen);
6931 int delta = oldlen - newlen;
6932
6933 if (delta > 0) {
6934 char *t = string + ifsp->endoff;
6935 char *s = string + ifsp->endoff - delta;
6936
6937 while (*t)
6938 *s++ = *t++;
6939 *s = '\0';
6940 lshift += delta;
6941 ifsp->endoff -= delta;
6942 }
6943 }
6944#endif
6166 afternul = nulonly; 6945 afternul = nulonly;
6167 nulonly = ifsp->nulonly; 6946 nulonly = ifsp->nulonly;
6168 ifs = nulonly ? nullstr : realifs; 6947 ifs = nulonly ? nullstr : realifs;
@@ -6607,6 +7386,7 @@ evalbackcmd(union node *n, struct backcmd *result
6607 const int ip = 0; 7386 const int ip = 0;
6608 const int ic = 1; 7387 const int ic = 1;
6609#endif 7388#endif
7389 IF_PLATFORM_MINGW32(struct forkshell fs);
6610 7390
6611 result->fd = -1; 7391 result->fd = -1;
6612 result->buf = NULL; 7392 result->buf = NULL;
@@ -6620,6 +7400,15 @@ evalbackcmd(union node *n, struct backcmd *result
6620 ash_msg_and_raise_perror("can't create pipe"); 7400 ash_msg_and_raise_perror("can't create pipe");
6621 /* process substitution uses NULL job, like openhere() */ 7401 /* process substitution uses NULL job, like openhere() */
6622 jp = (ctl == CTLBACKQ) ? makejob(/*n,*/ 1) : NULL; 7402 jp = (ctl == CTLBACKQ) ? makejob(/*n,*/ 1) : NULL;
7403#if ENABLE_PLATFORM_MINGW32
7404 memset(&fs, 0, sizeof(fs));
7405 fs.fpid = FS_EVALBACKCMD;
7406 fs.n = n;
7407 fs.fd[0] = pip[0];
7408 fs.fd[1] = pip[1];
7409 fs.fd[2] = ctl;
7410 spawn_forkshell(&fs, jp, n, FORK_NOJOB);
7411#else
6623 if (forkshell(jp, n, FORK_NOJOB) == 0) { 7412 if (forkshell(jp, n, FORK_NOJOB) == 0) {
6624 /* child */ 7413 /* child */
6625 FORCE_INT_ON; 7414 FORCE_INT_ON;
@@ -6643,6 +7432,7 @@ evalbackcmd(union node *n, struct backcmd *result
6643 evaltreenr(n, EV_EXIT); 7432 evaltreenr(n, EV_EXIT);
6644 /* NOTREACHED */ 7433 /* NOTREACHED */
6645 } 7434 }
7435#endif
6646 /* parent */ 7436 /* parent */
6647#if BASH_PROCESS_SUBST 7437#if BASH_PROCESS_SUBST
6648 if (ctl != CTLBACKQ) { 7438 if (ctl != CTLBACKQ) {
@@ -6721,8 +7511,14 @@ expbackq(union node *cmd, int flag IF_BASH_PROCESS_SUBST(, int ctl))
6721 7511
6722 /* Eat all trailing newlines */ 7512 /* Eat all trailing newlines */
6723 dest = expdest; 7513 dest = expdest;
6724 for (; dest > ((char *)stackblock() + startloc) && dest[-1] == '\n';) 7514 for (; dest > ((char *)stackblock() + startloc) && dest[-1] == '\n';) {
6725 STUNPUTC(dest); 7515 STUNPUTC(dest);
7516#if ENABLE_PLATFORM_MINGW32
7517 if (dest > ((char *)stackblock() + startloc) && dest[-1] == '\r') {
7518 STUNPUTC(dest);
7519 }
7520#endif
7521 }
6726 expdest = dest; 7522 expdest = dest;
6727 7523
6728 if (!(flag & EXP_QUOTED)) 7524 if (!(flag & EXP_QUOTED))
@@ -7869,6 +8665,26 @@ expandmeta(struct strlist *str /*, int flag*/)
7869#else 8665#else
7870/* ENABLE_ASH_INTERNAL_GLOB: Homegrown globbing code. (dash also has both, uses homegrown one.) */ 8666/* ENABLE_ASH_INTERNAL_GLOB: Homegrown globbing code. (dash also has both, uses homegrown one.) */
7871 8667
8668#if ENABLE_ASH_GLOB_OPTIONS
8669static int FAST_FUNC
8670ash_accept_glob(const char *name)
8671{
8672 struct stat st;
8673
8674 if (nohiddenglob || nohidsysglob) {
8675 if (!lstat(name, &st)) {
8676 if ((st.st_attr & FILE_ATTRIBUTE_HIDDEN)) {
8677 if (nohiddenglob ||
8678 (st.st_attr & FILE_ATTRIBUTE_SYSTEM)) {
8679 return FALSE;
8680 }
8681 }
8682 }
8683 }
8684 return TRUE;
8685}
8686#endif
8687
7872/* 8688/*
7873 * Do metacharacter (i.e. *, ?, [...]) expansion. 8689 * Do metacharacter (i.e. *, ?, [...]) expansion.
7874 */ 8690 */
@@ -7896,6 +8712,10 @@ expmeta(exp_t *exp, char *name, unsigned name_len, unsigned expdir_len)
7896 8712
7897 metaflag = 0; 8713 metaflag = 0;
7898 start = name; 8714 start = name;
8715#if ENABLE_PLATFORM_MINGW32
8716 if (expdir_len == 0 && has_dos_drive_prefix(start) && start[2] != '/')
8717 start += 2;
8718#endif
7899 for (p = name; esc = 0, *p; p += esc + 1) { 8719 for (p = name; esc = 0, *p; p += esc + 1) {
7900 if (*p == '*' || *p == '?') 8720 if (*p == '*' || *p == '?')
7901 metaflag = 1; 8721 metaflag = 1;
@@ -7970,8 +8790,16 @@ expmeta(exp_t *exp, char *name, unsigned name_len, unsigned expdir_len)
7970 while (!pending_int && (dp = readdir(dirp)) != NULL) { 8790 while (!pending_int && (dp = readdir(dirp)) != NULL) {
7971 if (dp->d_name[0] == '.' && !matchdot) 8791 if (dp->d_name[0] == '.' && !matchdot)
7972 continue; 8792 continue;
8793#if ENABLE_ASH_GLOB_OPTIONS
8794# undef pmatch
8795# define pmatch(a, b) !fnmatch((a), (b), nocaseglob ? FNM_CASEFOLD : 0)
8796#endif
7973 if (pmatch(start, dp->d_name)) { 8797 if (pmatch(start, dp->d_name)) {
7974 if (atend) { 8798 if (atend) {
8799#if ENABLE_ASH_GLOB_OPTIONS
8800 if (!ash_accept_glob(dp->d_name))
8801 continue;
8802#endif
7975 strcpy(enddir, dp->d_name); 8803 strcpy(enddir, dp->d_name);
7976 addfname(expdir); 8804 addfname(expdir);
7977 } else { 8805 } else {
@@ -7999,6 +8827,10 @@ expmeta(exp_t *exp, char *name, unsigned name_len, unsigned expdir_len)
7999 endname[-esc - 1] = esc ? '\\' : '/'; 8827 endname[-esc - 1] = esc ? '\\' : '/';
8000#undef expdir 8828#undef expdir
8001#undef expdir_max 8829#undef expdir_max
8830#if ENABLE_ASH_GLOB_OPTIONS
8831# undef pmatch
8832# define pmatch(a, b) !fnmatch((a), (b), 0)
8833#endif
8002} 8834}
8003 8835
8004static struct strlist * 8836static struct strlist *
@@ -8271,14 +9103,40 @@ static int builtinloc = -1; /* index in path of %builtin, or -1 */
8271 9103
8272 9104
8273static void 9105static void
9106#if ENABLE_PLATFORM_MINGW32
9107tryexec(IF_FEATURE_SH_STANDALONE(int applet_no, const char *path, int noexec,)
9108 const char *cmd, char **argv, char **envp)
9109#else
8274tryexec(IF_FEATURE_SH_STANDALONE(int applet_no,) const char *cmd, char **argv, char **envp) 9110tryexec(IF_FEATURE_SH_STANDALONE(int applet_no,) const char *cmd, char **argv, char **envp)
9111#endif
8275{ 9112{
9113#if ENABLE_PLATFORM_MINGW32 && ENABLE_FEATURE_SH_STANDALONE
9114 interp_t interp;
9115#endif
8276#if ENABLE_FEATURE_SH_STANDALONE 9116#if ENABLE_FEATURE_SH_STANDALONE
8277 if (applet_no >= 0) { 9117 if (applet_no >= 0) {
9118# if ENABLE_PLATFORM_MINGW32
9119 /* Treat all applets as NOEXEC, including the shell itself
9120 * if we were called from forkshell_shellexec(). */
9121 run_noexec:
9122 if (applet_main[applet_no] != ash_main || noexec) {
9123 /* mingw-w64's getopt() uses __argv[0] as the program name */
9124 __argv[0] = (char *)cmd;
9125 /* 'which' wants to know if it was invoked from a standalone
9126 * shell. 'Which' in argv[0] indicates this. */
9127 if (strcmp(argv[0], "which") == 0) {
9128 argv[0] = (char *)"Which";
9129 }
9130# else
8278 if (APPLET_IS_NOEXEC(applet_no)) { 9131 if (APPLET_IS_NOEXEC(applet_no)) {
9132# endif
9133#if !ENABLE_PLATFORM_MINGW32 || !defined(_UCRT)
9134 /* If building for UCRT move this up into shellexec() to
9135 * work around a bug. */
8279 clearenv(); 9136 clearenv();
8280 while (*envp) 9137 while (*envp)
8281 putenv(*envp++); 9138 putenv(*envp++);
9139#endif
8282 popredir(/*drop:*/ 1); 9140 popredir(/*drop:*/ 1);
8283 run_noexec_applet_and_exit(applet_no, cmd, argv); 9141 run_noexec_applet_and_exit(applet_no, cmd, argv);
8284 } 9142 }
@@ -8289,6 +9147,44 @@ tryexec(IF_FEATURE_SH_STANDALONE(int applet_no,) const char *cmd, char **argv, c
8289 } 9147 }
8290#endif 9148#endif
8291 9149
9150#if ENABLE_PLATFORM_MINGW32
9151 /* Workaround for libtool, which assumes the host is an MSYS2
9152 * environment and requires special-case escaping for cmd.exe.
9153 * https://github.com/skeeto/w64devkit/issues/50 */
9154 if (string_array_len(argv) >= 3 &&
9155 strcmp(argv[0], "cmd") == 0 &&
9156 strcmp(argv[1], "//c") == 0 &&
9157 strcmp(argv[2], "echo") == 0) {
9158 argv[1]++; /* drop extra slash */
9159 }
9160
9161 /* cmd was allocated on the stack with room for an extension */
9162 add_win32_extension((char *)cmd);
9163
9164# if ENABLE_FEATURE_SH_STANDALONE
9165 /* If the command is a script with an interpreter which is an
9166 * applet, we can run it as if it were a noexec applet. */
9167 if (parse_interpreter(cmd, &interp)) {
9168 applet_no = find_applet_by_name_for_sh(interp.name, path);
9169 if (applet_no >= 0) {
9170 argv[0] = (char *)cmd;
9171 /* evalcommand()/spawn_forkshell() add two elements before argv */
9172 if (interp.opts) {
9173 argv--;
9174 argv[0] = (char *)interp.opts;
9175 }
9176 argv--;
9177 cmd = argv[0] = (char *)interp.name;
9178 /* Identify the index of the script file in argv */
9179 set_interp(1 + (interp.opts != NULL));
9180 goto run_noexec;
9181 }
9182 }
9183# endif
9184
9185 execve(cmd, argv, envp);
9186 /* skip POSIX-mandated retry on ENOEXEC */
9187#else /* !ENABLE_PLATFORM_MINGW32 */
8292 repeat: 9188 repeat:
8293#ifdef SYSV 9189#ifdef SYSV
8294 do { 9190 do {
@@ -8324,15 +9220,23 @@ tryexec(IF_FEATURE_SH_STANDALONE(int applet_no,) const char *cmd, char **argv, c
8324 argv[0] = (char*) "ash"; 9220 argv[0] = (char*) "ash";
8325 goto repeat; 9221 goto repeat;
8326 } 9222 }
9223#endif /* !ENABLE_PLATFORM_MINGW32 */
8327} 9224}
8328 9225
9226#if !ENABLE_PLATFORM_MINGW32 || !ENABLE_FEATURE_SH_STANDALONE
9227# define shellexec(prg, a, pth, i, n) shellexec(prg, a, pth, i)
9228#endif
9229
8329/* 9230/*
8330 * Exec a program. Never returns. If you change this routine, you may 9231 * Exec a program. Never returns. If you change this routine, you may
8331 * have to change the find_command routine as well. 9232 * have to change the find_command routine as well.
8332 * argv[-1] must exist and be writable! See tryexec() for why. 9233 * argv[-1] must exist and be writable! See tryexec() for why.
8333 */ 9234 */
8334static void shellexec(char *prog, char **argv, const char *path, int idx) NORETURN; 9235static struct builtincmd *find_builtin(const char *name);
8335static void shellexec(char *prog, char **argv, const char *path, int idx) 9236static void shellexec(char *prog, char **argv, const char *path, int idx,
9237 int noexec) NORETURN;
9238static void shellexec(char *prog, char **argv, const char *path, int idx,
9239 int noexec)
8336{ 9240{
8337 char *cmdname; 9241 char *cmdname;
8338 int e; 9242 int e;
@@ -8341,12 +9245,30 @@ static void shellexec(char *prog, char **argv, const char *path, int idx)
8341 int applet_no = -1; /* used only by FEATURE_SH_STANDALONE */ 9245 int applet_no = -1; /* used only by FEATURE_SH_STANDALONE */
8342 9246
8343 envp = listvars(VEXPORT, VUNSET, /*strlist:*/ NULL, /*end:*/ NULL); 9247 envp = listvars(VEXPORT, VUNSET, /*strlist:*/ NULL, /*end:*/ NULL);
9248#if ENABLE_FEATURE_SH_STANDALONE && ENABLE_PLATFORM_MINGW32 && defined(_UCRT)
9249 /* Avoid UCRT bug by updating parent's environment and passing a
9250 * NULL environment pointer to execve(). */
9251 clearenv();
9252 while (*envp)
9253 putenv(*envp++);
9254 envp = NULL;
9255#endif
9256#if !ENABLE_PLATFORM_MINGW32
8344 if (strchr(prog, '/') != NULL 9257 if (strchr(prog, '/') != NULL
9258#else
9259 if (has_path(prog)
9260#endif
8345#if ENABLE_FEATURE_SH_STANDALONE 9261#if ENABLE_FEATURE_SH_STANDALONE
8346 || (applet_no = find_applet_by_name(prog)) >= 0 9262 || (applet_no = find_applet_by_name_for_sh(prog, path)) >= 0
8347#endif 9263#endif
8348 ) { 9264 ) {
9265#if ENABLE_PLATFORM_MINGW32
9266 char *progext = stack_add_ext_space(prog);
9267 tryexec(IF_FEATURE_SH_STANDALONE(applet_no, path, noexec,)
9268 progext, argv, envp);
9269#else
8349 tryexec(IF_FEATURE_SH_STANDALONE(applet_no,) prog, argv, envp); 9270 tryexec(IF_FEATURE_SH_STANDALONE(applet_no,) prog, argv, envp);
9271#endif
8350 if (applet_no >= 0) { 9272 if (applet_no >= 0) {
8351 /* We tried execing ourself, but it didn't work. 9273 /* We tried execing ourself, but it didn't work.
8352 * Maybe /proc/self/exe doesn't exist? 9274 * Maybe /proc/self/exe doesn't exist?
@@ -8355,13 +9277,33 @@ static void shellexec(char *prog, char **argv, const char *path, int idx)
8355 goto try_PATH; 9277 goto try_PATH;
8356 } 9278 }
8357 e = errno; 9279 e = errno;
9280#if ENABLE_PLATFORM_MINGW32
9281 if (unix_path(prog)) {
9282 const char *name = bb_basename(prog);
9283# if ENABLE_FEATURE_SH_STANDALONE
9284 if ((applet_no = find_applet_by_name_for_sh(name, path)) >= 0) {
9285 tryexec(applet_no, path, noexec, name, argv, envp);
9286 e = errno;
9287 }
9288# endif
9289 if (!find_builtin(name)) {
9290 argv[0] = (char *)name;
9291 goto try_PATH;
9292 }
9293 }
9294#endif
8358 } else { 9295 } else {
8359 try_PATH: 9296 try_PATH:
8360 e = ENOENT; 9297 e = ENOENT;
8361 while (padvance(&path, argv[0]) >= 0) { 9298 while (padvance(&path, argv[0]) >= 0) {
8362 cmdname = stackblock(); 9299 cmdname = stackblock();
8363 if (--idx < 0 && pathopt == NULL) { 9300 if (--idx < 0 && pathopt == NULL) {
9301#if ENABLE_PLATFORM_MINGW32
9302 tryexec(IF_FEATURE_SH_STANDALONE(-1, path, noexec,)
9303 cmdname, argv, envp);
9304#else
8364 tryexec(IF_FEATURE_SH_STANDALONE(-1,) cmdname, argv, envp); 9305 tryexec(IF_FEATURE_SH_STANDALONE(-1,) cmdname, argv, envp);
9306#endif
8365 if (errno != ENOENT && errno != ENOTDIR) 9307 if (errno != ENOENT && errno != ENOTDIR)
8366 e = errno; 9308 e = errno;
8367 } 9309 }
@@ -8400,6 +9342,9 @@ printentry(struct tblentry *cmdp)
8400 padvance(&path, cmdp->cmdname); 9342 padvance(&path, cmdp->cmdname);
8401 } while (--idx >= 0); 9343 } while (--idx >= 0);
8402 name = stackblock(); 9344 name = stackblock();
9345#if ENABLE_PLATFORM_MINGW32
9346 add_win32_extension(name);
9347#endif
8403 out1fmt("%s%s\n", name, (cmdp->rehash ? "*" : nullstr)); 9348 out1fmt("%s%s\n", name, (cmdp->rehash ? "*" : nullstr));
8404} 9349}
8405 9350
@@ -8600,7 +9545,7 @@ changepath(const char *newval)
8600 bltin = idx; 9545 bltin = idx;
8601 break; 9546 break;
8602 } 9547 }
8603 new = strchr(new, ':'); 9548 new = strchr(new, PATH_SEP);
8604 if (!new) 9549 if (!new)
8605 break; 9550 break;
8606 idx++; 9551 idx++;
@@ -8777,14 +9722,37 @@ describe_command(char *command, const char *path, int describe_command_verbose)
8777 case CMDNORMAL: { 9722 case CMDNORMAL: {
8778 int j = entry.u.index; 9723 int j = entry.u.index;
8779 char *p; 9724 char *p;
9725#if ENABLE_PLATFORM_MINGW32 && ENABLE_FEATURE_SH_STANDALONE
9726 if (j < -1) {
9727 p = (char *)bb_basename(command);
9728 if (describe_command_verbose) {
9729 out1fmt(" is a builtin applet");
9730 } else {
9731 out1str(applet_to_exe(p));
9732 }
9733 break;
9734 }
9735#endif
8780 if (j < 0) { 9736 if (j < 0) {
9737#if ENABLE_PLATFORM_MINGW32
9738 p = stack_add_ext_space(command);
9739#else
8781 p = command; 9740 p = command;
9741#endif
8782 } else { 9742 } else {
9743#if ENABLE_PLATFORM_MINGW32
9744 if (unix_path(command))
9745 command = (char *)bb_basename(command);
9746#endif
8783 do { 9747 do {
8784 padvance(&path, command); 9748 padvance(&path, command);
8785 } while (--j >= 0); 9749 } while (--j >= 0);
8786 p = stackblock(); 9750 p = stackblock();
8787 } 9751 }
9752#if ENABLE_PLATFORM_MINGW32
9753 add_win32_extension(p);
9754 bs_to_slash(p);
9755#endif
8788 if (describe_command_verbose) { 9756 if (describe_command_verbose) {
8789 out1fmt(" is %s", p); 9757 out1fmt(" is %s", p);
8790 } else { 9758 } else {
@@ -8940,6 +9908,15 @@ commandcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
8940/*static int funcstringsize; // size of strings in node */ 9908/*static int funcstringsize; // size of strings in node */
8941static void *funcblock; /* block to allocate function from */ 9909static void *funcblock; /* block to allocate function from */
8942static char *funcstring_end; /* end of block to allocate strings from */ 9910static char *funcstring_end; /* end of block to allocate strings from */
9911#if ENABLE_PLATFORM_MINGW32
9912static int fs_size;
9913static void *fs_start;
9914# if FORKSHELL_DEBUG
9915static void *fs_funcstring;
9916static const char **annot;
9917static char *annot_free;
9918# endif
9919#endif
8943 9920
8944static const uint8_t nodesize[N_NUMBER] ALIGN1 = { 9921static const uint8_t nodesize[N_NUMBER] ALIGN1 = {
8945 [NCMD ] = SHELL_ALIGN(sizeof(struct ncmd)), 9922 [NCMD ] = SHELL_ALIGN(sizeof(struct ncmd)),
@@ -9072,14 +10049,79 @@ calcsize(int funcblocksize, union node *n)
9072} 10049}
9073 10050
9074static char * 10051static char *
9075nodeckstrdup(char *s) 10052nodeckstrdup(const char *s)
9076{ 10053{
10054#if ENABLE_PLATFORM_MINGW32
10055 if(!s)
10056 return NULL;
10057#endif
9077 funcstring_end -= SHELL_ALIGN(strlen(s) + 1); 10058 funcstring_end -= SHELL_ALIGN(strlen(s) + 1);
9078 return strcpy(funcstring_end, s); 10059 return strcpy(funcstring_end, s);
9079} 10060}
9080 10061
9081static union node *copynode(union node *); 10062static union node *copynode(union node *);
9082 10063
10064#if ENABLE_PLATFORM_MINGW32
10065# if FORKSHELL_DEBUG
10066# define MARK_PTR(dst,note,flag) forkshell_mark_ptr((void *)&dst, note, flag)
10067# else
10068# define MARK_PTR(dst,note,flag) forkshell_mark_ptr((void *)&dst)
10069# endif
10070
10071#define NO_FREE 0
10072#define FREE 1
10073
10074#if FORKSHELL_DEBUG
10075static void forkshell_mark_ptr(void *dst, const char *note, int flag)
10076#else
10077static void forkshell_mark_ptr(void *dst)
10078#endif
10079{
10080 char *lrelocate = (char *)fs_start + fs_size;
10081 int index = ((char *)dst - (char *)fs_start)/sizeof(char *);
10082
10083 lrelocate[index/8] |= 1 << (index % 8);
10084
10085#if FORKSHELL_DEBUG
10086 if (dst < fs_start || dst >= fs_funcstring) {
10087 fprintf(stderr, "dst (%p) out of range (%p %p)\n",
10088 dst, fs_start, fs_funcstring);
10089 }
10090 if (annot) {
10091 if (annot[index]) {
10092 fprintf(stderr, "duplicate annotation: %s %s\n",
10093 annot[index], note);
10094 }
10095 annot[index] = note;
10096 annot_free[index] = flag;
10097 }
10098#endif
10099}
10100
10101# define SAVE_PTR(dst,note,flag) { \
10102 if (fs_size) { \
10103 MARK_PTR(dst,note,flag); \
10104 } \
10105}
10106# define SAVE_PTR2(dst1,note1,flag1,dst2,note2,flag2) { \
10107 if (fs_size) { \
10108 MARK_PTR(dst1,note1,flag1); \
10109 MARK_PTR(dst2,note2,flag2); \
10110 } \
10111}
10112# define SAVE_PTR3(dst1,note1,flag1,dst2,note2,flag2,dst3,note3,flag3) { \
10113 if (fs_size) { \
10114 MARK_PTR(dst1,note1,flag1); \
10115 MARK_PTR(dst2,note2,flag2); \
10116 MARK_PTR(dst3,note3,flag3); \
10117 } \
10118}
10119#else
10120# define SAVE_PTR(dst,note,flag)
10121# define SAVE_PTR2(dst1,note1,flag1,dst2,note2,flag2)
10122# define SAVE_PTR3(dst1,note1,flag1,dst2,note2,flag2,dst3,note3,flag3)
10123#endif
10124
9083static struct nodelist * 10125static struct nodelist *
9084copynodelist(struct nodelist *lp) 10126copynodelist(struct nodelist *lp)
9085{ 10127{
@@ -9091,6 +10133,8 @@ copynodelist(struct nodelist *lp)
9091 *lpp = funcblock; 10133 *lpp = funcblock;
9092 funcblock = (char *) funcblock + SHELL_ALIGN(sizeof(struct nodelist)); 10134 funcblock = (char *) funcblock + SHELL_ALIGN(sizeof(struct nodelist));
9093 (*lpp)->n = copynode(lp->n); 10135 (*lpp)->n = copynode(lp->n);
10136 SAVE_PTR2((*lpp)->n, "(*lpp)->next", NO_FREE,
10137 (*lpp)->next, "(*lpp)->next", NO_FREE);
9094 lp = lp->next; 10138 lp = lp->next;
9095 lpp = &(*lpp)->next; 10139 lpp = &(*lpp)->next;
9096 } 10140 }
@@ -9114,10 +10158,14 @@ copynode(union node *n)
9114 new->ncmd.args = copynode(n->ncmd.args); 10158 new->ncmd.args = copynode(n->ncmd.args);
9115 new->ncmd.assign = copynode(n->ncmd.assign); 10159 new->ncmd.assign = copynode(n->ncmd.assign);
9116 new->ncmd.linno = n->ncmd.linno; 10160 new->ncmd.linno = n->ncmd.linno;
10161 SAVE_PTR3(new->ncmd.redirect, "ncmd.redirect", NO_FREE,
10162 new->ncmd.args, "ncmd.args", NO_FREE,
10163 new->ncmd.assign, "ncmd.assign", NO_FREE);
9117 break; 10164 break;
9118 case NPIPE: 10165 case NPIPE:
9119 new->npipe.cmdlist = copynodelist(n->npipe.cmdlist); 10166 new->npipe.cmdlist = copynodelist(n->npipe.cmdlist);
9120 new->npipe.pipe_backgnd = n->npipe.pipe_backgnd; 10167 new->npipe.pipe_backgnd = n->npipe.pipe_backgnd;
10168 SAVE_PTR(new->npipe.cmdlist, "npipe.cmdlist", NO_FREE);
9121 break; 10169 break;
9122 case NREDIR: 10170 case NREDIR:
9123 case NBACKGND: 10171 case NBACKGND:
@@ -9125,6 +10173,8 @@ copynode(union node *n)
9125 new->nredir.redirect = copynode(n->nredir.redirect); 10173 new->nredir.redirect = copynode(n->nredir.redirect);
9126 new->nredir.n = copynode(n->nredir.n); 10174 new->nredir.n = copynode(n->nredir.n);
9127 new->nredir.linno = n->nredir.linno; 10175 new->nredir.linno = n->nredir.linno;
10176 SAVE_PTR2(new->nredir.redirect, "nredir.redirect", NO_FREE,
10177 new->nredir.n, "nredir.n", NO_FREE);
9128 break; 10178 break;
9129 case NAND: 10179 case NAND:
9130 case NOR: 10180 case NOR:
@@ -9133,37 +10183,58 @@ copynode(union node *n)
9133 case NUNTIL: 10183 case NUNTIL:
9134 new->nbinary.ch2 = copynode(n->nbinary.ch2); 10184 new->nbinary.ch2 = copynode(n->nbinary.ch2);
9135 new->nbinary.ch1 = copynode(n->nbinary.ch1); 10185 new->nbinary.ch1 = copynode(n->nbinary.ch1);
10186 SAVE_PTR2(new->nbinary.ch1, "nbinary.ch1", NO_FREE,
10187 new->nbinary.ch2, "nbinary.ch2", NO_FREE);
9136 break; 10188 break;
9137 case NIF: 10189 case NIF:
9138 new->nif.elsepart = copynode(n->nif.elsepart); 10190 new->nif.elsepart = copynode(n->nif.elsepart);
9139 new->nif.ifpart = copynode(n->nif.ifpart); 10191 new->nif.ifpart = copynode(n->nif.ifpart);
9140 new->nif.test = copynode(n->nif.test); 10192 new->nif.test = copynode(n->nif.test);
10193 SAVE_PTR3(new->nif.elsepart, "nif.elsepart", NO_FREE,
10194 new->nif.ifpart, "nif.ifpart", NO_FREE,
10195 new->nif.test, "nif.test", NO_FREE);
9141 break; 10196 break;
9142 case NFOR: 10197 case NFOR:
9143 new->nfor.var = nodeckstrdup(n->nfor.var); 10198 new->nfor.var = nodeckstrdup(n->nfor.var);
9144 new->nfor.body = copynode(n->nfor.body); 10199 new->nfor.body = copynode(n->nfor.body);
9145 new->nfor.args = copynode(n->nfor.args); 10200 new->nfor.args = copynode(n->nfor.args);
9146 new->nfor.linno = n->nfor.linno; 10201 new->nfor.linno = n->nfor.linno;
10202 SAVE_PTR3(new->nfor.var,
10203 xasprintf("nfor.var '%s'", n->nfor.var ?: "NULL"), FREE,
10204 new->nfor.body, "nfor.body", NO_FREE,
10205 new->nfor.args, "nfor.args", NO_FREE);
9147 break; 10206 break;
9148 case NCASE: 10207 case NCASE:
9149 new->ncase.cases = copynode(n->ncase.cases); 10208 new->ncase.cases = copynode(n->ncase.cases);
9150 new->ncase.expr = copynode(n->ncase.expr); 10209 new->ncase.expr = copynode(n->ncase.expr);
9151 new->ncase.linno = n->ncase.linno; 10210 new->ncase.linno = n->ncase.linno;
10211 SAVE_PTR2(new->ncase.cases, "ncase.cases", NO_FREE,
10212 new->ncase.expr, "ncase.expr", NO_FREE);
9152 break; 10213 break;
9153 case NCLIST: 10214 case NCLIST:
9154 new->nclist.body = copynode(n->nclist.body); 10215 new->nclist.body = copynode(n->nclist.body);
9155 new->nclist.pattern = copynode(n->nclist.pattern); 10216 new->nclist.pattern = copynode(n->nclist.pattern);
9156 new->nclist.next = copynode(n->nclist.next); 10217 new->nclist.next = copynode(n->nclist.next);
10218 SAVE_PTR3(new->nclist.body, "nclist.body", NO_FREE,
10219 new->nclist.pattern, "nclist.pattern", NO_FREE,
10220 new->nclist.next, "nclist.next", NO_FREE);
9157 break; 10221 break;
9158 case NDEFUN: 10222 case NDEFUN:
9159 new->ndefun.body = copynode(n->ndefun.body); 10223 new->ndefun.body = copynode(n->ndefun.body);
9160 new->ndefun.text = nodeckstrdup(n->ndefun.text); 10224 new->ndefun.text = nodeckstrdup(n->ndefun.text);
9161 new->ndefun.linno = n->ndefun.linno; 10225 new->ndefun.linno = n->ndefun.linno;
10226 SAVE_PTR2(new->ndefun.body, "ndefun.body", NO_FREE,
10227 new->ndefun.text,
10228 xasprintf("ndefun.text '%s'", n->ndefun.text ?: "NULL"), FREE);
9162 break; 10229 break;
9163 case NARG: 10230 case NARG:
9164 new->narg.backquote = copynodelist(n->narg.backquote); 10231 new->narg.backquote = copynodelist(n->narg.backquote);
9165 new->narg.text = nodeckstrdup(n->narg.text); 10232 new->narg.text = nodeckstrdup(n->narg.text);
9166 new->narg.next = copynode(n->narg.next); 10233 new->narg.next = copynode(n->narg.next);
10234 SAVE_PTR3(new->narg.backquote, "narg.backquote", NO_FREE,
10235 new->narg.text,
10236 xasprintf("narg.text '%s'", n->narg.text ?: "NULL"), FREE,
10237 new->narg.next, "narg.next", NO_FREE);
9167 break; 10238 break;
9168 case NTO: 10239 case NTO:
9169#if BASH_REDIR_OUTPUT 10240#if BASH_REDIR_OUTPUT
@@ -9176,6 +10247,8 @@ copynode(union node *n)
9176 new->nfile.fname = copynode(n->nfile.fname); 10247 new->nfile.fname = copynode(n->nfile.fname);
9177 new->nfile.fd = n->nfile.fd; 10248 new->nfile.fd = n->nfile.fd;
9178 new->nfile.next = copynode(n->nfile.next); 10249 new->nfile.next = copynode(n->nfile.next);
10250 SAVE_PTR2(new->nfile.fname, "nfile.fname", NO_FREE,
10251 new->nfile.next, "nfile.next", NO_FREE);
9179 break; 10252 break;
9180 case NTOFD: 10253 case NTOFD:
9181 case NFROMFD: 10254 case NFROMFD:
@@ -9183,15 +10256,20 @@ copynode(union node *n)
9183 new->ndup.dupfd = n->ndup.dupfd; 10256 new->ndup.dupfd = n->ndup.dupfd;
9184 new->ndup.fd = n->ndup.fd; 10257 new->ndup.fd = n->ndup.fd;
9185 new->ndup.next = copynode(n->ndup.next); 10258 new->ndup.next = copynode(n->ndup.next);
10259 SAVE_PTR2(new->ndup.vname, "ndup.vname", NO_FREE,
10260 new->ndup.next, "ndup.next", NO_FREE);
9186 break; 10261 break;
9187 case NHERE: 10262 case NHERE:
9188 case NXHERE: 10263 case NXHERE:
9189 new->nhere.doc = copynode(n->nhere.doc); 10264 new->nhere.doc = copynode(n->nhere.doc);
9190 new->nhere.fd = n->nhere.fd; 10265 new->nhere.fd = n->nhere.fd;
9191 new->nhere.next = copynode(n->nhere.next); 10266 new->nhere.next = copynode(n->nhere.next);
10267 SAVE_PTR2(new->nhere.doc, "nhere.doc", NO_FREE,
10268 new->nhere.next, "nhere.next", NO_FREE);
9192 break; 10269 break;
9193 case NNOT: 10270 case NNOT:
9194 new->nnot.com = copynode(n->nnot.com); 10271 new->nnot.com = copynode(n->nnot.com);
10272 SAVE_PTR(new->nnot.com, "nnot.com", NO_FREE);
9195 break; 10273 break;
9196 }; 10274 };
9197 new->type = n->type; 10275 new->type = n->type;
@@ -9212,6 +10290,7 @@ copyfunc(union node *n)
9212 f = ckzalloc(blocksize /* + funcstringsize */); 10290 f = ckzalloc(blocksize /* + funcstringsize */);
9213 funcblock = (char *) f + offsetof(struct funcnode, n); 10291 funcblock = (char *) f + offsetof(struct funcnode, n);
9214 funcstring_end = (char *) f + blocksize; 10292 funcstring_end = (char *) f + blocksize;
10293 IF_PLATFORM_MINGW32(fs_size = 0);
9215 copynode(n); 10294 copynode(n);
9216 /* f->count = 0; - ckzalloc did it */ 10295 /* f->count = 0; - ckzalloc did it */
9217 return f; 10296 return f;
@@ -9239,12 +10318,15 @@ defun(union node *func)
9239#define SKIPFUNCDEF (1 << 3) 10318#define SKIPFUNCDEF (1 << 3)
9240static smallint evalskip; /* set to SKIPxxx if we are skipping commands */ 10319static smallint evalskip; /* set to SKIPxxx if we are skipping commands */
9241static int skipcount; /* number of levels to skip */ 10320static int skipcount; /* number of levels to skip */
10321#if ENABLE_PLATFORM_POSIX
9242static int loopnest; /* current loop nesting level */ 10322static int loopnest; /* current loop nesting level */
10323#endif
9243static int funcline; /* starting line number of current function, or 0 if not in a function */ 10324static int funcline; /* starting line number of current function, or 0 if not in a function */
9244 10325
9245/* Forward decl way out to parsing code - dotrap needs it */ 10326/* Forward decl way out to parsing code - dotrap needs it */
9246static int evalstring(char *s, int flags); 10327static int evalstring(char *s, int flags);
9247 10328
10329#if !ENABLE_PLATFORM_MINGW32
9248/* Called to execute a trap. 10330/* Called to execute a trap.
9249 * Single callsite - at the end of evaltree(). 10331 * Single callsite - at the end of evaltree().
9250 * If we return non-zero, evaltree raises EXEXIT exception. 10332 * If we return non-zero, evaltree raises EXEXIT exception.
@@ -9303,6 +10385,45 @@ dotrap(void)
9303 savestatus = last_status; 10385 savestatus = last_status;
9304 TRACE(("dotrap returns\n")); 10386 TRACE(("dotrap returns\n"));
9305} 10387}
10388#else
10389static void
10390dotrap(void)
10391{
10392 int status, last_status;
10393 char *p;
10394
10395 if (!pending_int)
10396 return;
10397
10398 status = savestatus;
10399 last_status = status;
10400 if (status < 0) {
10401 status = exitstatus;
10402 savestatus = status;
10403 }
10404 pending_int = 0;
10405 barrier();
10406
10407 TRACE(("dotrap entered\n"));
10408 if (evalskip) {
10409 pending_int = 1;
10410 return;
10411 }
10412
10413 p = trap[SIGINT];
10414 if (p) {
10415 TRACE(("sig %d is active, will run handler '%s'\n", SIGINT, p));
10416 trap_depth++;
10417 evalstring(p, 0);
10418 trap_depth--;
10419 if (evalskip != SKIPFUNC)
10420 exitstatus = status;
10421 }
10422
10423 savestatus = last_status;
10424 TRACE(("dotrap returns\n"));
10425}
10426#endif
9306 10427
9307/* forward declarations - evaluation is fairly recursive business... */ 10428/* forward declarations - evaluation is fairly recursive business... */
9308static int evalloop(union node *, int); 10429static int evalloop(union node *, int);
@@ -9588,19 +10709,36 @@ evalcase(union node *n, int flags)
9588static int 10709static int
9589evalsubshell(union node *n, int flags) 10710evalsubshell(union node *n, int flags)
9590{ 10711{
10712 IF_PLATFORM_MINGW32(struct forkshell fs;)
9591 struct job *jp; 10713 struct job *jp;
9592 int backgnd = (n->type == NBACKGND); /* FORK_BG(1) if yes, else FORK_FG(0) */ 10714 int backgnd = (n->type == NBACKGND); /* FORK_BG(1) if yes, else FORK_FG(0) */
9593 int status; 10715 int status;
9594 10716
9595 errlinno = lineno = n->nredir.linno; 10717 errlinno = lineno = n->nredir.linno;
9596 10718
10719#if ENABLE_PLATFORM_MINGW32
10720 if (!backgnd && (flags & EV_EXIT) && !may_have_traps) {
10721 expredir(n->nredir.redirect);
10722 redirect(n->nredir.redirect, 0);
10723 evaltreenr(n->nredir.n, flags);
10724 /* never returns */
10725 }
10726#else
9597 expredir(n->nredir.redirect); 10727 expredir(n->nredir.redirect);
9598 if (!backgnd && (flags & EV_EXIT) && !may_have_traps) 10728 if (!backgnd && (flags & EV_EXIT) && !may_have_traps)
9599 goto nofork; 10729 goto nofork;
10730#endif
9600 INT_OFF; 10731 INT_OFF;
9601 if (backgnd == FORK_FG) 10732 if (backgnd == FORK_FG)
9602 get_tty_state(); 10733 get_tty_state();
9603 jp = makejob(/*n,*/ 1); 10734 jp = makejob(/*n,*/ 1);
10735#if ENABLE_PLATFORM_MINGW32
10736 memset(&fs, 0, sizeof(fs));
10737 fs.fpid = FS_EVALSUBSHELL;
10738 fs.n = n;
10739 fs.flags = flags;
10740 spawn_forkshell(&fs, jp, n, backgnd);
10741#else
9604 if (forkshell(jp, n, backgnd) == 0) { 10742 if (forkshell(jp, n, backgnd) == 0) {
9605 /* child */ 10743 /* child */
9606 INT_ON; 10744 INT_ON;
@@ -9612,6 +10750,7 @@ evalsubshell(union node *n, int flags)
9612 evaltreenr(n->nredir.n, flags); 10750 evaltreenr(n->nredir.n, flags);
9613 /* never returns */ 10751 /* never returns */
9614 } 10752 }
10753#endif
9615 /* parent */ 10754 /* parent */
9616 status = 0; 10755 status = 0;
9617 if (backgnd == FORK_FG) 10756 if (backgnd == FORK_FG)
@@ -9692,6 +10831,7 @@ expredir(union node *n)
9692static int 10831static int
9693evalpipe(union node *n, int flags) 10832evalpipe(union node *n, int flags)
9694{ 10833{
10834 IF_PLATFORM_MINGW32(struct forkshell fs;)
9695 struct job *jp; 10835 struct job *jp;
9696 struct nodelist *lp; 10836 struct nodelist *lp;
9697 int pipelen; 10837 int pipelen;
@@ -9718,6 +10858,16 @@ evalpipe(union node *n, int flags)
9718 ash_msg_and_raise_perror("can't create pipe"); 10858 ash_msg_and_raise_perror("can't create pipe");
9719 } 10859 }
9720 } 10860 }
10861#if ENABLE_PLATFORM_MINGW32
10862 memset(&fs, 0, sizeof(fs));
10863 fs.fpid = FS_EVALPIPE;
10864 fs.flags = flags;
10865 fs.n = lp->n;
10866 fs.fd[0] = pip[0];
10867 fs.fd[1] = pip[1];
10868 fs.fd[2] = prevfd;
10869 spawn_forkshell(&fs, jp, lp->n, n->npipe.pipe_backgnd);
10870#else
9721 if (forkshell(jp, lp->n, n->npipe.pipe_backgnd) == 0) { 10871 if (forkshell(jp, lp->n, n->npipe.pipe_backgnd) == 0) {
9722 /* child */ 10872 /* child */
9723 INT_ON; 10873 INT_ON;
@@ -9735,6 +10885,7 @@ evalpipe(union node *n, int flags)
9735 evaltreenr(lp->n, flags); 10885 evaltreenr(lp->n, flags);
9736 /* never returns */ 10886 /* never returns */
9737 } 10887 }
10888#endif
9738 /* parent */ 10889 /* parent */
9739 if (prevfd >= 0) 10890 if (prevfd >= 0)
9740 close(prevfd); 10891 close(prevfd);
@@ -9792,6 +10943,9 @@ setinteractive(int on)
9792 line_input_state = new_line_input_t(FOR_SHELL | WITH_PATH_LOOKUP); 10943 line_input_state = new_line_input_t(FOR_SHELL | WITH_PATH_LOOKUP);
9793# if ENABLE_FEATURE_TAB_COMPLETION 10944# if ENABLE_FEATURE_TAB_COMPLETION
9794 line_input_state->get_exe_name = ash_command_name; 10945 line_input_state->get_exe_name = ash_command_name;
10946# if ENABLE_ASH_GLOB_OPTIONS
10947 line_input_state->sh_accept_glob = ash_accept_glob;
10948# endif
9795# endif 10949# endif
9796# if EDITING_HAS_sh_get_var 10950# if EDITING_HAS_sh_get_var
9797 line_input_state->sh_get_var = lookupvar; 10951 line_input_state->sh_get_var = lookupvar;
@@ -9819,6 +10973,12 @@ optschanged(void)
9819#else 10973#else
9820 viflag = 0; /* forcibly keep the option off */ 10974 viflag = 0; /* forcibly keep the option off */
9821#endif 10975#endif
10976#if ENABLE_ASH_NOCONSOLE
10977 hide_console(noconsole);
10978#endif
10979#if ENABLE_PLATFORM_MINGW32
10980 setwinxp(winxp);
10981#endif
9822} 10982}
9823 10983
9824struct localvar_list { 10984struct localvar_list {
@@ -9838,6 +10998,9 @@ poplocalvars(int keep)
9838 struct localvar_list *ll; 10998 struct localvar_list *ll;
9839 struct localvar *lvp, *next; 10999 struct localvar *lvp, *next;
9840 struct var *vp; 11000 struct var *vp;
11001#if ENABLE_PLATFORM_MINGW32
11002 int var_type;
11003#endif
9841 11004
9842 INT_OFF; 11005 INT_OFF;
9843 ll = localvar_stack; 11006 ll = localvar_stack;
@@ -9880,6 +11043,17 @@ poplocalvars(int keep)
9880 free((char*)vp->var_text); 11043 free((char*)vp->var_text);
9881 vp->flags = lvp->flags; 11044 vp->flags = lvp->flags;
9882 vp->var_text = lvp->text; 11045 vp->var_text = lvp->text;
11046#if ENABLE_PLATFORM_MINGW32
11047 var_type = is_bb_var(lvp->text);
11048 if (var_type == BB_VAR_ASSIGN && (lvp->flags & VEXPORT))
11049 putenv(lvp->text);
11050 else if (var_type) {
11051 char *var = xstrdup(lvp->text);
11052 *strchrnul(var, '=') = '\0';
11053 unsetenv(var);
11054 free(var);
11055 }
11056#endif
9883 } 11057 }
9884 free(lvp); 11058 free(lvp);
9885 } 11059 }
@@ -10102,7 +11276,7 @@ execcmd(int argc UNUSED_PARAM, char **argv)
10102 prog = argv[0]; 11276 prog = argv[0];
10103 if (optionarg) 11277 if (optionarg)
10104 argv[0] = optionarg; 11278 argv[0] = optionarg;
10105 shellexec(prog, argv, pathval(), 0); 11279 shellexec(prog, argv, pathval(), 0, FALSE);
10106 /* NOTREACHED */ 11280 /* NOTREACHED */
10107 } 11281 }
10108 return 0; 11282 return 0;
@@ -10155,6 +11329,9 @@ static int readcmd(int, char **) FAST_FUNC;
10155static int setcmd(int, char **) FAST_FUNC; 11329static int setcmd(int, char **) FAST_FUNC;
10156static int shiftcmd(int, char **) FAST_FUNC; 11330static int shiftcmd(int, char **) FAST_FUNC;
10157static int timescmd(int, char **) FAST_FUNC; 11331static int timescmd(int, char **) FAST_FUNC;
11332#if ENABLE_PLATFORM_MINGW32
11333static int titlecmd(int, char **) FAST_FUNC;
11334#endif
10158static int trapcmd(int, char **) FAST_FUNC; 11335static int trapcmd(int, char **) FAST_FUNC;
10159static int umaskcmd(int, char **) FAST_FUNC; 11336static int umaskcmd(int, char **) FAST_FUNC;
10160static int unsetcmd(int, char **) FAST_FUNC; 11337static int unsetcmd(int, char **) FAST_FUNC;
@@ -10227,7 +11404,7 @@ static const struct builtincmd builtintab[] = {
10227#if MAX_HISTORY 11404#if MAX_HISTORY
10228 { BUILTIN_NOSPEC "history" , historycmd }, 11405 { BUILTIN_NOSPEC "history" , historycmd },
10229#endif 11406#endif
10230#if JOBS 11407#if JOBS || JOBS_WIN32
10231 { BUILTIN_REGULAR "jobs" , jobscmd }, 11408 { BUILTIN_REGULAR "jobs" , jobscmd },
10232 { BUILTIN_REGULAR "kill" , killcmd }, 11409 { BUILTIN_REGULAR "kill" , killcmd },
10233#endif 11410#endif
@@ -10254,6 +11431,9 @@ static const struct builtincmd builtintab[] = {
10254 { BUILTIN_REGULAR "test" , testcmd }, 11431 { BUILTIN_REGULAR "test" , testcmd },
10255#endif 11432#endif
10256 { BUILTIN_SPEC_REG "times" , timescmd }, 11433 { BUILTIN_SPEC_REG "times" , timescmd },
11434#if ENABLE_PLATFORM_MINGW32
11435 { BUILTIN_REGULAR "title" , titlecmd },
11436#endif
10257 { BUILTIN_SPEC_REG "trap" , trapcmd }, 11437 { BUILTIN_SPEC_REG "trap" , trapcmd },
10258 { BUILTIN_REGULAR "true" , truecmd }, 11438 { BUILTIN_REGULAR "true" , truecmd },
10259 { BUILTIN_REGULAR "type" , typecmd }, 11439 { BUILTIN_REGULAR "type" , typecmd },
@@ -10272,7 +11452,7 @@ static const struct builtincmd builtintab[] = {
10272 /* [ */ 1 * ENABLE_ASH_TEST + \ 11452 /* [ */ 1 * ENABLE_ASH_TEST + \
10273 /* [[ */ 1 * BASH_TEST2 + \ 11453 /* [[ */ 1 * BASH_TEST2 + \
10274 /* alias */ 1 * ENABLE_ASH_ALIAS + \ 11454 /* alias */ 1 * ENABLE_ASH_ALIAS + \
10275 /* bg */ 1 * ENABLE_ASH_JOB_CONTROL + \ 11455 /* bg */ 1 * JOBS + \
10276 /* break cd cddir */ 3) 11456 /* break cd cddir */ 3)
10277#define EVALCMD (COMMANDCMD + \ 11457#define EVALCMD (COMMANDCMD + \
10278 /* command */ 1 * ENABLE_ASH_CMDCMD + \ 11458 /* command */ 1 * ENABLE_ASH_CMDCMD + \
@@ -10353,6 +11533,7 @@ bltincmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
10353 * as POSIX mandates */ 11533 * as POSIX mandates */
10354 return back_exitstatus; 11534 return back_exitstatus;
10355} 11535}
11536
10356static int 11537static int
10357evalcommand(union node *cmd, int flags) 11538evalcommand(union node *cmd, int flags)
10358{ 11539{
@@ -10452,9 +11633,19 @@ evalcommand(union node *cmd, int flags)
10452 11633
10453 localvar_stop = pushlocalvars(vlocal); 11634 localvar_stop = pushlocalvars(vlocal);
10454 11635
11636#if ENABLE_PLATFORM_MINGW32
11637# if ENABLE_FEATURE_SH_STANDALONE
11638 /* Reserve two extra spots at the front for shellexec. */
11639 nargv = stalloc(sizeof(char *) * (argc + 3));
11640 argv = nargv = nargv + 2;
11641# else
11642 argv = nargv = stalloc(sizeof(char *) * (argc + 1));
11643# endif
11644#else
10455 /* Reserve one extra spot at the front for shellexec. */ 11645 /* Reserve one extra spot at the front for shellexec. */
10456 nargv = stalloc(sizeof(char *) * (argc + 2)); 11646 nargv = stalloc(sizeof(char *) * (argc + 2));
10457 argv = ++nargv; 11647 argv = ++nargv;
11648#endif
10458 for (sp = arglist.list; sp; sp = sp->next) { 11649 for (sp = arglist.list; sp; sp = sp->next) {
10459 TRACE(("evalcommand arg: %s\n", sp->text)); 11650 TRACE(("evalcommand arg: %s\n", sp->text));
10460 *nargv++ = sp->text; 11651 *nargv++ = sp->text;
@@ -10563,9 +11754,11 @@ evalcommand(union node *cmd, int flags)
10563 11754
10564 default: { 11755 default: {
10565 11756
11757//TODO: find a better solution for Windows on ARM than ignoring NOFORK
10566#if ENABLE_FEATURE_SH_STANDALONE \ 11758#if ENABLE_FEATURE_SH_STANDALONE \
10567 && ENABLE_FEATURE_SH_NOFORK \ 11759 && ENABLE_FEATURE_SH_NOFORK \
10568 && NUM_APPLETS > 1 11760 && NUM_APPLETS > 1 \
11761 && !(defined(_ARM64_) && !defined(_UCRT) && ENABLE_PLATFORM_MINGW32)
10569/* (1) BUG: if variables are set, we need to fork, or save/restore them 11762/* (1) BUG: if variables are set, we need to fork, or save/restore them
10570 * around run_nofork_applet() call. 11763 * around run_nofork_applet() call.
10571 * (2) Should this check also be done in forkshell()? 11764 * (2) Should this check also be done in forkshell()?
@@ -10575,6 +11768,9 @@ evalcommand(union node *cmd, int flags)
10575 int applet_no = (- cmdentry.u.index - 2); 11768 int applet_no = (- cmdentry.u.index - 2);
10576 if (applet_no >= 0 && APPLET_IS_NOFORK(applet_no)) { 11769 if (applet_no >= 0 && APPLET_IS_NOFORK(applet_no)) {
10577 char **sv_environ; 11770 char **sv_environ;
11771#if ENABLE_PLATFORM_MINGW32
11772 char *sv_argv0;
11773#endif
10578 11774
10579 INT_OFF; 11775 INT_OFF;
10580 sv_environ = environ; 11776 sv_environ = environ;
@@ -10587,8 +11783,16 @@ evalcommand(union node *cmd, int flags)
10587 * and/or wait for user input ineligible for NOFORK: 11783 * and/or wait for user input ineligible for NOFORK:
10588 * for example, "yes" or "rm" (rm -i waits for input). 11784 * for example, "yes" or "rm" (rm -i waits for input).
10589 */ 11785 */
11786#if ENABLE_PLATFORM_MINGW32
11787 sv_argv0 = __argv[0];
11788 argv[0] = (char *)bb_basename(argv[0]);
11789 __argv[0] = argv[0];
11790#endif
10590 exitstatus = run_nofork_applet(applet_no, argv); 11791 exitstatus = run_nofork_applet(applet_no, argv);
10591 environ = sv_environ; 11792 environ = sv_environ;
11793#if ENABLE_PLATFORM_MINGW32
11794 __argv[0] = sv_argv0;
11795#endif
10592 /* 11796 /*
10593 * Try enabling NOFORK for "yes" applet. 11797 * Try enabling NOFORK for "yes" applet.
10594 * ^C _will_ stop it (write returns EINTR), 11798 * ^C _will_ stop it (write returns EINTR),
@@ -10606,6 +11810,22 @@ evalcommand(union node *cmd, int flags)
10606 * in a script or a subshell does not need forking, 11810 * in a script or a subshell does not need forking,
10607 * we can just exec it. 11811 * we can just exec it.
10608 */ 11812 */
11813#if ENABLE_PLATFORM_MINGW32
11814 if (!(flags & EV_EXIT) || may_have_traps IF_SUW32(|| delayexit)) {
11815 /* No, forking off a child is necessary */
11816 struct forkshell fs;
11817
11818 INT_OFF;
11819 memset(&fs, 0, sizeof(fs));
11820 fs.fpid = FS_SHELLEXEC;
11821 fs.argv = argv;
11822 fs.path = (char*)path;
11823 fs.fd[0] = cmdentry.u.index;
11824 jp = makejob(/*cmd,*/ 1);
11825 spawn_forkshell(&fs, jp, cmd, FORK_FG);
11826 break;
11827 }
11828#else
10609 if (!(flags & EV_EXIT) || may_have_traps) { 11829 if (!(flags & EV_EXIT) || may_have_traps) {
10610 /* No, forking off a child is necessary */ 11830 /* No, forking off a child is necessary */
10611 INT_OFF; 11831 INT_OFF;
@@ -10619,7 +11839,8 @@ evalcommand(union node *cmd, int flags)
10619 FORCE_INT_ON; 11839 FORCE_INT_ON;
10620 /* fall through to exec'ing external program */ 11840 /* fall through to exec'ing external program */
10621 } 11841 }
10622 shellexec(argv[0], argv, path, cmdentry.u.index); 11842#endif
11843 shellexec(argv[0], argv, path, cmdentry.u.index, FALSE);
10623 /* NOTREACHED */ 11844 /* NOTREACHED */
10624 } /* default */ 11845 } /* default */
10625 case CMDBUILTIN: 11846 case CMDBUILTIN:
@@ -10831,6 +12052,54 @@ static void popstring(void)
10831 INT_ON; 12052 INT_ON;
10832} 12053}
10833 12054
12055#if ENABLE_PLATFORM_MINGW32
12056/*
12057 * Wrapper around nonblock_immune_read() to remove CRs, but only from
12058 * CRLF pairs. The tricky part is handling a CR at the end of the buffer.
12059 */
12060static inline ssize_t
12061nonblock_immune_wrapper(struct parsefile *pf, char *buffer, size_t count)
12062{
12063 int nr, injected_cr;
12064
12065 // Inject unprocessed CR from previous read into the buffer.
12066 if (pf->cr)
12067 *buffer = '\r';
12068 retry:
12069 nr = nonblock_immune_read(pf->pf_fd, buffer + pf->cr, count - pf->cr);
12070 if (nr < 0)
12071 return nr;
12072
12073 injected_cr = pf->cr;
12074 nr += pf->cr;
12075 pf->cr = 0;
12076
12077 if (nr > 0) {
12078 nr = remove_cr(buffer, nr);
12079 // remove_cr() won't reduce size to zero, so [nr - 1] is OK.
12080 if (buffer[nr - 1] == '\r') {
12081 if (nr > 1) {
12082 // Ignore trailing CR for now: we'll deal with it later.
12083 pf->cr = 1;
12084 --nr;
12085 } else if (injected_cr) { // nr == 1
12086 // Buffer only contains an injected CR. This means the
12087 // read returned EOF. Return the buffer as-is. The
12088 // next call will detect EOF.
12089 } else {
12090 // Buffer only contains a CR from the most recent read.
12091 // Try another read, treating the CR as injected. We'll
12092 // either get more characters or EOF. Either way we
12093 // won't end up here again.
12094 pf->cr = 1;
12095 goto retry;
12096 }
12097 }
12098 }
12099 return nr;
12100}
12101#endif
12102
10834static int 12103static int
10835preadfd(void) 12104preadfd(void)
10836{ 12105{
@@ -10841,7 +12110,11 @@ preadfd(void)
10841#if ENABLE_FEATURE_EDITING 12110#if ENABLE_FEATURE_EDITING
10842 /* retry: */ 12111 /* retry: */
10843 if (!iflag || g_parsefile->pf_fd != STDIN_FILENO) 12112 if (!iflag || g_parsefile->pf_fd != STDIN_FILENO)
12113#if ENABLE_PLATFORM_MINGW32
12114 nr = nonblock_immune_wrapper(g_parsefile, buf, IBUFSIZ - 1);
12115#else
10844 nr = nonblock_immune_read(g_parsefile->pf_fd, buf, IBUFSIZ - 1); 12116 nr = nonblock_immune_read(g_parsefile->pf_fd, buf, IBUFSIZ - 1);
12117#endif
10845 else { 12118 else {
10846# if ENABLE_ASH_IDLE_TIMEOUT 12119# if ENABLE_ASH_IDLE_TIMEOUT
10847 int timeout = -1; 12120 int timeout = -1;
@@ -10880,12 +12153,21 @@ preadfd(void)
10880 INT_ON; /* here non-blocked SIGINT will longjmp */ 12153 INT_ON; /* here non-blocked SIGINT will longjmp */
10881 if (nr == 0) { 12154 if (nr == 0) {
10882 /* ^C pressed, "convert" to SIGINT */ 12155 /* ^C pressed, "convert" to SIGINT */
12156# if !ENABLE_PLATFORM_MINGW32
10883 write(STDOUT_FILENO, "^C\n", 3); 12157 write(STDOUT_FILENO, "^C\n", 3);
10884 raise(SIGINT); /* here non-blocked SIGINT will longjmp */ 12158 raise(SIGINT); /* here non-blocked SIGINT will longjmp */
10885 /* raise(SIGINT) did not work! (e.g. if SIGINT 12159 /* raise(SIGINT) did not work! (e.g. if SIGINT
10886 * is SIG_IGNed on startup, it stays SIG_IGNed) 12160 * is SIG_IGNed on startup, it stays SIG_IGNed)
10887 */ 12161 */
12162# else
12163 raise_interrupt();
12164 write(STDOUT_FILENO, "^C\n", 3);
12165# endif
10888 if (trap[SIGINT]) { 12166 if (trap[SIGINT]) {
12167# if ENABLE_PLATFORM_MINGW32
12168 pending_int = 1;
12169 dotrap();
12170# endif
10889 empty_line_input: 12171 empty_line_input:
10890 buf[0] = '\n'; 12172 buf[0] = '\n';
10891 buf[1] = '\0'; 12173 buf[1] = '\0';
@@ -10914,7 +12196,11 @@ preadfd(void)
10914 } 12196 }
10915 } 12197 }
10916#else 12198#else
12199# if ENABLE_PLATFORM_MINGW32
12200 nr = nonblock_immune_wrapper(g_parsefile, buf, IBUFSIZ - 1);
12201# else
10917 nr = nonblock_immune_read(g_parsefile->pf_fd, buf, IBUFSIZ - 1); 12202 nr = nonblock_immune_read(g_parsefile->pf_fd, buf, IBUFSIZ - 1);
12203# endif
10918#endif 12204#endif
10919 12205
10920#if 0 /* disabled: nonblock_immune_read() handles this problem */ 12206#if 0 /* disabled: nonblock_immune_read() handles this problem */
@@ -11213,6 +12499,7 @@ popallfiles(void)
11213 unwindfiles(&basepf); 12499 unwindfiles(&basepf);
11214} 12500}
11215 12501
12502#if !ENABLE_PLATFORM_MINGW32
11216/* 12503/*
11217 * Close the file(s) that the shell is reading commands from. Called 12504 * Close the file(s) that the shell is reading commands from. Called
11218 * after a fork is done. 12505 * after a fork is done.
@@ -11226,6 +12513,7 @@ closescript(void)
11226 g_parsefile->pf_fd = 0; 12513 g_parsefile->pf_fd = 0;
11227 } 12514 }
11228} 12515}
12516#endif
11229 12517
11230/* 12518/*
11231 * Like setinputfile, but takes an open file descriptor. Call this with 12519 * Like setinputfile, but takes an open file descriptor. Call this with
@@ -11462,8 +12750,19 @@ options(int *login_sh)
11462 int val; 12750 int val;
11463 int c; 12751 int c;
11464 12752
11465 if (login_sh != NULL) /* if we came from startup code */ 12753#if ENABLE_ASH_NOCONSOLE
12754 noconsole = console_state();
12755#endif
12756 if (login_sh != NULL) { /* if we came from startup code */
11466 minusc = NULL; 12757 minusc = NULL;
12758#if ENABLE_PLATFORM_MINGW32
12759 dirarg = NULL;
12760 title = NULL;
12761# if ENABLE_SUW32
12762 delayexit = 0;
12763# endif
12764#endif
12765 }
11467 while ((p = *argptr) != NULL) { 12766 while ((p = *argptr) != NULL) {
11468 c = *p++; 12767 c = *p++;
11469 if (c != '-' && c != '+') 12768 if (c != '-' && c != '+')
@@ -11493,6 +12792,31 @@ options(int *login_sh)
11493 cflag = 1; 12792 cflag = 1;
11494 continue; 12793 continue;
11495 } 12794 }
12795#if ENABLE_PLATFORM_MINGW32
12796 /* Undocumented flags;
12797 * -d force current directory
12798 * -t title to display in console window
12799 * -N prompt user before exit
12800 * Must appear before -s or -c. */
12801 if (c == 'd' && val == 1) {
12802 if (*argptr == NULL)
12803 ash_msg_and_raise_error(bb_msg_requires_arg, "-d");
12804 dirarg = *argptr++;
12805 continue;
12806 }
12807 if (c == 't' && val == 1) {
12808 if (*argptr == NULL)
12809 ash_msg_and_raise_error(bb_msg_requires_arg, "-t");
12810 title = *argptr++;
12811 continue;
12812 }
12813# if ENABLE_SUW32
12814 if (c == 'N' && val == 1) {
12815 delayexit = 1;
12816 continue;
12817 }
12818# endif
12819#endif
11496 if (c == 's') { /* -s, +s */ 12820 if (c == 's') { /* -s, +s */
11497 sflag = 1; 12821 sflag = 1;
11498 continue; 12822 continue;
@@ -13528,6 +14852,9 @@ evalstring(char *s, int flags)
13528 int status; 14852 int status;
13529 14853
13530 s = sstrdup(s); 14854 s = sstrdup(s);
14855#if ENABLE_PLATFORM_MINGW32
14856 remove_cr(s, strlen(s)+1);
14857#endif
13531 setinputstring(s); 14858 setinputstring(s);
13532 setstackmark(&smark); 14859 setstackmark(&smark);
13533 14860
@@ -13615,7 +14942,7 @@ cmdloop(int top)
13615 int skip; 14942 int skip;
13616 14943
13617 setstackmark(&smark); 14944 setstackmark(&smark);
13618#if JOBS 14945#if JOBS || JOBS_WIN32
13619 if (doing_jobctl) 14946 if (doing_jobctl)
13620 showjobs(SHOW_CHANGED|SHOW_STDERR); 14947 showjobs(SHOW_CHANGED|SHOW_STDERR);
13621#endif 14948#endif
@@ -13623,6 +14950,9 @@ cmdloop(int top)
13623 if (iflag && top) { 14950 if (iflag && top) {
13624 inter++; 14951 inter++;
13625 chkmail(); 14952 chkmail();
14953#if ENABLE_PLATFORM_MINGW32
14954 terminal_mode(TRUE);
14955#endif
13626 } 14956 }
13627 n = parsecmd(inter); 14957 n = parsecmd(inter);
13628#if DEBUG 14958#if DEBUG
@@ -13646,8 +14976,10 @@ cmdloop(int top)
13646 } else { 14976 } else {
13647 int i; 14977 int i;
13648 14978
14979#if !ENABLE_PLATFORM_MINGW32
13649 /* job_warning can only be 2,1,0. Here 2->1, 1/0->0 */ 14980 /* job_warning can only be 2,1,0. Here 2->1, 1/0->0 */
13650 job_warning >>= 1; 14981 job_warning >>= 1;
14982#endif
13651 numeof = 0; 14983 numeof = 0;
13652 i = evaltree(n, 0); 14984 i = evaltree(n, 0);
13653 if (n) 14985 if (n)
@@ -13677,7 +15009,7 @@ find_dot_file(char *basename)
13677 int len; 15009 int len;
13678 15010
13679 /* don't try this for absolute or relative paths */ 15011 /* don't try this for absolute or relative paths */
13680 if (strchr(basename, '/')) 15012 if (strchr(basename, '/') IF_PLATFORM_MINGW32(|| strchr(basename, '\\')))
13681 return basename; 15013 return basename;
13682 15014
13683 path = pathval(); 15015 path = pathval();
@@ -13842,6 +15174,7 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path)
13842 struct builtincmd *bcmd; 15174 struct builtincmd *bcmd;
13843 int len; 15175 int len;
13844 15176
15177#if !ENABLE_PLATFORM_MINGW32
13845 /* If name contains a slash, don't use PATH or hash table */ 15178 /* If name contains a slash, don't use PATH or hash table */
13846 if (strchr(name, '/') != NULL) { 15179 if (strchr(name, '/') != NULL) {
13847 entry->u.index = -1; 15180 entry->u.index = -1;
@@ -13861,6 +15194,35 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path)
13861 entry->cmdtype = CMDNORMAL; 15194 entry->cmdtype = CMDNORMAL;
13862 return; 15195 return;
13863 } 15196 }
15197#else /* ENABLE_PLATFORM_MINGW32 */
15198 /* If name contains a slash or drive prefix, don't use PATH or hash table */
15199 if (has_path(name)) {
15200 entry->u.index = -1;
15201 entry->cmdtype = CMDNORMAL;
15202 fullname = stack_add_ext_space(name);
15203 if (add_win32_extension(fullname)) {
15204 return;
15205 } else if (unix_path(name)) {
15206 name = (char *)bb_basename(name);
15207 if (
15208# if ENABLE_FEATURE_SH_STANDALONE
15209 find_applet_by_name_for_sh(name, path) >= 0 ||
15210# endif
15211 !find_builtin(bb_basename(name))
15212 ) {
15213 act |= DO_NOFUNC;
15214 } else if (act & DO_ABS) {
15215 entry->cmdtype = CMDUNKNOWN;
15216 return;
15217 }
15218 } else if (act & DO_ABS) {
15219 entry->cmdtype = CMDUNKNOWN;
15220 return;
15221 } else {
15222 return;
15223 }
15224 }
15225#endif /* ENABLE_PLATFORM_MINGW32 */
13864 15226
13865/* #if ENABLE_FEATURE_SH_STANDALONE... moved after builtin check */ 15227/* #if ENABLE_FEATURE_SH_STANDALONE... moved after builtin check */
13866 15228
@@ -13915,7 +15277,7 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path)
13915 15277
13916#if ENABLE_FEATURE_SH_STANDALONE 15278#if ENABLE_FEATURE_SH_STANDALONE
13917 { 15279 {
13918 int applet_no = find_applet_by_name(name); 15280 int applet_no = find_applet_by_name_for_sh(name, path);
13919 if (applet_no >= 0) { 15281 if (applet_no >= 0) {
13920 entry->cmdtype = CMDNORMAL; 15282 entry->cmdtype = CMDNORMAL;
13921 entry->u.index = -2 - applet_no; 15283 entry->u.index = -2 - applet_no;
@@ -13954,12 +15316,15 @@ find_command(char *name, struct cmdentry *entry, int act, const char *path)
13954 } 15316 }
13955 } 15317 }
13956 /* if rehash, don't redo absolute path names */ 15318 /* if rehash, don't redo absolute path names */
13957 if (fullname[0] == '/' && idx <= prev) { 15319 if (!is_relative_path(fullname) && idx <= prev) {
13958 if (idx < prev) 15320 if (idx < prev)
13959 continue; 15321 continue;
13960 TRACE(("searchexec \"%s\": no change\n", name)); 15322 TRACE(("searchexec \"%s\": no change\n", name));
13961 goto success; 15323 goto success;
13962 } 15324 }
15325#if ENABLE_PLATFORM_MINGW32
15326 add_win32_extension(fullname);
15327#endif
13963 while (stat(fullname, &statb) < 0) { 15328 while (stat(fullname, &statb) < 0) {
13964#ifdef SYSV 15329#ifdef SYSV
13965 if (errno == EINTR) 15330 if (errno == EINTR)
@@ -14098,19 +15463,45 @@ trapcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
14098 if (LONE_DASH(action)) 15463 if (LONE_DASH(action))
14099 action = NULL; 15464 action = NULL;
14100 else { 15465 else {
15466#if !ENABLE_PLATFORM_MINGW32
14101 if (action[0]) /* not NULL and not "" and not "-" */ 15467 if (action[0]) /* not NULL and not "" and not "-" */
14102 may_have_traps = 1; 15468 may_have_traps = 1;
15469#endif
14103 action = ckstrdup(action); 15470 action = ckstrdup(action);
14104 } 15471 }
14105 } 15472 }
14106 free(trap[signo]); 15473 free(trap[signo]);
14107 trap[signo] = action; 15474 trap[signo] = action;
15475#if ENABLE_PLATFORM_MINGW32
15476 if (signo == SIGINT) {
15477 // trap '' INT disables Ctrl-C, anything else enables it
15478 if (action && action[0] == '\0') {
15479 SetConsoleCtrlHandler(NULL, TRUE);
15480# if ENABLE_FEATURE_EDITING
15481 if (line_input_state) {
15482 line_input_state->flags |= IGNORE_CTRL_C;
15483 }
15484# endif
15485 } else {
15486 SetConsoleCtrlHandler(NULL, FALSE);
15487# if ENABLE_FEATURE_EDITING
15488 if (line_input_state) {
15489 line_input_state->flags &= ~IGNORE_CTRL_C;
15490 }
15491# endif
15492 }
15493 }
15494#else
14108 if (signo != 0 && signo < NSIG) 15495 if (signo != 0 && signo < NSIG)
14109 setsignal(signo); 15496 setsignal(signo);
15497#endif
14110 INT_ON; 15498 INT_ON;
14111 next: 15499 next:
14112 ap++; 15500 ap++;
14113 } 15501 }
15502#if ENABLE_PLATFORM_MINGW32
15503 may_have_traps = trap[SIGINT] && trap[SIGINT][0] != '\0';
15504#endif
14114 return exitcode; 15505 return exitcode;
14115} 15506}
14116 15507
@@ -14139,10 +15530,12 @@ helpcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
14139 { 15530 {
14140 const char *a = applet_names; 15531 const char *a = applet_names;
14141 while (*a) { 15532 while (*a) {
14142 col += out1fmt("%c%s", ((col == 0) ? '\t' : ' '), a); 15533 if (prefer_applet(a, pathval())) {
14143 if (col > 60) { 15534 col += out1fmt("%c%s", ((col == 0) ? '\t' : ' '), a);
14144 out1fmt("\n"); 15535 if (col > 60) {
14145 col = 0; 15536 out1fmt("\n");
15537 col = 0;
15538 }
14146 } 15539 }
14147 while (*a++ != '\0') 15540 while (*a++ != '\0')
14148 continue; 15541 continue;
@@ -14204,7 +15597,24 @@ exportcmd(int argc UNUSED_PARAM, char **argv)
14204 } else { 15597 } else {
14205 vp = *findvar(name); 15598 vp = *findvar(name);
14206 if (vp) { 15599 if (vp) {
15600#if ENABLE_PLATFORM_MINGW32
15601 if (is_bb_var(name) == BB_VAR_EXACT) {
15602 if (flag_off == ~VEXPORT)
15603 unsetenv(name);
15604 else if (flag == VEXPORT && !(vp->flags & VUNSET))
15605 putenv(vp->var_text);
15606 }
15607#endif
14207 vp->flags = ((vp->flags | flag) & flag_off); 15608 vp->flags = ((vp->flags | flag) & flag_off);
15609#if ENABLE_PLATFORM_MINGW32
15610 /* Unexporting a variable imported from the
15611 * environment restores its original value and
15612 * removes the VIMPORT flag. */
15613 if ((vp->flags & VIMPORT) && (flag_off == ~VEXPORT)) {
15614 vp->flags &= ~VIMPORT;
15615 p = getenv(name);
15616 } else
15617#endif
14208 continue; 15618 continue;
14209 } 15619 }
14210 } 15620 }
@@ -14295,6 +15705,21 @@ timescmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
14295 return 0; 15705 return 0;
14296} 15706}
14297 15707
15708#if ENABLE_PLATFORM_MINGW32
15709static int FAST_FUNC
15710titlecmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
15711{
15712 if (*argptr == NULL) {
15713 char buffer[256];
15714 if (get_title(buffer, sizeof(buffer)))
15715 puts(buffer);
15716 } else {
15717 set_title(*argptr);
15718 }
15719 return 0;
15720}
15721#endif
15722
14298#if ENABLE_FEATURE_SH_MATH 15723#if ENABLE_FEATURE_SH_MATH
14299/* 15724/*
14300 * The let builtin. Partially stolen from GNU Bash, the Bourne Again SHell. 15725 * The let builtin. Partially stolen from GNU Bash, the Bourne Again SHell.
@@ -14395,6 +15820,27 @@ readcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
14395 goto again; 15820 goto again;
14396 } 15821 }
14397 15822
15823#if ENABLE_PLATFORM_MINGW32
15824 if ((uintptr_t)r == 2) {
15825 /* ^C pressed, propagate event */
15826 if (trap[SIGINT]) {
15827 write(STDOUT_FILENO, "^C", 2);
15828 pending_int = 1;
15829 dotrap();
15830 if (!(rootshell && iflag))
15831 return (uintptr_t)0;
15832 else
15833 goto again;
15834 } else if (iflag) {
15835 raise_interrupt();
15836 } else {
15837 GenerateConsoleCtrlEvent(CTRL_C_EVENT, 0);
15838 exitshell();
15839 }
15840 return (uintptr_t)r;
15841 }
15842#endif
15843
14398 if ((uintptr_t)r > 1) 15844 if ((uintptr_t)r > 1)
14399 ash_msg_and_raise_error(r); 15845 ash_msg_and_raise_error(r);
14400 15846
@@ -14455,6 +15901,9 @@ umaskcmd(int argc UNUSED_PARAM, char **argv UNUSED_PARAM)
14455 if (!isdigit(modestr[0])) 15901 if (!isdigit(modestr[0]))
14456 mask ^= 0777; 15902 mask ^= 0777;
14457 umask(mask); 15903 umask(mask);
15904#if ENABLE_PLATFORM_MINGW32
15905 setvareq(xasprintf("BB_UMASK=0%o", mask), VEXPORT|VNOSAVE);
15906#endif
14458 } 15907 }
14459 return 0; 15908 return 0;
14460} 15909}
@@ -14538,6 +15987,13 @@ exitshell(void)
14538 /*free(p); - we'll exit soon */ 15987 /*free(p); - we'll exit soon */
14539 } 15988 }
14540 out: 15989 out:
15990#if ENABLE_SUW32
15991 if (delayexit) {
15992#define EXIT_MSG "Press any key to exit..."
15993 console_write(EXIT_MSG, sizeof(EXIT_MSG) - 1);
15994 _getch();
15995 }
15996#endif
14541 exitreset(); 15997 exitreset();
14542 /* dash wraps setjobctl(0) in "if (setjmp(loc.loc) == 0) {...}". 15998 /* dash wraps setjobctl(0) in "if (setjmp(loc.loc) == 0) {...}".
14543 * our setjobctl(0) does not panic if tcsetpgrp fails inside it. 15999 * our setjobctl(0) does not panic if tcsetpgrp fails inside it.
@@ -14548,22 +16004,97 @@ exitshell(void)
14548 /* NOTREACHED */ 16004 /* NOTREACHED */
14549} 16005}
14550 16006
16007#if ENABLE_PLATFORM_MINGW32
16008/* We need to see if HOME is *really* unset */
16009# undef getenv
16010static void setvar_if_unset(const char *key, const char *value)
16011{
16012 if (!getenv(key) || getuid() == 0)
16013 setvar(key, value, VEXPORT);
16014}
16015#endif
16016
14551/* Don't inline: conserve stack of caller from having our locals too */ 16017/* Don't inline: conserve stack of caller from having our locals too */
14552static NOINLINE void 16018static NOINLINE void
14553init(void) 16019init(void)
14554{ 16020{
16021#if ENABLE_PLATFORM_MINGW32
16022 int import = 0;
16023#else
14555 /* we will never free this */ 16024 /* we will never free this */
14556 basepf.next_to_pgetc = basepf.buf = ckzalloc(IBUFSIZ); 16025 basepf.next_to_pgetc = basepf.buf = ckzalloc(IBUFSIZ);
14557 basepf.linno = 1; 16026 basepf.linno = 1;
14558 16027
14559 sigmode[SIGCHLD - 1] = S_DFL; /* ensure we install handler even if it is SIG_IGNed */ 16028 sigmode[SIGCHLD - 1] = S_DFL; /* ensure we install handler even if it is SIG_IGNed */
14560 setsignal(SIGCHLD); 16029 setsignal(SIGCHLD);
16030#endif
14561 16031
14562 { 16032 {
14563 char **envp; 16033 char **envp;
14564 const char *p; 16034 const char *p;
14565 16035
14566 initvar(); 16036 initvar();
16037
16038#if ENABLE_PLATFORM_MINGW32
16039 /*
16040 * case insensitive env names from Windows world
16041 *
16042 * Some standard env names such as PATH is named Path and so on
16043 * ash itself is case sensitive, so "Path" will confuse it, as
16044 * MSVC getenv() is case insensitive.
16045 *
16046 * We may end up having both Path and PATH. Then Path will be chosen
16047 * because it appears first.
16048 */
16049 if (windows_env()) {
16050 /*
16051 * If we get here it's because the environment suggests we
16052 * haven't been invoked from an earlier instance of BusyBox.
16053 */
16054 char *start, *end;
16055 struct passwd *pw;
16056
16057 /* mintty sets HOME: unset it */
16058 const char *tty = getenv("TERM_PROGRAM");
16059 if (tty && strcmp(tty, "mintty") == 0) {
16060 unsetenv("HOME");
16061 }
16062
16063 import = VIMPORT;
16064 for (envp = environ; envp && *envp; envp++) {
16065 if (!(end=strchr(*envp, '=')))
16066 continue;
16067
16068 /* check for invalid characters in name */
16069 start = (char *)endofname(*envp);
16070 if (*start != '=') {
16071 /* Make a copy of the original variable */
16072 setvareq(xstrdup(*envp), VEXPORT|VNOSAVE);
16073
16074 /* Replace invalid characters with underscores */
16075 for (; start < end; start++) {
16076 if (!isalnum(*start)) {
16077 *start = '_';
16078 }
16079 }
16080 }
16081
16082 /* make all variable names uppercase */
16083 for (start = *envp;start < end;start++)
16084 *start = toupper(*start);
16085 }
16086
16087 /* Initialise some variables normally set at login, but
16088 * only if someone hasn't already set them or we're root. */
16089 pw = getpwuid(getuid());
16090 if (pw) {
16091 setvar_if_unset("USER", pw->pw_name);
16092 setvar_if_unset("LOGNAME", pw->pw_name);
16093 setvar_if_unset("HOME", pw->pw_dir);
16094 }
16095 setvar_if_unset("SHELL", DEFAULT_SHELL);
16096 }
16097#endif
14567 for (envp = environ; envp && *envp; envp++) { 16098 for (envp = environ; envp && *envp; envp++) {
14568/* Used to have 16099/* Used to have
14569 * p = endofname(*envp); 16100 * p = endofname(*envp);
@@ -14577,7 +16108,11 @@ init(void)
14577 * os.execv("ash", [ 'ash', '-c', 'env | grep test-test' ]) # breaks this 16108 * os.execv("ash", [ 'ash', '-c', 'env | grep test-test' ]) # breaks this
14578 */ 16109 */
14579 if (strchr(*envp, '=')) { 16110 if (strchr(*envp, '=')) {
16111#if !ENABLE_PLATFORM_MINGW32
14580 setvareq(*envp, VEXPORT|VTEXTFIXED); 16112 setvareq(*envp, VEXPORT|VTEXTFIXED);
16113#else
16114 setvareq(*envp, VEXPORT|import);
16115#endif
14581 } 16116 }
14582 } 16117 }
14583 16118
@@ -14628,7 +16163,11 @@ procargs(char **argv)
14628 int login_sh; 16163 int login_sh;
14629 16164
14630 xargv = argv; 16165 xargv = argv;
16166#if ENABLE_PLATFORM_MINGW32
16167 login_sh = applet_name[0] == 'l';
16168#else
14631 login_sh = xargv[0] && xargv[0][0] == '-'; 16169 login_sh = xargv[0] && xargv[0][0] == '-';
16170#endif
14632#if NUM_SCRIPTS > 0 16171#if NUM_SCRIPTS > 0
14633 if (minusc) 16172 if (minusc)
14634 goto setarg0; 16173 goto setarg0;
@@ -14652,7 +16191,9 @@ procargs(char **argv)
14652 } 16191 }
14653 if (iflag == 2 /* no explicit -i given */ 16192 if (iflag == 2 /* no explicit -i given */
14654 && sflag == 1 /* -s given (or implied) */ 16193 && sflag == 1 /* -s given (or implied) */
16194#if !ENABLE_PLATFORM_MINGW32
14655 && !minusc /* bash compat: ash -sc 'echo $-' is not interactive (dash is) */ 16195 && !minusc /* bash compat: ash -sc 'echo $-' is not interactive (dash is) */
16196#endif
14656 && isatty(0) && isatty(1) /* we are on tty */ 16197 && isatty(0) && isatty(1) /* we are on tty */
14657 ) { 16198 ) {
14658 iflag = 1; 16199 iflag = 1;
@@ -14672,6 +16213,9 @@ procargs(char **argv)
14672 goto setarg0; 16213 goto setarg0;
14673 } else if (!sflag) { 16214 } else if (!sflag) {
14674 setinputfile(*xargv, 0); 16215 setinputfile(*xargv, 0);
16216#if ENABLE_PLATFORM_MINGW32
16217 bs_to_slash(*xargv);
16218#endif
14675 setarg0: 16219 setarg0:
14676 arg0 = *xargv++; 16220 arg0 = *xargv++;
14677 commandname = arg0; 16221 commandname = arg0;
@@ -14695,8 +16239,10 @@ procargs(char **argv)
14695 * NB: must do it before setting up signals (in optschanged()) 16239 * NB: must do it before setting up signals (in optschanged())
14696 * and reading .profile etc (after we return from here): 16240 * and reading .profile etc (after we return from here):
14697 */ 16241 */
16242#if !ENABLE_PLATFORM_MINGW32
14698 if (iflag) 16243 if (iflag)
14699 signal(SIGHUP, SIG_DFL); 16244 signal(SIGHUP, SIG_DFL);
16245#endif
14700 16246
14701 optschanged(); 16247 optschanged();
14702 16248
@@ -14741,9 +16287,25 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
14741 struct stackmark smark; 16287 struct stackmark smark;
14742 int login_sh; 16288 int login_sh;
14743 16289
16290#if ENABLE_PLATFORM_MINGW32
16291 INIT_G_memstack();
16292
16293 /* from init() */
16294 basepf.next_to_pgetc = basepf.buf = ckzalloc(IBUFSIZ);
16295 basepf.linno = 1;
16296
16297 if (argc == 3 && !strcmp(argv[1], "--fs")) {
16298 forkshell_init(argv[2]);
16299 /* only reached in case of error */
16300 bb_error_msg_and_die("forkshell failed");
16301 }
16302#endif
16303
14744 /* Initialize global data */ 16304 /* Initialize global data */
14745 INIT_G_misc(); 16305 INIT_G_misc();
16306#if !ENABLE_PLATFORM_MINGW32
14746 INIT_G_memstack(); 16307 INIT_G_memstack();
16308#endif
14747 INIT_G_var(); 16309 INIT_G_var();
14748#if ENABLE_ASH_ALIAS 16310#if ENABLE_ASH_ALIAS
14749 INIT_G_alias(); 16311 INIT_G_alias();
@@ -14789,6 +16351,10 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
14789 init(); 16351 init();
14790 setstackmark(&smark); 16352 setstackmark(&smark);
14791 16353
16354#if ENABLE_PLATFORM_MINGW32
16355 SetConsoleCtrlHandler(ctrl_handler, TRUE);
16356#endif
16357
14792#if NUM_SCRIPTS > 0 16358#if NUM_SCRIPTS > 0
14793 if (argc < 0) 16359 if (argc < 0)
14794 /* Non-NULL minusc tells procargs that an embedded script is being run */ 16360 /* Non-NULL minusc tells procargs that an embedded script is being run */
@@ -14800,11 +16366,45 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
14800 trace_puts_args(argv); 16366 trace_puts_args(argv);
14801#endif 16367#endif
14802 16368
16369#if ENABLE_PLATFORM_MINGW32
16370 if (!dirarg && !login_sh && iflag) {
16371 char *cwd = getcwd(NULL, 0);
16372 if (cwd) {
16373 chdir(cwd);
16374 setpwd(NULL, 0);
16375 free(cwd);
16376 }
16377 }
16378
16379 if (title)
16380 set_title(title);
16381#endif
16382
14803 if (login_sh) { 16383 if (login_sh) {
14804 const char *hp; 16384 const char *hp;
14805 16385
16386#if ENABLE_PLATFORM_MINGW32
16387 if (!dirarg) {
16388 hp = lookupvar("HOME");
16389 if (hp == NULL || *hp == '\0')
16390 hp = xgetpwuid(getuid())->pw_dir;
16391 chdir(hp);
16392 setpwd(NULL, 0);
16393 }
16394#endif
16395
14806 state = 1; 16396 state = 1;
16397#if ENABLE_PLATFORM_MINGW32
16398 hp = concat_path_file(get_system_drive(), "/etc/profile");
16399 read_profile(hp);
16400 free((void *)hp);
16401
16402 hp = exe_relative_path("/etc/profile");
16403 read_profile(hp);
16404 free((void *)hp);
16405#else
14807 read_profile("/etc/profile"); 16406 read_profile("/etc/profile");
16407#endif
14808 state1: 16408 state1:
14809 state = 2; 16409 state = 2;
14810 hp = lookupvar("HOME"); 16410 hp = lookupvar("HOME");
@@ -14813,10 +16413,18 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
14813 } 16413 }
14814 state2: 16414 state2:
14815 state = 3; 16415 state = 3;
16416#if ENABLE_PLATFORM_MINGW32
16417 if (dirarg) {
16418 chdir(dirarg);
16419 setpwd(NULL, 0);
16420 }
16421#endif
14816 if (iflag 16422 if (iflag
16423#if ENABLE_PLATFORM_POSIX
14817#ifndef linux 16424#ifndef linux
14818 && getuid() == geteuid() && getgid() == getegid() 16425 && getuid() == geteuid() && getgid() == getegid()
14819#endif 16426#endif
16427#endif
14820 ) { 16428 ) {
14821 const char *shinit = lookupvar("ENV"); 16429 const char *shinit = lookupvar("ENV");
14822 if (shinit != NULL && *shinit != '\0') 16430 if (shinit != NULL && *shinit != '\0')
@@ -14841,7 +16449,11 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
14841 // ash -sc 'echo $-' 16449 // ash -sc 'echo $-'
14842 // continue reading input from stdin after running 'echo'. 16450 // continue reading input from stdin after running 'echo'.
14843 // bash does not do this: it prints "hBcs" and exits. 16451 // bash does not do this: it prints "hBcs" and exits.
16452#if !ENABLE_PLATFORM_MINGW32
14844 evalstring(minusc, EV_EXIT); 16453 evalstring(minusc, EV_EXIT);
16454#else
16455 evalstring(minusc, sflag ? 0 : EV_EXIT);
16456#endif
14845 } 16457 }
14846 16458
14847 if (sflag || minusc == NULL) { 16459 if (sflag || minusc == NULL) {
@@ -14884,6 +16496,1101 @@ int ash_main(int argc UNUSED_PARAM, char **argv)
14884 /* NOTREACHED */ 16496 /* NOTREACHED */
14885} 16497}
14886 16498
16499#if ENABLE_PLATFORM_MINGW32
16500static void
16501forkshell_openhere(struct forkshell *fs)
16502{
16503 const char *p = fs->path;
16504 size_t len = strlen(p);
16505 int pip[2];
16506
16507 pip[0] = fs->fd[0];
16508 pip[1] = fs->fd[1];
16509
16510 TRACE(("ash: subshell: %s\n",__PRETTY_FUNCTION__));
16511
16512 close(pip[0]);
16513 ignoresig(SIGINT); //signal(SIGINT, SIG_IGN);
16514 ignoresig(SIGQUIT); //signal(SIGQUIT, SIG_IGN);
16515 ignoresig(SIGHUP); //signal(SIGHUP, SIG_IGN);
16516 ignoresig(SIGTSTP); //signal(SIGTSTP, SIG_IGN);
16517 signal(SIGPIPE, SIG_DFL);
16518 xwrite(pip[1], p, len);
16519 _exit_SUCCESS();
16520}
16521
16522static void
16523forkshell_evalbackcmd(struct forkshell *fs)
16524{
16525#if BASH_PROCESS_SUBST
16526 /* determine end of pipe used by parent (ip) and child (ic) */
16527 const int ctl = fs->fd[2];
16528 const int ip = (ctl == CTLTOPROC);
16529 const int ic = !(ctl == CTLTOPROC);
16530#else
16531 const int ip = 0;
16532 const int ic = 1;
16533#endif
16534 union node *n = fs->n;
16535 int pip[2];
16536
16537 pip[ip] = fs->fd[ip];
16538 pip[ic] = fs->fd[ic];
16539
16540 FORCE_INT_ON;
16541 close(pip[ip]);
16542 if (pip[ic] != ic) {
16543 /*close(ic);*/
16544 dup2_or_raise(pip[ic], ic);
16545 close(pip[ic]);
16546 }
16547 eflag = 0;
16548 ifsfree();
16549 evaltreenr(n, EV_EXIT);
16550 /* NOTREACHED */
16551}
16552
16553static void
16554forkshell_evalsubshell(struct forkshell *fs)
16555{
16556 union node *n = fs->n;
16557 int flags = fs->flags;
16558
16559 TRACE(("ash: subshell: %s\n",__PRETTY_FUNCTION__));
16560 INT_ON;
16561 flags |= EV_EXIT;
16562 if (fs->mode)
16563 flags &= ~EV_TESTED;
16564 expredir(n->nredir.redirect);
16565 redirect(n->nredir.redirect, 0);
16566 evaltreenr(n->nredir.n, flags);
16567 /* never returns */
16568}
16569
16570static void
16571forkshell_evalpipe(struct forkshell *fs)
16572{
16573 union node *n = fs->n;
16574 int flags = fs->flags;
16575 int prevfd = fs->fd[2];
16576 int pip[2] = {fs->fd[0], fs->fd[1]};
16577
16578 TRACE(("ash: subshell: %s\n",__PRETTY_FUNCTION__));
16579 INT_ON;
16580 if (pip[1] >= 0) {
16581 close(pip[0]);
16582 }
16583 if (prevfd > 0) {
16584 dup2(prevfd, 0);
16585 close(prevfd);
16586 }
16587 if (pip[1] > 1) {
16588 dup2(pip[1], 1);
16589 close(pip[1]);
16590 }
16591 evaltreenr(n, flags);
16592}
16593
16594static void
16595forkshell_shellexec(struct forkshell *fs)
16596{
16597 int idx = fs->fd[0];
16598 char **argv = fs->argv;
16599 char *path = fs->path;
16600
16601 FORCE_INT_ON;
16602 shellexec(argv[0], argv, path, idx, TRUE);
16603}
16604
16605static void
16606forkshell_child(struct forkshell *fs)
16607{
16608 switch ( fs->fpid ) {
16609 case FS_OPENHERE:
16610 forkshell_openhere(fs);
16611 break;
16612 case FS_EVALBACKCMD:
16613 forkshell_evalbackcmd(fs);
16614 break;
16615 case FS_EVALSUBSHELL:
16616 forkshell_evalsubshell(fs);
16617 break;
16618 case FS_EVALPIPE:
16619 forkshell_evalpipe(fs);
16620 break;
16621 case FS_SHELLEXEC:
16622 forkshell_shellexec(fs);
16623 break;
16624 }
16625}
16626
16627/*
16628 * Reinitialise the builtin environment variables in varinit. Their
16629 * current settings have been copied from the parent in vartab. Look
16630 * these up using the names from varinit_data, copy the details from
16631 * vartab to varinit and replace the old copy in vartab with the new
16632 * one in varinit.
16633 *
16634 * Also reinitialise the function pointers and line number variable.
16635 */
16636static void
16637reinitvar(void)
16638{
16639 int i;
16640 const char *name;
16641 struct var **old;
16642
16643 for (i=0; i<ARRAY_SIZE(varinit); ++i) {
16644 if (i == LINENO_INDEX)
16645 name = "LINENO=";
16646 else if (i == FUNCNAME_INDEX)
16647 name = "FUNCNAME=";
16648 else
16649 name = varinit_data[i].var_text;
16650 if ((old = findvar(name)) != NULL) {
16651 varinit[i] = **old;
16652 *old = varinit+i;
16653 }
16654 varinit[i].var_func = varinit_data[i].var_func;
16655 }
16656 vlineno.var_text = linenovar;
16657 vfuncname.var_text = funcnamevar;
16658}
16659
16660static void
16661spawn_forkshell(struct forkshell *fs, struct job *jp, union node *n, int mode)
16662{
16663 struct forkshell *new;
16664 char buf[32];
16665 const char *argv[] = { "sh", "--fs", NULL, NULL };
16666 intptr_t ret;
16667
16668 new = forkshell_prepare(fs);
16669 if (new == NULL)
16670 goto fail;
16671
16672 new->mode = mode;
16673 new->nprocs = jp == NULL ? 0 : jp->nprocs;
16674#if JOBS_WIN32
16675 new->jpnull = jp == NULL;
16676#endif
16677 sprintf(buf, "%p", new->hMapFile);
16678 argv[2] = buf;
16679 ret = spawnve(P_NOWAIT, bb_busybox_exec_path, (char *const *)argv, NULL);
16680 CloseHandle(new->hMapFile);
16681 UnmapViewOfFile(new);
16682 if (ret == -1) {
16683 fail:
16684 if (jp)
16685 freejob(jp);
16686 ash_msg_and_raise_error("unable to spawn shell");
16687 }
16688 forkparent(jp, n, mode, (HANDLE)ret);
16689}
16690
16691/*
16692 * forkshell_prepare() and friends
16693 *
16694 * The sequence is as follows:
16695 * - funcblocksize is initialized
16696 * - forkshell_size(fs) is called to calculate the exact memory needed
16697 * - a new struct is allocated
16698 * - funcblock, funcstring, relocate are initialized from the new block
16699 * - forkshell_copy(fs) is called to copy recursively everything over
16700 * it will record all relocations along the way
16701 *
16702 * When this memory is mapped elsewhere, pointer fixup will be needed
16703 */
16704
16705/* redefine without test that fs_size is nonzero */
16706#undef SAVE_PTR
16707#undef SAVE_PTR2
16708#undef SAVE_PTR3
16709#define SAVE_PTR(dst,note,flag) {MARK_PTR(dst,note,flag);}
16710
16711static int align_len(const char *s)
16712{
16713 return s ? SHELL_ALIGN(strlen(s)+1) : 0;
16714}
16715
16716struct datasize {
16717 int funcblocksize;
16718 int funcstringsize;
16719};
16720
16721#define SLIST_SIZE_BEGIN(name,type) \
16722static struct datasize \
16723name(struct datasize ds, type *p) \
16724{ \
16725 while (p) { \
16726 ds.funcblocksize += sizeof(type);
16727 /* do something here with p */
16728#define SLIST_SIZE_END() \
16729 p = p->next; \
16730 } \
16731 return ds; \
16732}
16733
16734#define SLIST_COPY_BEGIN(name,type) \
16735static type * \
16736name(type *vp) \
16737{ \
16738 type *start; \
16739 type **vpp; \
16740 vpp = &start; \
16741 while (vp) { \
16742 *vpp = funcblock; \
16743 funcblock = (char *) funcblock + sizeof(type);
16744 /* do something here with vpp and vp */
16745#define SLIST_COPY_END() \
16746 SAVE_PTR((*vpp)->next, "(*vpp)->next", NO_FREE); \
16747 vp = vp->next; \
16748 vpp = &(*vpp)->next; \
16749 } \
16750 *vpp = NULL; \
16751 return start; \
16752}
16753
16754/*
16755 * struct var
16756 */
16757SLIST_SIZE_BEGIN(var_size,struct var)
16758ds.funcstringsize += align_len(p->var_text);
16759SLIST_SIZE_END()
16760
16761SLIST_COPY_BEGIN(var_copy,struct var)
16762(*vpp)->var_text = nodeckstrdup(vp->var_text);
16763(*vpp)->flags = vp->flags;
16764(*vpp)->var_func = NULL;
16765SAVE_PTR((*vpp)->var_text, xasprintf("(*vpp)->var_text '%s'", vp->var_text ?: "NULL"), FREE);
16766SLIST_COPY_END()
16767
16768/*
16769 * struct tblentry
16770 */
16771static struct datasize
16772tblentry_size(struct datasize ds, struct tblentry *tep)
16773{
16774 while (tep) {
16775 ds.funcblocksize += sizeof(struct tblentry) + align_len(tep->cmdname);
16776 /* CMDBUILTIN, e->param.cmd needs no pointer relocation */
16777 if (tep->cmdtype == CMDFUNCTION) {
16778 ds.funcblocksize += offsetof(struct funcnode, n);
16779 ds.funcblocksize = calcsize(ds.funcblocksize, &tep->param.func->n);
16780 }
16781 tep = tep->next;
16782 }
16783 return ds;
16784}
16785
16786static struct tblentry *
16787tblentry_copy(struct tblentry *tep)
16788{
16789 struct tblentry *start;
16790 struct tblentry **newp;
16791 int size;
16792
16793 newp = &start;
16794 while (tep) {
16795 *newp = funcblock;
16796 size = sizeof(struct tblentry) + align_len(tep->cmdname);
16797
16798 funcblock = (char *) funcblock + size;
16799 memcpy(*newp, tep, sizeof(struct tblentry)+strlen(tep->cmdname));
16800 switch (tep->cmdtype) {
16801 case CMDBUILTIN:
16802 /* Save index of builtin, not pointer; fixed by forkshell_init() */
16803 (*newp)->param.index = tep->param.cmd - builtintab;
16804 break;
16805 case CMDFUNCTION:
16806 (*newp)->param.func = funcblock;
16807 funcblock = (char *) funcblock + offsetof(struct funcnode, n);
16808 copynode(&tep->param.func->n);
16809 SAVE_PTR((*newp)->param.func, "param.func", NO_FREE);
16810 break;
16811 default:
16812 break;
16813 }
16814 SAVE_PTR((*newp)->next, xasprintf("cmdname '%s'", tep->cmdname), FREE);
16815 tep = tep->next;
16816 newp = &(*newp)->next;
16817 }
16818 *newp = NULL;
16819 return start;
16820}
16821
16822static struct datasize
16823cmdtable_size(struct datasize ds)
16824{
16825 int i;
16826 ds.funcblocksize += sizeof(struct tblentry *)*CMDTABLESIZE;
16827 for (i = 0; i < CMDTABLESIZE; i++)
16828 ds = tblentry_size(ds, cmdtable[i]);
16829 return ds;
16830}
16831
16832static struct tblentry **
16833cmdtable_copy(void)
16834{
16835 struct tblentry **new = funcblock;
16836 int i;
16837
16838 funcblock = (char *) funcblock + sizeof(struct tblentry *)*CMDTABLESIZE;
16839 for (i = 0; i < CMDTABLESIZE; i++) {
16840 new[i] = tblentry_copy(cmdtable[i]);
16841 SAVE_PTR(new[i], xasprintf("cmdtable[%d]", i), FREE);
16842 }
16843 return new;
16844}
16845
16846#if ENABLE_ASH_ALIAS
16847/*
16848 * struct alias
16849 */
16850SLIST_SIZE_BEGIN(alias_size,struct alias)
16851ds.funcstringsize += align_len(p->name);
16852ds.funcstringsize += align_len(p->val);
16853SLIST_SIZE_END()
16854
16855SLIST_COPY_BEGIN(alias_copy,struct alias)
16856(*vpp)->name = nodeckstrdup(vp->name);
16857(*vpp)->val = nodeckstrdup(vp->val);
16858(*vpp)->flag = vp->flag;
16859SAVE_PTR((*vpp)->name, xasprintf("(*vpp)->name '%s'", vp->name ?: "NULL"), FREE);
16860SAVE_PTR((*vpp)->val, xasprintf("(*vpp)->val '%s'", vp->val ?: "NULL"), FREE);
16861SLIST_COPY_END()
16862
16863static struct datasize
16864atab_size(struct datasize ds)
16865{
16866 int i;
16867 ds.funcblocksize += sizeof(struct alias *)*ATABSIZE;
16868 for (i = 0; i < ATABSIZE; i++)
16869 ds = alias_size(ds, atab[i]);
16870 return ds;
16871}
16872
16873static struct alias **
16874atab_copy(void)
16875{
16876 struct alias **new = funcblock;
16877 int i;
16878
16879 funcblock = (char *) funcblock + sizeof(struct alias *)*ATABSIZE;
16880 for (i = 0; i < ATABSIZE; i++) {
16881 new[i] = alias_copy(atab[i]);
16882 SAVE_PTR(new[i], xasprintf("atab[%d]", i), FREE);
16883 }
16884 return new;
16885}
16886#endif
16887
16888/*
16889 * char **
16890 */
16891static struct datasize
16892argv_size(struct datasize ds, char **p)
16893{
16894 if (p) {
16895 while (*p) {
16896 ds.funcblocksize += sizeof(char *);
16897 ds.funcstringsize += align_len(*p);
16898 p++;
16899 }
16900 // Allow two extra elements for tryexec().
16901 ds.funcblocksize += 3 * sizeof(char *);
16902 }
16903 return ds;
16904}
16905
16906static char **
16907argv_copy(char **p)
16908{
16909 char **new, **start = funcblock;
16910#if FORKSHELL_DEBUG
16911 int i = 0;
16912#endif
16913
16914 if (p) {
16915 // Allow two extra elements for tryexec().
16916 funcblock = (char *) funcblock + 2 * sizeof(char *);
16917 while (*p) {
16918 new = funcblock;
16919 funcblock = (char *) funcblock + sizeof(char *);
16920 *new = nodeckstrdup(*p);
16921 SAVE_PTR(*new, xasprintf("argv[%d] '%s'", i++, *p), FREE);
16922 p++;
16923 }
16924 new = funcblock;
16925 funcblock = (char *) funcblock + sizeof(char *);
16926 *new = NULL;
16927 return start + 2;
16928 }
16929 return NULL;
16930}
16931
16932#if MAX_HISTORY
16933static struct datasize
16934history_size(struct datasize ds)
16935{
16936 int i;
16937 line_input_t *st = line_input_state;
16938
16939 ds.funcblocksize += sizeof(char *) * st->cnt_history;
16940 for (i = 0; i < st->cnt_history; i++) {
16941 ds.funcstringsize += align_len(st->history[i]);
16942 }
16943 return ds;
16944}
16945
16946static char **
16947history_copy(void)
16948{
16949 line_input_t *st = line_input_state;
16950 char **new = funcblock;
16951 int i;
16952
16953 funcblock = (char *)funcblock + sizeof(char *) * st->cnt_history;
16954 for (i = 0; i < st->cnt_history; i++) {
16955 new[i] = nodeckstrdup(st->history[i]);
16956 SAVE_PTR(new[i],
16957 xasprintf("history[%d] '%s'", i, st->history[i]), FREE);
16958 }
16959 return new;
16960}
16961#endif
16962
16963#if JOBS_WIN32
16964/*
16965 * struct procstat
16966 */
16967static struct datasize
16968procstat_size(struct datasize ds, int nj)
16969{
16970 struct job *jp = jobtab + nj;
16971
16972 if (jp->ps != &jp->ps0)
16973 ds.funcblocksize += sizeof(struct procstat) * jp->nprocs;
16974
16975 for (int i = 0; i < jp->nprocs; i++)
16976 ds.funcstringsize += align_len(jp->ps[i].ps_cmd);
16977
16978 return ds;
16979}
16980
16981static struct procstat *
16982procstat_copy(int nj)
16983{
16984 struct job *jp = jobtab + nj;
16985 struct procstat *new = funcblock;
16986
16987 funcblock = (char *)funcblock + sizeof(struct procstat) * jp->nprocs;
16988 memcpy(new, jp->ps, sizeof(struct procstat) * jp->nprocs);
16989
16990 for (int i = 0; i < jp->nprocs; i++) {
16991 new[i].ps_cmd = nodeckstrdup(jp->ps[i].ps_cmd);
16992 SAVE_PTR(new[i].ps_cmd,
16993 xasprintf("jobtab[%d].ps[%d].ps_cmd '%s'",
16994 nj, i, jp->ps[i].ps_cmd), FREE);
16995 }
16996 return new;
16997}
16998
16999/*
17000 * struct jobs
17001 */
17002static struct datasize
17003jobtab_size(struct datasize ds)
17004{
17005 ds.funcblocksize += sizeof(struct job) * njobs;
17006 for (int i = 0; i < njobs; i++) {
17007 if (jobtab[i].used)
17008 ds = procstat_size(ds, i);
17009 }
17010 return ds;
17011}
17012
17013static struct job *
17014jobtab_copy(void)
17015{
17016 struct job *new = funcblock;
17017 int i;
17018
17019 funcblock = (char *)funcblock + sizeof(struct job) * njobs;
17020 memcpy(new, jobtab, sizeof(struct job) * njobs);
17021
17022 for (i = 0; i < njobs; i++) {
17023 if (!jobtab[i].used)
17024 continue;
17025
17026 if (jobtab[i].ps == &jobtab[i].ps0) {
17027 new[i].ps0.ps_cmd = nodeckstrdup(jobtab[i].ps0.ps_cmd);
17028 SAVE_PTR(new[i].ps0.ps_cmd,
17029 xasprintf("jobtab[%d].ps0.ps_cmd '%s'",
17030 i, jobtab[i].ps0.ps_cmd), FREE);
17031 new[i].ps = &new[i].ps0;
17032 } else if (jobtab[i].nprocs) {
17033 new[i].ps = procstat_copy(i);
17034 } else {
17035 new[i].ps = NULL;
17036 }
17037 SAVE_PTR(new[i].ps, xasprintf("jobtab[%d].ps", i), FREE);
17038
17039 if (jobtab[i].prev_job) {
17040 new[i].prev_job = new + (jobtab[i].prev_job - jobtab);
17041 SAVE_PTR(new[i].prev_job,
17042 xasprintf("jobtab[%d].prev_job", i), FREE);
17043 }
17044 }
17045 return new;
17046}
17047#endif
17048
17049/*
17050 * struct redirtab
17051 */
17052static int
17053redirtab_size(int funcblocksize, struct redirtab *rdtp)
17054{
17055 while (rdtp) {
17056 funcblocksize += sizeof(*rdtp)+sizeof(rdtp->two_fd[0])*rdtp->pair_count;
17057 rdtp = rdtp->next;
17058 }
17059 return funcblocksize;
17060}
17061
17062static struct redirtab *
17063redirtab_copy(struct redirtab *rdtp)
17064{
17065 struct redirtab *start;
17066 struct redirtab **vpp;
17067
17068 vpp = &start;
17069 while (rdtp) {
17070 int size = sizeof(*rdtp)+sizeof(rdtp->two_fd[0])*rdtp->pair_count;
17071 *vpp = funcblock;
17072 funcblock = (char *) funcblock + size;
17073 memcpy(*vpp, rdtp, size);
17074 SAVE_PTR((*vpp)->next, "(*vpp)->next", NO_FREE);
17075 rdtp = rdtp->next;
17076 vpp = &(*vpp)->next;
17077 }
17078 *vpp = NULL;
17079 return start;
17080}
17081
17082static struct datasize
17083globals_var_size(struct datasize ds)
17084{
17085 int i;
17086
17087 ds.funcblocksize += sizeof(struct globals_var);
17088 ds.funcstringsize += align_len(funcname);
17089 ds = argv_size(ds, shellparam.p);
17090 ds.funcblocksize = redirtab_size(ds.funcblocksize, redirlist);
17091 for (i = 0; i < VTABSIZE; i++)
17092 ds = var_size(ds, vartab[i]);
17093 return ds;
17094}
17095
17096#undef funcname
17097#undef shellparam
17098#undef redirlist
17099#undef vartab
17100static struct globals_var *
17101globals_var_copy(void)
17102{
17103 int i;
17104 struct globals_var *gvp, *new;
17105
17106 gvp = ash_ptr_to_globals_var;
17107 new = funcblock;
17108 funcblock = (char *) funcblock + sizeof(struct globals_var);
17109 memcpy(new, gvp, sizeof(struct globals_var));
17110
17111 new->funcname = nodeckstrdup(gvp->funcname);
17112 SAVE_PTR(new->funcname, xasprintf("funcname '%s'", gvp->funcname ?: "NULL"), FREE);
17113
17114 /* shparam */
17115 new->shellparam.malloced = 0;
17116 new->shellparam.p = argv_copy(gvp->shellparam.p);
17117 SAVE_PTR(new->shellparam.p, "shellparam.p", NO_FREE);
17118
17119 new->redirlist = redirtab_copy(gvp->redirlist);
17120 SAVE_PTR(new->redirlist, "redirlist", NO_FREE);
17121
17122 for (i = 0; i < VTABSIZE; i++) {
17123 new->vartab[i] = var_copy(gvp->vartab[i]);
17124 SAVE_PTR(new->vartab[i], xasprintf("vartab[%d]", i), FREE);
17125 }
17126
17127 return new;
17128}
17129
17130static struct datasize
17131globals_misc_size(struct datasize ds)
17132{
17133 ds.funcblocksize += sizeof(struct globals_misc);
17134 ds.funcstringsize += align_len(minusc);
17135 if (curdir != nullstr)
17136 ds.funcstringsize += align_len(curdir);
17137 if (physdir != nullstr)
17138 ds.funcstringsize += align_len(physdir);
17139 ds.funcstringsize += align_len(arg0);
17140 ds.funcstringsize += align_len(commandname);
17141 for (int i = 0; i < ARRAY_SIZE(trap); i++)
17142 ds.funcstringsize += align_len(trap[i]);
17143 return ds;
17144}
17145
17146#undef minusc
17147#undef curdir
17148#undef physdir
17149#undef arg0
17150#undef commandname
17151#undef nullstr
17152#undef trap
17153static struct globals_misc *
17154globals_misc_copy(void)
17155{
17156 struct globals_misc *p = ash_ptr_to_globals_misc;
17157 struct globals_misc *new = funcblock;
17158
17159 funcblock = (char *) funcblock + sizeof(struct globals_misc);
17160 memcpy(new, p, sizeof(struct globals_misc));
17161
17162 new->minusc = nodeckstrdup(p->minusc);
17163 new->curdir = p->curdir != p->nullstr ? nodeckstrdup(p->curdir) : new->nullstr;
17164 new->physdir = p->physdir != p->nullstr ? nodeckstrdup(p->physdir) : new->nullstr;
17165 new->arg0 = nodeckstrdup(p->arg0);
17166 new->commandname = nodeckstrdup(p->commandname);
17167 SAVE_PTR(new->minusc, xasprintf("minusc '%s'", p->minusc ?: "NULL"), FREE);
17168 SAVE_PTR(new->curdir,
17169 xasprintf("curdir '%s'", new->curdir ?: "NULL"), FREE);
17170 SAVE_PTR(new->physdir,
17171 xasprintf("physdir '%s'", new->physdir ?: "NULL"), FREE);
17172 SAVE_PTR(new->arg0, xasprintf("arg0 '%s'", p->arg0 ?: "NULL"), FREE);
17173 SAVE_PTR(new->commandname,
17174 xasprintf("commandname '%s'", p->commandname ?: "NULL"), FREE);
17175 for (int i = 0; i < ARRAY_SIZE(p->trap); i++) {
17176 new->trap[i] = nodeckstrdup(p->trap[i]);
17177 SAVE_PTR(new->trap[i], xasprintf("trap[%d]", i), FREE);
17178 }
17179 return new;
17180}
17181
17182static struct datasize
17183forkshell_size(struct forkshell *fs)
17184{
17185 struct datasize ds = {0, 0};
17186
17187 ds.funcstringsize += align_len(fs->path);
17188 if (fs->fpid == FS_OPENHERE)
17189 return ds;
17190
17191 ds = globals_var_size(ds);
17192 ds = globals_misc_size(ds);
17193 ds = cmdtable_size(ds);
17194
17195 ds.funcblocksize = calcsize(ds.funcblocksize, fs->n);
17196 ds = argv_size(ds, fs->argv);
17197
17198 if ((ENABLE_ASH_ALIAS || MAX_HISTORY || JOBS_WIN32) &&
17199 fs->fpid != FS_SHELLEXEC) {
17200#if ENABLE_ASH_ALIAS
17201 ds = atab_size(ds);
17202#endif
17203#if MAX_HISTORY
17204 if (line_input_state)
17205 ds = history_size(ds);
17206#endif
17207#if JOBS_WIN32
17208 ds = jobtab_size(ds);
17209#endif
17210 }
17211 return ds;
17212}
17213
17214static void
17215forkshell_copy(struct forkshell *fs, struct forkshell *new)
17216{
17217 memcpy(new, fs, sizeof(struct forkshell)); /* non-pointer stuff */
17218
17219 new->path = nodeckstrdup(fs->path);
17220 SAVE_PTR(new->path, xasprintf("path '%s'", fs->path ?: "NULL"), FREE);
17221 if (fs->fpid == FS_OPENHERE)
17222 return;
17223
17224 new->gvp = globals_var_copy();
17225 new->gmp = globals_misc_copy();
17226 new->cmdtable = cmdtable_copy();
17227 SAVE_PTR(new->gvp, "gvp", NO_FREE);
17228 SAVE_PTR(new->gmp, "gmp", NO_FREE);
17229 SAVE_PTR(new->cmdtable, "cmdtable", NO_FREE);
17230
17231 new->n = copynode(fs->n);
17232 new->argv = argv_copy(fs->argv);
17233 SAVE_PTR(new->n, "n", NO_FREE);
17234 SAVE_PTR(new->argv, "argv", NO_FREE);
17235
17236 if ((ENABLE_ASH_ALIAS || MAX_HISTORY || JOBS_WIN32) &&
17237 fs->fpid != FS_SHELLEXEC) {
17238#if ENABLE_ASH_ALIAS
17239 new->atab = atab_copy();
17240 SAVE_PTR(new->atab, "atab", NO_FREE);
17241#endif
17242#if MAX_HISTORY
17243 if (line_input_state) {
17244 new->history = history_copy();
17245 SAVE_PTR(new->history, "history", NO_FREE);
17246 new->cnt_history = line_input_state->cnt_history;
17247 }
17248#endif
17249#if JOBS_WIN32
17250 if (njobs) {
17251 new->jobtab = jobtab_copy();
17252 SAVE_PTR(new->jobtab, "jobtab", NO_FREE);
17253 new->njobs = njobs;
17254 if (curjob) {
17255 new->curjob = new->jobtab + (curjob - jobtab);
17256 SAVE_PTR(new->curjob, "curjob", NO_FREE);
17257 }
17258 }
17259#endif
17260 }
17261}
17262
17263#if FORKSHELL_DEBUG
17264#define NUM_BLOCKS FUNCSTRING
17265enum {GVP, GMP, CMDTABLE, NODE, ARGV, ATAB, HISTORY, JOBTAB, FUNCSTRING};
17266
17267/* fp0 and notes can each be NULL */
17268static void
17269forkshell_print(FILE *fp0, struct forkshell *fs, const char **notes)
17270{
17271 FILE *fp;
17272 void *lfuncblock;
17273 char *lfuncstring;
17274 char *lrelocate;
17275 char *s;
17276 int count, i, total, bitmapsize;
17277 int size[NUM_BLOCKS];
17278 char *lptr[NUM_BLOCKS+1];
17279 const char *fsname[] = {
17280 "FS_OPENHERE",
17281 "FS_EVALBACKCMD",
17282 "FS_EVALSUBSHELL",
17283 "FS_EVALPIPE",
17284 "FS_SHELLEXEC"
17285 };
17286
17287 if (fp0 != NULL) {
17288 fp = fp0;
17289 }
17290 else {
17291 char name[64];
17292 static int num = 0;
17293
17294 sprintf(name, "fs_%d_%03d.out", getpid(), ++num % 100);
17295 if ((fp=fopen(name, "w")) == NULL)
17296 return;
17297 }
17298
17299 bitmapsize = (fs->relocatesize + 7)/8;
17300 total = sizeof(struct forkshell) + fs->funcblocksize +
17301 fs->funcstringsize + bitmapsize;
17302 fprintf(fp, "total size %6d = %d + %d + %d + %d = %d\n",
17303 fs->size + bitmapsize,
17304 (int)sizeof(struct forkshell), fs->funcblocksize,
17305 fs->funcstringsize, bitmapsize, total);
17306
17307 lfuncblock = (char *)(fs + 1);
17308 lfuncstring = (char *)lfuncblock + fs->funcblocksize;
17309 lrelocate = (char *)lfuncstring + fs->funcstringsize;
17310
17311 /* funcblocksize is zero for FS_OPENHERE */
17312 if (fs->funcblocksize != 0) {
17313 /* Depending on the configuration and the type of forkshell
17314 * some items may not be present. */
17315 lptr[FUNCSTRING] = lfuncstring;
17316#if JOBS_WIN32
17317 lptr[JOBTAB] = fs->jobtab ? (char *)fs->jobtab : lptr[FUNCSTRING];
17318#else
17319 lptr[JOBTAB] = lptr[FUNCSTRING];
17320#endif
17321#if MAX_HISTORY
17322 lptr[HISTORY] = fs->history ? (char *)fs->history : lptr[JOBTAB];
17323#else
17324 lptr[HISTORY] = lptr[JOBTAB];
17325#endif
17326 lptr[ATAB] = IF_ASH_ALIAS(fs->atab ? (char *)fs->atab :) lptr[HISTORY];
17327 lptr[ARGV] = fs->argv ? (char *)fs->argv : lptr[ATAB];
17328 lptr[NODE] = fs->n ? (char *)fs->n : lptr[ARGV];
17329 lptr[CMDTABLE] = (char *)fs->cmdtable;
17330 lptr[GMP] = (char *)fs->gmp;
17331 lptr[GVP] = (char *)fs->gvp;
17332
17333 fprintf(fp, "funcblocksize %6d = ", fs->funcblocksize);
17334 total = 0;
17335 for (i=0; i<NUM_BLOCKS; ++i) {
17336 size[i] = (int)(lptr[i+1] - lptr[i]);
17337 total += size[i];
17338 fprintf(fp, "%d %c ", size[i], i == NUM_BLOCKS - 1 ? '=' : '+');
17339 }
17340 fprintf(fp, "%d\n\n", total);
17341 }
17342 else {
17343 fprintf(fp, "\n");
17344 }
17345
17346 fprintf(fp, "%s\n\n", fsname[fs->fpid]);
17347 fprintf(fp, "--- relocate ---\n");
17348 count = 0;
17349 for (i = 0; i < fs->relocatesize; ++i) {
17350 if (lrelocate[i/8] & (1 << i % 8)) {
17351 char **ptr = (char **)((char *)fs + i * sizeof(char *));
17352 fprintf(fp, "%p %p %s\n", ptr, *ptr,
17353 notes && notes[i] ? notes[i] : "");
17354 ++count;
17355 }
17356 }
17357 fprintf(fp, "--- %d relocations ---\n\n", count);
17358
17359 fprintf(fp, "--- funcstring ---\n");
17360 count = 0;
17361 s = lfuncstring;
17362 while (s-lfuncstring < fs->funcstringsize) {
17363 if (!*s) {
17364 ++s;
17365 continue;
17366 }
17367 fprintf(fp, "%p '%s'\n", s, s);
17368 s += strlen(s)+1;
17369 ++count;
17370 }
17371 fprintf(fp, "--- %d strings ---\n", count);
17372
17373 if (fp0 == NULL)
17374 fclose(fp);
17375}
17376#endif
17377
17378static struct forkshell *
17379forkshell_prepare(struct forkshell *fs)
17380{
17381 struct forkshell *new;
17382 struct datasize ds;
17383 int size, relocatesize, bitmapsize;
17384 HANDLE h;
17385 SECURITY_ATTRIBUTES sa;
17386#if FORKSHELL_DEBUG
17387 char *relocate;
17388 char name[64];
17389 FILE *fp;
17390 static int num = 0;
17391#endif
17392
17393 /* calculate size of structure, funcblock and funcstring */
17394 ds = forkshell_size(fs);
17395 size = sizeof(struct forkshell) + ds.funcblocksize + ds.funcstringsize;
17396 relocatesize = (sizeof(struct forkshell) + ds.funcblocksize)/sizeof(char *);
17397 bitmapsize = (relocatesize + 7)/8;
17398
17399 /* Allocate shared memory region */
17400 memset(&sa, 0, sizeof(sa));
17401 sa.nLength = sizeof(sa);
17402 sa.lpSecurityDescriptor = NULL;
17403 sa.bInheritHandle = TRUE;
17404 h = CreateFileMapping(INVALID_HANDLE_VALUE, &sa, PAGE_READWRITE, 0,
17405 size+bitmapsize, NULL);
17406
17407 /* Initialise pointers */
17408 new = (struct forkshell *)MapViewOfFile(h, FILE_MAP_WRITE, 0,0, 0);
17409 if (new == NULL)
17410 return NULL;
17411 fs_size = size;
17412 fs_start = new;
17413 funcblock = (char *)(new + 1);
17414 funcstring_end = (char *)new + size;
17415#if FORKSHELL_DEBUG
17416 fs_funcstring = (char *)new + sizeof(struct forkshell) + ds.funcblocksize;
17417 relocate = (char *)new + size;
17418 annot = (const char **)xzalloc(sizeof(char *)*relocatesize);
17419 annot_free = xzalloc(relocatesize);
17420#endif
17421
17422 /* Now pack them all */
17423 forkshell_copy(fs, new);
17424
17425 /* Finish it up */
17426 new->size = size;
17427 new->relocatesize = relocatesize;
17428 new->old_base = (char *)new;
17429 new->hMapFile = h;
17430#if FORKSHELL_DEBUG
17431 sprintf(name, "fs_%d_%03d.out", getpid(), ++num % 100);
17432 if ((fp=fopen(name, "w")) != NULL) {
17433 int i;
17434
17435 new->funcblocksize = (char *)funcblock - (char *)(new + 1);
17436 new->funcstringsize = (char *)new + size - funcstring_end;
17437
17438 /* perform some sanity checks on pointers */
17439 fprintf(fp, "forkshell %p %6d\n", new, (int)sizeof(*new));
17440 fprintf(fp, "funcblock %p %6d\n", new+1, new->funcblocksize);
17441 fprintf(fp, "funcstring %p %6d\n", funcstring_end,
17442 new->funcstringsize);
17443 if ((char *)funcblock != funcstring_end)
17444 fprintf(fp, " funcstring != end funcblock + 1 %p\n", funcblock);
17445 fprintf(fp, "relocate %p %6d\n\n", relocate, bitmapsize);
17446
17447 forkshell_print(fp, new, annot);
17448
17449 for (i = 0; i < relocatesize; ++i) {
17450 if (annot_free[i]) {
17451 free((void *)annot[i]);
17452 }
17453 }
17454 free(annot);
17455 free(annot_free);
17456 annot = NULL;
17457 fclose(fp);
17458 }
17459#endif
17460 return new;
17461}
17462
17463#undef trap_ptr
17464static void
17465forkshell_init(const char *idstr)
17466{
17467 struct forkshell *fs;
17468 void *map_handle;
17469 HANDLE h;
17470 int i;
17471 char **ptr;
17472 char *lrelocate;
17473 struct jmploc jmploc;
17474
17475 if (sscanf(idstr, "%p", &map_handle) != 1)
17476 return;
17477
17478 h = (HANDLE)map_handle;
17479 fs = (struct forkshell *)MapViewOfFile(h, FILE_MAP_WRITE, 0,0, 0);
17480 if (!fs)
17481 return;
17482
17483 /* this memory can't be freed */
17484 sticky_mem_start = fs;
17485 sticky_mem_end = (char *) fs + fs->size;
17486
17487 /* pointer fixup */
17488 lrelocate = (char *)fs + fs->size;
17489 for (i = 0; i < fs->relocatesize; i++) {
17490 if (lrelocate[i/8] & (1 << i % 8)) {
17491 ptr = (char **)((char *)fs + i * sizeof(char *));
17492 if (*ptr)
17493 *ptr = (char *)fs + (*ptr - fs->old_base);
17494 }
17495 }
17496
17497 if (fs->fpid == FS_OPENHERE)
17498 goto end;
17499
17500 /* Now fix up stuff that can't be transferred */
17501 for (i = 0; i < CMDTABLESIZE; i++) {
17502 struct tblentry *e = fs->cmdtable[i];
17503 while (e) {
17504 if (e->cmdtype == CMDBUILTIN)
17505 e->param.cmd = builtintab + e->param.index;
17506 e = e->next;
17507 }
17508 }
17509 fs->gmp->trap_ptr = fs->gmp->trap;
17510
17511 /* Set global variables */
17512 ASSIGN_CONST_PTR(&ash_ptr_to_globals_var, fs->gvp);
17513 ASSIGN_CONST_PTR(&ash_ptr_to_globals_misc, fs->gmp);
17514 cmdtable = fs->cmdtable;
17515#if ENABLE_ASH_ALIAS
17516 atab = fs->atab; /* will be NULL for FS_SHELLEXEC */
17517#endif
17518#if MAX_HISTORY
17519 if (fs->cnt_history) {
17520 line_input_state = new_line_input_t(FOR_SHELL);
17521 line_input_state->cnt_history = fs->cnt_history;
17522 for (i = 0; i < line_input_state->cnt_history; i++)
17523 line_input_state->history[i] = fs->history[i];
17524 }
17525#endif
17526#if JOBS_WIN32
17527 jobtab = fs->jobtab;
17528 njobs = fs->njobs;
17529 curjob = fs->curjob;
17530#endif
17531
17532 CLEAR_RANDOM_T(&random_gen); /* or else $RANDOM repeats in child */
17533
17534 reinitvar();
17535
17536 if (setjmp(jmploc.loc)) {
17537 exitreset();
17538 exitshell();
17539 }
17540 exception_handler = &jmploc;
17541
17542 shlvl++;
17543 if (fs->mode == FORK_BG) {
17544 SetConsoleCtrlHandler(NULL, TRUE);
17545 if (fs->nprocs == 0) {
17546 close(0);
17547 if (open(bb_dev_null, O_RDONLY) != 0)
17548 ash_msg_and_raise_perror("can't open '%s'", bb_dev_null);
17549 }
17550 }
17551 else {
17552 SetConsoleCtrlHandler(ctrl_handler, TRUE);
17553 }
17554
17555 if (fs->n && fs->n->type == NCMD /* is it single cmd? */
17556 /* && n->ncmd.args->type == NARG - always true? */
17557 && fs->n->ncmd.args && strcmp(fs->n->ncmd.args->narg.text, "trap") == 0
17558 && fs->n->ncmd.args->narg.next == NULL /* "trap" with no arguments */
17559 /* && n->ncmd.args->narg.backquote == NULL - do we need to check this? */
17560 ) {
17561 TRACE(("Trap hack\n"));
17562 /* Save trap handler strings for trap builtin to print */
17563 fs->gmp->trap_ptr = xmemdup(fs->gmp->trap, sizeof(fs->gmp->trap));
17564 /* Fall through into clearing traps */
17565 }
17566 clear_traps();
17567#if JOBS_WIN32
17568 /* do job control only in root shell */
17569 doing_jobctl = 0;
17570
17571 if (fs->n && fs->n->type == NCMD && fs->n->ncmd.args &&
17572 strcmp(fs->n->ncmd.args->narg.text, "jobs") == 0) {
17573 TRACE(("Job hack\n"));
17574 if (!fs->jpnull)
17575 freejob(curjob);
17576 goto end;
17577 }
17578 for (struct job *jp = curjob; jp; jp = jp->prev_job)
17579 freejob(jp);
17580#endif
17581 end:
17582 forkshell_child(fs);
17583}
17584
17585#undef free
17586static void
17587sticky_free(void *base)
17588{
17589 if (base >= sticky_mem_start && base < sticky_mem_end)
17590 return;
17591 free(base);
17592}
17593#endif
14887 17594
14888/*- 17595/*-
14889 * Copyright (c) 1989, 1991, 1993, 1994 17596 * Copyright (c) 1989, 1991, 1993, 1994
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-08 23:07:13 +0000