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authorEric Andersen <andersen@codepoet.org>1999-11-19 05:42:32 +0000
committerEric Andersen <andersen@codepoet.org>1999-11-19 05:42:32 +0000
commite1850ddde4f3ff14f72d919531f1f254cd353a2c (patch)
tree11746a3d635b293c29287b1ae0c8e6bcbe88a07f /ls.c
parent6a76e652aab7d614c2b47b50318e0690c06779c4 (diff)
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Diffstat (limited to 'ls.c')
-rw-r--r--ls.c51
1 files changed, 23 insertions, 28 deletions
diff --git a/ls.c b/ls.c
index 0558bb227..3b380671d 100644
--- a/ls.c
+++ b/ls.c
@@ -40,11 +40,6 @@
40 * 1. requires lstat (BSD) - how do you do it without? 40 * 1. requires lstat (BSD) - how do you do it without?
41 */ 41 */
42 42
43#define FEATURE_USERNAME /* show username/groupnames (bypasses libc6 NSS) */
44#define FEATURE_TIMESTAMPS /* show file timestamps */
45#define FEATURE_AUTOWIDTH /* calculate terminal & column widths */
46#define FEATURE_FILETYPECHAR /* enable -p and -F */
47
48#define TERMINAL_WIDTH 80 /* use 79 if your terminal has linefold bug */ 43#define TERMINAL_WIDTH 80 /* use 79 if your terminal has linefold bug */
49#define COLUMN_WIDTH 14 /* default if AUTOWIDTH not defined */ 44#define COLUMN_WIDTH 14 /* default if AUTOWIDTH not defined */
50#define COLUMN_GAP 2 /* includes the file type char, if present */ 45#define COLUMN_GAP 2 /* includes the file type char, if present */
@@ -64,13 +59,13 @@
64#include <dirent.h> 59#include <dirent.h>
65#include <errno.h> 60#include <errno.h>
66#include <stdio.h> 61#include <stdio.h>
67#ifdef FEATURE_TIMESTAMPS 62#ifdef BB_FEATURE_LS_TIMESTAMPS
68#include <time.h> 63#include <time.h>
69#endif 64#endif
70 65
71#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f) 66#define TYPEINDEX(mode) (((mode) >> 12) & 0x0f)
72#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)]) 67#define TYPECHAR(mode) ("0pcCd?bB-?l?s???" [TYPEINDEX(mode)])
73#ifdef FEATURE_FILETYPECHAR 68#ifdef BB_FEATURE_LS_FILETYPES
74#define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)]) 69#define APPCHAR(mode) ("\0|\0\0/\0\0\0\0\0@\0=\0\0\0" [TYPEINDEX(mode)])
75#endif 70#endif
76 71
@@ -103,14 +98,14 @@ static unsigned char display_fmt = FMT_AUTO;
103static unsigned short opts = 0; 98static unsigned short opts = 0;
104static unsigned short column = 0; 99static unsigned short column = 0;
105 100
106#ifdef FEATURE_AUTOWIDTH 101#ifdef BB_FEATURE_AUTOWIDTH
107static unsigned short terminal_width = 0, column_width = 0; 102static unsigned short terminal_width = 0, column_width = 0;
108#else 103#else
109#define terminal_width TERMINAL_WIDTH 104#define terminal_width TERMINAL_WIDTH
110#define column_width COLUMN_WIDTH 105#define column_width COLUMN_WIDTH
111#endif 106#endif
112 107
113#ifdef FEATURE_TIMESTAMPS 108#ifdef BB_FEATURE_LS_TIMESTAMPS
114static unsigned char time_fmt = TIME_MOD; 109static unsigned char time_fmt = TIME_MOD;
115#endif 110#endif
116 111
@@ -163,7 +158,7 @@ static void tab(short col)
163 #undef nspaces 158 #undef nspaces
164} 159}
165 160
166#ifdef FEATURE_FILETYPECHAR 161#ifdef BB_FEATURE_LS_FILETYPES
167static char append_char(mode_t mode) 162static char append_char(mode_t mode)
168{ 163{
169 if (!(opts & DISP_FTYPE)) 164 if (!(opts & DISP_FTYPE))
@@ -185,7 +180,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
185{ 180{
186 char scratch[PATH_MAX]; 181 char scratch[PATH_MAX];
187 short len = strlen(name); 182 short len = strlen(name);
188#ifdef FEATURE_FILETYPECHAR 183#ifdef BB_FEATURE_LS_FILETYPES
189 char append = append_char(info->st_mode); 184 char append = append_char(info->st_mode);
190#endif 185#endif
191 186
@@ -196,7 +191,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
196 column=10; 191 column=10;
197 writenum((long)info->st_nlink,(short)5); 192 writenum((long)info->st_nlink,(short)5);
198 fputs(" ", stdout); 193 fputs(" ", stdout);
199#ifdef FEATURE_USERNAME 194#ifdef BB_FEATURE_LS_USERNAME
200 if (!(opts & DISP_NUMERIC)) { 195 if (!(opts & DISP_NUMERIC)) {
201 scratch[8]='\0'; 196 scratch[8]='\0';
202 my_getpwuid( scratch, info->st_uid); 197 my_getpwuid( scratch, info->st_uid);
@@ -208,7 +203,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
208#endif 203#endif
209 writenum((long)info->st_uid,(short)0); 204 writenum((long)info->st_uid,(short)0);
210 tab(16); 205 tab(16);
211#ifdef FEATURE_USERNAME 206#ifdef BB_FEATURE_LS_USERNAME
212 if (!(opts & DISP_NUMERIC)) { 207 if (!(opts & DISP_NUMERIC)) {
213 scratch[8]='\0'; 208 scratch[8]='\0';
214 my_getgrgid( scratch, info->st_gid); 209 my_getgrgid( scratch, info->st_gid);
@@ -228,7 +223,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
228 else 223 else
229 writenum((long)info->st_size,(short)8); 224 writenum((long)info->st_size,(short)8);
230 fputs(" ", stdout); 225 fputs(" ", stdout);
231#ifdef FEATURE_TIMESTAMPS 226#ifdef BB_FEATURE_LS_TIMESTAMPS
232 { 227 {
233 time_t cal; 228 time_t cal;
234 char *string; 229 char *string;
@@ -264,7 +259,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
264 wr(" -> ", 4); 259 wr(" -> ", 4);
265 len = readlink(fullname, scratch, sizeof scratch); 260 len = readlink(fullname, scratch, sizeof scratch);
266 if (len > 0) fwrite(scratch, 1, len, stdout); 261 if (len > 0) fwrite(scratch, 1, len, stdout);
267#ifdef FEATURE_FILETYPECHAR 262#ifdef BB_FEATURE_LS_FILETYPES
268 /* show type of destination */ 263 /* show type of destination */
269 if (opts & DISP_FTYPE) { 264 if (opts & DISP_FTYPE) {
270 if (!stat(fullname, info)) { 265 if (!stat(fullname, info)) {
@@ -275,7 +270,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
275 } 270 }
276#endif 271#endif
277 } 272 }
278#ifdef FEATURE_FILETYPECHAR 273#ifdef BB_FEATURE_LS_FILETYPES
279 else if (append) 274 else if (append)
280 wr(&append, 1); 275 wr(&append, 1);
281#endif 276#endif
@@ -289,7 +284,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
289 newline(); 284 newline();
290 else { 285 else {
291 if (nexttab + column_width > terminal_width 286 if (nexttab + column_width > terminal_width
292#ifndef FEATURE_AUTOWIDTH 287#ifndef BB_FEATURE_AUTOWIDTH
293 || nexttab + len >= terminal_width 288 || nexttab + len >= terminal_width
294#endif 289#endif
295 ) 290 )
@@ -298,7 +293,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
298 tab(nexttab); 293 tab(nexttab);
299 } 294 }
300 /* work out where next column starts */ 295 /* work out where next column starts */
301#ifdef FEATURE_AUTOWIDTH 296#ifdef BB_FEATURE_AUTOWIDTH
302 /* we know the calculated width is big enough */ 297 /* we know the calculated width is big enough */
303 nexttab = column + column_width + COLUMN_GAP; 298 nexttab = column + column_width + COLUMN_GAP;
304#else 299#else
@@ -311,7 +306,7 @@ static void list_single(const char *name, struct stat *info, const char *fullnam
311 /* now write the data */ 306 /* now write the data */
312 wr(name, len); 307 wr(name, len);
313 column = column + len; 308 column = column + len;
314#ifdef FEATURE_FILETYPECHAR 309#ifdef BB_FEATURE_LS_FILETYPES
315 if (append) 310 if (append)
316 wr(&append, 1), column++; 311 wr(&append, 1), column++;
317#endif 312#endif
@@ -352,7 +347,7 @@ static int list_item(const char *name)
352 347
353 dir = opendir(name); 348 dir = opendir(name);
354 if (!dir) goto listerr; 349 if (!dir) goto listerr;
355#ifdef FEATURE_AUTOWIDTH 350#ifdef BB_FEATURE_AUTOWIDTH
356 column_width = 0; 351 column_width = 0;
357 while ((entry = readdir(dir)) != NULL) { 352 while ((entry = readdir(dir)) != NULL) {
358 short w = strlen(entry->d_name); 353 short w = strlen(entry->d_name);
@@ -403,22 +398,22 @@ listerr:
403} 398}
404 399
405static const char ls_usage[] = "ls [-1a" 400static const char ls_usage[] = "ls [-1a"
406#ifdef FEATURE_TIMESTAMPS 401#ifdef BB_FEATURE_LS_TIMESTAMPS
407 "c" 402 "c"
408#endif 403#endif
409 "d" 404 "d"
410#ifdef FEATURE_TIMESTAMPS 405#ifdef BB_FEATURE_LS_TIMESTAMPS
411 "e" 406 "e"
412#endif 407#endif
413 "ln" 408 "ln"
414#ifdef FEATURE_FILETYPECHAR 409#ifdef BB_FEATURE_LS_FILETYPES
415 "p" 410 "p"
416#endif 411#endif
417#ifdef FEATURE_TIMESTAMPS 412#ifdef BB_FEATURE_LS_TIMESTAMPS
418 "u" 413 "u"
419#endif 414#endif
420 "xAC" 415 "xAC"
421#ifdef FEATURE_FILETYPECHAR 416#ifdef BB_FEATURE_LS_FILETYPES
422 "F" 417 "F"
423#endif 418#endif
424#ifdef FEATURE_RECURSIVE 419#ifdef FEATURE_RECURSIVE
@@ -451,7 +446,7 @@ ls_main(int argc, char * * argv)
451 case '1': display_fmt = FMT_SINGLE; break; 446 case '1': display_fmt = FMT_SINGLE; break;
452 case 'x': display_fmt = FMT_ROWS; break; 447 case 'x': display_fmt = FMT_ROWS; break;
453 case 'C': display_fmt = FMT_COLUMNS; break; 448 case 'C': display_fmt = FMT_COLUMNS; break;
454#ifdef FEATURE_FILETYPECHAR 449#ifdef BB_FEATURE_LS_FILETYPES
455 case 'p': opts |= DISP_FTYPE; break; 450 case 'p': opts |= DISP_FTYPE; break;
456 case 'F': opts |= DISP_FTYPE|DISP_EXEC; break; 451 case 'F': opts |= DISP_FTYPE|DISP_EXEC; break;
457#endif 452#endif
@@ -462,7 +457,7 @@ ls_main(int argc, char * * argv)
462#ifdef FEATURE_RECURSIVE 457#ifdef FEATURE_RECURSIVE
463 case 'R': opts |= DIR_RECURSE; break; 458 case 'R': opts |= DIR_RECURSE; break;
464#endif 459#endif
465#ifdef FEATURE_TIMESTAMPS 460#ifdef BB_FEATURE_LS_TIMESTAMPS
466 case 'u': time_fmt = TIME_ACCESS; break; 461 case 'u': time_fmt = TIME_ACCESS; break;
467 case 'c': time_fmt = TIME_CHANGE; break; 462 case 'c': time_fmt = TIME_CHANGE; break;
468 case 'e': opts |= DISP_FULLTIME; break; 463 case 'e': opts |= DISP_FULLTIME; break;
@@ -478,7 +473,7 @@ ls_main(int argc, char * * argv)
478 display_fmt = isatty(fileno(stdout)) ? FMT_COLUMNS : FMT_SINGLE; 473 display_fmt = isatty(fileno(stdout)) ? FMT_COLUMNS : FMT_SINGLE;
479 if (argi < argc - 1) 474 if (argi < argc - 1)
480 opts |= DISP_DIRNAME; /* 2 or more items? label directories */ 475 opts |= DISP_DIRNAME; /* 2 or more items? label directories */
481#ifdef FEATURE_AUTOWIDTH 476#ifdef BB_FEATURE_AUTOWIDTH
482 /* could add a -w option and/or TIOCGWINSZ call */ 477 /* could add a -w option and/or TIOCGWINSZ call */
483 if (terminal_width < 1) terminal_width = TERMINAL_WIDTH; 478 if (terminal_width < 1) terminal_width = TERMINAL_WIDTH;
484 479
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