Move start_stop_daemon to debianutils.

Cleanup run_parts a bit and add long opts


git-svn-id: svn://busybox.net/trunk/busybox@7113 69ca8d6d-28ef-0310-b511-8ec308f3f277

6 files changed, 40 insertions, 288 deletions

diff --git a/debianutils/Config.in b/debianutils/Config.in
index 108cc5388..8bdb91f26 100644
--- a/debianutils/Config.in
+++ b/debianutils/Config.in
@@ -33,6 +33,14 @@ config CONFIG_RUN_PARTS
           Unless you know that run-parts is used in some of your scripts
           you can safely say N here.
 
+config CONFIG_START_STOP_DAEMON
+        bool "start-stop-daemon"
+        default y
+        help
+          start-stop-daemon is used to control the creation and
+          termination of system-level processes, usually the ones
+          started during the startup of the system.
+
 config CONFIG_WHICH
         bool "which"
         default n
diff --git a/debianutils/Makefile.in b/debianutils/Makefile.in
index 313faa0de..8ca05c738 100644
--- a/debianutils/Makefile.in
+++ b/debianutils/Makefile.in
@@ -27,6 +27,7 @@ DEBIANUTILS-y:=
 DEBIANUTILS-$(CONFIG_MKTEMP)            += mktemp.o
 DEBIANUTILS-$(CONFIG_READLINK)          += readlink.o
 DEBIANUTILS-$(CONFIG_RUN_PARTS)         += run_parts.o
+DEBIANUTILS-$(CONFIG_START_STOP_DAEMON) += start_stop_daemon.o
 DEBIANUTILS-$(CONFIG_WHICH)             += which.o
 
 libraries-y+=$(DEBIANUTILS_DIR)$(DEBIANUTILS_AR)
diff --git a/debianutils/run_parts.c b/debianutils/run_parts.c
index a941e1fc8..98fd58887 100644
--- a/debianutils/run_parts.c
+++ b/debianutils/run_parts.c
@@ -54,6 +54,13 @@
 
 #include "libbb.h"
 
+static const struct option runparts_long_options[] = {
+        { "test",               0,              NULL,           't' },
+        { "umask",              1,              NULL,           'u' },
+        { "arg",                1,              NULL,           'a' },
+        { 0,                    0,              0,                      0 }
+};
+
 /* run_parts_main */
 /* Process options */
 int run_parts_main(int argc, char **argv)
@@ -65,32 +72,31 @@ int run_parts_main(int argc, char **argv)
 
         umask(022);
 
-        while ((opt = getopt(argc, argv, "tu:a:")) != -1) {
+        while ((opt = getopt_long (argc, argv, "tu:a:",
+                                        runparts_long_options, NULL)) > 0)
+        {
                 switch (opt) {
-                case 't':               /* Enable test mode */
-                        test_mode = 1;
-                        break;
-                case 'u':               /* Set the umask of the programs executed */
-                        /* Check and set the umask of the program executed. As stated in the original
-                         * run-parts, the octal conversion in libc is not foolproof; it will take the 
-                         * 8 and 9 digits under some circumstances. We'll just have to live with it.
-                         */
-                        {
-                                const unsigned int mask = (unsigned int) strtol(optarg, NULL, 8);
-                                if (mask > 07777) {
-                                        bb_perror_msg_and_die("bad umask value");
-                                }
-                                umask(mask);
-                        }
-                        break;
-                case 'a':               /* Pass an argument to the programs */
-                        /* Add an argument to the commands that we will call.
-                         * Called once for every argument. */
-                        args = xrealloc(args, (argcount + 2) * (sizeof(char *)));
-                        args[argcount++] = optarg;
-                        break;
-                default:
-                        bb_show_usage();
+                        /* Enable test mode */
+                        case 't':
+                                test_mode++;
+                                break;
+                        /* Set the umask of the programs executed */
+                        case 'u':
+                                /* Check and set the umask of the program executed. As stated in the original
+                                 * run-parts, the octal conversion in libc is not foolproof; it will take the 
+                                 * 8 and 9 digits under some circumstances. We'll just have to live with it.
+                                 */
+                                umask(bb_xgetlarg(optarg, 8, 0, 07777));
+                                break;
+                        /* Pass an argument to the programs */
+                        case 'a':
+                                /* Add an argument to the commands that we will call.
+                                 * Called once for every argument. */
+                                args = xrealloc(args, (argcount + 2) * (sizeof(char *)));
+                                args[argcount++] = optarg;
+                                break;
+                        default:
+                                bb_show_usage();
                 }
         }
 
diff --git a/init/Config.in b/init/Config.in
index af7aac833..eb4211386 100644
--- a/init/Config.in
+++ b/init/Config.in
@@ -85,15 +85,6 @@ config CONFIG_MSVC
         help
           msvc is used to start and stop processes controlled by minit
 
-# Should start-stop-daemon be moved under debianutils?
-config CONFIG_START_STOP_DAEMON
-        bool "start-stop-daemon"
-        default y
-        help
-          start-stop-daemon is used to control the creation and
-          termination of system-level processes, usually the ones
-          started during the startup of the system.
-
 config CONFIG_MESG
         bool "mesg"
         default y
diff --git a/init/Makefile.in b/init/Makefile.in
index b1f464d19..1b13f693b 100644
--- a/init/Makefile.in
+++ b/init/Makefile.in
@@ -31,7 +31,6 @@ INIT-$(CONFIG_MSVC)			+= msvc.o
 INIT-$(CONFIG_PIDFILEHACK)              += pidfilehack.o
 INIT-$(CONFIG_POWEROFF)                 += poweroff.o
 INIT-$(CONFIG_REBOOT)                   += reboot.o
-INIT-$(CONFIG_START_STOP_DAEMON)        += start_stop_daemon.o
 
 ifeq ($(CONFIG_HALT), y)
 CONFIG_INIT_SHARED=y
diff --git a/init/start_stop_daemon.c b/init/start_stop_daemon.c
deleted file mode 100644
index 482078e6e..000000000
--- a/init/start_stop_daemon.c
+++ /dev/null
@@ -1,253 +0,0 @@
-/* vi: set sw=4 ts=4: */
-/*
- * Mini start-stop-daemon implementation(s) for busybox
- *
- * Written by Marek Michalkiewicz <marekm@i17linuxb.ists.pwr.wroc.pl>,
- * public domain.
- * Adapted for busybox David Kimdon <dwhedon@gordian.com>
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <stdarg.h>
-#include <signal.h>
-#include <errno.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <unistd.h>
-#include <getopt.h>
-
-#include "busybox.h"
-#include "pwd_.h"
-
-static int start = 0;
-static int stop = 0;
-static int fork_before_exec = 0;
-static int signal_nr = 15;
-static int user_id = -1;
-static char *userspec = NULL;
-static char *cmdname = NULL;
-static char *execname = NULL;
-static char *startas = NULL;
-
-typedef struct pid_list {
-        struct pid_list *next;
-        int pid;
-} pid_list;
-
-static pid_list *found = NULL;
-
-static inline void
-push(int pid)
-{
-        pid_list *p;
-
-        p = xmalloc(sizeof(*p));
-        p->next = found;
-        p->pid = pid;
-        found = p;
-}
-
-static int
-pid_is_exec(int pid, const char *exec)
-{
-        char buf[PATH_MAX];
-        FILE *fp;
-
-        sprintf(buf, "/proc/%d/cmdline", pid);
-        fp = fopen(buf, "r");
-        if (fp && fgets (buf, sizeof (buf), fp) ) {
-                fclose(fp);
-            if (strncmp (buf, exec, strlen(exec)) == 0)
-                return 1;
-        }
-        return 0;
-}
-
-
-static int
-pid_is_user(int pid, int uid)
-{
-        struct stat sb;
-        char buf[32];
-
-        sprintf(buf, "/proc/%d", pid);
-        if (stat(buf, &sb) != 0)
-                return 0;
-        return (sb.st_uid == uid);
-}
-
-
-static int
-pid_is_cmd(int pid, const char *name)
-{
-        char buf[32];
-        FILE *f;
-        int c;
-
-        sprintf(buf, "/proc/%d/stat", pid);
-        f = fopen(buf, "r");
-        if (!f)
-                return 0;
-        while ((c = getc(f)) != EOF && c != '(')
-                ;
-        if (c != '(') {
-                fclose(f);
-                return 0;
-        }
-        /* this hopefully handles command names containing ')' */
-        while ((c = getc(f)) != EOF && c == *name)
-                name++;
-        fclose(f);
-        return (c == ')' && *name == '\0');
-}
-
-
-static void
-check(int pid)
-{
-        if (execname && !pid_is_exec(pid, execname)) {
-                return;
-        }
-        if (userspec && !pid_is_user(pid, user_id)) {
-                return;
-        }
-        if (cmdname && !pid_is_cmd(pid, cmdname)) {
-                return;
-        }
-        push(pid);
-}
-
-
-
-static void
-do_procfs(void)
-{
-        DIR *procdir;
-        struct dirent *entry;
-        int foundany, pid;
-
-        procdir = opendir("/proc");
-        if (!procdir)
-                bb_perror_msg_and_die ("opendir /proc");
-
-        foundany = 0;
-        while ((entry = readdir(procdir)) != NULL) {
-                if (sscanf(entry->d_name, "%d", &pid) != 1)
-                        continue;
-                foundany++;
-                check(pid);
-        }
-        closedir(procdir);
-        if (!foundany)
-                bb_error_msg_and_die ("nothing in /proc - not mounted?");
-}
-
-
-static void
-do_stop(void)
-{
-        char what[1024];
-        pid_list *p;
-        int killed = 0;
-
-        if (cmdname)
-                strcpy(what, cmdname);
-        else if (execname)
-                strcpy(what, execname);
-        else if (userspec)
-                sprintf(what, "process(es) owned by `%s'", userspec);
-        else
-                bb_error_msg_and_die ("internal error, please report");
-
-        if (!found) {
-                printf("no %s found; none killed.\n", what);
-                return;
-        }
-        for (p = found; p; p = p->next) {
-                if (kill(p->pid, signal_nr) == 0) {
-                        p->pid = -p->pid;
-                        killed++;
-                } else {
-                        bb_perror_msg("warning: failed to kill %d:", p->pid);
-                }
-        }
-        if (killed) {
-                printf("stopped %s (pid", what);
-                for (p = found; p; p = p->next)
-                        if(p->pid < 0)
-                                printf(" %d", -p->pid);
-                printf(").\n");
-        }
-}
-
-
-static const struct option ssd_long_options[] = {
-        { "stop",               0,              NULL,           'K' },
-        { "start",              0,              NULL,           'S' },
-        { "background", 0,              NULL,           'b' },
-        { "startas",    1,              NULL,           'a' },
-        { "name",               1,              NULL,           'n' },
-        { "signal",             1,              NULL,           's' },
-        { "user",               1,              NULL,           'u' },
-        { "exec",               1,              NULL,           'x' },
-        { 0,                    0,              0,                      0 }
-};
-
-int
-start_stop_daemon_main(int argc, char **argv)
-{
-        int flags;
-        char *signame;
-        bb_applet_long_options = ssd_long_options;
-
-        flags = bb_getopt_ulflags(argc, argv, "KSba:n:s:u:x:", 
-                        &startas, &cmdname, &signame, &userspec, &execname);
-
-        /* Be sneaky and avoid branching */
-        stop = (flags & 1);
-        start = (flags & 2);
-        fork_before_exec = (flags & 4);
-
-        signal_nr = bb_xgetlarg(signame, 10, 0, NSIG);
-
-        if (start == stop)
-                bb_error_msg_and_die ("need exactly one of -S or -K");
-
-        if (!execname && !userspec)
-                bb_error_msg_and_die ("need at least one of -x or -u");
-
-        if (!startas)
-                startas = execname;
-
-        if (start && !startas)
-                bb_error_msg_and_die ("-S needs -x or -a");
-
-        argc -= optind;
-        argv += optind;
-
-        if (userspec && sscanf(userspec, "%d", &user_id) != 1)
-                user_id = my_getpwnam(userspec);
-
-        do_procfs();
-
-        if (stop) {
-                do_stop();
-                return EXIT_SUCCESS;
-        }
-
-        if (found) {
-                printf("%s already running.\n%d\n", execname ,found->pid);
-                return EXIT_SUCCESS;
-        }
-        *--argv = startas;
-        if (fork_before_exec) {
-                if (daemon(0, 0) == -1)
-                        bb_perror_msg_and_die ("unable to fork");
-        }
-        setsid();
-        execv(startas, argv);
-        bb_perror_msg_and_die ("unable to start %s", startas);
-}
-