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Diffstat (limited to 'release/src/router/busybox/procps/pidof.c')
-rw-r--r--release/src/router/busybox/procps/pidof.c115
1 files changed, 65 insertions, 50 deletions
diff --git a/release/src/router/busybox/procps/pidof.c b/release/src/router/busybox/procps/pidof.c
index 2fe8ecd2..19423996 100644
--- a/release/src/router/busybox/procps/pidof.c
+++ b/release/src/router/busybox/procps/pidof.c
@@ -2,70 +2,85 @@
/*
* pidof implementation for busybox
*
- * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
+ * Licensed under the GPL version 2, see the file LICENSE in this tarball.
*/
+#include "libbb.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <unistd.h>
-#include <signal.h>
-#include <ctype.h>
-#include <string.h>
-#include <unistd.h>
-#include "busybox.h"
-
+enum {
+ USE_FEATURE_PIDOF_SINGLE(OPTBIT_SINGLE,)
+ USE_FEATURE_PIDOF_OMIT( OPTBIT_OMIT ,)
+ OPT_SINGLE = USE_FEATURE_PIDOF_SINGLE((1<<OPTBIT_SINGLE)) + 0,
+ OPT_OMIT = USE_FEATURE_PIDOF_OMIT( (1<<OPTBIT_OMIT )) + 0,
+};
-extern int pidof_main(int argc, char **argv)
+int pidof_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int pidof_main(int argc UNUSED_PARAM, char **argv)
{
- int opt, n = 0;
- int single_flag = 0;
- int fail = 1;
+ unsigned first = 1;
+ unsigned opt;
+#if ENABLE_FEATURE_PIDOF_OMIT
+ llist_t *omits = NULL; /* list of pids to omit */
+ opt_complementary = "o::";
+#endif
- /* do normal option parsing */
- while ((opt = getopt(argc, argv, "s")) > 0) {
- switch (opt) {
- case 's':
- single_flag = 1;
+ /* do unconditional option parsing */
+ opt = getopt32(argv, ""
+ USE_FEATURE_PIDOF_SINGLE ("s")
+ USE_FEATURE_PIDOF_OMIT("o:", &omits));
+
+#if ENABLE_FEATURE_PIDOF_OMIT
+ /* fill omit list. */
+ {
+ llist_t *omits_p = omits;
+ while (1) {
+ omits_p = llist_find_str(omits_p, "%PPID");
+ if (!omits_p)
break;
- default:
- bb_show_usage();
+ /* are we asked to exclude the parent's process ID? */
+ omits_p->data = utoa((unsigned)getppid());
}
}
+#endif
+ /* Looks like everything is set to go. */
+ argv += optind;
+ while (*argv) {
+ pid_t *pidList;
+ pid_t *pl;
- /* Looks like everything is set to go. */
- while(optind < argc) {
- long *pidList;
- long *pl;
-
- pidList = find_pid_by_name(argv[optind]);
- for(pl = pidList; *pl > 0; pl++) {
- printf("%s%ld", (n++ ? " " : ""), *pl);
- fail = 0;
- if (single_flag)
+ /* reverse the pidlist like GNU pidof does. */
+ pidList = pidlist_reverse(find_pid_by_name(*argv));
+ for (pl = pidList; *pl; pl++) {
+#if ENABLE_FEATURE_PIDOF_OMIT
+ if (opt & OPT_OMIT) {
+ llist_t *omits_p = omits;
+ while (omits_p) {
+ if (xatoul(omits_p->data) == (unsigned long)(*pl)) {
+ goto omitting;
+ }
+ omits_p = omits_p->link;
+ }
+ }
+#endif
+ printf(" %u" + first, (unsigned)*pl);
+ first = 0;
+ if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & OPT_SINGLE))
break;
+#if ENABLE_FEATURE_PIDOF_OMIT
+ omitting: ;
+#endif
}
free(pidList);
- optind++;
-
+ argv++;
}
- printf("\n");
+ if (!first)
+ bb_putchar('\n');
- return fail ? EXIT_FAILURE : EXIT_SUCCESS;
+#if ENABLE_FEATURE_PIDOF_OMIT
+ if (ENABLE_FEATURE_CLEAN_UP)
+ llist_free(omits, NULL);
+#endif
+ return first; /* 1 (failure) - no processes found */
}