1 /* vi: set sw=4 ts=4: */
3 * pidof implementation for busybox
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
7 * Licensed under the GPL version 2, see the file LICENSE in this tarball.
13 USE_FEATURE_PIDOF_SINGLE(OPTBIT_SINGLE,)
14 USE_FEATURE_PIDOF_OMIT( OPTBIT_OMIT ,)
15 OPT_SINGLE = USE_FEATURE_PIDOF_SINGLE((1<<OPTBIT_SINGLE)) + 0,
16 OPT_OMIT = USE_FEATURE_PIDOF_OMIT( (1<<OPTBIT_OMIT )) + 0,
19 int pidof_main(int argc, char **argv)
24 #if ENABLE_FEATURE_PIDOF_OMIT
25 llist_t *omits = NULL; /* list of pids to omit */
26 opt_complementary = "o::";
29 /* do unconditional option parsing */
30 opt = getopt32(argc, argv, ""
31 USE_FEATURE_PIDOF_SINGLE ("s")
32 USE_FEATURE_PIDOF_OMIT("o:", &omits));
34 #if ENABLE_FEATURE_PIDOF_OMIT
37 char getppid_str[sizeof(int)*3 + 1];
38 llist_t * omits_p = omits;
40 /* are we asked to exclude the parent's process ID? */
41 if (!strncmp(omits_p->data, "%PPID", 5)) {
43 snprintf(getppid_str, sizeof(getppid_str), "%u", (unsigned)getppid());
44 llist_add_to(&omits_p, getppid_str);
46 omits_p = omits_p->link;
50 /* Looks like everything is set to go. */
51 while (optind < argc) {
55 /* reverse the pidlist like GNU pidof does. */
56 pidList = pidlist_reverse(find_pid_by_name(argv[optind]));
57 for (pl = pidList; *pl; pl++) {
58 SKIP_FEATURE_PIDOF_OMIT(const) unsigned omitted = 0;
59 #if ENABLE_FEATURE_PIDOF_OMIT
61 llist_t *omits_p = omits;
63 if (xatoul(omits_p->data) == *pl) {
67 omits_p = omits_p->link;
72 printf(" %u" + first, (unsigned)*pl);
75 fail = (!ENABLE_FEATURE_PIDOF_OMIT && omitted);
77 if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & OPT_SINGLE))
85 #if ENABLE_FEATURE_PIDOF_OMIT
86 if (ENABLE_FEATURE_CLEAN_UP)
87 llist_free(omits, NULL);
89 return fail ? EXIT_FAILURE : EXIT_SUCCESS;