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 IF_FEATURE_PIDOF_SINGLE(OPTBIT_SINGLE,)
14 IF_FEATURE_PIDOF_OMIT( OPTBIT_OMIT ,)
15 OPT_SINGLE = IF_FEATURE_PIDOF_SINGLE((1<<OPTBIT_SINGLE)) + 0,
16 OPT_OMIT = IF_FEATURE_PIDOF_OMIT( (1<<OPTBIT_OMIT )) + 0,
19 int pidof_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
20 int pidof_main(int argc UNUSED_PARAM, 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(argv, ""
31 IF_FEATURE_PIDOF_SINGLE ("s")
32 IF_FEATURE_PIDOF_OMIT("o:", &omits));
34 #if ENABLE_FEATURE_PIDOF_OMIT
37 llist_t *omits_p = omits;
39 omits_p = llist_find_str(omits_p, "%PPID");
42 /* are we asked to exclude the parent's process ID? */
43 omits_p->data = utoa((unsigned)getppid());
47 /* Looks like everything is set to go. */
53 /* reverse the pidlist like GNU pidof does. */
54 pidList = pidlist_reverse(find_pid_by_name(*argv));
55 for (pl = pidList; *pl; pl++) {
56 #if ENABLE_FEATURE_PIDOF_OMIT
58 llist_t *omits_p = omits;
60 if (xatoul(omits_p->data) == (unsigned long)(*pl)) {
63 omits_p = omits_p->link;
67 printf(" %u" + first, (unsigned)*pl);
69 if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & OPT_SINGLE))
71 #if ENABLE_FEATURE_PIDOF_OMIT
81 #if ENABLE_FEATURE_PIDOF_OMIT
82 if (ENABLE_FEATURE_CLEAN_UP)
83 llist_free(omits, NULL);
85 return first; /* 1 (failure) - no processes found */