mirror of
https://github.com/sheumann/hush.git
synced 2024-12-21 23:29:34 +00:00
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
/* vi: set sw=4 ts=4: */
|
|
/*
|
|
* pidof implementation for busybox
|
|
*
|
|
* 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"
|
|
|
|
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,
|
|
};
|
|
|
|
int pidof_main(int argc, char **argv);
|
|
int pidof_main(int argc, char **argv)
|
|
{
|
|
unsigned first = 1;
|
|
unsigned fail = 1;
|
|
unsigned opt;
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
llist_t *omits = NULL; /* list of pids to omit */
|
|
opt_complementary = "o::";
|
|
#endif
|
|
|
|
/* do unconditional option parsing */
|
|
opt = getopt32(argc, argv, ""
|
|
USE_FEATURE_PIDOF_SINGLE ("s")
|
|
USE_FEATURE_PIDOF_OMIT("o:", &omits));
|
|
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
/* fill omit list. */
|
|
{
|
|
char getppid_str[sizeof(int)*3 + 1];
|
|
llist_t * omits_p = omits;
|
|
while (omits_p) {
|
|
/* are we asked to exclude the parent's process ID? */
|
|
if (!strncmp(omits_p->data, "%PPID", 5)) {
|
|
llist_pop(&omits_p);
|
|
snprintf(getppid_str, sizeof(getppid_str), "%u", (unsigned)getppid());
|
|
llist_add_to(&omits_p, getppid_str);
|
|
}
|
|
omits_p = omits_p->link;
|
|
}
|
|
}
|
|
#endif
|
|
/* Looks like everything is set to go. */
|
|
while (optind < argc) {
|
|
pid_t *pidList;
|
|
pid_t *pl;
|
|
|
|
/* reverse the pidlist like GNU pidof does. */
|
|
pidList = pidlist_reverse(find_pid_by_name(argv[optind]));
|
|
for (pl = pidList; *pl; pl++) {
|
|
SKIP_FEATURE_PIDOF_OMIT(const) unsigned omitted = 0;
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
if (opt & OPT_OMIT) {
|
|
llist_t *omits_p = omits;
|
|
while (omits_p) {
|
|
if (xatoul(omits_p->data) == *pl) {
|
|
omitted = 1;
|
|
break;
|
|
} else
|
|
omits_p = omits_p->link;
|
|
}
|
|
}
|
|
#endif
|
|
if (!omitted) {
|
|
printf(" %u" + first, (unsigned)*pl);
|
|
first = 0;
|
|
}
|
|
fail = (!ENABLE_FEATURE_PIDOF_OMIT && omitted);
|
|
|
|
if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & OPT_SINGLE))
|
|
break;
|
|
}
|
|
free(pidList);
|
|
optind++;
|
|
}
|
|
putchar('\n');
|
|
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
if (ENABLE_FEATURE_CLEAN_UP)
|
|
llist_free(omits, NULL);
|
|
#endif
|
|
return fail ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|