mirror of
https://github.com/topjohnwu/ndk-busybox.git
synced 2024-12-05 02:16:49 +00:00
124 lines
2.6 KiB
C
124 lines
2.6 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 v2, see the file LICENSE in this tarball.
|
|
*/
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include "busybox.h"
|
|
|
|
#if ENABLE_FEATURE_PIDOF_SINGLE
|
|
#define _SINGLE_COMPL(a) a
|
|
#define SINGLE (1<<0)
|
|
#else
|
|
#define _SINGLE_COMPL(a)
|
|
#define SINGLE (0)
|
|
#endif
|
|
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
#define _OMIT_COMPL(a) a
|
|
#define _OMIT(a) ,a
|
|
#if ENABLE_FEATURE_PIDOF_SINGLE
|
|
#define OMIT (1<<1)
|
|
#else
|
|
#define OMIT (1<<0)
|
|
#endif
|
|
#else
|
|
#define _OMIT_COMPL(a) ""
|
|
#define _OMIT(a)
|
|
#define OMIT (0)
|
|
#define omitted (0)
|
|
#endif
|
|
|
|
extern int pidof_main(int argc, char **argv)
|
|
{
|
|
unsigned n = 0;
|
|
unsigned fail = 1;
|
|
unsigned long int opt;
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
llist_t *omits = NULL; /* list of pids to omit */
|
|
bb_opt_complementally = _OMIT_COMPL("o::");
|
|
#endif
|
|
|
|
/* do unconditional option parsing */
|
|
opt = bb_getopt_ulflags(argc, argv,
|
|
_SINGLE_COMPL("s") _OMIT_COMPL("o:")
|
|
_OMIT(&omits));
|
|
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
/* fill omit list. */
|
|
{
|
|
char getppid_str[32];
|
|
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)) {
|
|
omits_p = llist_free_one(omits_p);
|
|
snprintf(getppid_str, sizeof(getppid_str), "%d", getppid());
|
|
omits_p = llist_add_to(omits_p, getppid_str);
|
|
#if 0
|
|
} else {
|
|
bb_error_msg_and_die("illegal omit pid value (%s)!\n",
|
|
omits_p->data);
|
|
#endif
|
|
}
|
|
omits_p = omits_p->link;
|
|
}
|
|
}
|
|
#endif
|
|
/* Looks like everything is set to go. */
|
|
while(optind < argc) {
|
|
long *pidList;
|
|
long *pl;
|
|
|
|
/* reverse the pidlist like GNU pidof does. */
|
|
pidList = pidlist_reverse(find_pid_by_name(argv[optind]));
|
|
for(pl = pidList; *pl > 0; pl++) {
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
unsigned omitted = 0;
|
|
if (opt & OMIT) {
|
|
llist_t *omits_p = omits;
|
|
while (omits_p)
|
|
if (strtol(omits_p->data, NULL, 10) == *pl) {
|
|
omitted = 1; break;
|
|
} else
|
|
omits_p = omits_p->link;
|
|
}
|
|
#endif
|
|
if (!omitted) {
|
|
if (n) {
|
|
putchar(' ');
|
|
} else {
|
|
n = 1;
|
|
}
|
|
printf("%ld", *pl);
|
|
}
|
|
fail = (!ENABLE_FEATURE_PIDOF_OMIT && omitted);
|
|
|
|
if (ENABLE_FEATURE_PIDOF_SINGLE && (opt & SINGLE))
|
|
break;
|
|
}
|
|
free(pidList);
|
|
optind++;
|
|
}
|
|
putchar('\n');
|
|
|
|
#if ENABLE_FEATURE_PIDOF_OMIT
|
|
if (ENABLE_FEATURE_CLEAN_UP)
|
|
llist_free(omits);
|
|
#endif
|
|
return fail ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|