b24d65659f
that into a pid_t, which is unsigned on a number archs. Furthermore, find_pid_by_name() would _never_ return an error if the intended proces was "init", but instead would return 1, meaning we would fail to work on 2.4.x kernels running an initrd... -Erik
143 lines
3.3 KiB
C
143 lines
3.3 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* Mini kill/killall implementation for busybox
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*
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* Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <unistd.h>
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#include <signal.h>
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#include <ctype.h>
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#include <string.h>
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#include <unistd.h>
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#include "busybox.h"
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static const int KILL = 0;
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static const int KILLALL = 1;
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extern int kill_main(int argc, char **argv)
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{
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int whichApp, sig = SIGTERM;
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const char *name;
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#ifdef CONFIG_KILLALL
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/* Figure out what we are trying to do here */
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whichApp = (strcmp(applet_name, "killall") == 0)? KILLALL : KILL;
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#else
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whichApp = KILL;
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#endif
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argc--;
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argv++;
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/* Parse any options */
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if (argc < 1)
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show_usage();
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while (argc > 0 && **argv == '-') {
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while (*++(*argv)) {
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switch (**argv) {
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case 'l':
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if(argc>1) {
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for(argv++; *argv; argv++) {
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name = u_signal_names(*argv, &sig, -1);
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if(name!=NULL)
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printf("%s\n", name);
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}
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} else {
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int col = 0;
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for(sig=1; sig < NSIG; sig++) {
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name = u_signal_names(0, &sig, 1);
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if(name==NULL) /* unnamed */
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continue;
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col += printf("%2d) %-16s", sig, name);
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if (col > 60) {
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printf("\n");
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col = 0;
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}
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}
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printf("\n");
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}
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return EXIT_SUCCESS;
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case '-':
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show_usage();
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default:
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name = u_signal_names(*argv, &sig, 0);
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if(name==NULL)
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error_msg_and_die( "bad signal name: %s", *argv);
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argc--;
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argv++;
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goto do_it_now;
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}
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argc--;
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argv++;
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}
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}
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do_it_now:
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if (whichApp == KILL) {
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/* Looks like they want to do a kill. Do that */
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while (--argc >= 0) {
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int pid;
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if (!isdigit(**argv))
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perror_msg_and_die( "Bad PID");
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pid = strtol(*argv, NULL, 0);
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if (kill(pid, sig) != 0)
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perror_msg_and_die( "Could not kill pid '%d'", pid);
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argv++;
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}
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}
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#ifdef CONFIG_KILLALL
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else {
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int all_found = TRUE;
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pid_t myPid=getpid();
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/* Looks like they want to do a killall. Do that */
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while (--argc >= 0) {
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long* pidList;
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pidList = find_pid_by_name( *argv);
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if (!pidList || *pidList<=0) {
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all_found = FALSE;
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error_msg_and_die( "%s: no process killed", *argv);
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}
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for(; pidList && *pidList!=0; pidList++) {
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if (*pidList==myPid)
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continue;
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if (kill(*pidList, sig) != 0)
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perror_msg_and_die( "Could not kill pid '%d'", *pidList);
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}
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/* Note that we don't bother to free the memory
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* allocated in find_pid_by_name(). It will be freed
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* upon exit, so we can save a byte or two */
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argv++;
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}
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if (all_found == FALSE)
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return EXIT_FAILURE;
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}
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#endif
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return EXIT_SUCCESS;
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}
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