mirror of
https://github.com/sheumann/hush.git
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147 lines
2.9 KiB
C
147 lines
2.9 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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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
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*/
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#include "busybox.h"
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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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#define KILL 0
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#define KILLALL 1
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int kill_main(int argc, char **argv)
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{
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int whichApp, signo = SIGTERM;
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const char *name;
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int errors = 0;
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#ifdef CONFIG_KILLALL
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int quiet=0;
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/* Figure out what we are trying to do here */
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whichApp = (strcmp(bb_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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/* Parse any options */
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if (argc < 2)
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bb_show_usage();
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if(argv[1][0] != '-'){
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argv++;
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argc--;
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goto do_it_now;
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}
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/* The -l option, which prints out signal names. */
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if(argv[1][1]=='l' && argv[1][2]=='\0'){
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if(argc==2) {
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/* Print the whole signal list */
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int col = 0;
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for(signo=1; signo < NSIG; signo++) {
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name = u_signal_names(0, &signo, 1);
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if(name==NULL) /* unnamed */
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continue;
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col += printf("%2d) %-16s", signo, 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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} else {
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for(argv++; *argv; argv++) {
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name = u_signal_names(*argv, &signo, -1);
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if(name!=NULL)
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printf("%s\n", name);
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}
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}
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/* If they specified -l, were all done */
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return EXIT_SUCCESS;
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}
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#ifdef CONFIG_KILLALL
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/* The -q quiet option */
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if(whichApp != KILL && argv[1][1]=='q' && argv[1][2]=='\0'){
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quiet++;
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argv++;
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argc--;
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if(argc<2 || argv[1][0] != '-'){
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goto do_it_now;
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}
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}
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#endif
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if(!u_signal_names(argv[1]+1, &signo, 0))
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bb_error_msg_and_die( "bad signal name '%s'", argv[1]+1);
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argv+=2;
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argc-=2;
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do_it_now:
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/* Pid or name required */
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if (argc <= 0)
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bb_show_usage();
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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) && **argv != '-')
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bb_error_msg_and_die( "Bad PID '%s'", *argv);
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pid = strtol(*argv, NULL, 0);
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if (kill(pid, signo) != 0) {
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bb_perror_msg( "Could not kill pid '%d'", pid);
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errors++;
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}
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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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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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errors++;
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if (quiet==0)
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bb_error_msg( "%s: no process killed", *argv);
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} else {
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long *pl;
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for(pl = pidList; *pl !=0 ; pl++) {
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if (*pl==myPid)
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continue;
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if (kill(*pl, signo) != 0) {
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errors++;
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if (quiet==0)
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bb_perror_msg( "Could not kill pid '%ld'", *pl);
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}
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}
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}
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free(pidList);
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argv++;
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}
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}
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#endif
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return errors;
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}
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