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/* vi: set sw=4 ts=4: */
/*
* Mini kill/killall implementation for busybox
*
* Copyright (C) 1995, 1996 by Bruce Perens <bruce@pixar.com>.
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
*/
#include "busybox.h"
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <signal.h>
#include <ctype.h>
#include <string.h>
#include <unistd.h>
int kill_main(int argc, char **argv)
{
int killall, signo = SIGTERM, errors = 0, quiet=0;
killall = (ENABLE_KILLALL && bb_applet_name[4]=='a') ? 1 : 0;
/* Parse any options */
if (argc < 2)
bb_show_usage();
if(argv[1][0] != '-'){
argv++;
argc--;
goto do_it_now;
}
/* The -l option, which prints out signal names. */
if(argv[1][1]=='l' && argv[1][2]=='\0'){
if(argc==2) {
/* Print the whole signal list */
int col = 0;
for(signo = 0;;) {
char *name = get_signame(++signo);
if (isdigit(*name)) break;
if (col > 60) {
printf("\n");
col = 0;
}
col += printf("%2d) %-16s", signo, name);
}
printf("\n");
} else {
for(argv++; *argv; argv++) {
char *name;
if (isdigit(**argv)) name = get_signame(atoi(*argv));
else {
int temp = get_signum(*argv);
if (temp<0)
bb_error_msg_and_die("unknown signal %s", *argv);
name = get_signame(temp);
}
puts(name);
}
}
/* If they specified -l, were all done */
return EXIT_SUCCESS;
}
/* The -q quiet option */
if(killall && argv[1][1]=='q' && argv[1][2]=='\0'){
quiet++;
argv++;
argc--;
if(argc<2 || argv[1][0] != '-'){
goto do_it_now;
}
}
if(0>(signo = get_signum(argv[1]+1)))
bb_error_msg_and_die( "bad signal name '%s'", argv[1]+1);
argv+=2;
argc-=2;
do_it_now:
/* Pid or name required */
if (argc <= 0)
bb_show_usage();
if (!killall) {
/* Looks like they want to do a kill. Do that */
while (--argc >= 0) {
int pid;
if (!isdigit(**argv) && **argv != '-')
bb_error_msg_and_die( "Bad PID '%s'", *argv);
pid = strtol(*argv, NULL, 0);
if (kill(pid, signo) != 0) {
bb_perror_msg( "Could not kill pid '%d'", pid);
errors++;
}
argv++;
}
} else {
pid_t myPid=getpid();
/* Looks like they want to do a killall. Do that */
while (--argc >= 0) {
long* pidList;
pidList = find_pid_by_name(*argv);
if (!pidList || *pidList<=0) {
errors++;
if (quiet==0)
bb_error_msg( "%s: no process killed", *argv);
} else {
long *pl;
for(pl = pidList; *pl !=0 ; pl++) {
if (*pl==myPid)
continue;
if (kill(*pl, signo) != 0) {
errors++;
if (quiet==0)
bb_perror_msg( "Could not kill pid '%ld'", *pl);
}
}
}
free(pidList);
argv++;
}
}
return errors;
}
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