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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>
#define KILL 0
#define KILLALL 1
int kill_main(int argc, char **argv)
{
int whichApp, signo = SIGTERM;
const char *name;
int errors = 0;
#ifdef CONFIG_KILLALL
int quiet=0;
/* Figure out what we are trying to do here */
whichApp = (strcmp(bb_applet_name, "killall") == 0)? KILLALL : KILL;
#else
whichApp = KILL;
#endif
/* 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=1; signo < NSIG; signo++) {
name = u_signal_names(0, &signo, 1);
if(name==NULL) /* unnamed */
continue;
col += printf("%2d) %-16s", signo, name);
if (col > 60) {
printf("\n");
col = 0;
}
}
printf("\n");
} else {
for(argv++; *argv; argv++) {
name = u_signal_names(*argv, &signo, -1);
if(name!=NULL)
printf("%s\n", name);
}
}
/* If they specified -l, were all done */
return EXIT_SUCCESS;
}
#ifdef CONFIG_KILLALL
/* The -q quiet option */
if(whichApp != KILL && argv[1][1]=='q' && argv[1][2]=='\0'){
quiet++;
argv++;
argc--;
if(argc<2 || argv[1][0] != '-'){
goto do_it_now;
}
}
#endif
if(!u_signal_names(argv[1]+1, &signo, 0))
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 (whichApp == KILL) {
/* 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++;
}
}
#ifdef CONFIG_KILLALL
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++;
}
}
#endif
return errors;
}
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