busybox/procps/kill.c

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#include "internal.h"
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
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const char kill_usage[] = "kill [-signal] process-id [process-id ...]\n";
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struct signal_name {
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const char *name;
int number;
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};
const struct signal_name signames[] = {
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{"HUP", SIGHUP},
{"INT", SIGINT},
{"QUIT", SIGQUIT},
{"ILL", SIGILL},
{"TRAP", SIGTRAP},
{"ABRT", SIGABRT},
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#ifndef __alpha__
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{"IOT", SIGIOT},
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#endif
#if defined(sparc) || defined(__alpha__)
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{"EMT", SIGEMT},
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#else
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{"BUS", SIGBUS},
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#endif
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{"FPE", SIGFPE},
{"KILL", SIGKILL},
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#if defined(sparc) || defined(__alpha__)
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{"BUS", SIGBUS},
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#else
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{"USR1", SIGUSR1},
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#endif
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{"SEGV", SIGSEGV},
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#if defined(sparc) || defined(__alpha__)
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{"SYS", SIGSYS},
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#else
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{"USR2", SIGUSR2},
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#endif
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{"PIPE", SIGPIPE},
{"ALRM", SIGALRM},
{"TERM", SIGTERM},
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#if defined(sparc) || defined(__alpha__)
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{"URG", SIGURG},
{"STOP", SIGSTOP},
{"TSTP", SIGTSTP},
{"CONT", SIGCONT},
{"CHLD", SIGCHLD},
{"TTIN", SIGTTIN},
{"TTOU", SIGTTOU},
{"IO", SIGIO},
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# ifndef __alpha__
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{"POLL", SIGIO},
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# endif
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{"XCPU", SIGXCPU},
{"XFSZ", SIGXFSZ},
{"VTALRM", SIGVTALRM},
{"PROF", SIGPROF},
{"WINCH", SIGWINCH},
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# ifdef __alpha__
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{"INFO", SIGINFO},
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# else
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{"LOST", SIGLOST},
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# endif
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{"USR1", SIGUSR1},
{"USR2", SIGUSR2},
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#else
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{"STKFLT", SIGSTKFLT},
{"CHLD", SIGCHLD},
{"CONT", SIGCONT},
{"STOP", SIGSTOP},
{"TSTP", SIGTSTP},
{"TTIN", SIGTTIN},
{"TTOU", SIGTTOU},
{"URG", SIGURG},
{"XCPU", SIGXCPU},
{"XFSZ", SIGXFSZ},
{"VTALRM", SIGVTALRM},
{"PROF", SIGPROF},
{"WINCH", SIGWINCH},
{"IO", SIGIO},
{"POLL", SIGPOLL},
{"PWR", SIGPWR},
{"UNUSED", SIGUNUSED},
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#endif
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{0, 0}
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};
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extern int kill_main (int argc, char **argv)
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{
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int had_error = 0;
int sig = SIGTERM;
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if (argv[1][0] == '-') {
if (argv[1][1] >= '0' && argv[1][1] <= '9') {
sig = atoi (&argv[1][1]);
if (sig < 0 || sig >= NSIG)
goto end;
} else {
const struct signal_name *s = signames;
for (;;) {
if (strcmp (s->name, &argv[1][1]) == 0) {
sig = s->number;
break;
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}
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s++;
if (s->name == 0)
goto end;
}
}
argv++;
argc--;
}
while (argc > 1) {
int pid;
if (argv[1][0] < '0' || argv[1][0] > '9')
goto end;
pid = atoi (argv[1]);
if (kill (pid, sig) != 0) {
had_error = 1;
perror (argv[1]);
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}
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argv++;
argc--;
}
if (had_error) {
end:
fprintf(stderr, "Usage: %s\n", kill_usage);
exit ( FALSE);
}
exit (TRUE);
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}