sbase/kill.c

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/* See LICENSE file for copyright and license details. */
#include <signal.h>
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#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
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#include <strings.h>
#include <unistd.h>
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#include <sys/wait.h>
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#include "util.h"
struct {
const char *name;
int sig;
} sigs[] = {
#define SIG(n) { #n, SIG##n }
SIG(ABRT), SIG(ALRM), SIG(BUS), SIG(CHLD), SIG(CONT), SIG(FPE), SIG(HUP),
SIG(ILL), SIG(INT), SIG(KILL), SIG(PIPE), SIG(QUIT), SIG(SEGV), SIG(STOP),
SIG(TERM), SIG(TSTP), SIG(TTIN), SIG(TTOU), SIG(USR1), SIG(USR2), SIG(URG),
#undef SIG
};
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static void
usage(void)
{
eprintf("usage: %s [-s signal] [pid...]\n"
" %s -l [signum]\n", argv0, argv0);
}
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int
main(int argc, char *argv[])
{
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bool lflag = false;
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char *end, *v;
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int sig = SIGTERM;
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pid_t pid;
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size_t i;
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ARGBEGIN {
case 'l':
lflag = true;
break;
case 's':
v = EARGF(usage());
sig = strtol(v, &end, 0);
if(*end == '\0')
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break;
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for(i = 0; i < LEN(sigs); i++) {
if(!strcasecmp(v, sigs[i].name)) {
sig = sigs[i].sig;
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break;
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}
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}
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if(i == LEN(sigs))
eprintf("%s: unknown signal\n", v);
break;
default:
usage();
} ARGEND;
if(argc < 1)
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usage();
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if(lflag) {
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sig = (argc > 0) ? 0 : estrtol(argv[0], 0);
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if(sig > 128)
sig = WTERMSIG(sig);
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for(i = 0; i < LEN(sigs); i++)
if(sigs[i].sig == sig || sig == 0)
putword(sigs[i].name);
putchar('\n');
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} else for(; argc > 0; argc--, argv++) {
pid = estrtol(argv[0], 0);
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if(kill(pid, sig) == -1)
eprintf("kill %d:", pid);
}
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return EXIT_SUCCESS;
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}
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