139 lines
2.6 KiB
C
139 lines
2.6 KiB
C
/* vim: tabstop=4 shiftwidth=4 noexpandtab
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* This file is part of ToaruOS and is released under the terms
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* of the NCSA / University of Illinois License - see LICENSE.md
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* Copyright (C) 2013-2018 K. Lange
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*
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* kill - Send a signal to a process
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*
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* Supports signal names like any mature `kill` should.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.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 <errno.h>
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struct sig_def {
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int sig;
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const char * name;
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};
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struct sig_def signals[] = {
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{SIGHUP,"HUP"},
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{SIGINT,"INT"},
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{SIGQUIT,"QUIT"},
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{SIGILL,"ILL"},
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{SIGTRAP,"TRAP"},
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{SIGABRT,"ABRT"},
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{SIGEMT,"EMT"},
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{SIGFPE,"FPE"},
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{SIGKILL,"KILL"},
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{SIGBUS,"BUS"},
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{SIGSEGV,"SEGV"},
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{SIGSYS,"SYS"},
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{SIGPIPE,"PIPE"},
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{SIGALRM,"ALRM"},
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{SIGTERM,"TERM"},
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{SIGUSR1,"USR1"},
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{SIGUSR2,"USR2"},
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{SIGCHLD,"CHLD"},
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{SIGPWR,"PWR"},
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{SIGWINCH,"WINCH"},
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{SIGURG,"URG"},
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{SIGPOLL,"POLL"},
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{SIGSTOP,"STOP"},
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{SIGTSTP,"TSTP"},
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{SIGCONT,"CONT"},
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{SIGTTIN,"TTIN"},
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{SIGTTOUT,"TTOUT"},
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{SIGVTALRM,"VTALRM"},
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{SIGPROF,"PROF"},
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{SIGXCPU,"XCPU"},
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{SIGXFSZ,"XFSZ"},
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{SIGWAITING,"WAITING"},
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{SIGDIAF,"DIAF"},
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{SIGHATE,"HATE"},
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{SIGWINEVENT,"WINEVENT"},
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{SIGCAT,"CAT"},
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{0,NULL},
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};
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void usage(char * argv[]) {
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printf(
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"%s - send a signal to another process\n"
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"\n"
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"usage: %s [-\033[3mx\033[0m] \033[3mprocess\033[0m\n"
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"\n"
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" -h --help \033[3mShow this help message.\033[0m\n"
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" -\033[3mx\033[0m \033[3mSignal number to send\033[0m\n"
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"\n",
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argv[0], argv[0]);
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}
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int main(int argc, char * argv[]) {
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int signum = SIGKILL;
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int pid = 0;
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int i = 1;
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if (argc < 2) {
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usage(argv);
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return 1;
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}
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if (argv[1][0] == '-') {
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signum = -1;
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if (strlen(argv[1]+1) > 3 && strstr(argv[1]+1,"SIG") == (argv[1]+1)) {
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struct sig_def * s = signals;
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while (s->name) {
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if (!strcmp(argv[1]+4,s->name)) {
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signum = s->sig;
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break;
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}
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s++;
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}
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} else {
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if (!isdigit(argv[1][1])) {
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struct sig_def * s = signals;
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while (s->name) {
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if (!strcmp(argv[1]+1,s->name)) {
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signum = s->sig;
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break;
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}
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s++;
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}
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} else {
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signum = atoi(argv[1]+1);
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}
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}
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if (signum == -1) {
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fprintf(stderr,"%s: %s: invalid signal specification\n",argv[0],argv[1]+1);
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return 1;
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}
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i++;
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}
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if (i == argc) {
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usage(argv);
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return 1;
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}
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int retval = 0;
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for (; i < argc; ++i) {
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pid = atoi(argv[i]);
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if (pid) {
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if (kill(pid, signum) < 0) {
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fprintf(stderr, "%s: (%d) %s\n", argv[0], pid, strerror(errno));
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retval = 1;
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}
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} else {
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fprintf(stderr, "%s: invalid pid (%s)\n", argv[0], argv[i]);
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retval = 1;
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}
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}
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return retval;
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}
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