103 lines
2.1 KiB
C
103 lines
2.1 KiB
C
/* kill - send a signal to a process Author: Adri Koppes */
|
|
|
|
#include <sys/types.h>
|
|
#include <errno.h>
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
_PROTOTYPE(int main, (int argc, char **argv));
|
|
_PROTOTYPE(void usage, (void));
|
|
|
|
/* Table of signal names. */
|
|
struct signames {
|
|
char *name;
|
|
int sig;
|
|
} signames[] = {
|
|
{ "HUP", SIGHUP },
|
|
{ "INT", SIGINT },
|
|
{ "QUIT", SIGQUIT },
|
|
{ "ILL", SIGILL },
|
|
{ "TRAP", SIGTRAP },
|
|
{ "ABRT", SIGABRT },
|
|
{ "IOT", SIGIOT },
|
|
{ "FPE", SIGFPE },
|
|
{ "KILL", SIGKILL },
|
|
{ "USR1", SIGUSR1 },
|
|
{ "SEGV", SIGSEGV },
|
|
{ "USR2", SIGUSR2 },
|
|
{ "PIPE", SIGPIPE },
|
|
{ "ALRM", SIGALRM },
|
|
{ "TERM", SIGTERM },
|
|
{ "EMT", SIGEMT },
|
|
{ "BUS", SIGBUS },
|
|
{ "CHLD", SIGCHLD },
|
|
{ "CONT", SIGCONT },
|
|
{ "STOP", SIGSTOP },
|
|
{ "TSTP", SIGTSTP },
|
|
{ "TTIN", SIGTTIN },
|
|
{ "TTOU", SIGTTOU },
|
|
#ifdef SIGWINCH
|
|
{ "WINCH", SIGWINCH },
|
|
#endif
|
|
{ "VTALRM", SIGVTALRM },
|
|
{ "PROF", SIGPROF },
|
|
{ NULL, 0 }
|
|
};
|
|
|
|
int main(argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
pid_t proc;
|
|
int ex = 0, sig = SIGTERM;
|
|
char *end;
|
|
long l;
|
|
unsigned long ul;
|
|
struct sigaction sa;
|
|
int i, doit;
|
|
struct signames *snp;
|
|
|
|
if (argc > 1 && argv[1][0] == '-') {
|
|
sig = -1;
|
|
for (snp = signames; snp->name != NULL; snp++) { /* symbolic? */
|
|
if (strcmp(snp->name, argv[1] + 1) == 0) {
|
|
sig = snp->sig;
|
|
break;
|
|
}
|
|
}
|
|
if (sig < 0) { /* numeric? */
|
|
ul = strtoul(argv[1] + 1, &end, 10);
|
|
if (end == argv[1] + 1 || *end != 0 || ul >= _NSIG) usage();
|
|
sig = ul;
|
|
}
|
|
argv++;
|
|
argc--;
|
|
}
|
|
sa.sa_flags = 0;
|
|
sigemptyset(&sa.sa_mask);
|
|
sa.sa_handler = SIG_IGN; /* try not to kill yourself */
|
|
(void) sigaction(sig, &sa, (struct sigaction *) NULL);
|
|
|
|
for (doit = 0; doit <= 1; doit++) {
|
|
for (i = 1; i < argc; i++) {
|
|
l = strtoul(argv[i], &end, 10);
|
|
if (end == argv[i] || *end != 0 || (pid_t) l != l) usage();
|
|
proc = l;
|
|
if (doit && kill(proc, sig) < 0) {
|
|
fprintf(stderr, "kill: %d: %s\n",
|
|
proc, strerror(errno));
|
|
ex = 1;
|
|
}
|
|
}
|
|
}
|
|
return(ex);
|
|
}
|
|
|
|
void usage()
|
|
{
|
|
fprintf(stderr, "Usage: kill [-sig] pid\n");
|
|
exit(1);
|
|
}
|