mirror of https://github.com/sipwise/klish.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
124 lines
2.3 KiB
124 lines
2.3 KiB
/*
|
|
* sigexec.c
|
|
*
|
|
* Programm to execute processes with unblocked signals.
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif /* HAVE_CONFIG_H */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
|
|
#if WITH_INTERNAL_GETOPT
|
|
#include "libc/getopt.h"
|
|
#else
|
|
#ifdef HAVE_GETOPT_H
|
|
#include <getopt.h>
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef VERSION
|
|
#define VERSION 1.5.6
|
|
#endif
|
|
#define QUOTE(t) #t
|
|
#define version(v) printf("%s\n", v)
|
|
|
|
static void help(int status, const char *argv0);
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
char **child_argv;
|
|
sigset_t sigs;
|
|
|
|
static const char *shortopts = "+hv";
|
|
#ifdef HAVE_GETOPT_LONG
|
|
static const struct option longopts[] = {
|
|
{"help", 0, NULL, 'h'},
|
|
{"version", 0, NULL, 'v'},
|
|
{NULL, 0, NULL, 0}
|
|
};
|
|
#endif
|
|
|
|
while(1) {
|
|
int opt;
|
|
#ifdef HAVE_GETOPT_LONG
|
|
opt = getopt_long(argc, argv, shortopts, longopts, NULL);
|
|
#else
|
|
opt = getopt(argc, argv, shortopts);
|
|
#endif
|
|
if (-1 == opt)
|
|
break;
|
|
switch (opt) {
|
|
case 0:
|
|
break;
|
|
case 'h':
|
|
help(0, argv[0]);
|
|
exit(0);
|
|
break;
|
|
case 'v':
|
|
version(VERSION);
|
|
exit(0);
|
|
break;
|
|
default:
|
|
help(1, argv[0]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
child_argv = &argv[optind];
|
|
/* Check user command */
|
|
if (! child_argv[0]) {
|
|
fprintf(stderr, "Error: Nothing to execute.\n");
|
|
return 1;
|
|
}
|
|
|
|
/* Unblock signals */
|
|
sigemptyset(&sigs);
|
|
sigprocmask(SIG_SETMASK, &sigs, NULL);
|
|
|
|
/* Execute user command */
|
|
/* fprintf(stderr, "%s %s %s\n", child_argv[0], child_argv[1], child_argv[2]); */
|
|
if (execvp(child_argv[0], child_argv) < 0) {
|
|
fprintf(stderr, "Error: Cannot execute %s: %s\n",
|
|
child_argv[0], strerror(errno));
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*--------------------------------------------------------- */
|
|
/* Print help message */
|
|
static void help(int status, const char *argv0)
|
|
{
|
|
const char *name = NULL;
|
|
|
|
if (!argv0)
|
|
return;
|
|
|
|
/* Find the basename */
|
|
name = strrchr(argv0, '/');
|
|
if (name)
|
|
name++;
|
|
else
|
|
name = argv0;
|
|
|
|
if (status != 0) {
|
|
fprintf(stderr, "Try `%s -h' for more information.\n",
|
|
name);
|
|
} else {
|
|
printf("Usage: %s [options] -- <command to execute>\n", name);
|
|
printf("Utility to execute process with unblocked signals.\n");
|
|
printf("Options:\n");
|
|
printf("\t-v, --version\tPrint utility version.\n");
|
|
printf("\t-h, --help\tPrint this help.\n");
|
|
}
|
|
}
|