blob: 9b1c8f4a13960b10063f67959000f32bd1b7b1f1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
/* SPDX-License-Identifier: GPL-2.0 */
#include <sys/wait.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include "utils.h"
#include "namespace.h"
int cmd_exec(const char *cmd, char **argv, bool do_fork,
int (*setup)(void *), void *arg)
{
fflush(stdout);
if (do_fork) {
int status;
pid_t pid;
pid = fork();
if (pid < 0) {
perror("fork");
exit(1);
}
if (pid != 0) {
/* Parent */
if (waitpid(pid, &status, 0) < 0) {
perror("waitpid");
exit(1);
}
if (WIFEXITED(status)) {
return WEXITSTATUS(status);
}
exit(1);
}
}
if (setup && setup(arg))
return -1;
if (execvp(cmd, argv) < 0)
fprintf(stderr, "exec of \"%s\" failed: %s\n",
cmd, strerror(errno));
_exit(1);
}
|
