blob: 08df36799721d51c4e608fcf27d4b18a6beca52d (
plain) (
blame)
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
|
#include <unistd.h> // execvp, fork
#include <stdio.h> // printf
#include <sys/wait.h> // wait
#include <fcntl.h> // open, O_WRONLY
int main(int argc, char* argv[]) {
if (argc < 2) return 1;
pid_t fpid = fork();
if (fpid == 0) {
int f = open(argv[argc-1], O_WRONLY | O_TRUNC | O_CREAT, 0755);
if (f < 0) {
perror("open");
return 2;
}
dup2(f, 1);
close(f);
char* args[argc-1];
for (int i = 1; i < argc - 1; i++)
args[i-1] = argv[i];
args[argc-2] = NULL;
execvp(argv[1], args);
}
else {
int status;
wait(&status);
printf("%d %d\n", fpid, status);
}
}
|
