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
|
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/stat.h>
char *progname;
static __noreturn usage(void)
{
fprintf(stderr, "Usage: %s link\n", progname);
exit(1);
}
int main(int argc, char *argv[])
{
char *name, *link_name = NULL;
size_t max_siz = 128;
progname = *argv++;
name = *argv++;
if (!name)
usage();
link_name = malloc(max_siz);
if (!link_name) {
perror("malloc");
exit(1);
}
if (readlink(name, link_name, max_siz) == -1)
exit(1);
printf("%s\n", link_name);
exit(0);
}
|
