blob: d059584fc6c72f08d8ec74daaf82a18033d0cd6d (
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
47
48
49
50
51
52
53
54
|
/* See LICENSE file for copyright and license details. */
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s [-fn] path\n", argv0);
}
int
main(int argc, char *argv[])
{
char buf[PATH_MAX];
ssize_t n;
int nflag = 0, fflag = 0;
ARGBEGIN {
case 'f':
fflag = ARGC();
break;
case 'n':
nflag = 1;
break;
default:
usage();
} ARGEND
if (argc != 1)
usage();
if (strlen(argv[0]) >= PATH_MAX)
eprintf("path too long\n");
if (fflag) {
if (!realpath(argv[0], buf))
eprintf("realpath %s:", argv[0]);
} else {
if ((n = readlink(argv[0], buf, PATH_MAX - 1)) < 0)
eprintf("readlink %s:", argv[0]);
buf[n] = '\0';
}
fputs(buf, stdout);
if (!nflag)
putchar('\n');
return fshut(stdout, "<stdout>");
}
|
