Introduction
Introduction Statistics Contact Development Disclaimer Help
fallocate.c - ubase - suckless linux base utils
git clone git://git.suckless.org/ubase
Log
Files
Refs
README
LICENSE
---
fallocate.c (987B)
---
1 /* See LICENSE file for copyright and license details. */
2 #include <sys/stat.h>
3
4 #include <fcntl.h>
5 #include <limits.h>
6 #include <stdint.h>
7 #include <stdio.h>
8 #include <stdlib.h>
9 #include <unistd.h>
10
11 #include "util.h"
12
13 static void
14 usage(void)
15 {
16 eprintf("usage: %s [-o num] -l num file ...\n", argv0);
17 }
18
19 int
20 main(int argc, char *argv[])
21 {
22 int fd, ret = 0;
23 off_t size = 0, offset = 0;
24
25 ARGBEGIN {
26 case 'l':
27 size = estrtonum(EARGF(usage()), 1, MIN(LLONG_MAX, SIZE_…
28 break;
29 case 'o':
30 offset = estrtonum(EARGF(usage()), 0, MIN(LLONG_MAX, SIZ…
31 break;
32 default:
33 usage();
34 } ARGEND;
35
36 if (!argc || !size)
37 usage();
38
39 for (; *argv; argc--, argv++) {
40 if ((fd = open(*argv, O_RDWR | O_CREAT, 0644)) < 0) {
41 weprintf("open %s:", *argv);
42 ret = 1;
43 } else if (posix_fallocate(fd, offset, size) < 0) {
44 weprintf("posix_fallocate %s:", *argv);
45 ret = 1;
46 }
47
48 if (fd >= 0 && close(fd) < 0) {
49 weprintf("close %s:", *argv);
50 ret = 1;
51 }
52 }
53
54 return ret;
55 }
You are viewing proxied material from suckless.org. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.