mklost+found.c revision e0ed7404719a9ddd2ba427a80db5365c8bad18c0 
1/*
2 * mklost+found.c	- Creates a directory lost+found on a mounted second
3 *			  extended file system
4 *
5 * Copyright (C) 1992, 1993  Remy Card <card@masi.ibp.fr>
6 *
7 * This file can be redistributed under the terms of the GNU General
8 * Public License
9 */
10
11/*
12 * History:
13 * 93/04/22	- Creation
14 */
15
16#include <errno.h>
17#include <fcntl.h>
18#include <stdio.h>
19#include <string.h>
20#include <unistd.h>
21#include <stdlib.h>
22#include <sys/param.h>
23#include <sys/stat.h>
24
25#include "ext2fs/ext2_fs.h"
26#include "../version.h"
27#include "nls-enable.h"
28
29#define LPF "lost+found"
30
31int main (int argc, char ** argv)
32{
33	char name [EXT2_NAME_LEN];
34	char path [sizeof (LPF) + 1 + 256];
35	struct stat st;
36	int i, j;
37	int d;
38
39#ifdef ENABLE_NLS
40	setlocale(LC_MESSAGES, "");
41	setlocale(LC_CTYPE, "");
42	bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
43	textdomain(NLS_CAT_NAME);
44#endif
45	fprintf (stderr, "mklost+found %s (%s)\n", E2FSPROGS_VERSION,
46		 E2FSPROGS_DATE);
47	if (argc != 1) {
48		(void)argv; /* avoid unused argument warning */
49		fprintf (stderr, "%s", _("Usage: mklost+found\n"));
50		exit(1);
51	}
52	if (mkdir (LPF, 0700) == -1) {
53		perror ("mkdir");
54		exit(1);
55	}
56
57	i = 0;
58	memset (name, 'x', 246);
59	do {
60		sprintf (name + 246, "%08d", i);
61		strcpy (path, LPF);
62		strcat (path, "/");
63		strcat (path, name);
64		if ((d = creat (path, 0644)) == -1) {
65			perror ("creat");
66			exit (1);
67		}
68		i++;
69		close (d);
70		if (stat (LPF, &st) == -1) {
71			perror ("stat");
72			exit (1);
73		}
74	} while (st.st_size <= (EXT2_NDIR_BLOCKS - 1) * st.st_blksize);
75	for (j = 0; j < i; j++) {
76		sprintf (name + 246, "%08d", j);
77		strcpy (path, LPF);
78		strcat (path, "/");
79		strcat (path, name);
80		if (unlink (path) == -1) {
81			perror ("unlink");
82			exit (1);
83		}
84	}
85	exit (0);
86}
87