1 /* $NetBSD: libdm-file.c,v 1.1.1.1 2008/12/22 00:18:33 haad Exp $ */
2
3 /*
4 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
5 * Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
6 *
7 * This file is part of the device-mapper userspace tools.
8 *
9 * This copyrighted material is made available to anyone wishing to use,
10 * modify, copy, or redistribute it subject to the terms and conditions
11 * of the GNU Lesser General Public License v.2.1.
12 *
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this program; if not, write to the Free Software Foundation,
15 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
16 */
17
18 #include "dmlib.h"
19
20 #include <fcntl.h>
21 #include <dirent.h>
22
_create_dir_recursive(const char * dir)23 static int _create_dir_recursive(const char *dir)
24 {
25 char *orig, *s;
26 int rc, r = 0;
27
28 log_verbose("Creating directory \"%s\"", dir);
29 /* Create parent directories */
30 orig = s = dm_strdup(dir);
31 while ((s = strchr(s, '/')) != NULL) {
32 *s = '\0';
33 if (*orig) {
34 rc = mkdir(orig, 0777);
35 if (rc < 0 && errno != EEXIST) {
36 if (errno != EROFS)
37 log_sys_error("mkdir", orig);
38 goto out;
39 }
40 }
41 *s++ = '/';
42 }
43
44 /* Create final directory */
45 rc = mkdir(dir, 0777);
46 if (rc < 0 && errno != EEXIST) {
47 if (errno != EROFS)
48 log_sys_error("mkdir", orig);
49 goto out;
50 }
51
52 r = 1;
53 out:
54 dm_free(orig);
55 return r;
56 }
57
dm_create_dir(const char * dir)58 int dm_create_dir(const char *dir)
59 {
60 struct stat info;
61
62 if (!*dir)
63 return 1;
64
65 if (stat(dir, &info) < 0)
66 return _create_dir_recursive(dir);
67
68 if (S_ISDIR(info.st_mode))
69 return 1;
70
71 log_error("Directory \"%s\" not found", dir);
72 return 0;
73 }
74
dm_fclose(FILE * stream)75 int dm_fclose(FILE *stream)
76 {
77 int prev_fail = ferror(stream);
78 int fclose_fail = fclose(stream);
79
80 /* If there was a previous failure, but fclose succeeded,
81 clear errno, since ferror does not set it, and its value
82 may be unrelated to the ferror-reported failure. */
83 if (prev_fail && !fclose_fail)
84 errno = 0;
85
86 return prev_fail || fclose_fail ? EOF : 0;
87 }
88