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
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2009-2017 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* This is an open source non-commercial project. Dear PVS-Studio, please check it.
* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
*/
#include <config.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_STDBOOL_H
# include <stdbool.h>
#else
# include "compat/stdbool.h"
#endif /* HAVE_STDBOOL_H */
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include "sudo_compat.h"
#include "sudo_fatal.h"
#include "sudo_gettext.h"
#include "sudo_debug.h"
#include "sudo_util.h"
/*
* Create any parent directories needed by path (but not path itself).
* Note that path is modified but is restored before it returns.
*/
bool
sudo_mkdir_parents_v1(char *path, uid_t uid, gid_t gid, mode_t mode, bool quiet)
{
char *slash = path;
debug_decl(sudo_mkdir_parents, SUDO_DEBUG_UTIL);
/* cppcheck-suppress nullPointerRedundantCheck */
while ((slash = strchr(slash + 1, '/')) != NULL) {
struct stat sb;
int dfd;
*slash = '\0';
sudo_debug_printf(SUDO_DEBUG_DEBUG|SUDO_DEBUG_LINENO,
"mkdir %s, mode 0%o, uid %d, gid %d", path, (unsigned int)mode,
(int)uid, (int)gid);
reopen:
dfd = open(path, O_RDONLY|O_NONBLOCK);
if (dfd == -1) {
if (errno != ENOENT) {
if (!quiet)
sudo_warn(U_("unable to open %s"), path);
goto bad;
}
if (mkdir(path, mode) == 0) {
if (uid != (uid_t)-1 && gid != (gid_t)-1) {
if (chown(path, uid, gid) != 0) {
sudo_debug_printf(SUDO_DEBUG_ERROR|SUDO_DEBUG_ERRNO,
"%s: unable to chown %d:%d %s", __func__,
(int)uid, (int)gid, path);
}
}
} else {
if (errno == EEXIST)
goto reopen;
if (!quiet)
sudo_warn(U_("unable to mkdir %s"), path);
goto bad;
}
} else {
/* Already exists, make sure it is a directory. */
int rc = fstat(dfd, &sb);
close(dfd);
if (rc != 0) {
if (!quiet)
sudo_warn(U_("unable to stat %s"), path);
goto bad;
}
if (!S_ISDIR(sb.st_mode)) {
if (!quiet)
sudo_warnx(U_("%s exists but is not a directory (0%o)"),
path, (unsigned int) sb.st_mode);
goto bad;
}
}
*slash = '/';
}
debug_return_bool(true);
bad:
/* We must restore the path before we return. */
*slash = '/';
debug_return_bool(false);
}
|
