/[path-sandbox]/trunk/sandbox_futils.c
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Contents of /trunk/sandbox_futils.c

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Revision 152 - (show annotations) (download) (as text)
Wed Jul 27 18:04:35 2005 UTC (9 years ago) by azarah
File MIME type: text/x-csrc
File size: 3664 byte(s)
Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
in libsandbox .. bug #100309.

1 /*
2 * Copyright (C) 2002 Brad House <brad@mainstreetsoftworks.com>
3 * Distributed under the terms of the GNU General Public License, v2 or later
4 * Author: Brad House <brad@mainstreetsoftworks.com>
5 *
6 * $Header$
7 *
8 */
9
10 #include <errno.h>
11 #include <stdio.h>
12 #include <stdlib.h>
13 #include <limits.h>
14 #include <string.h>
15 #include <sys/stat.h>
16 #include <unistd.h>
17 #include <fcntl.h>
18 #include <libgen.h>
19
20 #include "sandbox.h"
21 #include "config.h"
22
23 /* glibc modified getcwd() functions */
24 SB_STATIC char *egetcwd(char *, size_t);
25
26 SB_STATIC void get_sandbox_lib(char *path)
27 {
28 #ifdef SB_HAVE_64BIT_ARCH
29 snprintf(path, SB_PATH_MAX, "%s", LIB_NAME);
30 #else
31 snprintf(path, SB_PATH_MAX, "%s/%s", LIBSANDBOX_PATH, LIB_NAME);
32 if (0 >= exists(path)) {
33 snprintf(path, SB_PATH_MAX, "%s", LIB_NAME);
34 }
35 #endif
36 }
37
38 #ifdef OUTSIDE_LIBSANDBOX
39
40 SB_STATIC void get_sandbox_rc(char *path)
41 {
42 snprintf(path, SB_PATH_MAX, "%s/%s", SANDBOX_BASHRC_PATH, BASHRC_NAME);
43 }
44
45 SB_STATIC void get_sandbox_log(char *path)
46 {
47 char *sandbox_log_env = NULL;
48
49 sandbox_log_env = getenv(ENV_SANDBOX_LOG);
50
51 /* THIS CHUNK BREAK THINGS BY DOING THIS:
52 * SANDBOX_LOG=/tmp/sandbox-app-admin/superadduser-1.0.7-11063.log
53 */
54 if ((NULL != sandbox_log_env) &&
55 (NULL != strchr(sandbox_log_env, '/')))
56 sandbox_log_env = NULL;
57
58 snprintf(path, SB_PATH_MAX, "%s%s%s%s%d%s",
59 SANDBOX_LOG_LOCATION, LOG_FILE_PREFIX,
60 (sandbox_log_env == NULL ? "" : sandbox_log_env),
61 (sandbox_log_env == NULL ? "" : "-"),
62 getpid(), LOG_FILE_EXT);
63 }
64
65 SB_STATIC void get_sandbox_debug_log(char *path)
66 {
67 char *sandbox_debug_log_env = NULL;
68
69 sandbox_debug_log_env = getenv(ENV_SANDBOX_DEBUG_LOG);
70
71 /* THIS CHUNK BREAK THINGS BY DOING THIS:
72 * SANDBOX_DEBUG_LOG=/tmp/sandbox-app-admin/superadduser-1.0.7-11063.log
73 */
74 if ((NULL != sandbox_debug_log_env) &&
75 (NULL != strchr(sandbox_debug_log_env, '/')))
76 sandbox_debug_log_env = NULL;
77
78 snprintf(path, SB_PATH_MAX, "%s%s%s%s%d%s",
79 SANDBOX_LOG_LOCATION, DEBUG_LOG_FILE_PREFIX,
80 (sandbox_debug_log_env == NULL ? "" : sandbox_debug_log_env),
81 (sandbox_debug_log_env == NULL ? "" : "-"),
82 getpid(), LOG_FILE_EXT);
83 }
84
85 SB_STATIC int get_tmp_dir(char *path)
86 {
87 if (NULL == realpath(getenv(ENV_TMPDIR) ? getenv(ENV_TMPDIR)
88 : TMPDIR,
89 path)) {
90 if (NULL == realpath(TMPDIR, path))
91 return -1;
92 }
93
94 return 0;
95 }
96
97 #endif /* OUTSIDE_LIBSANDBOX */
98
99 SB_STATIC int exists(const char *pathname)
100 {
101 struct stat buf;
102 int retval;
103
104 if ((NULL == pathname) || (0 == strlen(pathname)))
105 return 0;
106
107 retval = lstat(pathname, &buf);
108 if (-1 != retval)
109 return 1;
110 /* Some or other error occurred */
111 if (ENOENT != errno)
112 return -1;
113
114 return 0;
115 }
116
117 #ifdef OUTSIDE_LIBSANDBOX
118
119 SB_STATIC int is_file(const char *pathname)
120 {
121 struct stat buf;
122 int retval;
123
124 if ((NULL == pathname) || (0 == strlen(pathname)))
125 return 0;
126
127 retval = lstat(pathname, &buf);
128 if ((-1 != retval) && (S_ISREG(buf.st_mode)))
129 return 1;
130 /* Some or other error occurred */
131 if ((-1 == retval) && (ENOENT != errno))
132 return -1;
133
134 return 0;
135 }
136
137 SB_STATIC int is_dir(const char *pathname, int follow_link)
138 {
139 struct stat buf;
140 int retval;
141
142 if ((NULL == pathname) || (0 == strlen(pathname)))
143 return 0;
144
145 retval = follow_link ? stat(pathname, &buf) : lstat(pathname, &buf);
146 if ((-1 != retval) && (S_ISDIR(buf.st_mode)))
147 return 1;
148 /* Some or other error occurred */
149 if ((-1 == retval) && (ENOENT != errno))
150 return -1;
151
152 return 0;
153 }
154
155 SB_STATIC long file_length(int fd)
156 {
157 long pos, len;
158
159 pos = lseek(fd, 0L, SEEK_CUR);
160 len = lseek(fd, 0L, SEEK_END);
161 lseek(fd, pos, SEEK_SET);
162
163 return (len);
164 }
165
166 #endif /* OUTSIDE_LIBSANDBOX */
167
168
169 // vim:noexpandtab noai:cindent ai

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