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author | netblue30 <netblue30@yahoo.com> | 2017-09-25 07:38:01 -0400 |
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committer | netblue30 <netblue30@yahoo.com> | 2017-09-25 07:38:01 -0400 |
commit | a6341b904c08b1feb51e264ab487d1f125222a10 (patch) | |
tree | 35ea50b8c8e561b710272a0e8ae9418541a32925 /src/firecfg/util.c | |
parent | Remove whitelist from pinta (diff) | |
download | firejail-a6341b904c08b1feb51e264ab487d1f125222a10.tar.gz firejail-a6341b904c08b1feb51e264ab487d1f125222a10.tar.zst firejail-a6341b904c08b1feb51e264ab487d1f125222a10.zip |
disable DBus activation in firecfg
Diffstat (limited to 'src/firecfg/util.c')
-rw-r--r-- | src/firecfg/util.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/src/firecfg/util.c b/src/firecfg/util.c new file mode 100644 index 000000000..4520e75e8 --- /dev/null +++ b/src/firecfg/util.c | |||
@@ -0,0 +1,86 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2014-2017 Firejail Authors | ||
3 | * | ||
4 | * This file is part of firejail project | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License as published by | ||
8 | * the Free Software Foundation; either version 2 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
14 | * GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License along | ||
17 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
18 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | ||
19 | */ | ||
20 | |||
21 | #include "firecfg.h" | ||
22 | |||
23 | // return 1 if the program is found | ||
24 | static int find(const char *program, const char *directory) { | ||
25 | int retval = 0; | ||
26 | |||
27 | char *fname; | ||
28 | if (asprintf(&fname, "/%s/%s", directory, program) == -1) | ||
29 | errExit("asprintf"); | ||
30 | |||
31 | struct stat s; | ||
32 | if (stat(fname, &s) == 0) { | ||
33 | if (arg_debug) | ||
34 | printf("found %s in directory %s\n", program, directory); | ||
35 | retval = 1; | ||
36 | } | ||
37 | |||
38 | free(fname); | ||
39 | return retval; | ||
40 | } | ||
41 | |||
42 | |||
43 | // return 1 if program is installed on the system | ||
44 | int which(const char *program) { | ||
45 | // check some well-known paths | ||
46 | if (find(program, "/bin") || find(program, "/usr/bin") || | ||
47 | find(program, "/sbin") || find(program, "/usr/sbin") || | ||
48 | find(program, "/usr/games")) | ||
49 | return 1; | ||
50 | |||
51 | // check environment | ||
52 | char *path1 = getenv("PATH"); | ||
53 | if (path1) { | ||
54 | char *path2 = strdup(path1); | ||
55 | if (!path2) | ||
56 | errExit("strdup"); | ||
57 | |||
58 | // use path2 to count the entries | ||
59 | char *ptr = strtok(path2, ":"); | ||
60 | while (ptr) { | ||
61 | if (find(program, ptr)) { | ||
62 | free(path2); | ||
63 | return 1; | ||
64 | } | ||
65 | ptr = strtok(NULL, ":"); | ||
66 | } | ||
67 | free(path2); | ||
68 | } | ||
69 | |||
70 | return 0; | ||
71 | } | ||
72 | |||
73 | // return 1 if the file is a link | ||
74 | int is_link(const char *fname) { | ||
75 | assert(fname); | ||
76 | if (*fname == '\0') | ||
77 | return 0; | ||
78 | |||
79 | struct stat s; | ||
80 | if (lstat(fname, &s) == 0) { | ||
81 | if (S_ISLNK(s.st_mode)) | ||
82 | return 1; | ||
83 | } | ||
84 | |||
85 | return 0; | ||
86 | } | ||