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Commit | Line | Data |
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37be9888 | 1 | /* |
b8ae064d | 2 | * Copyright (C) 1996-2023 The Squid Software Foundation and contributors |
37be9888 AJ |
3 | * |
4 | * Squid software is distributed under GPLv2+ license and includes | |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
7 | */ | |
8 | ||
f7f3304a | 9 | #include "squid.h" |
27bc2077 | 10 | #include "compat/initgroups.h" |
e3d74828 | 11 | |
12 | #if HAVE_GRP_H | |
13 | #include <grp.h> | |
14 | #endif | |
e3d74828 | 15 | #if HAVE_UNISTD_H |
16 | #include <unistd.h> | |
17 | #endif | |
18 | #if HAVE_STRING_H | |
19 | #include <string.h> | |
20 | #endif | |
21 | #if HAVE_STRINGS_H | |
22 | #include <strings.h> | |
23 | #endif | |
24 | #if HAVE_LIMITS_H | |
25 | #include <limits.h> | |
26 | #endif | |
27 | ||
28 | int initgroups(const char *name, gid_t basegid) | |
29 | { | |
32d002cb | 30 | #if HAVE_SETGROUPS |
e3d74828 | 31 | #ifndef NGROUPS_MAX |
32 | #define NGROUPS_MAX 16 | |
33 | #endif | |
34 | ||
35 | gid_t groups[NGROUPS_MAX]; | |
36 | struct group *g; | |
37 | int index = 0; | |
38 | ||
39 | setgrent(); | |
40 | ||
41 | groups[index++] = basegid; | |
42 | ||
43 | while (index < NGROUPS_MAX && ((g = getgrent()) != NULL)) { | |
26ac0430 AJ |
44 | if (g->gr_gid != basegid) { |
45 | char **names; | |
e3d74828 | 46 | |
26ac0430 | 47 | for (names = g->gr_mem; *names != NULL; ++names) { |
e3d74828 | 48 | |
26ac0430 AJ |
49 | if (!strcmp(*names, name)) |
50 | groups[index++] = g->gr_gid; | |
e3d74828 | 51 | |
26ac0430 AJ |
52 | } |
53 | } | |
e3d74828 | 54 | } |
55 | ||
56 | endgrent(); | |
57 | ||
58 | return setgroups(index, groups); | |
59 | ||
60 | #else | |
61 | ||
62 | return 0; | |
63 | ||
64 | #endif /* def HAVE_SETGROUPS */ | |
65 | } | |
66 |