lib/util/setid.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    setXXid() functions for Samba.
   4    Copyright (C) Jeremy Allison 2012
   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 3 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
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef AUTOCONF_TEST
  21 #include "replace.h"
  22 #include "system/passwd.h"
  23 #include "include/includes.h"
  24
  25 #ifdef UID_WRAPPER_REPLACE
  26
  27 #ifdef samba_seteuid
  28 #undef samba_seteuid
  29 #endif
  30
  31 #ifdef samba_setreuid
  32 #undef samba_setreuid
  33 #endif
  34
  35 #ifdef samba_setresuid
  36 #undef samba_setresuid
  37 #endif
  38
  39 #ifdef samba_setegid
  40 #undef samba_setegid
  41 #endif
  42
  43 #ifdef samba_setregid
  44 #undef samba_setregid
  45 #endif
  46
  47 #ifdef samba_setresgid
  48 #undef samba_setresgid
  49 #endif
  50
  51 #ifdef samba_setgroups
  52 #undef samba_setgroups
  53 #endif
  54
  55 /* uid_wrapper will have redefined these. */
  56 int samba_setresuid(uid_t ruid, uid_t euid, uid_t suid);
  57 int samba_setresgid(gid_t rgid, gid_t egid, gid_t sgid);
  58 int samba_setreuid(uid_t ruid, uid_t euid);
  59 int samba_setregid(gid_t rgid, gid_t egid);
  60 int samba_seteuid(uid_t euid);
  61 int samba_setegid(gid_t egid);
  62 int samba_setuid(uid_t uid);
  63 int samba_setgid(gid_t gid);
  64 int samba_setuidx(int flags, uid_t uid);
  65 int samba_setgidx(int flags, gid_t gid);
  66 int samba_setgroups(size_t setlen, const gid_t *gidset);
  67
  68 #endif
  69 #endif
  70
  71 #include "../lib/util/setid.h"
  72
  73 /* All the setXX[ug]id functions and setgroups Samba uses. */
  74 int samba_setresuid(uid_t ruid, uid_t euid, uid_t suid)
  75 {
  76 #if defined(HAVE_SETRESUID)
  77         return setresuid(ruid, euid, suid);
  78 #else
  79         errno = ENOSYS;
  80         return -1;
  81 #endif
  82 }
  83
  84 int samba_setresgid(gid_t rgid, gid_t egid, gid_t sgid)
  85 {
  86 #if defined(HAVE_SETRESGID)
  87         return setresgid(rgid, egid, sgid);
  88 #else
  89         errno = ENOSYS;
  90         return -1;
  91 #endif
  92 }
  93
  94 int samba_setreuid(uid_t ruid, uid_t euid)
  95 {
  96 #if defined(HAVE_SETREUID)
  97         return setreuid(ruid, euid);
  98 #else
  99         errno = ENOSYS;
 100         return -1;
 101 #endif
 102 }
 103
 104 int samba_setregid(gid_t rgid, gid_t egid)
 105 {
 106 #if defined(HAVE_SETREGID)
 107         return setregid(rgid, egid);
 108 #else
 109         errno = ENOSYS;
 110         return -1;
 111 #endif
 112 }
 113
 114 int samba_seteuid(uid_t euid)
 115 {
 116 #if defined(HAVE_SETEUID)
 117         return seteuid(euid);
 118 #else
 119         errno = ENOSYS;
 120         return -1;
 121 #endif
 122 }
 123
 124 int samba_setegid(gid_t egid)
 125 {
 126 #if defined(HAVE_SETEGID)
 127         return setegid(egid);
 128 #else
 129         errno = ENOSYS;
 130         return -1;
 131 #endif
 132 }
 133
 134 int samba_setuid(uid_t uid)
 135 {
 136 #if defined(HAVE_SETUID)
 137         return setuid(uid);
 138 #else
 139         errno = ENOSYS;
 140         return -1;
 141 #endif
 142 }
 143
 144 int samba_setgid(gid_t gid)
 145 {
 146 #if defined(HAVE_SETGID)
 147         return setgid(gid);
 148 #else
 149         errno = ENOSYS;
 150         return -1;
 151 #endif
 152 }
 153
 154 int samba_setuidx(int flags, uid_t uid)
 155 {
 156 #if defined(HAVE_SETUIDX)
 157         return setuidx(flags, uid);
 158 #else
 159         errno = ENOSYS;
 160         return -1;
 161 #endif
 162 }
 163
 164 int samba_setgidx(int flags, gid_t gid)
 165 {
 166 #if defined(HAVE_SETGIDX)
 167         return setgidx(flags, gid);
 168 #else
 169         errno = ENOSYS;
 170         return -1;
 171 #endif
 172 }
 173
 174 int samba_setgroups(size_t setlen, const gid_t *gidset)
 175 {
 176 #if defined(HAVE_SETGROUPS)
 177         return setgroups(setlen, gidset);
 178 #else
 179         errno = ENOSYS;
 180         return -1;
 181 #endif
 182 }