sysdeps/unix/sysv/aix/setreuid.c

   1 /* Copyright (C) 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <unistd.h>
  20
  21 #define ID_EFFECTIVE    0x01
  22 #define ID_REAL         0x02
  23
  24
  25 extern int setuidx (int mask, uid_t uid);
  26
  27 int
  28 __setreuid (uid_t ruid, uid_t euid)
  29 {
  30   int res;
  31
  32   if (ruid == euid)
  33     return setuidx (ID_EFFECTIVE | ID_REAL, euid);
  34
  35   res = setuidx (ID_REAL, ruid);
  36   if (res == 0)
  37     res = setuidx (ID_EFFECTIVE, euid);
  38
  39   return res;
  40 }
  41 strong_alias (__setreuid, setreuid)