1  /* Copyright (C) 1998-2023 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, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <errno.h>
      19  #include <unistd.h>
      20  #include <setxid.h>
      21  
      22  
      23  int
      24  seteuid (uid_t uid)
      25  {
      26    int result;
      27  
      28    if (uid == (uid_t) ~0)
      29      return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
      30  
      31  #ifdef __NR_setresuid32
      32    result = INLINE_SETXID_SYSCALL (setresuid32, 3, -1, uid, -1);
      33  #else
      34    result = INLINE_SETXID_SYSCALL (setresuid, 3, -1, uid, -1);
      35  #endif
      36  
      37    return result;
      38  }
      39  #ifndef seteuid
      40  libc_hidden_def (seteuid)
      41  #endif