1  /* Execute program relative to a directory file descriptor.
       2     Copyright (C) 2021-2023 Free Software Foundation, Inc.
       3     This file is part of the GNU C Library.
       4  
       5     The GNU C Library is free software; you can redistribute it and/or
       6     modify it under the terms of the GNU Lesser General Public
       7     License as published by the Free Software Foundation; either
       8     version 2.1 of the License, or (at your option) any later version.
       9  
      10     The GNU C Library is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      13     Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public
      16     License along with the GNU C Library; if not, see
      17     <https://www.gnu.org/licenses/>.  */
      18  
      19  #include <errno.h>
      20  #include <stddef.h>
      21  #include <unistd.h>
      22  
      23  /* Replace the current process, executing PATH relative to difrd with
      24     arguments argv and environment envp.
      25     argv and envp are terminated by NULL pointers.  */
      26  int
      27  __execveat (int dirfd, const char *path, char *const argv[], char *const envp[],
      28              int flags)
      29  {
      30    if (path == NULL || argv == NULL || envp == NULL)
      31      {
      32        __set_errno (EINVAL);
      33        return -1;
      34      }
      35  
      36    __set_errno (ENOSYS);
      37    return -1;
      38  }
      39  stub_warning (execveat)
      40  
      41  weak_alias (__execveat, execveat)