1  /* Copyright (C) 1993-2023 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 <unistd.h>
      19  #include <hurd.h>
      20  #include <hurd/fd.h>
      21  #include <errno.h>
      22  
      23  /* Execute the file FD refers to, overlaying the running program image.  */
      24  
      25  int
      26  fexecve (int fd, char *const argv[], char *const envp[])
      27  {
      28    file_t file;
      29    error_t err;
      30    enum retry_type doretry;
      31    char retryname[1024];
      32  
      33    err = HURD_DPORT_USE (fd,
      34        __dir_lookup (port, "", O_EXEC, 0, &doretry, retryname, &file));
      35  
      36    if (! err && (doretry != FS_RETRY_NORMAL || retryname[0] != '\0'))
      37      err = EGRATUITOUS;
      38    if (err)
      39      return __hurd_fail(err);
      40  
      41    err = _hurd_exec_paths (__mach_task_self (), file, NULL, NULL, argv, envp);
      42    if (! err)
      43      err = EGRATUITOUS;
      44  
      45    __mach_port_deallocate (__mach_task_self (), file);
      46    return __hurd_fail (err);
      47  }