1  /* Add tcsetpgrp to the file action list for posix_spawn.
       2     Copyright (C) 2022-2023 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 <spawn.h>
      21  #include <unistd.h>
      22  #include <spawn_int.h>
      23  
      24  int
      25  __posix_spawn_file_actions_addtcsetpgrp_np (posix_spawn_file_actions_t
      26  					    *file_actions, int tcfd)
      27  {
      28    struct __spawn_action *rec;
      29  
      30    if (!__spawn_valid_fd (tcfd))
      31      return EBADF;
      32  
      33    /* Allocate more memory if needed.  */
      34    if (file_actions->__used == file_actions->__allocated
      35        && __posix_spawn_file_actions_realloc (file_actions) != 0)
      36      /* This can only mean we ran out of memory.  */
      37      return ENOMEM;
      38  
      39    /* Add the new value.  */
      40    rec = &file_actions->__actions[file_actions->__used];
      41    rec->tag = spawn_do_tcsetpgrp;
      42    rec->action.setpgrp_action.fd = tcfd;
      43  
      44    /* Account for the new entry.  */
      45    ++file_actions->__used;
      46  
      47    return 0;
      48  }
      49  weak_alias (__posix_spawn_file_actions_addtcsetpgrp_np,
      50  	    posix_spawn_file_actions_addtcsetpgrp_np)