mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-13 00:30:07 +00:00
08c7f6b008
2000-05-29 Ulrich Drepper <drepper@redhat.com> * posix/Makefile (tests): Add tst-spawn. (tst-spawn-ARGS): New variable. * posix/tst-spawn.c: New file. * posix/spawn_faction_addclose.c: Correctly account for new entry. * posix/spawn_faction_adddup2.c: Likewise. * posix/spawn_faction_addopen.c: Likewise. * posix/spawni.c: Correctly test for success of dup2 calls. * posix/tst-preadwrite.c: Check success of malloc call.
54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/* Copyright (C) 2000 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <errno.h>
|
|
#include <spawn.h>
|
|
#include <unistd.h>
|
|
|
|
#include "spawn_int.h"
|
|
|
|
/* Add an action to FILE-ACTIONS which tells the implementation to call
|
|
`close' for the given file descriptor during the `spawn' call. */
|
|
int
|
|
posix_spawn_file_actions_addclose (posix_spawn_file_actions_t *file_actions,
|
|
int fd)
|
|
{
|
|
int maxfd = sysconf (_SC_OPEN_MAX);
|
|
struct __spawn_action *rec;
|
|
|
|
/* Test for the validity of the file descriptor. */
|
|
if (fd < 0 || fd >= maxfd)
|
|
return EBADF;
|
|
|
|
/* Allocate more memory of needed. */
|
|
if (file_actions->__used == file_actions->__allocated
|
|
&& __posix_spawn_file_actions_realloc (file_actions) != 0)
|
|
/* THis can only mean we ran out of memory. */
|
|
return ENOMEM;
|
|
|
|
/* Add the new value. */
|
|
rec = &file_actions->__actions[file_actions->__used];
|
|
rec->tag = spawn_do_close;
|
|
rec->action.open_action.fd = fd;
|
|
|
|
/* Account for the new entry. */
|
|
++file_actions->__used;
|
|
|
|
return 0;
|
|
}
|