glibc/posix/spawn_faction_adddup2.c
Paul Eggert 2b778ceb40 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master
2021-01-02 12:17:34 -08:00

54 lines
1.8 KiB
C

/* Copyright (C) 2000-2021 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#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
`dup2' for the given file descriptors during the `spawn' call. */
int
__posix_spawn_file_actions_adddup2 (posix_spawn_file_actions_t *file_actions,
int fd, int newfd)
{
struct __spawn_action *rec;
if (!__spawn_valid_fd (fd) || !__spawn_valid_fd (newfd))
return EBADF;
/* Allocate more memory if 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_dup2;
rec->action.dup2_action.fd = fd;
rec->action.dup2_action.newfd = newfd;
/* Account for the new entry. */
++file_actions->__used;
return 0;
}
weak_alias (__posix_spawn_file_actions_adddup2,
posix_spawn_file_actions_adddup2)