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65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/* Test posix_spawn_file_actions_addclose() function.
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Copyright (C) 2011-2017 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include <spawn.h>
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#include "signature.h"
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SIGNATURE_CHECK (posix_spawn_file_actions_addclose, int,
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(posix_spawn_file_actions_t *, int));
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#include <errno.h>
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#include <limits.h>
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#include <unistd.h>
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#include "macros.h"
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/* Return a file descriptor that is too big to use.
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Prefer the smallest such fd, except use OPEN_MAX if it is defined
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and is greater than getdtablesize (), as that's how OS X works. */
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static int
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big_fd (void)
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{
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int fd = getdtablesize ();
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#ifdef OPEN_MAX
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if (fd < OPEN_MAX)
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fd = OPEN_MAX;
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#endif
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return fd;
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}
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int
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main (void)
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{
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posix_spawn_file_actions_t actions;
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ASSERT (posix_spawn_file_actions_init (&actions) == 0);
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/* Test behaviour for invalid file descriptors. */
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{
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errno = 0;
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ASSERT (posix_spawn_file_actions_addclose (&actions, -1) == EBADF);
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}
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{
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int bad_fd = big_fd ();
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errno = 0;
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ASSERT (posix_spawn_file_actions_addclose (&actions, bad_fd) == EBADF);
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}
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return 0;
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}
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