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89e435f355
POSIX requires that we make a copy, so we allocate a new string and free it in posix_spawn_file_actions_destroy. Reported by David Reid, Alex Gaynor, and Glyph Lefkowitz. This bug may have security implications.
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* Copyright (C) 2000-2014 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <spawn.h>
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#include <stdlib.h>
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#include "spawn_int.h"
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/* Deallocate the file actions. */
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int
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posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *file_actions)
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{
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/* Free the paths in the open actions. */
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for (int i = 0; i < file_actions->__used; ++i)
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{
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struct __spawn_action *sa = &file_actions->__actions[i];
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switch (sa->tag)
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{
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case spawn_do_open:
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free (sa->action.open_action.path);
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break;
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case spawn_do_close:
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case spawn_do_dup2:
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/* No cleanup required. */
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break;
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}
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}
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/* Free the array of actions. */
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free (file_actions->__actions);
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return 0;
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}
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