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authorFlorian Weimer <fweimer@redhat.com>2016-02-19 14:49:38 +0100
committerFlorian Weimer <fweimer@redhat.com>2016-02-19 14:49:38 +0100
commit6793dd51d8e7d4f3408c183c6f7dc86acd7f1330 (patch)
tree7d8f6b314549b47a510f3cfb387743f8fd4e7001 /posix/spawn_int.h
parentff889b196575c2fbf6aa7130abb1ec862714ea4e (diff)
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Improve file descriptor checks for posix_spawn actions [BZ #19505]
Diffstat (limited to 'posix/spawn_int.h')
-rw-r--r--posix/spawn_int.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/posix/spawn_int.h b/posix/spawn_int.h
index 861e3b47bb..b7da3b8abe 100644
--- a/posix/spawn_int.h
+++ b/posix/spawn_int.h
@@ -1,3 +1,27 @@
+/* Internal definitions for posix_spawn functionality.
+ Copyright (C) 2000-2016 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
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SPAWN_INT_H
+#define _SPAWN_INT_H
+
+#include <spawn.h>
+#include <stdbool.h>
+
/* Data structure to contain the action information. */
struct __spawn_action
{
@@ -39,3 +63,9 @@ extern int __spawni (pid_t *pid, const char *path,
const posix_spawn_file_actions_t *file_actions,
const posix_spawnattr_t *attrp, char *const argv[],
char *const envp[], int xflags);
+
+/* Return true if FD falls into the range valid for file descriptors.
+ The check in this form is mandated by POSIX. */
+bool __spawn_valid_fd (int fd) internal_function attribute_hidden;
+
+#endif /* _SPAWN_INT_H */