1 /* $NetBSD: posix_spawnp.c,v 1.2 2012/02/22 17:51:01 martin Exp $ */
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Martin Husemann <martin@NetBSD.org>.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 #if defined(LIBC_SCCS) && !defined(lint)
34 __RCSID("$NetBSD: posix_spawnp.c,v 1.2 2012/02/22 17:51:01 martin Exp $");
35 #endif /* LIBC_SCCS and not lint */
45 int posix_spawnp(pid_t
* __restrict pid
, const char * __restrict file
,
46 const posix_spawn_file_actions_t
*fa
,
47 const posix_spawnattr_t
* __restrict sa
,
48 char * const *__restrict cav
, char * const *__restrict env
)
50 char fpath
[FILENAME_MAX
], *last
, *p
;
54 * If there is a / in the filename, or no PATH environment variable
55 * set, fall straight through to posix_spawn().
57 if (strchr(file
, '/') != NULL
|| (path
= getenv("PATH")) == NULL
)
58 return posix_spawn(pid
, file
, fa
, sa
, cav
, env
);
65 * Find an executable image with the given name in the PATH
67 for (p
= strtok_r(path
, ":", &last
); p
;
68 p
= strtok_r(NULL
, ":", &last
)) {
69 snprintf(fpath
, sizeof fpath
, "%s/%s", p
, file
);
70 fpath
[FILENAME_MAX
-1] = 0;
71 if (access(fpath
, X_OK
) == 0)
77 * Use posix_spawn() with the found binary
79 return posix_spawn(pid
, fpath
, fa
, sa
, cav
, env
);