1/*
2 * Copyright (C) 2004 Daniel Eischen <deischen@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice(s), this list of conditions and the following disclaimer as
10 *    the first lines of this file unmodified other than the possible
11 *    addition of one or more copyright notices.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice(s), this list of conditions and the following disclaimer in
14 *    the documentation and/or other materials provided with the
15 *    distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE
21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31
32#include "namespace.h"
33#include <errno.h>
34#include <pthread.h>
35#include <unistd.h>
36#include "un-namespace.h"
37#include "thr_private.h"
38
39__weak_reference(_execve, execve);
40
41int
42_execve(const char *name, char *const *argv, char *const *envp)
43{
44	struct kse_execve_args args;
45	struct pthread *curthread = _get_curthread();
46	int ret;
47
48	if (curthread->attr.flags & PTHREAD_SCOPE_SYSTEM)
49		ret = __sys_execve(name, argv, envp);
50	else {
51		/*
52		 * When exec'ing, set the kernel signal mask to the thread's
53	 	 * signal mask to satisfy POSIX requirements.
54		 */
55		args.sigmask = curthread->sigmask;
56		args.sigpend = curthread->sigpend;
57		args.path = (char *)name;
58		args.argv = (char **)argv;
59		args.envp = (char **)envp;
60		args.reserved = NULL;
61		ret = kse_thr_interrupt(NULL, KSE_INTR_EXECVE, (long)&args);
62	}
63
64	return (ret);
65}
66