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Copy stable/8 to releng/8.1 in preparation for 8.1-RC1.
[FreeBSD/releng/8.1.git] / lib / libc_r / uthread / uthread_connect.c
1 /*
2  * Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>
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, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the author nor the names of any co-contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 #include <errno.h>
32 #include <sys/types.h>
33 #include <sys/socket.h>
34 #include <fcntl.h>
35 #include <pthread.h>
36 #include "pthread_private.h"
37
38 __weak_reference(__connect, connect);
39
40 int
41 _connect(int fd, const struct sockaddr * name, socklen_t namelen)
42 {
43         struct pthread  *curthread = _get_curthread();
44         struct sockaddr tmpname;
45         int             errnolen, ret, tmpnamelen;
46
47         if ((ret = _FD_LOCK(fd, FD_RDWR, NULL)) == 0) {
48                 if ((ret = __sys_connect(fd, name, namelen)) < 0) {
49                         if ((_thread_fd_getflags(fd) & O_NONBLOCK) == 0
50                             && ((errno == EWOULDBLOCK) || (errno == EINPROGRESS)
51                             || (errno == EALREADY) || (errno == EAGAIN))) {
52                                 curthread->data.fd.fd = fd;
53
54                                 /* Set the timeout: */
55                                 _thread_kern_set_timeout(NULL);
56                                 _thread_kern_sched_state(PS_FDW_WAIT, __FILE__, __LINE__);
57
58                                 tmpnamelen = sizeof(tmpname);
59                                 /* 0 now lets see if it really worked */
60                                 if (((ret = __sys_getpeername(fd, &tmpname, &tmpnamelen)) < 0) && (errno == ENOTCONN)) {
61
62                                         /*
63                                          * Get the error, this function
64                                          * should not fail 
65                                          */
66                                         errnolen = sizeof(errno);
67                                         __sys_getsockopt(fd, SOL_SOCKET, SO_ERROR, &errno, &errnolen);
68                                 }
69                         } else {
70                                 ret = -1;
71                         }
72                 }
73                 _FD_UNLOCK(fd, FD_RDWR);
74         }
75         return (ret);
76 }
77
78 int
79 __connect(int fd, const struct sockaddr * name, socklen_t namelen)
80 {
81         int ret;
82
83         _thread_enter_cancellation_point();
84         ret = _connect(fd, name, namelen);
85         _thread_leave_cancellation_point();
86
87         return (ret);
88 }