1 /* ncmpc (Ncurses MPD Client)
2 (c) 2004-2017 The Music Player Daemon Project
3 Project homepage: http://musicpd.org
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions
7 are met:
9 - Redistributions of source code must retain the above copyright
10 notice, this list of conditions and the following disclaimer.
12 - Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
20 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
21 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
22 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
23 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
24 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
25 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
26 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
29 #include "socket.h"
31 #ifndef WIN32
32 #include <fcntl.h>
33 #endif
35 static void
36 socket_set_cloexec(socket_t fd)
37 {
38 #ifndef WIN32
39 fcntl(fd, F_SETFD, FD_CLOEXEC);
40 #else
41 (void)fd;
42 #endif
43 }
45 static void
46 socket_set_nonblock(socket_t fd)
47 {
48 #ifdef WIN32
49 u_long val = 1;
50 ioctlsocket(fd, FIONBIO, &val);
51 #else
52 int flags = fcntl(fd, F_GETFL);
53 if (flags >= 0)
54 fcntl(fd, F_SETFL, flags | O_NONBLOCK);
55 #endif
56 }
58 socket_t
59 create_socket(int domain, int type, int protocol)
60 {
61 socket_t fd;
63 #if defined(SOCK_CLOEXEC) && defined(SOCK_NONBLOCK)
64 fd = socket(domain, type | SOCK_CLOEXEC | SOCK_NONBLOCK, protocol);
65 if (fd != INVALID_SOCKET || errno != EINVAL)
66 return fd;
67 #endif
69 fd = socket(domain, type, protocol);
70 if (fd != INVALID_SOCKET) {
71 socket_set_cloexec(fd);
72 socket_set_nonblock(fd);
73 }
75 return fd;
76 }