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/*
* Copyright (c) 2016 Reyk Floeter <reyk@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/socket.h>
#include <unistd.h>
#include "openbsd-compat.h"
#undef socket
#undef accept4
#if defined(SOCK_SETFLAGS)
#include <fcntl.h>
static int
bsd_socket_setflags(int s, int flags)
{
#ifdef _WIN32
/* see libressl/tests/compat/pipe2.c */
if (flags & FD_CLOEXEC) {
HANDLE h = (HANDLE)_get_osfhandle(s);
if (h != NULL)
if (SetHandleInformation(h, HANDLE_FLAG_INHERIT, 0) == 0)
return (-1);
}
if (flags & O_NONBLOCK) {
unsigned long mode = 1;
if (ioctlsocket(s, FIONBIO, &mode) != 0)
return (-1);
}
return (0);
#else
int f;
if (flags & SOCK_NONBLOCK) {
if (fcntl(s, F_GETFL, &f) == -1)
return (-1);
f |= O_NONBLOCK;
if (fcntl(s, F_SETFL, &f) == -1)
return (-1);
}
if (flags & SOCK_CLOEXEC) {
if (fcntl(s, F_GETFD, &f) == -1)
return (-1);
f |= FD_CLOEXEC;
if (fcntl(s, F_SETFD, &f) == -1)
return (-1);
}
return (0);
#endif
}
#endif
int
bsd_socket(int domain, int type, int protocol)
{
int s;
#if defined(SOCK_SETFLAGS)
int setfl;
setfl = type & SOCK_SETFLAGS;
type &= ~SOCK_SETFLAGS;
#endif
if ((s = socket(domain, type, protocol)) == -1)
return (-1);
#if defined(SOCK_SETFLAGS)
if (bsd_socket_setflags(s, setfl) == -1) {
close(s);
return (-1);
}
#endif
return (s);
}
#if 0
/* conflicts w/ libressl/compat/pipe2.c */
int
bsd_socketpair(int d, int type, int protocol, int sv[2])
{
#if defined(SOCK_SETFLAGS)
int setfl;
int i;
setfl = type & SOCK_SETFLAGS;
type &= ~SOCK_SETFLAGS;
#endif
if (socketpair(d, type, protocol, sv) == -1)
return (-1);
#if defined(SOCK_SETFLAGS)
for (i = 0; i < 2; i++) {
if (bsd_socket_setflags(sv[i], setfl) == -1) {
close(sv[0]);
close(sv[1]);
return (-1);
}
}
#endif
return (0);
}
#endif
int
bsd_accept4(int s, struct sockaddr *addr, socklen_t *addrlen, int flags)
{
#if !defined(SOCK_SETFLAGS) && defined(HAVE_ACCEPT4)
return (accept4(s, addr, addrlen, flags));
#elif defined(SOCK_SETFLAGS)
int c, setfl;
setfl = flags & SOCK_SETFLAGS;
flags &= ~SOCK_SETFLAGS;
if ((c = accept(s, addr, addrlen)) == -1)
return (-1);
if (bsd_socket_setflags(c, setfl) == -1) {
close(c);
return (-1);
}
return (c);
#elif defined(__NetBSD__)
return (paccept(s, addr, addrlen, NULL, flags));
#endif
}
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