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/*
* Copyright (c) 2020 Claudio Jeker <claudio@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.
*/
#define IN_SOCKET_COMPAT
#include <sys/socket.h>
#ifdef NEED_SOCKET_FLAGS
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
static int
setflags(int fd, int type)
{
int flags;
if (type & SOCK_CLOEXEC) {
flags = fcntl(fd, F_GETFD);
if (flags == -1)
return -1;
if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
return -1;
}
if (type & SOCK_NONBLOCK) {
flags = fcntl(fd, F_GETFL);
if (flags == -1)
return -1;
if (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == -1)
return -1;
}
return 0;
}
int
_socketpair(int domain, int type, int protocol, int sv[2])
{
int mask = ~(SOCK_CLOEXEC | SOCK_NONBLOCK);
if (socketpair(domain, type & mask, protocol, sv) == -1)
return -1;
if (setflags(sv[0], type) == -1 ||
setflags(sv[1], type) == -1) {
int save_errno = errno;
close(sv[0]);
close(sv[1]);
errno = save_errno;
return -1;
}
return 0;
}
int
_socket(int domain, int type, int protocol)
{
int fd, mask = ~(SOCK_CLOEXEC | SOCK_NONBLOCK);
if ((fd = socket(domain, type & mask, protocol)) == -1)
return -1;
if (setflags(fd, type) == -1) {
int save_errno = errno;
close(fd);
errno = save_errno;
return -1;
}
return fd;
}
#endif
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