57 lines
1.1 KiB
C
57 lines
1.1 KiB
C
|
/*
|
||
|
|
* Public domain
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <sys/socket.h>
|
||
|
|
#undef socketpair
|
||
|
|
|
||
|
|
static int setfd(int fd, int flag)
|
||
|
|
{
|
||
|
|
int flags = fcntl(fd, F_GETFD);
|
||
|
|
flags |= flag;
|
||
|
|
return fcntl(fd, F_SETFD, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int setfl(int fd, int flag)
|
||
|
|
{
|
||
|
|
int flags = fcntl(fd, F_GETFL);
|
||
|
|
flags |= flag;
|
||
|
|
return fcntl(fd, F_SETFL, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
int pipe2(int fildes[2], int flags)
|
||
|
|
{
|
||
|
|
int rc = pipe(fildes);
|
||
|
|
if (rc == 0) {
|
||
|
|
if (flags & O_NONBLOCK) {
|
||
|
|
setfl(fildes[0], O_NONBLOCK);
|
||
|
|
setfl(fildes[1], O_NONBLOCK);
|
||
|
|
}
|
||
|
|
if (flags & O_CLOEXEC) {
|
||
|
|
setfd(fildes[0], FD_CLOEXEC);
|
||
|
|
setfd(fildes[1], FD_CLOEXEC);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return rc;
|
||
|
|
}
|
||
|
|
|
||
|
|
int bsd_socketpair(int domain, int type, int protocol, int socket_vector[2])
|
||
|
|
{
|
||
|
|
int flags = type & ~0xf;
|
||
|
|
type &= 0xf;
|
||
|
|
int rc = socketpair(domain, type, protocol, socket_vector);
|
||
|
|
if (rc == 0) {
|
||
|
|
if (flags & SOCK_NONBLOCK) {
|
||
|
|
setfl(socket_vector[0], O_NONBLOCK);
|
||
|
|
setfl(socket_vector[1], O_NONBLOCK);
|
||
|
|
}
|
||
|
|
if (flags & SOCK_CLOEXEC) {
|
||
|
|
setfd(socket_vector[0], FD_CLOEXEC);
|
||
|
|
setfd(socket_vector[1], FD_CLOEXEC);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return rc;
|
||
|
|
}
|