#include <sys/socket.h>
+#include <fcntl.h>
+#include <errno.h>
#include "syscall.h"
-#include "socketcall.h"
int socketpair(int domain, int type, int protocol, int fd[2])
{
- unsigned long args[] = { domain, type, protocol, (unsigned long)fd };
- return syscall2(__NR_socketcall, SYS_SOCKETPAIR, (long)args);
+ int r = socketcall(socketpair, domain, type, protocol, fd, 0, 0);
+ if (r<0 && (errno==EINVAL || errno==EPROTONOSUPPORT)
+ && (type&(SOCK_CLOEXEC|SOCK_NONBLOCK))) {
+ r = socketcall(socketpair, domain,
+ type & ~(SOCK_CLOEXEC|SOCK_NONBLOCK),
+ protocol, fd, 0, 0);
+ if (r < 0) return r;
+ if (type & SOCK_CLOEXEC) {
+ __syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC);
+ __syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC);
+ }
+ if (type & SOCK_NONBLOCK) {
+ __syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK);
+ __syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK);
+ }
+ }
+ return r;
}