#include <sys/socket.h>
+#include <fcntl.h>
+#include <errno.h>
#include "syscall.h"
int socket(int domain, int type, int protocol)
{
- return socketcall(socket, domain, type, protocol, 0, 0, 0);
+ int s = socketcall(socket, domain, type, protocol, 0, 0, 0);
+ if (s<0 && (errno==EINVAL || errno==EPROTONOSUPPORT)
+ && (type&(SOCK_CLOEXEC|SOCK_NONBLOCK))) {
+ s = socketcall(socket, domain,
+ type & ~(SOCK_CLOEXEC|SOCK_NONBLOCK),
+ protocol, 0, 0, 0);
+ if (s < 0) return s;
+ if (type & SOCK_CLOEXEC)
+ fcntl(s, F_SETFD, FD_CLOEXEC);
+ if (type & SOCK_NONBLOCK)
+ fcntl(s, F_SETFL, fcntl(s, F_GETFL) | O_NONBLOCK);
+ }
+ return s;
}