src/network/socket.c

   1 #include <sys/socket.h>
   2 #include <fcntl.h>
   3 #include <errno.h>
   4 #include "syscall.h"
   5
   6 int socket(int domain, int type, int protocol)
   7 {
   8         int s = socketcall(socket, domain, type, protocol, 0, 0, 0);
   9         if (s<0 && (errno==EINVAL || errno==EPROTONOSUPPORT)
  10             && (type&(SOCK_CLOEXEC|SOCK_NONBLOCK))) {
  11                 s = socketcall(socket, domain,
  12                         type & ~(SOCK_CLOEXEC|SOCK_NONBLOCK),
  13                         protocol, 0, 0, 0);
  14                 if (s < 0) return s;
  15                 if (type & SOCK_CLOEXEC)
  16                         __syscall(SYS_fcntl, s, F_SETFD, FD_CLOEXEC);
  17                 if (type & SOCK_NONBLOCK)
  18                         __syscall(SYS_fcntl, s, F_SETFL, O_NONBLOCK);
  19         }
  20         return s;
  21 }