socket.c raw

   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==-EINVAL || s==-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 __syscall_ret(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 __syscall_ret(s);
  21  }
  22