skalibs

Mirror/fork of https://skarnet.org/software/skalibs/
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socket_udp6.c (655B)

      1 /* ISC license. */
      2 
      3 #include <skalibs/nonposix.h>
      4 #include <sys/socket.h>
      5 #include <netinet/in.h>
      6 #include <errno.h>
      7 #include <skalibs/djbunix.h>
      8 #include <skalibs/ip46.h>
      9 #include <skalibs/socket.h>
     10 
     11 #ifdef SKALIBS_IPV6_ENABLED
     12 
     13 int socket_udp6_internal (unsigned int flags)
     14 {
     15   int fd = socket_internal(AF_INET6, SOCK_DGRAM, 0, flags) ;
     16   if (fd < 0) return fd ;
     17   {
     18     int option = 1 ;
     19     if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &option, sizeof(option)) < 0)
     20     {
     21       fd_close(fd) ;
     22       return -1 ;
     23     }
     24   }
     25   return fd ;
     26 }
     27 
     28 #else
     29 
     30 int socket_udp6_internal (unsigned int flags)
     31 {
     32   (void)flags ;
     33   return (errno = ENOSYS, -1) ;
     34 }
     35 
     36 #endif