1 files changed, 38 insertions, 0 deletions
diff --git a/src/libstddjb/socket_udp6.c b/src/libstddjb/socket_udp6.c
new file mode 100644
index 0000000..41d395a
--- /dev/null
+++ b/src/libstddjb/socket_udp6.c
@@ -0,0 +1,38 @@
+/* ISC license. */
+
+#include <skalibs/nonposix.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <skalibs/djbunix.h>
+#include <skalibs/ip46.h>
+#include <skalibs/socket.h>
+
+#ifdef SKALIBS_IPV6_ENABLED
+
+int socket_udp6_internal (unsigned int flags)
+{
+  int fd = socket_internal(AF_INET6, SOCK_DGRAM, 0, flags) ;
+  if (fd < 0) return fd ;
+  {
+    int option = 1 ;
+    if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &option, sizeof(option)) < 0)
+    {
+      register int e = errno ;
+      fd_close(fd) ;
+      errno = e ;
+      return -1 ;
+    }
+  }
+  return fd ;
+}
+
+#else
+
+int socket_udp6_internal (unsigned int flags)
+{
+  (void)flags ;
+  return (errno = ENOSYS, -1) ;
+}
+
+#endif