NAME

       socket_send6 - send a UDP datagram

SYNTAX

       #include <libowfat/socket.h>

       ssize_t socket_send6(int s, const char* buf, size_t len,
                            const char ip[16], uint16 port, uint32 scope_id);

DESCRIPTION

       socket_send6  sends  len  bytes starting at buf in a UDP datagram over the socket s to UDP
       port port on IP address ip.

       You can call socket_send6 without calling socket_bind6.  This  has  the  effect  as  first
       calling socket_bind6 with IP address :: and port 0.

       The  meaning  of  scope_id  is dependent on the implementation and IPv6 IP.  On link-local
       IPv6 addresses it specifies the outgoing interface index.  The name (e.g.  "eth0")  for  a
       given  interface  index can be queried with getifname.  scope_id should normally be set to
       0.

RETURN VALUE

       socket_send6 returns 0 if the datagram was sent successfully.  If not, it returns  -1  and
       sets errno appropriately.

EXAMPLE

         #include <libowfat/socket.h>

         int s;
         char ip[16];
         uint16 p;
         uint32 scope_id;

         s = socket_tcp4();
         socket_bind6(s,ip,p);
         socket_send6(s,"hello, world",12,ip,p,scope_id);

SEE ALSO

       socket_send4(3), socket_getifidx(3)

                                                                                  socket_send6(3)