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unix: add uv_udp_set_broadcast() and uv_udp_set_multicast_ttl()

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wankdanker authored and bnoordhuis committed Nov 23, 2011
1 parent b674187 commit 497b1ecd0008bd972d20937bed6eeec4578bf458
Showing with 44 additions and 0 deletions.
  1. +26 −0 include/uv.h
  2. +18 −0 src/unix/udp.c
@@ -631,6 +631,32 @@ UV_EXTERN int uv_udp_set_membership(uv_udp_t* handle,
const char* multicast_addr, const char* interface_addr,
uv_membership membership);

/*
* Set the multicast ttl
*
* Arguments:
* handle UDP handle. Should have been initialized with
* `uv_udp_init`.
* ttl 1 through 255
*
* Returns:
* 0 on success, -1 on error.
*/
int uv_udp_set_multicast_ttl(uv_udp_t* handle, int ttl);

/*
* Set broadcast on or off
*
* Arguments:
* handle UDP handle. Should have been initialized with
* `uv_udp_init`.
* on 1 for on, 0 for off
*
* Returns:
* 0 on success, -1 on error.
*/
int uv_udp_set_broadcast(uv_udp_t* handle, int on);

/*
* Send data. If the socket has not previously been bound with `uv_udp_bind`
* or `uv_udp_bind6`, it is bound to 0.0.0.0 (the "all interfaces" address)
@@ -509,6 +509,24 @@ int uv_udp_set_membership(uv_udp_t* handle, const char* multicast_addr,
return 0;
}

int uv_udp_set_multicast_ttl(uv_udp_t* handle, int ttl) {
if (setsockopt(handle->fd, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof ttl) == -1) {
uv__set_sys_error(handle->loop, errno);
return -1;
}

return 0;
}

int uv_udp_set_broadcast(uv_udp_t* handle, int on) {
if (setsockopt(handle->fd, SOL_SOCKET, SO_BROADCAST, &on, sizeof on) == -1) {
uv__set_sys_error(handle->loop, errno);
return -1;
}

return 0;
}


int uv_udp_getsockname(uv_udp_t* handle, struct sockaddr* name,
int* namelen) {

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