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unix: implement uv_udp_set_multicast_loop()

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This commit is contained in:
Ben Noordhuis 2012-01-23 20:57:12 +01:00
parent e710fdb518
commit b88bc43543
3 changed files with 34 additions and 26 deletions
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14
include/uv.h
View File

@ -632,6 +632,20 @@ UV_EXTERN int uv_udp_set_membership(uv_udp_t* handle,
const char* multicast_addr, const char* interface_addr,
uv_membership membership);
/*
* Set IP multicast loop flag. Makes multicast packets loop back to
* local sockets.
*
* 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.
*/
UV_EXTERN int uv_udp_set_multicast_loop(uv_udp_t* handle, int on);
/*
* Set the multicast ttl
*

40
src/unix/udp.c
View File

@ -509,37 +509,25 @@ 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;
#define X(name, level, option) \
int uv_udp_set_##name(uv_udp_t* handle, int flag) { \
if (setsockopt(handle->fd, level, option, &flag, sizeof(flag))) { \
uv__set_sys_error(handle->loop, errno); \
return -1; \
} \
return 0; \
}
return 0;
}
X(multicast_loop, IPPROTO_IP, IP_MULTICAST_LOOP)
X(multicast_ttl, IPPROTO_IP, IP_MULTICAST_TTL)
X(broadcast, SOL_SOCKET, SO_BROADCAST)
X(ttl, IPPROTO_IP, IP_TTL)
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;
}
#undef X
int uv_udp_set_ttl(uv_udp_t* handle, int ttl) {
if (setsockopt(handle->fd, IPPROTO_IP, IP_TTL, &ttl, sizeof ttl)) {
uv__set_sys_error(handle->loop, errno);
return -1;
}
return 0;
}
int uv_udp_getsockname(uv_udp_t* handle, struct sockaddr* name,
int* namelen) {
int uv_udp_getsockname(uv_udp_t* handle, struct sockaddr* name, int* namelen) {
socklen_t socklen;
int saved_errno;
int rv = 0;

6
src/win/udp.c
View File

@ -579,6 +579,12 @@ void uv_process_udp_send_req(uv_loop_t* loop, uv_udp_t* handle,
}
int uv_udp_set_multicast_loop(uv_udp_t* handle, int on) {
uv__set_artificial_error(handle->loop, UV_ENOSYS);
return -1;
}
int uv_udp_set_multicast_ttl(uv_udp_t* handle, int ttl) {
if (setsockopt(handle->socket, IPPROTO_IP, IP_MULTICAST_TTL,
(const char*)&ttl, sizeof ttl) == -1) {