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Fix wake-on-lan failure on LAN after ARP cache expiration of target PC. Fixes #293

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This commit is contained in:
Cameron Gutman
2018-01-19 20:18:39 -08:00
parent be26ce9a8f
commit 43f4804194
1 changed files with 7 additions and 1 deletions
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8
Limelight/Network/WakeOnLanManager.m
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@@ -33,7 +33,7 @@ static const int ports[numPorts] = {7, 9, 47998, 47999, 48000};
+ (void) wakeHost:(TemporaryHost*)host {
NSData* wolPayload = [WakeOnLanManager createPayload:host];
for (int i = 0; i < 3; i++) {
for (int i = 0; i < 4; i++) {
const char* address;
struct addrinfo hints, *res, *curr;
@@ -44,6 +44,8 @@ static const int ports[numPorts] = {7, 9, 47998, 47999, 48000};
address = [host.externalAddress UTF8String];
} else if (i == 2 && host.address != nil) {
address = [host.address UTF8String];
} else if (i == 3) {
address = "255.255.255.255";
} else {
// Requested address wasn't present
continue;
@@ -63,6 +65,7 @@ static const int ports[numPorts] = {7, 9, 47998, 47999, 48000};
// may be different address families.
for (curr = res; curr != NULL; curr = curr->ai_next) {
int wolSocket;
int val;
wolSocket = socket(curr->ai_family, SOCK_DGRAM, IPPROTO_UDP);
if (wolSocket < 0) {
@@ -70,6 +73,9 @@ static const int ports[numPorts] = {7, 9, 47998, 47999, 48000};
continue;
}
val = 1;
setsockopt(wolSocket, SOL_SOCKET, SO_BROADCAST, &val, sizeof(val));
struct sockaddr_storage addr;
memset(&addr, 0, sizeof(addr));
memcpy(&addr, curr->ai_addr, curr->ai_addrlen);