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Fix DoS in Quick Share via malformed mDNS on Apple platforms

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PiperOrigin-RevId: 949295891
This commit is contained in:
Edwin Wu
2026-07-16 18:52:04 -07:00
committed by Copybara-Service
parent a6f799af7f
commit 953d9ea26c
10 changed files with 136 additions and 37 deletions
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internal/platform/implementation/apple/network_utils.mm
+2 -2
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@@ -63,7 +63,7 @@ bool StartDiscovery(GNCNWFramework* medium, const std::string& service_type,
serviceFoundHandler:^(NSString* name, NSDictionary<NSString*, NSString*>* txtRecords) {
NsdServiceInfo nsd_service_info;
nsd_service_info.SetServiceType([serviceType UTF8String]);
nsd_service_info.SetServiceName([name UTF8String]);
nsd_service_info.SetServiceName(name ? [name UTF8String] : "");
[txtRecords
enumerateKeysAndObjectsUsingBlock:[nsd_service_info = &nsd_service_info](
NSString* key, NSString* val, BOOL* stop) {
@@ -74,7 +74,7 @@ bool StartDiscovery(GNCNWFramework* medium, const std::string& service_type,
serviceLostHandler:^(NSString* name, NSDictionary<NSString*, NSString*>* txtRecords) {
NsdServiceInfo nsd_service_info;
nsd_service_info.SetServiceType([serviceType UTF8String]);
nsd_service_info.SetServiceName([name UTF8String]);
nsd_service_info.SetServiceName(name ? [name UTF8String] : "");
[txtRecords
enumerateKeysAndObjectsUsingBlock:[nsd_service_info = &nsd_service_info](
NSString* key, NSString* val, BOOL* stop) {