Fix BSTstackLib service UUID reporting to client (#2968)

earlephilhower · web-flow · commit f3df35566351 · 2025-05-22T12:34:26.000-07:00
Fixes #2967
diff --git a/libraries/BTstackLib/src/BTstackLib.cpp b/libraries/BTstackLib/src/BTstackLib.cpp
@@ -196,7 +196,7 @@ static void extract_service(gatt_client_service_t * service, uint8_t * packet) {
     service->start_group_handle = little_endian_read_16(packet, 4);
     service->end_group_handle   = little_endian_read_16(packet, 6);
     service->uuid16 = 0;
-    reverse_128(&packet[8], service->uuid128);
+    reverse_128(&packet[12], service->uuid128);
     if (uuid_has_bluetooth_prefix(service->uuid128)) {
         service->uuid16 = big_endian_read_32(service->uuid128, 0);
     }

Original file line number	Diff line number	Diff line change
`@@ -196,7 +196,7 @@ static void extract_service(gatt_client_service_t * service, uint8_t * packet) {`
`196`	`196`	`service->start_group_handle = little_endian_read_16(packet, 4);`
`197`	`197`	`service->end_group_handle = little_endian_read_16(packet, 6);`
`198`	`198`	`service->uuid16 = 0;`
`199`		`- reverse_128(&packet[8], service->uuid128);`
	`199`	`+ reverse_128(&packet[12], service->uuid128);`
`200`	`200`	`if (uuid_has_bluetooth_prefix(service->uuid128)) {`
`201`	`201`	`service->uuid16 = big_endian_read_32(service->uuid128, 0);`
`202`	`202`	`}`