Handle empty apn string in setInitialAttachApn HIDL API.

Do not convert empty str to null in ril_service.cpp hidl conversion
as apn cannot be passed as null. QC expects empty apn string.

Change-Id: If9810f2d7741491e4ed440d20c95230e09a4b5d3
Fix: 62066962
Test: manual

diff --git a/libril/ril_service.cpp b/libril/ril_service.cpp
index a5fa8b9..e2fb254 100644 (file)
--- a/libril/ril_service.cpp
+++ b/libril/ril_service.cpp
@@ -1902,8 +1902,19 @@ Return<void> RadioImpl::setInitialAttachApn(int32_t serial, const DataProfileInf
     if (s_vendorFunctions->version <= 14) {
         RIL_InitialAttachApn iaa = {};
 
-        if (!copyHidlStringToRil(&iaa.apn, dataProfileInfo.apn, pRI)) {
-            return Void();
+        if (dataProfileInfo.apn.size() == 0) {
+            iaa.apn = (char *) calloc(1, sizeof(char));
+            if (iaa.apn == NULL) {
+                RLOGE("Memory allocation failed for request %s",
+                        requestToString(pRI->pCI->requestNumber));
+                sendErrorResponse(pRI, RIL_E_NO_MEMORY);
+                return Void();
+            }
+            iaa.apn[0] = '\0';
+        } else {
+            if (!copyHidlStringToRil(&iaa.apn, dataProfileInfo.apn, pRI)) {
+                return Void();
+            }
         }
 
         const hidl_string &protocol =
@@ -1929,9 +1940,21 @@ Return<void> RadioImpl::setInitialAttachApn(int32_t serial, const DataProfileInf
     } else {
         RIL_InitialAttachApn_v15 iaa = {};
 
-        if (!copyHidlStringToRil(&iaa.apn, dataProfileInfo.apn, pRI)) {
-            return Void();
+        if (dataProfileInfo.apn.size() == 0) {
+            iaa.apn = (char *) calloc(1, sizeof(char));
+            if (iaa.apn == NULL) {
+                RLOGE("Memory allocation failed for request %s",
+                        requestToString(pRI->pCI->requestNumber));
+                sendErrorResponse(pRI, RIL_E_NO_MEMORY);
+                return Void();
+            }
+            iaa.apn[0] = '\0';
+        } else {
+            if (!copyHidlStringToRil(&iaa.apn, dataProfileInfo.apn, pRI)) {
+                return Void();
+            }
         }
+
         if (!copyHidlStringToRil(&iaa.protocol, dataProfileInfo.protocol, pRI)) {
             memsetAndFreeStrings(1, iaa.apn);
             return Void();