1 files changed, 11 insertions, 1 deletions
diff --git a/msm8998/hal/src/PrefixParser.cpp b/msm8998/hal/src/PrefixParser.cpp
index 60aae08..d38bec0 100644
--- a/msm8998/hal/src/PrefixParser.cpp
+++ b/msm8998/hal/src/PrefixParser.cpp
@@ -118,6 +118,9 @@ string PrefixParser::getLastErrAsStr() {
 
 /* ------------------------------ PRIVATE ----------------------------------- */
 bool PrefixParser::add(vector<string> in, IP_FAM famHint) {
+    if (in.size() == 0)
+        return false;
+
     for (size_t i = 0; i < in.size(); i++) {
         if (!add(in[i], famHint))
             return false;
@@ -126,6 +129,11 @@ bool PrefixParser::add(vector<string> in, IP_FAM famHint) {
 } /* add */
 
 bool PrefixParser::add(string in, IP_FAM famHint) {
+    if (in.length() == 0) {
+        mLastErr = "Failed to parse string, length = 0...";
+        return false;
+    }
+
     if (famHint == IP_FAM::INVALID)
         famHint = guessIPFamily(in);
 
@@ -138,8 +146,10 @@ bool PrefixParser::add(string in, IP_FAM famHint) {
     }
 
     int mask = parseSubnetMask(subnet, famHint);
-    if (!isMaskValid(mask, famHint))
+    if (!isMaskValid(mask, famHint)) {
+        mLastErr = "Invalid mask";
         return false;
+    }
 
     Prefix pre = makeBlankPrefix(famHint);