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-rw-r--r--instrumentation/SanitizerCoverageLTO.so.cc11
-rw-r--r--instrumentation/afl-llvm-dict2file.so.cc19
-rw-r--r--instrumentation/compare-transform-pass.so.cc1
-rw-r--r--instrumentation/split-switches-pass.so.cc4
4 files changed, 24 insertions, 11 deletions
diff --git a/instrumentation/SanitizerCoverageLTO.so.cc b/instrumentation/SanitizerCoverageLTO.so.cc
index 4e25221a..dbe4672c 100644
--- a/instrumentation/SanitizerCoverageLTO.so.cc
+++ b/instrumentation/SanitizerCoverageLTO.so.cc
@@ -922,13 +922,16 @@ bool ModuleSanitizerCoverage::instrumentModule(
             // was not already added
             if (!isMemcmp) {
 
-              if (addedNull == false && thestring[optLen - 1] != '\0') {
+              /*
+                            if (addedNull == false && thestring[optLen - 1] !=
+                 '\0') {
 
-                thestring.append("\0", 1);  // add null byte
-                optLen++;
+                              thestring.append("\0", 1);  // add null byte
+                              optLen++;
 
-              }
+                            }
 
+              */
               if (!isStdString) {
 
                 // ensure we do not have garbage
diff --git a/instrumentation/afl-llvm-dict2file.so.cc b/instrumentation/afl-llvm-dict2file.so.cc
index 7c04c0c5..d4f36b2c 100644
--- a/instrumentation/afl-llvm-dict2file.so.cc
+++ b/instrumentation/afl-llvm-dict2file.so.cc
@@ -603,18 +603,27 @@ bool AFLdict2filePass::runOnModule(Module &M) {
           // was not already added
           if (!isMemcmp) {
 
-            if (addedNull == false && thestring[optLen - 1] != '\0') {
+            /*
+                        if (addedNull == false && thestring[optLen - 1] != '\0')
+               {
 
-              thestring.append("\0", 1);  // add null byte
-              optLen++;
+                          thestring.append("\0", 1);  // add null byte
+                          optLen++;
 
-            }
+                        }
+
+            */
 
             if (!isStdString) {
 
               // ensure we do not have garbage
               size_t offset = thestring.find('\0', 0);
-              if (offset + 1 < optLen) optLen = offset + 1;
+              if (offset && offset < opLen && offset + 1 < optLen) {
+
+                optLen = offset + 1;
+
+              }
+
               thestring = thestring.substr(0, optLen);
 
             }
diff --git a/instrumentation/compare-transform-pass.so.cc b/instrumentation/compare-transform-pass.so.cc
index b05da71c..5db9c409 100644
--- a/instrumentation/compare-transform-pass.so.cc
+++ b/instrumentation/compare-transform-pass.so.cc
@@ -442,6 +442,7 @@ bool CompareTransform::transformCmps(Module &M, const bool processStrcmp,
     bool        isSizedcmp = false;
     bool        isCaseInsensitive = false;
     Function *  Callee = callInst->getCalledFunction();
+
     if (Callee) {
 
       isMemcmp = Callee->getName().compare("memcmp") == 0;
diff --git a/instrumentation/split-switches-pass.so.cc b/instrumentation/split-switches-pass.so.cc
index 7bff2789..e0a96ac9 100644
--- a/instrumentation/split-switches-pass.so.cc
+++ b/instrumentation/split-switches-pass.so.cc
@@ -507,9 +507,9 @@ bool SplitSwitchesTransform::runOnModule(Module &M) {
 
 #if LLVM_VERSION_MAJOR >= 11                        /* use new pass manager */
                              /*  if (modified) {
-
+                           
                                  PA.abandon<XX_Manager>();
-
+                           
                                }*/
 
   return PA;