5 files changed, 58 insertions, 0 deletions
diff --git a/utils/autodict_ql/litool.ql b/utils/autodict_ql/litool.ql
new file mode 100644
index 00000000..b7f4bf33
--- /dev/null
+++ b/utils/autodict_ql/litool.ql
@@ -0,0 +1,10 @@
+import cpp
+
+class HexOrOctLiteral extends Literal{
+    HexOrOctLiteral(){
+      (this instanceof HexLiteral) or (this instanceof OctalLiteral)
+    }
+}
+
+from HexOrOctLiteral lit
+select lit.getValueText()
\ No newline at end of file
diff --git a/utils/autodict_ql/memcmp-str.ql b/utils/autodict_ql/memcmp-str.ql
new file mode 100644
index 00000000..830c9cac
--- /dev/null
+++ b/utils/autodict_ql/memcmp-str.ql
@@ -0,0 +1,8 @@
+import cpp 
+
+/// function :  memcmp trace
+
+from FunctionCall fucall, Expr size
+where
+    fucall.getTarget().hasName("memcmp")
+select fucall.getArgument(_).getValueText()	
\ No newline at end of file
diff --git a/utils/autodict_ql/strcmp-str.ql b/utils/autodict_ql/strcmp-str.ql
new file mode 100644
index 00000000..83ffadaf
--- /dev/null
+++ b/utils/autodict_ql/strcmp-str.ql
@@ -0,0 +1,8 @@
+import cpp 
+
+/// function : strcmp
+
+from FunctionCall fucall, Expr size
+where
+    fucall.getTarget().hasName("strcmp")
+select fucall.getArgument(_).getValueText()
\ No newline at end of file
diff --git a/utils/autodict_ql/strncmp-str.ql b/utils/autodict_ql/strncmp-str.ql
new file mode 100644
index 00000000..dbb952e5
--- /dev/null
+++ b/utils/autodict_ql/strncmp-str.ql
@@ -0,0 +1,8 @@
+import cpp 
+
+/// function : strncmp
+
+from FunctionCall fucall, Expr size
+where
+    fucall.getTarget().hasName("strncmp")
+select fucall.getArgument(_).getValueText()
\ No newline at end of file
diff --git a/utils/autodict_ql/strtool.ql b/utils/autodict_ql/strtool.ql
new file mode 100644
index 00000000..f78aabbb
--- /dev/null
+++ b/utils/autodict_ql/strtool.ql
@@ -0,0 +1,24 @@
+import cpp
+import semmle.code.cpp.dataflow.DataFlow
+class StringLiteralNode extends DataFlow::Node {
+  StringLiteralNode() { this.asExpr() instanceof StringLiteral }
+}
+class MemcmpArgNode extends DataFlow::Node {
+   MemcmpArgNode() {
+    exists(FunctionCall fc |
+      fc.getTarget().getName().regexpMatch(".*(str|mem|strn|b)*(cmp|str)*") and
+      fc.getArgument(0) = this.asExpr() 
+    )
+ or
+    exists(FunctionCall fc |
+      fc.getTarget().getName().regexpMatch(".*(str|mem|strn|b)*(cmp|str)*") and
+      fc.getArgument(1) = this.asExpr()
+    )
+  }
+}
+
+from StringLiteralNode src, MemcmpArgNode arg
+where
+  DataFlow::localFlow(src, arg)
+
+select src.asExpr().(StringLiteral).toString()
\ No newline at end of file