Check pointer is not NULL before passing to strlen

Signed-off-by: Selva Nair <[email protected]>
OpenVPN · Mar 11, 2022 · 2cc5788 · 2cc5788
1 parent 6271d2f
commit 2cc5788
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/misc.c b/misc.c
@@ -171,7 +171,6 @@ char *
 escape_string(const char *input)
 {
     char *out = strdup(input);
-    int len = strlen(out);
     const char *esc = "\'\"\\ ";
 
     if (!out)
@@ -180,6 +179,8 @@ escape_string(const char *input)
         return NULL;
     }
 
+    int len = strlen(out);
+
     for (int pos = 0; pos < len; ++pos)
     {
         if (strchr(esc, out[pos]))