1 files changed, 9 insertions, 2 deletions
diff --git a/src/common/utf8.c b/src/common/utf8.c
index 7f2e6f1..1d4cf13 100644
--- a/src/common/utf8.c
+++ b/src/common/utf8.c
@@ -54,10 +54,17 @@ bool yasl_utf8_validate(const char *str, size_t len)
 
 char *yasl_utf8_sanitize_dup(const char *str)
 {
-    if (!str) return NULL;
+    if (unlikely(!str)) return NULL;
     size_t len = strlen(str);
+    if (likely(yasl_utf8_validate(str, len))) {
+        char *out = malloc(len + 1);
+        if (unlikely(!out)) return NULL;
+        memcpy(out, str, len + 1);
+        return out;
+    }
+
     char *out = malloc(len + 1);
-    if (!out) return NULL;
+    if (unlikely(!out)) return NULL;
 
     const unsigned char *p = (const unsigned char *)str;
     size_t o = 0;