From 1eb78b020b4be9321f2157be653c4e1dcab6d662 Mon Sep 17 00:00:00 2001
From: Ben Fuhrmannek
Date: Tue, 3 Aug 2021 15:34:19 +0200
Subject: simplified string concat

---
 src/sp_unserialize.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/src/sp_unserialize.c b/src/sp_unserialize.c
index 8977dd9..06636ad 100644
--- a/src/sp_unserialize.c
+++ b/src/sp_unserialize.c
@@ -30,14 +30,9 @@ PHP_FUNCTION(sp_serialize) {
     zend_bailout();
     // LCOV_EXCL_STOP
   }
-  zend_string *res = zend_string_alloc(len, 0);
-
-  memcpy(ZSTR_VAL(res), Z_STRVAL_P(return_value), Z_STRLEN_P(return_value));
-  memcpy(ZSTR_VAL(res) + Z_STRLEN_P(return_value), Z_STRVAL(hmac),
-         Z_STRLEN(hmac));
 
   /* Append the computed HMAC to the serialized data. */
-  return_value->value.str = res;
+  return_value->value.str = zend_string_concat2(Z_STRVAL_P(return_value), Z_STRLEN_P(return_value), Z_STRVAL(hmac), Z_STRLEN(hmac));
   return;
 }
 
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