From 2484c35c5deec375307bd4f51aa89ae5080a4e56 Mon Sep 17 00:00:00 2001
From: Jeremy Harris <jgh146exb@wizmail.org>
Date: Mon, 16 Oct 2023 11:54:50 +0100
Subject: [PATCH] Use project-standard memory management rather than alloca()

---
 src/src/string.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/src/string.c b/src/src/string.c
index 055a37fd6..51b12c5e5 100644
--- a/src/src/string.c
+++ b/src/src/string.c
@@ -105,9 +105,7 @@ string_is_ip_addressX(const uschar *ip_addr, int *maskptr, const uschar **errp)
       if (errp) *errp = "rudiculous long ip address string";
       return 0;
     }
-    addr = alloca(l+1); /* *BSD does not have strndupa() */
-    Ustrncpy((uschar *)addr, ip_addr, l);
-    ((uschar*)addr)[l] = '\0';
+    addr = string_copyn(ip_addr, l);
   } else addr = ip_addr;
 
   int af;
-- 
2.30.2