From 37d871af019af07edca5eaa3a47e3731b0a23dab Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Tue, 30 Dec 2025 23:19:01 +0100
Subject: [PATCH] tool_getparam: use memdup0() instead of malloc + copy

Closes #20118
---
 src/tool_getparam.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/tool_getparam.c b/src/tool_getparam.c
index 89385af844..7a3f815dff 100644
--- a/src/tool_getparam.c
+++ b/src/tool_getparam.c
@@ -36,6 +36,7 @@
 #include "tool_main.h"
 #include "tool_stderr.h"
 #include "tool_help.h"
+#include "tool_strdup.h"
 #include "var.h"
 
 #define ALLOW_BLANK TRUE
@@ -69,13 +70,10 @@ static ParameterError getstrn(char **str, const char *val,
   if(!allowblank && !val[0])
     return PARAM_BLANK_STRING;
 
-  *str = curlx_malloc(len + 1);
+  *str = memdup0(val, len);
   if(!*str)
     return PARAM_NO_MEM;
 
-  memcpy(*str, val, len);
-  (*str)[len] = 0; /* null-terminate */
-
   return PARAM_OK;
 }