From c14d4a9e9d07bfa1a8493d941f101f85e9ca0fb0 Mon Sep 17 00:00:00 2001
From: Giuliano Belinassi <gbelinassi@suse.de>
Date: Wed, 26 Jun 2024 22:26:07 -0300
Subject: [PATCH] Fix return value of `strupr`

Pointer arithmetic changes the address hold by `str`, so we must save
it before returning.

Signed-off-by: Giuliano Belinassi <gbelinassi@suse.de>
---
 common/wwstd.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/common/wwstd.h b/common/wwstd.h
index 03c7d170..5e41f066 100644
--- a/common/wwstd.h
+++ b/common/wwstd.h
@@ -262,11 +262,12 @@ inline static void _splitpath(const char* path, char* drive, char* dir, char* fn
 
 inline static char* strupr(char* str)
 {
+    char* ret = str;
     while (*str != '\0') {
         *str = toupper(*str);
         ++str;
     }
-    return str;
+    return ret;
 }
 
 inline static void strrev(char* str)