lib/: Use strtolower() instead of its pattern

Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/lib/obscure.c b/lib/obscure.c
index d508200f4df6b3ddc7959cd131f85fed4943414e..eca4338a896dd3d8b6a269cd456d3f6a254eba41 100644 (file)
--- a/lib/obscure.c
+++ b/lib/obscure.c
@@ -1,11 +1,10 @@
-/*
- * SPDX-FileCopyrightText: 1989 - 1994, Julianne Frances Haugh
- * SPDX-FileCopyrightText: 1996 - 1999, Marek Michałkiewicz
- * SPDX-FileCopyrightText: 2003 - 2005, Tomasz Kłoczko
- * SPDX-FileCopyrightText: 2007 - 2010, Nicolas François
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
+// SPDX-FileCopyrightText: 1989-1994, Julianne Frances Haugh
+// SPDX-FileCopyrightText: 1996-1999, Marek Michałkiewicz
+// SPDX-FileCopyrightText: 2003-2005, Tomasz Kłoczko
+// SPDX-FileCopyrightText: 2007-2010, Nicolas François
+// SPDX-FileCopyrightText: 2025, Alejandro Colomar <alx@kernel.org>
+// SPDX-License-Identifier: BSD-3-Clause
+
 
 #include <config.h>
 
@@ -19,6 +18,7 @@
 #include "prototypes.h"
 #include "defines.h"
 #include "getdef.h"
+#include "string/ctype/strtoascii/strtolower.h"
 #include "string/memset/memzero.h"
 #include "string/sprintf/xasprintf.h"
 #include "string/strcmp/streq.h"
@@ -78,15 +78,6 @@ static bool similar (/*@notnull@*/const char *old, /*@notnull@*/const char *new)
        return true;
 }
 
-static char *str_lower (/*@returned@*/char *string)
-{
-       char *cp;
-
-       for (cp = string; !streq(cp, ""); cp++) {
-               *cp = tolower (*cp);
-       }
-       return string;
-}
 
 static /*@observer@*//*@null@*/const char *password_check (
        /*@notnull@*/const char *old,
@@ -100,8 +91,8 @@ static /*@observer@*//*@null@*/const char *password_check (
                return _("no change");
        }
 
-       newmono = str_lower (xstrdup (new));
-       oldmono = str_lower (xstrdup (old));
+       newmono = strtolower(xstrdup(new));
+       oldmono = strtolower(xstrdup(old));
        xasprintf(&wrapped, "%s%s", oldmono, oldmono);
 
        if (palindrome (oldmono, newmono)) {