From dd34d89b668254aa8b05192d396ab9f3069a0c28 Mon Sep 17 00:00:00 2001
From: Bastien Nocera <hadess@hadess.net>
Date: Fri, 22 Jul 2022 11:09:15 +0200
Subject: util: Add locale verification function

Same as the XPG locale verification, but also considers empty strings as
valid locale, as this means "use the system value" in AccountsService.
---
 src/util.c | 8 ++++++++
 src/util.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/src/util.c b/src/util.c
index 3b7a2da..54cdd6d 100644
--- a/src/util.c
+++ b/src/util.c
@@ -389,3 +389,11 @@ verify_xpg_locale (const char *locale)
 {
         return (explode_locale (locale, NULL, NULL, NULL, NULL) & COMPONENT_LANGUAGE);
 }
+
+gboolean
+verify_locale (const char *locale)
+{
+        if (locale && *locale == '\0')
+                return TRUE;
+        return verify_xpg_locale (locale);
+}
diff --git a/src/util.h b/src/util.h
index c51887e..a42d0ed 100644
--- a/src/util.h
+++ b/src/util.h
@@ -44,6 +44,7 @@ gint get_user_groups (const gchar  *username,
                       gid_t       **groups);
 
 gboolean verify_xpg_locale (const char *locale);
+gboolean verify_locale     (const char *locale);
 
 G_END_DECLS
 
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