From 3dfddc18a53601463da49451c05cc62869773e16 Mon Sep 17 00:00:00 2001
From: Thomas Haller <thaller@redhat.com>
Date: Thu, 25 May 2017 14:53:03 +0200
Subject: [PATCH] ifcfg-rh: add svFindFirstKeyWithPrefix() function

During backporting manually patched to use GList instead of CList.

(cherry picked from commit e9d960740af008acb91074b31a570fba17dc0344)
---
 src/settings/plugins/ifcfg-rh/shvar.c | 22 ++++++++++++++++++++++
 src/settings/plugins/ifcfg-rh/shvar.h |  2 ++
 2 files changed, 24 insertions(+)

diff --git a/src/settings/plugins/ifcfg-rh/shvar.c b/src/settings/plugins/ifcfg-rh/shvar.c
index 9fce5aa117..47ad5a23f1 100644
--- a/src/settings/plugins/ifcfg-rh/shvar.c
+++ b/src/settings/plugins/ifcfg-rh/shvar.c
@@ -905,6 +905,28 @@ svGetKeys (shvarFile *s)
 
 /*****************************************************************************/
 
+const char *
+svFindFirstKeyWithPrefix (shvarFile *s, const char *key_prefix)
+{
+	const GList *current;
+	const shvarLine *l;
+
+	g_return_val_if_fail (s, NULL);
+	g_return_val_if_fail (key_prefix, NULL);
+
+	for (current = s->lineList; current; current = current->next) {
+		l = current->data;
+		if (   l->key
+		    && l->line
+		    && g_str_has_prefix (l->key, key_prefix))
+			return l->key;
+	}
+
+	return NULL;
+}
+
+/*****************************************************************************/
+
 static const char *
 _svGetValue (shvarFile *s, const char *key, char **to_free)
 {
diff --git a/src/settings/plugins/ifcfg-rh/shvar.h b/src/settings/plugins/ifcfg-rh/shvar.h
index 9d8c2364a3..a13920a18c 100644
--- a/src/settings/plugins/ifcfg-rh/shvar.h
+++ b/src/settings/plugins/ifcfg-rh/shvar.h
@@ -44,6 +44,8 @@ shvarFile *svCreateFile (const char *name);
 /* Open the file <name>, return shvarFile on success, NULL on failure */
 shvarFile *svOpenFile (const char *name, GError **error);
 
+const char *svFindFirstKeyWithPrefix (shvarFile *s, const char *key_prefix);
+
 /* Get the value associated with the key, and leave the current pointer
  * pointing at the line containing the value.  The char* returned MUST
  * be freed by the caller.