From be9a5ab308f13977f07a33135b3792ccbd1d6e67 Mon Sep 17 00:00:00 2001
From: Thomas Haller <thaller@redhat.com>
Date: Wed, 11 Apr 2018 14:10:22 +0200
Subject: [PATCH] shared: add nm_utils_strv_sort() helper

---
 shared/nm-utils/nm-shared-utils.c | 35 +++++++++++++++++++++++++++++++
 shared/nm-utils/nm-shared-utils.h |  3 +++
 2 files changed, 38 insertions(+)

diff --git a/shared/nm-utils/nm-shared-utils.c b/shared/nm-utils/nm-shared-utils.c
index ca5238b42b..582ccfffcf 100644
--- a/shared/nm-utils/nm-shared-utils.c
+++ b/shared/nm-utils/nm-shared-utils.c
@@ -1274,3 +1274,38 @@ fail:
 	NM_SET_OUT (out_ppid, 0);
 	return 0;
 }
+
+/*****************************************************************************/
+
+/**
+ * _nm_utils_strv_sort:
+ * @strv: pointer containing strings that will be sorted
+ *   in-place, %NULL is allowed, unless @len indicates
+ *   that there are more elements.
+ * @len: the number of elements in strv. If negative,
+ *   strv must be a NULL terminated array and the length
+ *   will be calculated first. If @len is a positive
+ *   number, all first @len elements in @strv must be
+ *   non-NULL, valid strings.
+ *
+ * Ascending sort of the array @strv inplace, using plain strcmp() string
+ * comparison.
+ */
+void
+_nm_utils_strv_sort (const char **strv, gssize len)
+{
+	gsize l;
+
+	l = len < 0 ? (gsize) NM_PTRARRAY_LEN (strv) : (gsize) len;
+
+	if (l <= 1)
+		return;
+
+	nm_assert (l <= (gsize) G_MAXINT);
+
+	g_qsort_with_data (strv,
+	                   l,
+	                   sizeof (const char *),
+	                   nm_strcmp_p_with_data,
+	                   NULL);
+}
diff --git a/shared/nm-utils/nm-shared-utils.h b/shared/nm-utils/nm-shared-utils.h
index af897171ed..9f86a15170 100644
--- a/shared/nm-utils/nm-shared-utils.h
+++ b/shared/nm-utils/nm-shared-utils.h
@@ -484,6 +484,9 @@ nm_utils_strv_make_deep_copied_nonnull (const char **strv)
 	return nm_utils_strv_make_deep_copied (strv) ?: g_new0 (char *, 1);
 }
 
+void _nm_utils_strv_sort (const char **strv, gssize len);
+#define nm_utils_strv_sort(strv, len) _nm_utils_strv_sort (NM_CAST_STRV_MC (strv), len)
+
 /*****************************************************************************/
 
 #define NM_UTILS_NS_PER_SECOND  ((gint64) 1000000000)