shared: add nm_utils_strv_make_deep_copied() helper

At several places we create strv arrays where the
strings themself are not deep-copied.

This helper function iterates over such an "const char **"
array, clones the strings, and updates the strv array
inplace to be a "char **" strv array.

This helper function is to reduce code duplication.

1 files changed, 17 insertions, 0 deletions

diff --git a/shared/nm-utils/nm-shared-utils.c b/shared/nm-utils/nm-shared-utils.c
index 8a7890b093..25b867538c 100644
--- a/shared/nm-utils/nm-shared-utils.c
+++ b/shared/nm-utils/nm-shared-utils.c
@@ -1175,3 +1175,20 @@ nm_utils_strdict_get_keys (const GHashTable *hash,
 	NM_SET_OUT (out_length, length);
 	return names;
 }
+
+char **
+nm_utils_strv_make_deep_copied (const char **strv)
+{
+	gsize i;
+
+	/* it takes a strv dictionary, and copies each
+	 * strings. Note that this updates @strv *in-place*
+	 * and returns it. */
+
+	if (!strv)
+		return NULL;
+	for (i = 0; strv[i]; i++)
+		strv[i] = g_strdup (strv[i]);
+
+	return (char **) strv;
+}