2 files changed, 17 insertions, 0 deletions
diff --git a/nsswitch/libwbclient/wbclient.c b/nsswitch/libwbclient/wbclient.c
index 99248710e6..fa51cbd8cb 100644
--- a/nsswitch/libwbclient/wbclient.c
+++ b/nsswitch/libwbclient/wbclient.c
@@ -219,6 +219,22 @@ char *wbcStrDup(const char *str)
 	return result;
 }
 
+static void wbcStringArrayDestructor(void *ptr)
+{
+	char **p = (char **)ptr;
+	while (*p != NULL) {
+		free(*p);
+		p += 1;
+	}
+}
+
+const char **wbcAllocateStringArray(int num_strings)
+{
+	return (const char **)wbcAllocateMemory(
+		num_strings + 1, sizeof(const char *),
+		wbcStringArrayDestructor);
+}
+
 wbcErr wbcLibraryDetails(struct wbcLibraryDetails **_details)
 {
 	struct wbcLibraryDetails *info;
diff --git a/nsswitch/libwbclient/wbclient_internal.h b/nsswitch/libwbclient/wbclient_internal.h
index 78178cbafe..31f413057e 100644
--- a/nsswitch/libwbclient/wbclient_internal.h
+++ b/nsswitch/libwbclient/wbclient_internal.h
@@ -36,5 +36,6 @@ void *wbcAllocateMemory(size_t nelem, size_t elsize,
 			void (*destructor)(void *ptr));
 
 char *wbcStrDup(const char *str);
+const char **wbcAllocateStringArray(int num_strings);
 
 #endif      /* _WBCLIENT_INTERNAL_H */