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authorDavid Gibson <david@gibson.dropbear.id.au>2024-02-28 22:25:02 +1100
committerStefano Brivio <sbrivio@redhat.com>2024-02-29 09:47:25 +0100
commit330b5db77d4c73b0fad0467e6268c08c4176312e (patch)
tree55d897e629d7cc5db374762b799ccb4fa5541976 /inany.c
parentd31277e292281aa7e61d3785f56af1c956520786 (diff)
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inany: Add inany_ntop() helper
Add this helper to format an inany into either IPv4 or IPv6 text format as appropriate. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'inany.c')
-rw-r--r--inany.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/inany.c b/inany.c
new file mode 100644
index 0000000..edf0b05
--- /dev/null
+++ b/inany.c
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright Red Hat
+ * Author: David Gibson <david@gibson.dropbear.id.au>
+ *
+ * inany.c - Types and helpers for handling addresses which could be
+ * IPv6 or IPv4 (encoded as IPv4-mapped IPv6 addresses)
+ */
+
+#include <stdlib.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "util.h"
+#include "siphash.h"
+#include "inany.h"
+
+/** inany_ntop - Convert an IPv[46] address to text format
+ * @src: IPv[46] address
+ * @dst: output buffer, minimum INANY_ADDRSTRLEN bytes
+ * @size: size of buffer at @dst
+ *
+ * Return: On success, a non-null pointer to @dst, NULL on failure
+ */
+/* cppcheck-suppress unusedFunction */
+const char *inany_ntop(const union inany_addr *src, char *dst, socklen_t size)
+{
+ const struct in_addr *v4 = inany_v4(src);
+
+ if (v4)
+ return inet_ntop(AF_INET, v4, dst, size);
+
+ return inet_ntop(AF_INET6, &src->a6, dst, size);
+}