outline stuff from arpa/inet.h

1 files changed, 34 insertions, 0 deletions

diff --git a/src/arpa/inet/inet_ntop.c b/src/arpa/inet/inet_ntop.c
new file mode 100644
index 00000000..0a89cedf
--- /dev/null
+++ b/src/arpa/inet/inet_ntop.c
@@ -0,0 +1,34 @@
+#include <arpa/inet.h>
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+const char *inet_ntop(int af, const void *restrict src, char *restrict dst, socklen_t size)
+{
+	if (af == AF_INET) {
+		in_addr_t *a = src;
+		char s[INET_ADDRSTRLEN] = "";
+		if (snprintf(s, sizeof(s), "%hhu.%hhu.%hhu.%hhu",
+			(*src >> 24) & 0xff,
+			(*src >> 16) & 0xff,
+			(*src >> 8) & 0xff,
+			(*src) & 0xff) > size) {
+			errno = ENOSPC;
+			return NULL;
+		}
+		strcpy(dst, s);
+		return dst;
+	}
+
+	if (af != AF_INET6) {
+		errno = EAFNOSUPPORT;
+		return NULL;
+	}
+
+	/*
+	char s[INET6_ADDRSTRLEN] = "";
+	unsigned char *a = src;
+	*/
+	/* do IPv6 conversion */
+	return dst;
+}