initial check-in, version 0.5.0

src/network/gethostbyaddr.c

@@ -0,0 +1,15 @@
+#define _GNU_SOURCE
+
+#include <netdb.h>
+#include <string.h>
+#include <netinet/in.h>
+
+struct hostent *gethostbyaddr(const void *a, socklen_t l, int af)
+{
+	static struct hostent h;
+	static long buf[512/sizeof(long)];
+	struct hostent *res;
+	if (gethostbyaddr_r(a, l, af, &h,
+		(void *)buf, sizeof buf, &res, &h_errno)) return 0;
+	return &h;
+}