1 files changed, 134 insertions, 0 deletions
diff --git a/openbsd-compat/libasr/getnetnamadr.c b/openbsd-compat/libasr/getnetnamadr.c
new file mode 100644
index 00000000..141b4a9a
--- /dev/null
+++ b/openbsd-compat/libasr/getnetnamadr.c
@@ -0,0 +1,134 @@
+/*	$OpenBSD: getnetnamadr.c,v 1.9 2015/01/16 16:48:51 deraadt Exp $	*/
+/*
+ * Copyright (c) 2012 Eric Faurot <eric@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>	/* ALIGN */
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netdb.h>
+
+#include <asr.h>
+#include <errno.h>
+#include <resolv.h>
+#include <stdlib.h>
+#include <string.h>
+
+static void _fillnetent(const struct netent *, struct netent *, char *buf,
+    size_t);
+
+static struct netent	 _netent;
+static char		 _entbuf[4096];
+
+static char *_empty[] = { NULL, };
+
+static void
+_fillnetent(const struct netent *e, struct netent *r, char *buf, size_t len)
+{
+	char	**ptr, *end, *pos;
+	size_t	n, i;
+	int	naliases;
+
+	bzero(buf, len);
+	bzero(r, sizeof(*r));
+	r->n_aliases = _empty;
+
+	end = buf + len;
+	ptr = (char **)ALIGN(buf);
+
+	if ((char *)ptr >= end)
+		return;
+
+	for (naliases = 0; e->n_aliases[naliases]; naliases++)
+		;
+
+	r->n_name = NULL;
+	r->n_addrtype = e->n_addrtype;
+	r->n_net = e->n_net;
+	r->n_aliases = ptr;
+
+	pos = (char *)(ptr + (naliases + 1));
+	if (pos > end)
+		r->n_aliases = _empty;
+
+	n = strlcpy(pos, e->n_name, end - pos);
+	if (n >= end - pos)
+		return;
+	r->n_name = pos;
+	pos += n + 1;
+
+	for (i = 0; i < naliases; i++) {
+		n = strlcpy(pos, e->n_aliases[i], end - pos);
+		if (n >= end - pos)
+			return;
+		r->n_aliases[i] = pos;
+		pos += n + 1;
+	}
+}
+
+struct netent *
+getnetbyname(const char *name)
+{
+	struct asr_query *as;
+	struct asr_result ar;
+
+	res_init();
+
+	as = getnetbyname_async(name, NULL);
+	if (as == NULL) {
+		h_errno = NETDB_INTERNAL;
+		return (NULL);
+	}
+
+	asr_run_sync(as, &ar);
+
+	errno = ar.ar_errno;
+	h_errno = ar.ar_h_errno;
+	if (ar.ar_netent == NULL)
+		return (NULL);
+
+	_fillnetent(ar.ar_netent, &_netent, _entbuf, sizeof(_entbuf));
+	free(ar.ar_netent);
+
+	return (&_netent);
+}
+
+struct netent *
+getnetbyaddr(in_addr_t net, int type)
+{
+	struct asr_query *as;
+	struct asr_result ar;
+
+	res_init();
+
+	as = getnetbyaddr_async(net, type, NULL);
+	if (as == NULL) {
+		h_errno = NETDB_INTERNAL;
+		return (NULL);
+	}
+
+	asr_run_sync(as, &ar);
+
+	errno = ar.ar_errno;
+	h_errno = ar.ar_h_errno;
+	if (ar.ar_netent == NULL)
+		return (NULL);
+
+	_fillnetent(ar.ar_netent, &_netent, _entbuf, sizeof(_entbuf));
+	free(ar.ar_netent);
+
+	return (&_netent);
+}