--- /dev/null
+/*
+ * Copyright (c) 2010-2012 Niels Provos and Nick Mathewson
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef WIN32
+#include <winsock2.h>
+#include <windows.h>
+#include <ws2tcpip.h>
+#endif
+
+#include "event2/event-config.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef _EVENT_HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#include <sys/queue.h>
+#ifndef WIN32
+#include <sys/socket.h>
+#include <signal.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#endif
+#ifdef _EVENT_HAVE_NETINET_IN6_H
+#include <netinet/in6.h>
+#endif
+#ifdef HAVE_NETDB_H
+#include <netdb.h>
+#endif
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#include "event2/dns.h"
+#include "event2/dns_struct.h"
+#include "event2/event.h"
+#include "event2/event_compat.h"
+#include "event2/util.h"
+#include "event2/listener.h"
+#include "event2/bufferevent.h"
+#include "log-internal.h"
+#include "regress.h"
+#include "regress_testutils.h"
+
+#include "../util-internal.h"
+
+/* globals */
+static struct evdns_server_port *dns_port;
+evutil_socket_t dns_sock = -1;
+
+/* Helper: return the port that a socket is bound on, in host order. */
+int
+regress_get_socket_port(evutil_socket_t fd)
+{
+ struct sockaddr_storage ss;
+ ev_socklen_t socklen = sizeof(ss);
+ if (getsockname(fd, (struct sockaddr*)&ss, &socklen) != 0)
+ return -1;
+ if (ss.ss_family == AF_INET)
+ return ntohs( ((struct sockaddr_in*)&ss)->sin_port);
+ else if (ss.ss_family == AF_INET6)
+ return ntohs( ((struct sockaddr_in6*)&ss)->sin6_port);
+ else
+ return -1;
+}
+
+struct evdns_server_port *
+regress_get_dnsserver(struct event_base *base,
+ ev_uint16_t *portnum,
+ evutil_socket_t *psock,
+ evdns_request_callback_fn_type cb,
+ void *arg)
+{
+ struct evdns_server_port *port = NULL;
+ evutil_socket_t sock;
+ struct sockaddr_in my_addr;
+
+ sock = socket(AF_INET, SOCK_DGRAM, 0);
+ if (sock <= 0) {
+ tt_abort_perror("socket");
+ }
+
+ evutil_make_socket_nonblocking(sock);
+
+ memset(&my_addr, 0, sizeof(my_addr));
+ my_addr.sin_family = AF_INET;
+ my_addr.sin_port = htons(*portnum);
+ my_addr.sin_addr.s_addr = htonl(0x7f000001UL);
+ if (bind(sock, (struct sockaddr*)&my_addr, sizeof(my_addr)) < 0) {
+ tt_abort_perror("bind");
+ }
+ port = evdns_add_server_port_with_base(base, sock, 0, cb, arg);
+ if (!*portnum)
+ *portnum = regress_get_socket_port(sock);
+ if (psock)
+ *psock = sock;
+
+ return port;
+end:
+ return NULL;
+}
+
+void
+regress_clean_dnsserver(void)
+{
+ if (dns_port)
+ evdns_close_server_port(dns_port);
+ if (dns_sock >= 0)
+ evutil_closesocket(dns_sock);
+}
+
+void
+regress_dns_server_cb(struct evdns_server_request *req, void *data)
+{
+ struct regress_dns_server_table *tab = data;
+ const char *question;
+
+ if (req->nquestions != 1)
+ TT_DIE(("Only handling one question at a time; got %d",
+ req->nquestions));
+
+ question = req->questions[0]->name;
+
+ while (tab->q && evutil_ascii_strcasecmp(question, tab->q) &&
+ strcmp("*", tab->q))
+ ++tab;
+ if (tab->q == NULL)
+ TT_DIE(("Unexpected question: '%s'", question));
+
+ ++tab->seen;
+
+ if (!strcmp(tab->anstype, "err")) {
+ int err = atoi(tab->ans);
+ tt_assert(! evdns_server_request_respond(req, err));
+ return;
+ } else if (!strcmp(tab->anstype, "errsoa")) {
+ int err = atoi(tab->ans);
+ char soa_record[] =
+ "\x04" "dns1" "\x05" "icann" "\x03" "org" "\0"
+ "\x0a" "hostmaster" "\x05" "icann" "\x03" "org" "\0"
+ "\x77\xde\x5e\xba" /* serial */
+ "\x00\x00\x1c\x20" /* refreshtime = 2h */
+ "\x00\x00\x0e\x10" /* retry = 1h */
+ "\x00\x12\x75\x00" /* expiration = 14d */
+ "\x00\x00\x0e\x10" /* min.ttl = 1h */
+ ;
+ evdns_server_request_add_reply(
+ req, EVDNS_AUTHORITY_SECTION,
+ "example.com", EVDNS_TYPE_SOA, EVDNS_CLASS_INET,
+ 42, sizeof(soa_record) - 1, 0, soa_record);
+ tt_assert(! evdns_server_request_respond(req, err));
+ return;
+ } else if (!strcmp(tab->anstype, "A")) {
+ struct in_addr in;
+ evutil_inet_pton(AF_INET, tab->ans, &in);
+ evdns_server_request_add_a_reply(req, question, 1, &in.s_addr,
+ 100);
+ } else if (!strcmp(tab->anstype, "AAAA")) {
+ struct in6_addr in6;
+ evutil_inet_pton(AF_INET6, tab->ans, &in6);
+ evdns_server_request_add_aaaa_reply(req,
+ question, 1, &in6.s6_addr, 100);
+ } else {
+ TT_DIE(("Weird table entry with type '%s'", tab->anstype));
+ }
+ tt_assert(! evdns_server_request_respond(req, 0))
+ return;
+end:
+ tt_want(! evdns_server_request_drop(req));
+}
+
+int
+regress_dnsserver(struct event_base *base, ev_uint16_t *port,
+ struct regress_dns_server_table *search_table)
+{
+ dns_port = regress_get_dnsserver(base, port, &dns_sock,
+ regress_dns_server_cb, search_table);
+ return dns_port != NULL;
+}
+
+int
+regress_get_listener_addr(struct evconnlistener *lev,
+ struct sockaddr *sa, ev_socklen_t *socklen)
+{
+ evutil_socket_t s = evconnlistener_get_fd(lev);
+ if (s <= 0)
+ return -1;
+ return getsockname(s, sa, socklen);
+}
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