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kc3-lang/libevent/test/regress_testutils.c
Nick Mathewson
- test/regress_testutils.c
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/* * Copyright (c) 2010-2011 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); }