-/**/
+/*
+ * event.c
+ * - event loop core
+ * - TCP connection management
+ * - user-visible check/wait and event-loop-related functions
+ */
+/*
+ * This file is part of adns, which is Copyright (C) 1997, 1998 Ian Jackson
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
#include <string.h>
#include <errno.h>
assert(ads->tcpstate == server_connecting || ads->tcpstate == server_ok);
serv= ads->tcpserver;
- adns__warn(ads,serv,"TCP connection lost: %s: %s",what,why);
+ adns__warn(ads,serv,0,"TCP connection lost: %s: %s",what,why);
close(ads->tcpsocket);
ads->tcpstate= server_disconnected;
qu->tcpfailed |= (1<<serv);
if (qu->tcpfailed == (1<<ads->nservers)-1) {
LIST_UNLINK(ads->timew,qu);
- adns__query_fail(ads,qu,adns_s_allservfail);
+ adns__query_fail(qu,adns_s_allservfail);
}
}
static void tcp_connected(adns_state ads, struct timeval now) {
adns_query qu, nqu;
- adns__debug(ads,ads->tcpserver,"TCP connected");
+ adns__debug(ads,ads->tcpserver,0,"TCP connected");
ads->tcpstate= server_ok;
for (qu= ads->timew.head; qu; qu= nqu) {
nqu= qu->next;
if (qu->state == query_udp) continue;
assert (qu->state == query_tcpwait);
- adns__query_tcp(ads,qu,now);
+ adns__query_tcp(qu,now);
}
}
assert(!ads->tcprecv.used);
proto= getprotobyname("tcp");
- if (!proto) { adns__diag(ads,-1,"unable to find protocol no. for TCP !"); return; }
+ if (!proto) { adns__diag(ads,-1,0,"unable to find protocol no. for TCP !"); return; }
fd= socket(AF_INET,SOCK_STREAM,proto->p_proto);
if (fd<0) {
- adns__diag(ads,-1,"cannot create TCP socket: %s",strerror(errno));
+ adns__diag(ads,-1,0,"cannot create TCP socket: %s",strerror(errno));
return;
}
r= adns__setnonblock(ads,fd);
if (r) {
- adns__diag(ads,-1,"cannot make TCP socket nonblocking: %s",strerror(r));
+ adns__diag(ads,-1,0,"cannot make TCP socket nonblocking: %s",strerror(r));
close(fd);
return;
}
if (timercmp(&now,&qu->timeout,>)) {
LIST_UNLINK(ads->timew,qu);
if (qu->state != query_udp) {
- adns__query_fail(ads,qu,adns_s_timeout);
+ adns__query_fail(qu,adns_s_timeout);
} else {
- adns__query_udp(ads,qu,now);
+ adns__query_udp(qu,now);
}
} else {
inter_maxtoabs(tv_io,tvbuf,now,qu->timeout);
r= gettimeofday(&now,0);
if (r) {
- adns__warn(ads,-1,"gettimeofday failed - will sleep for a bit: %s",strerror(errno));
+ adns__warn(ads,-1,0,"gettimeofday failed - will sleep for a bit: %s",
+ strerror(errno));
timerclear(&tvto_lr); timevaladd(&tvto_lr,LOCALRESOURCEMS);
inter_maxto(tv_io, tvbuf, tvto_lr);
} else {
if (r<0) {
if (!(errno == EAGAIN || errno == EWOULDBLOCK ||
errno == EINTR || errno == ENOMEM || errno == ENOBUFS))
- adns__warn(ads,-1,"datagram receive error: %s",strerror(errno));
+ adns__warn(ads,-1,0,"datagram receive error: %s",strerror(errno));
break;
}
if (udpaddrlen != sizeof(udpaddr)) {
- adns__diag(ads,-1,"datagram received with wrong address length %d (expected %d)",
- udpaddrlen,sizeof(udpaddr));
+ adns__diag(ads,-1,0,"datagram received with wrong address length %d"
+ " (expected %d)", udpaddrlen,sizeof(udpaddr));
continue;
}
if (udpaddr.sin_family != AF_INET) {
- adns__diag(ads,-1,"datagram received with wrong protocol family"
+ adns__diag(ads,-1,0,"datagram received with wrong protocol family"
" %u (expected %u)",udpaddr.sin_family,AF_INET);
continue;
}
if (ntohs(udpaddr.sin_port) != DNS_PORT) {
- adns__diag(ads,-1,"datagram received from wrong port %u (expected %u)",
+ adns__diag(ads,-1,0,"datagram received from wrong port %u (expected %u)",
ntohs(udpaddr.sin_port),DNS_PORT);
continue;
}
ads->servers[serv].addr.s_addr != udpaddr.sin_addr.s_addr;
serv++);
if (serv >= ads->nservers) {
- adns__warn(ads,-1,"datagram received from unknown nameserver %s",
+ adns__warn(ads,-1,0,"datagram received from unknown nameserver %s",
inet_ntoa(udpaddr.sin_addr));
continue;
}