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Diffstat (limited to 'adns-0.6/src/event.c')
-rw-r--r--adns-0.6/src/event.c699
1 files changed, 0 insertions, 699 deletions
diff --git a/adns-0.6/src/event.c b/adns-0.6/src/event.c
deleted file mode 100644
index a1641c6..0000000
--- a/adns-0.6/src/event.c
+++ /dev/null
@@ -1,699 +0,0 @@
-/*
- * event.c
- * - event loop core
- * - TCP connection management
- * - user-visible check/wait and event-loop-related functions
- */
-/*
- * This file is
- * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
- *
- * It is part of adns, which is
- * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
- * Copyright (C) 1999 Tony Finch <dot@dotat.at>
- *
- * 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 <errno.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <sys/types.h>
-#include <sys/time.h>
-#include <netdb.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include "internal.h"
-#include "tvarith.h"
-
-/* TCP connection management. */
-
-static void tcp_close(adns_state ads) {
- int serv;
-
- serv= ads->tcpserver;
- close(ads->tcpsocket);
- ads->tcpsocket= -1;
- ads->tcprecv.used= ads->tcprecv_skip= ads->tcpsend.used= 0;
-}
-
-void adns__tcp_broken(adns_state ads, const char *what, const char *why) {
- int serv;
-
- assert(ads->tcpstate == server_connecting || ads->tcpstate == server_ok);
- serv= ads->tcpserver;
- if (what) adns__warn(ads,serv,0,"TCP connection failed: %s: %s",what,why);
-
- tcp_close(ads);
- ads->tcpstate= server_broken;
- ads->tcpserver= (serv+1)%ads->nservers;
-}
-
-static void tcp_connected(adns_state ads, struct timeval now) {
- adns_query qu, nqu;
-
- adns__debug(ads,ads->tcpserver,0,"TCP connected");
- ads->tcpstate= server_ok;
- for (qu= ads->tcpw.head; qu && ads->tcpstate == server_ok; qu= nqu) {
- nqu= qu->next;
- assert(qu->state == query_tcpw);
- adns__querysend_tcp(qu,now);
- }
-}
-
-void adns__tcp_tryconnect(adns_state ads, struct timeval now) {
- int r, fd, tries;
- struct sockaddr_in addr;
- struct protoent *proto;
-
- for (tries=0; tries<ads->nservers; tries++) {
- switch (ads->tcpstate) {
- case server_connecting:
- case server_ok:
- case server_broken:
- return;
- case server_disconnected:
- break;
- default:
- abort();
- }
-
- assert(!ads->tcpsend.used);
- assert(!ads->tcprecv.used);
- assert(!ads->tcprecv_skip);
-
- proto= getprotobyname("tcp");
- 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,-1,0,"cannot create TCP socket: %s",strerror(errno));
- return;
- }
- r= adns__setnonblock(ads,fd);
- if (r) {
- adns__diag(ads,-1,0,"cannot make TCP socket nonblocking: %s",strerror(r));
- close(fd);
- return;
- }
- memset(&addr,0,sizeof(addr));
- addr.sin_family= AF_INET;
- addr.sin_port= htons(DNS_PORT);
- addr.sin_addr= ads->servers[ads->tcpserver].addr;
- r= connect(fd,(const struct sockaddr*)&addr,sizeof(addr));
- ads->tcpsocket= fd;
- ads->tcpstate= server_connecting;
- if (r==0) { tcp_connected(ads,now); return; }
- if (errno == EWOULDBLOCK || errno == EINPROGRESS) {
- ads->tcptimeout= now;
- timevaladd(&ads->tcptimeout,TCPCONNMS);
- return;
- }
- adns__tcp_broken(ads,"connect",strerror(errno));
- ads->tcpstate= server_disconnected;
- }
-}
-
-/* Timeout handling functions. */
-
-void adns__must_gettimeofday(adns_state ads, const struct timeval **now_io,
- struct timeval *tv_buf) {
- const struct timeval *now;
- int r;
-
- now= *now_io;
- if (now) return;
- r= gettimeofday(tv_buf,0); if (!r) { *now_io= tv_buf; return; }
- adns__diag(ads,-1,0,"gettimeofday failed: %s",strerror(errno));
- adns_globalsystemfailure(ads);
- return;
-}
-
-static void inter_maxto(struct timeval **tv_io, struct timeval *tvbuf,
- struct timeval maxto) {
- struct timeval *rbuf;
-
- if (!tv_io) return;
- rbuf= *tv_io;
- if (!rbuf) {
- *tvbuf= maxto; *tv_io= tvbuf;
- } else {
- if (timercmp(rbuf,&maxto,>)) *rbuf= maxto;
- }
-/*fprintf(stderr,"inter_maxto maxto=%ld.%06ld result=%ld.%06ld\n",
- maxto.tv_sec,maxto.tv_usec,(**tv_io).tv_sec,(**tv_io).tv_usec);*/
-}
-
-static void inter_maxtoabs(struct timeval **tv_io, struct timeval *tvbuf,
- struct timeval now, struct timeval maxtime) {
- /* tv_io may be 0 */
- ldiv_t dr;
-
-/*fprintf(stderr,"inter_maxtoabs now=%ld.%06ld maxtime=%ld.%06ld\n",
- now.tv_sec,now.tv_usec,maxtime.tv_sec,maxtime.tv_usec);*/
- if (!tv_io) return;
- maxtime.tv_sec -= (now.tv_sec+2);
- maxtime.tv_usec -= (now.tv_usec-2000000);
- dr= ldiv(maxtime.tv_usec,1000000);
- maxtime.tv_sec += dr.quot;
- maxtime.tv_usec -= dr.quot*1000000;
- if (maxtime.tv_sec<0) timerclear(&maxtime);
- inter_maxto(tv_io,tvbuf,maxtime);
-}
-
-static void timeouts_queue(adns_state ads, int act,
- struct timeval **tv_io, struct timeval *tvbuf,
- struct timeval now, struct query_queue *queue) {
- adns_query qu, nqu;
-
- for (qu= queue->head; qu; qu= nqu) {
- nqu= qu->next;
- if (!timercmp(&now,&qu->timeout,>)) {
- inter_maxtoabs(tv_io,tvbuf,now,qu->timeout);
- } else {
- if (!act) {
- tvbuf->tv_sec= 0;
- tvbuf->tv_usec= 0;
- *tv_io= tvbuf;
- return;
- }
- LIST_UNLINK(*queue,qu);
- if (qu->state != query_tosend) {
- adns__query_fail(qu,adns_s_timeout);
- } else {
- adns__query_send(qu,now);
- }
- nqu= queue->head;
- }
- }
-}
-
-static void tcp_events(adns_state ads, int act,
- struct timeval **tv_io, struct timeval *tvbuf,
- struct timeval now) {
- adns_query qu, nqu;
-
- for (;;) {
- switch (ads->tcpstate) {
- case server_broken:
- for (qu= ads->tcpw.head; qu; qu= nqu) {
- nqu= qu->next;
- assert(qu->state == query_tcpw);
- if (qu->retries > ads->nservers) {
- LIST_UNLINK(ads->tcpw,qu);
- adns__query_fail(qu,adns_s_allservfail);
- }
- }
- ads->tcpstate= server_disconnected;
- case server_disconnected: /* fall through */
- if (!ads->tcpw.head) return;
- adns__tcp_tryconnect(ads,now);
- break;
- case server_ok:
- if (ads->tcpw.head) return;
- if (!ads->tcptimeout.tv_sec) {
- assert(!ads->tcptimeout.tv_usec);
- ads->tcptimeout= now;
- timevaladd(&ads->tcptimeout,TCPIDLEMS);
- }
- case server_connecting: /* fall through */
- if (!timercmp(&now,&ads->tcptimeout,>)) {
- inter_maxtoabs(tv_io,tvbuf,now,ads->tcptimeout);
- return;
- } {
- /* TCP timeout has happened */
- switch (ads->tcpstate) {
- case server_connecting: /* failed to connect */
- adns__tcp_broken(ads,"unable to make connection","timed out");
- break;
- case server_ok: /* idle timeout */
- tcp_close(ads);
- ads->tcpstate= server_disconnected;
- return;
- default:
- abort();
- }
- }
- break;
- default:
- abort();
- }
- }
-}
-
-void adns__timeouts(adns_state ads, int act,
- struct timeval **tv_io, struct timeval *tvbuf,
- struct timeval now) {
- timeouts_queue(ads,act,tv_io,tvbuf,now, &ads->udpw);
- timeouts_queue(ads,act,tv_io,tvbuf,now, &ads->tcpw);
- tcp_events(ads,act,tv_io,tvbuf,now);
-}
-
-void adns_firsttimeout(adns_state ads,
- struct timeval **tv_io, struct timeval *tvbuf,
- struct timeval now) {
- adns__consistency(ads,0,cc_entex);
- adns__timeouts(ads, 0, tv_io,tvbuf, now);
- adns__consistency(ads,0,cc_entex);
-}
-
-void adns_processtimeouts(adns_state ads, const struct timeval *now) {
- struct timeval tv_buf;
-
- adns__consistency(ads,0,cc_entex);
- adns__must_gettimeofday(ads,&now,&tv_buf);
- if (now) adns__timeouts(ads, 1, 0,0, *now);
- adns__consistency(ads,0,cc_entex);
-}
-
-/* fd handling functions. These are the top-level of the real work of
- * reception and often transmission.
- */
-
-int adns__pollfds(adns_state ads, struct pollfd pollfds_buf[MAX_POLLFDS]) {
- /* Returns the number of entries filled in. Always zeroes revents. */
-
- assert(MAX_POLLFDS==2);
-
- pollfds_buf[0].fd= ads->udpsocket;
- pollfds_buf[0].events= POLLIN;
- pollfds_buf[0].revents= 0;
-
- switch (ads->tcpstate) {
- case server_disconnected:
- return 1;
- case server_connecting:
- pollfds_buf[1].events= POLLOUT;
- break;
- case server_ok:
- pollfds_buf[1].events= ads->tcpsend.used ? POLLIN|POLLOUT|POLLPRI : POLLIN|POLLPRI;
- break;
- default:
- abort();
- }
- pollfds_buf[1].fd= ads->tcpsocket;
- return 2;
-}
-
-int adns_processreadable(adns_state ads, int fd, const struct timeval *now) {
- int want, dgramlen, r, udpaddrlen, serv, old_skip;
- byte udpbuf[DNS_MAXUDP];
- struct sockaddr_in udpaddr;
-
- adns__consistency(ads,0,cc_entex);
-
- switch (ads->tcpstate) {
- case server_disconnected:
- case server_connecting:
- break;
- case server_ok:
- if (fd != ads->tcpsocket) break;
- assert(!ads->tcprecv_skip);
- for (;;) {
- if (ads->tcprecv.used >= ads->tcprecv_skip+2) {
- dgramlen= ((ads->tcprecv.buf[ads->tcprecv_skip]<<8) |
- ads->tcprecv.buf[ads->tcprecv_skip+1]);
- if (ads->tcprecv.used >= ads->tcprecv_skip+2+dgramlen) {
- old_skip= ads->tcprecv_skip;
- ads->tcprecv_skip += 2+dgramlen;
- adns__procdgram(ads, ads->tcprecv.buf+old_skip+2,
- dgramlen, ads->tcpserver, 1,*now);
- continue;
- } else {
- want= 2+dgramlen;
- }
- } else {
- want= 2;
- }
- ads->tcprecv.used -= ads->tcprecv_skip;
- memmove(ads->tcprecv.buf,ads->tcprecv.buf+ads->tcprecv_skip,ads->tcprecv.used);
- ads->tcprecv_skip= 0;
- if (!adns__vbuf_ensure(&ads->tcprecv,want)) { r= ENOMEM; goto xit; }
- assert(ads->tcprecv.used <= ads->tcprecv.avail);
- if (ads->tcprecv.used == ads->tcprecv.avail) continue;
- r= read(ads->tcpsocket,
- ads->tcprecv.buf+ads->tcprecv.used,
- ads->tcprecv.avail-ads->tcprecv.used);
- if (r>0) {
- ads->tcprecv.used+= r;
- } else {
- if (r) {
- if (errno==EAGAIN || errno==EWOULDBLOCK) { r= 0; goto xit; }
- if (errno==EINTR) continue;
- if (errno_resources(errno)) { r= errno; goto xit; }
- }
- adns__tcp_broken(ads,"read",r?strerror(errno):"closed");
- r= 0; goto xit;
- }
- } /* never reached */
- default:
- abort();
- }
- if (fd == ads->udpsocket) {
- for (;;) {
- udpaddrlen= sizeof(udpaddr);
- r= recvfrom(ads->udpsocket,udpbuf,sizeof(udpbuf),0,
- (struct sockaddr*)&udpaddr,&udpaddrlen);
- if (r<0) {
- if (errno == EAGAIN || errno == EWOULDBLOCK) { r= 0; goto xit; }
- if (errno == EINTR) continue;
- if (errno_resources(errno)) { r= errno; goto xit; }
- adns__warn(ads,-1,0,"datagram receive error: %s",strerror(errno));
- r= 0; goto xit;
- }
- if (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,-1,0,"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,-1,0,"datagram received from wrong port %u (expected %u)",
- ntohs(udpaddr.sin_port),DNS_PORT);
- continue;
- }
- for (serv= 0;
- serv < ads->nservers &&
- ads->servers[serv].addr.s_addr != udpaddr.sin_addr.s_addr;
- serv++);
- if (serv >= ads->nservers) {
- adns__warn(ads,-1,0,"datagram received from unknown nameserver %s",
- inet_ntoa(udpaddr.sin_addr));
- continue;
- }
- adns__procdgram(ads,udpbuf,r,serv,0,*now);
- }
- }
- r= 0;
-xit:
- adns__consistency(ads,0,cc_entex);
- return r;
-}
-
-int adns_processwriteable(adns_state ads, int fd, const struct timeval *now) {
- int r;
-
- adns__consistency(ads,0,cc_entex);
-
- switch (ads->tcpstate) {
- case server_disconnected:
- break;
- case server_connecting:
- if (fd != ads->tcpsocket) break;
- assert(ads->tcprecv.used==0);
- assert(ads->tcprecv_skip==0);
- for (;;) {
- if (!adns__vbuf_ensure(&ads->tcprecv,1)) { r= ENOMEM; goto xit; }
- r= read(ads->tcpsocket,&ads->tcprecv.buf,1);
- if (r==0 || (r<0 && (errno==EAGAIN || errno==EWOULDBLOCK))) {
- tcp_connected(ads,*now);
- r= 0; goto xit;
- }
- if (r>0) {
- adns__tcp_broken(ads,"connect/read","sent data before first request");
- r= 0; goto xit;
- }
- if (errno==EINTR) continue;
- if (errno_resources(errno)) { r= errno; goto xit; }
- adns__tcp_broken(ads,"connect/read",strerror(errno));
- r= 0; goto xit;
- } /* not reached */
- case server_ok:
- if (!(ads->tcpsend.used && fd == ads->tcpsocket)) break;
- for (;;) {
- adns__sigpipe_protect(ads);
- r= write(ads->tcpsocket,ads->tcpsend.buf,ads->tcpsend.used);
- adns__sigpipe_unprotect(ads);
- if (r<0) {
- if (errno==EINTR) continue;
- if (errno==EAGAIN || errno==EWOULDBLOCK) { r= 0; goto xit; }
- if (errno_resources(errno)) { r= errno; goto xit; }
- adns__tcp_broken(ads,"write",strerror(errno));
- r= 0; goto xit;
- } else if (r>0) {
- ads->tcpsend.used -= r;
- memmove(ads->tcpsend.buf,ads->tcpsend.buf+r,ads->tcpsend.used);
- }
- } /* not reached */
- default:
- abort();
- }
- r= 0;
-xit:
- adns__consistency(ads,0,cc_entex);
- return r;
-}
-
-int adns_processexceptional(adns_state ads, int fd, const struct timeval *now) {
- adns__consistency(ads,0,cc_entex);
- switch (ads->tcpstate) {
- case server_disconnected:
- break;
- case server_connecting:
- case server_ok:
- if (fd != ads->tcpsocket) break;
- adns__tcp_broken(ads,"poll/select","exceptional condition detected");
- break;
- default:
- abort();
- }
- adns__consistency(ads,0,cc_entex);
- return 0;
-}
-
-static void fd_event(adns_state ads, int fd,
- int revent, int pollflag,
- int maxfd, const fd_set *fds,
- int (*func)(adns_state, int fd, const struct timeval *now),
- struct timeval now, int *r_r) {
- int r;
-
- if (!(revent & pollflag)) return;
- if (fds && !(fd<maxfd && FD_ISSET(fd,fds))) return;
- r= func(ads,fd,&now);
- if (r) {
- if (r_r) {
- *r_r= r;
- } else {
- adns__diag(ads,-1,0,"process fd failed after select: %s",strerror(errno));
- adns_globalsystemfailure(ads);
- }
- }
-}
-
-void adns__fdevents(adns_state ads,
- const struct pollfd *pollfds, int npollfds,
- int maxfd, const fd_set *readfds,
- const fd_set *writefds, const fd_set *exceptfds,
- struct timeval now, int *r_r) {
- int i, fd, revents;
-
- for (i=0; i<npollfds; i++) {
- fd= pollfds[i].fd;
- if (fd >= maxfd) maxfd= fd+1;
- revents= pollfds[i].revents;
- fd_event(ads,fd, revents,POLLIN, maxfd,readfds, adns_processreadable,now,r_r);
- fd_event(ads,fd, revents,POLLOUT, maxfd,writefds, adns_processwriteable,now,r_r);
- fd_event(ads,fd, revents,POLLPRI, maxfd,exceptfds, adns_processexceptional,now,r_r);
- }
-}
-
-/* Wrappers for select(2). */
-
-void adns_beforeselect(adns_state ads, int *maxfd_io, fd_set *readfds_io,
- fd_set *writefds_io, fd_set *exceptfds_io,
- struct timeval **tv_mod, struct timeval *tv_tobuf,
- const struct timeval *now) {
- struct timeval tv_nowbuf;
- struct pollfd pollfds[MAX_POLLFDS];
- int i, fd, maxfd, npollfds;
-
- adns__consistency(ads,0,cc_entex);
-
- if (tv_mod && (!*tv_mod || (*tv_mod)->tv_sec || (*tv_mod)->tv_usec)) {
- /* The caller is planning to sleep. */
- adns__must_gettimeofday(ads,&now,&tv_nowbuf);
- if (!now) goto xit;
- adns__timeouts(ads, 1, tv_mod,tv_tobuf, *now);
- }
-
- npollfds= adns__pollfds(ads,pollfds);
- maxfd= *maxfd_io;
- for (i=0; i<npollfds; i++) {
- fd= pollfds[i].fd;
- if (fd >= maxfd) maxfd= fd+1;
- if (pollfds[i].events & POLLIN) FD_SET(fd,readfds_io);
- if (pollfds[i].events & POLLOUT) FD_SET(fd,writefds_io);
- if (pollfds[i].events & POLLPRI) FD_SET(fd,exceptfds_io);
- }
- *maxfd_io= maxfd;
-
-xit:
- adns__consistency(ads,0,cc_entex);
-}
-
-void adns_afterselect(adns_state ads, int maxfd, const fd_set *readfds,
- const fd_set *writefds, const fd_set *exceptfds,
- const struct timeval *now) {
- struct timeval tv_buf;
- struct pollfd pollfds[MAX_POLLFDS];
- int npollfds, i;
-
- adns__consistency(ads,0,cc_entex);
- adns__must_gettimeofday(ads,&now,&tv_buf);
- if (!now) goto xit;
- adns_processtimeouts(ads,now);
-
- npollfds= adns__pollfds(ads,pollfds);
- for (i=0; i<npollfds; i++) pollfds[i].revents= POLLIN|POLLOUT|POLLPRI;
- adns__fdevents(ads,
- pollfds,npollfds,
- maxfd,readfds,writefds,exceptfds,
- *now, 0);
-xit:
- adns__consistency(ads,0,cc_entex);
-}
-
-/* General helpful functions. */
-
-void adns_globalsystemfailure(adns_state ads) {
- adns__consistency(ads,0,cc_entex);
-
- while (ads->udpw.head) adns__query_fail(ads->udpw.head, adns_s_systemfail);
- while (ads->tcpw.head) adns__query_fail(ads->tcpw.head, adns_s_systemfail);
-
- switch (ads->tcpstate) {
- case server_connecting:
- case server_ok:
- adns__tcp_broken(ads,0,0);
- break;
- case server_disconnected:
- break;
- default:
- abort();
- }
- adns__consistency(ads,0,cc_entex);
-}
-
-int adns_processany(adns_state ads) {
- int r, i;
- struct timeval now;
- struct pollfd pollfds[MAX_POLLFDS];
- int npollfds;
-
- adns__consistency(ads,0,cc_entex);
-
- r= gettimeofday(&now,0);
- if (!r) adns_processtimeouts(ads,&now);
-
- /* We just use adns__fdevents to loop over the fd's trying them.
- * This seems more sensible than calling select, since we're most
- * likely just to want to do a read on one or two fds anyway.
- */
- npollfds= adns__pollfds(ads,pollfds);
- for (i=0; i<npollfds; i++) pollfds[i].revents= pollfds[i].events;
- adns__fdevents(ads,
- pollfds,npollfds,
- 0,0,0,0,
- now,&r);
-
- adns__consistency(ads,0,cc_entex);
- return 0;
-}
-
-void adns__autosys(adns_state ads, struct timeval now) {
- if (ads->iflags & adns_if_noautosys) return;
- adns_processany(ads);
-}
-
-int adns__internal_check(adns_state ads,
- adns_query *query_io,
- adns_answer **answer,
- void **context_r) {
- adns_query qu;
-
- qu= *query_io;
- if (!qu) {
- if (ads->output.head) {
- qu= ads->output.head;
- } else if (ads->udpw.head || ads->tcpw.head) {
- return EAGAIN;
- } else {
- return ESRCH;
- }
- } else {
- if (qu->id>=0) return EAGAIN;
- }
- LIST_UNLINK(ads->output,qu);
- *answer= qu->answer;
- if (context_r) *context_r= qu->ctx.ext;
- *query_io= qu;
- free(qu);
- return 0;
-}
-
-int adns_wait(adns_state ads,
- adns_query *query_io,
- adns_answer **answer_r,
- void **context_r) {
- int r, maxfd, rsel;
- fd_set readfds, writefds, exceptfds;
- struct timeval tvbuf, *tvp;
-
- adns__consistency(ads,*query_io,cc_entex);
- for (;;) {
- r= adns__internal_check(ads,query_io,answer_r,context_r);
- if (r != EAGAIN) break;
- maxfd= 0; tvp= 0;
- FD_ZERO(&readfds); FD_ZERO(&writefds); FD_ZERO(&exceptfds);
- adns_beforeselect(ads,&maxfd,&readfds,&writefds,&exceptfds,&tvp,&tvbuf,0);
- rsel= select(maxfd,&readfds,&writefds,&exceptfds,tvp);
- if (rsel==-1) {
- if (errno == EINTR) {
- if (ads->iflags & adns_if_eintr) { r= EINTR; break; }
- } else {
- adns__diag(ads,-1,0,"select failed in wait: %s",strerror(errno));
- adns_globalsystemfailure(ads);
- }
- } else {
- assert(rsel >= 0);
- adns_afterselect(ads,maxfd,&readfds,&writefds,&exceptfds,0);
- }
- }
- adns__consistency(ads,0,cc_entex);
- return r;
-}
-
-int adns_check(adns_state ads,
- adns_query *query_io,
- adns_answer **answer_r,
- void **context_r) {
- struct timeval now;
- int r;
-
- adns__consistency(ads,*query_io,cc_entex);
- r= gettimeofday(&now,0);
- if (!r) adns__autosys(ads,now);
-
- r= adns__internal_check(ads,query_io,answer_r,context_r);
- adns__consistency(ads,0,cc_entex);
- return r;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 03:54:14 +0000