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b/src/netcon.cpp |
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/* Copyright (C) 2002 J.F.Dockes
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// Wrapper classes for the socket interface
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#ifndef TEST_NETCON
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#ifdef _AIX
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#include <strings.h>
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#endif // _AIX
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/time.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <map>
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using namespace std;
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#ifdef HAVE_DEBUGLOG
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#include "debuglog.h"
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#else
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#define LOGFATAL(X)
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#define LOGERR(X)
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#define LOGINFO(X)
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#define LOGDEB(X)
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#define LOGDEB0(X)
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#define LOGDEB1(X)
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#define LOGDEB2(X)
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#define LOGDEB3(X)
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#define LOGDEB4(X)
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#endif
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#include "netcon.h"
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#ifndef SOCKLEN_T
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#define SOCKLEN_T socklen_t
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#endif
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// Need &one, &zero for setsockopt...
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static const int one = 1;
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static const int zero = 0;
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#define LOGSYSERR(who, call, spar) \
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LOGERR(("%s: %s(%s) errno %d (%s)\n", who, call, \
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spar, errno, strerror(errno)))
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#ifndef MIN
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#define MIN(a,b) (a<b?a:b)
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#endif
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#ifndef MAX
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#define MAX(a,b) (a>b?a:b)
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#endif
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#ifndef freeZ
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#define freeZ(X) if (X) {free(X);X=0;}
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#endif
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#define MILLIS(OLD, NEW) ( (long)(((NEW).tv_sec - (OLD).tv_sec) * 1000 + \
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((NEW).tv_usec - (OLD).tv_usec) / 1000))
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// Static method
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// Simplified interface to 'select()'. Only use one fd, for either
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// reading or writing. This is only used when not using the
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// selectloop() style of network i/o.
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// Note that timeo == 0 does NOT mean wait forever but no wait at all.
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int Netcon::select1(int fd, int timeo, int write)
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{
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int ret;
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struct timeval tv;
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fd_set rd;
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tv.tv_sec = timeo;
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tv.tv_usec = 0;
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FD_ZERO(&rd);
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FD_SET(fd, &rd);
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if (write) {
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ret = select(fd + 1, 0, &rd, 0, &tv);
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} else {
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ret = select(fd + 1, &rd, 0, 0, &tv);
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}
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if (!FD_ISSET(fd, &rd)) {
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LOGERR(("Netcon::select1: fd not ready after select ??\n"));
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return -1;
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}
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return ret;
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}
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void SelectLoop::setperiodichandler(int (*handler)(void *), void *p, int ms)
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{
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m_periodichandler = handler;
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m_periodicparam = p;
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m_periodicmillis = ms;
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if (m_periodicmillis > 0) {
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gettimeofday(&m_lasthdlcall, 0);
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}
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}
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// Compute the appropriate timeout so that the select call returns in
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// time to call the periodic routine.
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void SelectLoop::periodictimeout(struct timeval *tv)
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{
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// If periodic not set, the select call times out and we loop
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// after a very long time (we'd need to pass NULL to select for an
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// infinite wait, and I'm too lazy to handle it)
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if (m_periodicmillis <= 0) {
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tv->tv_sec = 10000;
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tv->tv_usec = 0;
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return;
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}
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struct timeval mtv;
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gettimeofday(&mtv, 0);
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int millis = m_periodicmillis - MILLIS(m_lasthdlcall, mtv);
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// millis <= 0 means we should have already done the thing. *dont* set the
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// tv to 0, which means no timeout at all !
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if (millis <= 0) {
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millis = 1;
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}
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tv->tv_sec = millis / 1000;
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tv->tv_usec = (millis % 1000) * 1000;
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}
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// Check if it's time to call the handler. selectloop will return to
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// caller if it or we return 0
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int SelectLoop::maybecallperiodic()
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{
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if (m_periodicmillis <= 0) {
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return 1;
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}
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struct timeval mtv;
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gettimeofday(&mtv, 0);
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int millis = m_periodicmillis - MILLIS(m_lasthdlcall, mtv);
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if (millis <= 0) {
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gettimeofday(&m_lasthdlcall, 0);
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if (m_periodichandler) {
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return m_periodichandler(m_periodicparam);
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} else {
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return 0;
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}
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}
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return 1;
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}
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int SelectLoop::doLoop()
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{
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for (;;) {
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if (m_selectloopDoReturn) {
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m_selectloopDoReturn = false;
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LOGDEB(("Netcon::selectloop: returning on request\n"));
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return m_selectloopReturnValue;
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}
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int nfds;
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fd_set rd, wd;
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FD_ZERO(&rd);
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FD_ZERO(&wd);
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// Walk the netcon map and set up the read and write fd_sets
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// for select()
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nfds = 0;
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for (map<int, NetconP>::iterator it = m_polldata.begin();
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it != m_polldata.end(); it++) {
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NetconP& pll = it->second;
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int fd = it->first;
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LOGDEB2(("Selectloop: fd %d flags 0x%x\n", fd, pll->m_wantedEvents));
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if (pll->m_wantedEvents & Netcon::NETCONPOLL_READ) {
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FD_SET(fd, &rd);
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nfds = MAX(nfds, fd + 1);
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}
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if (pll->m_wantedEvents & Netcon::NETCONPOLL_WRITE) {
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FD_SET(fd, &wd);
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nfds = MAX(nfds, fd + 1);
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}
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}
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if (nfds == 0) {
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// This should never happen in a server as we should at least
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// always monitor the main listening server socket. For a
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// client, it's up to client code to avoid or process this
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// condition.
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// Just in case there would still be open fds in there
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// (with no r/w flags set). Should not be needed, but safer
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m_polldata.clear();
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LOGDEB1(("Netcon::selectloop: no fds\n"));
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return 0;
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}
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LOGDEB2(("Netcon::selectloop: selecting, nfds = %d\n", nfds));
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// Compute the next timeout according to what might need to be
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// done apart from waiting for data
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struct timeval tv;
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periodictimeout(&tv);
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// Wait for something to happen
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int ret = select(nfds, &rd, &wd, 0, &tv);
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LOGDEB2(("Netcon::selectloop: select returns %d\n", ret));
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if (ret < 0) {
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LOGSYSERR("Netcon::selectloop", "select", "");
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return -1;
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}
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if (m_periodicmillis > 0)
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if (maybecallperiodic() <= 0) {
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return 1;
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}
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// Timeout, do it again.
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if (ret == 0) {
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continue;
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}
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// We don't start the fd sweep at 0, else some fds would be advantaged.
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// Note that we do an fd sweep, not a map sweep. This is
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// inefficient because the fd array may be very sparse. Otoh, the
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// map may change between 2 sweeps, so that we'd have to be smart
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// with the iterator. As the cost per unused fd is low (just 2 bit
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// flag tests), we keep it like this for now
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if (m_placetostart >= nfds) {
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m_placetostart = 0;
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}
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int i, fd;
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for (i = 0, fd = m_placetostart; i < nfds; i++, fd++) {
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if (fd >= nfds) {
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fd = 0;
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}
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int canread = FD_ISSET(fd, &rd);
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int canwrite = FD_ISSET(fd, &wd);
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bool none = !canread && !canwrite;
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LOGDEB2(("Netcon::selectloop: fd %d %s %s %s\n", fd,
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none ? "blocked" : "can" , canread ? "read" : "",
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canwrite ? "write" : ""));
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if (none) {
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continue;
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}
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map<int, NetconP>::iterator it = m_polldata.find(fd);
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if (it == m_polldata.end()) {
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/// This should not happen actually
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LOGDEB2(("Netcon::selectloop: fd %d not found\n", fd));
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continue;
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}
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// Next start will be one beyond last serviced (modulo nfds)
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m_placetostart = fd + 1;
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NetconP& pll = it->second;
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if (canread && pll->cando(Netcon::NETCONPOLL_READ) <= 0) {
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pll->m_wantedEvents &= ~Netcon::NETCONPOLL_READ;
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}
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if (canwrite && pll->cando(Netcon::NETCONPOLL_WRITE) <= 0) {
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pll->m_wantedEvents &= ~Netcon::NETCONPOLL_WRITE;
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}
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if (!(pll->m_wantedEvents & (Netcon::NETCONPOLL_WRITE | Netcon::NETCONPOLL_READ))) {
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LOGDEB0(("Netcon::selectloop: fd %d has 0x%x mask, erasing\n",
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it->first, it->second->m_wantedEvents));
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m_polldata.erase(it);
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}
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} // fd sweep
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} // forever loop
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LOGERR(("SelectLoop::doLoop: got out of loop !\n"));
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return -1;
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}
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// Add a connection to the monitored set.
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int SelectLoop::addselcon(NetconP con, int events)
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{
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if (!con) {
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return -1;
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}
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LOGDEB1(("Netcon::addselcon: fd %d\n", con->m_fd));
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con->set_nonblock(1);
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con->setselevents(events);
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m_polldata[con->m_fd] = con;
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con->setloop(this);
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return 0;
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}
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// Remove a connection from the monitored set.
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int SelectLoop::remselcon(NetconP con)
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{
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if (!con) {
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return -1;
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}
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LOGDEB1(("Netcon::remselcon: fd %d\n", con->m_fd));
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map<int, NetconP>::iterator it = m_polldata.find(con->m_fd);
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if (it == m_polldata.end()) {
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LOGDEB1(("Netcon::remselcon: con not found for fd %d\n", con->m_fd));
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return -1;
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}
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con->setloop(0);
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m_polldata.erase(it);
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return 0;
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}
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//////////////////////////////////////////////////////////
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// Base class (Netcon) methods
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Netcon::~Netcon()
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{
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closeconn();
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if (m_peer) {
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free(m_peer);
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m_peer = 0;
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}
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}
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void Netcon::closeconn()
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{
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if (m_ownfd && m_fd >= 0) {
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close(m_fd);
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}
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m_fd = -1;
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m_ownfd = true;
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}
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char *Netcon::sterror()
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{
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return strerror(errno);
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}
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346 |
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347 |
void Netcon::setpeer(const char *hostname)
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348 |
{
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349 |
if (m_peer) {
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free(m_peer);
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}
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m_peer = strdup(hostname);
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}
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354 |
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int Netcon::settcpnodelay(int on)
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356 |
{
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357 |
LOGDEB2(("Netcon::settcpnodelay\n"));
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358 |
if (m_fd < 0) {
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|
359 |
LOGERR(("Netcon::settcpnodelay: connection not opened\n"));
|
|
|
360 |
return -1;
|
|
|
361 |
}
|
|
|
362 |
char *cp = on ? (char *)&one : (char *)&zero;
|
|
|
363 |
if (setsockopt(m_fd, IPPROTO_TCP, TCP_NODELAY, cp, sizeof(one)) < 0) {
|
|
|
364 |
LOGSYSERR("NetconCli::settcpnodelay", "setsockopt", "TCP_NODELAY");
|
|
|
365 |
return -1;
|
|
|
366 |
}
|
|
|
367 |
return 0;
|
|
|
368 |
}
|
|
|
369 |
|
|
|
370 |
// Set/reset non-blocking flag on fd
|
|
|
371 |
int Netcon::set_nonblock(int onoff)
|
|
|
372 |
{
|
|
|
373 |
int flags = fcntl(m_fd, F_GETFL, 0);
|
|
|
374 |
if (flags != -1) {
|
|
|
375 |
int newflags = onoff ? flags | O_NONBLOCK : flags & ~O_NONBLOCK;
|
|
|
376 |
if (newflags != flags)
|
|
|
377 |
if (fcntl(m_fd, F_SETFL, newflags) < 0) {
|
|
|
378 |
return -1;
|
|
|
379 |
}
|
|
|
380 |
}
|
|
|
381 |
return flags;
|
|
|
382 |
}
|
|
|
383 |
|
|
|
384 |
/////////////////////////////////////////////////////////////////////
|
|
|
385 |
// Data socket (NetconData) methods
|
|
|
386 |
|
|
|
387 |
NetconData::~NetconData()
|
|
|
388 |
{
|
|
|
389 |
freeZ(m_buf);
|
|
|
390 |
m_bufbase = 0;
|
|
|
391 |
m_bufbytes = m_bufsize = 0;
|
|
|
392 |
}
|
|
|
393 |
|
|
|
394 |
int NetconData::send(const char *buf, int cnt, int expedited)
|
|
|
395 |
{
|
|
|
396 |
LOGDEB2(("NetconData::send: fd %d cnt %d expe %d\n", m_fd, cnt, expedited));
|
|
|
397 |
int flag = 0;
|
|
|
398 |
if (m_fd < 0) {
|
|
|
399 |
LOGERR(("NetconData::send: connection not opened\n"));
|
|
|
400 |
return -1;
|
|
|
401 |
}
|
|
|
402 |
if (expedited) {
|
|
|
403 |
LOGDEB2(("NetconData::send: expedited data, count %d bytes\n", cnt));
|
|
|
404 |
flag = MSG_OOB;
|
|
|
405 |
}
|
|
|
406 |
int ret;
|
|
|
407 |
// There is a bug in the uthread version of sendto() in FreeBSD at
|
|
|
408 |
// least up to 2.2.7, so avoid using it when possible
|
|
|
409 |
if (flag) {
|
|
|
410 |
ret = ::send(m_fd, buf, cnt, flag);
|
|
|
411 |
} else {
|
|
|
412 |
ret = ::write(m_fd, buf, cnt);
|
|
|
413 |
}
|
|
|
414 |
|
|
|
415 |
// Note: byte count may be different from cnt if fd is non-blocking
|
|
|
416 |
if (ret < 0) {
|
|
|
417 |
char fdcbuf[20];
|
|
|
418 |
sprintf(fdcbuf, "%d", m_fd);
|
|
|
419 |
LOGSYSERR("NetconData::send", "send", fdcbuf);
|
|
|
420 |
}
|
|
|
421 |
return ret;
|
|
|
422 |
}
|
|
|
423 |
|
|
|
424 |
// Test for data available
|
|
|
425 |
int NetconData::readready()
|
|
|
426 |
{
|
|
|
427 |
LOGDEB2(("NetconData::readready\n"));
|
|
|
428 |
if (m_fd < 0) {
|
|
|
429 |
LOGERR(("NetconData::readready: connection not opened\n"));
|
|
|
430 |
return -1;
|
|
|
431 |
}
|
|
|
432 |
return select1(m_fd, 0);
|
|
|
433 |
}
|
|
|
434 |
|
|
|
435 |
// Test for writable
|
|
|
436 |
int NetconData::writeready()
|
|
|
437 |
{
|
|
|
438 |
LOGDEB2(("NetconData::writeready\n"));
|
|
|
439 |
if (m_fd < 0) {
|
|
|
440 |
LOGERR(("NetconData::writeready: connection not opened\n"));
|
|
|
441 |
return -1;
|
|
|
442 |
}
|
|
|
443 |
return select1(m_fd, 0, 1);
|
|
|
444 |
}
|
|
|
445 |
|
|
|
446 |
// Receive at most cnt bytes (maybe less)
|
|
|
447 |
int NetconData::receive(char *buf, int cnt, int timeo)
|
|
|
448 |
{
|
|
|
449 |
LOGDEB2(("NetconData::receive: cnt %d timeo %d m_buf 0x%x m_bufbytes %d\n",
|
|
|
450 |
cnt, timeo, m_buf, m_bufbytes));
|
|
|
451 |
if (m_fd < 0) {
|
|
|
452 |
LOGERR(("NetconData::receive: connection not opened\n"));
|
|
|
453 |
return -1;
|
|
|
454 |
}
|
|
|
455 |
int fromibuf = 0;
|
|
|
456 |
// Get whatever might have been left in the buffer by a previous
|
|
|
457 |
// getline, except if we're called to fill the buffer of course
|
|
|
458 |
if (m_buf && m_bufbytes > 0 && (buf < m_buf || buf > m_buf + m_bufsize)) {
|
|
|
459 |
fromibuf = MIN(m_bufbytes, cnt);
|
|
|
460 |
memcpy(buf, m_bufbase, fromibuf);
|
|
|
461 |
m_bufbytes -= fromibuf;
|
|
|
462 |
m_bufbase += fromibuf;
|
|
|
463 |
cnt -= fromibuf;
|
|
|
464 |
LOGDEB2(("NetconData::receive: transferred %d from mbuf\n", fromibuf));
|
|
|
465 |
if (cnt <= 0) {
|
|
|
466 |
return fromibuf;
|
|
|
467 |
}
|
|
|
468 |
}
|
|
|
469 |
if (timeo > 0) {
|
|
|
470 |
int ret = select1(m_fd, timeo);
|
|
|
471 |
if (ret == 0) {
|
|
|
472 |
LOGDEB2(("NetconData::receive timed out\n"));
|
|
|
473 |
m_didtimo = 1;
|
|
|
474 |
return -1;
|
|
|
475 |
}
|
|
|
476 |
if (ret < 0) {
|
|
|
477 |
LOGSYSERR("NetconData::receive", "select", "");
|
|
|
478 |
return -1;
|
|
|
479 |
}
|
|
|
480 |
}
|
|
|
481 |
m_didtimo = 0;
|
|
|
482 |
if ((cnt = read(m_fd, buf + fromibuf, cnt)) < 0) {
|
|
|
483 |
char fdcbuf[20];
|
|
|
484 |
sprintf(fdcbuf, "%d", m_fd);
|
|
|
485 |
LOGSYSERR("NetconData::receive", "read", fdcbuf);
|
|
|
486 |
return -1;
|
|
|
487 |
}
|
|
|
488 |
LOGDEB2(("NetconData::receive: normal return, cnt %d\n", cnt));
|
|
|
489 |
return fromibuf + cnt;
|
|
|
490 |
}
|
|
|
491 |
|
|
|
492 |
// Receive exactly cnt bytes (except for timeout)
|
|
|
493 |
int NetconData::doreceive(char *buf, int cnt, int timeo)
|
|
|
494 |
{
|
|
|
495 |
int got, cur;
|
|
|
496 |
LOGDEB2(("Netcon::doreceive: cnt %d, timeo %d\n", cnt, timeo));
|
|
|
497 |
cur = 0;
|
|
|
498 |
while (cnt > cur) {
|
|
|
499 |
got = receive(buf, cnt - cur, timeo);
|
|
|
500 |
LOGDEB2(("Netcon::doreceive: got %d\n", got));
|
|
|
501 |
if (got < 0) {
|
|
|
502 |
return -1;
|
|
|
503 |
}
|
|
|
504 |
if (got == 0) {
|
|
|
505 |
return cur;
|
|
|
506 |
}
|
|
|
507 |
cur += got;
|
|
|
508 |
buf += got;
|
|
|
509 |
}
|
|
|
510 |
return cur;
|
|
|
511 |
}
|
|
|
512 |
|
|
|
513 |
// Read data until cnt-1 characters are read or a newline is found. Add
|
|
|
514 |
// null char at end of buffer and return.
|
|
|
515 |
// As we don't know where the newline will be and it would be inefficient to
|
|
|
516 |
// read a character at a time, we use a buffer
|
|
|
517 |
// Unlike fgets, we return an integer status:
|
|
|
518 |
// >0: number of characters returned, not including the final 0
|
|
|
519 |
// 0: EOF reached, no chars transferred
|
|
|
520 |
// -1: error
|
|
|
521 |
static const int defbufsize = 200;
|
|
|
522 |
int NetconData::getline(char *buf, int cnt, int timeo)
|
|
|
523 |
{
|
|
|
524 |
LOGDEB2(("NetconData::getline: cnt %d, timeo %d\n", cnt, timeo));
|
|
|
525 |
if (m_buf == 0) {
|
|
|
526 |
if ((m_buf = (char *)malloc(defbufsize)) == 0) {
|
|
|
527 |
LOGSYSERR("NetconData::getline: Out of mem", "malloc", "");
|
|
|
528 |
return -1;
|
|
|
529 |
}
|
|
|
530 |
m_bufsize = defbufsize;
|
|
|
531 |
m_bufbase = m_buf;
|
|
|
532 |
m_bufbytes = 0;
|
|
|
533 |
}
|
|
|
534 |
|
|
|
535 |
char *cp = buf;
|
|
|
536 |
for (;;) {
|
|
|
537 |
// Transfer from buffer. Have to take a lot of care to keep counts and
|
|
|
538 |
// pointers consistant in all end cases
|
|
|
539 |
int maxtransf = MIN(m_bufbytes, cnt - 1);
|
|
|
540 |
int nn = maxtransf;
|
|
|
541 |
LOGDEB2(("Before loop, bufbytes %d, maxtransf %d, nn: %d\n",
|
|
|
542 |
m_bufbytes, maxtransf, nn));
|
|
|
543 |
for (nn = maxtransf; nn > 0;) {
|
|
|
544 |
// This is not pretty but we want nn to be decremented for
|
|
|
545 |
// each byte copied (even newline), and not become -1 if
|
|
|
546 |
// we go to the end. Better ways welcome!
|
|
|
547 |
nn--;
|
|
|
548 |
if ((*cp++ = *m_bufbase++) == '\n') {
|
|
|
549 |
break;
|
|
|
550 |
}
|
|
|
551 |
}
|
|
|
552 |
// Update counts
|
|
|
553 |
maxtransf -= nn; // Actual count transferred
|
|
|
554 |
m_bufbytes -= maxtransf;
|
|
|
555 |
cnt -= maxtransf;
|
|
|
556 |
LOGDEB2(("After transfer: actual transf %d cnt %d, m_bufbytes %d\n",
|
|
|
557 |
maxtransf, cnt, m_bufbytes));
|
|
|
558 |
|
|
|
559 |
// Finished ?
|
|
|
560 |
if (cnt <= 1 || (cp > buf && cp[-1] == '\n')) {
|
|
|
561 |
*cp = 0;
|
|
|
562 |
return cp - buf;
|
|
|
563 |
}
|
|
|
564 |
|
|
|
565 |
// Transfer from net
|
|
|
566 |
m_bufbase = m_buf;
|
|
|
567 |
m_bufbytes = receive(m_buf, m_bufsize, timeo);
|
|
|
568 |
if (m_bufbytes == 0) {
|
|
|
569 |
// EOF
|
|
|
570 |
*cp = 0;
|
|
|
571 |
return cp - buf;
|
|
|
572 |
}
|
|
|
573 |
if (m_bufbytes < 0) {
|
|
|
574 |
m_bufbytes = 0;
|
|
|
575 |
*cp = 0;
|
|
|
576 |
return -1;
|
|
|
577 |
}
|
|
|
578 |
}
|
|
|
579 |
}
|
|
|
580 |
|
|
|
581 |
// Called when selectloop detects that data can be read or written on
|
|
|
582 |
// the connection. The user callback would normally have been set
|
|
|
583 |
// up. If it is, call it and return. Else, perform housecleaning: read
|
|
|
584 |
// and discard.
|
|
|
585 |
int NetconData::cando(Netcon::Event reason)
|
|
|
586 |
{
|
|
|
587 |
LOGDEB2(("NetconData::cando\n"));
|
|
|
588 |
if (m_user) {
|
|
|
589 |
return m_user->data(this, reason);
|
|
|
590 |
}
|
|
|
591 |
|
|
|
592 |
// No user callback. Clean up by ourselves
|
|
|
593 |
if (reason & NETCONPOLL_READ) {
|
|
|
594 |
#define BS 200
|
|
|
595 |
char buf[BS];
|
|
|
596 |
int n;
|
|
|
597 |
if ((n = receive(buf, BS)) < 0) {
|
|
|
598 |
LOGSYSERR("NetconData::cando", "receive", "");
|
|
|
599 |
return -1;
|
|
|
600 |
}
|
|
|
601 |
if (n == 0) {
|
|
|
602 |
// EOF
|
|
|
603 |
return 0;
|
|
|
604 |
}
|
|
|
605 |
}
|
|
|
606 |
clearselevents(NETCONPOLL_WRITE);
|
|
|
607 |
return 1;
|
|
|
608 |
}
|
|
|
609 |
|
|
|
610 |
///////////////////////////////////////////////////////////////////////
|
|
|
611 |
// Methods for a client connection (NetconCli)
|
|
|
612 |
int NetconCli::openconn(const char *host, unsigned int port, int timeo)
|
|
|
613 |
{
|
|
|
614 |
int ret = -1;
|
|
|
615 |
LOGDEB2(("Netconcli::openconn: host %s, port %d\n", host, port));
|
|
|
616 |
|
|
|
617 |
closeconn();
|
|
|
618 |
|
|
|
619 |
struct sockaddr_in saddr;
|
|
|
620 |
memset(&saddr, 0, sizeof(saddr));
|
|
|
621 |
saddr.sin_family = AF_INET;
|
|
|
622 |
saddr.sin_port = htons(port);
|
|
|
623 |
|
|
|
624 |
// Server name may be host name or IP address
|
|
|
625 |
int addr;
|
|
|
626 |
if ((addr = inet_addr(host)) != -1) {
|
|
|
627 |
memcpy(&saddr.sin_addr, &addr, sizeof(addr));
|
|
|
628 |
} else {
|
|
|
629 |
struct hostent *hp;
|
|
|
630 |
if ((hp = gethostbyname(host)) == 0) {
|
|
|
631 |
LOGERR(("NetconCli::openconn: gethostbyname(%s) failed\n", host));
|
|
|
632 |
return -1;
|
|
|
633 |
}
|
|
|
634 |
memcpy(&saddr.sin_addr, hp->h_addr, hp->h_length);
|
|
|
635 |
}
|
|
|
636 |
|
|
|
637 |
if ((m_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
|
|
|
638 |
LOGSYSERR("NetconCli::openconn", "socket", "");
|
|
|
639 |
return -1;
|
|
|
640 |
}
|
|
|
641 |
if (timeo > 0) {
|
|
|
642 |
set_nonblock(1);
|
|
|
643 |
}
|
|
|
644 |
|
|
|
645 |
if (connect(m_fd, (struct sockaddr *) &saddr, sizeof(saddr)) < 0) {
|
|
|
646 |
if (timeo > 0) {
|
|
|
647 |
if (errno != EINPROGRESS) {
|
|
|
648 |
goto out;
|
|
|
649 |
}
|
|
|
650 |
if (select1(m_fd, timeo, 1) == 1) {
|
|
|
651 |
goto connectok;
|
|
|
652 |
}
|
|
|
653 |
}
|
|
|
654 |
if (m_silentconnectfailure == 0) {
|
|
|
655 |
LOGSYSERR("NetconCli", "connect", "");
|
|
|
656 |
}
|
|
|
657 |
goto out;
|
|
|
658 |
}
|
|
|
659 |
connectok:
|
|
|
660 |
if (timeo > 0) {
|
|
|
661 |
set_nonblock(0);
|
|
|
662 |
}
|
|
|
663 |
|
|
|
664 |
LOGDEB2(("NetconCli::connect: setting keepalive\n"));
|
|
|
665 |
if (setsockopt(m_fd, SOL_SOCKET, SO_KEEPALIVE,
|
|
|
666 |
(char *)&one, sizeof(one)) < 0) {
|
|
|
667 |
LOGSYSERR("NetconCli::connect", "setsockopt", "KEEPALIVE");
|
|
|
668 |
}
|
|
|
669 |
setpeer(host);
|
|
|
670 |
LOGDEB2(("NetconCli::openconn: connection opened ok\n"));
|
|
|
671 |
ret = 0;
|
|
|
672 |
out:
|
|
|
673 |
if (ret < 0) {
|
|
|
674 |
closeconn();
|
|
|
675 |
}
|
|
|
676 |
return ret;
|
|
|
677 |
}
|
|
|
678 |
|
|
|
679 |
// Same as previous, but get the port number from services
|
|
|
680 |
int NetconCli::openconn(const char *host, char *serv, int timeo)
|
|
|
681 |
{
|
|
|
682 |
LOGDEB2(("Netconcli::openconn: host %s, serv %s\n", host, serv));
|
|
|
683 |
|
|
|
684 |
struct servent *sp;
|
|
|
685 |
if ((sp = getservbyname(serv, "tcp")) == 0) {
|
|
|
686 |
LOGERR(("NetconCli::openconn: getservbyname failed for %s\n", serv));
|
|
|
687 |
return -1;
|
|
|
688 |
}
|
|
|
689 |
// Callee expects the port number in host byte order
|
|
|
690 |
return openconn(host, ntohs(sp->s_port), timeo);
|
|
|
691 |
}
|
|
|
692 |
|
|
|
693 |
|
|
|
694 |
int NetconCli::setconn(int fd)
|
|
|
695 |
{
|
|
|
696 |
LOGDEB2(("Netconcli::setconn: fd %d\n", fd));
|
|
|
697 |
closeconn();
|
|
|
698 |
|
|
|
699 |
m_fd = fd;
|
|
|
700 |
m_ownfd = false;
|
|
|
701 |
setpeer("");
|
|
|
702 |
|
|
|
703 |
return 0;
|
|
|
704 |
}
|
|
|
705 |
|
|
|
706 |
///////////////////////////////////////////////////////////////////////
|
|
|
707 |
// Methods for the main (listening) server connection
|
|
|
708 |
|
|
|
709 |
NetconServLis::~NetconServLis()
|
|
|
710 |
{
|
|
|
711 |
#ifdef NETCON_ACCESSCONTROL
|
|
|
712 |
freeZ(okaddrs.intarray);
|
|
|
713 |
freeZ(okmasks.intarray);
|
|
|
714 |
#endif
|
|
|
715 |
}
|
|
|
716 |
|
|
|
717 |
#if 0
|
|
|
718 |
// code for dumping a struct servent
|
|
|
719 |
static void dump_servent(struct servent *servp)
|
|
|
720 |
{
|
|
|
721 |
fprintf(stderr, "Official name %s\n", servp->s_name);
|
|
|
722 |
for (char **cpp = servp->s_aliases; *cpp; cpp++) {
|
|
|
723 |
fprintf(stderr, "Nickname %s\n", *cpp);
|
|
|
724 |
}
|
|
|
725 |
fprintf(stderr, "Port %d\n", (int)ntohs((short)servp->s_port));
|
|
|
726 |
fprintf(stderr, "Proto %s\n", servp->s_proto);
|
|
|
727 |
}
|
|
|
728 |
#endif
|
|
|
729 |
|
|
|
730 |
// Set up service.
|
|
|
731 |
int NetconServLis::openservice(char *serv, int backlog)
|
|
|
732 |
{
|
|
|
733 |
int port;
|
|
|
734 |
struct servent *servp;
|
|
|
735 |
LOGDEB1(("NetconServLis::openservice: serv %s\n", serv));
|
|
|
736 |
#ifdef NETCON_ACCESSCONTROL
|
|
|
737 |
if (initperms(serv) < 0) {
|
|
|
738 |
return -1;
|
|
|
739 |
}
|
|
|
740 |
#endif
|
|
|
741 |
if ((servp = getservbyname(serv, "tcp")) == 0) {
|
|
|
742 |
LOGERR(("NetconServLis::openservice: getservbyname failed for %s\n", serv));
|
|
|
743 |
return -1;
|
|
|
744 |
}
|
|
|
745 |
port = (int)ntohs((short)servp->s_port);
|
|
|
746 |
return openservice(port, backlog);
|
|
|
747 |
}
|
|
|
748 |
|
|
|
749 |
// Port is a natural host integer value
|
|
|
750 |
int NetconServLis::openservice(int port, int backlog)
|
|
|
751 |
{
|
|
|
752 |
LOGDEB1(("NetconServLis::openservice: port %d\n", port));
|
|
|
753 |
#ifdef NETCON_ACCESSCONTROL
|
|
|
754 |
if (initperms(port) < 0) {
|
|
|
755 |
return -1;
|
|
|
756 |
}
|
|
|
757 |
#endif
|
|
|
758 |
int ret = -1;
|
|
|
759 |
struct sockaddr_in ipaddr;
|
|
|
760 |
if ((m_fd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
|
|
|
761 |
LOGSYSERR("NetconServLis", "socket", "");
|
|
|
762 |
return -1;
|
|
|
763 |
}
|
|
|
764 |
(void) setsockopt(m_fd, SOL_SOCKET, SO_REUSEADDR, (char *)&one, sizeof(one));
|
|
|
765 |
#ifdef SO_REUSEPORT
|
|
|
766 |
(void) setsockopt(m_fd, SOL_SOCKET, SO_REUSEPORT, (char *)&one, sizeof(one));
|
|
|
767 |
#endif /*SO_REUSEPORT*/
|
|
|
768 |
memset(&ipaddr, 0, sizeof(ipaddr));
|
|
|
769 |
ipaddr.sin_family = AF_INET;
|
|
|
770 |
ipaddr.sin_addr.s_addr = htonl(INADDR_ANY);
|
|
|
771 |
ipaddr.sin_port = htons((short)port);
|
|
|
772 |
if (bind(m_fd, (struct sockaddr *)&ipaddr, sizeof(ipaddr)) < 0) {
|
|
|
773 |
LOGSYSERR("NetconServLis", "bind", "");
|
|
|
774 |
goto out;
|
|
|
775 |
}
|
|
|
776 |
if (listen(m_fd, backlog) < 0) {
|
|
|
777 |
LOGSYSERR("NetconServLis", "listen", "");
|
|
|
778 |
goto out;
|
|
|
779 |
}
|
|
|
780 |
|
|
|
781 |
LOGDEB1(("NetconServLis::openservice: service opened ok\n"));
|
|
|
782 |
ret = 0;
|
|
|
783 |
out:
|
|
|
784 |
if (ret < 0 && m_fd >= 0) {
|
|
|
785 |
close(m_fd);
|
|
|
786 |
m_fd = -1;
|
|
|
787 |
}
|
|
|
788 |
return ret;
|
|
|
789 |
}
|
|
|
790 |
|
|
|
791 |
#ifdef NETCON_ACCESSCONTROL
|
|
|
792 |
int NetconServLis::initperms(int port)
|
|
|
793 |
{
|
|
|
794 |
if (permsinit) {
|
|
|
795 |
return 0;
|
|
|
796 |
}
|
|
|
797 |
|
|
|
798 |
char sport[30];
|
|
|
799 |
sprintf(sport, "%d", port);
|
|
|
800 |
return initperms(sport);
|
|
|
801 |
}
|
|
|
802 |
|
|
|
803 |
// Get authorized address lists from parameter file. This is disabled for now
|
|
|
804 |
int NetconServLis::initperms(char *serv)
|
|
|
805 |
{
|
|
|
806 |
if (permsinit) {
|
|
|
807 |
return 0;
|
|
|
808 |
}
|
|
|
809 |
|
|
|
810 |
if (serv == 0 || *serv == 0 || strlen(serv) > 80) {
|
|
|
811 |
LOGERR(("NetconServLis::initperms: bad service name %s\n", serv));
|
|
|
812 |
return -1;
|
|
|
813 |
}
|
|
|
814 |
|
|
|
815 |
char keyname[100];
|
|
|
816 |
sprintf(keyname, "%s_okaddrs", serv);
|
|
|
817 |
if (genparams->getparam(keyname, &okaddrs, 1) < 0) {
|
|
|
818 |
serv = "default";
|
|
|
819 |
sprintf(keyname, "%s_okaddrs", serv);
|
|
|
820 |
if (genparams->getparam(keyname, &okaddrs) < 0) {
|
|
|
821 |
LOGERR(("NetconServLis::initperms: no okaddrs found in config file\n"));
|
|
|
822 |
return -1;
|
|
|
823 |
}
|
|
|
824 |
}
|
|
|
825 |
sprintf(keyname, "%s_okmasks", serv);
|
|
|
826 |
if (genparams->getparam(keyname, &okmasks)) {
|
|
|
827 |
LOGERR(("NetconServLis::initperms: okmasks not found\n"));
|
|
|
828 |
return -1;
|
|
|
829 |
}
|
|
|
830 |
if (okaddrs.len == 0 || okmasks.len == 0) {
|
|
|
831 |
LOGERR(("NetconServLis::initperms: len 0 for okmasks or okaddrs\n"));
|
|
|
832 |
return -1;
|
|
|
833 |
}
|
|
|
834 |
|
|
|
835 |
permsinit = 1;
|
|
|
836 |
return 0;
|
|
|
837 |
}
|
|
|
838 |
#endif /* NETCON_ACCESSCONTROL */
|
|
|
839 |
|
|
|
840 |
// Sample cando routine for server master connection: delete newly
|
|
|
841 |
// accepted connection. What else ?
|
|
|
842 |
// This is to be overriden by a derived class method for an application
|
|
|
843 |
// using the selectloop thing
|
|
|
844 |
int NetconServLis::cando(Netcon::Event reason)
|
|
|
845 |
{
|
|
|
846 |
delete accept();
|
|
|
847 |
return 1;
|
|
|
848 |
}
|
|
|
849 |
|
|
|
850 |
NetconServCon *
|
|
|
851 |
NetconServLis::accept(int timeo)
|
|
|
852 |
{
|
|
|
853 |
LOGDEB(("NetconServLis::accept\n"));
|
|
|
854 |
|
|
|
855 |
if (timeo > 0) {
|
|
|
856 |
int ret = select1(m_fd, timeo);
|
|
|
857 |
if (ret == 0) {
|
|
|
858 |
LOGDEB2(("NetconServLis::accept timed out\n"));
|
|
|
859 |
m_didtimo = 1;
|
|
|
860 |
return 0;
|
|
|
861 |
}
|
|
|
862 |
if (ret < 0) {
|
|
|
863 |
LOGSYSERR("NetconServLis::accept", "select", "");
|
|
|
864 |
return 0;
|
|
|
865 |
}
|
|
|
866 |
}
|
|
|
867 |
m_didtimo = 0;
|
|
|
868 |
|
|
|
869 |
NetconServCon *con = 0;
|
|
|
870 |
int newfd = -1;
|
|
|
871 |
struct sockaddr_in who;
|
|
|
872 |
SOCKLEN_T clilen = (SOCKLEN_T)sizeof(who);
|
|
|
873 |
if ((newfd = ::accept(m_fd, (struct sockaddr *)&who, &clilen)) < 0) {
|
|
|
874 |
LOGSYSERR("NetconServCon::accept", "accept", "");
|
|
|
875 |
goto out;
|
|
|
876 |
}
|
|
|
877 |
#ifdef NETCON_ACCESSCONTROL
|
|
|
878 |
if (checkperms(&who, clilen) < 0) {
|
|
|
879 |
goto out;
|
|
|
880 |
}
|
|
|
881 |
#endif
|
|
|
882 |
con = new NetconServCon(newfd);
|
|
|
883 |
if (con == 0) {
|
|
|
884 |
LOGERR(("NetconServLis::accept: new NetconServCon failed\n"));
|
|
|
885 |
goto out;
|
|
|
886 |
}
|
|
|
887 |
// Retrieve peer's host name. Errors are non fatal
|
|
|
888 |
struct hostent *hp;
|
|
|
889 |
if ((hp = gethostbyaddr((char *) & (who.sin_addr), sizeof(struct in_addr),
|
|
|
890 |
AF_INET)) == 0) {
|
|
|
891 |
LOGERR(("NetconServLis::accept: gethostbyaddr failed for addr 0x%lx\n",
|
|
|
892 |
who.sin_addr.s_addr));
|
|
|
893 |
con->setpeer(inet_ntoa(who.sin_addr));
|
|
|
894 |
} else {
|
|
|
895 |
con->setpeer(hp->h_name);
|
|
|
896 |
}
|
|
|
897 |
LOGDEB2(("NetconServLis::accept: setting keepalive\n"));
|
|
|
898 |
if (setsockopt(newfd, SOL_SOCKET, SO_KEEPALIVE,
|
|
|
899 |
(char *)&one, sizeof(one)) < 0) {
|
|
|
900 |
LOGSYSERR("NetconServLis::accept", "setsockopt", "KEEPALIVE");
|
|
|
901 |
}
|
|
|
902 |
LOGDEB2(("NetconServLis::accept: got connect from %s\n", con->getpeer()));
|
|
|
903 |
|
|
|
904 |
out:
|
|
|
905 |
if (con == 0 && newfd >= 0) {
|
|
|
906 |
close(newfd);
|
|
|
907 |
}
|
|
|
908 |
return con;
|
|
|
909 |
}
|
|
|
910 |
|
|
|
911 |
#ifdef NETCON_ACCESSCONTROL
|
|
|
912 |
int
|
|
|
913 |
NetconServLis::checkperms(void *cl, int)
|
|
|
914 |
{
|
|
|
915 |
// If okmasks and addrs were not initialized, the default is allow to all
|
|
|
916 |
if (okmasks.len <= 0 || okaddrs.len <= 0) {
|
|
|
917 |
return 0;
|
|
|
918 |
}
|
|
|
919 |
|
|
|
920 |
struct sockaddr *addr = (struct sockaddr *)cl;
|
|
|
921 |
unsigned long ip_addr;
|
|
|
922 |
|
|
|
923 |
if (addr->sa_family != AF_INET) {
|
|
|
924 |
LOGERR(("NetconServLis::checkperms: connection from non-INET addr !\n"));
|
|
|
925 |
return -1;
|
|
|
926 |
}
|
|
|
927 |
|
|
|
928 |
ip_addr = ntohl(((struct sockaddr_in *)addr)->sin_addr.s_addr);
|
|
|
929 |
LOGDEB2(("checkperms: ip_addr: 0x%x\n", ip_addr));
|
|
|
930 |
for (int i = 0; i < okaddrs.len; i++) {
|
|
|
931 |
unsigned int mask;
|
|
|
932 |
if (i < okmasks.len) {
|
|
|
933 |
mask = okmasks.intarray[i];
|
|
|
934 |
} else {
|
|
|
935 |
mask = okmasks.intarray[okmasks.len - 1];
|
|
|
936 |
}
|
|
|
937 |
LOGDEB2(("checkperms: trying okaddr 0x%x, mask 0x%x\n",
|
|
|
938 |
okaddrs.intarray[i], mask));
|
|
|
939 |
if ((ip_addr & mask) == (okaddrs.intarray[i] & mask)) {
|
|
|
940 |
return (0);
|
|
|
941 |
}
|
|
|
942 |
}
|
|
|
943 |
LOGERR(("NetconServLis::checkperm: connection from bad address 0x%x\n",
|
|
|
944 |
ip_addr));
|
|
|
945 |
return -1;
|
|
|
946 |
}
|
|
|
947 |
#endif /* NETCON_ACCESSCONTROL */
|
|
|
948 |
|
|
|
949 |
|
|
|
950 |
#else /* !TEST_NETCON */
|
|
|
951 |
/////////////////////////////////////////////////////////////////////////
|
|
|
952 |
////////// TEST DRIVER
|
|
|
953 |
////////////////////////////////////////////////////////////////////////
|
|
|
954 |
|
|
|
955 |
#include <stdio.h>
|
|
|
956 |
#include <stdlib.h>
|
|
|
957 |
#include <unistd.h>
|
|
|
958 |
#include <signal.h>
|
|
|
959 |
#include <string.h>
|
|
|
960 |
|
|
|
961 |
#include "debuglog.h"
|
|
|
962 |
#include "netcon.h"
|
|
|
963 |
|
|
|
964 |
using namespace std;
|
|
|
965 |
|
|
|
966 |
static char *thisprog;
|
|
|
967 |
static char usage[] =
|
|
|
968 |
"-c <host> <service>: Connects to trnetcon server, exchange message, then\n"
|
|
|
969 |
" sleeps 10 S, except if option -n is given (sleep forever)\n"
|
|
|
970 |
"\n"
|
|
|
971 |
"-s <service>: open service <service>\n"
|
|
|
972 |
;
|
|
|
973 |
static void
|
|
|
974 |
Usage()
|
|
|
975 |
{
|
|
|
976 |
fprintf(stderr, "Usage : %s:\n %s", thisprog, usage);
|
|
|
977 |
exit(1);
|
|
|
978 |
}
|
|
|
979 |
|
|
|
980 |
static int op_flags;
|
|
|
981 |
#define OPT_MOINS 0x1
|
|
|
982 |
#define OPT_s 0x2 /* Server */
|
|
|
983 |
#define OPT_c 0x4 /* Client */
|
|
|
984 |
#define OPT_n 0x8 /* Client sleeps forever */
|
|
|
985 |
|
|
|
986 |
extern int trycli(char *host, char *serv);
|
|
|
987 |
extern int tryserv(char *serv);
|
|
|
988 |
|
|
|
989 |
int nloop = 10;
|
|
|
990 |
|
|
|
991 |
int main(int argc, char **argv)
|
|
|
992 |
{
|
|
|
993 |
char *host, *serv;
|
|
|
994 |
|
|
|
995 |
thisprog = argv[0];
|
|
|
996 |
argc--;
|
|
|
997 |
argv++;
|
|
|
998 |
|
|
|
999 |
while (argc > 0 && **argv == '-') {
|
|
|
1000 |
(*argv)++;
|
|
|
1001 |
if (!(**argv))
|
|
|
1002 |
/* Cas du "adb - core" */
|
|
|
1003 |
{
|
|
|
1004 |
Usage();
|
|
|
1005 |
}
|
|
|
1006 |
while (**argv)
|
|
|
1007 |
switch (*(*argv)++) {
|
|
|
1008 |
case 's':
|
|
|
1009 |
op_flags |= OPT_s;
|
|
|
1010 |
break;
|
|
|
1011 |
case 'c':
|
|
|
1012 |
op_flags |= OPT_c;
|
|
|
1013 |
break;
|
|
|
1014 |
case 'n':
|
|
|
1015 |
op_flags |= OPT_n;
|
|
|
1016 |
break;
|
|
|
1017 |
default:
|
|
|
1018 |
Usage();
|
|
|
1019 |
break;
|
|
|
1020 |
}
|
|
|
1021 |
argc--;
|
|
|
1022 |
argv++;
|
|
|
1023 |
}
|
|
|
1024 |
DebugLog::setfilename("stderr");
|
|
|
1025 |
DebugLog::getdbl()->setloglevel(DEBDEB2);
|
|
|
1026 |
|
|
|
1027 |
if (op_flags & OPT_c) {
|
|
|
1028 |
if (argc != 2) {
|
|
|
1029 |
Usage();
|
|
|
1030 |
}
|
|
|
1031 |
host = *argv++;
|
|
|
1032 |
argc--;
|
|
|
1033 |
serv = *argv++;
|
|
|
1034 |
argc--;
|
|
|
1035 |
exit(trycli(host, serv));
|
|
|
1036 |
} else if (op_flags & OPT_s) {
|
|
|
1037 |
if (argc != 1) {
|
|
|
1038 |
Usage();
|
|
|
1039 |
}
|
|
|
1040 |
serv = *argv++;
|
|
|
1041 |
argc--;
|
|
|
1042 |
exit(tryserv(serv));
|
|
|
1043 |
} else {
|
|
|
1044 |
Usage();
|
|
|
1045 |
}
|
|
|
1046 |
}
|
|
|
1047 |
|
|
|
1048 |
|
|
|
1049 |
static char buf[1024];
|
|
|
1050 |
static int buflen = 1023;
|
|
|
1051 |
static char fromcli[200];
|
|
|
1052 |
|
|
|
1053 |
class CliNetconWorker : public NetconWorker {
|
|
|
1054 |
public:
|
|
|
1055 |
CliNetconWorker() : m_count(0) {}
|
|
|
1056 |
int data(NetconData *con, Netcon::Event reason) {
|
|
|
1057 |
LOGDEB(("clientdata\n"));
|
|
|
1058 |
if (reason & Netcon::NETCONPOLL_WRITE) {
|
|
|
1059 |
sprintf(fromcli, "Bonjour Bonjour client %d, count %d",
|
|
|
1060 |
getpid(), m_count);
|
|
|
1061 |
con->setselevents(Netcon::NETCONPOLL_READ);
|
|
|
1062 |
if (con->send(fromcli, strlen(fromcli) + 1) < 0) {
|
|
|
1063 |
fprintf(stderr, "send failed\n");
|
|
|
1064 |
return -1;
|
|
|
1065 |
}
|
|
|
1066 |
m_count++;
|
|
|
1067 |
}
|
|
|
1068 |
|
|
|
1069 |
if (reason & Netcon::NETCONPOLL_READ) {
|
|
|
1070 |
con->setselevents(Netcon::NETCONPOLL_WRITE);
|
|
|
1071 |
int n;
|
|
|
1072 |
if ((n = con->receive(buf, buflen)) < 0) {
|
|
|
1073 |
fprintf(stderr, "receive failed\n");
|
|
|
1074 |
return -1;
|
|
|
1075 |
}
|
|
|
1076 |
if (n == 0) {
|
|
|
1077 |
// EOF, close connection
|
|
|
1078 |
return -1;
|
|
|
1079 |
}
|
|
|
1080 |
buf[n] = 0;
|
|
|
1081 |
fprintf(stderr, "%d received \"%s\"\n", getpid(), buf);
|
|
|
1082 |
if (op_flags & OPT_n) {
|
|
|
1083 |
pause();
|
|
|
1084 |
} else {
|
|
|
1085 |
sleep(1);
|
|
|
1086 |
}
|
|
|
1087 |
}
|
|
|
1088 |
if (m_count >= 10) {
|
|
|
1089 |
fprintf(stderr, "Did 10, enough\n");
|
|
|
1090 |
if (con->getloop()) {
|
|
|
1091 |
con->getloop()->loopReturn(0);
|
|
|
1092 |
}
|
|
|
1093 |
}
|
|
|
1094 |
return 0;
|
|
|
1095 |
}
|
|
|
1096 |
private:
|
|
|
1097 |
int m_count;
|
|
|
1098 |
};
|
|
|
1099 |
|
|
|
1100 |
int trycli(char *host, char *serv)
|
|
|
1101 |
{
|
|
|
1102 |
sprintf(fromcli, "Bonjour Bonjour je suis le client %d", getpid());
|
|
|
1103 |
|
|
|
1104 |
NetconCli *clicon = new NetconCli();
|
|
|
1105 |
NetconP con(clicon);
|
|
|
1106 |
if (!con) {
|
|
|
1107 |
fprintf(stderr, "new NetconCli failed\n");
|
|
|
1108 |
return 1;
|
|
|
1109 |
}
|
|
|
1110 |
if (clicon->openconn(host, serv) < 0) {
|
|
|
1111 |
fprintf(stderr, "openconn(%s, %s) failed\n", host, serv);
|
|
|
1112 |
return 1;
|
|
|
1113 |
}
|
|
|
1114 |
fprintf(stderr, "openconn(%s, %s) ok\n", host, serv);
|
|
|
1115 |
#ifdef NOSELLOOP
|
|
|
1116 |
for (int i = 0; i < nloop; i++) {
|
|
|
1117 |
if (con->send(fromcli, strlen(fromcli) + 1) < 0) {
|
|
|
1118 |
fprintf(stderr, "%d: Send failed\n", getpid());
|
|
|
1119 |
return 1;
|
|
|
1120 |
}
|
|
|
1121 |
if (con->receive(buf, buflen) < 0) {
|
|
|
1122 |
perror("receive:");
|
|
|
1123 |
fprintf(stderr, "%d: Receive failed\n", getpid());
|
|
|
1124 |
return 1;
|
|
|
1125 |
}
|
|
|
1126 |
fprintf(stderr, "%d Received \"%s\"\n", getpid(), buf);
|
|
|
1127 |
if (op_flags & OPT_n) {
|
|
|
1128 |
pause();
|
|
|
1129 |
} else {
|
|
|
1130 |
sleep(1);
|
|
|
1131 |
}
|
|
|
1132 |
}
|
|
|
1133 |
#else
|
|
|
1134 |
shared_ptr<CliNetconWorker> worker = make_shared<CliNetconWorker>();
|
|
|
1135 |
clicon->setcallback(worker);
|
|
|
1136 |
SelectLoop myloop;
|
|
|
1137 |
myloop.addselcon(con, Netcon::NETCONPOLL_WRITE);
|
|
|
1138 |
fprintf(stderr, "client ready\n");
|
|
|
1139 |
int ret = myloop.doLoop();
|
|
|
1140 |
if (ret < 0) {
|
|
|
1141 |
fprintf(stderr, "selectloop failed\n");
|
|
|
1142 |
exit(1);
|
|
|
1143 |
}
|
|
|
1144 |
fprintf(stderr, "selectloop returned %d\n", ret);
|
|
|
1145 |
#endif
|
|
|
1146 |
return 0;
|
|
|
1147 |
}
|
|
|
1148 |
|
|
|
1149 |
//////////////////////////////////////////////////////////////////
|
|
|
1150 |
// Server-side sample code
|
|
|
1151 |
class ServNetconWorker : public NetconWorker {
|
|
|
1152 |
public:
|
|
|
1153 |
ServNetconWorker() : m_count(0) {}
|
|
|
1154 |
int data(NetconData *con, Netcon::Event reason) {
|
|
|
1155 |
LOGDEB(("serverdata\n"));
|
|
|
1156 |
if (reason & Netcon::NETCONPOLL_WRITE) {
|
|
|
1157 |
con->setselevents(Netcon::NETCONPOLL_READ);
|
|
|
1158 |
char fromserv[200];
|
|
|
1159 |
sprintf(fromserv,
|
|
|
1160 |
"Du serveur: mon fd pour ce client est %d, mon compte %d",
|
|
|
1161 |
con->getfd(), ++m_count);
|
|
|
1162 |
if (con->send(fromserv, strlen(fromserv) + 1) < 0) {
|
|
|
1163 |
fprintf(stderr, "send failed\n");
|
|
|
1164 |
return -1;
|
|
|
1165 |
}
|
|
|
1166 |
}
|
|
|
1167 |
if (reason & Netcon::NETCONPOLL_READ) {
|
|
|
1168 |
#define LL 200
|
|
|
1169 |
char buf[LL + 1];
|
|
|
1170 |
int n;
|
|
|
1171 |
if ((n = con->receive(buf, LL)) < 0) {
|
|
|
1172 |
fprintf(stderr, "receive failed\n");
|
|
|
1173 |
return -1;
|
|
|
1174 |
}
|
|
|
1175 |
if (n == 0) {
|
|
|
1176 |
return -1;
|
|
|
1177 |
}
|
|
|
1178 |
buf[n] = 0;
|
|
|
1179 |
fprintf(stderr, "%d received \"%s\"\n", getpid(), buf);
|
|
|
1180 |
con->setselevents(Netcon::NETCONPOLL_READ | Netcon::NETCONPOLL_WRITE);
|
|
|
1181 |
}
|
|
|
1182 |
return 0;
|
|
|
1183 |
}
|
|
|
1184 |
private:
|
|
|
1185 |
int m_count;
|
|
|
1186 |
};
|
|
|
1187 |
|
|
|
1188 |
class MyNetconServLis : public NetconServLis {
|
|
|
1189 |
public:
|
|
|
1190 |
MyNetconServLis(SelectLoop& loop)
|
|
|
1191 |
: NetconServLis(), m_loop(loop) {
|
|
|
1192 |
}
|
|
|
1193 |
protected:
|
|
|
1194 |
int cando(Netcon::Event reason) {
|
|
|
1195 |
NetconServCon *con = accept();
|
|
|
1196 |
if (con == 0) {
|
|
|
1197 |
return -1;
|
|
|
1198 |
}
|
|
|
1199 |
shared_ptr<ServNetconWorker> worker =
|
|
|
1200 |
make_shared<ServNetconWorker>(ServNetconWorker());
|
|
|
1201 |
con->setcallback(worker);
|
|
|
1202 |
m_loop.addselcon(NetconP(con), NETCONPOLL_READ);
|
|
|
1203 |
return 1;
|
|
|
1204 |
}
|
|
|
1205 |
SelectLoop& m_loop;
|
|
|
1206 |
};
|
|
|
1207 |
|
|
|
1208 |
NetconP lis;
|
|
|
1209 |
|
|
|
1210 |
void
|
|
|
1211 |
onexit(int sig)
|
|
|
1212 |
{
|
|
|
1213 |
fprintf(stderr, "Onexit: ");
|
|
|
1214 |
if (sig == SIGQUIT) {
|
|
|
1215 |
kill(getpid(), SIGKILL);
|
|
|
1216 |
}
|
|
|
1217 |
fprintf(stderr, "Exiting\n");
|
|
|
1218 |
exit(0);
|
|
|
1219 |
}
|
|
|
1220 |
|
|
|
1221 |
int tryserv(char *serv)
|
|
|
1222 |
{
|
|
|
1223 |
signal(SIGCHLD, SIG_IGN);
|
|
|
1224 |
SelectLoop myloop;
|
|
|
1225 |
MyNetconServLis *servlis = new MyNetconServLis(myloop);
|
|
|
1226 |
lis = NetconP(servlis);
|
|
|
1227 |
if (!lis) {
|
|
|
1228 |
fprintf(stderr, "new NetconServLis failed\n");
|
|
|
1229 |
return 1;
|
|
|
1230 |
}
|
|
|
1231 |
|
|
|
1232 |
// Prepare for cleanup
|
|
|
1233 |
struct sigaction sa;
|
|
|
1234 |
sa.sa_flags = 0;
|
|
|
1235 |
sa.sa_handler = onexit;
|
|
|
1236 |
sigemptyset(&sa.sa_mask);
|
|
|
1237 |
sigaction(SIGINT, &sa, 0);
|
|
|
1238 |
sigaction(SIGQUIT, &sa, 0);
|
|
|
1239 |
sigaction(SIGTERM, &sa, 0);
|
|
|
1240 |
|
|
|
1241 |
if (servlis->openservice(serv) < 0) {
|
|
|
1242 |
fprintf(stderr, "openservice(%s) failed\n", serv);
|
|
|
1243 |
return 1;
|
|
|
1244 |
}
|
|
|
1245 |
myloop.addselcon(lis, Netcon::NETCONPOLL_READ);
|
|
|
1246 |
fprintf(stderr, "openservice(%s) Ok\n", serv);
|
|
|
1247 |
if (myloop.doLoop() < 0) {
|
|
|
1248 |
fprintf(stderr, "selectloop failed\n");
|
|
|
1249 |
exit(1);
|
|
|
1250 |
}
|
|
|
1251 |
return 0;
|
|
|
1252 |
}
|
|
|
1253 |
|
|
|
1254 |
#endif /* TEST_NETCON */
|