Removed obsolete mbtelind and mbtelout
This commit is contained in:
Michiel Broek
parent
8fd5458841
commit
5174b7af66
@ -12,7 +12,7 @@ SRCS = zmmisc.c zmrle.c zmrecv.c zmsend.c binkp.c md5b.c \
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filetime.c ftsc.c atoul.c portsel.c telnet.c \
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ttyio.c lutil.c scanout.c emsi.c ulock.c \
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callstat.c session.c call.c mbcico.c \
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outstat.c nlinfo.c mbout.c mbtelind.c mbtelout.c
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outstat.c nlinfo.c mbout.c
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HDRS = zmodem.h binkp.h config.h statetbl.h md5b.h \
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xmsend.h xmrecv.h m7recv.h m7send.h hydra.h inbound.h \
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answer.h chat.h dial.h dietifna.h emsidat.h filelist.h \
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@ -21,7 +21,7 @@ HDRS = zmodem.h binkp.h config.h statetbl.h md5b.h \
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filetime.h ftsc.h atoul.h portsel.h telnet.h \
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ttyio.h lutil.h scanout.h emsi.h ulock.h \
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callstat.h session.h call.h mbcico.h \
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outstat.h nlinfo.h mbtelind.h mbtelout.h
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outstat.h nlinfo.h
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MBCICO_OBJS = zmmisc.o zmrle.o zmrecv.o zmsend.o binkp.o md5b.o \
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xmsend.o xmrecv.o m7recv.o m7send.o hydra.o inbound.o \
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answer.o chat.o dial.o dietifna.o emsidat.o filelist.o \
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@ -31,12 +31,10 @@ MBCICO_OBJS = zmmisc.o zmrle.o zmrecv.o zmsend.o binkp.o md5b.o \
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ttyio.o lutil.o scanout.o emsi.o ulock.o \
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callstat.o session.o call.o mbcico.o
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MBOUT_OBJS = outstat.o nlinfo.o mbout.o scanout.o callstat.o
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MBTELIND_OBJS = mbtelind.o
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MBTELOUT_OBJS = mbtelout.o
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LIBS += ../lib/libclcomm.a ../lib/libcommon.a \
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../lib/libmsgbase.a ../lib/libdbase.a ../lib/libnodelist.a
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OTHER = Makefile README
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TARGET = mbcico mbout mbtelind mbtelout
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TARGET = mbcico mbout
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#############################################################################
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@ -51,8 +49,6 @@ clean:
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install: all
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${INSTALL} -c -s -g ${GROUP} -o ${OWNER} -m 4751 mbcico ${BINDIR}
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${INSTALL} -c -s -g ${GROUP} -o ${OWNER} -m 0755 mbout ${BINDIR}
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${INSTALL} -c -s -g ${GROUP} -o ${OWNER} -m 0755 mbtelind ${BINDIR}
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${INSTALL} -c -s -g ${GROUP} -o ${OWNER} -m 0755 mbtelout ${BINDIR}
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mbcico: ${MBCICO_OBJS} ${LIBS}
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${CC} -o mbcico ${MBCICO_OBJS} ${LDFLAGS} ${LIBS}
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@ -60,12 +56,6 @@ mbcico: ${MBCICO_OBJS} ${LIBS}
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mbout: ${MBOUT_OBJS} ${LIBS}
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${CC} -o mbout ${MBOUT_OBJS} ${LDFLAGS} ${LIBS}
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mbtelind: ${MBTELIND_OBJS} ${LIBS}
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${CC} -o mbtelind ${MBTELIND_OBJS} ${LDFLAGS} ${LIBS}
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mbtelout: ${MBTELOUT_OBJS} ${LIBS}
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${CC} -o mbtelout ${MBTELOUT_OBJS} ${LDFLAGS} ${LIBS}
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filelist: Makefile
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BASE=`pwd`; \
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BASE=`basename $${BASE}`; \
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@ -1,388 +0,0 @@
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/*****************************************************************************
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*
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* $Id$
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* Purpose ...............: Fidonet telnet input proxy daemon
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*
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*****************************************************************************
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* Copyright (C) 1997-2003
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*
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* Michiel Broek FIDO: 2:280/2802
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* Beekmansbos 10
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* 1971 BV IJmuiden
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* the Netherlands
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*
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* This file is part of MBSE BBS.
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*
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* This BBS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2, or (at your option) any
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* later version.
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*
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* MBSE BBS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 MBSE BBS; see the file COPYING. If not, write to the Free
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* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*****************************************************************************/
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/*
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Simple proxy daemon for ifcico to work with SIO/VMODEM.
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========================================================
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Written by: Vadim Zaliva, lord@crocodile.kiev.ua, 2:463/80
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This software is provided ``as is'' without express or implied warranty.
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Feel free to distribute it.
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Feel free to contact me with improovments request
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and bug reports.
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Some parts of this code are taken from
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1. serge terekhov, 2:5000/13@fidonet path for ifmail
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2. Vadim Kurland, vadim@gu.kiev.ua transl daemon.
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Thanks them.
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*/
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#include "../config.h"
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#include "../lib/libs.h"
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#include "../lib/structs.h"
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#include "../lib/users.h"
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#include "../lib/records.h"
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#include "../lib/common.h"
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#include "../lib/clcomm.h"
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#include "../lib/dbcfg.h"
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#include "../lib/mberrors.h"
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#include "mbtelind.h"
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/*
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* Timeout, less then 10 minutes because we need to keep the connection
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* with mbtask alive.
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*/
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#define MBT_TIMEOUT 500
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#define MBT_BUFLEN 8192
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char *envptr = NULL;
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time_t t_start, t_end;
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static int tellen;
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void die(int onsig)
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{
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signal(onsig, SIG_IGN);
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if (onsig) {
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if (onsig <= NSIG)
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WriteError("Terminated on signal %d (%s)", onsig, SigName[onsig]);
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else
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Syslog('+', "Terminated with error %d", onsig);
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}
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t_end = time(NULL);
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Syslog(' ', "MBTELIND finished in %s", t_elapsed(t_start, t_end));
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if (envptr)
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free(envptr);
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ExitClient(onsig);
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}
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int main(int ac, char **av)
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{
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struct sockaddr_in peeraddr;
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int addrlen = sizeof(struct sockaddr_in);
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char *remote_name = NULL;
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char *remote_port = NULL;
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int s; /* socket to remote*/
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int i;
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struct hostent *hp;
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struct servent *sp;
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struct sockaddr_in server;
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char *tmp = NULL;
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struct passwd *pw;
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/*
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* The next trick is to supply a fake environment variable
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* MBSE_ROOT in case we are started from inetd or mgetty,
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* this will setup the variable so InitConfig() will work.
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* The /etc/passwd must point to the correct homedirectory.
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*/
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pw = getpwuid(getuid());
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if (getenv("MBSE_ROOT") == NULL) {
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envptr = xstrcpy((char *)"MBSE_ROOT=");
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envptr = xstrcat(envptr, pw->pw_dir);
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putenv(envptr);
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}
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InitConfig();
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t_start = time(NULL);
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InitClient(pw->pw_name, (char *)"mbtelind", CFG.location, CFG.logfile,
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CFG.util_loglevel, CFG.error_log, CFG.mgrlog, CFG.debuglog);
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Syslog(' ', " ");
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Syslog(' ', "MBTELIND v%s", VERSION);
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/*
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* Catch all signals we can, and ignore the rest.
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*/
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for (i = 0; i < NSIG; i++) {
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if ((i == SIGINT) || (i == SIGBUS) || (i == SIGILL) || (i == SIGSEGV) || (i == SIGTERM) || (i == SIGKILL)) {
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signal(i, (void (*))die);
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} else {
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signal(i, SIG_IGN);
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}
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}
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remote_name = xstrcpy((char *)"localhost");
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remote_port = xstrcpy((char *)"fido");
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if (getpeername(0,(struct sockaddr*)&peeraddr,&addrlen) == 0) {
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tmp = strdup(inet_ntoa(peeraddr.sin_addr));
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Syslog('+', "Incoming TCP connection from %s", tmp ? tmp : "Unknown");
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Syslog('+', "Rerouting to %s:%s", remote_name, remote_port);
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}
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if (tmp)
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free(tmp);
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if ((sp = getservbyname(remote_port, "tcp")) == NULL) {
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WriteError("Can't find service: %s", remote_port);
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free(remote_name);
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free(remote_port);
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die(MBERR_INIT_ERROR);
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}
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if ((s = socket(AF_INET,SOCK_STREAM,0)) == -1) {
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WriteError("Can't create Internet domain socket");
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free(remote_name);
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free(remote_port);
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die(MBERR_INIT_ERROR);
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}
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if ((hp = gethostbyname(remote_name)) == NULL) {
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WriteError("%s - Unknown host", remote_name);
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free(remote_name);
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free(remote_port);
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die(MBERR_INIT_ERROR);
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}
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memset(&server,0,sizeof(server));
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memcpy((char *)&server.sin_addr,hp->h_addr,hp->h_length);
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server.sin_family=hp->h_addrtype;
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server.sin_port = sp->s_port;
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if (connect(s,(struct sockaddr *)&server,sizeof(server)) == -1) {
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WriteError("Can't connect %s", remote_name);
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free(remote_name);
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free(remote_port);
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die(MBERR_INIT_ERROR);
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}
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telnet_init();
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tmp = calloc(81, sizeof(char ));
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sprintf(tmp, "mbtelind v%s\r\n", VERSION);
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telnet_write(tmp, strlen(tmp));
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free(tmp);
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com_gw(s);
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free(remote_name);
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free(remote_port);
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close(s);
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die(0);
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return 0;
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}
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void com_gw(int in)
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{
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fd_set fds;
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int n, fdsbits;
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static struct timeval tout = { MBT_TIMEOUT, 0 };
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unsigned char buf[MBT_BUFLEN];
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alarm(0);
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fdsbits = in + 1;
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while (TRUE) {
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FD_ZERO(& fds);
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FD_SET (in, &fds);
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FD_SET (0 , &fds);
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FD_SET (1 , &fds);
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tout.tv_sec = MBT_TIMEOUT;
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tout.tv_usec = 0;
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if ((n = select(fdsbits, &fds, NULL, NULL, &tout)) > 0) {
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if (FD_ISSET(in, &fds)) {
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if ((n = read(in, buf, sizeof buf)) > 0) {
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if (telnet_write(buf, n) < 0) {
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goto bad;
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}
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} else {
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goto bad;
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}
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}
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if (FD_ISSET(0, &fds)) {
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if ((n = telnet_read(buf, sizeof buf)) > 0) {
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if (write(in, buf, n) < 0) goto bad;
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} else {
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goto bad;
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}
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}
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} else {
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goto bad;
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}
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Nopper();
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}
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bad: ;
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}
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/* --- This is an artwork of serge terekhov, 2:5000/13@fidonet :) --- */
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void telnet_answer(int tag, int opt)
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{
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char buf[3];
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char *r = (char *)"???";
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switch (tag) {
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case WILL:
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r = (char *)"WILL";
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break;
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case WONT:
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r = (char *)"WONT";
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break;
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case DO:
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r = (char *)"DO";
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break;
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case DONT:
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r = (char *)"DONT";
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break;
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}
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Syslog('s', "Telnet: send %s %d", r, opt);
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buf[0] = IAC;
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buf[1] = tag;
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buf[2] = opt;
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if (write (1, buf, 3) != 3)
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WriteError("$answer cant send");
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}
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int telnet_init(void)
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{
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Syslog('s', "telnet_init()");
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tellen = 0;
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telnet_answer(DO, TOPT_SUPP);
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telnet_answer(WILL, TOPT_SUPP);
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telnet_answer(DO, TOPT_BIN);
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telnet_answer(WILL, TOPT_BIN);
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telnet_answer(DO, TOPT_ECHO);
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telnet_answer(WILL, TOPT_ECHO);
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return 1;
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}
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/*
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* Read function for mbtelnetd
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*/
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int telnet_read(char *buf, int len)
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{
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int n = 0, m;
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char *q, *p;
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static char telbuf[4];
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while ((n == 0) && (n = read (0, buf + tellen, MBT_BUFLEN - tellen)) > 0) {
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if (n < 0) {
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return n;
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}
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if (tellen) {
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memcpy(buf, telbuf, tellen);
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n += tellen;
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tellen = 0;
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}
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if (memchr (buf, IAC, n)) {
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for (p = q = buf; n--; )
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if ((m = (unsigned char)*q++) != IAC)
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*p++ = m;
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else {
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if (n < 2) {
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memcpy (telbuf, q - 1, tellen = n + 1);
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break;
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}
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--n;
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switch (m = (unsigned char)*q++) {
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case WILL: m = (unsigned char)*q++; --n;
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Syslog('s', "Telnet: recv WILL %d", m);
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if (m != TOPT_BIN && m != TOPT_SUPP && m != TOPT_ECHO)
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telnet_answer(DONT, m);
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break;
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case WONT: m = *q++;
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--n;
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Syslog('s', "Telnet: recv WONT %d", m);
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break;
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case DO: m = (unsigned char)*q++;
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--n;
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Syslog('s', "Telnet: recv DO %d", m);
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if (m != TOPT_BIN && m != TOPT_SUPP && m != TOPT_ECHO)
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telnet_answer(WONT, m);
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break;
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case DONT: m = (unsigned char)*q++;
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--n;
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Syslog('s', "Telnet: recv DONT %d", m);
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break;
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case IAC: *p++ = IAC;
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break;
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default: Syslog('s', "Telnet: recv IAC %d, not good", m);
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break;
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}
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}
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n = p - buf;
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}
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}
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return n;
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}
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/*
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* Telnet output filter, IAC characters are escaped.
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*/
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int telnet_write(char *buf, int len)
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{
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char *q;
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int k, l;
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l = len;
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while ((len > 0) && (q = memchr(buf, IAC, len))) {
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k = (q - buf) + 1;
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if ((write(1, buf, k) != k) || (write(1, q, 1) != 1)) {
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return -1;
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}
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buf += k;
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len -= k;
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}
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if ((len > 0) && write(1, buf, len) != len) {
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return -1;
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}
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return l;
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}
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@ -1,25 +0,0 @@
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#ifndef _MBTELIND_H
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#define _MBTELIND_H
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/* $Id$ */
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#define MBT_WILL 251
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#define MBT_WONT 252
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#define MBT_DO 253
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#define MBT_DONT 254
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#define MBT_IAC 255
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#define TOPT_BIN 0
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#define TOPT_ECHO 1
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#define TOPT_SUPP 3
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void die(int);
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void com_gw(int);
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void telnet_answer(int, int);
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int telnet_init(void);
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int telnet_read(char *, int);
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int telnet_write(char *, int);
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int telnet_buffer(char *, int);
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#endif
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@ -1,370 +0,0 @@
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/*****************************************************************************
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*
|
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* $Id$
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||||
* Purpose ...............: Fidonet telnet output proxy
|
||||
*
|
||||
*****************************************************************************
|
||||
* Copyright (C) 1997-2003
|
||||
*
|
||||
* Michiel Broek FIDO: 2:280/2802
|
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* Beekmansbos 10
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* 1971 BV IJmuiden
|
||||
* the Netherlands
|
||||
*
|
||||
* This file is part of MBSE BBS.
|
||||
*
|
||||
* This BBS 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.
|
||||
*
|
||||
* MBSE BBS 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 MBSE BBS; see the file COPYING. If not, write to the Free
|
||||
* Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
|
||||
*****************************************************************************/
|
||||
|
||||
#include "../config.h"
|
||||
#include "../lib/libs.h"
|
||||
#include "../lib/structs.h"
|
||||
#include "../lib/users.h"
|
||||
#include "../lib/records.h"
|
||||
#include "../lib/common.h"
|
||||
#include "../lib/clcomm.h"
|
||||
#include "../lib/dbcfg.h"
|
||||
#include "../lib/mberrors.h"
|
||||
#include "mbtelout.h"
|
||||
|
||||
|
||||
/*
|
||||
* Timeout, less then 10 minutes because we need to keep the connection
|
||||
* with mbtask alive.
|
||||
*/
|
||||
#define MBT_TIMEOUT 500
|
||||
#define MBT_BUFLEN 8192
|
||||
|
||||
|
||||
char *envptr = NULL;
|
||||
time_t t_start, t_end;
|
||||
static int tellen;
|
||||
|
||||
|
||||
|
||||
void die(int onsig)
|
||||
{
|
||||
signal(onsig, SIG_IGN);
|
||||
|
||||
if (onsig) {
|
||||
if (onsig <= NSIG)
|
||||
WriteError("Terminated on signal %d (%s)", onsig, SigName[onsig]);
|
||||
else
|
||||
Syslog('+', "Terminated with error %d", onsig);
|
||||
}
|
||||
|
||||
t_end = time(NULL);
|
||||
Syslog(' ', "MBTELOUT finished in %s", t_elapsed(t_start, t_end));
|
||||
if (envptr)
|
||||
free(envptr);
|
||||
ExitClient(onsig);
|
||||
}
|
||||
|
||||
|
||||
|
||||
int main(int ac, char **av)
|
||||
{
|
||||
struct sockaddr_in peeraddr;
|
||||
int addrlen = sizeof(struct sockaddr_in);
|
||||
char *remote_name = NULL;
|
||||
char *remote_port = NULL;
|
||||
int s; /* socket to remote*/
|
||||
int i;
|
||||
struct hostent *hp;
|
||||
struct servent *sp;
|
||||
struct sockaddr_in server;
|
||||
char *tmp = NULL;
|
||||
struct passwd *pw;
|
||||
|
||||
/*
|
||||
* The next trick is to supply a fake environment variable
|
||||
* MBSE_ROOT in case we are started from inetd or mgetty,
|
||||
* this will setup the variable so InitConfig() will work.
|
||||
* The /etc/passwd must point to the correct homedirectory.
|
||||
*/
|
||||
pw = getpwuid(getuid());
|
||||
if (getenv("MBSE_ROOT") == NULL) {
|
||||
envptr = xstrcpy((char *)"MBSE_ROOT=");
|
||||
envptr = xstrcat(envptr, pw->pw_dir);
|
||||
putenv(envptr);
|
||||
}
|
||||
|
||||
InitConfig();
|
||||
t_start = time(NULL);
|
||||
|
||||
InitClient(pw->pw_name, (char *)"mbtelout", CFG.location, CFG.logfile,
|
||||
CFG.util_loglevel, CFG.error_log, CFG.mgrlog, CFG.debuglog);
|
||||
|
||||
Syslog(' ', " ");
|
||||
Syslog(' ', "MBTELOUT v%s", VERSION);
|
||||
|
||||
/*
|
||||
* Catch all signals we can, and ignore the rest.
|
||||
*/
|
||||
for (i = 0; i < NSIG; i++) {
|
||||
if ((i == SIGINT) || (i == SIGBUS) || (i == SIGILL) || (i == SIGSEGV) || (i == SIGTERM) || (i == SIGKILL)) {
|
||||
signal(i, (void (*))die);
|
||||
} else {
|
||||
signal(i, SIG_IGN);
|
||||
}
|
||||
}
|
||||
|
||||
remote_name = xstrcpy((char *)"localhost");
|
||||
remote_port = xstrcpy((char *)"fido");
|
||||
|
||||
if (getpeername(0,(struct sockaddr*)&peeraddr,&addrlen) == 0) {
|
||||
tmp = strdup(inet_ntoa(peeraddr.sin_addr));
|
||||
Syslog('+', "Incoming TCP connection from %s", tmp ? tmp : "Unknown");
|
||||
Syslog('+', "Rerouting to %s:%s", remote_name, remote_port);
|
||||
}
|
||||
|
||||
if (tmp)
|
||||
free(tmp);
|
||||
|
||||
if ((sp = getservbyname(remote_port, "tcp")) == NULL) {
|
||||
WriteError("Can't find service: %s", remote_port);
|
||||
free(remote_name);
|
||||
free(remote_port);
|
||||
die(MBERR_INIT_ERROR);
|
||||
}
|
||||
|
||||
if ((s = socket(AF_INET,SOCK_STREAM,0)) == -1) {
|
||||
WriteError("Can't create Internet domain socket");
|
||||
free(remote_name);
|
||||
free(remote_port);
|
||||
die(MBERR_INIT_ERROR);
|
||||
}
|
||||
|
||||
if ((hp = gethostbyname(remote_name)) == NULL) {
|
||||
WriteError("%s - Unknown host", remote_name);
|
||||
free(remote_name);
|
||||
free(remote_port);
|
||||
die(MBERR_INIT_ERROR);
|
||||
}
|
||||
|
||||
memset(&server,0,sizeof(server));
|
||||
memcpy((char *)&server.sin_addr,hp->h_addr,hp->h_length);
|
||||
|
||||
server.sin_family=hp->h_addrtype;
|
||||
server.sin_port = sp->s_port;
|
||||
|
||||
if (connect(s,(struct sockaddr *)&server,sizeof(server)) == -1) {
|
||||
WriteError("Can't connect %s", remote_name);
|
||||
free(remote_name);
|
||||
free(remote_port);
|
||||
die(MBERR_INIT_ERROR);
|
||||
}
|
||||
|
||||
telnet_init();
|
||||
|
||||
tmp = calloc(81, sizeof(char ));
|
||||
sprintf(tmp, "mbtelout v%s\r\n", VERSION);
|
||||
telnet_write(tmp, strlen(tmp));
|
||||
free(tmp);
|
||||
|
||||
com_gw(s);
|
||||
|
||||
free(remote_name);
|
||||
free(remote_port);
|
||||
close(s);
|
||||
die(0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void com_gw(int in)
|
||||
{
|
||||
fd_set fds;
|
||||
int n, fdsbits;
|
||||
static struct timeval tout = { MBT_TIMEOUT, 0 };
|
||||
unsigned char buf[MBT_BUFLEN];
|
||||
|
||||
alarm(0);
|
||||
fdsbits = in + 1;
|
||||
|
||||
while (TRUE) {
|
||||
FD_ZERO(& fds);
|
||||
FD_SET (in, &fds);
|
||||
FD_SET (0 , &fds);
|
||||
FD_SET (1 , &fds);
|
||||
|
||||
tout.tv_sec = MBT_TIMEOUT;
|
||||
tout.tv_usec = 0;
|
||||
if ((n = select(fdsbits, &fds, NULL, NULL, &tout)) > 0) {
|
||||
if (FD_ISSET(in, &fds)) {
|
||||
if ((n = read(in, buf, sizeof buf)) > 0) {
|
||||
if (telnet_write(buf, n) < 0) {
|
||||
goto bad;
|
||||
}
|
||||
} else {
|
||||
goto bad;
|
||||
}
|
||||
}
|
||||
if (FD_ISSET(0, &fds)) {
|
||||
if ((n = telnet_read(buf, sizeof buf)) > 0) {
|
||||
if (write(in, buf, n) < 0) goto bad;
|
||||
} else {
|
||||
goto bad;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
goto bad;
|
||||
}
|
||||
Nopper();
|
||||
}
|
||||
bad: ;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/* --- This is an artwork of serge terekhov, 2:5000/13@fidonet :) --- */
|
||||
|
||||
void telnet_answer(int tag, int opt)
|
||||
{
|
||||
char buf[3];
|
||||
char *r = (char *)"???";
|
||||
|
||||
switch (tag) {
|
||||
case WILL:
|
||||
r = (char *)"WILL";
|
||||
break;
|
||||
case WONT:
|
||||
r = (char *)"WONT";
|
||||
break;
|
||||
case DO:
|
||||
r = (char *)"DO";
|
||||
break;
|
||||
case DONT:
|
||||
r = (char *)"DONT";
|
||||
break;
|
||||
}
|
||||
Syslog('s', "Telnet: send %s %d", r, opt);
|
||||
|
||||
buf[0] = IAC;
|
||||
buf[1] = tag;
|
||||
buf[2] = opt;
|
||||
if (write (1, buf, 3) != 3)
|
||||
WriteError("$answer cant send");
|
||||
}
|
||||
|
||||
|
||||
|
||||
int telnet_init(void)
|
||||
{
|
||||
Syslog('s', "telnet_init()");
|
||||
tellen = 0;
|
||||
telnet_answer(DO, TOPT_SUPP);
|
||||
telnet_answer(WILL, TOPT_SUPP);
|
||||
telnet_answer(DO, TOPT_BIN);
|
||||
telnet_answer(WILL, TOPT_BIN);
|
||||
telnet_answer(DO, TOPT_ECHO);
|
||||
telnet_answer(WILL, TOPT_ECHO);
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Read function for mbtelnetd
|
||||
*/
|
||||
int telnet_read(char *buf, int len)
|
||||
{
|
||||
int n = 0, m;
|
||||
char *q, *p;
|
||||
static char telbuf[4];
|
||||
|
||||
while ((n == 0) && (n = read (0, buf + tellen, MBT_BUFLEN - tellen)) > 0) {
|
||||
|
||||
if (n < 0) {
|
||||
return n;
|
||||
}
|
||||
|
||||
if (tellen) {
|
||||
memcpy(buf, telbuf, tellen);
|
||||
n += tellen;
|
||||
tellen = 0;
|
||||
}
|
||||
|
||||
if (memchr (buf, IAC, n)) {
|
||||
for (p = q = buf; n--; )
|
||||
if ((m = (unsigned char)*q++) != IAC)
|
||||
*p++ = m;
|
||||
else {
|
||||
if (n < 2) {
|
||||
memcpy (telbuf, q - 1, tellen = n + 1);
|
||||
break;
|
||||
}
|
||||
--n;
|
||||
switch (m = (unsigned char)*q++) {
|
||||
case WILL: m = (unsigned char)*q++; --n;
|
||||
Syslog('s', "Telnet: recv WILL %d", m);
|
||||
if (m != TOPT_BIN && m != TOPT_SUPP && m != TOPT_ECHO)
|
||||
telnet_answer(DONT, m);
|
||||
break;
|
||||
case WONT: m = *q++;
|
||||
--n;
|
||||
Syslog('s', "Telnet: recv WONT %d", m);
|
||||
break;
|
||||
case DO: m = (unsigned char)*q++;
|
||||
--n;
|
||||
Syslog('s', "Telnet: recv DO %d", m);
|
||||
if (m != TOPT_BIN && m != TOPT_SUPP && m != TOPT_ECHO)
|
||||
telnet_answer(WONT, m);
|
||||
break;
|
||||
case DONT: m = (unsigned char)*q++;
|
||||
--n;
|
||||
Syslog('s', "Telnet: recv DONT %d", m);
|
||||
break;
|
||||
case IAC: *p++ = IAC;
|
||||
break;
|
||||
default: Syslog('s', "Telnet: recv IAC %d, not good", m);
|
||||
break;
|
||||
}
|
||||
}
|
||||
n = p - buf;
|
||||
}
|
||||
}
|
||||
|
||||
return n;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/*
|
||||
* Telnet output filter, IAC characters are escaped.
|
||||
*/
|
||||
int telnet_write(char *buf, int len)
|
||||
{
|
||||
char *q;
|
||||
int k, l;
|
||||
|
||||
l = len;
|
||||
while ((len > 0) && (q = memchr(buf, IAC, len))) {
|
||||
k = (q - buf) + 1;
|
||||
if ((write(1, buf, k) != k) || (write(1, q, 1) != 1)) {
|
||||
return -1;
|
||||
}
|
||||
buf += k;
|
||||
len -= k;
|
||||
}
|
||||
|
||||
if ((len > 0) && write(1, buf, len) != len) {
|
||||
return -1;
|
||||
}
|
||||
return l;
|
||||
}
|
||||
|
||||
|
||||
@ -1,25 +0,0 @@
|
||||
#ifndef _MBTELOUT_H
|
||||
#define _MBTELOUT_H
|
||||
|
||||
/* $Id$ */
|
||||
|
||||
#define MBT_WILL 251
|
||||
#define MBT_WONT 252
|
||||
#define MBT_DO 253
|
||||
#define MBT_DONT 254
|
||||
#define MBT_IAC 255
|
||||
|
||||
#define TOPT_BIN 0
|
||||
#define TOPT_ECHO 1
|
||||
#define TOPT_SUPP 3
|
||||
|
||||
|
||||
void die(int);
|
||||
void com_gw(int);
|
||||
void telnet_answer(int, int);
|
||||
int telnet_init(void);
|
||||
int telnet_read(char *, int);
|
||||
int telnet_write(char *, int);
|
||||
int telnet_buffer(char *, int);
|
||||
|
||||
#endif
|
||||
Reference in New Issue
Block a user