913 lines
22 KiB
C
913 lines
22 KiB
C
/*
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if 0
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#ifndef lint
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static const char sccsid[] = "@(#)utilities.c 8.3 (Berkeley) 5/30/95";
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#endif
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#endif
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#include <sys/cdefs.h>
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#define TELOPTS
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#define TELCMDS
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#define SLC_NAMES
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#include "arpa/telnet.h"
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include "general.h"
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#include "fdset.h"
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#include "ring.h"
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#include "defines.h"
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#include "externs.h"
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#ifdef AUTHENTICATION
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#include "libtelnet/auth.h"
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#endif
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#ifdef ENCRYPTION
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#include "libtelnet/encrypt.h"
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#endif
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FILE *NetTrace = 0; /* Not in bss, since needs to stay */
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int prettydump;
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/*
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* upcase()
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*
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* Upcase (in place) the argument.
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*/
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void
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upcase(char *argument)
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{
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int c;
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while ((c = *argument) != 0) {
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if (islower(c)) {
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*argument = toupper(c);
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}
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argument++;
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}
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}
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/*
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* SetSockOpt()
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*
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* Compensate for differences in 4.2 and 4.3 systems.
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*/
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int
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SetSockOpt(int fd, int level, int option, int yesno)
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{
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return setsockopt(fd, level, option,
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(char *)&yesno, sizeof yesno);
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}
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/*
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* The following are routines used to print out debugging information.
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*/
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unsigned char NetTraceFile[256] = "(standard output)";
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void
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SetNetTrace(char *file)
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{
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if (NetTrace && NetTrace != stdout)
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fclose(NetTrace);
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if (file && (strcmp(file, "-") != 0)) {
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NetTrace = fopen(file, "w");
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if (NetTrace) {
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strcpy((char *)NetTraceFile, file);
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return;
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}
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fprintf(stderr, "Cannot open %s.\n", file);
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}
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NetTrace = stdout;
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strcpy((char *)NetTraceFile, "(standard output)");
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}
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void
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Dump(char direction, unsigned char *buffer, int length)
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{
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# define BYTES_PER_LINE 32
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# define min(x,y) ((x<y)? x:y)
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unsigned char *pThis;
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int offset;
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offset = 0;
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while (length) {
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/* print one line */
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fprintf(NetTrace, "%c 0x%x\t", direction, offset);
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pThis = buffer;
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if (prettydump) {
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buffer = buffer + min(length, BYTES_PER_LINE/2);
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while (pThis < buffer) {
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fprintf(NetTrace, "%c%.2x",
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(((*pThis)&0xff) == 0xff) ? '*' : ' ',
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(*pThis)&0xff);
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pThis++;
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}
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length -= BYTES_PER_LINE/2;
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offset += BYTES_PER_LINE/2;
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} else {
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buffer = buffer + min(length, BYTES_PER_LINE);
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while (pThis < buffer) {
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fprintf(NetTrace, "%.2x", (*pThis)&0xff);
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pThis++;
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}
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length -= BYTES_PER_LINE;
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offset += BYTES_PER_LINE;
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}
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if (NetTrace == stdout) {
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fprintf(NetTrace, "\r\n");
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} else {
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fprintf(NetTrace, "\n");
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}
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if (length < 0) {
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fflush(NetTrace);
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return;
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}
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/* find next unique line */
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}
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fflush(NetTrace);
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}
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void
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printoption(const char *direction, int cmd, int option)
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{
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if (!showoptions)
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return;
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if (cmd == IAC) {
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if (TELCMD_OK(option))
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fprintf(NetTrace, "%s IAC %s", direction, TELCMD(option));
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else
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fprintf(NetTrace, "%s IAC %d", direction, option);
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} else {
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const char *fmt;
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fmt = (cmd == WILL) ? "WILL" : (cmd == WONT) ? "WONT" :
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(cmd == DO) ? "DO" : (cmd == DONT) ? "DONT" : 0;
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if (fmt) {
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fprintf(NetTrace, "%s %s ", direction, fmt);
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if (TELOPT_OK(option))
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fprintf(NetTrace, "%s", TELOPT(option));
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else if (option == TELOPT_EXOPL)
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fprintf(NetTrace, "EXOPL");
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else
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fprintf(NetTrace, "%d", option);
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} else
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fprintf(NetTrace, "%s %d %d", direction, cmd, option);
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}
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if (NetTrace == stdout) {
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fprintf(NetTrace, "\r\n");
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fflush(NetTrace);
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} else {
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fprintf(NetTrace, "\n");
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}
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return;
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}
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void
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optionstatus(void)
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{
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int i;
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extern char will_wont_resp[], do_dont_resp[];
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for (i = 0; i < 256; i++) {
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if (do_dont_resp[i]) {
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if (TELOPT_OK(i))
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printf("resp DO_DONT %s: %d\n", TELOPT(i), do_dont_resp[i]);
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else if (TELCMD_OK(i))
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printf("resp DO_DONT %s: %d\n", TELCMD(i), do_dont_resp[i]);
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else
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printf("resp DO_DONT %d: %d\n", i,
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do_dont_resp[i]);
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if (my_want_state_is_do(i)) {
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if (TELOPT_OK(i))
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printf("want DO %s\n", TELOPT(i));
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else if (TELCMD_OK(i))
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printf("want DO %s\n", TELCMD(i));
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else
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printf("want DO %d\n", i);
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} else {
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if (TELOPT_OK(i))
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printf("want DONT %s\n", TELOPT(i));
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else if (TELCMD_OK(i))
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printf("want DONT %s\n", TELCMD(i));
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else
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printf("want DONT %d\n", i);
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}
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} else {
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if (my_state_is_do(i)) {
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if (TELOPT_OK(i))
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printf(" DO %s\n", TELOPT(i));
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else if (TELCMD_OK(i))
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printf(" DO %s\n", TELCMD(i));
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else
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printf(" DO %d\n", i);
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}
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}
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if (will_wont_resp[i]) {
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if (TELOPT_OK(i))
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printf("resp WILL_WONT %s: %d\n", TELOPT(i), will_wont_resp[i]);
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else if (TELCMD_OK(i))
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printf("resp WILL_WONT %s: %d\n", TELCMD(i), will_wont_resp[i]);
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else
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printf("resp WILL_WONT %d: %d\n",
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i, will_wont_resp[i]);
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if (my_want_state_is_will(i)) {
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if (TELOPT_OK(i))
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printf("want WILL %s\n", TELOPT(i));
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else if (TELCMD_OK(i))
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printf("want WILL %s\n", TELCMD(i));
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else
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printf("want WILL %d\n", i);
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} else {
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if (TELOPT_OK(i))
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printf("want WONT %s\n", TELOPT(i));
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else if (TELCMD_OK(i))
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printf("want WONT %s\n", TELCMD(i));
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else
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printf("want WONT %d\n", i);
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}
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} else {
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if (my_state_is_will(i)) {
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if (TELOPT_OK(i))
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printf(" WILL %s\n", TELOPT(i));
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else if (TELCMD_OK(i))
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printf(" WILL %s\n", TELCMD(i));
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else
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printf(" WILL %d\n", i);
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}
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}
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}
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}
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void
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printsub(char direction, unsigned char *pointer, int length)
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{
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int i;
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#ifdef AUTHENTICATION
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char buf[512];
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#endif
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extern int want_status_response;
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if (showoptions || direction == 0 ||
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(want_status_response && (pointer[0] == TELOPT_STATUS))) {
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if (direction) {
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fprintf(NetTrace, "%s IAC SB ",
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(direction == '<')? "RCVD":"SENT");
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if (length >= 3) {
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int j;
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i = pointer[length-2];
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j = pointer[length-1];
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if (i != IAC || j != SE) {
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fprintf(NetTrace, "(terminated by ");
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if (TELOPT_OK(i))
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fprintf(NetTrace, "%s ", TELOPT(i));
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else if (TELCMD_OK(i))
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fprintf(NetTrace, "%s ", TELCMD(i));
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else
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fprintf(NetTrace, "%d ", i);
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if (TELOPT_OK(j))
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fprintf(NetTrace, "%s", TELOPT(j));
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else if (TELCMD_OK(j))
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fprintf(NetTrace, "%s", TELCMD(j));
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else
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fprintf(NetTrace, "%d", j);
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fprintf(NetTrace, ", not IAC SE!) ");
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}
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}
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length -= 2;
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}
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||
if (length < 1) {
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fprintf(NetTrace, "(Empty suboption??\?)");
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if (NetTrace == stdout)
|
||
fflush(NetTrace);
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||
return;
|
||
}
|
||
switch (pointer[0]) {
|
||
case TELOPT_TTYPE:
|
||
fprintf(NetTrace, "TERMINAL-TYPE ");
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||
switch (pointer[1]) {
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||
case TELQUAL_IS:
|
||
fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
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break;
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case TELQUAL_SEND:
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fprintf(NetTrace, "SEND");
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break;
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default:
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fprintf(NetTrace,
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"- unknown qualifier %d (0x%x).",
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pointer[1], pointer[1]);
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||
}
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||
break;
|
||
case TELOPT_TSPEED:
|
||
fprintf(NetTrace, "TERMINAL-SPEED");
|
||
if (length < 2) {
|
||
fprintf(NetTrace, " (empty suboption??\?)");
|
||
break;
|
||
}
|
||
switch (pointer[1]) {
|
||
case TELQUAL_IS:
|
||
fprintf(NetTrace, " IS ");
|
||
fprintf(NetTrace, "%.*s", length-2, (char *)pointer+2);
|
||
break;
|
||
default:
|
||
if (pointer[1] == 1)
|
||
fprintf(NetTrace, " SEND");
|
||
else
|
||
fprintf(NetTrace, " %d (unknown)", pointer[1]);
|
||
for (i = 2; i < length; i++)
|
||
fprintf(NetTrace, " ?%d?", pointer[i]);
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case TELOPT_LFLOW:
|
||
fprintf(NetTrace, "TOGGLE-FLOW-CONTROL");
|
||
if (length < 2) {
|
||
fprintf(NetTrace, " (empty suboption??\?)");
|
||
break;
|
||
}
|
||
switch (pointer[1]) {
|
||
case LFLOW_OFF:
|
||
fprintf(NetTrace, " OFF"); break;
|
||
case LFLOW_ON:
|
||
fprintf(NetTrace, " ON"); break;
|
||
case LFLOW_RESTART_ANY:
|
||
fprintf(NetTrace, " RESTART-ANY"); break;
|
||
case LFLOW_RESTART_XON:
|
||
fprintf(NetTrace, " RESTART-XON"); break;
|
||
default:
|
||
fprintf(NetTrace, " %d (unknown)", pointer[1]);
|
||
}
|
||
for (i = 2; i < length; i++)
|
||
fprintf(NetTrace, " ?%d?", pointer[i]);
|
||
break;
|
||
|
||
case TELOPT_NAWS:
|
||
fprintf(NetTrace, "NAWS");
|
||
if (length < 2) {
|
||
fprintf(NetTrace, " (empty suboption??\?)");
|
||
break;
|
||
}
|
||
if (length == 2) {
|
||
fprintf(NetTrace, " ?%d?", pointer[1]);
|
||
break;
|
||
}
|
||
fprintf(NetTrace, " %d %d (%d)",
|
||
pointer[1], pointer[2],
|
||
(int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2])));
|
||
if (length == 4) {
|
||
fprintf(NetTrace, " ?%d?", pointer[3]);
|
||
break;
|
||
}
|
||
fprintf(NetTrace, " %d %d (%d)",
|
||
pointer[3], pointer[4],
|
||
(int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4])));
|
||
for (i = 5; i < length; i++)
|
||
fprintf(NetTrace, " ?%d?", pointer[i]);
|
||
break;
|
||
|
||
#ifdef AUTHENTICATION
|
||
case TELOPT_AUTHENTICATION:
|
||
fprintf(NetTrace, "AUTHENTICATION");
|
||
if (length < 2) {
|
||
fprintf(NetTrace, " (empty suboption??\?)");
|
||
break;
|
||
}
|
||
switch (pointer[1]) {
|
||
case TELQUAL_REPLY:
|
||
case TELQUAL_IS:
|
||
fprintf(NetTrace, " %s ", (pointer[1] == TELQUAL_IS) ?
|
||
"IS" : "REPLY");
|
||
if (AUTHTYPE_NAME_OK(pointer[2]))
|
||
fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[2]));
|
||
else
|
||
fprintf(NetTrace, "%d ", pointer[2]);
|
||
if (length < 3) {
|
||
fprintf(NetTrace, "(partial suboption??\?)");
|
||
break;
|
||
}
|
||
fprintf(NetTrace, "%s|%s",
|
||
((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ?
|
||
"CLIENT" : "SERVER",
|
||
((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ?
|
||
"MUTUAL" : "ONE-WAY");
|
||
|
||
auth_printsub(&pointer[1], length - 1, buf, sizeof(buf));
|
||
fprintf(NetTrace, "%s", buf);
|
||
break;
|
||
|
||
case TELQUAL_SEND:
|
||
i = 2;
|
||
fprintf(NetTrace, " SEND ");
|
||
while (i < length) {
|
||
if (AUTHTYPE_NAME_OK(pointer[i]))
|
||
fprintf(NetTrace, "%s ", AUTHTYPE_NAME(pointer[i]));
|
||
else
|
||
fprintf(NetTrace, "%d ", pointer[i]);
|
||
if (++i >= length) {
|
||
fprintf(NetTrace, "(partial suboption??\?)");
|
||
break;
|
||
}
|
||
fprintf(NetTrace, "%s|%s ",
|
||
((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ?
|
||
"CLIENT" : "SERVER",
|
||
((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ?
|
||
"MUTUAL" : "ONE-WAY");
|
||
++i;
|
||
}
|
||
break;
|
||
|
||
case TELQUAL_NAME:
|
||
i = 2;
|
||
fprintf(NetTrace, " NAME \"");
|
||
while (i < length)
|
||
putc(pointer[i++], NetTrace);
|
||
putc('"', NetTrace);
|
||
break;
|
||
|
||
default:
|
||
for (i = 2; i < length; i++)
|
||
fprintf(NetTrace, " ?%d?", pointer[i]);
|
||
break;
|
||
}
|
||
break;
|
||
#endif
|
||
|
||
#ifdef ENCRYPTION
|
||
case TELOPT_ENCRYPT:
|
||
fprintf(NetTrace, "ENCRYPT");
|
||
if (length < 2) {
|
||
fprintf(NetTrace, " (empty suboption??\?)");
|
||
break;
|
||
}
|
||
switch (pointer[1]) {
|
||
case ENCRYPT_START:
|
||
fprintf(NetTrace, " START");
|
||
break;
|
||
|
||
case ENCRYPT_END:
|
||
fprintf(NetTrace, " END");
|
||
break;
|
||
|
||
case ENCRYPT_REQSTART:
|
||
fprintf(NetTrace, " REQUEST-START");
|
||
break;
|
||
|
||
case ENCRYPT_REQEND:
|
||
fprintf(NetTrace, " REQUEST-END");
|
||
break;
|
||
|
||
case ENCRYPT_IS:
|
||
case ENCRYPT_REPLY:
|
||
fprintf(NetTrace, " %s ", (pointer[1] == ENCRYPT_IS) ?
|
||
"IS" : "REPLY");
|
||
if (length < 3) {
|
||
fprintf(NetTrace, " (partial suboption??\?)");
|
||
break;
|
||
}
|
||
if (ENCTYPE_NAME_OK(pointer[2]))
|
||
fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[2]));
|
||
else
|
||
fprintf(NetTrace, " %d (unknown)", pointer[2]);
|
||
|
||
encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf));
|
||
fprintf(NetTrace, "%s", buf);
|
||
break;
|
||
|
||
case ENCRYPT_SUPPORT:
|
||
i = 2;
|
||
fprintf(NetTrace, " SUPPORT ");
|
||
while (i < length) {
|
||
if (ENCTYPE_NAME_OK(pointer[i]))
|
||
fprintf(NetTrace, "%s ", ENCTYPE_NAME(pointer[i]));
|
||
else
|
||
fprintf(NetTrace, "%d ", pointer[i]);
|
||
i++;
|
||
}
|
||
break;
|
||
|
||
case ENCRYPT_ENC_KEYID:
|
||
fprintf(NetTrace, " ENC_KEYID ");
|
||
goto encommon;
|
||
|
||
case ENCRYPT_DEC_KEYID:
|
||
fprintf(NetTrace, " DEC_KEYID ");
|
||
goto encommon;
|
||
|
||
default:
|
||
fprintf(NetTrace, " %d (unknown)", pointer[1]);
|
||
encommon:
|
||
for (i = 2; i < length; i++)
|
||
fprintf(NetTrace, " %d", pointer[i]);
|
||
break;
|
||
}
|
||
break;
|
||
#endif /* ENCRYPTION */
|
||
|
||
case TELOPT_LINEMODE:
|
||
fprintf(NetTrace, "LINEMODE ");
|
||
if (length < 2) {
|
||
fprintf(NetTrace, " (empty suboption??\?)");
|
||
break;
|
||
}
|
||
switch (pointer[1]) {
|
||
case WILL:
|
||
fprintf(NetTrace, "WILL ");
|
||
goto common;
|
||
case WONT:
|
||
fprintf(NetTrace, "WONT ");
|
||
goto common;
|
||
case DO:
|
||
fprintf(NetTrace, "DO ");
|
||
goto common;
|
||
case DONT:
|
||
fprintf(NetTrace, "DONT ");
|
||
common:
|
||
if (length < 3) {
|
||
fprintf(NetTrace, "(no option??\?)");
|
||
break;
|
||
}
|
||
switch (pointer[2]) {
|
||
case LM_FORWARDMASK:
|
||
fprintf(NetTrace, "Forward Mask");
|
||
for (i = 3; i < length; i++)
|
||
fprintf(NetTrace, " %x", pointer[i]);
|
||
break;
|
||
default:
|
||
fprintf(NetTrace, "%d (unknown)", pointer[2]);
|
||
for (i = 3; i < length; i++)
|
||
fprintf(NetTrace, " %d", pointer[i]);
|
||
break;
|
||
}
|
||
break;
|
||
|
||
case LM_SLC:
|
||
fprintf(NetTrace, "SLC");
|
||
for (i = 2; i < length - 2; i += 3) {
|
||
if (SLC_NAME_OK(pointer[i+SLC_FUNC]))
|
||
fprintf(NetTrace, " %s", SLC_NAME(pointer[i+SLC_FUNC]));
|
||
else
|
||
fprintf(NetTrace, " %d", pointer[i+SLC_FUNC]);
|
||
switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) {
|
||
case SLC_NOSUPPORT:
|
||
fprintf(NetTrace, " NOSUPPORT"); break;
|
||
case SLC_CANTCHANGE:
|
||
fprintf(NetTrace, " CANTCHANGE"); break;
|
||
case SLC_VARIABLE:
|
||
fprintf(NetTrace, " VARIABLE"); break;
|
||
case SLC_DEFAULT:
|
||
fprintf(NetTrace, " DEFAULT"); break;
|
||
}
|
||
fprintf(NetTrace, "%s%s%s",
|
||
pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "",
|
||
pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "",
|
||
pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : "");
|
||
if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN|
|
||
SLC_FLUSHOUT| SLC_LEVELBITS))
|
||
fprintf(NetTrace, "(0x%x)", pointer[i+SLC_FLAGS]);
|
||
fprintf(NetTrace, " %d;", pointer[i+SLC_VALUE]);
|
||
if ((pointer[i+SLC_VALUE] == IAC) &&
|
||
(pointer[i+SLC_VALUE+1] == IAC))
|
||
i++;
|
||
}
|
||
for (; i < length; i++)
|
||
fprintf(NetTrace, " ?%d?", pointer[i]);
|
||
break;
|
||
|
||
case LM_MODE:
|
||
fprintf(NetTrace, "MODE ");
|
||
if (length < 3) {
|
||
fprintf(NetTrace, "(no mode??\?)");
|
||
break;
|
||
}
|
||
{
|
||
char tbuf[64];
|
||
sprintf(tbuf, "%s%s%s%s%s",
|
||
pointer[2]&MODE_EDIT ? "|EDIT" : "",
|
||
pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "",
|
||
pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "",
|
||
pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "",
|
||
pointer[2]&MODE_ACK ? "|ACK" : "");
|
||
fprintf(NetTrace, "%s", tbuf[1] ? &tbuf[1] : "0");
|
||
}
|
||
if (pointer[2]&~(MODE_MASK))
|
||
fprintf(NetTrace, " (0x%x)", pointer[2]);
|
||
for (i = 3; i < length; i++)
|
||
fprintf(NetTrace, " ?0x%x?", pointer[i]);
|
||
break;
|
||
default:
|
||
fprintf(NetTrace, "%d (unknown)", pointer[1]);
|
||
for (i = 2; i < length; i++)
|
||
fprintf(NetTrace, " %d", pointer[i]);
|
||
}
|
||
break;
|
||
|
||
case TELOPT_STATUS: {
|
||
const char *cp;
|
||
int j, k;
|
||
|
||
fprintf(NetTrace, "STATUS");
|
||
|
||
switch (pointer[1]) {
|
||
default:
|
||
if (pointer[1] == TELQUAL_SEND)
|
||
fprintf(NetTrace, " SEND");
|
||
else
|
||
fprintf(NetTrace, " %d (unknown)", pointer[1]);
|
||
for (i = 2; i < length; i++)
|
||
fprintf(NetTrace, " ?%d?", pointer[i]);
|
||
break;
|
||
case TELQUAL_IS:
|
||
if (--want_status_response < 0)
|
||
want_status_response = 0;
|
||
if (NetTrace == stdout)
|
||
fprintf(NetTrace, " IS\r\n");
|
||
else
|
||
fprintf(NetTrace, " IS\n");
|
||
|
||
for (i = 2; i < length; i++) {
|
||
switch(pointer[i]) {
|
||
case DO: cp = "DO"; goto common2;
|
||
case DONT: cp = "DONT"; goto common2;
|
||
case WILL: cp = "WILL"; goto common2;
|
||
case WONT: cp = "WONT"; goto common2;
|
||
common2:
|
||
i++;
|
||
if (TELOPT_OK((int)pointer[i]))
|
||
fprintf(NetTrace, " %s %s", cp, TELOPT(pointer[i]));
|
||
else
|
||
fprintf(NetTrace, " %s %d", cp, pointer[i]);
|
||
|
||
if (NetTrace == stdout)
|
||
fprintf(NetTrace, "\r\n");
|
||
else
|
||
fprintf(NetTrace, "\n");
|
||
break;
|
||
|
||
case SB:
|
||
fprintf(NetTrace, " SB ");
|
||
i++;
|
||
j = k = i;
|
||
while (j < length) {
|
||
if (pointer[j] == SE) {
|
||
if (j+1 == length)
|
||
break;
|
||
if (pointer[j+1] == SE)
|
||
j++;
|
||
else
|
||
break;
|
||
}
|
||
pointer[k++] = pointer[j++];
|
||
}
|
||
printsub(0, &pointer[i], k - i);
|
||
if (i < length) {
|
||
fprintf(NetTrace, " SE");
|
||
i = j;
|
||
} else
|
||
i = j - 1;
|
||
|
||
if (NetTrace == stdout)
|
||
fprintf(NetTrace, "\r\n");
|
||
else
|
||
fprintf(NetTrace, "\n");
|
||
|
||
break;
|
||
|
||
default:
|
||
fprintf(NetTrace, " %d", pointer[i]);
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
break;
|
||
}
|
||
|
||
case TELOPT_XDISPLOC:
|
||
fprintf(NetTrace, "X-DISPLAY-LOCATION ");
|
||
switch (pointer[1]) {
|
||
case TELQUAL_IS:
|
||
fprintf(NetTrace, "IS \"%.*s\"", length-2, (char *)pointer+2);
|
||
break;
|
||
case TELQUAL_SEND:
|
||
fprintf(NetTrace, "SEND");
|
||
break;
|
||
default:
|
||
fprintf(NetTrace, "- unknown qualifier %d (0x%x).",
|
||
pointer[1], pointer[1]);
|
||
}
|
||
break;
|
||
|
||
case TELOPT_NEW_ENVIRON:
|
||
fprintf(NetTrace, "NEW-ENVIRON ");
|
||
#ifdef OLD_ENVIRON
|
||
goto env_common1;
|
||
case TELOPT_OLD_ENVIRON:
|
||
fprintf(NetTrace, "OLD-ENVIRON");
|
||
env_common1:
|
||
#endif
|
||
switch (pointer[1]) {
|
||
case TELQUAL_IS:
|
||
fprintf(NetTrace, "IS ");
|
||
goto env_common;
|
||
case TELQUAL_SEND:
|
||
fprintf(NetTrace, "SEND ");
|
||
goto env_common;
|
||
case TELQUAL_INFO:
|
||
fprintf(NetTrace, "INFO ");
|
||
env_common:
|
||
{
|
||
int noquote = 2;
|
||
#if defined(ENV_HACK) && defined(OLD_ENVIRON)
|
||
extern int old_env_var, old_env_value;
|
||
#endif
|
||
for (i = 2; i < length; i++ ) {
|
||
switch (pointer[i]) {
|
||
case NEW_ENV_VALUE:
|
||
#ifdef OLD_ENVIRON
|
||
/* case NEW_ENV_OVAR: */
|
||
if (pointer[0] == TELOPT_OLD_ENVIRON) {
|
||
# ifdef ENV_HACK
|
||
if (old_env_var == OLD_ENV_VALUE)
|
||
fprintf(NetTrace, "\" (VALUE) " + noquote);
|
||
else
|
||
# endif
|
||
fprintf(NetTrace, "\" VAR " + noquote);
|
||
} else
|
||
#endif /* OLD_ENVIRON */
|
||
fprintf(NetTrace, "%s", "\" VALUE " + noquote);
|
||
noquote = 2;
|
||
break;
|
||
|
||
case NEW_ENV_VAR:
|
||
#ifdef OLD_ENVIRON
|
||
/* case OLD_ENV_VALUE: */
|
||
if (pointer[0] == TELOPT_OLD_ENVIRON) {
|
||
# ifdef ENV_HACK
|
||
if (old_env_value == OLD_ENV_VAR)
|
||
fprintf(NetTrace, "\" (VAR) " + noquote);
|
||
else
|
||
# endif
|
||
fprintf(NetTrace, "\" VALUE " + noquote);
|
||
} else
|
||
#endif /* OLD_ENVIRON */
|
||
fprintf(NetTrace, "%s", "\" VAR " + noquote);
|
||
noquote = 2;
|
||
break;
|
||
|
||
case ENV_ESC:
|
||
fprintf(NetTrace, "%s", "\" ESC " + noquote);
|
||
noquote = 2;
|
||
break;
|
||
|
||
case ENV_USERVAR:
|
||
fprintf(NetTrace, "%s", "\" USERVAR " + noquote);
|
||
noquote = 2;
|
||
break;
|
||
|
||
default:
|
||
if (isprint(pointer[i]) && pointer[i] != '"') {
|
||
if (noquote) {
|
||
putc('"', NetTrace);
|
||
noquote = 0;
|
||
}
|
||
putc(pointer[i], NetTrace);
|
||
} else {
|
||
fprintf(NetTrace, "\" %03o " + noquote,
|
||
pointer[i]);
|
||
noquote = 2;
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
if (!noquote)
|
||
putc('"', NetTrace);
|
||
break;
|
||
}
|
||
}
|
||
break;
|
||
|
||
default:
|
||
if (TELOPT_OK(pointer[0]))
|
||
fprintf(NetTrace, "%s (unknown)", TELOPT(pointer[0]));
|
||
else
|
||
fprintf(NetTrace, "%d (unknown)", pointer[0]);
|
||
for (i = 1; i < length; i++)
|
||
fprintf(NetTrace, " %d", pointer[i]);
|
||
break;
|
||
}
|
||
if (direction) {
|
||
if (NetTrace == stdout)
|
||
fprintf(NetTrace, "\r\n");
|
||
else
|
||
fprintf(NetTrace, "\n");
|
||
}
|
||
if (NetTrace == stdout)
|
||
fflush(NetTrace);
|
||
}
|
||
}
|
||
|
||
/* EmptyTerminal - called to make sure that the terminal buffer is empty.
|
||
* Note that we consider the buffer to run all the
|
||
* way to the kernel (thus the select).
|
||
*/
|
||
|
||
static void
|
||
EmptyTerminal(void)
|
||
{
|
||
fd_set o;
|
||
|
||
FD_ZERO(&o);
|
||
|
||
if (TTYBYTES() == 0) {
|
||
FD_SET(tout, &o);
|
||
(void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
|
||
(struct timeval *) 0); /* wait for TTLOWAT */
|
||
} else {
|
||
while (TTYBYTES()) {
|
||
(void) ttyflush(0);
|
||
FD_SET(tout, &o);
|
||
(void) select(tout+1, (fd_set *) 0, &o, (fd_set *) 0,
|
||
(struct timeval *) 0); /* wait for TTLOWAT */
|
||
}
|
||
}
|
||
}
|
||
|
||
static void
|
||
SetForExit(void)
|
||
{
|
||
setconnmode(0);
|
||
do {
|
||
(void)telrcv(); /* Process any incoming data */
|
||
EmptyTerminal();
|
||
} while (ring_full_count(&netiring)); /* While there is any */
|
||
setcommandmode();
|
||
fflush(stdout);
|
||
fflush(stderr);
|
||
setconnmode(0);
|
||
EmptyTerminal(); /* Flush the path to the tty */
|
||
setcommandmode();
|
||
}
|
||
|
||
void
|
||
Exit(int returnCode)
|
||
{
|
||
SetForExit();
|
||
exit(returnCode);
|
||
}
|
||
|
||
void
|
||
ExitString(const char *string, int returnCode)
|
||
{
|
||
SetForExit();
|
||
fwrite(string, 1, strlen(string), stderr);
|
||
exit(returnCode);
|
||
}
|