utility.c revision 29181
129088Smarkm/* 229088Smarkm * Copyright (c) 1989, 1993 329088Smarkm * The Regents of the University of California. All rights reserved. 429088Smarkm * 529088Smarkm * Redistribution and use in source and binary forms, with or without 629088Smarkm * modification, are permitted provided that the following conditions 729088Smarkm * are met: 829088Smarkm * 1. Redistributions of source code must retain the above copyright 929088Smarkm * notice, this list of conditions and the following disclaimer. 1029088Smarkm * 2. Redistributions in binary form must reproduce the above copyright 1129088Smarkm * notice, this list of conditions and the following disclaimer in the 1229088Smarkm * documentation and/or other materials provided with the distribution. 1329088Smarkm * 3. All advertising materials mentioning features or use of this software 1429088Smarkm * must display the following acknowledgement: 1529088Smarkm * This product includes software developed by the University of 1629088Smarkm * California, Berkeley and its contributors. 1729088Smarkm * 4. Neither the name of the University nor the names of its contributors 1829088Smarkm * may be used to endorse or promote products derived from this software 1929088Smarkm * without specific prior written permission. 2029088Smarkm * 2129088Smarkm * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2229088Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2329088Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2429088Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2529088Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2629088Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2729088Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2829088Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2929088Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3029088Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3129088Smarkm * SUCH DAMAGE. 3229088Smarkm */ 3329088Smarkm 3429088Smarkm#ifndef lint 3529181Smarkmstatic const char sccsid[] = "@(#)utility.c 8.4 (Berkeley) 5/30/95"; 3629088Smarkm#endif /* not lint */ 3729088Smarkm 3829181Smarkm#ifdef __FreeBSD__ 3929181Smarkm#include <locale.h> 4029181Smarkm#endif 4129088Smarkm#define PRINTOPTIONS 4229088Smarkm#include "telnetd.h" 4329088Smarkm 4429181Smarkm#if defined(AUTHENTICATION) 4529181Smarkm#include <libtelnet/auth.h> 4629181Smarkm#endif 4729181Smarkm#if defined(ENCRYPTION) 4829181Smarkm#include <libtelnet/encrypt.h> 4929181Smarkm#endif 5029181Smarkm 5129088Smarkm/* 5229088Smarkm * utility functions performing io related tasks 5329088Smarkm */ 5429088Smarkm 5529088Smarkm/* 5629088Smarkm * ttloop 5729088Smarkm * 5829088Smarkm * A small subroutine to flush the network output buffer, get some data 5929088Smarkm * from the network, and pass it through the telnet state machine. We 6029088Smarkm * also flush the pty input buffer (by dropping its data) if it becomes 6129088Smarkm * too full. 6229088Smarkm */ 6329088Smarkm 6429088Smarkm void 6529088Smarkmttloop() 6629088Smarkm{ 6729088Smarkm void netflush(); 6829088Smarkm 6929088Smarkm DIAG(TD_REPORT, {sprintf(nfrontp, "td: ttloop\r\n"); 7029088Smarkm nfrontp += strlen(nfrontp);}); 7129088Smarkm if (nfrontp-nbackp) { 7229088Smarkm netflush(); 7329088Smarkm } 7429088Smarkm ncc = read(net, netibuf, sizeof netibuf); 7529088Smarkm if (ncc < 0) { 7629088Smarkm syslog(LOG_INFO, "ttloop: read: %m\n"); 7729088Smarkm exit(1); 7829088Smarkm } else if (ncc == 0) { 7929088Smarkm syslog(LOG_INFO, "ttloop: peer died: %m\n"); 8029088Smarkm exit(1); 8129088Smarkm } 8229088Smarkm DIAG(TD_REPORT, {sprintf(nfrontp, "td: ttloop read %d chars\r\n", ncc); 8329088Smarkm nfrontp += strlen(nfrontp);}); 8429088Smarkm netip = netibuf; 8529088Smarkm telrcv(); /* state machine */ 8629088Smarkm if (ncc > 0) { 8729088Smarkm pfrontp = pbackp = ptyobuf; 8829088Smarkm telrcv(); 8929088Smarkm } 9029088Smarkm} /* end of ttloop */ 9129088Smarkm 9229088Smarkm/* 9329088Smarkm * Check a descriptor to see if out of band data exists on it. 9429088Smarkm */ 9529088Smarkm int 9629088Smarkmstilloob(s) 9729088Smarkm int s; /* socket number */ 9829088Smarkm{ 9929088Smarkm static struct timeval timeout = { 0 }; 10029088Smarkm fd_set excepts; 10129088Smarkm int value; 10229088Smarkm 10329088Smarkm do { 10429088Smarkm FD_ZERO(&excepts); 10529088Smarkm FD_SET(s, &excepts); 10629181Smarkm memset((char *)&timeout, 0, sizeof timeout); 10729088Smarkm value = select(s+1, (fd_set *)0, (fd_set *)0, &excepts, &timeout); 10829088Smarkm } while ((value == -1) && (errno == EINTR)); 10929088Smarkm 11029088Smarkm if (value < 0) { 11129088Smarkm fatalperror(pty, "select"); 11229088Smarkm } 11329088Smarkm if (FD_ISSET(s, &excepts)) { 11429088Smarkm return 1; 11529088Smarkm } else { 11629088Smarkm return 0; 11729088Smarkm } 11829088Smarkm} 11929088Smarkm 12029088Smarkm void 12129088Smarkmptyflush() 12229088Smarkm{ 12329088Smarkm int n; 12429088Smarkm 12529088Smarkm if ((n = pfrontp - pbackp) > 0) { 12629088Smarkm DIAG((TD_REPORT | TD_PTYDATA), 12729088Smarkm { sprintf(nfrontp, "td: ptyflush %d chars\r\n", n); 12829088Smarkm nfrontp += strlen(nfrontp); }); 12929088Smarkm DIAG(TD_PTYDATA, printdata("pd", pbackp, n)); 13029088Smarkm n = write(pty, pbackp, n); 13129088Smarkm } 13229088Smarkm if (n < 0) { 13329088Smarkm if (errno == EWOULDBLOCK || errno == EINTR) 13429088Smarkm return; 13529088Smarkm cleanup(0); 13629088Smarkm } 13729088Smarkm pbackp += n; 13829088Smarkm if (pbackp == pfrontp) 13929088Smarkm pbackp = pfrontp = ptyobuf; 14029088Smarkm} 14129088Smarkm 14229088Smarkm/* 14329088Smarkm * nextitem() 14429088Smarkm * 14529088Smarkm * Return the address of the next "item" in the TELNET data 14629088Smarkm * stream. This will be the address of the next character if 14729088Smarkm * the current address is a user data character, or it will 14829088Smarkm * be the address of the character following the TELNET command 14929088Smarkm * if the current address is a TELNET IAC ("I Am a Command") 15029088Smarkm * character. 15129088Smarkm */ 15229088Smarkm char * 15329088Smarkmnextitem(current) 15429088Smarkm char *current; 15529088Smarkm{ 15629088Smarkm if ((*current&0xff) != IAC) { 15729088Smarkm return current+1; 15829088Smarkm } 15929088Smarkm switch (*(current+1)&0xff) { 16029088Smarkm case DO: 16129088Smarkm case DONT: 16229088Smarkm case WILL: 16329088Smarkm case WONT: 16429088Smarkm return current+3; 16529088Smarkm case SB: /* loop forever looking for the SE */ 16629088Smarkm { 16729088Smarkm register char *look = current+2; 16829088Smarkm 16929088Smarkm for (;;) { 17029088Smarkm if ((*look++&0xff) == IAC) { 17129088Smarkm if ((*look++&0xff) == SE) { 17229088Smarkm return look; 17329088Smarkm } 17429088Smarkm } 17529088Smarkm } 17629088Smarkm } 17729088Smarkm default: 17829088Smarkm return current+2; 17929088Smarkm } 18029088Smarkm} /* end of nextitem */ 18129088Smarkm 18229088Smarkm 18329088Smarkm/* 18429088Smarkm * netclear() 18529088Smarkm * 18629088Smarkm * We are about to do a TELNET SYNCH operation. Clear 18729088Smarkm * the path to the network. 18829088Smarkm * 18929088Smarkm * Things are a bit tricky since we may have sent the first 19029088Smarkm * byte or so of a previous TELNET command into the network. 19129088Smarkm * So, we have to scan the network buffer from the beginning 19229088Smarkm * until we are up to where we want to be. 19329088Smarkm * 19429088Smarkm * A side effect of what we do, just to keep things 19529088Smarkm * simple, is to clear the urgent data pointer. The principal 19629088Smarkm * caller should be setting the urgent data pointer AFTER calling 19729088Smarkm * us in any case. 19829088Smarkm */ 19929088Smarkm void 20029088Smarkmnetclear() 20129088Smarkm{ 20229088Smarkm register char *thisitem, *next; 20329088Smarkm char *good; 20429088Smarkm#define wewant(p) ((nfrontp > p) && ((*p&0xff) == IAC) && \ 20529088Smarkm ((*(p+1)&0xff) != EC) && ((*(p+1)&0xff) != EL)) 20629088Smarkm 20729088Smarkm#ifdef ENCRYPTION 20829088Smarkm thisitem = nclearto > netobuf ? nclearto : netobuf; 20929088Smarkm#else /* ENCRYPTION */ 21029088Smarkm thisitem = netobuf; 21129088Smarkm#endif /* ENCRYPTION */ 21229088Smarkm 21329088Smarkm while ((next = nextitem(thisitem)) <= nbackp) { 21429088Smarkm thisitem = next; 21529088Smarkm } 21629088Smarkm 21729088Smarkm /* Now, thisitem is first before/at boundary. */ 21829088Smarkm 21929088Smarkm#ifdef ENCRYPTION 22029088Smarkm good = nclearto > netobuf ? nclearto : netobuf; 22129088Smarkm#else /* ENCRYPTION */ 22229088Smarkm good = netobuf; /* where the good bytes go */ 22329088Smarkm#endif /* ENCRYPTION */ 22429088Smarkm 22529088Smarkm while (nfrontp > thisitem) { 22629088Smarkm if (wewant(thisitem)) { 22729088Smarkm int length; 22829088Smarkm 22929088Smarkm next = thisitem; 23029088Smarkm do { 23129088Smarkm next = nextitem(next); 23229088Smarkm } while (wewant(next) && (nfrontp > next)); 23329088Smarkm length = next-thisitem; 23429088Smarkm memmove(good, thisitem, length); 23529088Smarkm good += length; 23629088Smarkm thisitem = next; 23729088Smarkm } else { 23829088Smarkm thisitem = nextitem(thisitem); 23929088Smarkm } 24029088Smarkm } 24129088Smarkm 24229088Smarkm nbackp = netobuf; 24329088Smarkm nfrontp = good; /* next byte to be sent */ 24429088Smarkm neturg = 0; 24529088Smarkm} /* end of netclear */ 24629088Smarkm 24729088Smarkm/* 24829088Smarkm * netflush 24929088Smarkm * Send as much data as possible to the network, 25029088Smarkm * handling requests for urgent data. 25129088Smarkm */ 25229088Smarkm void 25329088Smarkmnetflush() 25429088Smarkm{ 25529088Smarkm int n; 25629088Smarkm extern int not42; 25729088Smarkm 25829088Smarkm if ((n = nfrontp - nbackp) > 0) { 25929088Smarkm DIAG(TD_REPORT, 26029088Smarkm { sprintf(nfrontp, "td: netflush %d chars\r\n", n); 26129088Smarkm n += strlen(nfrontp); /* get count first */ 26229088Smarkm nfrontp += strlen(nfrontp); /* then move pointer */ 26329088Smarkm }); 26429088Smarkm#ifdef ENCRYPTION 26529088Smarkm if (encrypt_output) { 26629088Smarkm char *s = nclearto ? nclearto : nbackp; 26729088Smarkm if (nfrontp - s > 0) { 26829088Smarkm (*encrypt_output)((unsigned char *)s, nfrontp-s); 26929088Smarkm nclearto = nfrontp; 27029088Smarkm } 27129088Smarkm } 27229088Smarkm#endif /* ENCRYPTION */ 27329088Smarkm /* 27429088Smarkm * if no urgent data, or if the other side appears to be an 27529088Smarkm * old 4.2 client (and thus unable to survive TCP urgent data), 27629088Smarkm * write the entire buffer in non-OOB mode. 27729088Smarkm */ 27829088Smarkm if ((neturg == 0) || (not42 == 0)) { 27929088Smarkm n = write(net, nbackp, n); /* normal write */ 28029088Smarkm } else { 28129088Smarkm n = neturg - nbackp; 28229088Smarkm /* 28329088Smarkm * In 4.2 (and 4.3) systems, there is some question about 28429088Smarkm * what byte in a sendOOB operation is the "OOB" data. 28529088Smarkm * To make ourselves compatible, we only send ONE byte 28629088Smarkm * out of band, the one WE THINK should be OOB (though 28729088Smarkm * we really have more the TCP philosophy of urgent data 28829088Smarkm * rather than the Unix philosophy of OOB data). 28929088Smarkm */ 29029088Smarkm if (n > 1) { 29129088Smarkm n = send(net, nbackp, n-1, 0); /* send URGENT all by itself */ 29229088Smarkm } else { 29329088Smarkm n = send(net, nbackp, n, MSG_OOB); /* URGENT data */ 29429088Smarkm } 29529088Smarkm } 29629088Smarkm } 29729088Smarkm if (n < 0) { 29829088Smarkm if (errno == EWOULDBLOCK || errno == EINTR) 29929088Smarkm return; 30029088Smarkm cleanup(0); 30129088Smarkm } 30229088Smarkm nbackp += n; 30329088Smarkm#ifdef ENCRYPTION 30429088Smarkm if (nbackp > nclearto) 30529088Smarkm nclearto = 0; 30629088Smarkm#endif /* ENCRYPTION */ 30729088Smarkm if (nbackp >= neturg) { 30829088Smarkm neturg = 0; 30929088Smarkm } 31029088Smarkm if (nbackp == nfrontp) { 31129088Smarkm nbackp = nfrontp = netobuf; 31229088Smarkm#ifdef ENCRYPTION 31329088Smarkm nclearto = 0; 31429088Smarkm#endif /* ENCRYPTION */ 31529088Smarkm } 31629088Smarkm return; 31729088Smarkm} /* end of netflush */ 31829088Smarkm 31929088Smarkm 32029088Smarkm/* 32129088Smarkm * writenet 32229088Smarkm * 32329088Smarkm * Just a handy little function to write a bit of raw data to the net. 32429088Smarkm * It will force a transmit of the buffer if necessary 32529088Smarkm * 32629088Smarkm * arguments 32729088Smarkm * ptr - A pointer to a character string to write 32829088Smarkm * len - How many bytes to write 32929088Smarkm */ 33029088Smarkm void 33129088Smarkmwritenet(ptr, len) 33229088Smarkm register unsigned char *ptr; 33329088Smarkm register int len; 33429088Smarkm{ 33529088Smarkm /* flush buffer if no room for new data) */ 33629088Smarkm if ((&netobuf[BUFSIZ] - nfrontp) < len) { 33729088Smarkm /* if this fails, don't worry, buffer is a little big */ 33829088Smarkm netflush(); 33929088Smarkm } 34029088Smarkm 34129088Smarkm memmove(nfrontp, ptr, len); 34229088Smarkm nfrontp += len; 34329088Smarkm 34429088Smarkm} /* end of writenet */ 34529088Smarkm 34629088Smarkm 34729088Smarkm/* 34829088Smarkm * miscellaneous functions doing a variety of little jobs follow ... 34929088Smarkm */ 35029088Smarkm 35129088Smarkm 35229088Smarkm void 35329088Smarkmfatal(f, msg) 35429088Smarkm int f; 35529088Smarkm char *msg; 35629088Smarkm{ 35729088Smarkm char buf[BUFSIZ]; 35829088Smarkm 35929088Smarkm (void) sprintf(buf, "telnetd: %s.\r\n", msg); 36029088Smarkm#ifdef ENCRYPTION 36129088Smarkm if (encrypt_output) { 36229088Smarkm /* 36329088Smarkm * Better turn off encryption first.... 36429088Smarkm * Hope it flushes... 36529088Smarkm */ 36629088Smarkm encrypt_send_end(); 36729088Smarkm netflush(); 36829088Smarkm } 36929088Smarkm#endif /* ENCRYPTION */ 37029088Smarkm (void) write(f, buf, (int)strlen(buf)); 37129088Smarkm sleep(1); /*XXX*/ 37229088Smarkm exit(1); 37329088Smarkm} 37429088Smarkm 37529088Smarkm void 37629088Smarkmfatalperror(f, msg) 37729088Smarkm int f; 37829088Smarkm char *msg; 37929088Smarkm{ 38029088Smarkm char buf[BUFSIZ], *strerror(); 38129088Smarkm 38229088Smarkm (void) sprintf(buf, "%s: %s", msg, strerror(errno)); 38329088Smarkm fatal(f, buf); 38429088Smarkm} 38529088Smarkm 38629088Smarkmchar editedhost[32]; 38729088Smarkm 38829088Smarkm void 38929088Smarkmedithost(pat, host) 39029088Smarkm register char *pat; 39129088Smarkm register char *host; 39229088Smarkm{ 39329088Smarkm register char *res = editedhost; 39429088Smarkm char *strncpy(); 39529088Smarkm 39629088Smarkm if (!pat) 39729088Smarkm pat = ""; 39829088Smarkm while (*pat) { 39929088Smarkm switch (*pat) { 40029088Smarkm 40129088Smarkm case '#': 40229088Smarkm if (*host) 40329088Smarkm host++; 40429088Smarkm break; 40529088Smarkm 40629088Smarkm case '@': 40729088Smarkm if (*host) 40829088Smarkm *res++ = *host++; 40929088Smarkm break; 41029088Smarkm 41129088Smarkm default: 41229088Smarkm *res++ = *pat; 41329088Smarkm break; 41429088Smarkm } 41529088Smarkm if (res == &editedhost[sizeof editedhost - 1]) { 41629088Smarkm *res = '\0'; 41729088Smarkm return; 41829088Smarkm } 41929088Smarkm pat++; 42029088Smarkm } 42129088Smarkm if (*host) 42229088Smarkm (void) strncpy(res, host, 42329088Smarkm sizeof editedhost - (res - editedhost) -1); 42429088Smarkm else 42529088Smarkm *res = '\0'; 42629088Smarkm editedhost[sizeof editedhost - 1] = '\0'; 42729088Smarkm} 42829088Smarkm 42929088Smarkmstatic char *putlocation; 43029088Smarkm 43129088Smarkm void 43229088Smarkmputstr(s) 43329088Smarkm register char *s; 43429088Smarkm{ 43529088Smarkm 43629088Smarkm while (*s) 43729088Smarkm putchr(*s++); 43829088Smarkm} 43929088Smarkm 44029088Smarkm void 44129088Smarkmputchr(cc) 44229088Smarkm int cc; 44329088Smarkm{ 44429088Smarkm *putlocation++ = cc; 44529088Smarkm} 44629088Smarkm 44729181Smarkm#ifdef __FreeBSD__ 44829181Smarkmstatic char fmtstr[] = { "%+" }; 44929181Smarkm#else 45029088Smarkm/* 45129088Smarkm * This is split on two lines so that SCCS will not see the M 45229088Smarkm * between two % signs and expand it... 45329088Smarkm */ 45429088Smarkmstatic char fmtstr[] = { "%l:%M\ 45529088Smarkm%P on %A, %d %B %Y" }; 45629181Smarkm#endif 45729088Smarkm 45829088Smarkm void 45929088Smarkmputf(cp, where) 46029088Smarkm register char *cp; 46129088Smarkm char *where; 46229088Smarkm{ 46329088Smarkm char *slash; 46429088Smarkm time_t t; 46529088Smarkm char db[100]; 46629088Smarkm#ifdef STREAMSPTY 46729088Smarkm extern char *strchr(); 46829088Smarkm#else 46929088Smarkm extern char *strrchr(); 47029088Smarkm#endif 47129088Smarkm 47229088Smarkm putlocation = where; 47329088Smarkm 47429088Smarkm while (*cp) { 47529088Smarkm if (*cp != '%') { 47629088Smarkm putchr(*cp++); 47729088Smarkm continue; 47829088Smarkm } 47929088Smarkm switch (*++cp) { 48029088Smarkm 48129088Smarkm case 't': 48229088Smarkm#ifdef STREAMSPTY 48329088Smarkm /* names are like /dev/pts/2 -- we want pts/2 */ 48429088Smarkm slash = strchr(line+1, '/'); 48529088Smarkm#else 48629088Smarkm slash = strrchr(line, '/'); 48729088Smarkm#endif 48829088Smarkm if (slash == (char *) 0) 48929088Smarkm putstr(line); 49029088Smarkm else 49129088Smarkm putstr(&slash[1]); 49229088Smarkm break; 49329088Smarkm 49429088Smarkm case 'h': 49529088Smarkm putstr(editedhost); 49629088Smarkm break; 49729088Smarkm 49829088Smarkm case 'd': 49929181Smarkm#ifdef __FreeBSD__ 50029181Smarkm setlocale(LC_TIME, ""); 50129181Smarkm#endif 50229088Smarkm (void)time(&t); 50329088Smarkm (void)strftime(db, sizeof(db), fmtstr, localtime(&t)); 50429088Smarkm putstr(db); 50529088Smarkm break; 50629088Smarkm 50729088Smarkm case '%': 50829088Smarkm putchr('%'); 50929088Smarkm break; 51029088Smarkm } 51129088Smarkm cp++; 51229088Smarkm } 51329088Smarkm} 51429088Smarkm 51529088Smarkm#ifdef DIAGNOSTICS 51629088Smarkm/* 51729088Smarkm * Print telnet options and commands in plain text, if possible. 51829088Smarkm */ 51929088Smarkm void 52029088Smarkmprintoption(fmt, option) 52129088Smarkm register char *fmt; 52229088Smarkm register int option; 52329088Smarkm{ 52429088Smarkm if (TELOPT_OK(option)) 52529088Smarkm sprintf(nfrontp, "%s %s\r\n", fmt, TELOPT(option)); 52629088Smarkm else if (TELCMD_OK(option)) 52729088Smarkm sprintf(nfrontp, "%s %s\r\n", fmt, TELCMD(option)); 52829088Smarkm else 52929088Smarkm sprintf(nfrontp, "%s %d\r\n", fmt, option); 53029088Smarkm nfrontp += strlen(nfrontp); 53129088Smarkm return; 53229088Smarkm} 53329088Smarkm 53429088Smarkm void 53529088Smarkmprintsub(direction, pointer, length) 53629088Smarkm char direction; /* '<' or '>' */ 53729088Smarkm unsigned char *pointer; /* where suboption data sits */ 53829088Smarkm int length; /* length of suboption data */ 53929088Smarkm{ 54029088Smarkm register int i; 54129088Smarkm char buf[512]; 54229088Smarkm 54329088Smarkm if (!(diagnostic & TD_OPTIONS)) 54429088Smarkm return; 54529088Smarkm 54629088Smarkm if (direction) { 54729088Smarkm sprintf(nfrontp, "td: %s suboption ", 54829088Smarkm direction == '<' ? "recv" : "send"); 54929088Smarkm nfrontp += strlen(nfrontp); 55029088Smarkm if (length >= 3) { 55129088Smarkm register int j; 55229088Smarkm 55329088Smarkm i = pointer[length-2]; 55429088Smarkm j = pointer[length-1]; 55529088Smarkm 55629088Smarkm if (i != IAC || j != SE) { 55729088Smarkm sprintf(nfrontp, "(terminated by "); 55829088Smarkm nfrontp += strlen(nfrontp); 55929088Smarkm if (TELOPT_OK(i)) 56029088Smarkm sprintf(nfrontp, "%s ", TELOPT(i)); 56129088Smarkm else if (TELCMD_OK(i)) 56229088Smarkm sprintf(nfrontp, "%s ", TELCMD(i)); 56329088Smarkm else 56429088Smarkm sprintf(nfrontp, "%d ", i); 56529088Smarkm nfrontp += strlen(nfrontp); 56629088Smarkm if (TELOPT_OK(j)) 56729088Smarkm sprintf(nfrontp, "%s", TELOPT(j)); 56829088Smarkm else if (TELCMD_OK(j)) 56929088Smarkm sprintf(nfrontp, "%s", TELCMD(j)); 57029088Smarkm else 57129088Smarkm sprintf(nfrontp, "%d", j); 57229088Smarkm nfrontp += strlen(nfrontp); 57329088Smarkm sprintf(nfrontp, ", not IAC SE!) "); 57429088Smarkm nfrontp += strlen(nfrontp); 57529088Smarkm } 57629088Smarkm } 57729088Smarkm length -= 2; 57829088Smarkm } 57929088Smarkm if (length < 1) { 58029088Smarkm sprintf(nfrontp, "(Empty suboption??\?)"); 58129088Smarkm nfrontp += strlen(nfrontp); 58229088Smarkm return; 58329088Smarkm } 58429088Smarkm switch (pointer[0]) { 58529088Smarkm case TELOPT_TTYPE: 58629088Smarkm sprintf(nfrontp, "TERMINAL-TYPE "); 58729088Smarkm nfrontp += strlen(nfrontp); 58829088Smarkm switch (pointer[1]) { 58929088Smarkm case TELQUAL_IS: 59029088Smarkm sprintf(nfrontp, "IS \"%.*s\"", length-2, (char *)pointer+2); 59129088Smarkm break; 59229088Smarkm case TELQUAL_SEND: 59329088Smarkm sprintf(nfrontp, "SEND"); 59429088Smarkm break; 59529088Smarkm default: 59629088Smarkm sprintf(nfrontp, 59729088Smarkm "- unknown qualifier %d (0x%x).", 59829088Smarkm pointer[1], pointer[1]); 59929088Smarkm } 60029088Smarkm nfrontp += strlen(nfrontp); 60129088Smarkm break; 60229088Smarkm case TELOPT_TSPEED: 60329088Smarkm sprintf(nfrontp, "TERMINAL-SPEED"); 60429088Smarkm nfrontp += strlen(nfrontp); 60529088Smarkm if (length < 2) { 60629088Smarkm sprintf(nfrontp, " (empty suboption??\?)"); 60729088Smarkm nfrontp += strlen(nfrontp); 60829088Smarkm break; 60929088Smarkm } 61029088Smarkm switch (pointer[1]) { 61129088Smarkm case TELQUAL_IS: 61229088Smarkm sprintf(nfrontp, " IS %.*s", length-2, (char *)pointer+2); 61329088Smarkm nfrontp += strlen(nfrontp); 61429088Smarkm break; 61529088Smarkm default: 61629088Smarkm if (pointer[1] == 1) 61729088Smarkm sprintf(nfrontp, " SEND"); 61829088Smarkm else 61929088Smarkm sprintf(nfrontp, " %d (unknown)", pointer[1]); 62029088Smarkm nfrontp += strlen(nfrontp); 62129088Smarkm for (i = 2; i < length; i++) { 62229088Smarkm sprintf(nfrontp, " ?%d?", pointer[i]); 62329088Smarkm nfrontp += strlen(nfrontp); 62429088Smarkm } 62529088Smarkm break; 62629088Smarkm } 62729088Smarkm break; 62829088Smarkm 62929088Smarkm case TELOPT_LFLOW: 63029088Smarkm sprintf(nfrontp, "TOGGLE-FLOW-CONTROL"); 63129088Smarkm nfrontp += strlen(nfrontp); 63229088Smarkm if (length < 2) { 63329088Smarkm sprintf(nfrontp, " (empty suboption??\?)"); 63429088Smarkm nfrontp += strlen(nfrontp); 63529088Smarkm break; 63629088Smarkm } 63729088Smarkm switch (pointer[1]) { 63829088Smarkm case LFLOW_OFF: 63929088Smarkm sprintf(nfrontp, " OFF"); break; 64029088Smarkm case LFLOW_ON: 64129088Smarkm sprintf(nfrontp, " ON"); break; 64229088Smarkm case LFLOW_RESTART_ANY: 64329088Smarkm sprintf(nfrontp, " RESTART-ANY"); break; 64429088Smarkm case LFLOW_RESTART_XON: 64529088Smarkm sprintf(nfrontp, " RESTART-XON"); break; 64629088Smarkm default: 64729088Smarkm sprintf(nfrontp, " %d (unknown)", pointer[1]); 64829088Smarkm } 64929088Smarkm nfrontp += strlen(nfrontp); 65029088Smarkm for (i = 2; i < length; i++) { 65129088Smarkm sprintf(nfrontp, " ?%d?", pointer[i]); 65229088Smarkm nfrontp += strlen(nfrontp); 65329088Smarkm } 65429088Smarkm break; 65529088Smarkm 65629088Smarkm case TELOPT_NAWS: 65729088Smarkm sprintf(nfrontp, "NAWS"); 65829088Smarkm nfrontp += strlen(nfrontp); 65929088Smarkm if (length < 2) { 66029088Smarkm sprintf(nfrontp, " (empty suboption??\?)"); 66129088Smarkm nfrontp += strlen(nfrontp); 66229088Smarkm break; 66329088Smarkm } 66429088Smarkm if (length == 2) { 66529088Smarkm sprintf(nfrontp, " ?%d?", pointer[1]); 66629088Smarkm nfrontp += strlen(nfrontp); 66729088Smarkm break; 66829088Smarkm } 66929088Smarkm sprintf(nfrontp, " %d %d (%d)", 67029088Smarkm pointer[1], pointer[2], 67129088Smarkm (int)((((unsigned int)pointer[1])<<8)|((unsigned int)pointer[2]))); 67229088Smarkm nfrontp += strlen(nfrontp); 67329088Smarkm if (length == 4) { 67429088Smarkm sprintf(nfrontp, " ?%d?", pointer[3]); 67529088Smarkm nfrontp += strlen(nfrontp); 67629088Smarkm break; 67729088Smarkm } 67829088Smarkm sprintf(nfrontp, " %d %d (%d)", 67929088Smarkm pointer[3], pointer[4], 68029088Smarkm (int)((((unsigned int)pointer[3])<<8)|((unsigned int)pointer[4]))); 68129088Smarkm nfrontp += strlen(nfrontp); 68229088Smarkm for (i = 5; i < length; i++) { 68329088Smarkm sprintf(nfrontp, " ?%d?", pointer[i]); 68429088Smarkm nfrontp += strlen(nfrontp); 68529088Smarkm } 68629088Smarkm break; 68729088Smarkm 68829088Smarkm case TELOPT_LINEMODE: 68929088Smarkm sprintf(nfrontp, "LINEMODE "); 69029088Smarkm nfrontp += strlen(nfrontp); 69129088Smarkm if (length < 2) { 69229088Smarkm sprintf(nfrontp, " (empty suboption??\?)"); 69329088Smarkm nfrontp += strlen(nfrontp); 69429088Smarkm break; 69529088Smarkm } 69629088Smarkm switch (pointer[1]) { 69729088Smarkm case WILL: 69829088Smarkm sprintf(nfrontp, "WILL "); 69929088Smarkm goto common; 70029088Smarkm case WONT: 70129088Smarkm sprintf(nfrontp, "WONT "); 70229088Smarkm goto common; 70329088Smarkm case DO: 70429088Smarkm sprintf(nfrontp, "DO "); 70529088Smarkm goto common; 70629088Smarkm case DONT: 70729088Smarkm sprintf(nfrontp, "DONT "); 70829088Smarkm common: 70929088Smarkm nfrontp += strlen(nfrontp); 71029088Smarkm if (length < 3) { 71129088Smarkm sprintf(nfrontp, "(no option??\?)"); 71229088Smarkm nfrontp += strlen(nfrontp); 71329088Smarkm break; 71429088Smarkm } 71529088Smarkm switch (pointer[2]) { 71629088Smarkm case LM_FORWARDMASK: 71729088Smarkm sprintf(nfrontp, "Forward Mask"); 71829088Smarkm nfrontp += strlen(nfrontp); 71929088Smarkm for (i = 3; i < length; i++) { 72029088Smarkm sprintf(nfrontp, " %x", pointer[i]); 72129088Smarkm nfrontp += strlen(nfrontp); 72229088Smarkm } 72329088Smarkm break; 72429088Smarkm default: 72529088Smarkm sprintf(nfrontp, "%d (unknown)", pointer[2]); 72629088Smarkm nfrontp += strlen(nfrontp); 72729088Smarkm for (i = 3; i < length; i++) { 72829088Smarkm sprintf(nfrontp, " %d", pointer[i]); 72929088Smarkm nfrontp += strlen(nfrontp); 73029088Smarkm } 73129088Smarkm break; 73229088Smarkm } 73329088Smarkm break; 73429088Smarkm 73529088Smarkm case LM_SLC: 73629088Smarkm sprintf(nfrontp, "SLC"); 73729088Smarkm nfrontp += strlen(nfrontp); 73829088Smarkm for (i = 2; i < length - 2; i += 3) { 73929088Smarkm if (SLC_NAME_OK(pointer[i+SLC_FUNC])) 74029088Smarkm sprintf(nfrontp, " %s", SLC_NAME(pointer[i+SLC_FUNC])); 74129088Smarkm else 74229088Smarkm sprintf(nfrontp, " %d", pointer[i+SLC_FUNC]); 74329088Smarkm nfrontp += strlen(nfrontp); 74429088Smarkm switch (pointer[i+SLC_FLAGS]&SLC_LEVELBITS) { 74529088Smarkm case SLC_NOSUPPORT: 74629088Smarkm sprintf(nfrontp, " NOSUPPORT"); break; 74729088Smarkm case SLC_CANTCHANGE: 74829088Smarkm sprintf(nfrontp, " CANTCHANGE"); break; 74929088Smarkm case SLC_VARIABLE: 75029088Smarkm sprintf(nfrontp, " VARIABLE"); break; 75129088Smarkm case SLC_DEFAULT: 75229088Smarkm sprintf(nfrontp, " DEFAULT"); break; 75329088Smarkm } 75429088Smarkm nfrontp += strlen(nfrontp); 75529088Smarkm sprintf(nfrontp, "%s%s%s", 75629088Smarkm pointer[i+SLC_FLAGS]&SLC_ACK ? "|ACK" : "", 75729088Smarkm pointer[i+SLC_FLAGS]&SLC_FLUSHIN ? "|FLUSHIN" : "", 75829088Smarkm pointer[i+SLC_FLAGS]&SLC_FLUSHOUT ? "|FLUSHOUT" : ""); 75929088Smarkm nfrontp += strlen(nfrontp); 76029088Smarkm if (pointer[i+SLC_FLAGS]& ~(SLC_ACK|SLC_FLUSHIN| 76129088Smarkm SLC_FLUSHOUT| SLC_LEVELBITS)) { 76229088Smarkm sprintf(nfrontp, "(0x%x)", pointer[i+SLC_FLAGS]); 76329088Smarkm nfrontp += strlen(nfrontp); 76429088Smarkm } 76529088Smarkm sprintf(nfrontp, " %d;", pointer[i+SLC_VALUE]); 76629088Smarkm nfrontp += strlen(nfrontp); 76729088Smarkm if ((pointer[i+SLC_VALUE] == IAC) && 76829088Smarkm (pointer[i+SLC_VALUE+1] == IAC)) 76929088Smarkm i++; 77029088Smarkm } 77129088Smarkm for (; i < length; i++) { 77229088Smarkm sprintf(nfrontp, " ?%d?", pointer[i]); 77329088Smarkm nfrontp += strlen(nfrontp); 77429088Smarkm } 77529088Smarkm break; 77629088Smarkm 77729088Smarkm case LM_MODE: 77829088Smarkm sprintf(nfrontp, "MODE "); 77929088Smarkm nfrontp += strlen(nfrontp); 78029088Smarkm if (length < 3) { 78129088Smarkm sprintf(nfrontp, "(no mode??\?)"); 78229088Smarkm nfrontp += strlen(nfrontp); 78329088Smarkm break; 78429088Smarkm } 78529088Smarkm { 78629088Smarkm char tbuf[32]; 78729088Smarkm sprintf(tbuf, "%s%s%s%s%s", 78829088Smarkm pointer[2]&MODE_EDIT ? "|EDIT" : "", 78929088Smarkm pointer[2]&MODE_TRAPSIG ? "|TRAPSIG" : "", 79029088Smarkm pointer[2]&MODE_SOFT_TAB ? "|SOFT_TAB" : "", 79129088Smarkm pointer[2]&MODE_LIT_ECHO ? "|LIT_ECHO" : "", 79229088Smarkm pointer[2]&MODE_ACK ? "|ACK" : ""); 79329088Smarkm sprintf(nfrontp, "%s", tbuf[1] ? &tbuf[1] : "0"); 79429088Smarkm nfrontp += strlen(nfrontp); 79529088Smarkm } 79629088Smarkm if (pointer[2]&~(MODE_EDIT|MODE_TRAPSIG|MODE_ACK)) { 79729088Smarkm sprintf(nfrontp, " (0x%x)", pointer[2]); 79829088Smarkm nfrontp += strlen(nfrontp); 79929088Smarkm } 80029088Smarkm for (i = 3; i < length; i++) { 80129088Smarkm sprintf(nfrontp, " ?0x%x?", pointer[i]); 80229088Smarkm nfrontp += strlen(nfrontp); 80329088Smarkm } 80429088Smarkm break; 80529088Smarkm default: 80629088Smarkm sprintf(nfrontp, "%d (unknown)", pointer[1]); 80729088Smarkm nfrontp += strlen(nfrontp); 80829088Smarkm for (i = 2; i < length; i++) { 80929088Smarkm sprintf(nfrontp, " %d", pointer[i]); 81029088Smarkm nfrontp += strlen(nfrontp); 81129088Smarkm } 81229088Smarkm } 81329088Smarkm break; 81429088Smarkm 81529088Smarkm case TELOPT_STATUS: { 81629088Smarkm register char *cp; 81729088Smarkm register int j, k; 81829088Smarkm 81929088Smarkm sprintf(nfrontp, "STATUS"); 82029088Smarkm nfrontp += strlen(nfrontp); 82129088Smarkm 82229088Smarkm switch (pointer[1]) { 82329088Smarkm default: 82429088Smarkm if (pointer[1] == TELQUAL_SEND) 82529088Smarkm sprintf(nfrontp, " SEND"); 82629088Smarkm else 82729088Smarkm sprintf(nfrontp, " %d (unknown)", pointer[1]); 82829088Smarkm nfrontp += strlen(nfrontp); 82929088Smarkm for (i = 2; i < length; i++) { 83029088Smarkm sprintf(nfrontp, " ?%d?", pointer[i]); 83129088Smarkm nfrontp += strlen(nfrontp); 83229088Smarkm } 83329088Smarkm break; 83429088Smarkm case TELQUAL_IS: 83529088Smarkm sprintf(nfrontp, " IS\r\n"); 83629088Smarkm nfrontp += strlen(nfrontp); 83729088Smarkm 83829088Smarkm for (i = 2; i < length; i++) { 83929088Smarkm switch(pointer[i]) { 84029088Smarkm case DO: cp = "DO"; goto common2; 84129088Smarkm case DONT: cp = "DONT"; goto common2; 84229088Smarkm case WILL: cp = "WILL"; goto common2; 84329088Smarkm case WONT: cp = "WONT"; goto common2; 84429088Smarkm common2: 84529088Smarkm i++; 84629088Smarkm if (TELOPT_OK(pointer[i])) 84729088Smarkm sprintf(nfrontp, " %s %s", cp, TELOPT(pointer[i])); 84829088Smarkm else 84929088Smarkm sprintf(nfrontp, " %s %d", cp, pointer[i]); 85029088Smarkm nfrontp += strlen(nfrontp); 85129088Smarkm 85229088Smarkm sprintf(nfrontp, "\r\n"); 85329088Smarkm nfrontp += strlen(nfrontp); 85429088Smarkm break; 85529088Smarkm 85629088Smarkm case SB: 85729088Smarkm sprintf(nfrontp, " SB "); 85829088Smarkm nfrontp += strlen(nfrontp); 85929088Smarkm i++; 86029088Smarkm j = k = i; 86129088Smarkm while (j < length) { 86229088Smarkm if (pointer[j] == SE) { 86329088Smarkm if (j+1 == length) 86429088Smarkm break; 86529088Smarkm if (pointer[j+1] == SE) 86629088Smarkm j++; 86729088Smarkm else 86829088Smarkm break; 86929088Smarkm } 87029088Smarkm pointer[k++] = pointer[j++]; 87129088Smarkm } 87229088Smarkm printsub(0, &pointer[i], k - i); 87329088Smarkm if (i < length) { 87429088Smarkm sprintf(nfrontp, " SE"); 87529088Smarkm nfrontp += strlen(nfrontp); 87629088Smarkm i = j; 87729088Smarkm } else 87829088Smarkm i = j - 1; 87929088Smarkm 88029088Smarkm sprintf(nfrontp, "\r\n"); 88129088Smarkm nfrontp += strlen(nfrontp); 88229088Smarkm 88329088Smarkm break; 88429088Smarkm 88529088Smarkm default: 88629088Smarkm sprintf(nfrontp, " %d", pointer[i]); 88729088Smarkm nfrontp += strlen(nfrontp); 88829088Smarkm break; 88929088Smarkm } 89029088Smarkm } 89129088Smarkm break; 89229088Smarkm } 89329088Smarkm break; 89429088Smarkm } 89529088Smarkm 89629088Smarkm case TELOPT_XDISPLOC: 89729088Smarkm sprintf(nfrontp, "X-DISPLAY-LOCATION "); 89829088Smarkm nfrontp += strlen(nfrontp); 89929088Smarkm switch (pointer[1]) { 90029088Smarkm case TELQUAL_IS: 90129088Smarkm sprintf(nfrontp, "IS \"%.*s\"", length-2, (char *)pointer+2); 90229088Smarkm break; 90329088Smarkm case TELQUAL_SEND: 90429088Smarkm sprintf(nfrontp, "SEND"); 90529088Smarkm break; 90629088Smarkm default: 90729088Smarkm sprintf(nfrontp, "- unknown qualifier %d (0x%x).", 90829088Smarkm pointer[1], pointer[1]); 90929088Smarkm } 91029088Smarkm nfrontp += strlen(nfrontp); 91129088Smarkm break; 91229088Smarkm 91329088Smarkm case TELOPT_NEW_ENVIRON: 91429088Smarkm sprintf(nfrontp, "NEW-ENVIRON "); 91529088Smarkm goto env_common1; 91629088Smarkm case TELOPT_OLD_ENVIRON: 91729088Smarkm sprintf(nfrontp, "OLD-ENVIRON"); 91829088Smarkm env_common1: 91929088Smarkm nfrontp += strlen(nfrontp); 92029088Smarkm switch (pointer[1]) { 92129088Smarkm case TELQUAL_IS: 92229088Smarkm sprintf(nfrontp, "IS "); 92329088Smarkm goto env_common; 92429088Smarkm case TELQUAL_SEND: 92529088Smarkm sprintf(nfrontp, "SEND "); 92629088Smarkm goto env_common; 92729088Smarkm case TELQUAL_INFO: 92829088Smarkm sprintf(nfrontp, "INFO "); 92929088Smarkm env_common: 93029088Smarkm nfrontp += strlen(nfrontp); 93129088Smarkm { 93229088Smarkm register int noquote = 2; 93329088Smarkm for (i = 2; i < length; i++ ) { 93429088Smarkm switch (pointer[i]) { 93529088Smarkm case NEW_ENV_VAR: 93629088Smarkm sprintf(nfrontp, "\" VAR " + noquote); 93729088Smarkm nfrontp += strlen(nfrontp); 93829088Smarkm noquote = 2; 93929088Smarkm break; 94029088Smarkm 94129088Smarkm case NEW_ENV_VALUE: 94229088Smarkm sprintf(nfrontp, "\" VALUE " + noquote); 94329088Smarkm nfrontp += strlen(nfrontp); 94429088Smarkm noquote = 2; 94529088Smarkm break; 94629088Smarkm 94729088Smarkm case ENV_ESC: 94829088Smarkm sprintf(nfrontp, "\" ESC " + noquote); 94929088Smarkm nfrontp += strlen(nfrontp); 95029088Smarkm noquote = 2; 95129088Smarkm break; 95229088Smarkm 95329088Smarkm case ENV_USERVAR: 95429088Smarkm sprintf(nfrontp, "\" USERVAR " + noquote); 95529088Smarkm nfrontp += strlen(nfrontp); 95629088Smarkm noquote = 2; 95729088Smarkm break; 95829088Smarkm 95929088Smarkm default: 96029088Smarkm if (isprint(pointer[i]) && pointer[i] != '"') { 96129088Smarkm if (noquote) { 96229088Smarkm *nfrontp++ = '"'; 96329088Smarkm noquote = 0; 96429088Smarkm } 96529088Smarkm *nfrontp++ = pointer[i]; 96629088Smarkm } else { 96729088Smarkm sprintf(nfrontp, "\" %03o " + noquote, 96829088Smarkm pointer[i]); 96929088Smarkm nfrontp += strlen(nfrontp); 97029088Smarkm noquote = 2; 97129088Smarkm } 97229088Smarkm break; 97329088Smarkm } 97429088Smarkm } 97529088Smarkm if (!noquote) 97629088Smarkm *nfrontp++ = '"'; 97729088Smarkm break; 97829088Smarkm } 97929088Smarkm } 98029088Smarkm break; 98129088Smarkm 98229088Smarkm#if defined(AUTHENTICATION) 98329088Smarkm case TELOPT_AUTHENTICATION: 98429088Smarkm sprintf(nfrontp, "AUTHENTICATION"); 98529088Smarkm nfrontp += strlen(nfrontp); 98629088Smarkm 98729088Smarkm if (length < 2) { 98829088Smarkm sprintf(nfrontp, " (empty suboption??\?)"); 98929088Smarkm nfrontp += strlen(nfrontp); 99029088Smarkm break; 99129088Smarkm } 99229088Smarkm switch (pointer[1]) { 99329088Smarkm case TELQUAL_REPLY: 99429088Smarkm case TELQUAL_IS: 99529088Smarkm sprintf(nfrontp, " %s ", (pointer[1] == TELQUAL_IS) ? 99629088Smarkm "IS" : "REPLY"); 99729088Smarkm nfrontp += strlen(nfrontp); 99829088Smarkm if (AUTHTYPE_NAME_OK(pointer[2])) 99929088Smarkm sprintf(nfrontp, "%s ", AUTHTYPE_NAME(pointer[2])); 100029088Smarkm else 100129088Smarkm sprintf(nfrontp, "%d ", pointer[2]); 100229088Smarkm nfrontp += strlen(nfrontp); 100329088Smarkm if (length < 3) { 100429088Smarkm sprintf(nfrontp, "(partial suboption??\?)"); 100529088Smarkm nfrontp += strlen(nfrontp); 100629088Smarkm break; 100729088Smarkm } 100829088Smarkm sprintf(nfrontp, "%s|%s", 100929088Smarkm ((pointer[3] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? 101029088Smarkm "CLIENT" : "SERVER", 101129088Smarkm ((pointer[3] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? 101229088Smarkm "MUTUAL" : "ONE-WAY"); 101329088Smarkm nfrontp += strlen(nfrontp); 101429088Smarkm 101529088Smarkm auth_printsub(&pointer[1], length - 1, buf, sizeof(buf)); 101629088Smarkm sprintf(nfrontp, "%s", buf); 101729088Smarkm nfrontp += strlen(nfrontp); 101829088Smarkm break; 101929088Smarkm 102029088Smarkm case TELQUAL_SEND: 102129088Smarkm i = 2; 102229088Smarkm sprintf(nfrontp, " SEND "); 102329088Smarkm nfrontp += strlen(nfrontp); 102429088Smarkm while (i < length) { 102529088Smarkm if (AUTHTYPE_NAME_OK(pointer[i])) 102629088Smarkm sprintf(nfrontp, "%s ", AUTHTYPE_NAME(pointer[i])); 102729088Smarkm else 102829088Smarkm sprintf(nfrontp, "%d ", pointer[i]); 102929088Smarkm nfrontp += strlen(nfrontp); 103029088Smarkm if (++i >= length) { 103129088Smarkm sprintf(nfrontp, "(partial suboption??\?)"); 103229088Smarkm nfrontp += strlen(nfrontp); 103329088Smarkm break; 103429088Smarkm } 103529088Smarkm sprintf(nfrontp, "%s|%s ", 103629088Smarkm ((pointer[i] & AUTH_WHO_MASK) == AUTH_WHO_CLIENT) ? 103729088Smarkm "CLIENT" : "SERVER", 103829088Smarkm ((pointer[i] & AUTH_HOW_MASK) == AUTH_HOW_MUTUAL) ? 103929088Smarkm "MUTUAL" : "ONE-WAY"); 104029088Smarkm nfrontp += strlen(nfrontp); 104129088Smarkm ++i; 104229088Smarkm } 104329088Smarkm break; 104429088Smarkm 104529088Smarkm case TELQUAL_NAME: 104629088Smarkm i = 2; 104729088Smarkm sprintf(nfrontp, " NAME \""); 104829088Smarkm nfrontp += strlen(nfrontp); 104929088Smarkm while (i < length) 105029088Smarkm *nfrontp += pointer[i++]; 105129088Smarkm *nfrontp += '"'; 105229088Smarkm break; 105329088Smarkm 105429088Smarkm default: 105529088Smarkm for (i = 2; i < length; i++) { 105629088Smarkm sprintf(nfrontp, " ?%d?", pointer[i]); 105729088Smarkm nfrontp += strlen(nfrontp); 105829088Smarkm } 105929088Smarkm break; 106029088Smarkm } 106129088Smarkm break; 106229088Smarkm#endif 106329088Smarkm 106429088Smarkm#ifdef ENCRYPTION 106529088Smarkm case TELOPT_ENCRYPT: 106629088Smarkm sprintf(nfrontp, "ENCRYPT"); 106729088Smarkm nfrontp += strlen(nfrontp); 106829088Smarkm if (length < 2) { 106929088Smarkm sprintf(nfrontp, " (empty suboption??\?)"); 107029088Smarkm nfrontp += strlen(nfrontp); 107129088Smarkm break; 107229088Smarkm } 107329088Smarkm switch (pointer[1]) { 107429088Smarkm case ENCRYPT_START: 107529088Smarkm sprintf(nfrontp, " START"); 107629088Smarkm nfrontp += strlen(nfrontp); 107729088Smarkm break; 107829088Smarkm 107929088Smarkm case ENCRYPT_END: 108029088Smarkm sprintf(nfrontp, " END"); 108129088Smarkm nfrontp += strlen(nfrontp); 108229088Smarkm break; 108329088Smarkm 108429088Smarkm case ENCRYPT_REQSTART: 108529088Smarkm sprintf(nfrontp, " REQUEST-START"); 108629088Smarkm nfrontp += strlen(nfrontp); 108729088Smarkm break; 108829088Smarkm 108929088Smarkm case ENCRYPT_REQEND: 109029088Smarkm sprintf(nfrontp, " REQUEST-END"); 109129088Smarkm nfrontp += strlen(nfrontp); 109229088Smarkm break; 109329088Smarkm 109429088Smarkm case ENCRYPT_IS: 109529088Smarkm case ENCRYPT_REPLY: 109629088Smarkm sprintf(nfrontp, " %s ", (pointer[1] == ENCRYPT_IS) ? 109729088Smarkm "IS" : "REPLY"); 109829088Smarkm nfrontp += strlen(nfrontp); 109929088Smarkm if (length < 3) { 110029088Smarkm sprintf(nfrontp, " (partial suboption??\?)"); 110129088Smarkm nfrontp += strlen(nfrontp); 110229088Smarkm break; 110329088Smarkm } 110429088Smarkm if (ENCTYPE_NAME_OK(pointer[2])) 110529088Smarkm sprintf(nfrontp, "%s ", ENCTYPE_NAME(pointer[2])); 110629088Smarkm else 110729088Smarkm sprintf(nfrontp, " %d (unknown)", pointer[2]); 110829088Smarkm nfrontp += strlen(nfrontp); 110929088Smarkm 111029088Smarkm encrypt_printsub(&pointer[1], length - 1, buf, sizeof(buf)); 111129088Smarkm sprintf(nfrontp, "%s", buf); 111229088Smarkm nfrontp += strlen(nfrontp); 111329088Smarkm break; 111429088Smarkm 111529088Smarkm case ENCRYPT_SUPPORT: 111629088Smarkm i = 2; 111729088Smarkm sprintf(nfrontp, " SUPPORT "); 111829088Smarkm nfrontp += strlen(nfrontp); 111929088Smarkm while (i < length) { 112029088Smarkm if (ENCTYPE_NAME_OK(pointer[i])) 112129088Smarkm sprintf(nfrontp, "%s ", ENCTYPE_NAME(pointer[i])); 112229088Smarkm else 112329088Smarkm sprintf(nfrontp, "%d ", pointer[i]); 112429088Smarkm nfrontp += strlen(nfrontp); 112529088Smarkm i++; 112629088Smarkm } 112729088Smarkm break; 112829088Smarkm 112929088Smarkm case ENCRYPT_ENC_KEYID: 113029181Smarkm sprintf(nfrontp, " ENC_KEYID"); 113129088Smarkm nfrontp += strlen(nfrontp); 113229088Smarkm goto encommon; 113329088Smarkm 113429088Smarkm case ENCRYPT_DEC_KEYID: 113529181Smarkm sprintf(nfrontp, " DEC_KEYID"); 113629088Smarkm nfrontp += strlen(nfrontp); 113729088Smarkm goto encommon; 113829088Smarkm 113929088Smarkm default: 114029088Smarkm sprintf(nfrontp, " %d (unknown)", pointer[1]); 114129088Smarkm nfrontp += strlen(nfrontp); 114229088Smarkm encommon: 114329088Smarkm for (i = 2; i < length; i++) { 114429088Smarkm sprintf(nfrontp, " %d", pointer[i]); 114529088Smarkm nfrontp += strlen(nfrontp); 114629088Smarkm } 114729088Smarkm break; 114829088Smarkm } 114929088Smarkm break; 115029088Smarkm#endif /* ENCRYPTION */ 115129088Smarkm 115229088Smarkm default: 115329088Smarkm if (TELOPT_OK(pointer[0])) 115429088Smarkm sprintf(nfrontp, "%s (unknown)", TELOPT(pointer[0])); 115529088Smarkm else 115629088Smarkm sprintf(nfrontp, "%d (unknown)", pointer[i]); 115729088Smarkm nfrontp += strlen(nfrontp); 115829088Smarkm for (i = 1; i < length; i++) { 115929088Smarkm sprintf(nfrontp, " %d", pointer[i]); 116029088Smarkm nfrontp += strlen(nfrontp); 116129088Smarkm } 116229088Smarkm break; 116329088Smarkm } 116429088Smarkm sprintf(nfrontp, "\r\n"); 116529088Smarkm nfrontp += strlen(nfrontp); 116629088Smarkm} 116729088Smarkm 116829088Smarkm/* 116929088Smarkm * Dump a data buffer in hex and ascii to the output data stream. 117029088Smarkm */ 117129088Smarkm void 117229088Smarkmprintdata(tag, ptr, cnt) 117329088Smarkm register char *tag; 117429088Smarkm register char *ptr; 117529088Smarkm register int cnt; 117629088Smarkm{ 117729088Smarkm register int i; 117829088Smarkm char xbuf[30]; 117929088Smarkm 118029088Smarkm while (cnt) { 118129088Smarkm /* flush net output buffer if no room for new data) */ 118229088Smarkm if ((&netobuf[BUFSIZ] - nfrontp) < 80) { 118329088Smarkm netflush(); 118429088Smarkm } 118529088Smarkm 118629088Smarkm /* add a line of output */ 118729088Smarkm sprintf(nfrontp, "%s: ", tag); 118829088Smarkm nfrontp += strlen(nfrontp); 118929088Smarkm for (i = 0; i < 20 && cnt; i++) { 119029088Smarkm sprintf(nfrontp, "%02x", *ptr); 119129088Smarkm nfrontp += strlen(nfrontp); 119229088Smarkm if (isprint(*ptr)) { 119329088Smarkm xbuf[i] = *ptr; 119429088Smarkm } else { 119529088Smarkm xbuf[i] = '.'; 119629088Smarkm } 119729088Smarkm if (i % 2) { 119829088Smarkm *nfrontp = ' '; 119929088Smarkm nfrontp++; 120029088Smarkm } 120129088Smarkm cnt--; 120229088Smarkm ptr++; 120329088Smarkm } 120429088Smarkm xbuf[i] = '\0'; 120529088Smarkm sprintf(nfrontp, " %s\r\n", xbuf ); 120629088Smarkm nfrontp += strlen(nfrontp); 120729088Smarkm } 120829088Smarkm} 120929088Smarkm#endif /* DIAGNOSTICS */ 1210