157416Smarkm/* 257416Smarkm * Copyright (c) 1988, 1990, 1993 357416Smarkm * The Regents of the University of California. All rights reserved. 457416Smarkm * 557416Smarkm * Redistribution and use in source and binary forms, with or without 657416Smarkm * modification, are permitted provided that the following conditions 757416Smarkm * are met: 857416Smarkm * 1. Redistributions of source code must retain the above copyright 957416Smarkm * notice, this list of conditions and the following disclaimer. 1057416Smarkm * 2. Redistributions in binary form must reproduce the above copyright 1157416Smarkm * notice, this list of conditions and the following disclaimer in the 1257416Smarkm * documentation and/or other materials provided with the distribution. 1357416Smarkm * 3. All advertising materials mentioning features or use of this software 1457416Smarkm * must display the following acknowledgement: 1557416Smarkm * This product includes software developed by the University of 1657416Smarkm * California, Berkeley and its contributors. 1757416Smarkm * 4. Neither the name of the University nor the names of its contributors 1857416Smarkm * may be used to endorse or promote products derived from this software 1957416Smarkm * without specific prior written permission. 2057416Smarkm * 2157416Smarkm * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2257416Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2357416Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2457416Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2557416Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2657416Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2757416Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2857416Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2957416Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 3057416Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3157416Smarkm * SUCH DAMAGE. 3257416Smarkm */ 3357416Smarkm 3457416Smarkm#include "telnet_locl.h" 3557416Smarkm 36178825SdfrRCSID("$Id: commands.c 16224 2005-10-22 17:17:44Z lha $"); 3757416Smarkm 3857416Smarkm#if defined(IPPROTO_IP) && defined(IP_TOS) 3957416Smarkmint tos = -1; 4057416Smarkm#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ 4157416Smarkm 4257416Smarkmchar *hostname; 4357416Smarkmstatic char _hostname[MaxHostNameLen]; 4457416Smarkm 4557416Smarkmtypedef int (*intrtn_t)(int, char**); 4657416Smarkmstatic int call(intrtn_t, ...); 4757416Smarkm 4857416Smarkmtypedef struct { 4957416Smarkm char *name; /* command name */ 5057416Smarkm char *help; /* help string (NULL for no help) */ 5157416Smarkm int (*handler)(); /* routine which executes command */ 5257416Smarkm int needconnect; /* Do we need to be connected to execute? */ 5357416Smarkm} Command; 5457416Smarkm 5557416Smarkmstatic char line[256]; 5657416Smarkmstatic char saveline[256]; 5757416Smarkmstatic int margc; 5857416Smarkmstatic char *margv[20]; 5957416Smarkm 6057416Smarkmstatic void 6157416Smarkmmakeargv() 6257416Smarkm{ 6357416Smarkm char *cp, *cp2, c; 6457416Smarkm char **argp = margv; 6557416Smarkm 6657416Smarkm margc = 0; 6757416Smarkm cp = line; 6857416Smarkm if (*cp == '!') { /* Special case shell escape */ 6957416Smarkm /* save for shell command */ 7057416Smarkm strlcpy(saveline, line, sizeof(saveline)); 7157416Smarkm *argp++ = "!"; /* No room in string to get this */ 7257416Smarkm margc++; 7357416Smarkm cp++; 7457416Smarkm } 7557416Smarkm while ((c = *cp)) { 7657416Smarkm int inquote = 0; 77178825Sdfr while (isspace((unsigned char)c)) 7857416Smarkm c = *++cp; 7957416Smarkm if (c == '\0') 8057416Smarkm break; 8157416Smarkm *argp++ = cp; 8257416Smarkm margc += 1; 8357416Smarkm for (cp2 = cp; c != '\0'; c = *++cp) { 8457416Smarkm if (inquote) { 8557416Smarkm if (c == inquote) { 8657416Smarkm inquote = 0; 8757416Smarkm continue; 8857416Smarkm } 8957416Smarkm } else { 9057416Smarkm if (c == '\\') { 9157416Smarkm if ((c = *++cp) == '\0') 9257416Smarkm break; 9357416Smarkm } else if (c == '"') { 9457416Smarkm inquote = '"'; 9557416Smarkm continue; 9657416Smarkm } else if (c == '\'') { 9757416Smarkm inquote = '\''; 9857416Smarkm continue; 99178825Sdfr } else if (isspace((unsigned char)c)) 10057416Smarkm break; 10157416Smarkm } 10257416Smarkm *cp2++ = c; 10357416Smarkm } 10457416Smarkm *cp2 = '\0'; 10557416Smarkm if (c == '\0') 10657416Smarkm break; 10757416Smarkm cp++; 10857416Smarkm } 10957416Smarkm *argp++ = 0; 11057416Smarkm} 11157416Smarkm 11257416Smarkm/* 11357416Smarkm * Make a character string into a number. 11457416Smarkm * 11557416Smarkm * Todo: 1. Could take random integers (12, 0x12, 012, 0b1). 11657416Smarkm */ 11757416Smarkm 11857416Smarkmstatic char 11957416Smarkmspecial(char *s) 12057416Smarkm{ 12157416Smarkm char c; 12257416Smarkm char b; 12357416Smarkm 12457416Smarkm switch (*s) { 12557416Smarkm case '^': 12657416Smarkm b = *++s; 12757416Smarkm if (b == '?') { 12857416Smarkm c = b | 0x40; /* DEL */ 12957416Smarkm } else { 13057416Smarkm c = b & 0x1f; 13157416Smarkm } 13257416Smarkm break; 13357416Smarkm default: 13457416Smarkm c = *s; 13557416Smarkm break; 13657416Smarkm } 13757416Smarkm return c; 13857416Smarkm} 13957416Smarkm 14057416Smarkm/* 14157416Smarkm * Construct a control character sequence 14257416Smarkm * for a special character. 14357416Smarkm */ 14457416Smarkmstatic char * 14557416Smarkmcontrol(cc_t c) 14657416Smarkm{ 14757416Smarkm static char buf[5]; 14857416Smarkm /* 14957416Smarkm * The only way I could get the Sun 3.5 compiler 15057416Smarkm * to shut up about 15157416Smarkm * if ((unsigned int)c >= 0x80) 15257416Smarkm * was to assign "c" to an unsigned int variable... 15357416Smarkm * Arggg.... 15457416Smarkm */ 15557416Smarkm unsigned int uic = (unsigned int)c; 15657416Smarkm 15757416Smarkm if (uic == 0x7f) 15857416Smarkm return ("^?"); 15957416Smarkm if (c == (cc_t)_POSIX_VDISABLE) { 16057416Smarkm return "off"; 16157416Smarkm } 16257416Smarkm if (uic >= 0x80) { 16357416Smarkm buf[0] = '\\'; 16457416Smarkm buf[1] = ((c>>6)&07) + '0'; 16557416Smarkm buf[2] = ((c>>3)&07) + '0'; 16657416Smarkm buf[3] = (c&07) + '0'; 16757416Smarkm buf[4] = 0; 16857416Smarkm } else if (uic >= 0x20) { 16957416Smarkm buf[0] = c; 17057416Smarkm buf[1] = 0; 17157416Smarkm } else { 17257416Smarkm buf[0] = '^'; 17357416Smarkm buf[1] = '@'+c; 17457416Smarkm buf[2] = 0; 17557416Smarkm } 17657416Smarkm return (buf); 17757416Smarkm} 17857416Smarkm 17957416Smarkm 18057416Smarkm 18157416Smarkm/* 18257416Smarkm * The following are data structures and routines for 18357416Smarkm * the "send" command. 18457416Smarkm * 18557416Smarkm */ 18657416Smarkm 18757416Smarkmstruct sendlist { 18857416Smarkm char *name; /* How user refers to it (case independent) */ 18957416Smarkm char *help; /* Help information (0 ==> no help) */ 19057416Smarkm int needconnect; /* Need to be connected */ 19157416Smarkm int narg; /* Number of arguments */ 19257416Smarkm int (*handler)(); /* Routine to perform (for special ops) */ 19357416Smarkm int nbyte; /* Number of bytes to send this command */ 19457416Smarkm int what; /* Character to be sent (<0 ==> special) */ 19557416Smarkm}; 19657416Smarkm 19757416Smarkm 19857416Smarkmstatic int 19957416Smarkm send_esc (void), 20057416Smarkm send_help (void), 20157416Smarkm send_docmd (char *), 20257416Smarkm send_dontcmd (char *), 20357416Smarkm send_willcmd (char *), 20457416Smarkm send_wontcmd (char *); 20557416Smarkm 20657416Smarkmstatic struct sendlist Sendlist[] = { 20757416Smarkm { "ao", "Send Telnet Abort output", 1, 0, 0, 2, AO }, 20857416Smarkm { "ayt", "Send Telnet 'Are You There'", 1, 0, 0, 2, AYT }, 20957416Smarkm { "brk", "Send Telnet Break", 1, 0, 0, 2, BREAK }, 21057416Smarkm { "break", 0, 1, 0, 0, 2, BREAK }, 21157416Smarkm { "ec", "Send Telnet Erase Character", 1, 0, 0, 2, EC }, 21257416Smarkm { "el", "Send Telnet Erase Line", 1, 0, 0, 2, EL }, 21357416Smarkm { "escape", "Send current escape character", 1, 0, send_esc, 1, 0 }, 21457416Smarkm { "ga", "Send Telnet 'Go Ahead' sequence", 1, 0, 0, 2, GA }, 21557416Smarkm { "ip", "Send Telnet Interrupt Process", 1, 0, 0, 2, IP }, 21657416Smarkm { "intp", 0, 1, 0, 0, 2, IP }, 21757416Smarkm { "interrupt", 0, 1, 0, 0, 2, IP }, 21857416Smarkm { "intr", 0, 1, 0, 0, 2, IP }, 21957416Smarkm { "nop", "Send Telnet 'No operation'", 1, 0, 0, 2, NOP }, 22057416Smarkm { "eor", "Send Telnet 'End of Record'", 1, 0, 0, 2, EOR }, 22157416Smarkm { "abort", "Send Telnet 'Abort Process'", 1, 0, 0, 2, ABORT }, 22257416Smarkm { "susp", "Send Telnet 'Suspend Process'", 1, 0, 0, 2, SUSP }, 22357416Smarkm { "eof", "Send Telnet End of File Character", 1, 0, 0, 2, xEOF }, 22457416Smarkm { "synch", "Perform Telnet 'Synch operation'", 1, 0, dosynch, 2, 0 }, 22557416Smarkm { "getstatus", "Send request for STATUS", 1, 0, get_status, 6, 0 }, 22657416Smarkm { "?", "Display send options", 0, 0, send_help, 0, 0 }, 22757416Smarkm { "help", 0, 0, 0, send_help, 0, 0 }, 22857416Smarkm { "do", 0, 0, 1, send_docmd, 3, 0 }, 22957416Smarkm { "dont", 0, 0, 1, send_dontcmd, 3, 0 }, 23057416Smarkm { "will", 0, 0, 1, send_willcmd, 3, 0 }, 23157416Smarkm { "wont", 0, 0, 1, send_wontcmd, 3, 0 }, 23257416Smarkm { 0 } 23357416Smarkm}; 23457416Smarkm 23557416Smarkm#define GETSEND(name) ((struct sendlist *) genget(name, (char **) Sendlist, \ 23657416Smarkm sizeof(struct sendlist))) 23757416Smarkm 23857416Smarkmstatic int 23957416Smarkmsendcmd(int argc, char **argv) 24057416Smarkm{ 24157416Smarkm int count; /* how many bytes we are going to need to send */ 24257416Smarkm int i; 24357416Smarkm struct sendlist *s; /* pointer to current command */ 24457416Smarkm int success = 0; 24557416Smarkm int needconnect = 0; 24657416Smarkm 24757416Smarkm if (argc < 2) { 24857416Smarkm printf("need at least one argument for 'send' command\r\n"); 24957416Smarkm printf("'send ?' for help\r\n"); 25057416Smarkm return 0; 25157416Smarkm } 25257416Smarkm /* 25357416Smarkm * First, validate all the send arguments. 25457416Smarkm * In addition, we see how much space we are going to need, and 25557416Smarkm * whether or not we will be doing a "SYNCH" operation (which 25657416Smarkm * flushes the network queue). 25757416Smarkm */ 25857416Smarkm count = 0; 25957416Smarkm for (i = 1; i < argc; i++) { 26057416Smarkm s = GETSEND(argv[i]); 26157416Smarkm if (s == 0) { 26257416Smarkm printf("Unknown send argument '%s'\r\n'send ?' for help.\r\n", 26357416Smarkm argv[i]); 26457416Smarkm return 0; 26557416Smarkm } else if (Ambiguous(s)) { 26657416Smarkm printf("Ambiguous send argument '%s'\r\n'send ?' for help.\r\n", 26757416Smarkm argv[i]); 26857416Smarkm return 0; 26957416Smarkm } 27057416Smarkm if (i + s->narg >= argc) { 27157416Smarkm fprintf(stderr, 27257416Smarkm "Need %d argument%s to 'send %s' command. 'send %s ?' for help.\r\n", 27357416Smarkm s->narg, s->narg == 1 ? "" : "s", s->name, s->name); 27457416Smarkm return 0; 27557416Smarkm } 27657416Smarkm count += s->nbyte; 27757416Smarkm if (s->handler == send_help) { 27857416Smarkm send_help(); 27957416Smarkm return 0; 28057416Smarkm } 28157416Smarkm 28257416Smarkm i += s->narg; 28357416Smarkm needconnect += s->needconnect; 28457416Smarkm } 28557416Smarkm if (!connected && needconnect) { 28657416Smarkm printf("?Need to be connected first.\r\n"); 28757416Smarkm printf("'send ?' for help\r\n"); 28857416Smarkm return 0; 28957416Smarkm } 29057416Smarkm /* Now, do we have enough room? */ 29157416Smarkm if (NETROOM() < count) { 29257416Smarkm printf("There is not enough room in the buffer TO the network\r\n"); 29357416Smarkm printf("to process your request. Nothing will be done.\r\n"); 29457416Smarkm printf("('send synch' will throw away most data in the network\r\n"); 29557416Smarkm printf("buffer, if this might help.)\r\n"); 29657416Smarkm return 0; 29757416Smarkm } 29857416Smarkm /* OK, they are all OK, now go through again and actually send */ 29957416Smarkm count = 0; 30057416Smarkm for (i = 1; i < argc; i++) { 30157416Smarkm if ((s = GETSEND(argv[i])) == 0) { 30257416Smarkm fprintf(stderr, "Telnet 'send' error - argument disappeared!\r\n"); 30357416Smarkm quit(); 30457416Smarkm /*NOTREACHED*/ 30557416Smarkm } 30657416Smarkm if (s->handler) { 30757416Smarkm count++; 30857416Smarkm success += (*s->handler)((s->narg > 0) ? argv[i+1] : 0, 30957416Smarkm (s->narg > 1) ? argv[i+2] : 0); 31057416Smarkm i += s->narg; 31157416Smarkm } else { 31257416Smarkm NET2ADD(IAC, s->what); 31357416Smarkm printoption("SENT", IAC, s->what); 31457416Smarkm } 31557416Smarkm } 31657416Smarkm return (count == success); 31757416Smarkm} 31857416Smarkm 31957416Smarkmstatic int 32057416Smarkmsend_tncmd(void (*func)(), char *cmd, char *name); 32157416Smarkm 32257416Smarkmstatic int 32357416Smarkmsend_esc() 32457416Smarkm{ 32557416Smarkm NETADD(escape); 32657416Smarkm return 1; 32757416Smarkm} 32857416Smarkm 32957416Smarkmstatic int 33057416Smarkmsend_docmd(char *name) 33157416Smarkm{ 33257416Smarkm return(send_tncmd(send_do, "do", name)); 33357416Smarkm} 33457416Smarkm 33557416Smarkmstatic int 33657416Smarkmsend_dontcmd(char *name) 33757416Smarkm{ 33857416Smarkm return(send_tncmd(send_dont, "dont", name)); 33957416Smarkm} 34057416Smarkm 34157416Smarkmstatic int 34257416Smarkmsend_willcmd(char *name) 34357416Smarkm{ 34457416Smarkm return(send_tncmd(send_will, "will", name)); 34557416Smarkm} 34657416Smarkm 34757416Smarkmstatic int 34857416Smarkmsend_wontcmd(char *name) 34957416Smarkm{ 35057416Smarkm return(send_tncmd(send_wont, "wont", name)); 35157416Smarkm} 35257416Smarkm 35390926Snectarextern char *telopts[]; /* XXX */ 35490926Snectar 35557416Smarkmstatic int 35657416Smarkmsend_tncmd(void (*func)(), char *cmd, char *name) 35757416Smarkm{ 35857416Smarkm char **cpp; 35957416Smarkm int val = 0; 36057416Smarkm 36157416Smarkm if (isprefix(name, "help") || isprefix(name, "?")) { 36257416Smarkm int col, len; 36357416Smarkm 36457416Smarkm printf("Usage: send %s <value|option>\r\n", cmd); 36557416Smarkm printf("\"value\" must be from 0 to 255\r\n"); 36657416Smarkm printf("Valid options are:\r\n\t"); 36757416Smarkm 36857416Smarkm col = 8; 36957416Smarkm for (cpp = telopts; *cpp; cpp++) { 37057416Smarkm len = strlen(*cpp) + 3; 37157416Smarkm if (col + len > 65) { 37257416Smarkm printf("\r\n\t"); 37357416Smarkm col = 8; 37457416Smarkm } 37557416Smarkm printf(" \"%s\"", *cpp); 37657416Smarkm col += len; 37757416Smarkm } 37857416Smarkm printf("\r\n"); 37957416Smarkm return 0; 38057416Smarkm } 38157416Smarkm cpp = genget(name, telopts, sizeof(char *)); 38257416Smarkm if (Ambiguous(cpp)) { 38357416Smarkm fprintf(stderr,"'%s': ambiguous argument ('send %s ?' for help).\r\n", 38457416Smarkm name, cmd); 38557416Smarkm return 0; 38657416Smarkm } 38757416Smarkm if (cpp) { 38857416Smarkm val = cpp - telopts; 38957416Smarkm } else { 39057416Smarkm char *cp = name; 39157416Smarkm 39257416Smarkm while (*cp >= '0' && *cp <= '9') { 39357416Smarkm val *= 10; 39457416Smarkm val += *cp - '0'; 39557416Smarkm cp++; 39657416Smarkm } 39757416Smarkm if (*cp != 0) { 39857416Smarkm fprintf(stderr, "'%s': unknown argument ('send %s ?' for help).\r\n", 39957416Smarkm name, cmd); 40057416Smarkm return 0; 40157416Smarkm } else if (val < 0 || val > 255) { 40257416Smarkm fprintf(stderr, "'%s': bad value ('send %s ?' for help).\r\n", 40357416Smarkm name, cmd); 40457416Smarkm return 0; 40557416Smarkm } 40657416Smarkm } 40757416Smarkm if (!connected) { 40857416Smarkm printf("?Need to be connected first.\r\n"); 40957416Smarkm return 0; 41057416Smarkm } 41157416Smarkm (*func)(val, 1); 41257416Smarkm return 1; 41357416Smarkm} 41457416Smarkm 41557416Smarkmstatic int 41657416Smarkmsend_help() 41757416Smarkm{ 41857416Smarkm struct sendlist *s; /* pointer to current command */ 41957416Smarkm for (s = Sendlist; s->name; s++) { 42057416Smarkm if (s->help) 42157416Smarkm printf("%-15s %s\r\n", s->name, s->help); 42257416Smarkm } 42357416Smarkm return(0); 42457416Smarkm} 42557416Smarkm 42657416Smarkm/* 42757416Smarkm * The following are the routines and data structures referred 42857416Smarkm * to by the arguments to the "toggle" command. 42957416Smarkm */ 43057416Smarkm 43157416Smarkmstatic int 43257416Smarkmlclchars() 43357416Smarkm{ 43457416Smarkm donelclchars = 1; 43557416Smarkm return 1; 43657416Smarkm} 43757416Smarkm 43857416Smarkmstatic int 43957416Smarkmtogdebug() 44057416Smarkm{ 44157416Smarkm#ifndef NOT43 44257416Smarkm if (net > 0 && 44357416Smarkm (SetSockOpt(net, SOL_SOCKET, SO_DEBUG, debug)) < 0) { 44457416Smarkm perror("setsockopt (SO_DEBUG)"); 44557416Smarkm } 44657416Smarkm#else /* NOT43 */ 44757416Smarkm if (debug) { 44857416Smarkm if (net > 0 && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 0, 0) < 0) 44957416Smarkm perror("setsockopt (SO_DEBUG)"); 45057416Smarkm } else 45157416Smarkm printf("Cannot turn off socket debugging\r\n"); 45257416Smarkm#endif /* NOT43 */ 45357416Smarkm return 1; 45457416Smarkm} 45557416Smarkm 45657416Smarkm#if defined(KRB4) && defined(HAVE_KRB_DISABLE_DEBUG) 45757416Smarkm#include <krb.h> 45857416Smarkm 45957416Smarkmstatic int 46057416Smarkmtogkrbdebug(void) 46157416Smarkm{ 46257416Smarkm if(krb_debug) 46357416Smarkm krb_enable_debug(); 46457416Smarkm else 46557416Smarkm krb_disable_debug(); 46657416Smarkm return 1; 46757416Smarkm} 46857416Smarkm#endif 46957416Smarkm 47057416Smarkmstatic int 47157416Smarkmtogcrlf() 47257416Smarkm{ 47357416Smarkm if (crlf) { 47457416Smarkm printf("Will send carriage returns as telnet <CR><LF>.\r\n"); 47557416Smarkm } else { 47657416Smarkm printf("Will send carriage returns as telnet <CR><NUL>.\r\n"); 47757416Smarkm } 47857416Smarkm return 1; 47957416Smarkm} 48057416Smarkm 48157416Smarkmint binmode; 48257416Smarkm 48357416Smarkmstatic int 48457416Smarkmtogbinary(int val) 48557416Smarkm{ 48657416Smarkm donebinarytoggle = 1; 48757416Smarkm 48857416Smarkm if (val >= 0) { 48957416Smarkm binmode = val; 49057416Smarkm } else { 49157416Smarkm if (my_want_state_is_will(TELOPT_BINARY) && 49257416Smarkm my_want_state_is_do(TELOPT_BINARY)) { 49357416Smarkm binmode = 1; 49457416Smarkm } else if (my_want_state_is_wont(TELOPT_BINARY) && 49557416Smarkm my_want_state_is_dont(TELOPT_BINARY)) { 49657416Smarkm binmode = 0; 49757416Smarkm } 49857416Smarkm val = binmode ? 0 : 1; 49957416Smarkm } 50057416Smarkm 50157416Smarkm if (val == 1) { 50257416Smarkm if (my_want_state_is_will(TELOPT_BINARY) && 50357416Smarkm my_want_state_is_do(TELOPT_BINARY)) { 50457416Smarkm printf("Already operating in binary mode with remote host.\r\n"); 50557416Smarkm } else { 50657416Smarkm printf("Negotiating binary mode with remote host.\r\n"); 50757416Smarkm tel_enter_binary(3); 50857416Smarkm } 50957416Smarkm } else { 51057416Smarkm if (my_want_state_is_wont(TELOPT_BINARY) && 51157416Smarkm my_want_state_is_dont(TELOPT_BINARY)) { 51257416Smarkm printf("Already in network ascii mode with remote host.\r\n"); 51357416Smarkm } else { 51457416Smarkm printf("Negotiating network ascii mode with remote host.\r\n"); 51557416Smarkm tel_leave_binary(3); 51657416Smarkm } 51757416Smarkm } 51857416Smarkm return 1; 51957416Smarkm} 52057416Smarkm 52157416Smarkmstatic int 52257416Smarkmtogrbinary(int val) 52357416Smarkm{ 52457416Smarkm donebinarytoggle = 1; 52557416Smarkm 52657416Smarkm if (val == -1) 52757416Smarkm val = my_want_state_is_do(TELOPT_BINARY) ? 0 : 1; 52857416Smarkm 52957416Smarkm if (val == 1) { 53057416Smarkm if (my_want_state_is_do(TELOPT_BINARY)) { 53157416Smarkm printf("Already receiving in binary mode.\r\n"); 53257416Smarkm } else { 53357416Smarkm printf("Negotiating binary mode on input.\r\n"); 53457416Smarkm tel_enter_binary(1); 53557416Smarkm } 53657416Smarkm } else { 53757416Smarkm if (my_want_state_is_dont(TELOPT_BINARY)) { 53857416Smarkm printf("Already receiving in network ascii mode.\r\n"); 53957416Smarkm } else { 54057416Smarkm printf("Negotiating network ascii mode on input.\r\n"); 54157416Smarkm tel_leave_binary(1); 54257416Smarkm } 54357416Smarkm } 54457416Smarkm return 1; 54557416Smarkm} 54657416Smarkm 54757416Smarkmstatic int 54857416Smarkmtogxbinary(int val) 54957416Smarkm{ 55057416Smarkm donebinarytoggle = 1; 55157416Smarkm 55257416Smarkm if (val == -1) 55357416Smarkm val = my_want_state_is_will(TELOPT_BINARY) ? 0 : 1; 55457416Smarkm 55557416Smarkm if (val == 1) { 55657416Smarkm if (my_want_state_is_will(TELOPT_BINARY)) { 55757416Smarkm printf("Already transmitting in binary mode.\r\n"); 55857416Smarkm } else { 55957416Smarkm printf("Negotiating binary mode on output.\r\n"); 56057416Smarkm tel_enter_binary(2); 56157416Smarkm } 56257416Smarkm } else { 56357416Smarkm if (my_want_state_is_wont(TELOPT_BINARY)) { 56457416Smarkm printf("Already transmitting in network ascii mode.\r\n"); 56557416Smarkm } else { 56657416Smarkm printf("Negotiating network ascii mode on output.\r\n"); 56757416Smarkm tel_leave_binary(2); 56857416Smarkm } 56957416Smarkm } 57057416Smarkm return 1; 57157416Smarkm} 57257416Smarkm 57357416Smarkm 57457416Smarkmstatic int togglehelp (void); 57557416Smarkm#if defined(AUTHENTICATION) 57657416Smarkmextern int auth_togdebug (int); 57757416Smarkm#endif 57857416Smarkm#if defined(ENCRYPTION) 57957416Smarkmextern int EncryptAutoEnc (int); 58057416Smarkmextern int EncryptAutoDec (int); 58157416Smarkmextern int EncryptDebug (int); 58257416Smarkmextern int EncryptVerbose (int); 58357416Smarkm#endif 58457416Smarkm 58557416Smarkmstruct togglelist { 58657416Smarkm char *name; /* name of toggle */ 58757416Smarkm char *help; /* help message */ 58857416Smarkm int (*handler)(); /* routine to do actual setting */ 58957416Smarkm int *variable; 59057416Smarkm char *actionexplanation; 59157416Smarkm}; 59257416Smarkm 59357416Smarkmstatic struct togglelist Togglelist[] = { 59457416Smarkm { "autoflush", 59557416Smarkm "flushing of output when sending interrupt characters", 59657416Smarkm 0, 59757416Smarkm &autoflush, 59857416Smarkm "flush output when sending interrupt characters" }, 59957416Smarkm { "autosynch", 60057416Smarkm "automatic sending of interrupt characters in urgent mode", 60157416Smarkm 0, 60257416Smarkm &autosynch, 60357416Smarkm "send interrupt characters in urgent mode" }, 60457416Smarkm#if defined(AUTHENTICATION) 60557416Smarkm { "autologin", 60657416Smarkm "automatic sending of login and/or authentication info", 60757416Smarkm 0, 60857416Smarkm &autologin, 60957416Smarkm "send login name and/or authentication information" }, 61057416Smarkm { "authdebug", 611102644Snectar "authentication debugging", 61257416Smarkm auth_togdebug, 61357416Smarkm 0, 61457416Smarkm "print authentication debugging information" }, 61557416Smarkm#endif 61657416Smarkm#if defined(ENCRYPTION) 61757416Smarkm { "autoencrypt", 61857416Smarkm "automatic encryption of data stream", 61957416Smarkm EncryptAutoEnc, 62057416Smarkm 0, 62157416Smarkm "automatically encrypt output" }, 62257416Smarkm { "autodecrypt", 62357416Smarkm "automatic decryption of data stream", 62457416Smarkm EncryptAutoDec, 62557416Smarkm 0, 62657416Smarkm "automatically decrypt input" }, 62757416Smarkm { "verbose_encrypt", 628102644Snectar "verbose encryption output", 62957416Smarkm EncryptVerbose, 63057416Smarkm 0, 63157416Smarkm "print verbose encryption output" }, 63257416Smarkm { "encdebug", 633102644Snectar "encryption debugging", 63457416Smarkm EncryptDebug, 63557416Smarkm 0, 63657416Smarkm "print encryption debugging information" }, 63757416Smarkm#endif 638102644Snectar#if defined(KRB5) 639102644Snectar { "forward", 640102644Snectar "credentials forwarding", 641102644Snectar kerberos5_set_forward, 642102644Snectar 0, 643102644Snectar "forward credentials" }, 644102644Snectar { "forwardable", 645102644Snectar "forwardable flag of forwarded credentials", 646102644Snectar kerberos5_set_forwardable, 647102644Snectar 0, 648102644Snectar "forward forwardable credentials" }, 649102644Snectar#endif 650102644Snectar { "skiprc", 65157416Smarkm "don't read ~/.telnetrc file", 65257416Smarkm 0, 65357416Smarkm &skiprc, 65457416Smarkm "skip reading of ~/.telnetrc file" }, 65557416Smarkm { "binary", 65657416Smarkm "sending and receiving of binary data", 65757416Smarkm togbinary, 65857416Smarkm 0, 65957416Smarkm 0 }, 66057416Smarkm { "inbinary", 66157416Smarkm "receiving of binary data", 66257416Smarkm togrbinary, 66357416Smarkm 0, 66457416Smarkm 0 }, 66557416Smarkm { "outbinary", 66657416Smarkm "sending of binary data", 66757416Smarkm togxbinary, 66857416Smarkm 0, 66957416Smarkm 0 }, 67057416Smarkm { "crlf", 67157416Smarkm "sending carriage returns as telnet <CR><LF>", 67257416Smarkm togcrlf, 67357416Smarkm &crlf, 67457416Smarkm 0 }, 67557416Smarkm { "crmod", 67657416Smarkm "mapping of received carriage returns", 67757416Smarkm 0, 67857416Smarkm &crmod, 67957416Smarkm "map carriage return on output" }, 68057416Smarkm { "localchars", 68157416Smarkm "local recognition of certain control characters", 68257416Smarkm lclchars, 68357416Smarkm &localchars, 68457416Smarkm "recognize certain control characters" }, 68557416Smarkm { " ", "", 0 }, /* empty line */ 68657416Smarkm { "debug", 68757416Smarkm "debugging", 68857416Smarkm togdebug, 68957416Smarkm &debug, 69057416Smarkm "turn on socket level debugging" }, 69157416Smarkm#if defined(KRB4) && defined(HAVE_KRB_DISABLE_DEBUG) 69257416Smarkm { "krb_debug", 69357416Smarkm "kerberos 4 debugging", 69457416Smarkm togkrbdebug, 69557416Smarkm &krb_debug, 69657416Smarkm "turn on kerberos 4 debugging" }, 69757416Smarkm#endif 69857416Smarkm { "netdata", 69957416Smarkm "printing of hexadecimal network data (debugging)", 70057416Smarkm 0, 70157416Smarkm &netdata, 70257416Smarkm "print hexadecimal representation of network traffic" }, 70357416Smarkm { "prettydump", 70457416Smarkm "output of \"netdata\" to user readable format (debugging)", 70557416Smarkm 0, 70657416Smarkm &prettydump, 70757416Smarkm "print user readable output for \"netdata\"" }, 70857416Smarkm { "options", 70957416Smarkm "viewing of options processing (debugging)", 71057416Smarkm 0, 71157416Smarkm &showoptions, 71257416Smarkm "show option processing" }, 71357416Smarkm { "termdata", 714102644Snectar "printing of hexadecimal terminal data (debugging)", 71557416Smarkm 0, 71657416Smarkm &termdata, 71757416Smarkm "print hexadecimal representation of terminal traffic" }, 71857416Smarkm { "?", 71957416Smarkm 0, 72057416Smarkm togglehelp }, 72157416Smarkm { "help", 72257416Smarkm 0, 72357416Smarkm togglehelp }, 72457416Smarkm { 0 } 72557416Smarkm}; 72657416Smarkm 72757416Smarkmstatic int 72857416Smarkmtogglehelp() 72957416Smarkm{ 73057416Smarkm struct togglelist *c; 73157416Smarkm 73257416Smarkm for (c = Togglelist; c->name; c++) { 73357416Smarkm if (c->help) { 73457416Smarkm if (*c->help) 73557416Smarkm printf("%-15s toggle %s\r\n", c->name, c->help); 73657416Smarkm else 73757416Smarkm printf("\r\n"); 73857416Smarkm } 73957416Smarkm } 74057416Smarkm printf("\r\n"); 74157416Smarkm printf("%-15s %s\r\n", "?", "display help information"); 74257416Smarkm return 0; 74357416Smarkm} 74457416Smarkm 74557416Smarkmstatic void 74657416Smarkmsettogglehelp(int set) 74757416Smarkm{ 74857416Smarkm struct togglelist *c; 74957416Smarkm 75057416Smarkm for (c = Togglelist; c->name; c++) { 75157416Smarkm if (c->help) { 75257416Smarkm if (*c->help) 75357416Smarkm printf("%-15s %s %s\r\n", c->name, set ? "enable" : "disable", 75457416Smarkm c->help); 75557416Smarkm else 75657416Smarkm printf("\r\n"); 75757416Smarkm } 75857416Smarkm } 75957416Smarkm} 76057416Smarkm 76157416Smarkm#define GETTOGGLE(name) (struct togglelist *) \ 76257416Smarkm genget(name, (char **) Togglelist, sizeof(struct togglelist)) 76357416Smarkm 76457416Smarkmstatic int 76557416Smarkmtoggle(int argc, char *argv[]) 76657416Smarkm{ 76757416Smarkm int retval = 1; 76857416Smarkm char *name; 76957416Smarkm struct togglelist *c; 77057416Smarkm 77157416Smarkm if (argc < 2) { 77257416Smarkm fprintf(stderr, 77357416Smarkm "Need an argument to 'toggle' command. 'toggle ?' for help.\r\n"); 77457416Smarkm return 0; 77557416Smarkm } 77657416Smarkm argc--; 77757416Smarkm argv++; 77857416Smarkm while (argc--) { 77957416Smarkm name = *argv++; 78057416Smarkm c = GETTOGGLE(name); 78157416Smarkm if (Ambiguous(c)) { 78257416Smarkm fprintf(stderr, "'%s': ambiguous argument ('toggle ?' for help).\r\n", 78357416Smarkm name); 78457416Smarkm return 0; 78557416Smarkm } else if (c == 0) { 78657416Smarkm fprintf(stderr, "'%s': unknown argument ('toggle ?' for help).\r\n", 78757416Smarkm name); 78857416Smarkm return 0; 78957416Smarkm } else { 79057416Smarkm if (c->variable) { 79157416Smarkm *c->variable = !*c->variable; /* invert it */ 79257416Smarkm if (c->actionexplanation) { 79357416Smarkm printf("%s %s.\r\n", *c->variable? "Will" : "Won't", 79457416Smarkm c->actionexplanation); 79557416Smarkm } 79657416Smarkm } 79757416Smarkm if (c->handler) { 79857416Smarkm retval &= (*c->handler)(-1); 79957416Smarkm } 80057416Smarkm } 80157416Smarkm } 80257416Smarkm return retval; 80357416Smarkm} 80457416Smarkm 80557416Smarkm/* 80657416Smarkm * The following perform the "set" command. 80757416Smarkm */ 80857416Smarkm 80957416Smarkmstruct termios new_tc = { 0 }; 81057416Smarkm 81157416Smarkmstruct setlist { 81257416Smarkm char *name; /* name */ 81357416Smarkm char *help; /* help information */ 81457416Smarkm void (*handler)(); 81557416Smarkm cc_t *charp; /* where it is located at */ 81657416Smarkm}; 81757416Smarkm 81857416Smarkmstatic struct setlist Setlist[] = { 81957416Smarkm#ifdef KLUDGELINEMODE 82057416Smarkm { "echo", "character to toggle local echoing on/off", 0, &echoc }, 82157416Smarkm#endif 82257416Smarkm { "escape", "character to escape back to telnet command mode", 0, &escape }, 82357416Smarkm { "rlogin", "rlogin escape character", 0, &rlogin }, 82457416Smarkm { "tracefile", "file to write trace information to", SetNetTrace, (cc_t *)NetTraceFile}, 82557416Smarkm { " ", "" }, 82657416Smarkm { " ", "The following need 'localchars' to be toggled true", 0, 0 }, 82757416Smarkm { "flushoutput", "character to cause an Abort Output", 0, &termFlushChar }, 82857416Smarkm { "interrupt", "character to cause an Interrupt Process", 0, &termIntChar }, 82957416Smarkm { "quit", "character to cause an Abort process", 0, &termQuitChar }, 83057416Smarkm { "eof", "character to cause an EOF ", 0, &termEofChar }, 83157416Smarkm { " ", "" }, 83257416Smarkm { " ", "The following are for local editing in linemode", 0, 0 }, 83357416Smarkm { "erase", "character to use to erase a character", 0, &termEraseChar }, 83457416Smarkm { "kill", "character to use to erase a line", 0, &termKillChar }, 83557416Smarkm { "lnext", "character to use for literal next", 0, &termLiteralNextChar }, 83657416Smarkm { "susp", "character to cause a Suspend Process", 0, &termSuspChar }, 83757416Smarkm { "reprint", "character to use for line reprint", 0, &termRprntChar }, 83857416Smarkm { "worderase", "character to use to erase a word", 0, &termWerasChar }, 83957416Smarkm { "start", "character to use for XON", 0, &termStartChar }, 84057416Smarkm { "stop", "character to use for XOFF", 0, &termStopChar }, 84157416Smarkm { "forw1", "alternate end of line character", 0, &termForw1Char }, 84257416Smarkm { "forw2", "alternate end of line character", 0, &termForw2Char }, 84357416Smarkm { "ayt", "alternate AYT character", 0, &termAytChar }, 84457416Smarkm { 0 } 84557416Smarkm}; 84657416Smarkm 84757416Smarkmstatic struct setlist * 84857416Smarkmgetset(char *name) 84957416Smarkm{ 85057416Smarkm return (struct setlist *) 85157416Smarkm genget(name, (char **) Setlist, sizeof(struct setlist)); 85257416Smarkm} 85357416Smarkm 85457416Smarkmvoid 85557416Smarkmset_escape_char(char *s) 85657416Smarkm{ 85757416Smarkm if (rlogin != _POSIX_VDISABLE) { 85857416Smarkm rlogin = (s && *s) ? special(s) : _POSIX_VDISABLE; 85957416Smarkm printf("Telnet rlogin escape character is '%s'.\r\n", 86057416Smarkm control(rlogin)); 86157416Smarkm } else { 86257416Smarkm escape = (s && *s) ? special(s) : _POSIX_VDISABLE; 86357416Smarkm printf("Telnet escape character is '%s'.\r\n", control(escape)); 86457416Smarkm } 86557416Smarkm} 86657416Smarkm 86757416Smarkmstatic int 86857416Smarkmsetcmd(int argc, char *argv[]) 86957416Smarkm{ 87057416Smarkm int value; 87157416Smarkm struct setlist *ct; 87257416Smarkm struct togglelist *c; 87357416Smarkm 87457416Smarkm if (argc < 2 || argc > 3) { 87557416Smarkm printf("Format is 'set Name Value'\r\n'set ?' for help.\r\n"); 87657416Smarkm return 0; 87757416Smarkm } 87857416Smarkm if ((argc == 2) && (isprefix(argv[1], "?") || isprefix(argv[1], "help"))) { 87957416Smarkm for (ct = Setlist; ct->name; ct++) 88057416Smarkm printf("%-15s %s\r\n", ct->name, ct->help); 88157416Smarkm printf("\r\n"); 88257416Smarkm settogglehelp(1); 88357416Smarkm printf("%-15s %s\r\n", "?", "display help information"); 88457416Smarkm return 0; 88557416Smarkm } 88657416Smarkm 88757416Smarkm ct = getset(argv[1]); 88857416Smarkm if (ct == 0) { 88957416Smarkm c = GETTOGGLE(argv[1]); 89057416Smarkm if (c == 0) { 89157416Smarkm fprintf(stderr, "'%s': unknown argument ('set ?' for help).\r\n", 89257416Smarkm argv[1]); 89357416Smarkm return 0; 89457416Smarkm } else if (Ambiguous(c)) { 89557416Smarkm fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\r\n", 89657416Smarkm argv[1]); 89757416Smarkm return 0; 89857416Smarkm } 89957416Smarkm if (c->variable) { 90057416Smarkm if ((argc == 2) || (strcmp("on", argv[2]) == 0)) 90157416Smarkm *c->variable = 1; 90257416Smarkm else if (strcmp("off", argv[2]) == 0) 90357416Smarkm *c->variable = 0; 90457416Smarkm else { 90557416Smarkm printf("Format is 'set togglename [on|off]'\r\n'set ?' for help.\r\n"); 90657416Smarkm return 0; 90757416Smarkm } 90857416Smarkm if (c->actionexplanation) { 90957416Smarkm printf("%s %s.\r\n", *c->variable? "Will" : "Won't", 91057416Smarkm c->actionexplanation); 91157416Smarkm } 91257416Smarkm } 91357416Smarkm if (c->handler) 91457416Smarkm (*c->handler)(1); 91557416Smarkm } else if (argc != 3) { 91657416Smarkm printf("Format is 'set Name Value'\r\n'set ?' for help.\r\n"); 91757416Smarkm return 0; 91857416Smarkm } else if (Ambiguous(ct)) { 91957416Smarkm fprintf(stderr, "'%s': ambiguous argument ('set ?' for help).\r\n", 92057416Smarkm argv[1]); 92157416Smarkm return 0; 92257416Smarkm } else if (ct->handler) { 92357416Smarkm (*ct->handler)(argv[2]); 92457416Smarkm printf("%s set to \"%s\".\r\n", ct->name, (char *)ct->charp); 92557416Smarkm } else { 92657416Smarkm if (strcmp("off", argv[2])) { 92757416Smarkm value = special(argv[2]); 92857416Smarkm } else { 92957416Smarkm value = _POSIX_VDISABLE; 93057416Smarkm } 93157416Smarkm *(ct->charp) = (cc_t)value; 93257416Smarkm printf("%s character is '%s'.\r\n", ct->name, control(*(ct->charp))); 93357416Smarkm } 93457416Smarkm slc_check(); 93557416Smarkm return 1; 93657416Smarkm} 93757416Smarkm 93857416Smarkmstatic int 93957416Smarkmunsetcmd(int argc, char *argv[]) 94057416Smarkm{ 94157416Smarkm struct setlist *ct; 94257416Smarkm struct togglelist *c; 94357416Smarkm char *name; 94457416Smarkm 94557416Smarkm if (argc < 2) { 94657416Smarkm fprintf(stderr, 94757416Smarkm "Need an argument to 'unset' command. 'unset ?' for help.\r\n"); 94857416Smarkm return 0; 94957416Smarkm } 95057416Smarkm if (isprefix(argv[1], "?") || isprefix(argv[1], "help")) { 95157416Smarkm for (ct = Setlist; ct->name; ct++) 95257416Smarkm printf("%-15s %s\r\n", ct->name, ct->help); 95357416Smarkm printf("\r\n"); 95457416Smarkm settogglehelp(0); 95557416Smarkm printf("%-15s %s\r\n", "?", "display help information"); 95657416Smarkm return 0; 95757416Smarkm } 95857416Smarkm 95957416Smarkm argc--; 96057416Smarkm argv++; 96157416Smarkm while (argc--) { 96257416Smarkm name = *argv++; 96357416Smarkm ct = getset(name); 96457416Smarkm if (ct == 0) { 96557416Smarkm c = GETTOGGLE(name); 96657416Smarkm if (c == 0) { 96757416Smarkm fprintf(stderr, "'%s': unknown argument ('unset ?' for help).\r\n", 96857416Smarkm name); 96957416Smarkm return 0; 97057416Smarkm } else if (Ambiguous(c)) { 97157416Smarkm fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\r\n", 97257416Smarkm name); 97357416Smarkm return 0; 97457416Smarkm } 97557416Smarkm if (c->variable) { 97657416Smarkm *c->variable = 0; 97757416Smarkm if (c->actionexplanation) { 97857416Smarkm printf("%s %s.\r\n", *c->variable? "Will" : "Won't", 97957416Smarkm c->actionexplanation); 98057416Smarkm } 98157416Smarkm } 98257416Smarkm if (c->handler) 98357416Smarkm (*c->handler)(0); 98457416Smarkm } else if (Ambiguous(ct)) { 98557416Smarkm fprintf(stderr, "'%s': ambiguous argument ('unset ?' for help).\r\n", 98657416Smarkm name); 98757416Smarkm return 0; 98857416Smarkm } else if (ct->handler) { 98957416Smarkm (*ct->handler)(0); 99057416Smarkm printf("%s reset to \"%s\".\r\n", ct->name, (char *)ct->charp); 99157416Smarkm } else { 99257416Smarkm *(ct->charp) = _POSIX_VDISABLE; 99357416Smarkm printf("%s character is '%s'.\r\n", ct->name, control(*(ct->charp))); 99457416Smarkm } 99557416Smarkm } 99657416Smarkm return 1; 99757416Smarkm} 99857416Smarkm 99957416Smarkm/* 100057416Smarkm * The following are the data structures and routines for the 100157416Smarkm * 'mode' command. 100257416Smarkm */ 100357416Smarkm#ifdef KLUDGELINEMODE 100457416Smarkm 100557416Smarkmstatic int 100657416Smarkmdokludgemode(void) 100757416Smarkm{ 100857416Smarkm kludgelinemode = 1; 100957416Smarkm send_wont(TELOPT_LINEMODE, 1); 101057416Smarkm send_dont(TELOPT_SGA, 1); 101157416Smarkm send_dont(TELOPT_ECHO, 1); 101257416Smarkm return 1; 101357416Smarkm} 101457416Smarkm#endif 101557416Smarkm 101657416Smarkmstatic int 101757416Smarkmdolinemode() 101857416Smarkm{ 101957416Smarkm#ifdef KLUDGELINEMODE 102057416Smarkm if (kludgelinemode) 102157416Smarkm send_dont(TELOPT_SGA, 1); 102257416Smarkm#endif 102357416Smarkm send_will(TELOPT_LINEMODE, 1); 102457416Smarkm send_dont(TELOPT_ECHO, 1); 102557416Smarkm return 1; 102657416Smarkm} 102757416Smarkm 102857416Smarkmstatic int 102957416Smarkmdocharmode() 103057416Smarkm{ 103157416Smarkm#ifdef KLUDGELINEMODE 103257416Smarkm if (kludgelinemode) 103357416Smarkm send_do(TELOPT_SGA, 1); 103457416Smarkm else 103557416Smarkm#endif 103657416Smarkm send_wont(TELOPT_LINEMODE, 1); 103757416Smarkm send_do(TELOPT_ECHO, 1); 103857416Smarkm return 1; 103957416Smarkm} 104057416Smarkm 104157416Smarkmstatic int 104257416Smarkmdolmmode(int bit, int on) 104357416Smarkm{ 104457416Smarkm unsigned char c; 104557416Smarkm 104657416Smarkm if (my_want_state_is_wont(TELOPT_LINEMODE)) { 104757416Smarkm printf("?Need to have LINEMODE option enabled first.\r\n"); 104857416Smarkm printf("'mode ?' for help.\r\n"); 104957416Smarkm return 0; 105057416Smarkm } 105157416Smarkm 105257416Smarkm if (on) 105357416Smarkm c = (linemode | bit); 105457416Smarkm else 105557416Smarkm c = (linemode & ~bit); 105657416Smarkm lm_mode(&c, 1, 1); 105757416Smarkm return 1; 105857416Smarkm} 105957416Smarkm 106057416Smarkmstatic int 106157416Smarkmtn_setmode(int bit) 106257416Smarkm{ 106357416Smarkm return dolmmode(bit, 1); 106457416Smarkm} 106557416Smarkm 106657416Smarkmstatic int 106757416Smarkmtn_clearmode(int bit) 106857416Smarkm{ 106957416Smarkm return dolmmode(bit, 0); 107057416Smarkm} 107157416Smarkm 107257416Smarkmstruct modelist { 107357416Smarkm char *name; /* command name */ 107457416Smarkm char *help; /* help string */ 107557416Smarkm int (*handler)(); /* routine which executes command */ 107657416Smarkm int needconnect; /* Do we need to be connected to execute? */ 107757416Smarkm int arg1; 107857416Smarkm}; 107957416Smarkm 108057416Smarkmstatic int modehelp(void); 108157416Smarkm 108257416Smarkmstatic struct modelist ModeList[] = { 108357416Smarkm { "character", "Disable LINEMODE option", docharmode, 1 }, 108457416Smarkm#ifdef KLUDGELINEMODE 108557416Smarkm { "", "(or disable obsolete line-by-line mode)", 0 }, 108657416Smarkm#endif 108757416Smarkm { "line", "Enable LINEMODE option", dolinemode, 1 }, 108857416Smarkm#ifdef KLUDGELINEMODE 108957416Smarkm { "", "(or enable obsolete line-by-line mode)", 0 }, 109057416Smarkm#endif 109157416Smarkm { "", "", 0 }, 109257416Smarkm { "", "These require the LINEMODE option to be enabled", 0 }, 109357416Smarkm { "isig", "Enable signal trapping", tn_setmode, 1, MODE_TRAPSIG }, 109457416Smarkm { "+isig", 0, tn_setmode, 1, MODE_TRAPSIG }, 109557416Smarkm { "-isig", "Disable signal trapping", tn_clearmode, 1, MODE_TRAPSIG }, 109657416Smarkm { "edit", "Enable character editing", tn_setmode, 1, MODE_EDIT }, 109757416Smarkm { "+edit", 0, tn_setmode, 1, MODE_EDIT }, 109857416Smarkm { "-edit", "Disable character editing", tn_clearmode, 1, MODE_EDIT }, 109957416Smarkm { "softtabs", "Enable tab expansion", tn_setmode, 1, MODE_SOFT_TAB }, 110057416Smarkm { "+softtabs", 0, tn_setmode, 1, MODE_SOFT_TAB }, 1101102644Snectar { "-softtabs", "Disable tab expansion", tn_clearmode, 1, MODE_SOFT_TAB }, 110257416Smarkm { "litecho", "Enable literal character echo", tn_setmode, 1, MODE_LIT_ECHO }, 110357416Smarkm { "+litecho", 0, tn_setmode, 1, MODE_LIT_ECHO }, 110457416Smarkm { "-litecho", "Disable literal character echo", tn_clearmode, 1, MODE_LIT_ECHO }, 110557416Smarkm { "help", 0, modehelp, 0 }, 110657416Smarkm#ifdef KLUDGELINEMODE 110757416Smarkm { "kludgeline", 0, dokludgemode, 1 }, 110857416Smarkm#endif 110957416Smarkm { "", "", 0 }, 111057416Smarkm { "?", "Print help information", modehelp, 0 }, 111157416Smarkm { 0 }, 111257416Smarkm}; 111357416Smarkm 111457416Smarkm 111557416Smarkmstatic int 111657416Smarkmmodehelp(void) 111757416Smarkm{ 111857416Smarkm struct modelist *mt; 111957416Smarkm 112057416Smarkm printf("format is: 'mode Mode', where 'Mode' is one of:\r\n\r\n"); 112157416Smarkm for (mt = ModeList; mt->name; mt++) { 112257416Smarkm if (mt->help) { 112357416Smarkm if (*mt->help) 112457416Smarkm printf("%-15s %s\r\n", mt->name, mt->help); 112557416Smarkm else 112657416Smarkm printf("\r\n"); 112757416Smarkm } 112857416Smarkm } 112957416Smarkm return 0; 113057416Smarkm} 113157416Smarkm 113257416Smarkm#define GETMODECMD(name) (struct modelist *) \ 113357416Smarkm genget(name, (char **) ModeList, sizeof(struct modelist)) 113457416Smarkm 113557416Smarkmstatic int 113657416Smarkmmodecmd(int argc, char **argv) 113757416Smarkm{ 113857416Smarkm struct modelist *mt; 113957416Smarkm 114057416Smarkm if (argc != 2) { 114157416Smarkm printf("'mode' command requires an argument\r\n"); 114257416Smarkm printf("'mode ?' for help.\r\n"); 114357416Smarkm } else if ((mt = GETMODECMD(argv[1])) == 0) { 114457416Smarkm fprintf(stderr, "Unknown mode '%s' ('mode ?' for help).\r\n", argv[1]); 114557416Smarkm } else if (Ambiguous(mt)) { 114657416Smarkm fprintf(stderr, "Ambiguous mode '%s' ('mode ?' for help).\r\n", argv[1]); 114757416Smarkm } else if (mt->needconnect && !connected) { 114857416Smarkm printf("?Need to be connected first.\r\n"); 114957416Smarkm printf("'mode ?' for help.\r\n"); 115057416Smarkm } else if (mt->handler) { 115157416Smarkm return (*mt->handler)(mt->arg1); 115257416Smarkm } 115357416Smarkm return 0; 115457416Smarkm} 115557416Smarkm 115657416Smarkm/* 115757416Smarkm * The following data structures and routines implement the 115857416Smarkm * "display" command. 115957416Smarkm */ 116057416Smarkm 116157416Smarkmstatic int 116257416Smarkmdisplay(int argc, char *argv[]) 116357416Smarkm{ 116457416Smarkm struct togglelist *tl; 116557416Smarkm struct setlist *sl; 116657416Smarkm 116757416Smarkm#define dotog(tl) if (tl->variable && tl->actionexplanation) { \ 116857416Smarkm if (*tl->variable) { \ 116957416Smarkm printf("will"); \ 117057416Smarkm } else { \ 117157416Smarkm printf("won't"); \ 117257416Smarkm } \ 117357416Smarkm printf(" %s.\r\n", tl->actionexplanation); \ 117457416Smarkm } 117557416Smarkm 117657416Smarkm#define doset(sl) if (sl->name && *sl->name != ' ') { \ 117757416Smarkm if (sl->handler == 0) \ 117857416Smarkm printf("%-15s [%s]\r\n", sl->name, control(*sl->charp)); \ 117957416Smarkm else \ 118057416Smarkm printf("%-15s \"%s\"\r\n", sl->name, (char *)sl->charp); \ 118157416Smarkm } 118257416Smarkm 118357416Smarkm if (argc == 1) { 118457416Smarkm for (tl = Togglelist; tl->name; tl++) { 118557416Smarkm dotog(tl); 118657416Smarkm } 118757416Smarkm printf("\r\n"); 118857416Smarkm for (sl = Setlist; sl->name; sl++) { 118957416Smarkm doset(sl); 119057416Smarkm } 119157416Smarkm } else { 119257416Smarkm int i; 119357416Smarkm 119457416Smarkm for (i = 1; i < argc; i++) { 119557416Smarkm sl = getset(argv[i]); 119657416Smarkm tl = GETTOGGLE(argv[i]); 119757416Smarkm if (Ambiguous(sl) || Ambiguous(tl)) { 119857416Smarkm printf("?Ambiguous argument '%s'.\r\n", argv[i]); 119957416Smarkm return 0; 120057416Smarkm } else if (!sl && !tl) { 120157416Smarkm printf("?Unknown argument '%s'.\r\n", argv[i]); 120257416Smarkm return 0; 120357416Smarkm } else { 120457416Smarkm if (tl) { 120557416Smarkm dotog(tl); 120657416Smarkm } 120757416Smarkm if (sl) { 120857416Smarkm doset(sl); 120957416Smarkm } 121057416Smarkm } 121157416Smarkm } 121257416Smarkm } 121357416Smarkm/*@*/optionstatus(); 121457416Smarkm#if defined(ENCRYPTION) 121557416Smarkm EncryptStatus(); 121657416Smarkm#endif 121757416Smarkm return 1; 121857416Smarkm#undef doset 121957416Smarkm#undef dotog 122057416Smarkm} 122157416Smarkm 122257416Smarkm/* 122357416Smarkm * The following are the data structures, and many of the routines, 122457416Smarkm * relating to command processing. 122557416Smarkm */ 122657416Smarkm 122757416Smarkm/* 122857416Smarkm * Set the escape character. 122957416Smarkm */ 123057416Smarkmstatic int 123157416Smarkmsetescape(int argc, char *argv[]) 123257416Smarkm{ 123357416Smarkm char *arg; 123457416Smarkm char buf[50]; 123557416Smarkm 123657416Smarkm printf( 123757416Smarkm "Deprecated usage - please use 'set escape%s%s' in the future.\r\n", 123857416Smarkm (argc > 2)? " ":"", (argc > 2)? argv[1]: ""); 123957416Smarkm if (argc > 2) 124057416Smarkm arg = argv[1]; 124157416Smarkm else { 124257416Smarkm printf("new escape character: "); 124357416Smarkm fgets(buf, sizeof(buf), stdin); 124457416Smarkm arg = buf; 124557416Smarkm } 124657416Smarkm if (arg[0] != '\0') 124757416Smarkm escape = arg[0]; 124857416Smarkm printf("Escape character is '%s'.\r\n", control(escape)); 124957416Smarkm 125057416Smarkm fflush(stdout); 125157416Smarkm return 1; 125257416Smarkm} 125357416Smarkm 125457416Smarkmstatic int 125557416Smarkmtogcrmod() 125657416Smarkm{ 125757416Smarkm crmod = !crmod; 125857416Smarkm printf("Deprecated usage - please use 'toggle crmod' in the future.\r\n"); 125957416Smarkm printf("%s map carriage return on output.\r\n", crmod ? "Will" : "Won't"); 126057416Smarkm fflush(stdout); 126157416Smarkm return 1; 126257416Smarkm} 126357416Smarkm 126457416Smarkmstatic int 126557416Smarkmtelnetsuspend() 126657416Smarkm{ 126757416Smarkm#ifdef SIGTSTP 126857416Smarkm setcommandmode(); 126957416Smarkm { 127057416Smarkm long oldrows, oldcols, newrows, newcols, err; 127157416Smarkm 127257416Smarkm err = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0; 127357416Smarkm kill(0, SIGTSTP); 127457416Smarkm /* 127557416Smarkm * If we didn't get the window size before the SUSPEND, but we 127657416Smarkm * can get them now (?), then send the NAWS to make sure that 127757416Smarkm * we are set up for the right window size. 127857416Smarkm */ 127957416Smarkm if (TerminalWindowSize(&newrows, &newcols) && connected && 128057416Smarkm (err || ((oldrows != newrows) || (oldcols != newcols)))) { 128157416Smarkm sendnaws(); 128257416Smarkm } 128357416Smarkm } 128457416Smarkm /* reget parameters in case they were changed */ 128557416Smarkm TerminalSaveState(); 128657416Smarkm setconnmode(0); 128757416Smarkm#else 128857416Smarkm printf("Suspend is not supported. Try the '!' command instead\r\n"); 128957416Smarkm#endif 129057416Smarkm return 1; 129157416Smarkm} 129257416Smarkm 129357416Smarkmstatic int 129457416Smarkmshell(int argc, char **argv) 129557416Smarkm{ 129657416Smarkm long oldrows, oldcols, newrows, newcols, err; 129757416Smarkm 129857416Smarkm setcommandmode(); 129957416Smarkm 130057416Smarkm err = (TerminalWindowSize(&oldrows, &oldcols) == 0) ? 1 : 0; 130157416Smarkm switch(fork()) { 130257416Smarkm case -1: 130357416Smarkm perror("Fork failed\r\n"); 130457416Smarkm break; 130557416Smarkm 130657416Smarkm case 0: 130757416Smarkm { 130857416Smarkm /* 130957416Smarkm * Fire up the shell in the child. 131057416Smarkm */ 131157416Smarkm char *shellp, *shellname; 131257416Smarkm 131357416Smarkm shellp = getenv("SHELL"); 131457416Smarkm if (shellp == NULL) 131557416Smarkm shellp = "/bin/sh"; 131657416Smarkm if ((shellname = strrchr(shellp, '/')) == 0) 131757416Smarkm shellname = shellp; 131857416Smarkm else 131957416Smarkm shellname++; 132057416Smarkm if (argc > 1) 1321178825Sdfr execl(shellp, shellname, "-c", &saveline[1], NULL); 132257416Smarkm else 1323178825Sdfr execl(shellp, shellname, NULL); 132457416Smarkm perror("Execl"); 132557416Smarkm _exit(1); 132657416Smarkm } 132757416Smarkm default: 132857416Smarkm wait((int *)0); /* Wait for the shell to complete */ 132957416Smarkm 133057416Smarkm if (TerminalWindowSize(&newrows, &newcols) && connected && 133157416Smarkm (err || ((oldrows != newrows) || (oldcols != newcols)))) { 133257416Smarkm sendnaws(); 133357416Smarkm } 133457416Smarkm break; 133557416Smarkm } 133657416Smarkm return 1; 133757416Smarkm} 133857416Smarkm 133957416Smarkmstatic int 134057416Smarkmbye(int argc, char **argv) 134157416Smarkm{ 134257416Smarkm if (connected) { 134357416Smarkm shutdown(net, 2); 134457416Smarkm printf("Connection closed.\r\n"); 134557416Smarkm NetClose(net); 134657416Smarkm connected = 0; 134757416Smarkm resettermname = 1; 134857416Smarkm#if defined(AUTHENTICATION) || defined(ENCRYPTION) 134957416Smarkm auth_encrypt_connect(connected); 135057416Smarkm#endif 135157416Smarkm /* reset options */ 135257416Smarkm tninit(); 135357416Smarkm } 135457416Smarkm if ((argc != 2) || (strcmp(argv[1], "fromquit") != 0)) 135557416Smarkm longjmp(toplevel, 1); 135657416Smarkm return 0; /* NOTREACHED */ 135757416Smarkm} 135857416Smarkm 135957416Smarkmint 136057416Smarkmquit(void) 136157416Smarkm{ 136257416Smarkm call(bye, "bye", "fromquit", 0); 136357416Smarkm Exit(0); 136457416Smarkm return 0; /*NOTREACHED*/ 136557416Smarkm} 136657416Smarkm 136757416Smarkmstatic int 136857416Smarkmlogout() 136957416Smarkm{ 137057416Smarkm send_do(TELOPT_LOGOUT, 1); 137157416Smarkm netflush(); 137257416Smarkm return 1; 137357416Smarkm} 137457416Smarkm 137557416Smarkm 137657416Smarkm/* 137757416Smarkm * The SLC command. 137857416Smarkm */ 137957416Smarkm 138057416Smarkmstruct slclist { 138157416Smarkm char *name; 138257416Smarkm char *help; 138357416Smarkm void (*handler)(); 138457416Smarkm int arg; 138557416Smarkm}; 138657416Smarkm 138757416Smarkmstatic void slc_help(void); 138857416Smarkm 138957416Smarkmstruct slclist SlcList[] = { 139057416Smarkm { "export", "Use local special character definitions", 139157416Smarkm slc_mode_export, 0 }, 139257416Smarkm { "import", "Use remote special character definitions", 139357416Smarkm slc_mode_import, 1 }, 139457416Smarkm { "check", "Verify remote special character definitions", 139557416Smarkm slc_mode_import, 0 }, 139657416Smarkm { "help", 0, slc_help, 0 }, 139757416Smarkm { "?", "Print help information", slc_help, 0 }, 139857416Smarkm { 0 }, 139957416Smarkm}; 140057416Smarkm 140157416Smarkmstatic void 140257416Smarkmslc_help(void) 140357416Smarkm{ 140457416Smarkm struct slclist *c; 140557416Smarkm 140657416Smarkm for (c = SlcList; c->name; c++) { 140757416Smarkm if (c->help) { 140857416Smarkm if (*c->help) 140957416Smarkm printf("%-15s %s\r\n", c->name, c->help); 141057416Smarkm else 141157416Smarkm printf("\r\n"); 141257416Smarkm } 141357416Smarkm } 141457416Smarkm} 141557416Smarkm 141657416Smarkmstatic struct slclist * 141757416Smarkmgetslc(char *name) 141857416Smarkm{ 141957416Smarkm return (struct slclist *) 142057416Smarkm genget(name, (char **) SlcList, sizeof(struct slclist)); 142157416Smarkm} 142257416Smarkm 142357416Smarkmstatic int 142457416Smarkmslccmd(int argc, char **argv) 142557416Smarkm{ 142657416Smarkm struct slclist *c; 142757416Smarkm 142857416Smarkm if (argc != 2) { 142957416Smarkm fprintf(stderr, 143057416Smarkm "Need an argument to 'slc' command. 'slc ?' for help.\r\n"); 143157416Smarkm return 0; 143257416Smarkm } 143357416Smarkm c = getslc(argv[1]); 143457416Smarkm if (c == 0) { 143557416Smarkm fprintf(stderr, "'%s': unknown argument ('slc ?' for help).\r\n", 143657416Smarkm argv[1]); 143757416Smarkm return 0; 143857416Smarkm } 143957416Smarkm if (Ambiguous(c)) { 144057416Smarkm fprintf(stderr, "'%s': ambiguous argument ('slc ?' for help).\r\n", 144157416Smarkm argv[1]); 144257416Smarkm return 0; 144357416Smarkm } 144457416Smarkm (*c->handler)(c->arg); 144557416Smarkm slcstate(); 144657416Smarkm return 1; 144757416Smarkm} 144857416Smarkm 144957416Smarkm/* 145057416Smarkm * The ENVIRON command. 145157416Smarkm */ 145257416Smarkm 145357416Smarkmstruct envlist { 145457416Smarkm char *name; 145557416Smarkm char *help; 145657416Smarkm void (*handler)(); 145757416Smarkm int narg; 145857416Smarkm}; 145957416Smarkm 146057416Smarkmstatic void env_help (void); 146157416Smarkm 146257416Smarkmstruct envlist EnvList[] = { 146357416Smarkm { "define", "Define an environment variable", 146457416Smarkm (void (*)())env_define, 2 }, 146557416Smarkm { "undefine", "Undefine an environment variable", 146657416Smarkm env_undefine, 1 }, 146757416Smarkm { "export", "Mark an environment variable for automatic export", 146857416Smarkm env_export, 1 }, 146957416Smarkm { "unexport", "Don't mark an environment variable for automatic export", 147057416Smarkm env_unexport, 1 }, 147157416Smarkm { "send", "Send an environment variable", env_send, 1 }, 147257416Smarkm { "list", "List the current environment variables", 147357416Smarkm env_list, 0 }, 147457416Smarkm { "help", 0, env_help, 0 }, 147557416Smarkm { "?", "Print help information", env_help, 0 }, 147657416Smarkm { 0 }, 147757416Smarkm}; 147857416Smarkm 147957416Smarkmstatic void 148057416Smarkmenv_help() 148157416Smarkm{ 148257416Smarkm struct envlist *c; 148357416Smarkm 148457416Smarkm for (c = EnvList; c->name; c++) { 148557416Smarkm if (c->help) { 148657416Smarkm if (*c->help) 148757416Smarkm printf("%-15s %s\r\n", c->name, c->help); 148857416Smarkm else 148957416Smarkm printf("\r\n"); 149057416Smarkm } 149157416Smarkm } 149257416Smarkm} 149357416Smarkm 149457416Smarkmstatic struct envlist * 149557416Smarkmgetenvcmd(char *name) 149657416Smarkm{ 149757416Smarkm return (struct envlist *) 149857416Smarkm genget(name, (char **) EnvList, sizeof(struct envlist)); 149957416Smarkm} 150057416Smarkm 150157416Smarkmstatic int 150257416Smarkmenv_cmd(int argc, char **argv) 150357416Smarkm{ 150457416Smarkm struct envlist *c; 150557416Smarkm 150657416Smarkm if (argc < 2) { 150757416Smarkm fprintf(stderr, 150857416Smarkm "Need an argument to 'environ' command. 'environ ?' for help.\r\n"); 150957416Smarkm return 0; 151057416Smarkm } 151157416Smarkm c = getenvcmd(argv[1]); 151257416Smarkm if (c == 0) { 151357416Smarkm fprintf(stderr, "'%s': unknown argument ('environ ?' for help).\r\n", 151457416Smarkm argv[1]); 151557416Smarkm return 0; 151657416Smarkm } 151757416Smarkm if (Ambiguous(c)) { 151857416Smarkm fprintf(stderr, "'%s': ambiguous argument ('environ ?' for help).\r\n", 151957416Smarkm argv[1]); 152057416Smarkm return 0; 152157416Smarkm } 152257416Smarkm if (c->narg + 2 != argc) { 152357416Smarkm fprintf(stderr, 152457416Smarkm "Need %s%d argument%s to 'environ %s' command. 'environ ?' for help.\r\n", 152557416Smarkm c->narg < argc + 2 ? "only " : "", 152657416Smarkm c->narg, c->narg == 1 ? "" : "s", c->name); 152757416Smarkm return 0; 152857416Smarkm } 152957416Smarkm (*c->handler)(argv[2], argv[3]); 153057416Smarkm return 1; 153157416Smarkm} 153257416Smarkm 153357416Smarkmstruct env_lst { 153457416Smarkm struct env_lst *next; /* pointer to next structure */ 153557416Smarkm struct env_lst *prev; /* pointer to previous structure */ 153657416Smarkm unsigned char *var; /* pointer to variable name */ 153757416Smarkm unsigned char *value; /* pointer to variable value */ 153857416Smarkm int export; /* 1 -> export with default list of variables */ 153957416Smarkm int welldefined; /* A well defined variable */ 154057416Smarkm}; 154157416Smarkm 154257416Smarkmstruct env_lst envlisthead; 154357416Smarkm 154457416Smarkmstruct env_lst * 154557416Smarkmenv_find(unsigned char *var) 154657416Smarkm{ 154757416Smarkm struct env_lst *ep; 154857416Smarkm 154957416Smarkm for (ep = envlisthead.next; ep; ep = ep->next) { 155057416Smarkm if (strcmp((char *)ep->var, (char *)var) == 0) 155157416Smarkm return(ep); 155257416Smarkm } 155357416Smarkm return(NULL); 155457416Smarkm} 155557416Smarkm 1556102644Snectar#ifdef IRIX4 155757416Smarkm#define environ _environ 155857416Smarkm#endif 155957416Smarkm 156057416Smarkmvoid 156157416Smarkmenv_init(void) 156257416Smarkm{ 156357416Smarkm char **epp, *cp; 156457416Smarkm struct env_lst *ep; 156557416Smarkm 156657416Smarkm for (epp = environ; *epp; epp++) { 156757416Smarkm if ((cp = strchr(*epp, '='))) { 156857416Smarkm *cp = '\0'; 156957416Smarkm ep = env_define((unsigned char *)*epp, 157057416Smarkm (unsigned char *)cp+1); 157157416Smarkm ep->export = 0; 157257416Smarkm *cp = '='; 157357416Smarkm } 157457416Smarkm } 157557416Smarkm /* 157657416Smarkm * Special case for DISPLAY variable. If it is ":0.0" or 157757416Smarkm * "unix:0.0", we have to get rid of "unix" and insert our 157857416Smarkm * hostname. 157957416Smarkm */ 158090926Snectar if ((ep = env_find((unsigned char*)"DISPLAY")) 158157416Smarkm && (*ep->value == ':' 158257416Smarkm || strncmp((char *)ep->value, "unix:", 5) == 0)) { 158357416Smarkm char hbuf[256+1]; 158457416Smarkm char *cp2 = strchr((char *)ep->value, ':'); 1585178825Sdfr int error; 158657416Smarkm 158757416Smarkm /* XXX - should be k_gethostname? */ 158857416Smarkm gethostname(hbuf, 256); 158957416Smarkm hbuf[256] = '\0'; 159057416Smarkm 159157416Smarkm /* If this is not the full name, try to get it via DNS */ 159257416Smarkm if (strchr(hbuf, '.') == 0) { 159357416Smarkm struct addrinfo hints, *ai, *a; 159457416Smarkm 159557416Smarkm memset (&hints, 0, sizeof(hints)); 159657416Smarkm hints.ai_flags = AI_CANONNAME; 159757416Smarkm 159857416Smarkm error = getaddrinfo (hbuf, NULL, &hints, &ai); 159957416Smarkm if (error == 0) { 160057416Smarkm for (a = ai; a != NULL; a = a->ai_next) 160157416Smarkm if (a->ai_canonname != NULL) { 160257416Smarkm strlcpy (hbuf, 160357416Smarkm ai->ai_canonname, 160457416Smarkm 256); 160557416Smarkm break; 160657416Smarkm } 160757416Smarkm freeaddrinfo (ai); 160857416Smarkm } 160957416Smarkm } 161057416Smarkm 1611178825Sdfr error = asprintf (&cp, "%s%s", hbuf, cp2); 1612178825Sdfr if (error != -1) { 1613178825Sdfr free (ep->value); 1614178825Sdfr ep->value = (unsigned char *)cp; 1615178825Sdfr } 161657416Smarkm } 161757416Smarkm /* 161857416Smarkm * If USER is not defined, but LOGNAME is, then add 161957416Smarkm * USER with the value from LOGNAME. By default, we 162057416Smarkm * don't export the USER variable. 162157416Smarkm */ 162290926Snectar if ((env_find((unsigned char*)"USER") == NULL) && 162390926Snectar (ep = env_find((unsigned char*)"LOGNAME"))) { 162457416Smarkm env_define((unsigned char *)"USER", ep->value); 162557416Smarkm env_unexport((unsigned char *)"USER"); 162657416Smarkm } 162757416Smarkm env_export((unsigned char *)"DISPLAY"); 162857416Smarkm env_export((unsigned char *)"PRINTER"); 162957416Smarkm env_export((unsigned char *)"XAUTHORITY"); 163057416Smarkm} 163157416Smarkm 163257416Smarkmstruct env_lst * 163357416Smarkmenv_define(unsigned char *var, unsigned char *value) 163457416Smarkm{ 163557416Smarkm struct env_lst *ep; 163657416Smarkm 163757416Smarkm if ((ep = env_find(var))) { 163857416Smarkm if (ep->var) 163957416Smarkm free(ep->var); 164057416Smarkm if (ep->value) 164157416Smarkm free(ep->value); 164257416Smarkm } else { 164357416Smarkm ep = (struct env_lst *)malloc(sizeof(struct env_lst)); 164457416Smarkm ep->next = envlisthead.next; 164557416Smarkm envlisthead.next = ep; 164657416Smarkm ep->prev = &envlisthead; 164757416Smarkm if (ep->next) 164857416Smarkm ep->next->prev = ep; 164957416Smarkm } 165057416Smarkm ep->welldefined = opt_welldefined((char *)var); 165157416Smarkm ep->export = 1; 165257416Smarkm ep->var = (unsigned char *)strdup((char *)var); 165357416Smarkm ep->value = (unsigned char *)strdup((char *)value); 165457416Smarkm return(ep); 165557416Smarkm} 165657416Smarkm 165757416Smarkmvoid 165857416Smarkmenv_undefine(unsigned char *var) 165957416Smarkm{ 166057416Smarkm struct env_lst *ep; 166157416Smarkm 166257416Smarkm if ((ep = env_find(var))) { 166357416Smarkm ep->prev->next = ep->next; 166457416Smarkm if (ep->next) 166557416Smarkm ep->next->prev = ep->prev; 166657416Smarkm if (ep->var) 166757416Smarkm free(ep->var); 166857416Smarkm if (ep->value) 166957416Smarkm free(ep->value); 167057416Smarkm free(ep); 167157416Smarkm } 167257416Smarkm} 167357416Smarkm 167457416Smarkmvoid 167557416Smarkmenv_export(unsigned char *var) 167657416Smarkm{ 167757416Smarkm struct env_lst *ep; 167857416Smarkm 167957416Smarkm if ((ep = env_find(var))) 168057416Smarkm ep->export = 1; 168157416Smarkm} 168257416Smarkm 168357416Smarkmvoid 168457416Smarkmenv_unexport(unsigned char *var) 168557416Smarkm{ 168657416Smarkm struct env_lst *ep; 168757416Smarkm 168857416Smarkm if ((ep = env_find(var))) 168957416Smarkm ep->export = 0; 169057416Smarkm} 169157416Smarkm 169257416Smarkmvoid 169357416Smarkmenv_send(unsigned char *var) 169457416Smarkm{ 169557416Smarkm struct env_lst *ep; 169657416Smarkm 169757416Smarkm if (my_state_is_wont(TELOPT_NEW_ENVIRON) 169857416Smarkm#ifdef OLD_ENVIRON 169957416Smarkm && my_state_is_wont(TELOPT_OLD_ENVIRON) 170057416Smarkm#endif 170157416Smarkm ) { 170257416Smarkm fprintf(stderr, 170357416Smarkm "Cannot send '%s': Telnet ENVIRON option not enabled\r\n", 170457416Smarkm var); 170557416Smarkm return; 170657416Smarkm } 170757416Smarkm ep = env_find(var); 170857416Smarkm if (ep == 0) { 170957416Smarkm fprintf(stderr, "Cannot send '%s': variable not defined\r\n", 171057416Smarkm var); 171157416Smarkm return; 171257416Smarkm } 171357416Smarkm env_opt_start_info(); 171457416Smarkm env_opt_add(ep->var); 171557416Smarkm env_opt_end(0); 171657416Smarkm} 171757416Smarkm 171857416Smarkmvoid 171957416Smarkmenv_list(void) 172057416Smarkm{ 172157416Smarkm struct env_lst *ep; 172257416Smarkm 172357416Smarkm for (ep = envlisthead.next; ep; ep = ep->next) { 172457416Smarkm printf("%c %-20s %s\r\n", ep->export ? '*' : ' ', 172557416Smarkm ep->var, ep->value); 172657416Smarkm } 172757416Smarkm} 172857416Smarkm 172957416Smarkmunsigned char * 173057416Smarkmenv_default(int init, int welldefined) 173157416Smarkm{ 173257416Smarkm static struct env_lst *nep = NULL; 173357416Smarkm 173457416Smarkm if (init) { 173557416Smarkm nep = &envlisthead; 173657416Smarkm return NULL; 173757416Smarkm } 173857416Smarkm if (nep) { 173957416Smarkm while ((nep = nep->next)) { 174057416Smarkm if (nep->export && (nep->welldefined == welldefined)) 174157416Smarkm return(nep->var); 174257416Smarkm } 174357416Smarkm } 174457416Smarkm return(NULL); 174557416Smarkm} 174657416Smarkm 174757416Smarkmunsigned char * 174857416Smarkmenv_getvalue(unsigned char *var) 174957416Smarkm{ 175057416Smarkm struct env_lst *ep; 175157416Smarkm 175257416Smarkm if ((ep = env_find(var))) 175357416Smarkm return(ep->value); 175457416Smarkm return(NULL); 175557416Smarkm} 175657416Smarkm 175757416Smarkm 175857416Smarkm#if defined(AUTHENTICATION) 175957416Smarkm/* 176057416Smarkm * The AUTHENTICATE command. 176157416Smarkm */ 176257416Smarkm 176357416Smarkmstruct authlist { 176457416Smarkm char *name; 176557416Smarkm char *help; 176657416Smarkm int (*handler)(); 176757416Smarkm int narg; 176857416Smarkm}; 176957416Smarkm 177057416Smarkmstatic int 177157416Smarkm auth_help (void); 177257416Smarkm 177357416Smarkmstruct authlist AuthList[] = { 177457416Smarkm { "status", "Display current status of authentication information", 177557416Smarkm auth_status, 0 }, 177657416Smarkm { "disable", "Disable an authentication type ('auth disable ?' for more)", 177757416Smarkm auth_disable, 1 }, 177857416Smarkm { "enable", "Enable an authentication type ('auth enable ?' for more)", 177957416Smarkm auth_enable, 1 }, 178057416Smarkm { "help", 0, auth_help, 0 }, 178157416Smarkm { "?", "Print help information", auth_help, 0 }, 178257416Smarkm { 0 }, 178357416Smarkm}; 178457416Smarkm 178557416Smarkmstatic int 178657416Smarkmauth_help() 178757416Smarkm{ 178857416Smarkm struct authlist *c; 178957416Smarkm 179057416Smarkm for (c = AuthList; c->name; c++) { 179157416Smarkm if (c->help) { 179257416Smarkm if (*c->help) 179357416Smarkm printf("%-15s %s\r\n", c->name, c->help); 179457416Smarkm else 179557416Smarkm printf("\r\n"); 179657416Smarkm } 179757416Smarkm } 179857416Smarkm return 0; 179957416Smarkm} 180057416Smarkm 180157416Smarkmstatic int 180257416Smarkmauth_cmd(int argc, char **argv) 180357416Smarkm{ 180457416Smarkm struct authlist *c; 180557416Smarkm 180657416Smarkm if (argc < 2) { 180757416Smarkm fprintf(stderr, 180857416Smarkm "Need an argument to 'auth' command. 'auth ?' for help.\r\n"); 180957416Smarkm return 0; 181057416Smarkm } 181157416Smarkm 181257416Smarkm c = (struct authlist *) 181357416Smarkm genget(argv[1], (char **) AuthList, sizeof(struct authlist)); 181457416Smarkm if (c == 0) { 181557416Smarkm fprintf(stderr, "'%s': unknown argument ('auth ?' for help).\r\n", 181657416Smarkm argv[1]); 181757416Smarkm return 0; 181857416Smarkm } 181957416Smarkm if (Ambiguous(c)) { 182057416Smarkm fprintf(stderr, "'%s': ambiguous argument ('auth ?' for help).\r\n", 182157416Smarkm argv[1]); 182257416Smarkm return 0; 182357416Smarkm } 182457416Smarkm if (c->narg + 2 != argc) { 182557416Smarkm fprintf(stderr, 182657416Smarkm "Need %s%d argument%s to 'auth %s' command. 'auth ?' for help.\r\n", 182757416Smarkm c->narg < argc + 2 ? "only " : "", 182857416Smarkm c->narg, c->narg == 1 ? "" : "s", c->name); 182957416Smarkm return 0; 183057416Smarkm } 183157416Smarkm return((*c->handler)(argv[2], argv[3])); 183257416Smarkm} 183357416Smarkm#endif 183457416Smarkm 183557416Smarkm 183657416Smarkm#if defined(ENCRYPTION) 183757416Smarkm/* 183857416Smarkm * The ENCRYPT command. 183957416Smarkm */ 184057416Smarkm 184157416Smarkmstruct encryptlist { 184257416Smarkm char *name; 184357416Smarkm char *help; 184457416Smarkm int (*handler)(); 184557416Smarkm int needconnect; 184657416Smarkm int minarg; 184757416Smarkm int maxarg; 184857416Smarkm}; 184957416Smarkm 185057416Smarkmstatic int 185157416Smarkm EncryptHelp (void); 185257416Smarkm 185357416Smarkmstruct encryptlist EncryptList[] = { 185457416Smarkm { "enable", "Enable encryption. ('encrypt enable ?' for more)", 185557416Smarkm EncryptEnable, 1, 1, 2 }, 185657416Smarkm { "disable", "Disable encryption. ('encrypt enable ?' for more)", 185757416Smarkm EncryptDisable, 0, 1, 2 }, 185857416Smarkm { "type", "Set encryptiong type. ('encrypt type ?' for more)", 185957416Smarkm EncryptType, 0, 1, 1 }, 186057416Smarkm { "start", "Start encryption. ('encrypt start ?' for more)", 186157416Smarkm EncryptStart, 1, 0, 1 }, 186257416Smarkm { "stop", "Stop encryption. ('encrypt stop ?' for more)", 186357416Smarkm EncryptStop, 1, 0, 1 }, 186457416Smarkm { "input", "Start encrypting the input stream", 186557416Smarkm EncryptStartInput, 1, 0, 0 }, 186657416Smarkm { "-input", "Stop encrypting the input stream", 186757416Smarkm EncryptStopInput, 1, 0, 0 }, 186857416Smarkm { "output", "Start encrypting the output stream", 186957416Smarkm EncryptStartOutput, 1, 0, 0 }, 187057416Smarkm { "-output", "Stop encrypting the output stream", 187157416Smarkm EncryptStopOutput, 1, 0, 0 }, 187257416Smarkm 187357416Smarkm { "status", "Display current status of authentication information", 187457416Smarkm EncryptStatus, 0, 0, 0 }, 187557416Smarkm { "help", 0, EncryptHelp, 0, 0, 0 }, 187657416Smarkm { "?", "Print help information", EncryptHelp, 0, 0, 0 }, 187757416Smarkm { 0 }, 187857416Smarkm}; 187957416Smarkm 188057416Smarkmstatic int 188157416SmarkmEncryptHelp() 188257416Smarkm{ 188357416Smarkm struct encryptlist *c; 188457416Smarkm 188557416Smarkm for (c = EncryptList; c->name; c++) { 188657416Smarkm if (c->help) { 188757416Smarkm if (*c->help) 188857416Smarkm printf("%-15s %s\r\n", c->name, c->help); 188957416Smarkm else 189057416Smarkm printf("\r\n"); 189157416Smarkm } 189257416Smarkm } 189357416Smarkm return 0; 189457416Smarkm} 189557416Smarkm 189657416Smarkmstatic int 189757416Smarkmencrypt_cmd(int argc, char **argv) 189857416Smarkm{ 189957416Smarkm struct encryptlist *c; 190057416Smarkm 190157416Smarkm c = (struct encryptlist *) 190257416Smarkm genget(argv[1], (char **) EncryptList, sizeof(struct encryptlist)); 190357416Smarkm if (c == 0) { 190457416Smarkm fprintf(stderr, "'%s': unknown argument ('encrypt ?' for help).\r\n", 190557416Smarkm argv[1]); 190657416Smarkm return 0; 190757416Smarkm } 190857416Smarkm if (Ambiguous(c)) { 190957416Smarkm fprintf(stderr, "'%s': ambiguous argument ('encrypt ?' for help).\r\n", 191057416Smarkm argv[1]); 191157416Smarkm return 0; 191257416Smarkm } 191357416Smarkm argc -= 2; 191457416Smarkm if (argc < c->minarg || argc > c->maxarg) { 191557416Smarkm if (c->minarg == c->maxarg) { 191657416Smarkm fprintf(stderr, "Need %s%d argument%s ", 191757416Smarkm c->minarg < argc ? "only " : "", c->minarg, 191857416Smarkm c->minarg == 1 ? "" : "s"); 191957416Smarkm } else { 192057416Smarkm fprintf(stderr, "Need %s%d-%d arguments ", 192157416Smarkm c->maxarg < argc ? "only " : "", c->minarg, c->maxarg); 192257416Smarkm } 192357416Smarkm fprintf(stderr, "to 'encrypt %s' command. 'encrypt ?' for help.\r\n", 192457416Smarkm c->name); 192557416Smarkm return 0; 192657416Smarkm } 192757416Smarkm if (c->needconnect && !connected) { 192857416Smarkm if (!(argc && (isprefix(argv[2], "help") || isprefix(argv[2], "?")))) { 192957416Smarkm printf("?Need to be connected first.\r\n"); 193057416Smarkm return 0; 193157416Smarkm } 193257416Smarkm } 193357416Smarkm return ((*c->handler)(argc > 0 ? argv[2] : 0, 193457416Smarkm argc > 1 ? argv[3] : 0, 193557416Smarkm argc > 2 ? argv[4] : 0)); 193657416Smarkm} 193757416Smarkm#endif 193857416Smarkm 193957416Smarkm 194057416Smarkm/* 194157416Smarkm * Print status about the connection. 194257416Smarkm */ 194357416Smarkm 194457416Smarkmstatic int 194557416Smarkmstatus(int argc, char **argv) 194657416Smarkm{ 194757416Smarkm if (connected) { 194857416Smarkm printf("Connected to %s.\r\n", hostname); 194957416Smarkm if ((argc < 2) || strcmp(argv[1], "notmuch")) { 195057416Smarkm int mode = getconnmode(); 195157416Smarkm 195257416Smarkm if (my_want_state_is_will(TELOPT_LINEMODE)) { 195357416Smarkm printf("Operating with LINEMODE option\r\n"); 195457416Smarkm printf("%s line editing\r\n", (mode&MODE_EDIT) ? "Local" : "No"); 195557416Smarkm printf("%s catching of signals\r\n", 195657416Smarkm (mode&MODE_TRAPSIG) ? "Local" : "No"); 195757416Smarkm slcstate(); 195857416Smarkm#ifdef KLUDGELINEMODE 195957416Smarkm } else if (kludgelinemode && my_want_state_is_dont(TELOPT_SGA)) { 196057416Smarkm printf("Operating in obsolete linemode\r\n"); 196157416Smarkm#endif 196257416Smarkm } else { 196357416Smarkm printf("Operating in single character mode\r\n"); 196457416Smarkm if (localchars) 196557416Smarkm printf("Catching signals locally\r\n"); 196657416Smarkm } 196757416Smarkm printf("%s character echo\r\n", (mode&MODE_ECHO) ? "Local" : "Remote"); 196857416Smarkm if (my_want_state_is_will(TELOPT_LFLOW)) 196957416Smarkm printf("%s flow control\r\n", (mode&MODE_FLOW) ? "Local" : "No"); 197057416Smarkm#if defined(ENCRYPTION) 197157416Smarkm encrypt_display(); 197257416Smarkm#endif 197357416Smarkm } 197457416Smarkm } else { 197557416Smarkm printf("No connection.\r\n"); 197657416Smarkm } 197757416Smarkm printf("Escape character is '%s'.\r\n", control(escape)); 197857416Smarkm fflush(stdout); 197957416Smarkm return 1; 198057416Smarkm} 198157416Smarkm 198257416Smarkm#ifdef SIGINFO 198357416Smarkm/* 198457416Smarkm * Function that gets called when SIGINFO is received. 198557416Smarkm */ 198678527SassarRETSIGTYPE 198757416Smarkmayt_status(int ignore) 198857416Smarkm{ 198957416Smarkm call(status, "status", "notmuch", 0); 199057416Smarkm} 199157416Smarkm#endif 199257416Smarkm 199357416Smarkmstatic Command *getcmd(char *name); 199457416Smarkm 199557416Smarkmstatic void 199657416Smarkmcmdrc(char *m1, char *m2) 199757416Smarkm{ 199857416Smarkm static char rcname[128]; 199957416Smarkm Command *c; 200057416Smarkm FILE *rcfile; 200157416Smarkm int gotmachine = 0; 200257416Smarkm int l1 = strlen(m1); 200357416Smarkm int l2 = strlen(m2); 200457416Smarkm char m1save[64]; 200557416Smarkm 200657416Smarkm if (skiprc) 200757416Smarkm return; 200857416Smarkm 200957416Smarkm strlcpy(m1save, m1, sizeof(m1save)); 201057416Smarkm m1 = m1save; 201157416Smarkm 201257416Smarkm if (rcname[0] == 0) { 201357416Smarkm char *home = getenv("HOME"); 201457416Smarkm 201557416Smarkm snprintf (rcname, sizeof(rcname), "%s/.telnetrc", 201657416Smarkm home ? home : ""); 201757416Smarkm } 201857416Smarkm 201957416Smarkm if ((rcfile = fopen(rcname, "r")) == 0) { 202057416Smarkm return; 202157416Smarkm } 202257416Smarkm 202357416Smarkm for (;;) { 202457416Smarkm if (fgets(line, sizeof(line), rcfile) == NULL) 202557416Smarkm break; 202657416Smarkm if (line[0] == 0) 202757416Smarkm break; 202857416Smarkm if (line[0] == '#') 202957416Smarkm continue; 203057416Smarkm if (gotmachine) { 2031178825Sdfr if (!isspace((unsigned char)line[0])) 203257416Smarkm gotmachine = 0; 203357416Smarkm } 203457416Smarkm if (gotmachine == 0) { 2035178825Sdfr if (isspace((unsigned char)line[0])) 203657416Smarkm continue; 203757416Smarkm if (strncasecmp(line, m1, l1) == 0) 203857416Smarkm strncpy(line, &line[l1], sizeof(line) - l1); 203957416Smarkm else if (strncasecmp(line, m2, l2) == 0) 204057416Smarkm strncpy(line, &line[l2], sizeof(line) - l2); 204157416Smarkm else if (strncasecmp(line, "DEFAULT", 7) == 0) 204257416Smarkm strncpy(line, &line[7], sizeof(line) - 7); 204357416Smarkm else 204457416Smarkm continue; 204557416Smarkm if (line[0] != ' ' && line[0] != '\t' && line[0] != '\n') 204657416Smarkm continue; 204757416Smarkm gotmachine = 1; 204857416Smarkm } 204957416Smarkm makeargv(); 205057416Smarkm if (margv[0] == 0) 205157416Smarkm continue; 205257416Smarkm c = getcmd(margv[0]); 205357416Smarkm if (Ambiguous(c)) { 205457416Smarkm printf("?Ambiguous command: %s\r\n", margv[0]); 205557416Smarkm continue; 205657416Smarkm } 205757416Smarkm if (c == 0) { 205857416Smarkm printf("?Invalid command: %s\r\n", margv[0]); 205957416Smarkm continue; 206057416Smarkm } 206157416Smarkm /* 206257416Smarkm * This should never happen... 206357416Smarkm */ 206457416Smarkm if (c->needconnect && !connected) { 206557416Smarkm printf("?Need to be connected first for %s.\r\n", margv[0]); 206657416Smarkm continue; 206757416Smarkm } 206857416Smarkm (*c->handler)(margc, margv); 206957416Smarkm } 207057416Smarkm fclose(rcfile); 207157416Smarkm} 207257416Smarkm 207357416Smarkmint 207457416Smarkmtn(int argc, char **argv) 207557416Smarkm{ 207657416Smarkm struct servent *sp = 0; 207757416Smarkm char *cmd, *hostp = 0, *portp = 0; 207857416Smarkm char *user = 0; 207957416Smarkm int port = 0; 208057416Smarkm 208157416Smarkm /* clear the socket address prior to use */ 208257416Smarkm 208357416Smarkm if (connected) { 208457416Smarkm printf("?Already connected to %s\r\n", hostname); 208557416Smarkm return 0; 208657416Smarkm } 208757416Smarkm if (argc < 2) { 208857416Smarkm strlcpy(line, "open ", sizeof(line)); 208957416Smarkm printf("(to) "); 209057416Smarkm fgets(&line[strlen(line)], sizeof(line) - strlen(line), stdin); 209157416Smarkm makeargv(); 209257416Smarkm argc = margc; 209357416Smarkm argv = margv; 209457416Smarkm } 209557416Smarkm cmd = *argv; 209657416Smarkm --argc; ++argv; 209757416Smarkm while (argc) { 209857416Smarkm if (strcmp(*argv, "help") == 0 || isprefix(*argv, "?")) 209957416Smarkm goto usage; 210057416Smarkm if (strcmp(*argv, "-l") == 0) { 210157416Smarkm --argc; ++argv; 210257416Smarkm if (argc == 0) 210357416Smarkm goto usage; 210457416Smarkm user = strdup(*argv++); 210557416Smarkm --argc; 210657416Smarkm continue; 210757416Smarkm } 210857416Smarkm if (strcmp(*argv, "-a") == 0) { 210957416Smarkm --argc; ++argv; 211057416Smarkm autologin = 1; 211157416Smarkm continue; 211257416Smarkm } 211357416Smarkm if (hostp == 0) { 211457416Smarkm hostp = *argv++; 211557416Smarkm --argc; 211657416Smarkm continue; 211757416Smarkm } 211857416Smarkm if (portp == 0) { 211957416Smarkm portp = *argv++; 212057416Smarkm --argc; 212157416Smarkm continue; 212257416Smarkm } 212357416Smarkm usage: 212457416Smarkm printf("usage: %s [-l user] [-a] host-name [port]\r\n", cmd); 212557416Smarkm return 0; 212657416Smarkm } 212757416Smarkm if (hostp == 0) 212857416Smarkm goto usage; 212957416Smarkm 213072445Sassar strlcpy (_hostname, hostp, sizeof(_hostname)); 213178527Sassar hostp = _hostname; 213272445Sassar if (hostp[0] == '@' || hostp[0] == '!') { 213372445Sassar char *p; 213472445Sassar hostname = NULL; 213572445Sassar for (p = hostp + 1; *p; p++) { 213672445Sassar if (*p == ',' || *p == '@') 213772445Sassar hostname = p; 213872445Sassar } 213972445Sassar if (hostname == NULL) { 214072445Sassar fprintf(stderr, "%s: bad source route specification\n", hostp); 214172445Sassar return 0; 214272445Sassar } 214372445Sassar *hostname++ = '\0'; 214472445Sassar } else 214572445Sassar hostname = hostp; 214672445Sassar 214757416Smarkm if (portp) { 214857416Smarkm if (*portp == '-') { 214957416Smarkm portp++; 215057416Smarkm telnetport = 1; 215157416Smarkm } else 215257416Smarkm telnetport = 0; 215357416Smarkm port = atoi(portp); 215457416Smarkm if (port == 0) { 215557416Smarkm sp = roken_getservbyname(portp, "tcp"); 215657416Smarkm if (sp) 215757416Smarkm port = sp->s_port; 215857416Smarkm else { 215957416Smarkm printf("%s: bad port number\r\n", portp); 216057416Smarkm return 0; 216157416Smarkm } 216257416Smarkm } else { 216357416Smarkm port = htons(port); 216457416Smarkm } 216557416Smarkm } else { 216657416Smarkm if (sp == 0) { 216757416Smarkm sp = roken_getservbyname("telnet", "tcp"); 216857416Smarkm if (sp == 0) { 216957416Smarkm fprintf(stderr, "telnet: tcp/telnet: unknown service\r\n"); 217057416Smarkm return 0; 217157416Smarkm } 217257416Smarkm port = sp->s_port; 217357416Smarkm } 217457416Smarkm telnetport = 1; 217557416Smarkm } 217657416Smarkm 217757416Smarkm { 217857416Smarkm struct addrinfo *ai, *a, hints; 217957416Smarkm int error; 218057416Smarkm char portstr[NI_MAXSERV]; 218157416Smarkm 218257416Smarkm memset (&hints, 0, sizeof(hints)); 218357416Smarkm hints.ai_socktype = SOCK_STREAM; 218457416Smarkm hints.ai_protocol = IPPROTO_TCP; 218557416Smarkm hints.ai_flags = AI_CANONNAME; 218657416Smarkm 218757416Smarkm snprintf (portstr, sizeof(portstr), "%u", ntohs(port)); 218857416Smarkm 218972445Sassar error = getaddrinfo (hostname, portstr, &hints, &ai); 219057416Smarkm if (error) { 219172445Sassar fprintf (stderr, "%s: %s\r\n", hostname, gai_strerror (error)); 219257416Smarkm return 0; 219357416Smarkm } 219457416Smarkm 219557416Smarkm for (a = ai; a != NULL && connected == 0; a = a->ai_next) { 219657416Smarkm char addrstr[256]; 219757416Smarkm 219857416Smarkm if (a->ai_canonname != NULL) 219957416Smarkm strlcpy (_hostname, a->ai_canonname, sizeof(_hostname)); 220057416Smarkm 220157416Smarkm if (getnameinfo (a->ai_addr, a->ai_addrlen, 220257416Smarkm addrstr, sizeof(addrstr), 220357416Smarkm NULL, 0, NI_NUMERICHOST) != 0) 220457416Smarkm strlcpy (addrstr, "unknown address", sizeof(addrstr)); 220557416Smarkm 220657416Smarkm printf("Trying %s...\r\n", addrstr); 220757416Smarkm 220857416Smarkm net = socket (a->ai_family, a->ai_socktype, a->ai_protocol); 220957416Smarkm if (net < 0) { 221072445Sassar warn ("socket"); 221157416Smarkm continue; 221257416Smarkm } 221372445Sassar 221457416Smarkm#if defined(IP_OPTIONS) && defined(IPPROTO_IP) && defined(HAVE_SETSOCKOPT) 221572445Sassar if (hostp[0] == '@' || hostp[0] == '!') { 221672445Sassar char *srp = 0; 221772445Sassar int srlen; 221872445Sassar int proto, opt; 221972445Sassar 222072445Sassar if ((srlen = sourceroute(a, hostp, &srp, &proto, &opt)) < 0) { 222172445Sassar (void) NetClose(net); 222272445Sassar net = -1; 222372445Sassar continue; 222472445Sassar } 222572445Sassar if (srp && setsockopt(net, proto, opt, srp, srlen) < 0) 222672445Sassar perror("setsockopt (source route)"); 222772445Sassar } 222857416Smarkm#endif 222972445Sassar 223057416Smarkm#if defined(IPPROTO_IP) && defined(IP_TOS) 223157419Smarkm if (a->ai_family == AF_INET) { 223257416Smarkm# if defined(HAVE_GETTOSBYNAME) 223357416Smarkm struct tosent *tp; 223457416Smarkm if (tos < 0 && (tp = gettosbyname("telnet", "tcp"))) 223557416Smarkm tos = tp->t_tos; 223657416Smarkm# endif 223757416Smarkm if (tos < 0) 223857416Smarkm tos = 020; /* Low Delay bit */ 223957416Smarkm if (tos 224057416Smarkm && (setsockopt(net, IPPROTO_IP, IP_TOS, 224157416Smarkm (void *)&tos, sizeof(int)) < 0) 224257416Smarkm && (errno != ENOPROTOOPT)) 224357416Smarkm perror("telnet: setsockopt (IP_TOS) (ignored)"); 224457416Smarkm } 224557416Smarkm#endif /* defined(IPPROTO_IP) && defined(IP_TOS) */ 224657416Smarkm if (debug && SetSockOpt(net, SOL_SOCKET, SO_DEBUG, 1) < 0) { 224757416Smarkm perror("setsockopt (SO_DEBUG)"); 224857416Smarkm } 224957416Smarkm 225057416Smarkm if (connect (net, a->ai_addr, a->ai_addrlen) < 0) { 225157416Smarkm fprintf (stderr, "telnet: connect to address %s: %s\n", 225257416Smarkm addrstr, strerror(errno)); 225357416Smarkm NetClose(net); 225457416Smarkm if (a->ai_next != NULL) { 225557416Smarkm continue; 225657416Smarkm } else { 225757416Smarkm freeaddrinfo (ai); 225857416Smarkm return 0; 225957416Smarkm } 226057416Smarkm } 226157416Smarkm ++connected; 226257416Smarkm#if defined(AUTHENTICATION) || defined(ENCRYPTION) 226357416Smarkm auth_encrypt_connect(connected); 226457416Smarkm#endif 226557416Smarkm } 226672445Sassar freeaddrinfo (ai); 226772445Sassar if (connected == 0) 226872445Sassar return 0; 226957416Smarkm } 227057416Smarkm cmdrc(hostp, hostname); 2271102644Snectar set_forward_options(); 227257416Smarkm if (autologin && user == NULL) 227357416Smarkm user = (char *)get_default_username (); 227457416Smarkm if (user) { 227557416Smarkm env_define((unsigned char *)"USER", (unsigned char *)user); 227657416Smarkm env_export((unsigned char *)"USER"); 227757416Smarkm } 227857416Smarkm call(status, "status", "notmuch", 0); 227957416Smarkm if (setjmp(peerdied) == 0) 228057416Smarkm my_telnet((char *)user); 228157416Smarkm NetClose(net); 228257416Smarkm ExitString("Connection closed by foreign host.\r\n",1); 228357416Smarkm /*NOTREACHED*/ 228457416Smarkm return 0; 228557416Smarkm} 228657416Smarkm 228757416Smarkm#define HELPINDENT ((int)sizeof ("connect")) 228857416Smarkm 228957416Smarkmstatic char 229057416Smarkm openhelp[] = "connect to a site", 229157416Smarkm closehelp[] = "close current connection", 229257416Smarkm logouthelp[] = "forcibly logout remote user and close the connection", 229357416Smarkm quithelp[] = "exit telnet", 229457416Smarkm statushelp[] = "print status information", 229557416Smarkm helphelp[] = "print help information", 229657416Smarkm sendhelp[] = "transmit special characters ('send ?' for more)", 229757416Smarkm sethelp[] = "set operating parameters ('set ?' for more)", 229857416Smarkm unsethelp[] = "unset operating parameters ('unset ?' for more)", 229957416Smarkm togglestring[] ="toggle operating parameters ('toggle ?' for more)", 230057416Smarkm slchelp[] = "change state of special charaters ('slc ?' for more)", 230157416Smarkm displayhelp[] = "display operating parameters", 230257416Smarkm#if defined(AUTHENTICATION) 230357416Smarkm authhelp[] = "turn on (off) authentication ('auth ?' for more)", 230457416Smarkm#endif 230557416Smarkm#if defined(ENCRYPTION) 230657416Smarkm encrypthelp[] = "turn on (off) encryption ('encrypt ?' for more)", 230757416Smarkm#endif 230857416Smarkm zhelp[] = "suspend telnet", 230957416Smarkm shellhelp[] = "invoke a subshell", 231057416Smarkm envhelp[] = "change environment variables ('environ ?' for more)", 231157416Smarkm modestring[] = "try to enter line or character mode ('mode ?' for more)"; 231257416Smarkm 231357416Smarkmstatic int help(int argc, char **argv); 231457416Smarkm 231557416Smarkmstatic Command cmdtab[] = { 231657416Smarkm { "close", closehelp, bye, 1 }, 231757416Smarkm { "logout", logouthelp, logout, 1 }, 231857416Smarkm { "display", displayhelp, display, 0 }, 231957416Smarkm { "mode", modestring, modecmd, 0 }, 232057416Smarkm { "open", openhelp, tn, 0 }, 232157416Smarkm { "quit", quithelp, quit, 0 }, 232257416Smarkm { "send", sendhelp, sendcmd, 0 }, 232357416Smarkm { "set", sethelp, setcmd, 0 }, 232457416Smarkm { "unset", unsethelp, unsetcmd, 0 }, 232557416Smarkm { "status", statushelp, status, 0 }, 232657416Smarkm { "toggle", togglestring, toggle, 0 }, 232757416Smarkm { "slc", slchelp, slccmd, 0 }, 232857416Smarkm#if defined(AUTHENTICATION) 232957416Smarkm { "auth", authhelp, auth_cmd, 0 }, 233057416Smarkm#endif 233157416Smarkm#if defined(ENCRYPTION) 233257416Smarkm { "encrypt", encrypthelp, encrypt_cmd, 0 }, 233357416Smarkm#endif 233457416Smarkm { "z", zhelp, telnetsuspend, 0 }, 233557416Smarkm { "!", shellhelp, shell, 0 }, 233657416Smarkm { "environ", envhelp, env_cmd, 0 }, 233757416Smarkm { "?", helphelp, help, 0 }, 233857416Smarkm { 0, 0, 0, 0 } 233957416Smarkm}; 234057416Smarkm 234157416Smarkmstatic char crmodhelp[] = "deprecated command -- use 'toggle crmod' instead"; 234257416Smarkmstatic char escapehelp[] = "deprecated command -- use 'set escape' instead"; 234357416Smarkm 234457416Smarkmstatic Command cmdtab2[] = { 234557416Smarkm { "help", 0, help, 0 }, 234657416Smarkm { "escape", escapehelp, setescape, 0 }, 234757416Smarkm { "crmod", crmodhelp, togcrmod, 0 }, 234857416Smarkm { 0, 0, 0, 0 } 234957416Smarkm}; 235057416Smarkm 235157416Smarkm 235257416Smarkm/* 235357416Smarkm * Call routine with argc, argv set from args (terminated by 0). 235457416Smarkm */ 235557416Smarkm 235657416Smarkmstatic int 235757416Smarkmcall(intrtn_t routine, ...) 235857416Smarkm{ 235957416Smarkm va_list ap; 236057416Smarkm char *args[100]; 236157416Smarkm int argno = 0; 236257416Smarkm 236357416Smarkm va_start(ap, routine); 236457416Smarkm while ((args[argno++] = va_arg(ap, char *)) != 0); 236557416Smarkm va_end(ap); 236657416Smarkm return (*routine)(argno-1, args); 236757416Smarkm} 236857416Smarkm 236957416Smarkm 237057416Smarkmstatic Command 237157416Smarkm*getcmd(char *name) 237257416Smarkm{ 237357416Smarkm Command *cm; 237457416Smarkm 237557416Smarkm if ((cm = (Command *) genget(name, (char **) cmdtab, sizeof(Command)))) 237657416Smarkm return cm; 237757416Smarkm return (Command *) genget(name, (char **) cmdtab2, sizeof(Command)); 237857416Smarkm} 237957416Smarkm 238057416Smarkmvoid 238157416Smarkmcommand(int top, char *tbuf, int cnt) 238257416Smarkm{ 238357416Smarkm Command *c; 238457416Smarkm 238557416Smarkm setcommandmode(); 238657416Smarkm if (!top) { 238757416Smarkm putchar('\n'); 238857416Smarkm } else { 238957416Smarkm signal(SIGINT, SIG_DFL); 239057416Smarkm signal(SIGQUIT, SIG_DFL); 239157416Smarkm } 239257416Smarkm for (;;) { 239357416Smarkm if (rlogin == _POSIX_VDISABLE) 239457416Smarkm printf("%s> ", prompt); 239557416Smarkm if (tbuf) { 239657416Smarkm char *cp; 239757416Smarkm cp = line; 239857416Smarkm while (cnt > 0 && (*cp++ = *tbuf++) != '\n') 239957416Smarkm cnt--; 240057416Smarkm tbuf = 0; 240157416Smarkm if (cp == line || *--cp != '\n' || cp == line) 240257416Smarkm goto getline; 240357416Smarkm *cp = '\0'; 240457416Smarkm if (rlogin == _POSIX_VDISABLE) 240557416Smarkm printf("%s\r\n", line); 240657416Smarkm } else { 240757416Smarkm getline: 240857416Smarkm if (rlogin != _POSIX_VDISABLE) 240957416Smarkm printf("%s> ", prompt); 241057416Smarkm if (fgets(line, sizeof(line), stdin) == NULL) { 241157416Smarkm if (feof(stdin) || ferror(stdin)) { 241257416Smarkm quit(); 241357416Smarkm /*NOTREACHED*/ 241457416Smarkm } 241557416Smarkm break; 241657416Smarkm } 241757416Smarkm } 241857416Smarkm if (line[0] == 0) 241957416Smarkm break; 242057416Smarkm makeargv(); 242157416Smarkm if (margv[0] == 0) { 242257416Smarkm break; 242357416Smarkm } 242457416Smarkm c = getcmd(margv[0]); 242557416Smarkm if (Ambiguous(c)) { 242657416Smarkm printf("?Ambiguous command\r\n"); 242757416Smarkm continue; 242857416Smarkm } 242957416Smarkm if (c == 0) { 243057416Smarkm printf("?Invalid command\r\n"); 243157416Smarkm continue; 243257416Smarkm } 243357416Smarkm if (c->needconnect && !connected) { 243457416Smarkm printf("?Need to be connected first.\r\n"); 243557416Smarkm continue; 243657416Smarkm } 243757416Smarkm if ((*c->handler)(margc, margv)) { 243857416Smarkm break; 243957416Smarkm } 244057416Smarkm } 244157416Smarkm if (!top) { 244257416Smarkm if (!connected) { 244357416Smarkm longjmp(toplevel, 1); 244457416Smarkm /*NOTREACHED*/ 244557416Smarkm } 244657416Smarkm setconnmode(0); 244757416Smarkm } 244857416Smarkm} 244957416Smarkm 245057416Smarkm/* 245157416Smarkm * Help command. 245257416Smarkm */ 245357416Smarkmstatic int 245457416Smarkmhelp(int argc, char **argv) 245557416Smarkm{ 245657416Smarkm Command *c; 245757416Smarkm 245857416Smarkm if (argc == 1) { 245957416Smarkm printf("Commands may be abbreviated. Commands are:\r\n\r\n"); 246057416Smarkm for (c = cmdtab; c->name; c++) 246157416Smarkm if (c->help) { 246257416Smarkm printf("%-*s\t%s\r\n", HELPINDENT, c->name, 246357416Smarkm c->help); 246457416Smarkm } 246557416Smarkm return 0; 246657416Smarkm } 246757416Smarkm while (--argc > 0) { 246857416Smarkm char *arg; 246957416Smarkm arg = *++argv; 247057416Smarkm c = getcmd(arg); 247157416Smarkm if (Ambiguous(c)) 247257416Smarkm printf("?Ambiguous help command %s\r\n", arg); 247357416Smarkm else if (c == (Command *)0) 247457416Smarkm printf("?Invalid help command %s\r\n", arg); 247557416Smarkm else 247657416Smarkm printf("%s\r\n", c->help); 247757416Smarkm } 247857416Smarkm return 0; 247957416Smarkm} 248057416Smarkm 248157416Smarkm 248257416Smarkm#if defined(IP_OPTIONS) && defined(IPPROTO_IP) 248357416Smarkm 248457416Smarkm/* 248557416Smarkm * Source route is handed in as 248672445Sassar * [!]@hop1@hop2...@dst 248757416Smarkm * 248872445Sassar * If the leading ! is present, it is a strict source route, otherwise it is 248972445Sassar * assmed to be a loose source route. Note that leading ! is effective 249072445Sassar * only for IPv4 case. 249172445Sassar * 249257416Smarkm * We fill in the source route option as 249357416Smarkm * hop1,hop2,hop3...dest 249457416Smarkm * and return a pointer to hop1, which will 249557416Smarkm * be the address to connect() to. 249657416Smarkm * 249757416Smarkm * Arguments: 249872445Sassar * ai: The address (by struct addrinfo) for the final destination. 249957416Smarkm * 250072445Sassar * arg: Pointer to route list to decipher 250157416Smarkm * 250272445Sassar * cpp: Pointer to a pointer, so that sourceroute() can return 250372445Sassar * the address of result buffer (statically alloc'ed). 250472445Sassar * 250572445Sassar * protop/optp: 250672445Sassar * Pointer to an integer. The pointed variable 250757416Smarkm * lenp: pointer to an integer that contains the 250857416Smarkm * length of *cpp if *cpp != NULL. 250957416Smarkm * 251057416Smarkm * Return values: 251157416Smarkm * 251272445Sassar * Returns the length of the option pointed to by *cpp. If the 251357416Smarkm * return value is -1, there was a syntax error in the 251472445Sassar * option, either arg contained unknown characters or too many hosts, 251572445Sassar * or hostname cannot be resolved. 251657416Smarkm * 251772445Sassar * The caller needs to pass return value (len), *cpp, *protop and *optp 251872445Sassar * to setsockopt(2). 251957416Smarkm * 252072445Sassar * *cpp: Points to the result buffer. The region is statically 252172445Sassar * allocated by the function. 252257416Smarkm * 252372445Sassar * *protop: 252472445Sassar * protocol # to be passed to setsockopt(2). 252572445Sassar * 252672445Sassar * *optp: option # to be passed to setsockopt(2). 252772445Sassar * 252857416Smarkm */ 252972445Sassarint 253072445Sassarsourceroute(struct addrinfo *ai, 253172445Sassar char *arg, 253272445Sassar char **cpp, 253372445Sassar int *protop, 253472445Sassar int *optp) 253557416Smarkm{ 2536102644Snectar char *cp, *cp2, *lsrp = NULL, *lsrep = NULL; 253772445Sassar struct addrinfo hints, *res; 253872445Sassar int len, error; 253972445Sassar struct sockaddr_in *sin; 254072445Sassar register char c; 254157416Smarkm static char lsr[44]; 254272445Sassar#ifdef INET6 2543102644Snectar struct cmsghdr *cmsg = NULL; 254472445Sassar struct sockaddr_in6 *sin6; 254572445Sassar static char rhbuf[1024]; 254672445Sassar#endif 254757416Smarkm 254857416Smarkm /* 254972445Sassar * Verify the arguments. 255057416Smarkm */ 255172445Sassar if (cpp == NULL) 255272445Sassar return -1; 255357416Smarkm 255457416Smarkm cp = arg; 255557416Smarkm 255672445Sassar *cpp = NULL; 255772445Sassar switch (ai->ai_family) { 255872445Sassar case AF_INET: 255972445Sassar lsrp = lsr; 256072445Sassar lsrep = lsrp + sizeof(lsr); 256172445Sassar 256272445Sassar /* 256372445Sassar * Next, decide whether we have a loose source 256472445Sassar * route or a strict source route, and fill in 256572445Sassar * the begining of the option. 256672445Sassar */ 256772445Sassar if (*cp == '!') { 256872445Sassar cp++; 256972445Sassar *lsrp++ = IPOPT_SSRR; 257072445Sassar } else 257172445Sassar *lsrp++ = IPOPT_LSRR; 257272445Sassar if (*cp != '@') 257372445Sassar return -1; 257472445Sassar lsrp++; /* skip over length, we'll fill it in later */ 257572445Sassar *lsrp++ = 4; 257657416Smarkm cp++; 257772445Sassar *protop = IPPROTO_IP; 257872445Sassar *optp = IP_OPTIONS; 257972445Sassar break; 258072445Sassar#ifdef INET6 258172445Sassar case AF_INET6: 258272445Sassar/* this needs to be updated for rfc2292bis */ 258372445Sassar#ifdef IPV6_PKTOPTIONS 258472445Sassar cmsg = inet6_rthdr_init(rhbuf, IPV6_RTHDR_TYPE_0); 258572445Sassar if (*cp != '@') 258672445Sassar return -1; 258772445Sassar cp++; 258872445Sassar *protop = IPPROTO_IPV6; 258972445Sassar *optp = IPV6_PKTOPTIONS; 259072445Sassar break; 259172445Sassar#else 259272445Sassar return -1; 259372445Sassar#endif 259472445Sassar#endif 259572445Sassar default: 259672445Sassar return -1; 259772445Sassar } 259857416Smarkm 259972445Sassar memset(&hints, 0, sizeof(hints)); 260072445Sassar hints.ai_family = ai->ai_family; 260172445Sassar hints.ai_socktype = SOCK_STREAM; 260257416Smarkm 260357416Smarkm for (c = 0;;) { 260457416Smarkm if (c == ':') 260557416Smarkm cp2 = 0; 260672445Sassar else for (cp2 = cp; (c = *cp2) != '\0'; cp2++) { 260757416Smarkm if (c == ',') { 260857416Smarkm *cp2++ = '\0'; 260957416Smarkm if (*cp2 == '@') 261057416Smarkm cp2++; 261157416Smarkm } else if (c == '@') { 261257416Smarkm *cp2++ = '\0'; 261372445Sassar } 261472445Sassar#if 0 /*colon conflicts with IPv6 address*/ 261572445Sassar else if (c == ':') { 261657416Smarkm *cp2++ = '\0'; 261772445Sassar } 261872445Sassar#endif 261972445Sassar else 262057416Smarkm continue; 262157416Smarkm break; 262257416Smarkm } 262357416Smarkm if (!c) 262457416Smarkm cp2 = 0; 262557416Smarkm 262672445Sassar error = getaddrinfo(cp, NULL, &hints, &res); 262772445Sassar if (error) { 262872445Sassar fprintf(stderr, "%s: %s\n", cp, gai_strerror(error)); 262972445Sassar return -1; 263057416Smarkm } 263172445Sassar if (ai->ai_family != res->ai_family) { 263272445Sassar freeaddrinfo(res); 263372445Sassar return -1; 263472445Sassar } 263572445Sassar if (ai->ai_family == AF_INET) { 263672445Sassar /* 263772445Sassar * Check to make sure there is space for address 263872445Sassar */ 263972445Sassar if (lsrp + 4 > lsrep) { 264072445Sassar freeaddrinfo(res); 264172445Sassar return -1; 264272445Sassar } 264372445Sassar sin = (struct sockaddr_in *)res->ai_addr; 264472445Sassar memcpy(lsrp, &sin->sin_addr, sizeof(struct in_addr)); 264572445Sassar lsrp += sizeof(struct in_addr); 264672445Sassar } 264772445Sassar#ifdef INET6 264872445Sassar else if (ai->ai_family == AF_INET6) { 264972445Sassar sin6 = (struct sockaddr_in6 *)res->ai_addr; 265072445Sassar inet6_rthdr_add(cmsg, &sin6->sin6_addr, 265172445Sassar IPV6_RTHDR_LOOSE); 265272445Sassar } 265372445Sassar#endif 265472445Sassar else { 265572445Sassar freeaddrinfo(res); 265672445Sassar return -1; 265772445Sassar } 265872445Sassar freeaddrinfo(res); 265957416Smarkm if (cp2) 266057416Smarkm cp = cp2; 266157416Smarkm else 266257416Smarkm break; 266372445Sassar } 266472445Sassar if (ai->ai_family == AF_INET) { 266572445Sassar /* record the last hop */ 266657416Smarkm if (lsrp + 4 > lsrep) 266772445Sassar return -1; 266872445Sassar sin = (struct sockaddr_in *)ai->ai_addr; 266972445Sassar memcpy(lsrp, &sin->sin_addr, sizeof(struct in_addr)); 267072445Sassar lsrp += sizeof(struct in_addr); 267172445Sassar#ifndef sysV88 267272445Sassar lsr[IPOPT_OLEN] = lsrp - lsr; 267372445Sassar if (lsr[IPOPT_OLEN] <= 7 || lsr[IPOPT_OLEN] > 40) 267472445Sassar return -1; 267572445Sassar *lsrp++ = IPOPT_NOP; /*32bit word align*/ 267672445Sassar len = lsrp - lsr; 267772445Sassar *cpp = lsr; 267872445Sassar#else 267972445Sassar ipopt.io_len = lsrp - lsr; 268072445Sassar if (ipopt.io_len <= 5) /*is 3 better?*/ 268172445Sassar return -1; 268272445Sassar *cpp = (char 8)&ipopt; 268372445Sassar#endif 268457416Smarkm } 268572445Sassar#ifdef INET6 268672445Sassar else if (ai->ai_family == AF_INET6) { 268772445Sassar inet6_rthdr_lasthop(cmsg, IPV6_RTHDR_LOOSE); 268872445Sassar len = cmsg->cmsg_len; 268972445Sassar *cpp = rhbuf; 269057416Smarkm } 269172445Sassar#endif 269272445Sassar else 269372445Sassar return -1; 269472445Sassar return len; 269557416Smarkm} 269657416Smarkm#endif 2697