1 /* 2 * Copyright (c) 1989, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include "telnetd.h" 35 36 RCSID("$Id$"); 37 38 /* 39 * local variables 40 */ 41 int def_tspeed = -1, def_rspeed = -1; 42 #ifdef TIOCSWINSZ 43 int def_row = 0, def_col = 0; 44 #endif 45 46 /* 47 * flowstat 48 * 49 * Check for changes to flow control 50 */ 51 void 52 flowstat(void) 53 { 54 if (his_state_is_will(TELOPT_LFLOW)) { 55 if (tty_flowmode() != flowmode) { 56 flowmode = tty_flowmode(); 57 output_data("%c%c%c%c%c%c", 58 IAC, SB, TELOPT_LFLOW, 59 flowmode ? LFLOW_ON : LFLOW_OFF, 60 IAC, SE); 61 } 62 if (tty_restartany() != restartany) { 63 restartany = tty_restartany(); 64 output_data("%c%c%c%c%c%c", 65 IAC, SB, TELOPT_LFLOW, 66 restartany ? LFLOW_RESTART_ANY 67 : LFLOW_RESTART_XON, 68 IAC, SE); 69 } 70 } 71 } 72 73 /* 74 * clientstat 75 * 76 * Process linemode related requests from the client. 77 * Client can request a change to only one of linemode, editmode or slc's 78 * at a time, and if using kludge linemode, then only linemode may be 79 * affected. 80 */ 81 void 82 clientstat(int code, int parm1, int parm2) 83 { 84 /* 85 * Get a copy of terminal characteristics. 86 */ 87 init_termbuf(); 88 89 /* 90 * Process request from client. code tells what it is. 91 */ 92 switch (code) { 93 case TELOPT_NAWS: 94 #ifdef TIOCSWINSZ 95 { 96 struct winsize ws; 97 98 def_col = parm1; 99 def_row = parm2; 100 101 /* 102 * Change window size as requested by client. 103 */ 104 105 ws.ws_col = parm1; 106 ws.ws_row = parm2; 107 ioctl(ourpty, TIOCSWINSZ, (char *)&ws); 108 } 109 #endif /* TIOCSWINSZ */ 110 111 break; 112 113 case TELOPT_TSPEED: 114 { 115 def_tspeed = parm1; 116 def_rspeed = parm2; 117 /* 118 * Change terminal speed as requested by client. 119 * We set the receive speed first, so that if we can't 120 * store seperate receive and transmit speeds, the transmit 121 * speed will take precedence. 122 */ 123 tty_rspeed(parm2); 124 tty_tspeed(parm1); 125 set_termbuf(); 126 127 break; 128 129 } /* end of case TELOPT_TSPEED */ 130 131 default: 132 /* What? */ 133 break; 134 } /* end of switch */ 135 136 netflush(); 137 138 } 139