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34 #include "telnet_locl.h"
36 RCSID("$Id: terminal.c,v 1.11 2001/03/06 20:10:14 assar Exp $");
38 Ring ttyoring, ttyiring;
39 unsigned char ttyobuf[2*BUFSIZ], ttyibuf[BUFSIZ];
41 int termdata; /* Debugging flag */
47 cc_t termLiteralNextChar;
75 * initialize the terminal data structures.
81 if (ring_init(&ttyoring, ttyobuf, sizeof ttyobuf) != 1) {
84 if (ring_init(&ttyiring, ttyibuf, sizeof ttyibuf) != 1) {
87 autoflush = TerminalAutoFlush();
92 * Send as much data as possible to the terminal.
95 * -1: No useful work done, data waiting to go out.
96 * 0: No data was waiting, so nothing was done.
97 * 1: All waiting data was written out.
98 * n: All data - n was written out.
107 n0 = ring_full_count(&ttyoring);
108 if ((n1 = n = ring_full_consecutive(&ttyoring)) > 0) {
110 TerminalFlushOutput();
111 /* we leave 'n' alone! */
113 n = TerminalWrite((char *)ttyoring.consume, n);
118 Dump('>', ttyoring.consume, n);
121 * If we wrote everything, and the full count is
122 * larger than what we wrote, then write the
123 * rest of the buffer.
125 if (n1 == n && n0 > n) {
128 n1 = TerminalWrite((char *)ttyoring.bottom, n1);
132 ring_consumed(&ttyoring, n);
146 * These routines decides on what the mode should be (based on the values
147 * of various global variables).
156 if (my_want_state_is_dont(TELOPT_ECHO))
162 if ((eight & 1) || my_want_state_is_will(TELOPT_BINARY))
167 if (his_want_state_is_will(TELOPT_BINARY))
170 #ifdef KLUDGELINEMODE
171 if (kludgelinemode) {
172 if (my_want_state_is_dont(TELOPT_SGA)) {
173 mode |= (MODE_TRAPSIG|MODE_EDIT);
174 if (dontlecho && (clocks.echotoggle > clocks.modenegotiated)) {
181 if (my_want_state_is_will(TELOPT_LINEMODE))
191 static int enc_passwd = 0;
195 newmode = getconnmode()|(force?MODE_FORCE:0);
197 TerminalNewMode(newmode);
200 if ((newmode & (MODE_ECHO|MODE_EDIT)) == MODE_EDIT) {
201 if (my_want_state_is_will(TELOPT_ENCRYPT)
202 && (enc_passwd == 0) && !encrypt_output) {
203 encrypt_request_start(0, 0);
208 encrypt_request_end();