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33 * @(#)terminal.c 8.2 (Berkeley) 2/16/95
34 * $FreeBSD: src/crypto/telnet/telnet/terminal.c,v 1.2.8.2 2002/04/13 10:59:08 markm Exp $
35 * $DragonFly: src/crypto/telnet/telnet/terminal.c,v 1.2 2003/06/17 04:24:37 dillon Exp $
38 #include <arpa/telnet.h>
39 #include <sys/types.h>
48 #include <libtelnet/encrypt.h>
51 Ring ttyoring
, ttyiring
;
52 unsigned char ttyobuf
[2*BUFSIZ
], ttyibuf
[BUFSIZ
];
54 int termdata
; /* Debugging flag */
61 cc_t termLiteralNextChar
;
93 * initialize the terminal data structures.
99 if (ring_init(&ttyoring
, ttyobuf
, sizeof ttyobuf
) != 1) {
102 if (ring_init(&ttyiring
, ttyibuf
, sizeof ttyibuf
) != 1) {
105 autoflush
= TerminalAutoFlush();
109 * Send as much data as possible to the terminal.
112 * -1: No useful work done, data waiting to go out.
113 * 0: No data was waiting, so nothing was done.
114 * 1: All waiting data was written out.
115 * n: All data - n was written out.
123 n0
= ring_full_count(&ttyoring
);
124 if ((n1
= n
= ring_full_consecutive(&ttyoring
)) > 0) {
126 TerminalFlushOutput();
127 /* we leave 'n' alone! */
129 n
= TerminalWrite(ttyoring
.consume
, n
);
134 Dump('>', ttyoring
.consume
, n
);
137 * If we wrote everything, and the full count is
138 * larger than what we wrote, then write the
139 * rest of the buffer.
141 if (n1
== n
&& n0
> n
) {
144 n1
= TerminalWrite(ttyoring
.bottom
, n1
);
148 ring_consumed(&ttyoring
, n
);
162 * These routines decides on what the mode should be (based on the values
163 * of various global variables).
172 #ifdef KLUDGELINEMODE
173 extern int kludgelinemode
;
176 if (my_want_state_is_dont(TELOPT_ECHO
))
182 if (my_want_state_is_will(TELOPT_BINARY
))
185 if (his_want_state_is_will(TELOPT_BINARY
))
188 #ifdef KLUDGELINEMODE
189 if (kludgelinemode
) {
190 if (my_want_state_is_dont(TELOPT_SGA
)) {
191 mode
|= (MODE_TRAPSIG
|MODE_EDIT
);
192 if (dontlecho
&& (clocks
.echotoggle
> clocks
.modenegotiated
)) {
199 if (my_want_state_is_will(TELOPT_LINEMODE
))
205 setconnmode(int force
)
208 static int enc_passwd
= 0;
209 #endif /* ENCRYPTION */
212 newmode
= getconnmode()|(force
?MODE_FORCE
:0);
214 TerminalNewMode(newmode
);
217 if ((newmode
& (MODE_ECHO
|MODE_EDIT
)) == MODE_EDIT
) {
218 if (my_want_state_is_will(TELOPT_ENCRYPT
)
219 && (enc_passwd
== 0) && !encrypt_output
) {
220 encrypt_request_start(0, 0);
225 encrypt_request_end();
229 #endif /* ENCRYPTION */