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-rw-r--r--src/protocoltelnet.cpp316
1 files changed, 0 insertions, 316 deletions
diff --git a/src/protocoltelnet.cpp b/src/protocoltelnet.cpp
deleted file mode 100644
index b169a51..0000000
--- a/src/protocoltelnet.cpp
+++ /dev/null
@@ -1,316 +0,0 @@
1#include "protocoltelnet.h"
2#include <string.h>
3
4ProtocolTelnet::ProtocolTelnet()
5{
6 nTermType = termUnInited;
7 bEchoOn = true;
8}
9
10ProtocolTelnet::~ProtocolTelnet()
11{
12}
13
14bool ProtocolTelnet::onNewConnection()
15{
16 Connection *pCon = getConnection();
17
18 pCon->appendOutput( (char)IAC );
19 pCon->appendOutput( (char)WILL );
20 pCon->appendOutput( (char)SUPPRESSGA );
21
22 pCon->appendOutput( (char)IAC );
23 pCon->appendOutput( (char)DO );
24 pCon->appendOutput( (char)SUPPRESSGA );
25
26 pCon->appendOutput( (char)IAC );
27 pCon->appendOutput( (char)DONT );
28 pCon->appendOutput( (char)TERMTYPE );
29
30// pCon->appendOutput( IAC );
31// pCon->appendOutput( SB );
32// pCon->appendOutput( TERMTYPE );
33// pCon->appendOutput( 1 );
34// pCon->appendOutput( IAC );
35// pCon->appendOutput( SE );
36
37 pCon->appendOutput( (char)IAC );
38 pCon->appendOutput( (char)DONT );
39 pCon->appendOutput( (char)ECHO );
40
41 pCon->appendOutput( (char)IAC );
42 pCon->appendOutput( (char)WILL );
43 pCon->appendOutput( (char)ECHO );
44
45// 255(IAC),251(WILL),3
46 return true;
47}
48
49bool ProtocolTelnet::onNewData()
50{
51 Connection *pCon = getConnection();
52 if( !pCon->hasInput() )
53 {
54 return true;
55 }
56
57 int nInSize = pCon->getInputAmnt();
58 char *lpInStr = (char *)pCon->getInput();
59
60 // Here we interpret the basic commands and un-encapsulate them, so to
61 // speak. We'll allow this, even if the terminal is in raw mode, we
62 // just won't send anything in response...
63 for( int j = 0; j < nInSize; j++ )
64 {
65 switch( (unsigned char)lpInStr[j] )
66 {
67 case '\r':
68 fbEdited.appendData('\n');
69 if( bEchoOn ) pCon->appendOutput("\n\r");
70 break;
71
72 case '\n':
73 break;
74
75 case '\177': // backspace
76 if( fbEdited.getLength() > 0 )
77 {
78 fbEdited.usedData( -1 ); // Delete one char from the end
79 if( bEchoOn ) pCon->appendOutput(ESC "[D"); // Move the cursor back one
80 if( bEchoOn ) pCon->appendOutput(ESC "[P"); // Delete one character
81 }
82 break;
83
84 case '\x1B': // escape sequence
85 if( (unsigned char)lpInStr[j+1] == '[' )
86 {
87 switch( (unsigned char)lpInStr[j+2] )
88 {
89 case 'A': // Up
90 break;
91
92 case 'B': // Down
93 break;
94
95 case 'C': // Right
96 break;
97
98 case 'D': // Left
99 break;
100 }
101 j+=2;
102 }
103 break;
104
105 case 0: // NOP: No operation
106 break;
107
108 case IAC: // IAC: Interpret as command
109 switch( lpInStr[j+1] )
110 {
111 case SE: // SE: End of subnegotiation parameters.
112 break;
113
114 case NOP: // NOP: No operation
115 break;
116
117 case DM: // DM: Data mark. Indicates the position of a Synch event within the data stream. This should always be accompanied by a TCP urgent notification.
118 break;
119
120 case BRK: // BRK: Break. Indicates that the "break" or "attention" key was hit.
121 break;
122
123 case IP: // IP: Suspend, interrupt or abort the process to which the NVT is connected.
124 break;
125
126 case AO: // AO: Abort output. Allows the current process to run to completion but do not send its output to the user.
127 break;
128
129 case AYT: // AYT: Are you there. Send back to the NVT some visible evidence that the AYT was received.
130 break;
131
132 case EC: // EC: Erase character. The receiver should delete the last preceding undeleted character from the data stream.
133 break;
134
135 case EL: // EL: Erase line. Delete characters from the data stream back to but not including the previous CRLF.
136 break;
137
138 case GA: // GA: Go ahead. Used, under certain circumstances, to tell the other end that it can transmit.
139 break;
140
141 case SB: // SB: Subnegotiation of the indicated option follows.
142 switch( lpInStr[j+2] )
143 {
144 case TERMTYPE:
145 if( lpInStr[j+3] == 0 )
146 {
147 for( int k = 0; j+4+k < nInSize; k++ )
148 {
149 if( (unsigned char)lpInStr[j+4+k] == IAC &&
150 (unsigned char)lpInStr[j+5+k] == SE )
151 {
152 lpInStr[j+4+k] = 0;
153 //@TODO: Do something with the term type...
154 printf("Term type: %s\n", &lpInStr[j+4] );
155 j += 5+k;
156 }
157 }
158 }
159 else
160 {
161 }
162 break;
163
164 default:
165 //printf("unknown subnegotiation parameters! (%d)\n", lpInStr[j+2] );
166 break;
167 }
168 break;
169
170 case WILL: // WILL: Indicates the desire to begin performing
171 switch( lpInStr[j+2] )
172 {
173 case SUPPRESSGA:
174 j += 2;
175// pCon->usedInput( 3 );
176 break;
177
178 case TERMTYPE:
179 j += 2;
180// pCon->usedInput( 3 );
181 break;
182
183 case ECHO:
184 j += 2;
185// pCon->usedInput( 3 );
186 break;
187
188 case NAWS:
189 default:
190 pCon->appendOutput( (char)ESC[0] );
191 pCon->appendOutput( (char)DONT );
192 pCon->appendOutput( lpInStr[j+2] );
193 //printf("unknown will command used! (%d)\n", lpInStr[j+2] );
194 j += 2;
195 break;
196 }
197 break;
198
199 case WONT: // WONT: Indicates the refusal to perform
200 switch( lpInStr[j+2] )
201 {
202 case ECHO:
203 j += 2;
204// pCon->usedInput( 3 );
205 break;
206
207 default:
208 //printf("unknown wont command used! (%d)\n", lpInStr[j+2] );
209 j += 2;
210 break;
211 }
212 break;
213
214 case DO: // DO: Indicates the request that the other party perform
215 switch( lpInStr[j+2] )
216 {
217 case ECHO:
218 j += 2;
219 break;
220
221 case SUPPRESSGA:
222 j += 2;
223 break;
224
225 default:
226 pCon->appendOutput( (char)ESC[0] );
227 pCon->appendOutput( (char)DONT );
228 pCon->appendOutput( lpInStr[j+2] );
229 //printf("unknown do command used! (%d)\n", lpInStr[j+2] );
230 j += 2;
231 break;
232 }
233// pCon->usedInput( 3 );
234 break;
235
236 case DONT: // DONT: Indicates the demand that the other party stop performing
237 switch( lpInStr[j+2] )
238 {
239 case ECHO:
240 j += 2;
241// pCon->usedInput( 3 );
242 break;
243
244 default:
245 printf("unknown dont command used! (%d)\n", lpInStr[j+2] );
246 j += 2;
247 break;
248 }
249 break;
250 }
251 break;
252
253 default:
254 fbEdited.appendData( lpInStr[j] );
255 if( bEchoOn ) pCon->appendOutput( lpInStr[j] );
256 break;
257 }
258 }
259
260 pCon->usedInput( pCon->getInputAmnt() );
261
262 return true;
263}
264
265char *ProtocolTelnet::getLine( bool bFullOnly )
266{
267 int i = fbEdited.findChar('\n');
268
269 if( i < 0 )
270 {
271 if( bFullOnly == false )
272 {
273 i = fbEdited.getLength();
274 }
275 else
276 {
277 return NULL;
278 }
279 }
280
281 char *lpStr = new char[i+1];
282 strncpy( lpStr, fbEdited.getData(), i );
283 lpStr[i] = '\0';
284
285 fbEdited.usedData( i+1 );
286
287 return lpStr;
288}
289
290char *ProtocolTelnet::peekLine( bool bFullOnly )
291{
292 int i = fbEdited.findChar('\n');
293
294 if( i < 0 )
295 {
296 if( bFullOnly == false )
297 {
298 i = fbEdited.getLength();
299 }
300 else
301 {
302 return NULL;
303 }
304 }
305
306 char *lpStr = new char[i+1];
307 strncpy( lpStr, fbEdited.getData(), i );
308 lpStr[i] = '\0';
309
310 return lpStr;
311}
312
313void ProtocolTelnet::setEcho( bool bEchoOn )
314{
315 this->bEchoOn = bEchoOn;
316}
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