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Lines 1131-1136
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| 1131 |
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1131 |
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| 1132 |
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1132 |
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| 1133 |
unsigned char slc_reply[128]; |
1133 |
unsigned char slc_reply[128]; |
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|
1134 |
unsigned char const * const slc_reply_eom = &slc_reply[sizeof(slc_reply)]; |
| 1134 |
unsigned char *slc_replyp; |
1135 |
unsigned char *slc_replyp; |
| 1135 |
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1136 |
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| 1136 |
void |
1137 |
void |
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Lines 1146-1151
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| 1146 |
void |
1147 |
void |
| 1147 |
slc_add_reply(unsigned char func, unsigned char flags, cc_t value) |
1148 |
slc_add_reply(unsigned char func, unsigned char flags, cc_t value) |
| 1148 |
{ |
1149 |
{ |
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|
1150 |
/* A sequence of up to 6 bytes my be written for this member of the SLC |
| 1151 |
* suboption list by this function. The end of negotiation command, |
| 1152 |
* which is written by slc_end_reply(), will require 2 additional |
| 1153 |
* bytes. Do not proceed unless there is sufficient space for these |
| 1154 |
* items. |
| 1155 |
*/ |
| 1156 |
if (&slc_replyp[6+2] > slc_reply_eom) |
| 1157 |
return; |
| 1149 |
if ((*slc_replyp++ = func) == IAC) |
1158 |
if ((*slc_replyp++ = func) == IAC) |
| 1150 |
*slc_replyp++ = IAC; |
1159 |
*slc_replyp++ = IAC; |
| 1151 |
if ((*slc_replyp++ = flags) == IAC) |
1160 |
if ((*slc_replyp++ = flags) == IAC) |
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Lines 1159-1164
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| 1159 |
{ |
1168 |
{ |
| 1160 |
int len; |
1169 |
int len; |
| 1161 |
|
1170 |
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|
|
1171 |
/* The end of negotiation command requires 2 bytes. */ |
| 1172 |
if (&slc_replyp[2] > slc_reply_eom) |
| 1173 |
return; |
| 1174 |
|
| 1162 |
*slc_replyp++ = IAC; |
1175 |
*slc_replyp++ = IAC; |
| 1163 |
*slc_replyp++ = SE; |
1176 |
*slc_replyp++ = SE; |
| 1164 |
len = slc_replyp - slc_reply; |
1177 |
len = slc_replyp - slc_reply; |
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Lines 1236-1243
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| 1236 |
} |
1249 |
} |
| 1237 |
} |
1250 |
} |
| 1238 |
|
1251 |
|
| 1239 |
#define OPT_REPLY_SIZE 256 |
1252 |
#define OPT_REPLY_SIZE (2 * SUBBUFSIZE) |
| 1240 |
unsigned char *opt_reply; |
1253 |
unsigned char *opt_reply = NULL; |
| 1241 |
unsigned char *opt_replyp; |
1254 |
unsigned char *opt_replyp; |
| 1242 |
unsigned char *opt_replyend; |
1255 |
unsigned char *opt_replyend; |
| 1243 |
|
1256 |
|
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Lines 1298-1305
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| 1298 |
return; |
1311 |
return; |
| 1299 |
} |
1312 |
} |
| 1300 |
vp = env_getvalue(ep); |
1313 |
vp = env_getvalue(ep); |
| 1301 |
if (opt_replyp + (vp ? strlen((char *)vp) : 0) + |
1314 |
if (opt_replyp + (vp ? 2 * strlen((char *)vp) : 0) + |
| 1302 |
strlen((char *)ep) + 6 > opt_replyend) |
1315 |
2 * strlen((char *)ep) + 6 > opt_replyend) |
| 1303 |
{ |
1316 |
{ |
| 1304 |
int len; |
1317 |
int len; |
| 1305 |
unsigned char *p; |
1318 |
unsigned char *p; |
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Lines 1323-1328
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| 1323 |
*opt_replyp++ = ENV_USERVAR; |
1336 |
*opt_replyp++ = ENV_USERVAR; |
| 1324 |
for (;;) { |
1337 |
for (;;) { |
| 1325 |
while ((c = *ep++)) { |
1338 |
while ((c = *ep++)) { |
|
|
1339 |
if (opt_replyp + (2 + 2) > opt_replyend) |
| 1340 |
return; |
| 1326 |
switch(c&0xff) { |
1341 |
switch(c&0xff) { |
| 1327 |
case IAC: |
1342 |
case IAC: |
| 1328 |
*opt_replyp++ = IAC; |
1343 |
*opt_replyp++ = IAC; |
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Lines 1337-1342
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| 1337 |
*opt_replyp++ = c; |
1352 |
*opt_replyp++ = c; |
| 1338 |
} |
1353 |
} |
| 1339 |
if ((ep = vp)) { |
1354 |
if ((ep = vp)) { |
|
|
1355 |
if (opt_replyp + (1 + 2 + 2) > opt_replyend) |
| 1356 |
return; |
| 1340 |
*opt_replyp++ = ENV_VALUE; |
1357 |
*opt_replyp++ = ENV_VALUE; |
| 1341 |
vp = NULL; |
1358 |
vp = NULL; |
| 1342 |
} else |
1359 |
} else |
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Lines 1361-1367
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| 1361 |
{ |
1378 |
{ |
| 1362 |
int len; |
1379 |
int len; |
| 1363 |
|
1380 |
|
| 1364 |
len = opt_replyp - opt_reply + 2; |
1381 |
if (opt_replyp + 2 > opt_replyend) |
|
|
1382 |
return; |
| 1383 |
len = opt_replyp + 2 - opt_reply; |
| 1384 |
|
| 1365 |
if (emptyok || len > 6) { |
1385 |
if (emptyok || len > 6) { |
| 1366 |
*opt_replyp++ = IAC; |
1386 |
*opt_replyp++ = IAC; |
| 1367 |
*opt_replyp++ = SE; |
1387 |
*opt_replyp++ = SE; |
