Commit | Line | Data |
---|---|---|
897ce52e | 1 | /* |
7a26b73d | 2 | * Copyright (c) 1988, 1990 Regents of the University of California. |
897ce52e KB |
3 | * All rights reserved. |
4 | * | |
cb956e54 | 5 | * %sccs.include.redist.c% |
897ce52e KB |
6 | */ |
7 | ||
8 | #ifndef lint | |
8832c633 | 9 | static char sccsid[] = "@(#)sys_bsd.c 5.3 (Berkeley) %G%"; |
897ce52e KB |
10 | #endif /* not lint */ |
11 | ||
e767b7ab GM |
12 | /* |
13 | * The following routines try to encapsulate what is system dependent | |
14 | * (at least between 4.x and dos) which is used in telnet.c. | |
15 | */ | |
16 | ||
e767b7ab | 17 | |
344def17 | 18 | #include <fcntl.h> |
115a5494 | 19 | #include <sys/types.h> |
e767b7ab | 20 | #include <sys/time.h> |
b307f09e | 21 | #include <sys/socket.h> |
e767b7ab | 22 | #include <signal.h> |
b307f09e | 23 | #include <errno.h> |
6055a9f6 | 24 | #include <arpa/telnet.h> |
e767b7ab | 25 | |
115a5494 GM |
26 | #include "ring.h" |
27 | ||
807a3a7d GM |
28 | #include "fdset.h" |
29 | ||
e767b7ab GM |
30 | #include "defines.h" |
31 | #include "externs.h" | |
32 | #include "types.h" | |
33 | ||
7a26b73d | 34 | #if defined(CRAY) || (defined(USE_TERMIO) && !defined(SYSV_TERMIO)) |
87b60187 PB |
35 | #define SIG_FUNC_RET void |
36 | #else | |
37 | #define SIG_FUNC_RET int | |
38 | #endif | |
39 | ||
e767b7ab | 40 | int |
b307f09e GM |
41 | tout, /* Output file descriptor */ |
42 | tin, /* Input file descriptor */ | |
4ad36dea | 43 | net; |
e767b7ab | 44 | |
6055a9f6 PB |
45 | #ifndef USE_TERMIO |
46 | struct tchars otc = { 0 }, ntc = { 0 }; | |
47 | struct ltchars oltc = { 0 }, nltc = { 0 }; | |
48 | struct sgttyb ottyb = { 0 }, nttyb = { 0 }; | |
6570c863 | 49 | int olmode = 0; |
7a26b73d PB |
50 | # define cfgetispeed(ptr) (ptr)->sg_ispeed |
51 | # define cfgetospeed(ptr) (ptr)->sg_ospeed | |
52 | # define old_tc ottyb | |
6055a9f6 | 53 | |
6055a9f6 PB |
54 | #else /* USE_TERMIO */ |
55 | struct termio old_tc = { 0 }; | |
56 | extern struct termio new_tc; | |
57 | ||
7a26b73d PB |
58 | # ifndef TCSANOW |
59 | # ifdef TCSETS | |
60 | # define TCSANOW TCSETS | |
61 | # define TCSADRAIN TCSETSW | |
15d31b7e | 62 | # define tcgetattr(f, t) ioctl(f, TCGETS, (char *)t) |
7a26b73d PB |
63 | # else |
64 | # ifdef TCSETA | |
65 | # define TCSANOW TCSETA | |
66 | # define TCSADRAIN TCSETAW | |
15d31b7e | 67 | # define tcgetattr(f, t) ioctl(f, TCGETA, (char *)t) |
7a26b73d PB |
68 | # else |
69 | # define TCSANOW TIOCSETA | |
70 | # define TCSADRAIN TIOCSETAW | |
15d31b7e | 71 | # define tcgetattr(f, t) ioctl(f, TIOCGETA, (char *)t) |
7a26b73d PB |
72 | # endif |
73 | # endif | |
15d31b7e | 74 | # define tcsetattr(f, a, t) ioctl(f, a, (char *)t) |
7a26b73d PB |
75 | # define cfgetospeed(ptr) ((ptr)->c_cflag&CBAUD) |
76 | # ifdef CIBAUD | |
77 | # define cfgetispeed(ptr) (((ptr)->c_cflag&CIBAUD) >> IBSHIFT) | |
78 | # else | |
79 | # define cfgetispeed(ptr) cfgetospeed(ptr) | |
80 | # endif | |
81 | # endif /* TCSANOW */ | |
8832c633 DB |
82 | # ifdef sysV88 |
83 | # define TIOCFLUSH TC_PX_DRAIN | |
84 | # endif | |
6055a9f6 | 85 | #endif /* USE_TERMIO */ |
e767b7ab | 86 | |
b307f09e GM |
87 | static fd_set ibits, obits, xbits; |
88 | ||
89 | ||
15d31b7e | 90 | void |
b307f09e GM |
91 | init_sys() |
92 | { | |
93 | tout = fileno(stdout); | |
94 | tin = fileno(stdin); | |
95 | FD_ZERO(&ibits); | |
96 | FD_ZERO(&obits); | |
97 | FD_ZERO(&xbits); | |
98 | ||
99 | errno = 0; | |
100 | } | |
101 | ||
e767b7ab | 102 | |
15d31b7e | 103 | int |
448f9c06 | 104 | TerminalWrite(buf, n) |
15d31b7e DB |
105 | char *buf; |
106 | int n; | |
e767b7ab | 107 | { |
448f9c06 | 108 | return write(tout, buf, n); |
e767b7ab GM |
109 | } |
110 | ||
15d31b7e | 111 | int |
448f9c06 | 112 | TerminalRead(buf, n) |
15d31b7e DB |
113 | char *buf; |
114 | int n; | |
e767b7ab | 115 | { |
448f9c06 | 116 | return read(tin, buf, n); |
e767b7ab GM |
117 | } |
118 | ||
119 | /* | |
120 | * | |
121 | */ | |
122 | ||
15d31b7e | 123 | int |
310e7d0b | 124 | TerminalAutoFlush() |
e767b7ab GM |
125 | { |
126 | #if defined(LNOFLSH) | |
127 | int flush; | |
128 | ||
129 | ioctl(0, TIOCLGET, (char *)&flush); | |
130 | return !(flush&LNOFLSH); /* if LNOFLSH, no autoflush */ | |
131 | #else /* LNOFLSH */ | |
132 | return 1; | |
133 | #endif /* LNOFLSH */ | |
134 | } | |
135 | ||
6055a9f6 PB |
136 | #ifdef KLUDGELINEMODE |
137 | extern int kludgelinemode; | |
138 | #endif | |
e767b7ab GM |
139 | /* |
140 | * TerminalSpecialChars() | |
141 | * | |
142 | * Look at an input character to see if it is a special character | |
143 | * and decide what to do. | |
144 | * | |
145 | * Output: | |
146 | * | |
147 | * 0 Don't add this character. | |
148 | * 1 Do add this character | |
149 | */ | |
150 | ||
15d31b7e | 151 | int |
310e7d0b | 152 | TerminalSpecialChars(c) |
15d31b7e | 153 | int c; |
e767b7ab | 154 | { |
310e7d0b | 155 | void xmitAO(), xmitEL(), xmitEC(), intp(), sendbrk(); |
e767b7ab | 156 | |
6055a9f6 | 157 | if (c == termIntChar) { |
e767b7ab GM |
158 | intp(); |
159 | return 0; | |
6055a9f6 PB |
160 | } else if (c == termQuitChar) { |
161 | #ifdef KLUDGELINEMODE | |
162 | if (kludgelinemode) | |
163 | sendbrk(); | |
164 | else | |
165 | #endif | |
166 | sendabort(); | |
e767b7ab | 167 | return 0; |
6055a9f6 PB |
168 | } else if (c == termEofChar) { |
169 | if (my_want_state_is_will(TELOPT_LINEMODE)) { | |
170 | sendeof(); | |
171 | return 0; | |
172 | } | |
173 | return 1; | |
174 | } else if (c == termSuspChar) { | |
175 | sendsusp(); | |
176 | return(0); | |
177 | } else if (c == termFlushChar) { | |
e767b7ab GM |
178 | xmitAO(); /* Transmit Abort Output */ |
179 | return 0; | |
180 | } else if (!MODE_LOCAL_CHARS(globalmode)) { | |
6055a9f6 | 181 | if (c == termKillChar) { |
e767b7ab GM |
182 | xmitEL(); |
183 | return 0; | |
6055a9f6 | 184 | } else if (c == termEraseChar) { |
e767b7ab GM |
185 | xmitEC(); /* Transmit Erase Character */ |
186 | return 0; | |
187 | } | |
188 | } | |
189 | return 1; | |
190 | } | |
191 | ||
192 | ||
193 | /* | |
194 | * Flush output to the terminal | |
195 | */ | |
196 | ||
15d31b7e | 197 | void |
310e7d0b | 198 | TerminalFlushOutput() |
e767b7ab | 199 | { |
7daa10bf | 200 | #ifdef TIOCFLUSH |
e767b7ab | 201 | (void) ioctl(fileno(stdout), TIOCFLUSH, (char *) 0); |
6055a9f6 PB |
202 | #else |
203 | (void) ioctl(fileno(stdout), TCFLSH, (char *) 0); | |
204 | #endif | |
e767b7ab GM |
205 | } |
206 | ||
15d31b7e | 207 | void |
310e7d0b | 208 | TerminalSaveState() |
e767b7ab | 209 | { |
6055a9f6 | 210 | #ifndef USE_TERMIO |
e767b7ab GM |
211 | ioctl(0, TIOCGETP, (char *)&ottyb); |
212 | ioctl(0, TIOCGETC, (char *)&otc); | |
213 | ioctl(0, TIOCGLTC, (char *)&oltc); | |
6570c863 | 214 | ioctl(0, TIOCLGET, (char *)&olmode); |
e767b7ab GM |
215 | |
216 | ntc = otc; | |
217 | nltc = oltc; | |
218 | nttyb = ottyb; | |
0e29050b | 219 | |
6055a9f6 | 220 | #else /* USE_TERMIO */ |
7a26b73d | 221 | tcgetattr(0, &old_tc); |
6055a9f6 PB |
222 | |
223 | new_tc = old_tc; | |
224 | ||
7a26b73d | 225 | #ifndef VDISCARD |
4a8a7128 | 226 | termFlushChar = CONTROL('O'); |
7a26b73d PB |
227 | #endif |
228 | #ifndef VWERASE | |
4a8a7128 | 229 | termWerasChar = CONTROL('W'); |
7a26b73d PB |
230 | #endif |
231 | #ifndef VREPRINT | |
4a8a7128 | 232 | termRprntChar = CONTROL('R'); |
7a26b73d PB |
233 | #endif |
234 | #ifndef VLNEXT | |
4a8a7128 | 235 | termLiteralNextChar = CONTROL('V'); |
7a26b73d PB |
236 | #endif |
237 | #ifndef VSTART | |
4a8a7128 | 238 | termStartChar = CONTROL('Q'); |
7a26b73d PB |
239 | #endif |
240 | #ifndef VSTOP | |
4a8a7128 | 241 | termStopChar = CONTROL('S'); |
7a26b73d PB |
242 | #endif |
243 | #ifndef VSTATUS | |
244 | termAytChar = CONTROL('T'); | |
245 | #endif | |
6055a9f6 PB |
246 | #endif /* USE_TERMIO */ |
247 | } | |
248 | ||
15d31b7e | 249 | cc_t * |
6055a9f6 | 250 | tcval(func) |
15d31b7e | 251 | register int func; |
6055a9f6 PB |
252 | { |
253 | switch(func) { | |
87b60187 PB |
254 | case SLC_IP: return(&termIntChar); |
255 | case SLC_ABORT: return(&termQuitChar); | |
256 | case SLC_EOF: return(&termEofChar); | |
257 | case SLC_EC: return(&termEraseChar); | |
258 | case SLC_EL: return(&termKillChar); | |
259 | case SLC_XON: return(&termStartChar); | |
260 | case SLC_XOFF: return(&termStopChar); | |
4a8a7128 | 261 | case SLC_FORW1: return(&termForw1Char); |
7a26b73d PB |
262 | #ifdef USE_TERMIO |
263 | case SLC_FORW2: return(&termForw2Char); | |
264 | # ifdef VDISCARD | |
87b60187 | 265 | case SLC_AO: return(&termFlushChar); |
7a26b73d PB |
266 | # endif |
267 | # ifdef VSUSP | |
87b60187 | 268 | case SLC_SUSP: return(&termSuspChar); |
7a26b73d PB |
269 | # endif |
270 | # ifdef VWERASE | |
87b60187 | 271 | case SLC_EW: return(&termWerasChar); |
7a26b73d PB |
272 | # endif |
273 | # ifdef VREPRINT | |
87b60187 | 274 | case SLC_RP: return(&termRprntChar); |
7a26b73d PB |
275 | # endif |
276 | # ifdef VLNEXT | |
87b60187 | 277 | case SLC_LNEXT: return(&termLiteralNextChar); |
7a26b73d PB |
278 | # endif |
279 | # ifdef VSTATUS | |
280 | case SLC_AYT: return(&termAytChar); | |
281 | # endif | |
4a8a7128 | 282 | #endif |
6055a9f6 PB |
283 | |
284 | case SLC_SYNCH: | |
285 | case SLC_BRK: | |
6055a9f6 | 286 | case SLC_EOR: |
6055a9f6 | 287 | default: |
87b60187 | 288 | return((cc_t *)0); |
6055a9f6 PB |
289 | } |
290 | } | |
291 | ||
15d31b7e | 292 | void |
6055a9f6 PB |
293 | TerminalDefaultChars() |
294 | { | |
295 | #ifndef USE_TERMIO | |
296 | ntc = otc; | |
297 | nltc = oltc; | |
298 | nttyb.sg_kill = ottyb.sg_kill; | |
299 | nttyb.sg_erase = ottyb.sg_erase; | |
300 | #else /* USE_TERMIO */ | |
301 | memcpy(new_tc.c_cc, old_tc.c_cc, sizeof(old_tc.c_cc)); | |
7a26b73d | 302 | # ifndef VDISCARD |
4a8a7128 | 303 | termFlushChar = CONTROL('O'); |
7daa10bf PB |
304 | # endif |
305 | # ifndef VWERASE | |
4a8a7128 | 306 | termWerasChar = CONTROL('W'); |
7daa10bf PB |
307 | # endif |
308 | # ifndef VREPRINT | |
4a8a7128 | 309 | termRprntChar = CONTROL('R'); |
7daa10bf PB |
310 | # endif |
311 | # ifndef VLNEXT | |
4a8a7128 | 312 | termLiteralNextChar = CONTROL('V'); |
7daa10bf PB |
313 | # endif |
314 | # ifndef VSTART | |
4a8a7128 | 315 | termStartChar = CONTROL('Q'); |
7daa10bf PB |
316 | # endif |
317 | # ifndef VSTOP | |
4a8a7128 | 318 | termStopChar = CONTROL('S'); |
7daa10bf | 319 | # endif |
7a26b73d PB |
320 | # ifndef VSTATUS |
321 | termAytChar = CONTROL('T'); | |
322 | # endif | |
6055a9f6 | 323 | #endif /* USE_TERMIO */ |
e767b7ab GM |
324 | } |
325 | ||
4a8a7128 | 326 | #ifdef notdef |
e767b7ab | 327 | void |
310e7d0b | 328 | TerminalRestoreState() |
e767b7ab GM |
329 | { |
330 | } | |
4a8a7128 | 331 | #endif |
e767b7ab GM |
332 | |
333 | /* | |
334 | * TerminalNewMode - set up terminal to a specific mode. | |
6055a9f6 PB |
335 | * MODE_ECHO: do local terminal echo |
336 | * MODE_FLOW: do local flow control | |
337 | * MODE_TRAPSIG: do local mapping to TELNET IAC sequences | |
338 | * MODE_EDIT: do local line editing | |
339 | * | |
340 | * Command mode: | |
341 | * MODE_ECHO|MODE_EDIT|MODE_FLOW|MODE_TRAPSIG | |
342 | * local echo | |
343 | * local editing | |
344 | * local xon/xoff | |
345 | * local signal mapping | |
346 | * | |
347 | * Linemode: | |
348 | * local/no editing | |
349 | * Both Linemode and Single Character mode: | |
350 | * local/remote echo | |
351 | * local/no xon/xoff | |
352 | * local/no signal mapping | |
e767b7ab GM |
353 | */ |
354 | ||
355 | ||
15d31b7e | 356 | void |
448f9c06 | 357 | TerminalNewMode(f) |
15d31b7e | 358 | register int f; |
e767b7ab GM |
359 | { |
360 | static int prevmode = 0; | |
6055a9f6 PB |
361 | #ifndef USE_TERMIO |
362 | struct tchars tc; | |
363 | struct ltchars ltc; | |
e767b7ab | 364 | struct sgttyb sb; |
6570c863 | 365 | int lmode; |
6055a9f6 PB |
366 | #else /* USE_TERMIO */ |
367 | struct termio tmp_tc; | |
368 | #endif /* USE_TERMIO */ | |
e767b7ab GM |
369 | int onoff; |
370 | int old; | |
15d31b7e | 371 | cc_t esc; |
e767b7ab | 372 | |
6055a9f6 | 373 | globalmode = f&~MODE_FORCE; |
e767b7ab GM |
374 | if (prevmode == f) |
375 | return; | |
6055a9f6 PB |
376 | |
377 | /* | |
378 | * Write any outstanding data before switching modes | |
379 | * ttyflush() returns 0 only when there is no more data | |
380 | * left to write out, it returns -1 if it couldn't do | |
381 | * anything at all, otherwise it returns 1 + the number | |
382 | * of characters left to write. | |
7a26b73d PB |
383 | #ifndef USE_TERMIO |
384 | * We would really like ask the kernel to wait for the output | |
385 | * to drain, like we can do with the TCSADRAIN, but we don't have | |
386 | * that option. The only ioctl that waits for the output to | |
387 | * drain, TIOCSETP, also flushes the input queue, which is NOT | |
388 | * what we want (TIOCSETP is like TCSADFLUSH). | |
389 | #endif | |
6055a9f6 PB |
390 | */ |
391 | old = ttyflush(SYNCHing|flushout); | |
392 | if (old < 0 || old > 1) { | |
7a26b73d | 393 | #ifdef USE_TERMIO |
15d31b7e | 394 | tcgetattr(tin, &tmp_tc); |
6055a9f6 PB |
395 | #endif /* USE_TERMIO */ |
396 | do { | |
397 | /* | |
398 | * Wait for data to drain, then flush again. | |
399 | */ | |
7a26b73d | 400 | #ifdef USE_TERMIO |
15d31b7e | 401 | tcsetattr(tin, TCSADRAIN, &tmp_tc); |
6055a9f6 PB |
402 | #endif /* USE_TERMIO */ |
403 | old = ttyflush(SYNCHing|flushout); | |
404 | } while (old < 0 || old > 1); | |
405 | } | |
406 | ||
e767b7ab | 407 | old = prevmode; |
6055a9f6 PB |
408 | prevmode = f&~MODE_FORCE; |
409 | #ifndef USE_TERMIO | |
e767b7ab | 410 | sb = nttyb; |
6055a9f6 PB |
411 | tc = ntc; |
412 | ltc = nltc; | |
6570c863 | 413 | lmode = olmode; |
6055a9f6 PB |
414 | #else |
415 | tmp_tc = new_tc; | |
416 | #endif | |
417 | ||
418 | if (f&MODE_ECHO) { | |
419 | #ifndef USE_TERMIO | |
420 | sb.sg_flags |= ECHO; | |
421 | #else | |
422 | tmp_tc.c_lflag |= ECHO; | |
423 | tmp_tc.c_oflag |= ONLCR; | |
15d31b7e DB |
424 | if (crlf) |
425 | tmp_tc.c_iflag |= ICRNL; | |
6055a9f6 PB |
426 | #endif |
427 | } else { | |
428 | #ifndef USE_TERMIO | |
429 | sb.sg_flags &= ~ECHO; | |
430 | #else | |
431 | tmp_tc.c_lflag &= ~ECHO; | |
432 | tmp_tc.c_oflag &= ~ONLCR; | |
7daa10bf | 433 | # ifdef notdef |
15d31b7e DB |
434 | if (crlf) |
435 | tmp_tc.c_iflag &= ~ICRNL; | |
7daa10bf | 436 | # endif |
6055a9f6 PB |
437 | #endif |
438 | } | |
e767b7ab | 439 | |
6055a9f6 PB |
440 | if ((f&MODE_FLOW) == 0) { |
441 | #ifndef USE_TERMIO | |
7a26b73d PB |
442 | tc.t_startc = _POSIX_VDISABLE; |
443 | tc.t_stopc = _POSIX_VDISABLE; | |
6055a9f6 | 444 | #else |
8832c633 | 445 | tmp_tc.c_iflag &= ~(IXOFF|IXON); /* Leave the IXANY bit alone */ |
6055a9f6 | 446 | } else { |
8832c633 DB |
447 | if (restartany < 0) { |
448 | tmp_tc.c_iflag |= IXOFF|IXON; /* Leave the IXANY bit alone */ | |
449 | } else if (restartany > 0) { | |
450 | tmp_tc.c_iflag |= IXOFF|IXON|IXANY; | |
451 | } else { | |
452 | tmp_tc.c_iflag |= IXOFF|IXON; | |
453 | tmp_tc.c_iflag &= ~IXANY; | |
454 | } | |
6055a9f6 PB |
455 | #endif |
456 | } | |
e767b7ab | 457 | |
6055a9f6 PB |
458 | if ((f&MODE_TRAPSIG) == 0) { |
459 | #ifndef USE_TERMIO | |
7a26b73d PB |
460 | tc.t_intrc = _POSIX_VDISABLE; |
461 | tc.t_quitc = _POSIX_VDISABLE; | |
462 | tc.t_eofc = _POSIX_VDISABLE; | |
463 | ltc.t_suspc = _POSIX_VDISABLE; | |
464 | ltc.t_dsuspc = _POSIX_VDISABLE; | |
6055a9f6 PB |
465 | #else |
466 | tmp_tc.c_lflag &= ~ISIG; | |
467 | #endif | |
468 | localchars = 0; | |
469 | } else { | |
470 | #ifdef USE_TERMIO | |
471 | tmp_tc.c_lflag |= ISIG; | |
472 | #endif | |
473 | localchars = 1; | |
474 | } | |
475 | ||
476 | if (f&MODE_EDIT) { | |
477 | #ifndef USE_TERMIO | |
478 | sb.sg_flags &= ~CBREAK; | |
479 | sb.sg_flags |= CRMOD; | |
480 | #else | |
481 | tmp_tc.c_lflag |= ICANON; | |
482 | #endif | |
483 | } else { | |
484 | #ifndef USE_TERMIO | |
485 | sb.sg_flags |= CBREAK; | |
486 | if (f&MODE_ECHO) | |
e767b7ab | 487 | sb.sg_flags |= CRMOD; |
6055a9f6 PB |
488 | else |
489 | sb.sg_flags &= ~CRMOD; | |
490 | #else | |
491 | tmp_tc.c_lflag &= ~ICANON; | |
492 | tmp_tc.c_iflag &= ~ICRNL; | |
493 | tmp_tc.c_cc[VMIN] = 1; | |
494 | tmp_tc.c_cc[VTIME] = 0; | |
495 | #endif | |
496 | } | |
e767b7ab | 497 | |
4a8a7128 PB |
498 | if ((f&(MODE_EDIT|MODE_TRAPSIG)) == 0) { |
499 | #ifndef USE_TERMIO | |
7a26b73d | 500 | ltc.t_lnextc = _POSIX_VDISABLE; |
4a8a7128 PB |
501 | #else |
502 | # ifdef VLNEXT | |
7a26b73d | 503 | tmp_tc.c_cc[VLNEXT] = (cc_t)(_POSIX_VDISABLE); |
4a8a7128 PB |
504 | # endif |
505 | #endif | |
506 | } | |
507 | ||
508 | if (f&MODE_SOFT_TAB) { | |
509 | #ifndef USE_TERMIO | |
510 | sb.sg_flags |= XTABS; | |
511 | #else | |
512 | # ifdef OXTABS | |
513 | tmp_tc.c_oflag |= OXTABS; | |
514 | # endif | |
515 | # ifdef TABDLY | |
516 | tmp_tc.c_oflag &= ~TABDLY; | |
517 | tmp_tc.c_oflag |= TAB3; | |
518 | # endif | |
519 | #endif | |
520 | } else { | |
521 | #ifndef USE_TERMIO | |
522 | sb.sg_flags &= ~XTABS; | |
523 | #else | |
524 | # ifdef OXTABS | |
525 | tmp_tc.c_oflag &= ~OXTABS; | |
526 | # endif | |
527 | # ifdef TABDLY | |
528 | tmp_tc.c_oflag &= ~TABDLY; | |
529 | # endif | |
530 | #endif | |
531 | } | |
532 | ||
533 | if (f&MODE_LIT_ECHO) { | |
534 | #ifndef USE_TERMIO | |
15d31b7e | 535 | lmode &= ~LCTLECH; |
4a8a7128 PB |
536 | #else |
537 | # ifdef ECHOCTL | |
538 | tmp_tc.c_lflag &= ~ECHOCTL; | |
539 | # endif | |
540 | #endif | |
541 | } else { | |
542 | #ifndef USE_TERMIO | |
15d31b7e | 543 | lmode |= LCTLECH; |
4a8a7128 PB |
544 | #else |
545 | # ifdef ECHOCTL | |
546 | tmp_tc.c_lflag |= ECHOCTL; | |
547 | # endif | |
548 | #endif | |
549 | } | |
550 | ||
6055a9f6 PB |
551 | if (f == -1) { |
552 | onoff = 0; | |
553 | } else { | |
6570c863 | 554 | #ifndef USE_TERMIO |
7daa10bf | 555 | if (f & MODE_OUTBIN) |
6570c863 PB |
556 | lmode |= LLITOUT; |
557 | else | |
558 | lmode &= ~LLITOUT; | |
7daa10bf PB |
559 | |
560 | if (f & MODE_INBIN) | |
6570c863 PB |
561 | lmode |= LPASS8; |
562 | else | |
563 | lmode &= ~LPASS8; | |
564 | #else | |
7a26b73d PB |
565 | if (f & MODE_INBIN) |
566 | tmp_tc.c_iflag &= ~ISTRIP; | |
6570c863 | 567 | else |
7a26b73d PB |
568 | tmp_tc.c_iflag |= ISTRIP; |
569 | if (f & MODE_OUTBIN) { | |
7daa10bf PB |
570 | tmp_tc.c_cflag &= ~(CSIZE|PARENB); |
571 | tmp_tc.c_cflag |= CS8; | |
7a26b73d | 572 | tmp_tc.c_oflag &= ~OPOST; |
7daa10bf | 573 | } else { |
7a26b73d PB |
574 | tmp_tc.c_cflag &= ~(CSIZE|PARENB); |
575 | tmp_tc.c_cflag |= old_tc.c_cflag & (CSIZE|PARENB); | |
576 | tmp_tc.c_oflag |= OPOST; | |
7daa10bf | 577 | } |
6570c863 | 578 | #endif |
6055a9f6 PB |
579 | onoff = 1; |
580 | } | |
581 | ||
6055a9f6 | 582 | if (f != -1) { |
7daa10bf | 583 | #ifdef SIGTSTP |
7a26b73d PB |
584 | static SIG_FUNC_RET susp(); |
585 | #endif /* SIGTSTP */ | |
586 | #ifdef SIGINFO | |
587 | static SIG_FUNC_RET ayt(); | |
588 | #endif SIGINFO | |
6055a9f6 | 589 | |
7a26b73d PB |
590 | #ifdef SIGTSTP |
591 | (void) signal(SIGTSTP, susp); | |
7daa10bf | 592 | #endif /* SIGTSTP */ |
7a26b73d PB |
593 | #ifdef SIGINFO |
594 | (void) signal(SIGINFO, ayt); | |
595 | #endif SIGINFO | |
596 | #if defined(USE_TERMIO) && defined(NOKERNINFO) | |
597 | tmp_tc.c_lflag |= NOKERNINFO; | |
598 | #endif | |
4a8a7128 PB |
599 | /* |
600 | * We don't want to process ^Y here. It's just another | |
601 | * character that we'll pass on to the back end. It has | |
602 | * to process it because it will be processed when the | |
603 | * user attempts to read it, not when we send it. | |
604 | */ | |
605 | #ifndef USE_TERMIO | |
7a26b73d | 606 | ltc.t_dsuspc = _POSIX_VDISABLE; |
4a8a7128 PB |
607 | #else |
608 | # ifdef VDSUSP | |
7a26b73d | 609 | tmp_tc.c_cc[VDSUSP] = (cc_t)(_POSIX_VDISABLE); |
f12a5902 TH |
610 | # endif |
611 | #endif | |
87b60187 | 612 | #ifdef USE_TERMIO |
87b60187 PB |
613 | /* |
614 | * If the VEOL character is already set, then use VEOL2, | |
615 | * otherwise use VEOL. | |
616 | */ | |
15d31b7e DB |
617 | esc = (rlogin != _POSIX_VDISABLE) ? rlogin : escape; |
618 | if ((tmp_tc.c_cc[VEOL] != esc) | |
7a26b73d | 619 | # ifdef VEOL2 |
15d31b7e | 620 | && (tmp_tc.c_cc[VEOL2] != esc) |
7a26b73d | 621 | # endif |
15d31b7e | 622 | ) { |
7a26b73d | 623 | if (tmp_tc.c_cc[VEOL] == (cc_t)(_POSIX_VDISABLE)) |
15d31b7e | 624 | tmp_tc.c_cc[VEOL] = esc; |
4a8a7128 | 625 | # ifdef VEOL2 |
7a26b73d | 626 | else if (tmp_tc.c_cc[VEOL2] == (cc_t)(_POSIX_VDISABLE)) |
15d31b7e | 627 | tmp_tc.c_cc[VEOL2] = esc; |
4a8a7128 | 628 | # endif |
7a26b73d | 629 | } |
87b60187 | 630 | #else |
7a26b73d | 631 | if (tc.t_brkc == (cc_t)(_POSIX_VDISABLE)) |
15d31b7e | 632 | tc.t_brkc = esc; |
87b60187 | 633 | #endif |
6055a9f6 | 634 | } else { |
7a26b73d PB |
635 | #ifdef SIGINFO |
636 | SIG_FUNC_RET ayt_status(); | |
637 | ||
638 | (void) signal(SIGINFO, ayt_status); | |
639 | #endif SIGINFO | |
7daa10bf | 640 | #ifdef SIGTSTP |
6055a9f6 | 641 | (void) signal(SIGTSTP, SIG_DFL); |
4a8a7128 | 642 | (void) sigsetmask(sigblock(0) & ~(1<<(SIGTSTP-1))); |
7daa10bf PB |
643 | #endif /* SIGTSTP */ |
644 | #ifndef USE_TERMIO | |
645 | ltc = oltc; | |
646 | tc = otc; | |
647 | sb = ottyb; | |
4a8a7128 PB |
648 | lmode = olmode; |
649 | #else | |
650 | tmp_tc = old_tc; | |
7daa10bf | 651 | #endif |
e767b7ab | 652 | } |
7daa10bf PB |
653 | #ifndef USE_TERMIO |
654 | ioctl(tin, TIOCLSET, (char *)&lmode); | |
655 | ioctl(tin, TIOCSLTC, (char *)<c); | |
656 | ioctl(tin, TIOCSETC, (char *)&tc); | |
7a26b73d | 657 | ioctl(tin, TIOCSETN, (char *)&sb); |
7daa10bf | 658 | #else |
7a26b73d PB |
659 | if (tcsetattr(tin, TCSADRAIN, &tmp_tc) < 0) |
660 | tcsetattr(tin, TCSANOW, &tmp_tc); | |
7daa10bf PB |
661 | #endif |
662 | ||
e767b7ab | 663 | #if (!defined(TN3270)) || ((!defined(NOT43)) || defined(PUTCHAR)) |
8832c633 | 664 | # if !defined(sysV88) |
448f9c06 GM |
665 | ioctl(tin, FIONBIO, (char *)&onoff); |
666 | ioctl(tout, FIONBIO, (char *)&onoff); | |
8832c633 | 667 | # endif |
e767b7ab GM |
668 | #endif /* (!defined(TN3270)) || ((!defined(NOT43)) || defined(PUTCHAR)) */ |
669 | #if defined(TN3270) | |
4ad36dea | 670 | if (noasynchtty == 0) { |
448f9c06 | 671 | ioctl(tin, FIOASYNC, (char *)&onoff); |
e767b7ab GM |
672 | } |
673 | #endif /* defined(TN3270) */ | |
15d31b7e | 674 | |
e767b7ab GM |
675 | } |
676 | ||
7daa10bf PB |
677 | #ifndef B19200 |
678 | # define B19200 B9600 | |
679 | #endif | |
680 | ||
681 | #ifndef B38400 | |
682 | # define B38400 B19200 | |
683 | #endif | |
684 | ||
685 | /* | |
686 | * This code assumes that the values B0, B50, B75... | |
687 | * are in ascending order. They do not have to be | |
688 | * contiguous. | |
689 | */ | |
690 | struct termspeeds { | |
691 | long speed; | |
692 | long value; | |
693 | } termspeeds[] = { | |
694 | { 0, B0 }, { 50, B50 }, { 75, B75 }, | |
695 | { 110, B110 }, { 134, B134 }, { 150, B150 }, | |
696 | { 200, B200 }, { 300, B300 }, { 600, B600 }, | |
697 | { 1200, B1200 }, { 1800, B1800 }, { 2400, B2400 }, | |
698 | { 4800, B4800 }, { 9600, B9600 }, { 19200, B19200 }, | |
699 | { 38400, B38400 }, { -1, B38400 } | |
700 | }; | |
701 | ||
15d31b7e | 702 | void |
445e62ba | 703 | TerminalSpeeds(ispeed, ospeed) |
15d31b7e DB |
704 | long *ispeed; |
705 | long *ospeed; | |
445e62ba | 706 | { |
7daa10bf | 707 | register struct termspeeds *tp; |
7a26b73d PB |
708 | register long in, out; |
709 | ||
7a26b73d | 710 | out = cfgetospeed(&old_tc); |
15d31b7e DB |
711 | in = cfgetispeed(&old_tc); |
712 | if (in == 0) | |
713 | in = out; | |
7daa10bf PB |
714 | |
715 | tp = termspeeds; | |
7a26b73d | 716 | while ((tp->speed != -1) && (tp->value < in)) |
7daa10bf PB |
717 | tp++; |
718 | *ispeed = tp->speed; | |
719 | ||
720 | tp = termspeeds; | |
7a26b73d | 721 | while ((tp->speed != -1) && (tp->value < out)) |
7daa10bf PB |
722 | tp++; |
723 | *ospeed = tp->speed; | |
445e62ba GM |
724 | } |
725 | ||
15d31b7e | 726 | int |
445e62ba | 727 | TerminalWindowSize(rows, cols) |
15d31b7e | 728 | long *rows, *cols; |
445e62ba | 729 | { |
6055a9f6 | 730 | #ifdef TIOCGWINSZ |
445e62ba GM |
731 | struct winsize ws; |
732 | ||
6055a9f6 PB |
733 | if (ioctl(fileno(stdin), TIOCGWINSZ, (char *)&ws) >= 0) { |
734 | *rows = ws.ws_row; | |
735 | *cols = ws.ws_col; | |
736 | return 1; | |
445e62ba | 737 | } |
3942e0c3 | 738 | #endif /* TIOCGWINSZ */ |
6055a9f6 | 739 | return 0; |
445e62ba | 740 | } |
e767b7ab | 741 | |
15d31b7e | 742 | int |
0ea35455 | 743 | NetClose(fd) |
15d31b7e | 744 | int fd; |
e767b7ab | 745 | { |
0ea35455 | 746 | return close(fd); |
e767b7ab GM |
747 | } |
748 | ||
749 | ||
15d31b7e | 750 | void |
310e7d0b | 751 | NetNonblockingIO(fd, onoff) |
15d31b7e DB |
752 | int fd; |
753 | int onoff; | |
e767b7ab GM |
754 | { |
755 | ioctl(fd, FIONBIO, (char *)&onoff); | |
756 | } | |
757 | ||
80a47e22 | 758 | #if defined(TN3270) |
15d31b7e | 759 | void |
310e7d0b | 760 | NetSigIO(fd, onoff) |
15d31b7e DB |
761 | int fd; |
762 | int onoff; | |
e767b7ab GM |
763 | { |
764 | ioctl(fd, FIOASYNC, (char *)&onoff); /* hear about input */ | |
765 | } | |
766 | ||
15d31b7e | 767 | void |
310e7d0b | 768 | NetSetPgrp(fd) |
15d31b7e | 769 | int fd; |
e767b7ab GM |
770 | { |
771 | int myPid; | |
772 | ||
773 | myPid = getpid(); | |
344def17 | 774 | fcntl(fd, F_SETOWN, myPid); |
e767b7ab | 775 | } |
80a47e22 | 776 | #endif /*defined(TN3270)*/ |
310e7d0b GM |
777 | \f |
778 | /* | |
779 | * Various signal handling routines. | |
780 | */ | |
781 | ||
15d31b7e DB |
782 | /* ARGSUSED */ |
783 | static SIG_FUNC_RET | |
7a26b73d | 784 | deadpeer(sig) |
15d31b7e | 785 | int sig; |
310e7d0b GM |
786 | { |
787 | setcommandmode(); | |
788 | longjmp(peerdied, -1); | |
789 | } | |
790 | ||
15d31b7e DB |
791 | /* ARGSUSED */ |
792 | static SIG_FUNC_RET | |
7a26b73d | 793 | intr(sig) |
15d31b7e | 794 | int sig; |
310e7d0b GM |
795 | { |
796 | if (localchars) { | |
797 | intp(); | |
798 | return; | |
799 | } | |
800 | setcommandmode(); | |
801 | longjmp(toplevel, -1); | |
802 | } | |
e767b7ab | 803 | |
15d31b7e DB |
804 | /* ARGSUSED */ |
805 | static SIG_FUNC_RET | |
7a26b73d | 806 | intr2(sig) |
15d31b7e | 807 | int sig; |
310e7d0b GM |
808 | { |
809 | if (localchars) { | |
6055a9f6 PB |
810 | #ifdef KLUDGELINEMODE |
811 | if (kludgelinemode) | |
812 | sendbrk(); | |
813 | else | |
814 | #endif | |
815 | sendabort(); | |
310e7d0b GM |
816 | return; |
817 | } | |
818 | } | |
e767b7ab | 819 | |
7a26b73d | 820 | #ifdef SIGTSTP |
15d31b7e DB |
821 | /* ARGSUSED */ |
822 | static SIG_FUNC_RET | |
7a26b73d | 823 | susp(sig) |
15d31b7e | 824 | int sig; |
87b60187 | 825 | { |
15d31b7e DB |
826 | if ((rlogin != _POSIX_VDISABLE) && rlogin_susp()) |
827 | return; | |
87b60187 PB |
828 | if (localchars) |
829 | sendsusp(); | |
830 | } | |
7a26b73d | 831 | #endif |
87b60187 | 832 | |
7a26b73d | 833 | #ifdef SIGWINCH |
15d31b7e DB |
834 | /* ARGSUSED */ |
835 | static SIG_FUNC_RET | |
7a26b73d | 836 | sendwin(sig) |
15d31b7e | 837 | int sig; |
445e62ba GM |
838 | { |
839 | if (connected) { | |
840 | sendnaws(); | |
841 | } | |
842 | } | |
7a26b73d PB |
843 | #endif |
844 | ||
845 | #ifdef SIGINFO | |
15d31b7e DB |
846 | /* ARGSUSED */ |
847 | static SIG_FUNC_RET | |
7a26b73d | 848 | ayt(sig) |
15d31b7e | 849 | int sig; |
7a26b73d PB |
850 | { |
851 | if (connected) | |
852 | sendayt(); | |
853 | else | |
854 | ayt_status(); | |
855 | } | |
856 | #endif | |
445e62ba | 857 | |
310e7d0b | 858 | \f |
15d31b7e | 859 | void |
b307f09e GM |
860 | sys_telnet_init() |
861 | { | |
7a26b73d PB |
862 | (void) signal(SIGINT, intr); |
863 | (void) signal(SIGQUIT, intr2); | |
864 | (void) signal(SIGPIPE, deadpeer); | |
6055a9f6 | 865 | #ifdef SIGWINCH |
7a26b73d | 866 | (void) signal(SIGWINCH, sendwin); |
87b60187 PB |
867 | #endif |
868 | #ifdef SIGTSTP | |
7a26b73d PB |
869 | (void) signal(SIGTSTP, susp); |
870 | #endif | |
871 | #ifdef SIGINFO | |
872 | (void) signal(SIGINFO, ayt); | |
6055a9f6 | 873 | #endif |
310e7d0b | 874 | |
6055a9f6 | 875 | setconnmode(0); |
b307f09e GM |
876 | |
877 | NetNonblockingIO(net, 1); | |
878 | ||
879 | #if defined(TN3270) | |
4ad36dea | 880 | if (noasynchnet == 0) { /* DBX can't handle! */ |
b307f09e GM |
881 | NetSigIO(net, 1); |
882 | NetSetPgrp(net); | |
883 | } | |
884 | #endif /* defined(TN3270) */ | |
885 | ||
886 | #if defined(SO_OOBINLINE) | |
80a47e22 GM |
887 | if (SetSockOpt(net, SOL_SOCKET, SO_OOBINLINE, 1) == -1) { |
888 | perror("SetSockOpt"); | |
889 | } | |
b307f09e GM |
890 | #endif /* defined(SO_OOBINLINE) */ |
891 | } | |
892 | ||
893 | /* | |
894 | * Process rings - | |
895 | * | |
896 | * This routine tries to fill up/empty our various rings. | |
897 | * | |
898 | * The parameter specifies whether this is a poll operation, | |
899 | * or a block-until-something-happens operation. | |
900 | * | |
901 | * The return value is 1 if something happened, 0 if not. | |
902 | */ | |
903 | ||
15d31b7e | 904 | int |
b307f09e | 905 | process_rings(netin, netout, netex, ttyin, ttyout, poll) |
15d31b7e | 906 | int poll; /* If 0, then block until something to do */ |
b307f09e GM |
907 | { |
908 | register int c; | |
909 | /* One wants to be a bit careful about setting returnValue | |
910 | * to one, since a one implies we did some useful work, | |
911 | * and therefore probably won't be called to block next | |
912 | * time (TN3270 mode only). | |
913 | */ | |
914 | int returnValue = 0; | |
915 | static struct timeval TimeValue = { 0 }; | |
916 | ||
917 | if (netout) { | |
918 | FD_SET(net, &obits); | |
919 | } | |
920 | if (ttyout) { | |
921 | FD_SET(tout, &obits); | |
922 | } | |
923 | #if defined(TN3270) | |
924 | if (ttyin) { | |
925 | FD_SET(tin, &ibits); | |
926 | } | |
927 | #else /* defined(TN3270) */ | |
928 | if (ttyin) { | |
929 | FD_SET(tin, &ibits); | |
930 | } | |
931 | #endif /* defined(TN3270) */ | |
932 | #if defined(TN3270) | |
933 | if (netin) { | |
934 | FD_SET(net, &ibits); | |
935 | } | |
936 | # else /* !defined(TN3270) */ | |
937 | if (netin) { | |
938 | FD_SET(net, &ibits); | |
939 | } | |
940 | # endif /* !defined(TN3270) */ | |
941 | if (netex) { | |
942 | FD_SET(net, &xbits); | |
943 | } | |
944 | if ((c = select(16, &ibits, &obits, &xbits, | |
945 | (poll == 0)? (struct timeval *)0 : &TimeValue)) < 0) { | |
946 | if (c == -1) { | |
947 | /* | |
948 | * we can get EINTR if we are in line mode, | |
949 | * and the user does an escape (TSTP), or | |
950 | * some other signal generator. | |
951 | */ | |
952 | if (errno == EINTR) { | |
953 | return 0; | |
954 | } | |
955 | # if defined(TN3270) | |
956 | /* | |
957 | * we can get EBADF if we were in transparent | |
958 | * mode, and the transcom process died. | |
959 | */ | |
960 | if (errno == EBADF) { | |
961 | /* | |
962 | * zero the bits (even though kernel does it) | |
963 | * to make sure we are selecting on the right | |
964 | * ones. | |
965 | */ | |
966 | FD_ZERO(&ibits); | |
967 | FD_ZERO(&obits); | |
968 | FD_ZERO(&xbits); | |
969 | return 0; | |
970 | } | |
971 | # endif /* defined(TN3270) */ | |
972 | /* I don't like this, does it ever happen? */ | |
973 | printf("sleep(5) from telnet, after select\r\n"); | |
b307f09e | 974 | sleep(5); |
b307f09e GM |
975 | } |
976 | return 0; | |
977 | } | |
978 | ||
979 | /* | |
980 | * Any urgent data? | |
981 | */ | |
982 | if (FD_ISSET(net, &xbits)) { | |
983 | FD_CLR(net, &xbits); | |
984 | SYNCHing = 1; | |
4a8a7128 | 985 | (void) ttyflush(1); /* flush already enqueued data */ |
b307f09e GM |
986 | } |
987 | ||
988 | /* | |
989 | * Something to read from the network... | |
990 | */ | |
991 | if (FD_ISSET(net, &ibits)) { | |
992 | int canread; | |
993 | ||
994 | FD_CLR(net, &ibits); | |
995 | canread = ring_empty_consecutive(&netiring); | |
996 | #if !defined(SO_OOBINLINE) | |
997 | /* | |
998 | * In 4.2 (and some early 4.3) systems, the | |
999 | * OOB indication and data handling in the kernel | |
1000 | * is such that if two separate TCP Urgent requests | |
1001 | * come in, one byte of TCP data will be overlaid. | |
1002 | * This is fatal for Telnet, but we try to live | |
1003 | * with it. | |
1004 | * | |
1005 | * In addition, in 4.2 (and...), a special protocol | |
1006 | * is needed to pick up the TCP Urgent data in | |
1007 | * the correct sequence. | |
1008 | * | |
1009 | * What we do is: if we think we are in urgent | |
1010 | * mode, we look to see if we are "at the mark". | |
1011 | * If we are, we do an OOB receive. If we run | |
1012 | * this twice, we will do the OOB receive twice, | |
1013 | * but the second will fail, since the second | |
1014 | * time we were "at the mark", but there wasn't | |
1015 | * any data there (the kernel doesn't reset | |
1016 | * "at the mark" until we do a normal read). | |
1017 | * Once we've read the OOB data, we go ahead | |
1018 | * and do normal reads. | |
1019 | * | |
1020 | * There is also another problem, which is that | |
1021 | * since the OOB byte we read doesn't put us | |
1022 | * out of OOB state, and since that byte is most | |
1023 | * likely the TELNET DM (data mark), we would | |
1024 | * stay in the TELNET SYNCH (SYNCHing) state. | |
1025 | * So, clocks to the rescue. If we've "just" | |
1026 | * received a DM, then we test for the | |
1027 | * presence of OOB data when the receive OOB | |
1028 | * fails (and AFTER we did the normal mode read | |
1029 | * to clear "at the mark"). | |
1030 | */ | |
1031 | if (SYNCHing) { | |
1032 | int atmark; | |
49e7660e | 1033 | static int bogus_oob = 0, first = 1; |
b307f09e GM |
1034 | |
1035 | ioctl(net, SIOCATMARK, (char *)&atmark); | |
1036 | if (atmark) { | |
1037 | c = recv(net, netiring.supply, canread, MSG_OOB); | |
1038 | if ((c == -1) && (errno == EINVAL)) { | |
1039 | c = recv(net, netiring.supply, canread, 0); | |
1040 | if (clocks.didnetreceive < clocks.gotDM) { | |
1041 | SYNCHing = stilloob(net); | |
1042 | } | |
49e7660e PB |
1043 | } else if (first && c > 0) { |
1044 | /* | |
1045 | * Bogosity check. Systems based on 4.2BSD | |
1046 | * do not return an error if you do a second | |
1047 | * recv(MSG_OOB). So, we do one. If it | |
1048 | * succeeds and returns exactly the same | |
1049 | * data, then assume that we are running | |
1050 | * on a broken system and set the bogus_oob | |
1051 | * flag. (If the data was different, then | |
1052 | * we probably got some valid new data, so | |
1053 | * increment the count...) | |
1054 | */ | |
1055 | int i; | |
1056 | i = recv(net, netiring.supply + c, canread - c, MSG_OOB); | |
1057 | if (i == c && | |
1058 | bcmp(netiring.supply, netiring.supply + c, i) == 0) { | |
1059 | bogus_oob = 1; | |
1060 | first = 0; | |
1061 | } else if (i < 0) { | |
1062 | bogus_oob = 0; | |
1063 | first = 0; | |
1064 | } else | |
1065 | c += i; | |
1066 | } | |
1067 | if (bogus_oob && c > 0) { | |
1068 | int i; | |
1069 | /* | |
1070 | * Bogosity. We have to do the read | |
1071 | * to clear the atmark to get out of | |
1072 | * an infinate loop. | |
1073 | */ | |
1074 | i = read(net, netiring.supply + c, canread - c); | |
1075 | if (i > 0) | |
1076 | c += i; | |
b307f09e GM |
1077 | } |
1078 | } else { | |
1079 | c = recv(net, netiring.supply, canread, 0); | |
1080 | } | |
1081 | } else { | |
1082 | c = recv(net, netiring.supply, canread, 0); | |
1083 | } | |
1084 | settimer(didnetreceive); | |
1085 | #else /* !defined(SO_OOBINLINE) */ | |
1086 | c = recv(net, netiring.supply, canread, 0); | |
1087 | #endif /* !defined(SO_OOBINLINE) */ | |
1088 | if (c < 0 && errno == EWOULDBLOCK) { | |
1089 | c = 0; | |
1090 | } else if (c <= 0) { | |
1091 | return -1; | |
1092 | } | |
1093 | if (netdata) { | |
1094 | Dump('<', netiring.supply, c); | |
1095 | } | |
ad1c581e GM |
1096 | if (c) |
1097 | ring_supplied(&netiring, c); | |
b307f09e GM |
1098 | returnValue = 1; |
1099 | } | |
1100 | ||
1101 | /* | |
1102 | * Something to read from the tty... | |
1103 | */ | |
1104 | if (FD_ISSET(tin, &ibits)) { | |
1105 | FD_CLR(tin, &ibits); | |
448f9c06 | 1106 | c = TerminalRead(ttyiring.supply, ring_empty_consecutive(&ttyiring)); |
b307f09e GM |
1107 | if (c < 0 && errno == EWOULDBLOCK) { |
1108 | c = 0; | |
1109 | } else { | |
b307f09e | 1110 | /* EOF detection for line mode!!!! */ |
75ec5474 | 1111 | if ((c == 0) && MODE_LOCAL_CHARS(globalmode) && isatty(tin)) { |
b307f09e GM |
1112 | /* must be an EOF... */ |
1113 | *ttyiring.supply = termEofChar; | |
1114 | c = 1; | |
1115 | } | |
b307f09e GM |
1116 | if (c <= 0) { |
1117 | return -1; | |
1118 | } | |
40cc3fc2 GM |
1119 | if (termdata) { |
1120 | Dump('<', ttyiring.supply, c); | |
1121 | } | |
ad1c581e | 1122 | ring_supplied(&ttyiring, c); |
b307f09e | 1123 | } |
b307f09e GM |
1124 | returnValue = 1; /* did something useful */ |
1125 | } | |
1126 | ||
1127 | if (FD_ISSET(net, &obits)) { | |
1128 | FD_CLR(net, &obits); | |
1129 | returnValue |= netflush(); | |
1130 | } | |
1131 | if (FD_ISSET(tout, &obits)) { | |
1132 | FD_CLR(tout, &obits); | |
6055a9f6 | 1133 | returnValue |= (ttyflush(SYNCHing|flushout) > 0); |
b307f09e GM |
1134 | } |
1135 | ||
1136 | return returnValue; | |
1137 | } |