Commit | Line | Data |
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177ed6dd BJ |
1 | /* |
2 | # define DEB | |
3 | /* | |
4 | ** TSET -- set terminal modes | |
5 | ** | |
6 | ** This program does sophisticated terminal initialization. | |
7 | ** I recommend that you include it in your .start_up or .login | |
8 | ** file to initialize whatever terminal you are on. | |
9 | ** | |
10 | ** There are several features: | |
11 | ** | |
12 | ** A special file or sequence (as controlled by the ttycap file) | |
13 | ** is sent to the terminal. | |
14 | ** | |
15 | ** Mode bits are set on a per-terminal_type basis (much better | |
16 | ** than UNIX itself). This allows special delays, automatic | |
17 | ** tabs, etc. | |
18 | ** | |
19 | ** Erase and Kill characters can be set to whatever you want. | |
20 | ** Default is to change erase to control-H on a terminal which | |
21 | ** can overstrike, and leave it alone on anything else. Kill | |
22 | ** is always left alone unless specifically requested. These | |
23 | ** characters can be represented as "^X" meaning control-X; | |
24 | ** X is any character. | |
25 | ** | |
26 | ** Terminals which are dialups or plugboard types can be aliased | |
27 | ** to whatever type you may have in your home or office. Thus, | |
28 | ** if you know that when you dial up you will always be on a | |
29 | ** TI 733, you can specify that fact to tset. You can represent | |
30 | ** a type as "?type". This will ask you what type you want it | |
31 | ** to be -- if you reply with just a newline, it will default | |
32 | ** to the type given. | |
33 | ** | |
34 | ** The htmp file, used by ex, etc., can be updated. | |
35 | ** | |
36 | ** The current terminal type can be queried. | |
37 | ** | |
38 | ** Usage: | |
39 | ** tset [-] [-EC] [-eC] [-kC] [-s] [-h] [-u] [-r] | |
40 | ** [-m [ident] [test baudrate] :type] | |
41 | ** [-Q] [-I] [-S] [type] | |
42 | ** | |
43 | ** In systems with environments, use: | |
44 | ** `tset -s ...` | |
45 | ** Actually, this doesn't work because of a shell bug. | |
46 | ** Instead, use: | |
47 | ** tset -s ... > tset.tmp | |
48 | ** source tset.tmp | |
49 | ** rm tset.tmp | |
50 | ** or: | |
51 | ** set noglob | |
52 | ** set term=(`tset -S ....`) | |
53 | ** setenv TERM $term[1] | |
54 | ** setenv TERMCAP "$term[2]" | |
55 | ** unset term | |
56 | ** unset noglob | |
57 | ** | |
58 | ** Positional Parameters: | |
59 | ** type -- the terminal type to force. If this is | |
60 | ** specified, initialization is for this | |
61 | ** terminal type. | |
62 | ** | |
63 | ** Flags: | |
64 | ** - -- report terminal type. Whatever type is | |
65 | ** decided on is reported. If no other flags | |
66 | ** are stated, the only affect is to write | |
67 | ** the terminal type on the standard output. | |
68 | ** -r -- report to user in addition to other flags. | |
69 | ** -EC -- set the erase character to C on all terminals | |
70 | ** except those which cannot backspace (e.g., | |
71 | ** a TTY 33). C defaults to control-H. | |
72 | ** -eC -- set the erase character to C on all terminals. | |
73 | ** C defaults to control-H. If neither -E or -e | |
74 | ** are specified, the erase character is set to | |
75 | ** control-H if the terminal can both backspace | |
76 | ** and not overstrike (e.g., a CRT). If the erase | |
77 | ** character is NULL (zero byte), it will be reset | |
78 | ** to '#' if nothing else is specified. | |
79 | ** -kC -- set the kill character to C on all terminals. | |
80 | ** Default for C is control-X. If not specified, | |
81 | ** the kill character is untouched; however, if | |
82 | ** not specified and the kill character is NULL | |
83 | ** (zero byte), the kill character is set to '@'. | |
84 | ** -iC -- reserved for setable interrupt character. | |
85 | ** -qC -- reserved for setable quit character. | |
86 | ** -m -- map the system identified type to some user | |
87 | ** specified type. The mapping can be baud rate | |
88 | ** dependent. This replaces the old -d, -p flags. | |
89 | ** (-d type -> -m dialup:type) | |
90 | ** (-p type -> -m plug:type) | |
91 | ** Syntax: -m identifier [test baudrate] :type | |
92 | ** where: ``identifier'' is whatever is found in | |
93 | ** /etc/ttytype for this port, (abscence of an identifier | |
94 | ** matches any identifier); ``test'' may be any combination | |
95 | ** of > = < ! @; ``baudrate'' is as with stty(1); | |
96 | ** ``type'' is the actual terminal type to use if the | |
97 | ** mapping condition is met. Multiple maps are scanned | |
98 | ** in order and the first match prevails. | |
99 | ** -h -- don't read htmp file. Normally the terminal type | |
100 | ** is determined by reading the htmp file or the | |
101 | ** environment (unless some mapping is specified). | |
102 | ** This forces a read of the ttytype file -- useful | |
103 | ** when htmp is somehow wrong. | |
104 | ** -u -- don't update htmp. It seemed like this should | |
105 | ** be put in. Note that htmp is never actually | |
106 | ** written if there are no changes, so don't bother | |
107 | ** bother using this for efficiency reasons alone. | |
108 | ** -s -- output setenv commands for TERM. This can be | |
109 | ** used with | |
110 | ** `tset -s ...` | |
111 | ** and is to be prefered to: | |
112 | ** setenv TERM `tset - ...` | |
113 | ** because -s sets the TERMCAP variable also. | |
114 | ** -S -- Similar to -s but outputs 2 strings suitable for | |
115 | ** use in csh .login files as follows: | |
116 | ** set noglob | |
117 | ** set term=(`tset -S .....`) | |
118 | ** setenv TERM $term[1] | |
119 | ** setenv TERMCAP "$term[2]" | |
120 | ** unset term | |
121 | ** unset noglob | |
122 | ** -Q -- be quiet. don't output 'Erase set to' etc. | |
123 | ** -I -- don't do terminal initialization (is & if | |
124 | ** strings). | |
125 | ** | |
126 | ** Files: | |
127 | ** /etc/ttytype | |
128 | ** contains a terminal id -> terminal type | |
129 | ** mapping; used when any user mapping is specified, | |
130 | ** or the environment doesn't have TERM set. | |
131 | ** /etc/termcap | |
132 | ** a terminal_type -> terminal_capabilities | |
133 | ** mapping. | |
134 | ** | |
135 | ** Return Codes: | |
136 | ** -1 -- couldn't open ttycap. | |
137 | ** 1 -- bad terminal type, or standard output not tty. | |
138 | ** 0 -- ok. | |
139 | ** | |
140 | ** Defined Constants: | |
141 | ** DIALUP -- the type code for a dialup port | |
142 | ** PLUGBOARD -- the code for a plugboard port. | |
143 | ** ARPANET -- the code for an arpanet port. | |
144 | ** BACKSPACE -- control-H, the default for -e. | |
145 | ** CONTROLX -- control-X, the default for -k. | |
146 | ** OLDERASE -- the system default erase character. | |
147 | ** OLDKILL -- the system default kill character. | |
148 | ** FILEDES -- the file descriptor to do the operation | |
149 | ** on, nominally 1 or 2. | |
150 | ** STDOUT -- the standard output file descriptor. | |
151 | ** UIDMASK -- the bit pattern to mask with the getuid() | |
152 | ** call to get just the user id. | |
153 | ** GTTYN -- defines file containing generalized ttynames | |
154 | ** and compiles code to look there. | |
155 | ** | |
156 | ** Requires: | |
157 | ** Routines to handle htmp, ttytype, and ttycap. | |
158 | ** | |
159 | ** Compilation Flags: | |
160 | ** OLDDIALUP -- accept the -d flag. Map "sd" to "dialup". | |
161 | ** OLDPLUGBOARD -- accept the -p flag. Map "sp" to "plugboard". | |
162 | ** OLDARPANET -- accept the -a flag. Map "sa" to "arpanet". | |
163 | ** OLDFLAGS -- must be defined to compile code for any of | |
164 | ** the -d, -p, or -a flags. | |
165 | ** FULLLOGIN -- if defined, login sets the ttytype from | |
166 | ** /etc/ttytype file. | |
167 | ** V6 -- if clear, use environments, not htmp. | |
168 | ** also use TIOCSETN rather than stty to avoid flushing | |
169 | ** GTTYN -- if set, compiles code to look at /etc/ttytype. | |
170 | ** | |
171 | ** Trace Flags: | |
172 | ** none | |
173 | ** | |
174 | ** Diagnostics: | |
175 | ** Bad flag | |
176 | ** An incorrect option was specified. | |
177 | ** Too few args | |
178 | ** more command line arguments are required. | |
179 | ** Unexpected arg | |
180 | ** wrong type of argument was encountered. | |
181 | ** Cannot open ... | |
182 | ** The specified file could not be openned. | |
183 | ** Type ... unknown | |
184 | ** An unknown terminal type was specified. | |
185 | ** Cannot update htmp | |
186 | ** Cannot update htmp file when the standard | |
187 | ** output is not a terminal. | |
188 | ** Erase set to ... | |
189 | ** Telling that the erase character has been | |
190 | ** set to the specified character. | |
191 | ** Kill set to ... | |
192 | ** Ditto for kill | |
193 | ** Erase is ... Kill is ... | |
194 | ** Tells that the erase/kill characters were | |
195 | ** wierd before, but they are being left as-is. | |
196 | ** Not a terminal | |
197 | ** Set if FILEDES is not a terminal. | |
198 | ** | |
199 | ** Compilation Instructions: | |
200 | ** cc -n -O tset.c -ltermlib | |
201 | ** mv a.out tset | |
202 | ** chown bin tset | |
203 | ** chmod 4755 tset | |
204 | ** | |
205 | ** where 'bin' should be whoever owns the 'htmp' file. | |
206 | ** If 'htmp' is 666, then tset need not be setuid. | |
207 | ** | |
208 | ** Author: | |
209 | ** Eric Allman | |
210 | ** Electronics Research Labs | |
211 | ** U.C. Berkeley | |
212 | ** | |
213 | ** History: | |
214 | ** 7/80 -- '-S' added. -m mapping added. TERMCAP string | |
215 | ** cleaned up. | |
216 | ** 3/80 -- Changed to use tputs. Prc & flush added. | |
217 | ** 10/79 -- '-s' option extended to handle TERMCAP | |
218 | ** variable, set noglob, quote the entry, | |
219 | ** and know about the Bourne shell. Terminal | |
220 | ** initialization moved to before any information | |
221 | ** output so screen clears would not screw you. | |
222 | ** '-Q' option added. | |
223 | ** 8/79 -- '-' option alone changed to only output | |
224 | ** type. '-s' option added. 'VERSION7' | |
225 | ** changed to 'V6' for compatibility. | |
226 | ** 12/78 -- modified for eventual migration to VAX/UNIX, | |
227 | ** so the '-' option is changed to output only | |
228 | ** the terminal type to STDOUT instead of | |
229 | ** FILEDES. FULLLOGIN flag added. | |
230 | ** 9/78 -- '-' and '-p' options added (now fully | |
231 | ** compatible with ttytype!), and spaces are | |
232 | ** permitted between the -d and the type. | |
233 | ** 8/78 -- The sense of -h and -u were reversed, and the | |
234 | ** -f flag is dropped -- same effect is available | |
235 | ** by just stating the terminal type. | |
236 | ** 10/77 -- Written. | |
237 | */ | |
238 | ||
239 | /* | |
240 | # define FULLLOGIN 1 | |
241 | */ | |
242 | # ifndef V6 | |
243 | # define GTTYN "/etc/ttytype" | |
244 | # endif | |
245 | ||
246 | # include <ctype.h> | |
247 | # include <sgtty.h> | |
248 | # include <stdio.h> | |
249 | ||
250 | # define BACKSPACE ('H' & 037) | |
251 | # define CONTROLX ('X' & 037) | |
252 | # define OLDERASE '#' | |
253 | # define OLDKILL '@' | |
254 | ||
255 | # define FILEDES 2 | |
256 | # define STDOUT 1 | |
257 | ||
258 | # ifdef V6 | |
259 | # define UIDMASK 0377 | |
260 | # else | |
261 | # define UIDMASK -1 | |
262 | # endif | |
263 | ||
264 | # define DEFTYPE "unknown" | |
265 | # define USAGE\ | |
266 | "usage: tset [-] [-hrsuIQS] [-eC] [-kC] [-m [ident][test speed]:type] [type]\n" | |
267 | ||
268 | # define DIALUP "dialup" | |
269 | # define OLDDIALUP "sd" | |
270 | # define PLUGBOARD "plugboard" | |
271 | # define OLDPLUGBOARD "sp" | |
272 | /*** | |
273 | # define ARPANET "arpanet" | |
274 | # define OLDARPANET "sa" | |
275 | ***/ | |
276 | # define OLDFLAGS | |
277 | ||
278 | ||
279 | ||
280 | # ifdef GTTYN | |
281 | typedef char *ttyid_t; | |
282 | # define NOTTY 0 | |
283 | # else | |
284 | typedef char ttyid_t; | |
285 | # define NOTTY 'x' | |
286 | # endif | |
287 | ||
288 | /* | |
289 | * Baud Rate Conditionals | |
290 | */ | |
291 | # define ANY 0 | |
292 | # define GT 1 | |
293 | # define EQ 2 | |
294 | # define LT 4 | |
295 | # define GE (GT|EQ) | |
296 | # define LE (LT|EQ) | |
297 | # define NE (GT|LT) | |
298 | # define ALL (GT|EQ|LT) | |
299 | ||
300 | ||
301 | ||
302 | # define NMAP 10 | |
303 | ||
304 | struct map { | |
305 | char *Ident; | |
306 | char Test; | |
307 | char Speed; | |
308 | char *Type; | |
309 | } map[NMAP]; | |
310 | ||
311 | struct map *Map = map; | |
312 | ||
313 | struct | |
314 | { | |
315 | char *string; | |
316 | int speed; | |
317 | } speeds[] = { | |
318 | "0", B0, | |
319 | "50", B50, | |
320 | "75", B75, | |
321 | "110", B110, | |
322 | "134", B134, | |
323 | "134.5",B134, | |
324 | "150", B150, | |
325 | "200", B200, | |
326 | "300", B300, | |
327 | "600", B600, | |
328 | "1200", B1200, | |
329 | "1800", B1800, | |
330 | "2400", B2400, | |
331 | "4800", B4800, | |
332 | "9600", B9600, | |
333 | "exta", EXTA, | |
334 | "extb", EXTB, | |
335 | 0, | |
336 | }; | |
337 | ||
338 | char Erase_char; /* new erase character */ | |
339 | char Kill_char; /* new kill character */ | |
340 | char Specialerase; /* set => Erase_char only on terminals with backspace */ | |
341 | ||
342 | ttyid_t Ttyid = NOTTY; /* terminal identifier */ | |
343 | char *TtyType; /* type of terminal */ | |
344 | char *DefType; /* default type if none other computed */ | |
345 | char *NewType; /* mapping identifier based on old flags */ | |
346 | int Dash_u; /* don't update htmp */ | |
347 | int Dash_h; /* don't read htmp */ | |
348 | int DoSetenv; /* output setenv commands */ | |
349 | int BeQuiet; /* be quiet */ | |
350 | int NoInit; /* don't output initialization string */ | |
351 | int Report; /* report current type */ | |
352 | int Ureport; /* report to user */ | |
353 | int RepOnly; /* report only */ | |
354 | int CmndLine; /* output full command lines (-s option) */ | |
355 | int Ask; /* ask user for termtype */ | |
356 | ||
357 | # define CAPBUFSIZ 1024 | |
358 | char Capbuf[CAPBUFSIZ]; /* line from /etc/termcap for this TtyType */ | |
359 | char *Ttycap; /* termcap line from termcap or environ */ | |
360 | ||
361 | struct delay | |
362 | { | |
363 | int d_delay; | |
364 | int d_bits; | |
365 | }; | |
366 | ||
367 | # include "tset.delays.h" | |
368 | ||
369 | ||
370 | ||
371 | main(argc, argv) | |
372 | int argc; | |
373 | char *argv[]; | |
374 | { | |
375 | struct sgttyb mode; | |
376 | struct sgttyb oldmode; | |
377 | char buf[256]; | |
378 | auto char *bufp; | |
379 | register char *p; | |
380 | char *command; | |
381 | register int i; | |
382 | int Break; | |
383 | int Not; | |
384 | int Mapped; | |
385 | extern char *nextarg(); | |
386 | extern char *mapped(); | |
387 | # ifdef V6 | |
388 | extern char *hsgettype(); | |
389 | # else | |
390 | extern char *getenv(); | |
391 | # endif | |
392 | # ifdef GTTYN | |
393 | extern char *stypeof(); | |
394 | extern char *ttyname(); | |
395 | extern char *tgetstr(); | |
396 | # endif | |
397 | char bs_char; | |
398 | int csh; | |
399 | extern prc(); | |
400 | extern char PC; | |
401 | extern short ospeed; | |
402 | ||
403 | if (gtty(FILEDES, &mode) < 0) | |
404 | { | |
405 | prs("Not a terminal\n"); | |
406 | exit(1); | |
407 | } | |
408 | bmove(&mode, &oldmode, sizeof mode); | |
409 | ospeed = mode.sg_ospeed; | |
410 | ||
411 | /* scan argument list and collect flags */ | |
412 | command = argv[0]; | |
413 | if (argc == 2 && argv[1][0] == '-' && argv[1][1] == '\0') | |
414 | { | |
415 | RepOnly++; | |
416 | Dash_u++; | |
417 | } | |
418 | argc--; | |
419 | while (--argc >= 0) | |
420 | { | |
421 | p = *++argv; | |
422 | if (*p == '-') | |
423 | { | |
424 | if (*++p == NULL) | |
425 | Report++; /* report current terminal type */ | |
426 | else while (*p) switch (*p++) | |
427 | { | |
428 | ||
429 | case 'r': /* report to user */ | |
430 | Ureport++; | |
431 | continue; | |
432 | ||
433 | case 'E': /* special erase: operate on all but TTY33 */ | |
434 | Specialerase++; | |
435 | /* explicit fall-through to -e case */ | |
436 | ||
437 | case 'e': /* erase character */ | |
438 | if (*p == NULL) | |
439 | Erase_char = -1; | |
440 | else | |
441 | { | |
442 | if (*p == '^' && p[1] != NULL) | |
443 | Erase_char = *++p & 037; | |
444 | else | |
445 | Erase_char = *p; | |
446 | p++; | |
447 | } | |
448 | continue; | |
449 | ||
450 | case 'k': /* kill character */ | |
451 | if (*p == NULL) | |
452 | Kill_char = CONTROLX; | |
453 | else | |
454 | { | |
455 | if (*p == '^' && p[1] != NULL) | |
456 | Kill_char = *++p & 037; | |
457 | else | |
458 | Kill_char = *p; | |
459 | p++; | |
460 | } | |
461 | continue; | |
462 | ||
463 | # ifdef OLDFLAGS | |
464 | # ifdef OLDDIALUP | |
465 | case 'd': /* dialup type */ | |
466 | NewType = DIALUP; | |
467 | goto mapold; | |
468 | # endif | |
469 | ||
470 | # ifdef OLDPLUGBOARD | |
471 | case 'p': /* plugboard type */ | |
472 | NewType = PLUGBOARD; | |
473 | goto mapold; | |
474 | # endif | |
475 | ||
476 | # ifdef OLDARPANET | |
477 | case 'a': /* arpanet type */ | |
478 | Newtype = ARPANET; | |
479 | goto mapold; | |
480 | # endif | |
481 | ||
482 | mapold: Map->Ident = NewType; | |
483 | Map->Test = ALL; | |
484 | if (*p == NULL) | |
485 | { | |
486 | p = nextarg(argc--, argv++); | |
487 | } | |
488 | Map->Type = p; | |
489 | Map++; | |
490 | Mapped++; | |
491 | p = ""; | |
492 | continue; | |
493 | # endif | |
494 | ||
495 | case 'm': /* map identifier to type */ | |
496 | /* This code is very loose. Almost no | |
497 | ** syntax checking is done!! However, | |
498 | ** illegal syntax will only produce | |
499 | ** weird results. | |
500 | */ | |
501 | if (*p == NULL) | |
502 | { | |
503 | p = nextarg(argc--, argv++); | |
504 | } | |
505 | if (isalnum(*p)) | |
506 | { | |
507 | Map->Ident = p; /* identifier */ | |
508 | while (isalnum(*p)) p++; | |
509 | } | |
510 | else | |
511 | Map->Ident = ""; | |
512 | Break = 0; | |
513 | Not = 0; | |
514 | while (!Break) switch (*p) | |
515 | { | |
516 | case NULL: | |
517 | p = nextarg(argc--, argv++); | |
518 | continue; | |
519 | ||
520 | case ':': /* mapped type */ | |
521 | *p++ = NULL; | |
522 | Break++; | |
523 | continue; | |
524 | ||
525 | case '>': /* conditional */ | |
526 | Map->Test |= GT; | |
527 | *p++ = NULL; | |
528 | continue; | |
529 | ||
530 | case '<': /* conditional */ | |
531 | Map->Test |= LT; | |
532 | *p++ = NULL; | |
533 | continue; | |
534 | ||
535 | case '=': /* conditional */ | |
536 | case '@': | |
537 | Map->Test |= EQ; | |
538 | *p++ = NULL; | |
539 | continue; | |
540 | ||
541 | case '!': /* invert conditions */ | |
542 | Not = ~Not; | |
543 | *p++ = NULL; | |
544 | continue; | |
545 | ||
546 | case 'B': /* Baud rate */ | |
547 | p++; | |
548 | /* intentional fallthru */ | |
549 | default: | |
550 | if (isdigit(*p) || *p == 'e') | |
551 | { | |
552 | Map->Speed = baudrate(p); | |
553 | while (isalnum(*p) || *p == '.') | |
554 | p++; | |
555 | } | |
556 | else | |
557 | Break++; | |
558 | continue; | |
559 | } | |
560 | if (Not) /* invert sense of test */ | |
561 | { | |
562 | Map->Test = (~(Map->Test))&ALL; | |
563 | } | |
564 | if (*p == NULL) | |
565 | { | |
566 | p = nextarg(argc--, argv++); | |
567 | } | |
568 | Map->Type = p; | |
569 | p = ""; | |
570 | Map++; | |
571 | Mapped++; | |
572 | continue; | |
573 | ||
574 | case 'h': /* don't get type from htmp or env */ | |
575 | Dash_h++; | |
576 | continue; | |
577 | ||
578 | case 'u': /* don't update htmp */ | |
579 | Dash_u++; | |
580 | continue; | |
581 | ||
582 | case 's': /* output setenv commands */ | |
583 | DoSetenv++; | |
584 | CmndLine++; | |
585 | continue; | |
586 | ||
587 | case 'S': /* output setenv strings */ | |
588 | DoSetenv++; | |
589 | CmndLine=0; | |
590 | continue; | |
591 | ||
592 | case 'Q': /* be quiet */ | |
593 | BeQuiet++; | |
594 | continue; | |
595 | ||
596 | case 'I': /* no initialization */ | |
597 | NoInit++; | |
598 | continue; | |
599 | ||
600 | case 'A': /* Ask user */ | |
601 | Ask++; | |
602 | continue; | |
603 | ||
604 | default: | |
605 | *p-- = NULL; | |
606 | fatal("Bad flag -", p); | |
607 | } | |
608 | } | |
609 | else | |
610 | { | |
611 | /* terminal type */ | |
612 | DefType = p; | |
613 | } | |
614 | } | |
615 | ||
616 | if (DefType) | |
617 | { | |
618 | if (Mapped) | |
619 | { | |
620 | Map->Ident = ""; /* means "map any type" */ | |
621 | Map->Test = ALL; /* at all baud rates */ | |
622 | Map->Type = DefType; /* to the default type */ | |
623 | } | |
624 | else | |
625 | TtyType = DefType; | |
626 | } | |
627 | ||
628 | # ifndef V6 | |
629 | /* get current idea of terminal type from environment */ | |
630 | if (!Dash_h && !Mapped && TtyType == 0) | |
631 | TtyType = getenv("TERM"); | |
632 | # endif | |
633 | ||
634 | /* determine terminal id if needed */ | |
635 | # ifdef V6 | |
636 | if (Ttyid == NOTTY && (TtyType == 0 || !Dash_h || !Dash_u)) | |
637 | Ttyid = ttyn(FILEDES); | |
638 | # else | |
639 | if (!RepOnly && Ttyid == NOTTY && (TtyType == 0 || !Dash_h)) | |
640 | Ttyid = ttyname(FILEDES); | |
641 | # endif | |
642 | ||
643 | # ifdef V6 | |
644 | /* get htmp if ever used */ | |
645 | if (!Dash_u || (TtyType == 0 && !Dash_h)) | |
646 | { | |
647 | /* get htmp entry -- if error or wrong user use ttytype */ | |
648 | if (Ttyid == NOTTY || hget(Ttyid) < 0 || | |
649 | hgettype() == 0 || hgetuid() != (getuid() & UIDMASK)) | |
650 | Dash_h++; | |
651 | } | |
652 | ||
653 | /* find terminal type (if not already known) */ | |
654 | if (TtyType == 0 && !Dash_h) | |
655 | { | |
656 | /* get type from /etc/htmp */ | |
657 | TtyType = hsgettype(); | |
658 | } | |
659 | # endif | |
660 | ||
661 | # ifdef GTTYN | |
662 | /* If still undefined, look at /etc/ttytype */ | |
663 | if (TtyType == 0) | |
664 | { | |
665 | TtyType = stypeof(Ttyid); | |
666 | } | |
667 | # endif | |
668 | ||
669 | /* If still undefined, use DEFTYPE */ | |
670 | if (TtyType == 0) | |
671 | { | |
672 | TtyType = DEFTYPE; | |
673 | } | |
674 | ||
675 | /* check for dialup or other mapping */ | |
676 | if (Mapped) | |
677 | TtyType = mapped(TtyType, ospeed); | |
678 | ||
679 | /* TtyType now contains a pointer to the type of the terminal */ | |
680 | /* If the first character is '?', ask the user */ | |
681 | if (TtyType[0] == '?') | |
682 | { | |
683 | Ask++; | |
684 | TtyType++; | |
685 | if (TtyType[0] == '\0') | |
686 | TtyType = DEFTYPE; | |
687 | } | |
688 | if (Ask) | |
689 | { | |
690 | prs("TERM = ("); | |
691 | prs(TtyType); | |
692 | prs(") "); | |
693 | flush(); | |
694 | ||
695 | /* read the terminal. If not empty, set type */ | |
696 | i = read(2, buf, sizeof buf - 1); | |
697 | if (i >= 0) | |
698 | { | |
699 | if (buf[i - 1] == '\n') | |
700 | i--; | |
701 | buf[i] = '\0'; | |
702 | if (buf[0] != '\0') | |
703 | TtyType = buf; | |
704 | } | |
705 | } | |
706 | ||
707 | if (Ttycap == 0) | |
708 | { | |
709 | /* get terminal capabilities */ | |
710 | switch (tgetent(Capbuf, TtyType)) | |
711 | { | |
712 | case -1: | |
713 | prs("Cannot open termcap file\n"); | |
714 | flush(); | |
715 | exit(-1); | |
716 | ||
717 | case 0: | |
718 | prs("Type "); | |
719 | prs(TtyType); | |
720 | prs(" unknown\n"); | |
721 | flush(); | |
722 | exit(1); | |
723 | } | |
724 | Ttycap = Capbuf; | |
725 | } | |
726 | ||
727 | if (!RepOnly) | |
728 | { | |
729 | /* determine erase and kill characters */ | |
730 | if (Specialerase && !tgetflag("bs")) | |
731 | Erase_char = 0; | |
732 | bufp = buf; | |
733 | p = tgetstr("kb", &bufp); | |
734 | if (p == NULL || p[1] != '\0') | |
735 | p = tgetstr("bc", &bufp); | |
736 | if (p != NULL && p[1] == '\0') | |
737 | bs_char = p[0]; | |
738 | else if (tgetflag("bs")) | |
739 | bs_char = BACKSPACE; | |
740 | else | |
741 | bs_char = 0; | |
742 | if (Erase_char == 0 && !tgetflag("os") && mode.sg_erase == OLDERASE) | |
743 | { | |
744 | if (tgetflag("bs") || bs_char != 0) | |
745 | Erase_char = -1; | |
746 | } | |
747 | if (Erase_char < 0) | |
748 | Erase_char = (bs_char != 0) ? bs_char : BACKSPACE; | |
749 | ||
750 | if (mode.sg_erase == 0) | |
751 | mode.sg_erase = OLDERASE; | |
752 | if (Erase_char != 0) | |
753 | mode.sg_erase = Erase_char; | |
754 | ||
755 | if (mode.sg_kill == 0) | |
756 | mode.sg_kill = OLDKILL; | |
757 | if (Kill_char != 0) | |
758 | mode.sg_kill = Kill_char; | |
759 | ||
760 | /* set modes */ | |
761 | setdelay("dC", CRdelay, CRbits, &mode.sg_flags); | |
762 | setdelay("dN", NLdelay, NLbits, &mode.sg_flags); | |
763 | setdelay("dB", BSdelay, BSbits, &mode.sg_flags); | |
764 | setdelay("dF", FFdelay, FFbits, &mode.sg_flags); | |
765 | setdelay("dT", TBdelay, TBbits, &mode.sg_flags); | |
766 | if (tgetflag("UC") || command[0] == 'T') | |
767 | mode.sg_flags |= LCASE; | |
768 | else if (tgetflag("LC")) | |
769 | mode.sg_flags &= ~LCASE; | |
770 | mode.sg_flags &= ~(EVENP | ODDP | RAW); | |
771 | # ifndef V6 | |
772 | mode.sg_flags &= ~CBREAK; | |
773 | # endif | |
774 | if (tgetflag("EP")) | |
775 | mode.sg_flags |= EVENP; | |
776 | if (tgetflag("OP")) | |
777 | mode.sg_flags |= ODDP; | |
778 | if ((mode.sg_flags & (EVENP | ODDP)) == 0) | |
779 | mode.sg_flags |= EVENP | ODDP; | |
780 | mode.sg_flags |= CRMOD | ECHO | XTABS; | |
781 | if (tgetflag("NL")) /* new line, not line feed */ | |
782 | mode.sg_flags &= ~CRMOD; | |
783 | if (tgetflag("HD")) /* half duplex */ | |
784 | mode.sg_flags &= ~ECHO; | |
785 | if (tgetflag("pt")) /* print tabs */ | |
786 | mode.sg_flags &= ~XTABS; | |
787 | if (!bequal(&mode, &oldmode, sizeof mode)) | |
788 | # ifndef V6 | |
789 | ioctl(FILEDES, TIOCSETN, &mode); | |
790 | # else | |
791 | stty(FILEDES, &mode); | |
792 | # endif | |
793 | ||
794 | /* get pad character */ | |
795 | bufp = buf; | |
796 | if (tgetstr("pc", &bufp) != 0) | |
797 | PC = buf[0]; | |
798 | ||
799 | /* output startup string */ | |
800 | if (!NoInit) | |
801 | { | |
802 | bufp = buf; | |
803 | if (tgetstr("is", &bufp) != 0) | |
804 | tputs(buf, 0, prc); | |
805 | flush(); | |
806 | bufp = buf; | |
807 | if (tgetstr("if", &bufp) != 0) | |
808 | cat(buf); | |
809 | sleep(1); /* let terminal settle down */ | |
810 | } | |
811 | ||
812 | /* set up environment for the shell we are using */ | |
813 | /* (this code is rather heuristic) */ | |
814 | csh = 0; | |
815 | if (DoSetenv) | |
816 | { | |
817 | # ifndef V6 | |
818 | char *sh; | |
819 | ||
820 | if ((sh = getenv("SHELL")) && (i = strlen(sh)) >= 3) | |
821 | { | |
822 | p = &sh[i-3]; | |
823 | if ((csh = sequal(p, "csh")) && CmndLine) | |
824 | write(STDOUT, "set noglob;\n", 12); | |
825 | } | |
826 | if (!csh) | |
827 | # endif | |
828 | /* running system shell */ | |
829 | write(STDOUT, "export TERMCAP TERM;\n", 21); | |
830 | } | |
831 | } | |
832 | ||
833 | /* report type if appropriate */ | |
834 | if (DoSetenv || Report || Ureport) | |
835 | { | |
836 | /* find first alias (if any) */ | |
837 | for (p = Ttycap; *p != 0 && *p != '|' && *p != ':'; p++) | |
838 | continue; | |
839 | if (*p == 0 || *p == ':') | |
840 | p = Ttycap; | |
841 | else | |
842 | p++; | |
843 | bufp = p; | |
844 | while (*p != '|' && *p != ':' && *p != 0) | |
845 | p++; | |
846 | i = *p; | |
847 | if (DoSetenv) | |
848 | { | |
849 | if (csh) | |
850 | { | |
851 | if (CmndLine) | |
852 | write(STDOUT, "setenv TERM ", 12); | |
853 | write(STDOUT, bufp, p - bufp); | |
854 | write(STDOUT, " ", 1); | |
855 | if (CmndLine) | |
856 | write(STDOUT, ";\n", 2); | |
857 | } | |
858 | else | |
859 | { | |
860 | write(STDOUT, "TERM=", 5); | |
861 | write(STDOUT, bufp, p - bufp); | |
862 | write(STDOUT, ";\n", 2); | |
863 | } | |
864 | } | |
865 | if (Report && !DoSetenv) | |
866 | { | |
867 | write(STDOUT, bufp, p - bufp); | |
868 | write(STDOUT, "\n", 1); | |
869 | } | |
870 | if (Ureport) | |
871 | { | |
872 | *p = '\0'; | |
873 | prs("Terminal type is "); | |
874 | prs(bufp); | |
875 | prs("\n"); | |
876 | flush(); | |
877 | } | |
878 | *p = i; | |
879 | if (DoSetenv) | |
880 | { | |
881 | if (csh) | |
882 | { | |
883 | if (CmndLine) | |
884 | write(STDOUT, "setenv TERMCAP '", 16); | |
885 | } | |
886 | else | |
887 | write(STDOUT, "TERMCAP='", 9); | |
888 | wrtermcap(Ttycap); | |
889 | if (csh) | |
890 | { | |
891 | if (CmndLine) | |
892 | { | |
893 | write(STDOUT, "';\n", 3); | |
894 | write(STDOUT, "unset noglob;\n", 14); | |
895 | } | |
896 | } | |
897 | else | |
898 | write(STDOUT, "';\n", 3); | |
899 | } | |
900 | } | |
901 | ||
902 | if (RepOnly) | |
903 | exit(0); | |
904 | ||
905 | /* tell about changing erase and kill characters */ | |
906 | reportek("Erase", mode.sg_erase, oldmode.sg_erase, OLDERASE); | |
907 | reportek("Kill", mode.sg_kill, oldmode.sg_kill, OLDKILL); | |
908 | ||
909 | # ifdef V6 | |
910 | /* update htmp */ | |
911 | if (!Dash_u) | |
912 | { | |
913 | if (Ttyid == 0) | |
914 | Ttyid = ttyn(FILEDES); | |
915 | if (Ttyid == 'x') | |
916 | { | |
917 | prs("Cannot update htmp\n"); | |
918 | flush(); | |
919 | } | |
920 | else | |
921 | { | |
922 | /* update htmp file only if changed */ | |
923 | if (!bequal(Capbuf, hsgettype(), 2)) | |
924 | { | |
925 | hsettype(Capbuf[0] | (Capbuf[1] << 8)); | |
926 | hput(Ttyid); | |
927 | } | |
928 | } | |
929 | } | |
930 | # endif | |
931 | ||
932 | exit(0); | |
933 | } | |
934 | ||
935 | reportek(name, new, old, def) | |
936 | char *name; | |
937 | char old; | |
938 | char new; | |
939 | char def; | |
940 | { | |
941 | register char o; | |
942 | register char n; | |
943 | register char *p; | |
944 | ||
945 | if (BeQuiet) | |
946 | return; | |
947 | o = old; | |
948 | n = new; | |
949 | ||
950 | if (o == n && n == def) | |
951 | return; | |
952 | prs(name); | |
953 | if (o == n) | |
954 | prs(" is "); | |
955 | else | |
956 | prs(" set to "); | |
957 | if (n < 040) | |
958 | { | |
959 | prs("control-"); | |
960 | n = (n & 037) | 0100; | |
961 | } else if (n == 0177) { | |
962 | prs("delete\n"); | |
963 | flush(); | |
964 | return; | |
965 | } | |
966 | p = "x\n"; | |
967 | p[0] = n; | |
968 | prs(p); | |
969 | flush(); | |
970 | } | |
971 | ||
972 | ||
973 | ||
974 | ||
975 | setdelay(cap, dtab, bits, flags) | |
976 | char *cap; | |
977 | struct delay dtab[]; | |
978 | int bits; | |
979 | int *flags; | |
980 | { | |
981 | register int i; | |
982 | register struct delay *p; | |
983 | ||
984 | /* see if this capability exists at all */ | |
985 | i = tgetnum(cap); | |
986 | if (i < 0) | |
987 | i = 0; | |
988 | ||
989 | /* clear out the bits, replace with new ones */ | |
990 | *flags &= ~bits; | |
991 | ||
992 | /* scan dtab for first entry with adequate delay */ | |
993 | for (p = dtab; p->d_delay >= 0; p++) | |
994 | { | |
995 | if (p->d_delay >= i) | |
996 | { | |
997 | p++; | |
998 | break; | |
999 | } | |
1000 | } | |
1001 | ||
1002 | /* use last entry if none will do */ | |
1003 | *flags |= (--p)->d_bits; | |
1004 | } | |
1005 | ||
1006 | ||
1007 | prs(s) | |
1008 | char *s; | |
1009 | { | |
1010 | while (*s != '\0') | |
1011 | prc(*s++); | |
1012 | } | |
1013 | ||
1014 | ||
1015 | char OutBuf[256]; | |
1016 | int OutPtr; | |
1017 | ||
1018 | prc(c) | |
1019 | char c; | |
1020 | { | |
1021 | OutBuf[OutPtr++] = c; | |
1022 | if (OutPtr >= sizeof OutBuf) | |
1023 | flush(); | |
1024 | } | |
1025 | ||
1026 | flush() | |
1027 | { | |
1028 | if (OutPtr > 0) | |
1029 | write(2, OutBuf, OutPtr); | |
1030 | OutPtr = 0; | |
1031 | } | |
1032 | ||
1033 | ||
1034 | cat(file) | |
1035 | char *file; | |
1036 | { | |
1037 | register int fd; | |
1038 | register int i; | |
1039 | char buf[BUFSIZ]; | |
1040 | ||
1041 | fd = open(file, 0); | |
1042 | if (fd < 0) | |
1043 | { | |
1044 | prs("Cannot open "); | |
1045 | prs(file); | |
1046 | prs("\n"); | |
1047 | flush(); | |
1048 | exit(-1); | |
1049 | } | |
1050 | ||
1051 | flush(); | |
1052 | while ((i = read(fd, buf, BUFSIZ)) > 0) | |
1053 | write(FILEDES, buf, i); | |
1054 | ||
1055 | close(fd); | |
1056 | } | |
1057 | ||
1058 | ||
1059 | ||
1060 | bmove(from, to, length) | |
1061 | char *from; | |
1062 | char *to; | |
1063 | int length; | |
1064 | { | |
1065 | register char *p, *q; | |
1066 | register int i; | |
1067 | ||
1068 | i = length; | |
1069 | p = from; | |
1070 | q = to; | |
1071 | ||
1072 | while (i-- > 0) | |
1073 | *q++ = *p++; | |
1074 | } | |
1075 | ||
1076 | ||
1077 | ||
1078 | bequal(a, b, len) | |
1079 | char *a; | |
1080 | char *b; | |
1081 | int len; | |
1082 | { | |
1083 | register char *p, *q; | |
1084 | register int i; | |
1085 | ||
1086 | i = len; | |
1087 | p = a; | |
1088 | q = b; | |
1089 | ||
1090 | while (*p && *q && (*p == *q) && --i > 0) | |
1091 | { | |
1092 | p++; q++; | |
1093 | } | |
1094 | return ((*p == *q) && i >= 0); | |
1095 | } | |
1096 | ||
1097 | sequal(a, b) | |
1098 | char *a; | |
1099 | char *b; | |
1100 | { | |
1101 | register char *p = a, *q = b; | |
1102 | ||
1103 | while (*p && *q && (*p == *q)) | |
1104 | { | |
1105 | p++; q++; | |
1106 | } | |
1107 | return (*p == *q); | |
1108 | } | |
1109 | ||
1110 | # ifdef GTTYN | |
1111 | char * | |
1112 | stypeof(ttyid) | |
1113 | char *ttyid; | |
1114 | { | |
1115 | static char typebuf[50]; | |
1116 | register char *PortType; | |
1117 | register char *PortName; | |
1118 | register char *TtyId; | |
1119 | register char *p; | |
1120 | register FILE *f; | |
1121 | ||
1122 | if (ttyid == NOTTY) | |
1123 | return (DEFTYPE); | |
1124 | f = fopen(GTTYN, "r"); | |
1125 | if (f == NULL) | |
1126 | return (DEFTYPE); | |
1127 | ||
1128 | /* split off end of name */ | |
1129 | TtyId = ttyid; | |
1130 | while (*ttyid) | |
1131 | if (*ttyid++ == '/') | |
1132 | TtyId = ttyid; | |
1133 | ||
1134 | /* scan the file */ | |
1135 | while (fgets(typebuf, sizeof typebuf, f) != NULL) | |
1136 | { | |
1137 | p = PortType = typebuf; | |
1138 | while (*p && isalnum(*p)) | |
1139 | p++; | |
1140 | *p++ = NULL; | |
1141 | ||
1142 | /* skip separator */ | |
1143 | while (*p && !isalnum(*p)) | |
1144 | p++; | |
1145 | ||
1146 | PortName = p; | |
1147 | /* put NULL at end of name */ | |
1148 | while (*p && isalnum(*p)) | |
1149 | p++; | |
1150 | *p = NULL; | |
1151 | ||
1152 | /* check match on port name */ | |
1153 | if (sequal(PortName, TtyId)) /* found it */ | |
1154 | { | |
1155 | # ifdef OLDDIALUP | |
1156 | if (sequal(PortType, OLDDIALUP)) | |
1157 | PortType = DIALUP; | |
1158 | # endif | |
1159 | ||
1160 | # ifdef OLDPLUGBOARD | |
1161 | if (sequal(PortType, OLDPLUGBOARD)) | |
1162 | PortType = PLUGBOARD; | |
1163 | # endif | |
1164 | ||
1165 | # ifdef OLDARPANET | |
1166 | if (sequal(PortType, OLDARPANET)) | |
1167 | PortType = ARPANET; | |
1168 | # endif | |
1169 | fclose (f); | |
1170 | return(PortType); | |
1171 | } | |
1172 | } | |
1173 | fclose (f); | |
1174 | return (DEFTYPE); | |
1175 | } | |
1176 | # endif | |
1177 | ||
1178 | #define YES 1 | |
1179 | #define NO 0 | |
1180 | /* | |
1181 | * routine to output the string for the environment TERMCAP variable | |
1182 | */ | |
1183 | #define WHITE(c) (c == ' ' || c == '\t') | |
1184 | char delcap[128][2]; | |
1185 | int ncap = 0; | |
1186 | ||
1187 | wrtermcap(bp) | |
1188 | char *bp; | |
1189 | { | |
1190 | char buf[CAPBUFSIZ]; | |
1191 | char *p = buf; | |
1192 | char *tp; | |
1193 | char *putbuf(); | |
1194 | int space, empty; | |
1195 | ||
1196 | /* discard names with blanks */ | |
1197 | /** May not be desireable ? **/ | |
1198 | while (*bp && *bp != ':') { | |
1199 | if (*bp == '|') { | |
1200 | tp = bp+1; | |
1201 | space = NO; | |
1202 | while (*tp && *tp != '|' && *tp != ':') { | |
1203 | space = (space || WHITE(*tp) ); | |
1204 | tp++; | |
1205 | } | |
1206 | if (space) { | |
1207 | bp = tp; | |
1208 | continue; | |
1209 | } | |
1210 | } | |
1211 | *p++ = *bp++; | |
1212 | } | |
1213 | /**/ | |
1214 | ||
1215 | while (*bp) { | |
1216 | switch (*bp) { | |
1217 | case ':': /* discard empty, cancelled or dupl fields */ | |
1218 | tp = bp+1; | |
1219 | empty = YES; | |
1220 | while (*tp && *tp != ':') { | |
1221 | empty = (empty && WHITE(*tp) ); | |
1222 | tp++; | |
1223 | } | |
1224 | if (empty || cancelled(bp+1)) { | |
1225 | bp = tp; | |
1226 | continue; | |
1227 | } | |
1228 | break; | |
1229 | ||
1230 | case ' ': /* no spaces in output */ | |
1231 | p = putbuf(p, "\\040"); | |
1232 | bp++; | |
1233 | continue; | |
1234 | ||
1235 | case '"': /* no quotes in output */ | |
1236 | p = putbuf(p, "\\042"); | |
1237 | bp++; | |
1238 | continue; | |
1239 | ||
1240 | case '\'': /* no quotes in output */ | |
1241 | p = putbuf(p, "\\047"); | |
1242 | bp++; | |
1243 | continue; | |
1244 | ||
1245 | case '\\': | |
1246 | case '^': /* anything following is OK */ | |
1247 | *p++ = *bp++; | |
1248 | } | |
1249 | *p++ = *bp++; | |
1250 | } | |
1251 | write (STDOUT, buf, p-buf); | |
1252 | } | |
1253 | ||
1254 | cancelled(cap) | |
1255 | char *cap; | |
1256 | { | |
1257 | register int i; | |
1258 | ||
1259 | for (i = 0; i < ncap; i++) | |
1260 | { | |
1261 | if (cap[0] == delcap[i][0] && cap[1] == delcap[i][1]) | |
1262 | return (YES); | |
1263 | } | |
1264 | /* delete a second occurrance of the same capability */ | |
1265 | delcap[ncap][0] = cap[0]; | |
1266 | delcap[ncap][1] = cap[1]; | |
1267 | ncap++; | |
1268 | return (cap[2] == '@'); | |
1269 | } | |
1270 | ||
1271 | char * | |
1272 | putbuf(ptr, str) | |
1273 | char *ptr; | |
1274 | char *str; | |
1275 | { | |
1276 | while (*str) | |
1277 | *ptr++ = *str++; | |
1278 | return (ptr); | |
1279 | } | |
1280 | ||
1281 | ||
1282 | baudrate(p) | |
1283 | char *p; | |
1284 | { | |
1285 | char buf[8]; | |
1286 | int i = 0; | |
1287 | ||
1288 | while (i < 7 && (isalnum(*p) || *p == '.')) | |
1289 | buf[i++] = *p++; | |
1290 | buf[i] = NULL; | |
1291 | for (i=0; speeds[i].string; i++) | |
1292 | if (sequal(speeds[i].string, buf)) | |
1293 | return (speeds[i].speed); | |
1294 | return (-1); | |
1295 | } | |
1296 | ||
1297 | char * | |
1298 | mapped(type, speed) | |
1299 | char *type; | |
1300 | short speed; | |
1301 | { | |
1302 | int match; | |
1303 | ||
1304 | # ifdef DEB | |
1305 | printf ("spd:%d\n", speed); | |
1306 | prmap(); | |
1307 | # endif | |
1308 | Map = map; | |
1309 | while (Map->Ident) | |
1310 | { | |
1311 | if (*(Map->Ident) == NULL || bequal(Map->Ident, type, 4)) | |
1312 | { | |
1313 | match = NO; | |
1314 | switch (Map->Test) | |
1315 | { | |
1316 | case ANY: /* no test specified */ | |
1317 | case ALL: | |
1318 | match = YES; | |
1319 | break; | |
1320 | ||
1321 | case GT: | |
1322 | match = (speed > Map->Speed); | |
1323 | break; | |
1324 | ||
1325 | case GE: | |
1326 | match = (speed >= Map->Speed); | |
1327 | break; | |
1328 | ||
1329 | case EQ: | |
1330 | match = (speed == Map->Speed); | |
1331 | break; | |
1332 | ||
1333 | case LE: | |
1334 | match = (speed <= Map->Speed); | |
1335 | break; | |
1336 | ||
1337 | case LT: | |
1338 | match = (speed < Map->Speed); | |
1339 | break; | |
1340 | ||
1341 | case NE: | |
1342 | match = (speed != Map->Speed); | |
1343 | break; | |
1344 | } | |
1345 | if (match) | |
1346 | return (Map->Type); | |
1347 | } | |
1348 | Map++; | |
1349 | } | |
1350 | /* no match found; return given type */ | |
1351 | return (type); | |
1352 | } | |
1353 | ||
1354 | # ifdef DEB | |
1355 | prmap() | |
1356 | { | |
1357 | Map = map; | |
1358 | while (Map->Ident) | |
1359 | { | |
1360 | printf ("%s t:%d s:%d %s\n", | |
1361 | Map->Ident, Map->Test, Map->Speed, Map->Type); | |
1362 | Map++; | |
1363 | } | |
1364 | } | |
1365 | # endif | |
1366 | ||
1367 | char * | |
1368 | nextarg(argc, argv) | |
1369 | int argc; | |
1370 | char *argv[]; | |
1371 | { | |
1372 | if (argc <= 0) | |
1373 | fatal ("Too few args: ", *argv); | |
1374 | if (*(*++argv) == '-') | |
1375 | fatal ("Unexpected arg: ", *argv); | |
1376 | return (*argv); | |
1377 | } | |
1378 | ||
1379 | fatal (mesg, obj) | |
1380 | char *mesg; | |
1381 | char *obj; | |
1382 | { | |
1383 | prs (mesg); | |
1384 | prs (obj); | |
1385 | prc ('\n'); | |
1386 | prs (USAGE); | |
1387 | flush(); | |
1388 | exit(1); | |
1389 | } |