Commit | Line | Data |
---|---|---|
544cd46c MH |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
2 | #include "ex.h" | |
3 | #include "ex_argv.h" | |
4 | #include "ex_temp.h" | |
5 | #include "ex_tty.h" | |
6 | #include "ex_vis.h" | |
7 | ||
8 | /* | |
d266c416 | 9 | * File input/output, source, preserve and recover |
544cd46c MH |
10 | */ |
11 | ||
12 | /* | |
13 | * Following remember where . was in the previous file for return | |
14 | * on file switching. | |
15 | */ | |
44232d5b MH |
16 | int altdot; |
17 | int oldadot; | |
544cd46c | 18 | bool wasalt; |
d266c416 | 19 | short isalt; |
544cd46c MH |
20 | |
21 | long cntch; /* Count of characters on unit io */ | |
44232d5b | 22 | #ifndef VMUNIX |
544cd46c | 23 | short cntln; /* Count of lines " */ |
44232d5b MH |
24 | #else |
25 | int cntln; | |
26 | #endif | |
544cd46c MH |
27 | long cntnull; /* Count of nulls " */ |
28 | long cntodd; /* Count of non-ascii characters " */ | |
29 | ||
30 | /* | |
31 | * Parse file name for command encoded by comm. | |
32 | * If comm is E then command is doomed and we are | |
33 | * parsing just so user won't have to retype the name. | |
34 | */ | |
35 | filename(comm) | |
36 | int comm; | |
37 | { | |
38 | register int c = comm, d; | |
39 | register int i; | |
40 | ||
41 | d = getchar(); | |
42 | if (endcmd(d)) { | |
43 | if (savedfile[0] == 0 && comm != 'f') | |
44 | error("No file|No current filename"); | |
45 | CP(file, savedfile); | |
d266c416 MH |
46 | wasalt = (isalt > 0) ? isalt-1 : 0; |
47 | isalt = 0; | |
544cd46c | 48 | oldadot = altdot; |
d266c416 MH |
49 | if (c == 'e' || c == 'E') |
50 | altdot = lineDOT(); | |
544cd46c MH |
51 | if (d == EOF) |
52 | ungetchar(d); | |
53 | } else { | |
54 | ungetchar(d); | |
55 | getone(); | |
56 | eol(); | |
57 | if (savedfile[0] == 0 && c != 'E' && c != 'e') { | |
58 | c = 'e'; | |
59 | edited = 0; | |
60 | } | |
61 | wasalt = strcmp(file, altfile) == 0; | |
62 | oldadot = altdot; | |
63 | switch (c) { | |
64 | ||
65 | case 'f': | |
66 | edited = 0; | |
67 | /* fall into ... */ | |
68 | ||
69 | case 'e': | |
70 | if (savedfile[0]) { | |
71 | altdot = lineDOT(); | |
72 | CP(altfile, savedfile); | |
73 | } | |
74 | CP(savedfile, file); | |
75 | break; | |
76 | ||
77 | default: | |
78 | if (file[0]) { | |
79 | if (c != 'E') | |
80 | altdot = lineDOT(); | |
81 | CP(altfile, file); | |
82 | } | |
83 | break; | |
84 | } | |
85 | } | |
86 | if (hush && comm != 'f' || comm == 'E') | |
87 | return; | |
88 | if (file[0] != 0) { | |
89 | lprintf("\"%s\"", file); | |
90 | if (comm == 'f') { | |
d266c416 MH |
91 | if (value(READONLY)) |
92 | printf(" [Read only]"); | |
544cd46c MH |
93 | if (!edited) |
94 | printf(" [Not edited]"); | |
95 | if (tchng) | |
96 | printf(" [Modified]"); | |
97 | } | |
98 | flush(); | |
99 | } else | |
100 | printf("No file "); | |
101 | if (comm == 'f') { | |
102 | if (!(i = lineDOL())) | |
103 | i++; | |
104 | printf(" line %d of %d --%ld%%--", lineDOT(), lineDOL(), | |
105 | (long) 100 * lineDOT() / i); | |
106 | } | |
107 | } | |
108 | ||
109 | /* | |
110 | * Get the argument words for a command into genbuf | |
111 | * expanding # and %. | |
112 | */ | |
113 | getargs() | |
114 | { | |
115 | register int c; | |
116 | register char *cp, *fp; | |
117 | static char fpatbuf[32]; /* hence limit on :next +/pat */ | |
118 | ||
119 | pastwh(); | |
120 | if (peekchar() == '+') { | |
121 | for (cp = fpatbuf;;) { | |
122 | c = *cp++ = getchar(); | |
123 | if (cp >= &fpatbuf[sizeof(fpatbuf)]) | |
124 | error("Pattern too long"); | |
125 | if (c == '\\' && isspace(peekchar())) | |
126 | c = getchar(); | |
127 | if (c == EOF || isspace(c)) { | |
128 | ungetchar(c); | |
129 | *--cp = 0; | |
130 | firstpat = &fpatbuf[1]; | |
131 | break; | |
132 | } | |
133 | } | |
134 | } | |
135 | if (skipend()) | |
136 | return (0); | |
137 | CP(genbuf, "echo "); cp = &genbuf[5]; | |
138 | for (;;) { | |
139 | c = getchar(); | |
140 | if (endcmd(c)) { | |
141 | ungetchar(c); | |
142 | break; | |
143 | } | |
144 | switch (c) { | |
145 | ||
146 | case '\\': | |
d266c416 | 147 | if (any(peekchar(), "#%|")) |
544cd46c MH |
148 | c = getchar(); |
149 | /* fall into... */ | |
150 | ||
151 | default: | |
152 | if (cp > &genbuf[LBSIZE - 2]) | |
153 | flong: | |
154 | error("Argument buffer overflow"); | |
155 | *cp++ = c; | |
156 | break; | |
157 | ||
158 | case '#': | |
159 | fp = altfile; | |
160 | if (*fp == 0) | |
161 | error("No alternate filename@to substitute for #"); | |
162 | goto filexp; | |
163 | ||
164 | case '%': | |
165 | fp = savedfile; | |
166 | if (*fp == 0) | |
167 | error("No current filename@to substitute for %%"); | |
168 | filexp: | |
169 | while (*fp) { | |
170 | if (cp > &genbuf[LBSIZE - 2]) | |
171 | goto flong; | |
172 | *cp++ = *fp++; | |
173 | } | |
174 | break; | |
175 | } | |
176 | } | |
177 | *cp = 0; | |
178 | return (1); | |
179 | } | |
180 | ||
181 | /* | |
182 | * Glob the argument words in genbuf, or if no globbing | |
183 | * is implied, just split them up directly. | |
184 | */ | |
185 | glob(gp) | |
186 | struct glob *gp; | |
187 | { | |
188 | int pvec[2]; | |
189 | register char **argv = gp->argv; | |
190 | register char *cp = gp->argspac; | |
191 | register int c; | |
192 | char ch; | |
193 | int nleft = NCARGS; | |
194 | ||
195 | gp->argc0 = 0; | |
196 | if (gscan() == 0) { | |
197 | register char *v = genbuf + 5; /* strlen("echo ") */ | |
198 | ||
199 | for (;;) { | |
200 | while (isspace(*v)) | |
201 | v++; | |
202 | if (!*v) | |
203 | break; | |
204 | *argv++ = cp; | |
205 | while (*v && !isspace(*v)) | |
206 | *cp++ = *v++; | |
207 | *cp++ = 0; | |
208 | gp->argc0++; | |
209 | } | |
210 | *argv = 0; | |
211 | return; | |
212 | } | |
213 | if (pipe(pvec) < 0) | |
214 | error("Can't make pipe to glob"); | |
215 | pid = fork(); | |
216 | io = pvec[0]; | |
217 | if (pid < 0) { | |
218 | close(pvec[1]); | |
219 | error("Can't fork to do glob"); | |
220 | } | |
221 | if (pid == 0) { | |
222 | int oerrno; | |
223 | ||
224 | close(1); | |
225 | dup(pvec[1]); | |
226 | close(pvec[0]); | |
887e3e0d MH |
227 | close(2); /* so errors don't mess up the screen */ |
228 | open("/dev/null", 1); | |
544cd46c MH |
229 | execl(svalue(SHELL), "sh", "-c", genbuf, 0); |
230 | oerrno = errno; close(1); dup(2); errno = oerrno; | |
231 | filioerr(svalue(SHELL)); | |
232 | } | |
233 | close(pvec[1]); | |
234 | do { | |
235 | *argv = cp; | |
236 | for (;;) { | |
237 | if (read(io, &ch, 1) != 1) { | |
238 | close(io); | |
239 | c = -1; | |
240 | } else | |
241 | c = ch & TRIM; | |
242 | if (c <= 0 || isspace(c)) | |
243 | break; | |
244 | *cp++ = c; | |
245 | if (--nleft <= 0) | |
246 | error("Arg list too long"); | |
247 | } | |
248 | if (cp != *argv) { | |
249 | --nleft; | |
250 | *cp++ = 0; | |
251 | gp->argc0++; | |
252 | if (gp->argc0 >= NARGS) | |
253 | error("Arg list too long"); | |
254 | argv++; | |
255 | } | |
256 | } while (c >= 0); | |
257 | waitfor(); | |
258 | if (gp->argc0 == 0) | |
887e3e0d | 259 | error("No match"); |
544cd46c MH |
260 | } |
261 | ||
262 | /* | |
263 | * Scan genbuf for shell metacharacters. | |
264 | * Set is union of v7 shell and csh metas. | |
265 | */ | |
266 | gscan() | |
267 | { | |
268 | register char *cp; | |
269 | ||
270 | for (cp = genbuf; *cp; cp++) | |
271 | if (any(*cp, "~{[*?$`'\"\\")) | |
272 | return (1); | |
273 | return (0); | |
274 | } | |
275 | ||
276 | /* | |
277 | * Parse one filename into file. | |
278 | */ | |
279 | getone() | |
280 | { | |
281 | register char *str; | |
282 | struct glob G; | |
283 | ||
284 | if (getargs() == 0) | |
285 | error("Missing filename"); | |
286 | glob(&G); | |
287 | if (G.argc0 > 1) | |
288 | error("Ambiguous|Too many file names"); | |
289 | str = G.argv[G.argc0 - 1]; | |
290 | if (strlen(str) > FNSIZE - 4) | |
291 | error("Filename too long"); | |
292 | samef: | |
293 | CP(file, str); | |
294 | } | |
295 | ||
296 | /* | |
297 | * Read a file from the world. | |
298 | * C is command, 'e' if this really an edit (or a recover). | |
299 | */ | |
300 | rop(c) | |
301 | int c; | |
302 | { | |
303 | register int i; | |
304 | struct stat stbuf; | |
305 | short magic; | |
306 | ||
307 | io = open(file, 0); | |
308 | if (io < 0) { | |
309 | if (c == 'e' && errno == ENOENT) | |
310 | edited++; | |
311 | syserror(); | |
312 | } | |
313 | if (fstat(io, &stbuf)) | |
314 | syserror(); | |
315 | switch (stbuf.st_mode & S_IFMT) { | |
316 | ||
317 | case S_IFBLK: | |
318 | error(" Block special file"); | |
319 | ||
320 | case S_IFCHR: | |
321 | if (isatty(io)) | |
322 | error(" Teletype"); | |
323 | if (samei(&stbuf, "/dev/null")) | |
324 | break; | |
325 | error(" Character special file"); | |
326 | ||
327 | case S_IFDIR: | |
328 | error(" Directory"); | |
329 | ||
330 | case S_IFREG: | |
d266c416 MH |
331 | if (xflag) |
332 | break; | |
544cd46c MH |
333 | i = read(io, (char *) &magic, sizeof(magic)); |
334 | lseek(io, 0l, 0); | |
335 | if (i != sizeof(magic)) | |
336 | break; | |
337 | switch (magic) { | |
338 | ||
339 | case 0405: | |
340 | case 0407: | |
341 | case 0410: | |
342 | case 0411: | |
343 | error(" Executable"); | |
344 | ||
345 | case 0177545: | |
346 | case 0177555: | |
347 | error(" Archive"); | |
348 | ||
349 | default: | |
350 | if (magic & 0100200) | |
351 | error(" Non-ascii file"); | |
352 | break; | |
353 | } | |
354 | } | |
355 | if (c == 'r') | |
356 | setdot(); | |
357 | else | |
358 | setall(); | |
887e3e0d | 359 | if (FIXUNDO && inopen && c == 'r') |
544cd46c MH |
360 | undap1 = undap2 = dot + 1; |
361 | rop2(); | |
362 | rop3(c); | |
363 | } | |
364 | ||
365 | rop2() | |
366 | { | |
367 | ||
368 | deletenone(); | |
369 | clrstats(); | |
370 | ignore(append(getfile, addr2)); | |
371 | } | |
372 | ||
373 | rop3(c) | |
374 | int c; | |
375 | { | |
376 | ||
377 | if (iostats() == 0 && c == 'e') | |
378 | edited++; | |
379 | if (c == 'e') { | |
380 | if (wasalt || firstpat) { | |
381 | register line *addr = zero + oldadot; | |
382 | ||
383 | if (addr > dol) | |
384 | addr = dol; | |
385 | if (firstpat) { | |
386 | globp = (*firstpat) ? firstpat : "$"; | |
387 | commands(1,1); | |
388 | firstpat = 0; | |
389 | } else if (addr >= one) { | |
390 | if (inopen) | |
391 | dot = addr; | |
392 | markpr(addr); | |
393 | } else | |
394 | goto other; | |
395 | } else | |
396 | other: | |
397 | if (dol > zero) { | |
398 | if (inopen) | |
399 | dot = one; | |
400 | markpr(one); | |
401 | } | |
887e3e0d MH |
402 | if(FIXUNDO) |
403 | undkind = UNDNONE; | |
544cd46c MH |
404 | if (inopen) { |
405 | vcline = 0; | |
406 | vreplace(0, LINES, lineDOL()); | |
407 | } | |
408 | } | |
409 | if (laste) { | |
410 | laste = 0; | |
411 | sync(); | |
412 | } | |
413 | } | |
414 | ||
415 | /* | |
416 | * Are these two really the same inode? | |
417 | */ | |
418 | samei(sp, cp) | |
419 | struct stat *sp; | |
420 | char *cp; | |
421 | { | |
422 | struct stat stb; | |
423 | ||
424 | if (stat(cp, &stb) < 0 || sp->st_dev != stb.st_dev) | |
425 | return (0); | |
426 | return (sp->st_ino == stb.st_ino); | |
427 | } | |
428 | ||
429 | /* Returns from edited() */ | |
430 | #define EDF 0 /* Edited file */ | |
431 | #define NOTEDF -1 /* Not edited file */ | |
432 | #define PARTBUF 1 /* Write of partial buffer to Edited file */ | |
433 | ||
434 | /* | |
435 | * Write a file. | |
436 | */ | |
437 | wop(dofname) | |
438 | bool dofname; /* if 1 call filename, else use savedfile */ | |
439 | { | |
440 | register int c, exclam, nonexist; | |
441 | line *saddr1, *saddr2; | |
442 | struct stat stbuf; | |
443 | ||
444 | c = 0; | |
445 | exclam = 0; | |
446 | if (dofname) { | |
447 | if (peekchar() == '!') | |
448 | exclam++, ignchar(); | |
449 | ignore(skipwh()); | |
450 | while (peekchar() == '>') | |
451 | ignchar(), c++, ignore(skipwh()); | |
452 | if (c != 0 && c != 2) | |
453 | error("Write forms are 'w' and 'w>>'"); | |
454 | filename('w'); | |
455 | } else { | |
887e3e0d MH |
456 | if (savedfile[0] == 0) |
457 | error("No file|No current filename"); | |
544cd46c MH |
458 | saddr1=addr1; |
459 | saddr2=addr2; | |
460 | addr1=one; | |
461 | addr2=dol; | |
462 | CP(file, savedfile); | |
463 | if (inopen) { | |
464 | vclrech(0); | |
465 | splitw++; | |
466 | } | |
467 | lprintf("\"%s\"", file); | |
468 | } | |
469 | nonexist = stat(file, &stbuf); | |
470 | switch (c) { | |
471 | ||
472 | case 0: | |
d266c416 MH |
473 | if (!exclam && (!value(WRITEANY) || value(READONLY))) |
474 | switch (edfile()) { | |
544cd46c MH |
475 | |
476 | case NOTEDF: | |
477 | if (nonexist) | |
478 | break; | |
479 | if ((stbuf.st_mode & S_IFMT) == S_IFCHR) { | |
480 | if (samei(&stbuf, "/dev/null")) | |
481 | break; | |
482 | if (samei(&stbuf, "/dev/tty")) | |
483 | break; | |
484 | } | |
485 | io = open(file, 1); | |
486 | if (io < 0) | |
487 | syserror(); | |
488 | if (!isatty(io)) | |
489 | serror(" File exists| File exists - use \"w! %s\" to overwrite", file); | |
490 | close(io); | |
491 | break; | |
492 | ||
d266c416 MH |
493 | case EDF: |
494 | if (value(READONLY)) | |
495 | error(" File is read only"); | |
496 | break; | |
497 | ||
544cd46c | 498 | case PARTBUF: |
d266c416 MH |
499 | if (value(READONLY)) |
500 | error(" File is read only"); | |
544cd46c MH |
501 | error(" Use \"w!\" to write partial buffer"); |
502 | } | |
503 | cre: | |
44232d5b | 504 | /* |
544cd46c | 505 | synctmp(); |
44232d5b | 506 | */ |
544cd46c MH |
507 | #ifdef V6 |
508 | io = creat(file, 0644); | |
509 | #else | |
510 | io = creat(file, 0666); | |
511 | #endif | |
512 | if (io < 0) | |
513 | syserror(); | |
514 | if (hush == 0) | |
515 | if (nonexist) | |
516 | printf(" [New file]"); | |
517 | else if (value(WRITEANY) && edfile() != EDF) | |
518 | printf(" [Existing file]"); | |
519 | break; | |
520 | ||
521 | case 2: | |
522 | io = open(file, 1); | |
523 | if (io < 0) { | |
524 | if (exclam || value(WRITEANY)) | |
525 | goto cre; | |
526 | syserror(); | |
527 | } | |
528 | lseek(io, 0l, 2); | |
529 | break; | |
530 | } | |
531 | putfile(); | |
532 | ignore(iostats()); | |
533 | if (c != 2 && addr1 == one && addr2 == dol) { | |
534 | if (eq(file, savedfile)) | |
535 | edited = 1; | |
536 | sync(); | |
537 | } | |
538 | if (!dofname) { | |
539 | addr1 = saddr1; | |
540 | addr2 = saddr2; | |
541 | } | |
542 | } | |
543 | ||
544 | /* | |
545 | * Is file the edited file? | |
546 | * Work here is that it is not considered edited | |
547 | * if this is a partial buffer, and distinguish | |
548 | * all cases. | |
549 | */ | |
550 | edfile() | |
551 | { | |
552 | ||
553 | if (!edited || !eq(file, savedfile)) | |
554 | return (NOTEDF); | |
555 | return (addr1 == one && addr2 == dol ? EDF : PARTBUF); | |
556 | } | |
557 | ||
544cd46c MH |
558 | /* |
559 | * Extract the next line from the io stream. | |
560 | */ | |
561 | static char *nextip; | |
562 | ||
563 | getfile() | |
564 | { | |
565 | register short c; | |
566 | register char *lp, *fp; | |
567 | ||
568 | lp = linebuf; | |
569 | fp = nextip; | |
570 | do { | |
571 | if (--ninbuf < 0) { | |
572 | ninbuf = read(io, genbuf, LBSIZE) - 1; | |
573 | if (ninbuf < 0) { | |
574 | if (lp != linebuf) { | |
d266c416 | 575 | lp++; |
544cd46c MH |
576 | printf(" [Incomplete last line]"); |
577 | break; | |
578 | } | |
579 | return (EOF); | |
580 | } | |
581 | fp = genbuf; | |
d266c416 MH |
582 | while(fp < &genbuf[ninbuf]) { |
583 | if (*fp++ & 0200) { | |
584 | if (kflag) | |
585 | crblock(perm, genbuf, ninbuf+1, | |
586 | cntch); | |
587 | break; | |
588 | } | |
589 | } | |
590 | fp = genbuf; | |
591 | cntch += ninbuf+1; | |
544cd46c MH |
592 | } |
593 | if (lp >= &linebuf[LBSIZE]) { | |
594 | error(" Line too long"); | |
595 | } | |
596 | c = *fp++; | |
597 | if (c == 0) { | |
598 | cntnull++; | |
599 | continue; | |
600 | } | |
601 | if (c & QUOTE) { | |
602 | cntodd++; | |
603 | c &= TRIM; | |
604 | if (c == 0) | |
605 | continue; | |
606 | } | |
607 | *lp++ = c; | |
608 | } while (c != '\n'); | |
544cd46c MH |
609 | *--lp = 0; |
610 | nextip = fp; | |
611 | cntln++; | |
612 | return (0); | |
613 | } | |
614 | ||
615 | /* | |
616 | * Write a range onto the io stream. | |
617 | */ | |
618 | putfile() | |
619 | { | |
620 | line *a1; | |
621 | register char *fp, *lp; | |
622 | register int nib; | |
623 | ||
624 | a1 = addr1; | |
625 | clrstats(); | |
626 | cntln = addr2 - a1 + 1; | |
627 | if (cntln == 0) | |
628 | return; | |
629 | nib = BUFSIZ; | |
630 | fp = genbuf; | |
631 | do { | |
632 | getline(*a1++); | |
633 | lp = linebuf; | |
634 | for (;;) { | |
635 | if (--nib < 0) { | |
636 | nib = fp - genbuf; | |
d266c416 MH |
637 | if(kflag) |
638 | crblock(perm, genbuf, nib, cntch); | |
544cd46c MH |
639 | if (write(io, genbuf, nib) != nib) { |
640 | wrerror(); | |
641 | } | |
642 | cntch += nib; | |
643 | nib = BUFSIZ - 1; | |
644 | fp = genbuf; | |
645 | } | |
646 | if ((*fp++ = *lp++) == 0) { | |
647 | fp[-1] = '\n'; | |
648 | break; | |
649 | } | |
650 | } | |
651 | } while (a1 <= addr2); | |
652 | nib = fp - genbuf; | |
d266c416 MH |
653 | if(kflag) |
654 | crblock(perm, genbuf, nib, cntch); | |
544cd46c MH |
655 | if (write(io, genbuf, nib) != nib) { |
656 | wrerror(); | |
657 | } | |
658 | cntch += nib; | |
659 | } | |
660 | ||
661 | /* | |
662 | * A write error has occurred; if the file being written was | |
663 | * the edited file then we consider it to have changed since it is | |
664 | * now likely scrambled. | |
665 | */ | |
666 | wrerror() | |
667 | { | |
668 | ||
669 | if (eq(file, savedfile) && edited) | |
670 | change(); | |
671 | syserror(); | |
672 | } | |
673 | ||
674 | /* | |
675 | * Source command, handles nested sources. | |
676 | * Traps errors since it mungs unit 0 during the source. | |
677 | */ | |
d266c416 MH |
678 | short slevel; |
679 | short ttyindes; | |
544cd46c MH |
680 | |
681 | source(fil, okfail) | |
682 | char *fil; | |
683 | bool okfail; | |
684 | { | |
685 | jmp_buf osetexit; | |
686 | register int saveinp, ointty, oerrno; | |
544cd46c MH |
687 | |
688 | signal(SIGINT, SIG_IGN); | |
689 | saveinp = dup(0); | |
690 | if (saveinp < 0) | |
691 | error("Too many nested sources"); | |
d266c416 MH |
692 | if (slevel <= 0) |
693 | ttyindes = saveinp; | |
544cd46c MH |
694 | close(0); |
695 | if (open(fil, 0) < 0) { | |
696 | oerrno = errno; | |
697 | setrupt(); | |
698 | dup(saveinp); | |
699 | close(saveinp); | |
700 | errno = oerrno; | |
701 | if (!okfail) | |
702 | filioerr(fil); | |
703 | return; | |
704 | } | |
705 | slevel++; | |
706 | ointty = intty; | |
707 | intty = isatty(0); | |
708 | oprompt = value(PROMPT); | |
709 | value(PROMPT) &= intty; | |
710 | getexit(osetexit); | |
711 | setrupt(); | |
712 | if (setexit() == 0) | |
713 | commands(1, 1); | |
714 | else if (slevel > 1) { | |
715 | close(0); | |
716 | dup(saveinp); | |
717 | close(saveinp); | |
718 | slevel--; | |
719 | resexit(osetexit); | |
720 | reset(); | |
721 | } | |
722 | intty = ointty; | |
723 | value(PROMPT) = oprompt; | |
724 | close(0); | |
725 | dup(saveinp); | |
726 | close(saveinp); | |
727 | slevel--; | |
728 | resexit(osetexit); | |
729 | } | |
730 | ||
731 | /* | |
732 | * Clear io statistics before a read or write. | |
733 | */ | |
734 | clrstats() | |
735 | { | |
736 | ||
737 | ninbuf = 0; | |
738 | cntch = 0; | |
739 | cntln = 0; | |
740 | cntnull = 0; | |
741 | cntodd = 0; | |
742 | } | |
743 | ||
744 | /* | |
745 | * Io is finished, close the unit and print statistics. | |
746 | */ | |
747 | iostats() | |
748 | { | |
749 | ||
750 | close(io); | |
751 | io = -1; | |
752 | if (hush == 0) { | |
753 | if (value(TERSE)) | |
754 | printf(" %d/%D", cntln, cntch); | |
755 | else | |
756 | printf(" %d line%s, %D character%s", cntln, plural((long) cntln), | |
757 | cntch, plural(cntch)); | |
758 | if (cntnull || cntodd) { | |
759 | printf(" ("); | |
760 | if (cntnull) { | |
761 | printf("%D null", cntnull); | |
762 | if (cntodd) | |
763 | printf(", "); | |
764 | } | |
765 | if (cntodd) | |
766 | printf("%D non-ASCII", cntodd); | |
767 | putchar(')'); | |
768 | } | |
769 | noonl(); | |
770 | flush(); | |
771 | } | |
772 | return (cntnull != 0 || cntodd != 0); | |
773 | } |