Commit | Line | Data |
a0d0e21e |
1 | /* util.c |
a687059c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
a687059c |
4 | * |
d48672a2 |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
8d063cd8 |
7 | * |
8d063cd8 |
8 | */ |
a0d0e21e |
9 | |
10 | /* |
11 | * "Very useful, no doubt, that was to Saruman; yet it seems that he was |
12 | * not content." --Gandalf |
13 | */ |
8d063cd8 |
14 | |
8d063cd8 |
15 | #include "EXTERN.h" |
8d063cd8 |
16 | #include "perl.h" |
62b28dd9 |
17 | |
6eb13c3b |
18 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
a687059c |
19 | #include <signal.h> |
62b28dd9 |
20 | #endif |
a687059c |
21 | |
36477c24 |
22 | #ifndef SIG_ERR |
23 | # define SIG_ERR ((Sighandler_t) -1) |
24 | #endif |
25 | |
bd4080b3 |
26 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
85e6fe83 |
27 | #ifdef I_UNISTD |
8990e307 |
28 | # include <unistd.h> |
29 | #endif |
30 | |
a687059c |
31 | #ifdef I_VFORK |
32 | # include <vfork.h> |
33 | #endif |
34 | |
94b6baf5 |
35 | /* Put this after #includes because fork and vfork prototypes may |
36 | conflict. |
37 | */ |
38 | #ifndef HAS_VFORK |
39 | # define vfork fork |
40 | #endif |
41 | |
fe14fcc3 |
42 | #ifdef I_FCNTL |
43 | # include <fcntl.h> |
44 | #endif |
45 | #ifdef I_SYS_FILE |
46 | # include <sys/file.h> |
47 | #endif |
48 | |
ff68c719 |
49 | #ifdef I_SYS_WAIT |
50 | # include <sys/wait.h> |
51 | #endif |
52 | |
8d063cd8 |
53 | #define FLUSH |
8d063cd8 |
54 | |
a0d0e21e |
55 | #ifdef LEAKTEST |
56 | static void xstat _((void)); |
57 | #endif |
58 | |
a863c7d1 |
59 | #ifdef USE_THREADS |
60 | static U32 threadnum = 0; |
61 | #endif /* USE_THREADS */ |
62 | |
55497cff |
63 | #ifndef MYMALLOC |
de3bb511 |
64 | |
8d063cd8 |
65 | /* paranoid version of malloc */ |
66 | |
a687059c |
67 | /* NOTE: Do not call the next three routines directly. Use the macros |
68 | * in handy.h, so that we can easily redefine everything to do tracking of |
69 | * allocated hunks back to the original New to track down any memory leaks. |
20cec16a |
70 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c |
71 | */ |
72 | |
bd4080b3 |
73 | Malloc_t |
8d063cd8 |
74 | safemalloc(size) |
75 | MEM_SIZE size; |
76 | { |
bd4080b3 |
77 | Malloc_t ptr; |
55497cff |
78 | #ifdef HAS_64K_LIMIT |
62b28dd9 |
79 | if (size > 0xffff) { |
760ac839 |
80 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
79072805 |
81 | my_exit(1); |
62b28dd9 |
82 | } |
55497cff |
83 | #endif /* HAS_64K_LIMIT */ |
34de22dd |
84 | #ifdef DEBUGGING |
85 | if ((long)size < 0) |
463ee0b2 |
86 | croak("panic: malloc"); |
34de22dd |
87 | #endif |
8d063cd8 |
88 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 |
89 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
90 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
79072805 |
91 | #else |
760ac839 |
92 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
8d063cd8 |
93 | #endif |
94 | if (ptr != Nullch) |
95 | return ptr; |
7c0587c8 |
96 | else if (nomemok) |
97 | return Nullch; |
8d063cd8 |
98 | else { |
760ac839 |
99 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 |
100 | my_exit(1); |
8d063cd8 |
101 | } |
102 | /*NOTREACHED*/ |
103 | } |
104 | |
105 | /* paranoid version of realloc */ |
106 | |
bd4080b3 |
107 | Malloc_t |
8d063cd8 |
108 | saferealloc(where,size) |
bd4080b3 |
109 | Malloc_t where; |
8d063cd8 |
110 | MEM_SIZE size; |
111 | { |
bd4080b3 |
112 | Malloc_t ptr; |
ecfc5424 |
113 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
bd4080b3 |
114 | Malloc_t realloc(); |
ecfc5424 |
115 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 |
116 | |
55497cff |
117 | #ifdef HAS_64K_LIMIT |
5f05dabc |
118 | if (size > 0xffff) { |
119 | PerlIO_printf(PerlIO_stderr(), |
120 | "Reallocation too large: %lx\n", size) FLUSH; |
121 | my_exit(1); |
122 | } |
55497cff |
123 | #endif /* HAS_64K_LIMIT */ |
378cc40b |
124 | if (!where) |
463ee0b2 |
125 | croak("Null realloc"); |
34de22dd |
126 | #ifdef DEBUGGING |
127 | if ((long)size < 0) |
463ee0b2 |
128 | croak("panic: realloc"); |
34de22dd |
129 | #endif |
8d063cd8 |
130 | ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ |
79072805 |
131 | |
132 | #if !(defined(I286) || defined(atarist)) |
133 | DEBUG_m( { |
760ac839 |
134 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++); |
135 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
136 | } ) |
137 | #else |
138 | DEBUG_m( { |
760ac839 |
139 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++); |
140 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
141 | } ) |
8d063cd8 |
142 | #endif |
79072805 |
143 | |
8d063cd8 |
144 | if (ptr != Nullch) |
145 | return ptr; |
7c0587c8 |
146 | else if (nomemok) |
147 | return Nullch; |
8d063cd8 |
148 | else { |
760ac839 |
149 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 |
150 | my_exit(1); |
8d063cd8 |
151 | } |
152 | /*NOTREACHED*/ |
153 | } |
154 | |
155 | /* safe version of free */ |
156 | |
54310121 |
157 | Free_t |
8d063cd8 |
158 | safefree(where) |
bd4080b3 |
159 | Malloc_t where; |
8d063cd8 |
160 | { |
79072805 |
161 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
162 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++)); |
79072805 |
163 | #else |
760ac839 |
164 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++)); |
8d063cd8 |
165 | #endif |
378cc40b |
166 | if (where) { |
de3bb511 |
167 | /*SUPPRESS 701*/ |
378cc40b |
168 | free(where); |
169 | } |
8d063cd8 |
170 | } |
171 | |
1050c9ca |
172 | /* safe version of calloc */ |
173 | |
bd4080b3 |
174 | Malloc_t |
1050c9ca |
175 | safecalloc(count, size) |
176 | MEM_SIZE count; |
177 | MEM_SIZE size; |
178 | { |
bd4080b3 |
179 | Malloc_t ptr; |
1050c9ca |
180 | |
55497cff |
181 | #ifdef HAS_64K_LIMIT |
5f05dabc |
182 | if (size * count > 0xffff) { |
183 | PerlIO_printf(PerlIO_stderr(), |
184 | "Allocation too large: %lx\n", size * count) FLUSH; |
185 | my_exit(1); |
186 | } |
55497cff |
187 | #endif /* HAS_64K_LIMIT */ |
1050c9ca |
188 | #ifdef DEBUGGING |
189 | if ((long)size < 0 || (long)count < 0) |
190 | croak("panic: calloc"); |
191 | #endif |
0b7c1c42 |
192 | size *= count; |
193 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
1050c9ca |
194 | #if !(defined(I286) || defined(atarist)) |
fb73857a |
195 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
196 | #else |
fb73857a |
197 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
198 | #endif |
1050c9ca |
199 | if (ptr != Nullch) { |
200 | memset((void*)ptr, 0, size); |
201 | return ptr; |
202 | } |
203 | else if (nomemok) |
204 | return Nullch; |
205 | else { |
760ac839 |
206 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
1050c9ca |
207 | my_exit(1); |
208 | } |
209 | /*NOTREACHED*/ |
210 | } |
211 | |
55497cff |
212 | #endif /* !MYMALLOC */ |
de3bb511 |
213 | |
a687059c |
214 | #ifdef LEAKTEST |
215 | |
216 | #define ALIGN sizeof(long) |
8d063cd8 |
217 | |
bd4080b3 |
218 | Malloc_t |
a687059c |
219 | safexmalloc(x,size) |
79072805 |
220 | I32 x; |
a687059c |
221 | MEM_SIZE size; |
8d063cd8 |
222 | { |
bd4080b3 |
223 | register Malloc_t where; |
8d063cd8 |
224 | |
a687059c |
225 | where = safemalloc(size + ALIGN); |
226 | xcount[x]++; |
227 | where[0] = x % 100; |
228 | where[1] = x / 100; |
229 | return where + ALIGN; |
8d063cd8 |
230 | } |
8d063cd8 |
231 | |
bd4080b3 |
232 | Malloc_t |
a687059c |
233 | safexrealloc(where,size) |
bd4080b3 |
234 | Malloc_t where; |
a687059c |
235 | MEM_SIZE size; |
236 | { |
bd4080b3 |
237 | register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN); |
a0d0e21e |
238 | return new + ALIGN; |
a687059c |
239 | } |
240 | |
241 | void |
242 | safexfree(where) |
bd4080b3 |
243 | Malloc_t where; |
a687059c |
244 | { |
79072805 |
245 | I32 x; |
a687059c |
246 | |
247 | if (!where) |
248 | return; |
249 | where -= ALIGN; |
250 | x = where[0] + 100 * where[1]; |
251 | xcount[x]--; |
252 | safefree(where); |
253 | } |
254 | |
bd4080b3 |
255 | Malloc_t |
1050c9ca |
256 | safexcalloc(x,count,size) |
257 | I32 x; |
258 | MEM_SIZE count; |
259 | MEM_SIZE size; |
260 | { |
bd4080b3 |
261 | register Malloc_t where; |
1050c9ca |
262 | |
263 | where = safexmalloc(x, size * count + ALIGN); |
264 | xcount[x]++; |
265 | memset((void*)where + ALIGN, 0, size * count); |
266 | where[0] = x % 100; |
267 | where[1] = x / 100; |
268 | return where + ALIGN; |
269 | } |
270 | |
7c0587c8 |
271 | static void |
a687059c |
272 | xstat() |
8d063cd8 |
273 | { |
79072805 |
274 | register I32 i; |
8d063cd8 |
275 | |
a687059c |
276 | for (i = 0; i < MAXXCOUNT; i++) { |
de3bb511 |
277 | if (xcount[i] > lastxcount[i]) { |
760ac839 |
278 | PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]); |
a687059c |
279 | lastxcount[i] = xcount[i]; |
8d063cd8 |
280 | } |
281 | } |
8d063cd8 |
282 | } |
a687059c |
283 | |
284 | #endif /* LEAKTEST */ |
8d063cd8 |
285 | |
286 | /* copy a string up to some (non-backslashed) delimiter, if any */ |
287 | |
288 | char * |
fc36a67e |
289 | delimcpy(to, toend, from, fromend, delim, retlen) |
62b28dd9 |
290 | register char *to; |
fc36a67e |
291 | register char *toend; |
62b28dd9 |
292 | register char *from; |
a687059c |
293 | register char *fromend; |
a0d0e21e |
294 | register int delim; |
79072805 |
295 | I32 *retlen; |
8d063cd8 |
296 | { |
fc36a67e |
297 | register I32 tolen; |
298 | for (tolen = 0; from < fromend; from++, tolen++) { |
378cc40b |
299 | if (*from == '\\') { |
300 | if (from[1] == delim) |
301 | from++; |
fc36a67e |
302 | else { |
303 | if (to < toend) |
304 | *to++ = *from; |
305 | tolen++; |
306 | from++; |
307 | } |
378cc40b |
308 | } |
bedebaa5 |
309 | else if (*from == delim) |
8d063cd8 |
310 | break; |
fc36a67e |
311 | if (to < toend) |
312 | *to++ = *from; |
8d063cd8 |
313 | } |
bedebaa5 |
314 | if (to < toend) |
315 | *to = '\0'; |
fc36a67e |
316 | *retlen = tolen; |
8d063cd8 |
317 | return from; |
318 | } |
319 | |
320 | /* return ptr to little string in big string, NULL if not found */ |
378cc40b |
321 | /* This routine was donated by Corey Satten. */ |
8d063cd8 |
322 | |
323 | char * |
324 | instr(big, little) |
378cc40b |
325 | register char *big; |
326 | register char *little; |
327 | { |
328 | register char *s, *x; |
79072805 |
329 | register I32 first; |
378cc40b |
330 | |
a687059c |
331 | if (!little) |
332 | return big; |
333 | first = *little++; |
378cc40b |
334 | if (!first) |
335 | return big; |
336 | while (*big) { |
337 | if (*big++ != first) |
338 | continue; |
339 | for (x=big,s=little; *s; /**/ ) { |
340 | if (!*x) |
341 | return Nullch; |
342 | if (*s++ != *x++) { |
343 | s--; |
344 | break; |
345 | } |
346 | } |
347 | if (!*s) |
348 | return big-1; |
349 | } |
350 | return Nullch; |
351 | } |
8d063cd8 |
352 | |
a687059c |
353 | /* same as instr but allow embedded nulls */ |
354 | |
355 | char * |
356 | ninstr(big, bigend, little, lend) |
357 | register char *big; |
358 | register char *bigend; |
359 | char *little; |
360 | char *lend; |
8d063cd8 |
361 | { |
a687059c |
362 | register char *s, *x; |
79072805 |
363 | register I32 first = *little; |
a687059c |
364 | register char *littleend = lend; |
378cc40b |
365 | |
a0d0e21e |
366 | if (!first && little >= littleend) |
a687059c |
367 | return big; |
de3bb511 |
368 | if (bigend - big < littleend - little) |
369 | return Nullch; |
a687059c |
370 | bigend -= littleend - little++; |
371 | while (big <= bigend) { |
372 | if (*big++ != first) |
373 | continue; |
374 | for (x=big,s=little; s < littleend; /**/ ) { |
375 | if (*s++ != *x++) { |
376 | s--; |
377 | break; |
378 | } |
379 | } |
380 | if (s >= littleend) |
381 | return big-1; |
378cc40b |
382 | } |
a687059c |
383 | return Nullch; |
384 | } |
385 | |
386 | /* reverse of the above--find last substring */ |
387 | |
388 | char * |
389 | rninstr(big, bigend, little, lend) |
390 | register char *big; |
391 | char *bigend; |
392 | char *little; |
393 | char *lend; |
394 | { |
395 | register char *bigbeg; |
396 | register char *s, *x; |
79072805 |
397 | register I32 first = *little; |
a687059c |
398 | register char *littleend = lend; |
399 | |
a0d0e21e |
400 | if (!first && little >= littleend) |
a687059c |
401 | return bigend; |
402 | bigbeg = big; |
403 | big = bigend - (littleend - little++); |
404 | while (big >= bigbeg) { |
405 | if (*big-- != first) |
406 | continue; |
407 | for (x=big+2,s=little; s < littleend; /**/ ) { |
408 | if (*s++ != *x++) { |
409 | s--; |
410 | break; |
411 | } |
412 | } |
413 | if (s >= littleend) |
414 | return big+1; |
378cc40b |
415 | } |
a687059c |
416 | return Nullch; |
378cc40b |
417 | } |
a687059c |
418 | |
bbce6d69 |
419 | /* |
420 | * Set up for a new ctype locale. |
421 | */ |
55497cff |
422 | void |
bbce6d69 |
423 | perl_new_ctype(newctype) |
424 | char *newctype; |
ef7eada9 |
425 | { |
36477c24 |
426 | #ifdef USE_LOCALE_CTYPE |
427 | |
bbce6d69 |
428 | int i; |
ef7eada9 |
429 | |
bbce6d69 |
430 | for (i = 0; i < 256; i++) { |
431 | if (isUPPER_LC(i)) |
432 | fold_locale[i] = toLOWER_LC(i); |
433 | else if (isLOWER_LC(i)) |
434 | fold_locale[i] = toUPPER_LC(i); |
435 | else |
436 | fold_locale[i] = i; |
437 | } |
bbce6d69 |
438 | |
36477c24 |
439 | #endif /* USE_LOCALE_CTYPE */ |
440 | } |
bbce6d69 |
441 | |
442 | /* |
443 | * Set up for a new collation locale. |
444 | */ |
445 | void |
446 | perl_new_collate(newcoll) |
447 | char *newcoll; |
448 | { |
36477c24 |
449 | #ifdef USE_LOCALE_COLLATE |
450 | |
bbce6d69 |
451 | if (! newcoll) { |
452 | if (collation_name) { |
453 | ++collation_ix; |
454 | Safefree(collation_name); |
455 | collation_name = NULL; |
456 | collation_standard = TRUE; |
bbce6d69 |
457 | collxfrm_base = 0; |
458 | collxfrm_mult = 2; |
bbce6d69 |
459 | } |
460 | return; |
461 | } |
462 | |
463 | if (! collation_name || strNE(collation_name, newcoll)) { |
464 | ++collation_ix; |
465 | Safefree(collation_name); |
466 | collation_name = savepv(newcoll); |
ff68c719 |
467 | collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); |
bbce6d69 |
468 | |
bbce6d69 |
469 | { |
470 | /* 2: at most so many chars ('a', 'b'). */ |
471 | /* 50: surely no system expands a char more. */ |
472 | #define XFRMBUFSIZE (2 * 50) |
473 | char xbuf[XFRMBUFSIZE]; |
474 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); |
475 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); |
476 | SSize_t mult = fb - fa; |
477 | if (mult < 1) |
478 | croak("strxfrm() gets absurd"); |
479 | collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
480 | collxfrm_mult = mult; |
481 | } |
bbce6d69 |
482 | } |
bbce6d69 |
483 | |
36477c24 |
484 | #endif /* USE_LOCALE_COLLATE */ |
485 | } |
bbce6d69 |
486 | |
487 | /* |
488 | * Set up for a new numeric locale. |
489 | */ |
490 | void |
491 | perl_new_numeric(newnum) |
492 | char *newnum; |
493 | { |
36477c24 |
494 | #ifdef USE_LOCALE_NUMERIC |
495 | |
bbce6d69 |
496 | if (! newnum) { |
497 | if (numeric_name) { |
498 | Safefree(numeric_name); |
499 | numeric_name = NULL; |
500 | numeric_standard = TRUE; |
501 | numeric_local = TRUE; |
502 | } |
503 | return; |
504 | } |
505 | |
506 | if (! numeric_name || strNE(numeric_name, newnum)) { |
507 | Safefree(numeric_name); |
508 | numeric_name = savepv(newnum); |
ff68c719 |
509 | numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
bbce6d69 |
510 | numeric_local = TRUE; |
511 | } |
36477c24 |
512 | |
513 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
514 | } |
515 | |
516 | void |
36477c24 |
517 | perl_set_numeric_standard() |
bbce6d69 |
518 | { |
5f05dabc |
519 | #ifdef USE_LOCALE_NUMERIC |
520 | |
bbce6d69 |
521 | if (! numeric_standard) { |
522 | setlocale(LC_NUMERIC, "C"); |
523 | numeric_standard = TRUE; |
524 | numeric_local = FALSE; |
525 | } |
5f05dabc |
526 | |
527 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
528 | } |
529 | |
530 | void |
36477c24 |
531 | perl_set_numeric_local() |
bbce6d69 |
532 | { |
5f05dabc |
533 | #ifdef USE_LOCALE_NUMERIC |
534 | |
bbce6d69 |
535 | if (! numeric_local) { |
536 | setlocale(LC_NUMERIC, numeric_name); |
537 | numeric_standard = FALSE; |
538 | numeric_local = TRUE; |
539 | } |
bbce6d69 |
540 | |
36477c24 |
541 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
542 | } |
36477c24 |
543 | |
bbce6d69 |
544 | |
36477c24 |
545 | /* |
546 | * Initialize locale awareness. |
547 | */ |
f0c5b223 |
548 | int |
1050c9ca |
549 | perl_init_i18nl10n(printwarn) |
f0c5b223 |
550 | int printwarn; |
551 | { |
552 | int ok = 1; |
553 | /* returns |
554 | * 1 = set ok or not applicable, |
555 | * 0 = fallback to C locale, |
556 | * -1 = fallback to C locale failed |
557 | */ |
bbce6d69 |
558 | |
36477c24 |
559 | #ifdef USE_LOCALE |
bbce6d69 |
560 | |
36477c24 |
561 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
562 | char *curctype = NULL; |
36477c24 |
563 | #endif /* USE_LOCALE_CTYPE */ |
564 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
565 | char *curcoll = NULL; |
36477c24 |
566 | #endif /* USE_LOCALE_COLLATE */ |
567 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
568 | char *curnum = NULL; |
36477c24 |
569 | #endif /* USE_LOCALE_NUMERIC */ |
02b32252 |
570 | char *lc_all = getenv("LC_ALL"); |
5f05dabc |
571 | char *lang = getenv("LANG"); |
bbce6d69 |
572 | bool setlocale_failure = FALSE; |
f0c5b223 |
573 | |
02b32252 |
574 | #ifdef LOCALE_ENVIRON_REQUIRED |
575 | |
576 | /* |
577 | * Ultrix setlocale(..., "") fails if there are no environment |
578 | * variables from which to get a locale name. |
579 | */ |
580 | |
581 | bool done = FALSE; |
582 | |
583 | #ifdef LC_ALL |
584 | if (lang) { |
585 | if (setlocale(LC_ALL, "")) |
586 | done = TRUE; |
587 | else |
588 | setlocale_failure = TRUE; |
589 | } |
590 | if (!setlocale_failure) |
591 | #endif /* LC_ALL */ |
592 | { |
593 | #ifdef USE_LOCALE_CTYPE |
594 | if (! (curctype = setlocale(LC_CTYPE, |
595 | (!done && (lang || getenv("LC_CTYPE"))) |
596 | ? "" : Nullch))) |
597 | setlocale_failure = TRUE; |
598 | #endif /* USE_LOCALE_CTYPE */ |
599 | #ifdef USE_LOCALE_COLLATE |
600 | if (! (curcoll = setlocale(LC_COLLATE, |
601 | (!done && (lang || getenv("LC_COLLATE"))) |
602 | ? "" : Nullch))) |
603 | setlocale_failure = TRUE; |
604 | #endif /* USE_LOCALE_COLLATE */ |
605 | #ifdef USE_LOCALE_NUMERIC |
606 | if (! (curnum = setlocale(LC_NUMERIC, |
607 | (!done && (lang || getenv("LC_NUMERIC"))) |
608 | ? "" : Nullch))) |
609 | setlocale_failure = TRUE; |
610 | #endif /* USE_LOCALE_NUMERIC */ |
611 | } |
612 | |
613 | #else /* !LOCALE_ENVIRON_REQUIRED */ |
614 | |
bbce6d69 |
615 | #ifdef LC_ALL |
5f05dabc |
616 | |
bbce6d69 |
617 | if (! setlocale(LC_ALL, "")) |
618 | setlocale_failure = TRUE; |
5f05dabc |
619 | else { |
620 | #ifdef USE_LOCALE_CTYPE |
621 | curctype = setlocale(LC_CTYPE, Nullch); |
622 | #endif /* USE_LOCALE_CTYPE */ |
623 | #ifdef USE_LOCALE_COLLATE |
624 | curcoll = setlocale(LC_COLLATE, Nullch); |
625 | #endif /* USE_LOCALE_COLLATE */ |
626 | #ifdef USE_LOCALE_NUMERIC |
627 | curnum = setlocale(LC_NUMERIC, Nullch); |
628 | #endif /* USE_LOCALE_NUMERIC */ |
629 | } |
630 | |
631 | #else /* !LC_ALL */ |
bbce6d69 |
632 | |
36477c24 |
633 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
634 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
bbce6d69 |
635 | setlocale_failure = TRUE; |
36477c24 |
636 | #endif /* USE_LOCALE_CTYPE */ |
637 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
638 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
bbce6d69 |
639 | setlocale_failure = TRUE; |
36477c24 |
640 | #endif /* USE_LOCALE_COLLATE */ |
641 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
642 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
bbce6d69 |
643 | setlocale_failure = TRUE; |
36477c24 |
644 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
645 | |
5f05dabc |
646 | #endif /* LC_ALL */ |
647 | |
02b32252 |
648 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
649 | |
5f05dabc |
650 | if (setlocale_failure) { |
651 | char *p; |
652 | bool locwarn = (printwarn > 1 || |
653 | printwarn && |
654 | (!(p = getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a |
655 | |
5f05dabc |
656 | if (locwarn) { |
657 | #ifdef LC_ALL |
658 | |
659 | PerlIO_printf(PerlIO_stderr(), |
660 | "perl: warning: Setting locale failed.\n"); |
661 | |
662 | #else /* !LC_ALL */ |
663 | |
ef7eada9 |
664 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
665 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 |
666 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
667 | if (! curctype) |
5f05dabc |
668 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 |
669 | #endif /* USE_LOCALE_CTYPE */ |
670 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
671 | if (! curcoll) |
5f05dabc |
672 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 |
673 | #endif /* USE_LOCALE_COLLATE */ |
674 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
675 | if (! curnum) |
5f05dabc |
676 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 |
677 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
678 | PerlIO_printf(PerlIO_stderr(), "\n"); |
679 | |
5f05dabc |
680 | #endif /* LC_ALL */ |
681 | |
760ac839 |
682 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
683 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 |
684 | |
685 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
686 | "\tLC_ALL = %c%s%c,\n", |
687 | lc_all ? '"' : '(', |
688 | lc_all ? lc_all : "unset", |
689 | lc_all ? '"' : ')'); |
5f05dabc |
690 | |
691 | { |
692 | char **e; |
693 | for (e = environ; *e; e++) { |
694 | if (strnEQ(*e, "LC_", 3) |
695 | && strnNE(*e, "LC_ALL=", 7) |
696 | && (p = strchr(*e, '='))) |
697 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", |
fb73857a |
698 | (int)(p - *e), *e, p + 1); |
5f05dabc |
699 | } |
700 | } |
701 | |
ef7eada9 |
702 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
703 | "\tLANG = %c%s%c\n", |
5f05dabc |
704 | lang ? '"' : '(', |
bbce6d69 |
705 | lang ? lang : "unset", |
706 | lang ? '"' : ')'); |
ef7eada9 |
707 | |
bbce6d69 |
708 | PerlIO_printf(PerlIO_stderr(), |
709 | " are supported and installed on your system.\n"); |
5f05dabc |
710 | } |
ef7eada9 |
711 | |
5f05dabc |
712 | #ifdef LC_ALL |
713 | |
714 | if (setlocale(LC_ALL, "C")) { |
715 | if (locwarn) |
716 | PerlIO_printf(PerlIO_stderr(), |
717 | "perl: warning: Falling back to the standard locale (\"C\").\n"); |
bbce6d69 |
718 | ok = 0; |
ef7eada9 |
719 | } |
5f05dabc |
720 | else { |
721 | if (locwarn) |
722 | PerlIO_printf(PerlIO_stderr(), |
723 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); |
724 | ok = -1; |
725 | } |
bbce6d69 |
726 | |
5f05dabc |
727 | #else /* ! LC_ALL */ |
728 | |
729 | if (0 |
36477c24 |
730 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
731 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 |
732 | #endif /* USE_LOCALE_CTYPE */ |
733 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
734 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 |
735 | #endif /* USE_LOCALE_COLLATE */ |
736 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
737 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 |
738 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
739 | ) |
740 | { |
741 | if (locwarn) |
bbce6d69 |
742 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc |
743 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
744 | ok = -1; |
bbce6d69 |
745 | } |
5f05dabc |
746 | |
bbce6d69 |
747 | #endif /* ! LC_ALL */ |
5f05dabc |
748 | |
749 | #ifdef USE_LOCALE_CTYPE |
750 | curctype = setlocale(LC_CTYPE, Nullch); |
751 | #endif /* USE_LOCALE_CTYPE */ |
752 | #ifdef USE_LOCALE_COLLATE |
753 | curcoll = setlocale(LC_COLLATE, Nullch); |
754 | #endif /* USE_LOCALE_COLLATE */ |
755 | #ifdef USE_LOCALE_NUMERIC |
756 | curnum = setlocale(LC_NUMERIC, Nullch); |
757 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
758 | } |
759 | |
36477c24 |
760 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
761 | perl_new_ctype(curctype); |
36477c24 |
762 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 |
763 | |
36477c24 |
764 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
765 | perl_new_collate(curcoll); |
36477c24 |
766 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
767 | |
36477c24 |
768 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
769 | perl_new_numeric(curnum); |
36477c24 |
770 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
771 | |
36477c24 |
772 | #endif /* USE_LOCALE */ |
ef7eada9 |
773 | |
f0c5b223 |
774 | return ok; |
775 | } |
776 | |
bbce6d69 |
777 | /* Backwards compatibility. */ |
778 | int |
779 | perl_init_i18nl14n(printwarn) |
780 | int printwarn; |
781 | { |
5f05dabc |
782 | return perl_init_i18nl10n(printwarn); |
bbce6d69 |
783 | } |
ef7eada9 |
784 | |
36477c24 |
785 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 |
786 | |
bbce6d69 |
787 | /* |
788 | * mem_collxfrm() is a bit like strxfrm() but with two important |
789 | * differences. First, it handles embedded NULs. Second, it allocates |
790 | * a bit more memory than needed for the transformed data itself. |
791 | * The real transformed data begins at offset sizeof(collationix). |
792 | * Please see sv_collxfrm() to see how this is used. |
793 | */ |
794 | char * |
795 | mem_collxfrm(s, len, xlen) |
796 | const char *s; |
797 | STRLEN len; |
798 | STRLEN *xlen; |
799 | { |
800 | char *xbuf; |
801 | STRLEN xalloc, xin, xout; |
802 | |
803 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ |
804 | /* the +1 is for the terminating NUL. */ |
805 | |
806 | xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1; |
807 | New(171, xbuf, xalloc, char); |
808 | if (! xbuf) |
809 | goto bad; |
810 | |
811 | *(U32*)xbuf = collation_ix; |
812 | xout = sizeof(collation_ix); |
813 | for (xin = 0; xin < len; ) { |
814 | SSize_t xused; |
815 | |
816 | for (;;) { |
817 | xused = strxfrm(xbuf + xout, s + xin, xalloc - xout); |
818 | if (xused == -1) |
819 | goto bad; |
820 | if (xused < xalloc - xout) |
821 | break; |
822 | xalloc = (2 * xalloc) + 1; |
823 | Renew(xbuf, xalloc, char); |
824 | if (! xbuf) |
825 | goto bad; |
826 | } |
ef7eada9 |
827 | |
bbce6d69 |
828 | xin += strlen(s + xin) + 1; |
829 | xout += xused; |
830 | |
831 | /* Embedded NULs are understood but silently skipped |
832 | * because they make no sense in locale collation. */ |
833 | } |
ef7eada9 |
834 | |
bbce6d69 |
835 | xbuf[xout] = '\0'; |
836 | *xlen = xout - sizeof(collation_ix); |
837 | return xbuf; |
838 | |
839 | bad: |
840 | Safefree(xbuf); |
841 | *xlen = 0; |
842 | return NULL; |
ef7eada9 |
843 | } |
844 | |
36477c24 |
845 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
846 | |
378cc40b |
847 | void |
bbce6d69 |
848 | fbm_compile(sv) |
79072805 |
849 | SV *sv; |
378cc40b |
850 | { |
a687059c |
851 | register unsigned char *s; |
852 | register unsigned char *table; |
79072805 |
853 | register U32 i; |
854 | register U32 len = SvCUR(sv); |
855 | I32 rarest = 0; |
856 | U32 frequency = 256; |
857 | |
748a9306 |
858 | if (len > 255) |
859 | return; /* can't have offsets that big */ |
79072805 |
860 | Sv_Grow(sv,len+258); |
463ee0b2 |
861 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
a687059c |
862 | s = table - 2; |
863 | for (i = 0; i < 256; i++) { |
378cc40b |
864 | table[i] = len; |
865 | } |
866 | i = 0; |
463ee0b2 |
867 | while (s >= (unsigned char*)(SvPVX(sv))) |
a687059c |
868 | { |
bbce6d69 |
869 | if (table[*s] == len) |
870 | table[*s] = i; |
378cc40b |
871 | s--,i++; |
872 | } |
79072805 |
873 | sv_upgrade(sv, SVt_PVBM); |
bbce6d69 |
874 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 |
875 | SvVALID_on(sv); |
378cc40b |
876 | |
463ee0b2 |
877 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 |
878 | for (i = 0; i < len; i++) { |
879 | if (freq[s[i]] < frequency) { |
880 | rarest = i; |
881 | frequency = freq[s[i]]; |
378cc40b |
882 | } |
883 | } |
79072805 |
884 | BmRARE(sv) = s[rarest]; |
885 | BmPREVIOUS(sv) = rarest; |
760ac839 |
886 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b |
887 | } |
888 | |
378cc40b |
889 | char * |
79072805 |
890 | fbm_instr(big, bigend, littlestr) |
a687059c |
891 | unsigned char *big; |
892 | register unsigned char *bigend; |
79072805 |
893 | SV *littlestr; |
378cc40b |
894 | { |
a687059c |
895 | register unsigned char *s; |
79072805 |
896 | register I32 tmp; |
897 | register I32 littlelen; |
a687059c |
898 | register unsigned char *little; |
899 | register unsigned char *table; |
900 | register unsigned char *olds; |
901 | register unsigned char *oldlittle; |
378cc40b |
902 | |
79072805 |
903 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e |
904 | STRLEN len; |
905 | char *l = SvPV(littlestr,len); |
906 | if (!len) |
d48672a2 |
907 | return (char*)big; |
a0d0e21e |
908 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 |
909 | } |
378cc40b |
910 | |
79072805 |
911 | littlelen = SvCUR(littlestr); |
912 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
0f85fab0 |
913 | if (littlelen > bigend - big) |
914 | return Nullch; |
463ee0b2 |
915 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 |
916 | s = bigend - littlelen; |
36477c24 |
917 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 |
918 | return (char*)s; /* how sweet it is */ |
919 | else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' |
920 | && s > big) { |
921 | s--; |
36477c24 |
922 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 |
923 | return (char*)s; |
a687059c |
924 | } |
bbce6d69 |
925 | return Nullch; |
a687059c |
926 | } |
463ee0b2 |
927 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 |
928 | if (--littlelen >= bigend - big) |
929 | return Nullch; |
930 | s = big + littlelen; |
a687059c |
931 | oldlittle = little = table - 2; |
bbce6d69 |
932 | if (s < bigend) { |
933 | top2: |
934 | /*SUPPRESS 560*/ |
935 | if (tmp = table[*s]) { |
62b28dd9 |
936 | #ifdef POINTERRIGOR |
bbce6d69 |
937 | if (bigend - s > tmp) { |
938 | s += tmp; |
939 | goto top2; |
940 | } |
62b28dd9 |
941 | #else |
bbce6d69 |
942 | if ((s += tmp) < bigend) |
943 | goto top2; |
62b28dd9 |
944 | #endif |
bbce6d69 |
945 | return Nullch; |
a687059c |
946 | } |
bbce6d69 |
947 | else { |
948 | tmp = littlelen; /* less expensive than calling strncmp() */ |
949 | olds = s; |
950 | while (tmp--) { |
951 | if (*--s == *--little) |
952 | continue; |
953 | s = olds + 1; /* here we pay the price for failure */ |
954 | little = oldlittle; |
955 | if (s < bigend) /* fake up continue to outer loop */ |
62b28dd9 |
956 | goto top2; |
62b28dd9 |
957 | return Nullch; |
a687059c |
958 | } |
bbce6d69 |
959 | return (char *)s; |
378cc40b |
960 | } |
961 | } |
962 | return Nullch; |
963 | } |
964 | |
965 | char * |
966 | screaminstr(bigstr, littlestr) |
79072805 |
967 | SV *bigstr; |
968 | SV *littlestr; |
378cc40b |
969 | { |
a687059c |
970 | register unsigned char *s, *x; |
971 | register unsigned char *big; |
79072805 |
972 | register I32 pos; |
973 | register I32 previous; |
974 | register I32 first; |
a687059c |
975 | register unsigned char *little; |
976 | register unsigned char *bigend; |
977 | register unsigned char *littleend; |
378cc40b |
978 | |
79072805 |
979 | if ((pos = screamfirst[BmRARE(littlestr)]) < 0) |
378cc40b |
980 | return Nullch; |
463ee0b2 |
981 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 |
982 | littleend = little + SvCUR(littlestr); |
378cc40b |
983 | first = *little++; |
79072805 |
984 | previous = BmPREVIOUS(littlestr); |
463ee0b2 |
985 | big = (unsigned char *)(SvPVX(bigstr)); |
79072805 |
986 | bigend = big + SvCUR(bigstr); |
378cc40b |
987 | while (pos < previous) { |
988 | if (!(pos += screamnext[pos])) |
989 | return Nullch; |
990 | } |
de3bb511 |
991 | #ifdef POINTERRIGOR |
bbce6d69 |
992 | do { |
993 | if (big[pos-previous] != first) |
994 | continue; |
995 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
996 | if (x >= bigend) |
997 | return Nullch; |
998 | if (*s++ != *x++) { |
999 | s--; |
1000 | break; |
de3bb511 |
1001 | } |
bbce6d69 |
1002 | } |
1003 | if (s == littleend) |
1004 | return (char *)(big+pos-previous); |
1005 | } while ( pos += screamnext[pos] ); |
de3bb511 |
1006 | #else /* !POINTERRIGOR */ |
1007 | big -= previous; |
bbce6d69 |
1008 | do { |
1009 | if (big[pos] != first) |
1010 | continue; |
1011 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
1012 | if (x >= bigend) |
1013 | return Nullch; |
1014 | if (*s++ != *x++) { |
1015 | s--; |
1016 | break; |
378cc40b |
1017 | } |
bbce6d69 |
1018 | } |
1019 | if (s == littleend) |
1020 | return (char *)(big+pos); |
1021 | } while ( pos += screamnext[pos] ); |
de3bb511 |
1022 | #endif /* POINTERRIGOR */ |
8d063cd8 |
1023 | return Nullch; |
1024 | } |
1025 | |
79072805 |
1026 | I32 |
bbce6d69 |
1027 | ibcmp(s1, s2, len) |
1028 | char *s1, *s2; |
79072805 |
1029 | register I32 len; |
1030 | { |
bbce6d69 |
1031 | register U8 *a = (U8 *)s1; |
1032 | register U8 *b = (U8 *)s2; |
79072805 |
1033 | while (len--) { |
bbce6d69 |
1034 | if (*a != *b && *a != fold[*b]) |
1035 | return 1; |
1036 | a++,b++; |
1037 | } |
1038 | return 0; |
1039 | } |
1040 | |
1041 | I32 |
1042 | ibcmp_locale(s1, s2, len) |
1043 | char *s1, *s2; |
1044 | register I32 len; |
1045 | { |
1046 | register U8 *a = (U8 *)s1; |
1047 | register U8 *b = (U8 *)s2; |
1048 | while (len--) { |
1049 | if (*a != *b && *a != fold_locale[*b]) |
1050 | return 1; |
1051 | a++,b++; |
79072805 |
1052 | } |
1053 | return 0; |
1054 | } |
1055 | |
8d063cd8 |
1056 | /* copy a string to a safe spot */ |
1057 | |
1058 | char * |
a0d0e21e |
1059 | savepv(sv) |
79072805 |
1060 | char *sv; |
8d063cd8 |
1061 | { |
a687059c |
1062 | register char *newaddr; |
8d063cd8 |
1063 | |
79072805 |
1064 | New(902,newaddr,strlen(sv)+1,char); |
1065 | (void)strcpy(newaddr,sv); |
8d063cd8 |
1066 | return newaddr; |
1067 | } |
1068 | |
a687059c |
1069 | /* same thing but with a known length */ |
1070 | |
1071 | char * |
a0d0e21e |
1072 | savepvn(sv, len) |
79072805 |
1073 | char *sv; |
1074 | register I32 len; |
a687059c |
1075 | { |
1076 | register char *newaddr; |
1077 | |
1078 | New(903,newaddr,len+1,char); |
79072805 |
1079 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c |
1080 | newaddr[len] = '\0'; /* is now */ |
1081 | return newaddr; |
1082 | } |
1083 | |
fc36a67e |
1084 | /* the SV for form() and mess() is not kept in an arena */ |
1085 | |
1086 | static SV * |
1087 | mess_alloc() |
1088 | { |
1089 | SV *sv; |
1090 | XPVMG *any; |
1091 | |
1092 | /* Create as PVMG now, to avoid any upgrading later */ |
1093 | New(905, sv, 1, SV); |
1094 | Newz(905, any, 1, XPVMG); |
1095 | SvFLAGS(sv) = SVt_PVMG; |
1096 | SvANY(sv) = (void*)any; |
1097 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ |
1098 | return sv; |
1099 | } |
1100 | |
a0d0e21e |
1101 | #ifdef I_STDARG |
8990e307 |
1102 | char * |
46fc3d4c |
1103 | form(const char* pat, ...) |
a687059c |
1104 | #else |
1105 | /*VARARGS0*/ |
de3bb511 |
1106 | char * |
46fc3d4c |
1107 | form(pat, va_alist) |
71be2cbc |
1108 | const char *pat; |
46fc3d4c |
1109 | va_dcl |
8990e307 |
1110 | #endif |
1111 | { |
46fc3d4c |
1112 | va_list args; |
1113 | #ifdef I_STDARG |
1114 | va_start(args, pat); |
a687059c |
1115 | #else |
46fc3d4c |
1116 | va_start(args); |
d48672a2 |
1117 | #endif |
fc36a67e |
1118 | if (!mess_sv) |
1119 | mess_sv = mess_alloc(); |
1120 | sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c |
1121 | va_end(args); |
fc36a67e |
1122 | return SvPVX(mess_sv); |
46fc3d4c |
1123 | } |
a687059c |
1124 | |
46fc3d4c |
1125 | char * |
1126 | mess(pat, args) |
1127 | const char *pat; |
1128 | va_list *args; |
1129 | { |
1130 | SV *sv; |
1131 | static char dgd[] = " during global destruction.\n"; |
1132 | |
46fc3d4c |
1133 | if (!mess_sv) |
fc36a67e |
1134 | mess_sv = mess_alloc(); |
46fc3d4c |
1135 | sv = mess_sv; |
fc36a67e |
1136 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c |
1137 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
e858de61 |
1138 | dTHR; |
2304df62 |
1139 | if (dirty) |
46fc3d4c |
1140 | sv_catpv(sv, dgd); |
2304df62 |
1141 | else { |
46fc3d4c |
1142 | if (curcop->cop_line) |
fc36a67e |
1143 | sv_catpvf(sv, " at %_ line %ld", |
46fc3d4c |
1144 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
c07a80fd |
1145 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
1146 | bool line_mode = (RsSIMPLE(rs) && |
1147 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); |
46fc3d4c |
1148 | sv_catpvf(sv, ", <%s> %s %ld", |
1149 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), |
1150 | line_mode ? "line" : "chunk", |
1151 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 |
1152 | } |
46fc3d4c |
1153 | sv_catpv(sv, ".\n"); |
a687059c |
1154 | } |
a687059c |
1155 | } |
46fc3d4c |
1156 | return SvPVX(sv); |
a687059c |
1157 | } |
1158 | |
ecfc5424 |
1159 | #ifdef I_STDARG |
36477c24 |
1160 | OP * |
71be2cbc |
1161 | die(const char* pat, ...) |
36477c24 |
1162 | #else |
1163 | /*VARARGS0*/ |
1164 | OP * |
1165 | die(pat, va_alist) |
71be2cbc |
1166 | const char *pat; |
36477c24 |
1167 | va_dcl |
1168 | #endif |
1169 | { |
5dc0d613 |
1170 | dTHR; |
36477c24 |
1171 | va_list args; |
1172 | char *message; |
035902c7 |
1173 | I32 oldrunlevel = runlevel; |
36477c24 |
1174 | int was_in_eval = in_eval; |
1175 | HV *stash; |
1176 | GV *gv; |
1177 | CV *cv; |
1178 | |
57d3b86d |
1179 | #ifdef USE_THREADS |
199100c8 |
1180 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1181 | "%p: die: curstack = %p, mainstack = %p\n", |
1182 | thr, curstack, mainstack)); |
57d3b86d |
1183 | #endif /* USE_THREADS */ |
36477c24 |
1184 | /* We have to switch back to mainstack or die_where may try to pop |
1185 | * the eval block from the wrong stack if die is being called from a |
1186 | * signal handler. - dkindred@cs.cmu.edu */ |
1187 | if (curstack != mainstack) { |
1188 | dSP; |
1189 | SWITCHSTACK(curstack, mainstack); |
1190 | } |
1191 | |
1192 | #ifdef I_STDARG |
1193 | va_start(args, pat); |
1194 | #else |
1195 | va_start(args); |
1196 | #endif |
1197 | message = mess(pat, &args); |
1198 | va_end(args); |
1199 | |
57d3b86d |
1200 | #ifdef USE_THREADS |
199100c8 |
1201 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1202 | "%p: die: message = %s\ndiehook = %p\n", |
1203 | thr, message, diehook)); |
57d3b86d |
1204 | #endif /* USE_THREADS */ |
1738f5c4 |
1205 | if (diehook) { |
1206 | /* sv_2cv might call croak() */ |
1207 | SV *olddiehook = diehook; |
1208 | ENTER; |
1209 | SAVESPTR(diehook); |
1210 | diehook = Nullsv; |
1211 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1212 | LEAVE; |
1213 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
1214 | dSP; |
774d564b |
1215 | SV *msg; |
1216 | |
1217 | ENTER; |
1218 | msg = newSVpv(message, 0); |
1219 | SvREADONLY_on(msg); |
1220 | SAVEFREESV(msg); |
1738f5c4 |
1221 | |
1222 | PUSHMARK(sp); |
1223 | XPUSHs(msg); |
1224 | PUTBACK; |
1225 | perl_call_sv((SV*)cv, G_DISCARD); |
1226 | |
774d564b |
1227 | LEAVE; |
1738f5c4 |
1228 | } |
36477c24 |
1229 | } |
1230 | |
1231 | restartop = die_where(message); |
57d3b86d |
1232 | #ifdef USE_THREADS |
d9f997d7 |
1233 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
199100c8 |
1234 | "%p: die: restartop = %p, was_in_eval = %d, oldrunlevel = %d\n", |
1235 | thr, restartop, was_in_eval, oldrunlevel)); |
57d3b86d |
1236 | #endif /* USE_THREADS */ |
36477c24 |
1237 | if ((!restartop && was_in_eval) || oldrunlevel > 1) |
54310121 |
1238 | JMPENV_JUMP(3); |
36477c24 |
1239 | return restartop; |
1240 | } |
1241 | |
1242 | #ifdef I_STDARG |
79072805 |
1243 | void |
71be2cbc |
1244 | croak(const char* pat, ...) |
463ee0b2 |
1245 | #else |
8990e307 |
1246 | /*VARARGS0*/ |
1247 | void |
1248 | croak(pat, va_alist) |
1249 | char *pat; |
1250 | va_dcl |
463ee0b2 |
1251 | #endif |
a687059c |
1252 | { |
11343788 |
1253 | dTHR; |
a687059c |
1254 | va_list args; |
de3bb511 |
1255 | char *message; |
748a9306 |
1256 | HV *stash; |
1257 | GV *gv; |
1258 | CV *cv; |
a687059c |
1259 | |
a0d0e21e |
1260 | #ifdef I_STDARG |
8990e307 |
1261 | va_start(args, pat); |
1262 | #else |
a687059c |
1263 | va_start(args); |
8990e307 |
1264 | #endif |
2304df62 |
1265 | message = mess(pat, &args); |
a687059c |
1266 | va_end(args); |
11343788 |
1267 | #ifdef USE_THREADS |
d9f997d7 |
1268 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
11343788 |
1269 | #endif /* USE_THREADS */ |
20cec16a |
1270 | if (diehook) { |
1738f5c4 |
1271 | /* sv_2cv might call croak() */ |
20cec16a |
1272 | SV *olddiehook = diehook; |
1738f5c4 |
1273 | ENTER; |
1274 | SAVESPTR(diehook); |
1275 | diehook = Nullsv; |
20cec16a |
1276 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 |
1277 | LEAVE; |
1278 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1279 | dSP; |
774d564b |
1280 | SV *msg; |
1281 | |
1282 | ENTER; |
1283 | msg = newSVpv(message, 0); |
1284 | SvREADONLY_on(msg); |
1285 | SAVEFREESV(msg); |
20cec16a |
1286 | |
1287 | PUSHMARK(sp); |
1738f5c4 |
1288 | XPUSHs(msg); |
20cec16a |
1289 | PUTBACK; |
1290 | perl_call_sv((SV*)cv, G_DISCARD); |
36477c24 |
1291 | |
774d564b |
1292 | LEAVE; |
20cec16a |
1293 | } |
748a9306 |
1294 | } |
a0d0e21e |
1295 | if (in_eval) { |
1296 | restartop = die_where(message); |
54310121 |
1297 | JMPENV_JUMP(3); |
a0d0e21e |
1298 | } |
760ac839 |
1299 | PerlIO_puts(PerlIO_stderr(),message); |
1300 | (void)PerlIO_flush(PerlIO_stderr()); |
f86702cc |
1301 | my_failure_exit(); |
a687059c |
1302 | } |
1303 | |
8990e307 |
1304 | void |
ecfc5424 |
1305 | #ifdef I_STDARG |
71be2cbc |
1306 | warn(const char* pat,...) |
463ee0b2 |
1307 | #else |
8990e307 |
1308 | /*VARARGS0*/ |
1309 | warn(pat,va_alist) |
71be2cbc |
1310 | const char *pat; |
8990e307 |
1311 | va_dcl |
463ee0b2 |
1312 | #endif |
a687059c |
1313 | { |
1314 | va_list args; |
de3bb511 |
1315 | char *message; |
748a9306 |
1316 | HV *stash; |
1317 | GV *gv; |
1318 | CV *cv; |
a687059c |
1319 | |
a0d0e21e |
1320 | #ifdef I_STDARG |
8990e307 |
1321 | va_start(args, pat); |
1322 | #else |
a687059c |
1323 | va_start(args); |
8990e307 |
1324 | #endif |
2304df62 |
1325 | message = mess(pat, &args); |
a687059c |
1326 | va_end(args); |
1327 | |
20cec16a |
1328 | if (warnhook) { |
1738f5c4 |
1329 | /* sv_2cv might call warn() */ |
11343788 |
1330 | dTHR; |
20cec16a |
1331 | SV *oldwarnhook = warnhook; |
1738f5c4 |
1332 | ENTER; |
1333 | SAVESPTR(warnhook); |
1334 | warnhook = Nullsv; |
20cec16a |
1335 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 |
1336 | LEAVE; |
1337 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1338 | dSP; |
774d564b |
1339 | SV *msg; |
1340 | |
1341 | ENTER; |
1342 | msg = newSVpv(message, 0); |
1343 | SvREADONLY_on(msg); |
1344 | SAVEFREESV(msg); |
1345 | |
20cec16a |
1346 | PUSHMARK(sp); |
774d564b |
1347 | XPUSHs(msg); |
20cec16a |
1348 | PUTBACK; |
1349 | perl_call_sv((SV*)cv, G_DISCARD); |
774d564b |
1350 | |
1351 | LEAVE; |
20cec16a |
1352 | return; |
1353 | } |
748a9306 |
1354 | } |
20cec16a |
1355 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c |
1356 | #ifdef LEAKTEST |
20cec16a |
1357 | DEBUG_L(xstat()); |
a687059c |
1358 | #endif |
20cec16a |
1359 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c |
1360 | } |
8d063cd8 |
1361 | |
a0d0e21e |
1362 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
3e3baf6d |
1363 | #ifndef WIN32 |
8d063cd8 |
1364 | void |
7c0587c8 |
1365 | my_setenv(nam,val) |
8d063cd8 |
1366 | char *nam, *val; |
1367 | { |
79072805 |
1368 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 |
1369 | |
fe14fcc3 |
1370 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 |
1371 | I32 j; |
1372 | I32 max; |
fe14fcc3 |
1373 | char **tmpenv; |
1374 | |
de3bb511 |
1375 | /*SUPPRESS 530*/ |
fe14fcc3 |
1376 | for (max = i; environ[max]; max++) ; |
1377 | New(901,tmpenv, max+2, char*); |
1378 | for (j=0; j<max; j++) /* copy environment */ |
a0d0e21e |
1379 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 |
1380 | tmpenv[max] = Nullch; |
1381 | environ = tmpenv; /* tell exec where it is now */ |
1382 | } |
a687059c |
1383 | if (!val) { |
e5ebf479 |
1384 | Safefree(environ[i]); |
a687059c |
1385 | while (environ[i]) { |
1386 | environ[i] = environ[i+1]; |
1387 | i++; |
1388 | } |
1389 | return; |
1390 | } |
8d063cd8 |
1391 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 |
1392 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 |
1393 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1394 | } |
fe14fcc3 |
1395 | else |
1396 | Safefree(environ[i]); |
a687059c |
1397 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 |
1398 | #ifndef MSDOS |
a687059c |
1399 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 |
1400 | #else |
1401 | /* MS-DOS requires environment variable names to be in uppercase */ |
fe14fcc3 |
1402 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1403 | * some utilities and applications may break because they only look |
1404 | * for upper case strings. (Fixed strupr() bug here.)] |
1405 | */ |
1406 | strcpy(environ[i],nam); strupr(environ[i]); |
62b28dd9 |
1407 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1408 | #endif /* MSDOS */ |
8d063cd8 |
1409 | } |
1410 | |
3e3baf6d |
1411 | #else /* if WIN32 */ |
68dc0745 |
1412 | |
1413 | void |
1414 | my_setenv(nam,val) |
1415 | char *nam, *val; |
1416 | { |
3e3baf6d |
1417 | |
1418 | #ifdef USE_WIN32_RTL_ENV |
1419 | |
68dc0745 |
1420 | register char *envstr; |
1421 | STRLEN namlen = strlen(nam); |
3e3baf6d |
1422 | STRLEN vallen; |
1423 | char *oldstr = environ[setenv_getix(nam)]; |
1424 | |
1425 | /* putenv() has totally broken semantics in both the Borland |
1426 | * and Microsoft CRTLs. They either store the passed pointer in |
1427 | * the environment without making a copy, or make a copy and don't |
1428 | * free it. And on top of that, they dont free() old entries that |
1429 | * are being replaced/deleted. This means the caller must |
1430 | * free any old entries somehow, or we end up with a memory |
1431 | * leak every time my_setenv() is called. One might think |
1432 | * one could directly manipulate environ[], like the UNIX code |
1433 | * above, but direct changes to environ are not allowed when |
1434 | * calling putenv(), since the RTLs maintain an internal |
1435 | * *copy* of environ[]. Bad, bad, *bad* stink. |
1436 | * GSAR 97-06-07 |
1437 | */ |
68dc0745 |
1438 | |
3e3baf6d |
1439 | if (!val) { |
1440 | if (!oldstr) |
1441 | return; |
1442 | val = ""; |
1443 | vallen = 0; |
1444 | } |
1445 | else |
1446 | vallen = strlen(val); |
fc36a67e |
1447 | New(904, envstr, namlen + vallen + 3, char); |
68dc0745 |
1448 | (void)sprintf(envstr,"%s=%s",nam,val); |
3e3baf6d |
1449 | (void)putenv(envstr); |
1450 | if (oldstr) |
1451 | Safefree(oldstr); |
1452 | #ifdef _MSC_VER |
1453 | Safefree(envstr); /* MSVCRT leaks without this */ |
1454 | #endif |
1455 | |
1456 | #else /* !USE_WIN32_RTL_ENV */ |
1457 | |
1458 | /* The sane way to deal with the environment. |
1459 | * Has these advantages over putenv() & co.: |
1460 | * * enables us to store a truly empty value in the |
1461 | * environment (like in UNIX). |
1462 | * * we don't have to deal with RTL globals, bugs and leaks. |
1463 | * * Much faster. |
1464 | * Why you may want to enable USE_WIN32_RTL_ENV: |
1465 | * * environ[] and RTL functions will not reflect changes, |
1466 | * which might be an issue if extensions want to access |
1467 | * the env. via RTL. This cuts both ways, since RTL will |
1468 | * not see changes made by extensions that call the Win32 |
1469 | * functions directly, either. |
1470 | * GSAR 97-06-07 |
1471 | */ |
1472 | SetEnvironmentVariable(nam,val); |
1473 | |
1474 | #endif |
1475 | } |
1476 | |
1477 | #endif /* WIN32 */ |
1478 | |
1479 | I32 |
1480 | setenv_getix(nam) |
1481 | char *nam; |
1482 | { |
1483 | register I32 i, len = strlen(nam); |
1484 | |
1485 | for (i = 0; environ[i]; i++) { |
1486 | if ( |
1487 | #ifdef WIN32 |
1488 | strnicmp(environ[i],nam,len) == 0 |
1489 | #else |
1490 | strnEQ(environ[i],nam,len) |
1491 | #endif |
1492 | && environ[i][len] == '=') |
1493 | break; /* strnEQ must come first to avoid */ |
1494 | } /* potential SEGV's */ |
1495 | return i; |
68dc0745 |
1496 | } |
1497 | |
a0d0e21e |
1498 | #endif /* !VMS */ |
378cc40b |
1499 | |
16d20bd9 |
1500 | #ifdef UNLINK_ALL_VERSIONS |
79072805 |
1501 | I32 |
378cc40b |
1502 | unlnk(f) /* unlink all versions of a file */ |
1503 | char *f; |
1504 | { |
79072805 |
1505 | I32 i; |
378cc40b |
1506 | |
1507 | for (i = 0; unlink(f) >= 0; i++) ; |
1508 | return i ? 0 : -1; |
1509 | } |
1510 | #endif |
1511 | |
85e6fe83 |
1512 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b |
1513 | char * |
7c0587c8 |
1514 | my_bcopy(from,to,len) |
378cc40b |
1515 | register char *from; |
1516 | register char *to; |
79072805 |
1517 | register I32 len; |
378cc40b |
1518 | { |
1519 | char *retval = to; |
1520 | |
7c0587c8 |
1521 | if (from - to >= 0) { |
1522 | while (len--) |
1523 | *to++ = *from++; |
1524 | } |
1525 | else { |
1526 | to += len; |
1527 | from += len; |
1528 | while (len--) |
faf8582f |
1529 | *(--to) = *(--from); |
7c0587c8 |
1530 | } |
378cc40b |
1531 | return retval; |
1532 | } |
ffed7fef |
1533 | #endif |
378cc40b |
1534 | |
fc36a67e |
1535 | #ifndef HAS_MEMSET |
1536 | void * |
1537 | my_memset(loc,ch,len) |
1538 | register char *loc; |
1539 | register I32 ch; |
1540 | register I32 len; |
1541 | { |
1542 | char *retval = loc; |
1543 | |
1544 | while (len--) |
1545 | *loc++ = ch; |
1546 | return retval; |
1547 | } |
1548 | #endif |
1549 | |
7c0587c8 |
1550 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b |
1551 | char * |
7c0587c8 |
1552 | my_bzero(loc,len) |
378cc40b |
1553 | register char *loc; |
79072805 |
1554 | register I32 len; |
378cc40b |
1555 | { |
1556 | char *retval = loc; |
1557 | |
1558 | while (len--) |
1559 | *loc++ = 0; |
1560 | return retval; |
1561 | } |
1562 | #endif |
7c0587c8 |
1563 | |
36477c24 |
1564 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 |
1565 | I32 |
7c0587c8 |
1566 | my_memcmp(s1,s2,len) |
36477c24 |
1567 | char *s1; |
1568 | char *s2; |
79072805 |
1569 | register I32 len; |
7c0587c8 |
1570 | { |
36477c24 |
1571 | register U8 *a = (U8 *)s1; |
1572 | register U8 *b = (U8 *)s2; |
79072805 |
1573 | register I32 tmp; |
7c0587c8 |
1574 | |
1575 | while (len--) { |
36477c24 |
1576 | if (tmp = *a++ - *b++) |
7c0587c8 |
1577 | return tmp; |
1578 | } |
1579 | return 0; |
1580 | } |
36477c24 |
1581 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c |
1582 | |
4633a7c4 |
1583 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 |
1584 | #ifndef HAS_VPRINTF |
a687059c |
1585 | |
85e6fe83 |
1586 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1587 | char * |
1588 | #else |
1589 | int |
1590 | #endif |
1591 | vsprintf(dest, pat, args) |
71be2cbc |
1592 | char *dest; |
1593 | const char *pat; |
1594 | char *args; |
a687059c |
1595 | { |
1596 | FILE fakebuf; |
1597 | |
1598 | fakebuf._ptr = dest; |
1599 | fakebuf._cnt = 32767; |
35c8bce7 |
1600 | #ifndef _IOSTRG |
1601 | #define _IOSTRG 0 |
1602 | #endif |
a687059c |
1603 | fakebuf._flag = _IOWRT|_IOSTRG; |
1604 | _doprnt(pat, args, &fakebuf); /* what a kludge */ |
1605 | (void)putc('\0', &fakebuf); |
85e6fe83 |
1606 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1607 | return(dest); |
1608 | #else |
1609 | return 0; /* perl doesn't use return value */ |
1610 | #endif |
1611 | } |
1612 | |
fe14fcc3 |
1613 | #endif /* HAS_VPRINTF */ |
4633a7c4 |
1614 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c |
1615 | |
1616 | #ifdef MYSWAP |
ffed7fef |
1617 | #if BYTEORDER != 0x4321 |
a687059c |
1618 | short |
748a9306 |
1619 | #ifndef CAN_PROTOTYPE |
a687059c |
1620 | my_swap(s) |
1621 | short s; |
748a9306 |
1622 | #else |
1623 | my_swap(short s) |
1624 | #endif |
a687059c |
1625 | { |
1626 | #if (BYTEORDER & 1) == 0 |
1627 | short result; |
1628 | |
1629 | result = ((s & 255) << 8) + ((s >> 8) & 255); |
1630 | return result; |
1631 | #else |
1632 | return s; |
1633 | #endif |
1634 | } |
1635 | |
1636 | long |
748a9306 |
1637 | #ifndef CAN_PROTOTYPE |
1638 | my_htonl(l) |
a687059c |
1639 | register long l; |
748a9306 |
1640 | #else |
1641 | my_htonl(long l) |
1642 | #endif |
a687059c |
1643 | { |
1644 | union { |
1645 | long result; |
ffed7fef |
1646 | char c[sizeof(long)]; |
a687059c |
1647 | } u; |
1648 | |
ffed7fef |
1649 | #if BYTEORDER == 0x1234 |
a687059c |
1650 | u.c[0] = (l >> 24) & 255; |
1651 | u.c[1] = (l >> 16) & 255; |
1652 | u.c[2] = (l >> 8) & 255; |
1653 | u.c[3] = l & 255; |
1654 | return u.result; |
1655 | #else |
ffed7fef |
1656 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1657 | croak("Unknown BYTEORDER\n"); |
a687059c |
1658 | #else |
79072805 |
1659 | register I32 o; |
1660 | register I32 s; |
a687059c |
1661 | |
ffed7fef |
1662 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1663 | u.c[o & 0xf] = (l >> s) & 255; |
a687059c |
1664 | } |
1665 | return u.result; |
1666 | #endif |
1667 | #endif |
1668 | } |
1669 | |
1670 | long |
748a9306 |
1671 | #ifndef CAN_PROTOTYPE |
1672 | my_ntohl(l) |
a687059c |
1673 | register long l; |
748a9306 |
1674 | #else |
1675 | my_ntohl(long l) |
1676 | #endif |
a687059c |
1677 | { |
1678 | union { |
1679 | long l; |
ffed7fef |
1680 | char c[sizeof(long)]; |
a687059c |
1681 | } u; |
1682 | |
ffed7fef |
1683 | #if BYTEORDER == 0x1234 |
a687059c |
1684 | u.c[0] = (l >> 24) & 255; |
1685 | u.c[1] = (l >> 16) & 255; |
1686 | u.c[2] = (l >> 8) & 255; |
1687 | u.c[3] = l & 255; |
1688 | return u.l; |
1689 | #else |
ffed7fef |
1690 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1691 | croak("Unknown BYTEORDER\n"); |
a687059c |
1692 | #else |
79072805 |
1693 | register I32 o; |
1694 | register I32 s; |
a687059c |
1695 | |
1696 | u.l = l; |
1697 | l = 0; |
ffed7fef |
1698 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1699 | l |= (u.c[o & 0xf] & 255) << s; |
a687059c |
1700 | } |
1701 | return l; |
1702 | #endif |
1703 | #endif |
1704 | } |
1705 | |
ffed7fef |
1706 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 |
1707 | #endif /* MYSWAP */ |
1708 | |
1709 | /* |
1710 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. |
1711 | * If these functions are defined, |
1712 | * the BYTEORDER is neither 0x1234 nor 0x4321. |
1713 | * However, this is not assumed. |
1714 | * -DWS |
1715 | */ |
1716 | |
1717 | #define HTOV(name,type) \ |
1718 | type \ |
1719 | name (n) \ |
1720 | register type n; \ |
1721 | { \ |
1722 | union { \ |
1723 | type value; \ |
1724 | char c[sizeof(type)]; \ |
1725 | } u; \ |
79072805 |
1726 | register I32 i; \ |
1727 | register I32 s; \ |
988174c1 |
1728 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1729 | u.c[i] = (n >> s) & 0xFF; \ |
1730 | } \ |
1731 | return u.value; \ |
1732 | } |
1733 | |
1734 | #define VTOH(name,type) \ |
1735 | type \ |
1736 | name (n) \ |
1737 | register type n; \ |
1738 | { \ |
1739 | union { \ |
1740 | type value; \ |
1741 | char c[sizeof(type)]; \ |
1742 | } u; \ |
79072805 |
1743 | register I32 i; \ |
1744 | register I32 s; \ |
988174c1 |
1745 | u.value = n; \ |
1746 | n = 0; \ |
1747 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1748 | n += (u.c[i] & 0xFF) << s; \ |
1749 | } \ |
1750 | return n; \ |
1751 | } |
1752 | |
1753 | #if defined(HAS_HTOVS) && !defined(htovs) |
1754 | HTOV(htovs,short) |
1755 | #endif |
1756 | #if defined(HAS_HTOVL) && !defined(htovl) |
1757 | HTOV(htovl,long) |
1758 | #endif |
1759 | #if defined(HAS_VTOHS) && !defined(vtohs) |
1760 | VTOH(vtohs,short) |
1761 | #endif |
1762 | #if defined(HAS_VTOHL) && !defined(vtohl) |
1763 | VTOH(vtohl,long) |
1764 | #endif |
a687059c |
1765 | |
5f05dabc |
1766 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
1767 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) |
760ac839 |
1768 | PerlIO * |
79072805 |
1769 | my_popen(cmd,mode) |
a687059c |
1770 | char *cmd; |
1771 | char *mode; |
1772 | { |
1773 | int p[2]; |
79072805 |
1774 | register I32 this, that; |
1775 | register I32 pid; |
1776 | SV *sv; |
1738f5c4 |
1777 | I32 doexec = strNE(cmd,"-"); |
a687059c |
1778 | |
ddcf38b7 |
1779 | #ifdef OS2 |
1780 | if (doexec) { |
1781 | return my_syspopen(cmd,mode); |
1782 | } |
1783 | #endif |
a687059c |
1784 | if (pipe(p) < 0) |
1785 | return Nullfp; |
1786 | this = (*mode == 'w'); |
1787 | that = !this; |
bbce6d69 |
1788 | if (doexec && tainting) { |
1789 | taint_env(); |
1790 | taint_proper("Insecure %s%s", "EXEC"); |
d48672a2 |
1791 | } |
a687059c |
1792 | while ((pid = (doexec?vfork():fork())) < 0) { |
1793 | if (errno != EAGAIN) { |
1794 | close(p[this]); |
1795 | if (!doexec) |
463ee0b2 |
1796 | croak("Can't fork"); |
a687059c |
1797 | return Nullfp; |
1798 | } |
1799 | sleep(5); |
1800 | } |
1801 | if (pid == 0) { |
79072805 |
1802 | GV* tmpgv; |
1803 | |
a687059c |
1804 | #define THIS that |
1805 | #define THAT this |
1806 | close(p[THAT]); |
1807 | if (p[THIS] != (*mode == 'r')) { |
1808 | dup2(p[THIS], *mode == 'r'); |
1809 | close(p[THIS]); |
1810 | } |
1811 | if (doexec) { |
a0d0e21e |
1812 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 |
1813 | int fd; |
1814 | |
1815 | #ifndef NOFILE |
1816 | #define NOFILE 20 |
1817 | #endif |
d48672a2 |
1818 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
ae986130 |
1819 | close(fd); |
1820 | #endif |
a687059c |
1821 | do_exec(cmd); /* may or may not use the shell */ |
1822 | _exit(1); |
1823 | } |
de3bb511 |
1824 | /*SUPPRESS 560*/ |
85e6fe83 |
1825 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
1826 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
9f68db38 |
1827 | forkprocess = 0; |
463ee0b2 |
1828 | hv_clear(pidstatus); /* we have no children */ |
a687059c |
1829 | return Nullfp; |
1830 | #undef THIS |
1831 | #undef THAT |
1832 | } |
62b28dd9 |
1833 | do_execfree(); /* free any memory malloced by child on vfork */ |
a687059c |
1834 | close(p[that]); |
62b28dd9 |
1835 | if (p[that] < p[this]) { |
1836 | dup2(p[this], p[that]); |
1837 | close(p[this]); |
1838 | p[this] = p[that]; |
1839 | } |
79072805 |
1840 | sv = *av_fetch(fdpid,p[this],TRUE); |
a0d0e21e |
1841 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
1842 | SvIVX(sv) = pid; |
a687059c |
1843 | forkprocess = pid; |
760ac839 |
1844 | return PerlIO_fdopen(p[this], mode); |
a687059c |
1845 | } |
7c0587c8 |
1846 | #else |
55497cff |
1847 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 |
1848 | FILE *popen(); |
760ac839 |
1849 | PerlIO * |
79072805 |
1850 | my_popen(cmd,mode) |
7c0587c8 |
1851 | char *cmd; |
1852 | char *mode; |
1853 | { |
760ac839 |
1854 | /* Needs work for PerlIO ! */ |
55497cff |
1855 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1856 | return popen(PerlIO_exportFILE(cmd, 0), mode); |
7c0587c8 |
1857 | } |
1858 | #endif |
1859 | |
1860 | #endif /* !DOSISH */ |
a687059c |
1861 | |
748a9306 |
1862 | #ifdef DUMP_FDS |
79072805 |
1863 | dump_fds(s) |
ae986130 |
1864 | char *s; |
1865 | { |
1866 | int fd; |
1867 | struct stat tmpstatbuf; |
1868 | |
760ac839 |
1869 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 |
1870 | for (fd = 0; fd < 32; fd++) { |
a0d0e21e |
1871 | if (Fstat(fd,&tmpstatbuf) >= 0) |
760ac839 |
1872 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 |
1873 | } |
760ac839 |
1874 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 |
1875 | } |
1876 | #endif |
1877 | |
fe14fcc3 |
1878 | #ifndef HAS_DUP2 |
fec02dd3 |
1879 | int |
a687059c |
1880 | dup2(oldfd,newfd) |
1881 | int oldfd; |
1882 | int newfd; |
1883 | { |
a0d0e21e |
1884 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 |
1885 | if (oldfd == newfd) |
1886 | return oldfd; |
62b28dd9 |
1887 | close(newfd); |
fec02dd3 |
1888 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 |
1889 | #else |
fc36a67e |
1890 | #define DUP2_MAX_FDS 256 |
1891 | int fdtmp[DUP2_MAX_FDS]; |
79072805 |
1892 | I32 fdx = 0; |
ae986130 |
1893 | int fd; |
1894 | |
fe14fcc3 |
1895 | if (oldfd == newfd) |
fec02dd3 |
1896 | return oldfd; |
a687059c |
1897 | close(newfd); |
fc36a67e |
1898 | /* good enough for low fd's... */ |
1899 | while ((fd = dup(oldfd)) != newfd && fd >= 0) { |
1900 | if (fdx >= DUP2_MAX_FDS) { |
1901 | close(fd); |
1902 | fd = -1; |
1903 | break; |
1904 | } |
ae986130 |
1905 | fdtmp[fdx++] = fd; |
fc36a67e |
1906 | } |
ae986130 |
1907 | while (fdx > 0) |
1908 | close(fdtmp[--fdx]); |
fec02dd3 |
1909 | return fd; |
62b28dd9 |
1910 | #endif |
a687059c |
1911 | } |
1912 | #endif |
1913 | |
ff68c719 |
1914 | |
1915 | #ifdef HAS_SIGACTION |
1916 | |
1917 | Sighandler_t |
1918 | rsignal(signo, handler) |
1919 | int signo; |
1920 | Sighandler_t handler; |
1921 | { |
1922 | struct sigaction act, oact; |
1923 | |
1924 | act.sa_handler = handler; |
1925 | sigemptyset(&act.sa_mask); |
1926 | act.sa_flags = 0; |
1927 | #ifdef SA_RESTART |
1928 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
1929 | #endif |
1930 | if (sigaction(signo, &act, &oact) == -1) |
36477c24 |
1931 | return SIG_ERR; |
ff68c719 |
1932 | else |
36477c24 |
1933 | return oact.sa_handler; |
ff68c719 |
1934 | } |
1935 | |
1936 | Sighandler_t |
1937 | rsignal_state(signo) |
1938 | int signo; |
1939 | { |
1940 | struct sigaction oact; |
1941 | |
1942 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) |
1943 | return SIG_ERR; |
1944 | else |
1945 | return oact.sa_handler; |
1946 | } |
1947 | |
1948 | int |
1949 | rsignal_save(signo, handler, save) |
1950 | int signo; |
1951 | Sighandler_t handler; |
1952 | Sigsave_t *save; |
1953 | { |
1954 | struct sigaction act; |
1955 | |
1956 | act.sa_handler = handler; |
1957 | sigemptyset(&act.sa_mask); |
1958 | act.sa_flags = 0; |
1959 | #ifdef SA_RESTART |
1960 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
1961 | #endif |
1962 | return sigaction(signo, &act, save); |
1963 | } |
1964 | |
1965 | int |
1966 | rsignal_restore(signo, save) |
1967 | int signo; |
1968 | Sigsave_t *save; |
1969 | { |
1970 | return sigaction(signo, save, (struct sigaction *)NULL); |
1971 | } |
1972 | |
1973 | #else /* !HAS_SIGACTION */ |
1974 | |
1975 | Sighandler_t |
1976 | rsignal(signo, handler) |
1977 | int signo; |
1978 | Sighandler_t handler; |
1979 | { |
1980 | return signal(signo, handler); |
1981 | } |
1982 | |
1983 | static int sig_trapped; |
1984 | |
1985 | static |
1986 | Signal_t |
1987 | sig_trap(signo) |
1988 | int signo; |
1989 | { |
1990 | sig_trapped++; |
1991 | } |
1992 | |
1993 | Sighandler_t |
1994 | rsignal_state(signo) |
1995 | int signo; |
1996 | { |
1997 | Sighandler_t oldsig; |
1998 | |
1999 | sig_trapped = 0; |
2000 | oldsig = signal(signo, sig_trap); |
2001 | signal(signo, oldsig); |
2002 | if (sig_trapped) |
2003 | kill(getpid(), signo); |
2004 | return oldsig; |
2005 | } |
2006 | |
2007 | int |
2008 | rsignal_save(signo, handler, save) |
2009 | int signo; |
2010 | Sighandler_t handler; |
2011 | Sigsave_t *save; |
2012 | { |
2013 | *save = signal(signo, handler); |
2014 | return (*save == SIG_ERR) ? -1 : 0; |
2015 | } |
2016 | |
2017 | int |
36477c24 |
2018 | rsignal_restore(signo, save) |
ff68c719 |
2019 | int signo; |
2020 | Sigsave_t *save; |
2021 | { |
2022 | return (signal(signo, *save) == SIG_ERR) ? -1 : 0; |
2023 | } |
2024 | |
2025 | #endif /* !HAS_SIGACTION */ |
2026 | |
5f05dabc |
2027 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
2028 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) |
79072805 |
2029 | I32 |
2030 | my_pclose(ptr) |
760ac839 |
2031 | PerlIO *ptr; |
a687059c |
2032 | { |
ff68c719 |
2033 | Sigsave_t hstat, istat, qstat; |
a687059c |
2034 | int status; |
a0d0e21e |
2035 | SV **svp; |
20188a90 |
2036 | int pid; |
03136e13 |
2037 | bool close_failed; |
2038 | int saved_errno; |
2039 | #ifdef VMS |
2040 | int saved_vaxc_errno; |
2041 | #endif |
a687059c |
2042 | |
760ac839 |
2043 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 |
2044 | pid = (int)SvIVX(*svp); |
a0d0e21e |
2045 | SvREFCNT_dec(*svp); |
2046 | *svp = &sv_undef; |
ddcf38b7 |
2047 | #ifdef OS2 |
2048 | if (pid == -1) { /* Opened by popen. */ |
2049 | return my_syspclose(ptr); |
2050 | } |
2051 | #endif |
03136e13 |
2052 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2053 | saved_errno = errno; |
2054 | #ifdef VMS |
2055 | saved_vaxc_errno = vaxc$errno; |
2056 | #endif |
2057 | } |
7c0587c8 |
2058 | #ifdef UTS |
2059 | if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
2060 | #endif |
ff68c719 |
2061 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2062 | rsignal_save(SIGINT, SIG_IGN, &istat); |
2063 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); |
748a9306 |
2064 | do { |
2065 | pid = wait4pid(pid, &status, 0); |
2066 | } while (pid == -1 && errno == EINTR); |
ff68c719 |
2067 | rsignal_restore(SIGHUP, &hstat); |
2068 | rsignal_restore(SIGINT, &istat); |
2069 | rsignal_restore(SIGQUIT, &qstat); |
03136e13 |
2070 | if (close_failed) { |
2071 | SETERRNO(saved_errno, saved_vaxc_errno); |
2072 | return -1; |
2073 | } |
2074 | return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status)); |
20188a90 |
2075 | } |
4633a7c4 |
2076 | #endif /* !DOSISH */ |
2077 | |
2078 | #if !defined(DOSISH) || defined(OS2) |
79072805 |
2079 | I32 |
20188a90 |
2080 | wait4pid(pid,statusp,flags) |
2081 | int pid; |
2082 | int *statusp; |
2083 | int flags; |
2084 | { |
79072805 |
2085 | SV *sv; |
2086 | SV** svp; |
fc36a67e |
2087 | char spid[TYPE_CHARS(int)]; |
20188a90 |
2088 | |
2089 | if (!pid) |
2090 | return -1; |
20188a90 |
2091 | if (pid > 0) { |
2092 | sprintf(spid, "%d", pid); |
79072805 |
2093 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
2094 | if (svp && *svp != &sv_undef) { |
463ee0b2 |
2095 | *statusp = SvIVX(*svp); |
748a9306 |
2096 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
2097 | return pid; |
2098 | } |
2099 | } |
2100 | else { |
79072805 |
2101 | HE *entry; |
20188a90 |
2102 | |
79072805 |
2103 | hv_iterinit(pidstatus); |
2104 | if (entry = hv_iternext(pidstatus)) { |
a0d0e21e |
2105 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 |
2106 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 |
2107 | *statusp = SvIVX(sv); |
20188a90 |
2108 | sprintf(spid, "%d", pid); |
748a9306 |
2109 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
2110 | return pid; |
2111 | } |
2112 | } |
79072805 |
2113 | #ifdef HAS_WAITPID |
367f3c24 |
2114 | # ifdef HAS_WAITPID_RUNTIME |
2115 | if (!HAS_WAITPID_RUNTIME) |
2116 | goto hard_way; |
2117 | # endif |
79072805 |
2118 | return waitpid(pid,statusp,flags); |
367f3c24 |
2119 | #endif |
2120 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) |
a0d0e21e |
2121 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
367f3c24 |
2122 | #endif |
2123 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) |
2124 | hard_way: |
a0d0e21e |
2125 | { |
2126 | I32 result; |
2127 | if (flags) |
2128 | croak("Can't do waitpid with flags"); |
2129 | else { |
2130 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) |
2131 | pidgone(result,*statusp); |
2132 | if (result < 0) |
2133 | *statusp = -1; |
2134 | } |
2135 | return result; |
a687059c |
2136 | } |
2137 | #endif |
a687059c |
2138 | } |
7c0587c8 |
2139 | #endif /* !DOSISH */ |
a687059c |
2140 | |
7c0587c8 |
2141 | void |
de3bb511 |
2142 | /*SUPPRESS 590*/ |
a687059c |
2143 | pidgone(pid,status) |
2144 | int pid; |
2145 | int status; |
2146 | { |
79072805 |
2147 | register SV *sv; |
fc36a67e |
2148 | char spid[TYPE_CHARS(int)]; |
a687059c |
2149 | |
20188a90 |
2150 | sprintf(spid, "%d", pid); |
79072805 |
2151 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e |
2152 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
2153 | SvIVX(sv) = status; |
20188a90 |
2154 | return; |
a687059c |
2155 | } |
2156 | |
55497cff |
2157 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 |
2158 | int pclose(); |
ddcf38b7 |
2159 | #ifdef HAS_FORK |
2160 | int /* Cannot prototype with I32 |
2161 | in os2ish.h. */ |
2162 | my_syspclose(ptr) |
2163 | #else |
79072805 |
2164 | I32 |
2165 | my_pclose(ptr) |
ddcf38b7 |
2166 | #endif |
760ac839 |
2167 | PerlIO *ptr; |
a687059c |
2168 | { |
760ac839 |
2169 | /* Needs work for PerlIO ! */ |
2170 | FILE *f = PerlIO_findFILE(ptr); |
2171 | I32 result = pclose(f); |
2172 | PerlIO_releaseFILE(ptr,f); |
2173 | return result; |
a687059c |
2174 | } |
7c0587c8 |
2175 | #endif |
9f68db38 |
2176 | |
2177 | void |
2178 | repeatcpy(to,from,len,count) |
2179 | register char *to; |
2180 | register char *from; |
79072805 |
2181 | I32 len; |
2182 | register I32 count; |
9f68db38 |
2183 | { |
79072805 |
2184 | register I32 todo; |
9f68db38 |
2185 | register char *frombase = from; |
2186 | |
2187 | if (len == 1) { |
2188 | todo = *from; |
2189 | while (count-- > 0) |
2190 | *to++ = todo; |
2191 | return; |
2192 | } |
2193 | while (count-- > 0) { |
2194 | for (todo = len; todo > 0; todo--) { |
2195 | *to++ = *from++; |
2196 | } |
2197 | from = frombase; |
2198 | } |
2199 | } |
0f85fab0 |
2200 | |
2201 | #ifndef CASTNEGFLOAT |
463ee0b2 |
2202 | U32 |
79072805 |
2203 | cast_ulong(f) |
0f85fab0 |
2204 | double f; |
2205 | { |
2206 | long along; |
2207 | |
27e2fb84 |
2208 | #if CASTFLAGS & 2 |
34de22dd |
2209 | # define BIGDOUBLE 2147483648.0 |
2210 | if (f >= BIGDOUBLE) |
2211 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; |
2212 | #endif |
0f85fab0 |
2213 | if (f >= 0.0) |
2214 | return (unsigned long)f; |
2215 | along = (long)f; |
2216 | return (unsigned long)along; |
2217 | } |
ed6116ce |
2218 | # undef BIGDOUBLE |
2219 | #endif |
2220 | |
2221 | #ifndef CASTI32 |
5d94fbed |
2222 | |
5d94fbed |
2223 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2224 | work with the system-supplied definition of ULONG_MAX. The |
2225 | comparison (f >= ULONG_MAX) always comes out true. It must be a |
2226 | problem with the compiler constant folding. |
2227 | |
2228 | In any case, this workaround should be fine on any two's complement |
2229 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your |
2230 | ccflags. |
2231 | --Andy Dougherty <doughera@lafcol.lafayette.edu> |
2232 | */ |
1eb770ff |
2233 | |
2234 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead |
2235 | of LONG_(MIN/MAX). |
2236 | -- Kenneth Albanowski <kjahds@kjahds.com> |
2237 | */ |
2238 | |
20cec16a |
2239 | #ifndef MY_UV_MAX |
2240 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) |
5d94fbed |
2241 | #endif |
2242 | |
ed6116ce |
2243 | I32 |
2244 | cast_i32(f) |
2245 | double f; |
2246 | { |
20cec16a |
2247 | if (f >= I32_MAX) |
2248 | return (I32) I32_MAX; |
2249 | if (f <= I32_MIN) |
2250 | return (I32) I32_MIN; |
ed6116ce |
2251 | return (I32) f; |
2252 | } |
a0d0e21e |
2253 | |
2254 | IV |
2255 | cast_iv(f) |
2256 | double f; |
2257 | { |
20cec16a |
2258 | if (f >= IV_MAX) |
2259 | return (IV) IV_MAX; |
2260 | if (f <= IV_MIN) |
2261 | return (IV) IV_MIN; |
a0d0e21e |
2262 | return (IV) f; |
2263 | } |
5d94fbed |
2264 | |
2265 | UV |
2266 | cast_uv(f) |
2267 | double f; |
2268 | { |
20cec16a |
2269 | if (f >= MY_UV_MAX) |
2270 | return (UV) MY_UV_MAX; |
5d94fbed |
2271 | return (UV) f; |
2272 | } |
2273 | |
0f85fab0 |
2274 | #endif |
62b28dd9 |
2275 | |
fe14fcc3 |
2276 | #ifndef HAS_RENAME |
79072805 |
2277 | I32 |
62b28dd9 |
2278 | same_dirent(a,b) |
2279 | char *a; |
2280 | char *b; |
2281 | { |
93a17b20 |
2282 | char *fa = strrchr(a,'/'); |
2283 | char *fb = strrchr(b,'/'); |
62b28dd9 |
2284 | struct stat tmpstatbuf1; |
2285 | struct stat tmpstatbuf2; |
46fc3d4c |
2286 | SV *tmpsv = sv_newmortal(); |
62b28dd9 |
2287 | |
2288 | if (fa) |
2289 | fa++; |
2290 | else |
2291 | fa = a; |
2292 | if (fb) |
2293 | fb++; |
2294 | else |
2295 | fb = b; |
2296 | if (strNE(a,b)) |
2297 | return FALSE; |
2298 | if (fa == a) |
46fc3d4c |
2299 | sv_setpv(tmpsv, "."); |
62b28dd9 |
2300 | else |
46fc3d4c |
2301 | sv_setpvn(tmpsv, a, fa - a); |
2302 | if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
62b28dd9 |
2303 | return FALSE; |
2304 | if (fb == b) |
46fc3d4c |
2305 | sv_setpv(tmpsv, "."); |
62b28dd9 |
2306 | else |
46fc3d4c |
2307 | sv_setpvn(tmpsv, b, fb - b); |
2308 | if (Stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
62b28dd9 |
2309 | return FALSE; |
2310 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && |
2311 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; |
2312 | } |
fe14fcc3 |
2313 | #endif /* !HAS_RENAME */ |
2314 | |
55497cff |
2315 | UV |
79072805 |
2316 | scan_oct(start, len, retlen) |
fe14fcc3 |
2317 | char *start; |
79072805 |
2318 | I32 len; |
2319 | I32 *retlen; |
fe14fcc3 |
2320 | { |
2321 | register char *s = start; |
55497cff |
2322 | register UV retval = 0; |
2323 | bool overflowed = FALSE; |
fe14fcc3 |
2324 | |
748a9306 |
2325 | while (len && *s >= '0' && *s <= '7') { |
55497cff |
2326 | register UV n = retval << 3; |
2327 | if (!overflowed && (n >> 3) != retval) { |
2328 | warn("Integer overflow in octal number"); |
2329 | overflowed = TRUE; |
2330 | } |
2331 | retval = n | (*s++ - '0'); |
748a9306 |
2332 | len--; |
fe14fcc3 |
2333 | } |
748a9306 |
2334 | if (dowarn && len && (*s == '8' || *s == '9')) |
2335 | warn("Illegal octal digit ignored"); |
fe14fcc3 |
2336 | *retlen = s - start; |
2337 | return retval; |
2338 | } |
2339 | |
71be2cbc |
2340 | UV |
79072805 |
2341 | scan_hex(start, len, retlen) |
fe14fcc3 |
2342 | char *start; |
79072805 |
2343 | I32 len; |
2344 | I32 *retlen; |
fe14fcc3 |
2345 | { |
2346 | register char *s = start; |
55497cff |
2347 | register UV retval = 0; |
2348 | bool overflowed = FALSE; |
fe14fcc3 |
2349 | char *tmp; |
2350 | |
93a17b20 |
2351 | while (len-- && *s && (tmp = strchr(hexdigit, *s))) { |
55497cff |
2352 | register UV n = retval << 4; |
2353 | if (!overflowed && (n >> 4) != retval) { |
2354 | warn("Integer overflow in hex number"); |
2355 | overflowed = TRUE; |
2356 | } |
2357 | retval = n | (tmp - hexdigit) & 15; |
fe14fcc3 |
2358 | s++; |
2359 | } |
2360 | *retlen = s - start; |
2361 | return retval; |
2362 | } |
760ac839 |
2363 | |
11343788 |
2364 | #ifdef USE_THREADS |
12ca11f6 |
2365 | #ifdef FAKE_THREADS |
2366 | /* Very simplistic scheduler for now */ |
2367 | void |
2368 | schedule(void) |
2369 | { |
c7848ba1 |
2370 | thr = thr->i.next_run; |
12ca11f6 |
2371 | } |
2372 | |
2373 | void |
2374 | perl_cond_init(cp) |
2375 | perl_cond *cp; |
2376 | { |
2377 | *cp = 0; |
2378 | } |
2379 | |
2380 | void |
2381 | perl_cond_signal(cp) |
2382 | perl_cond *cp; |
2383 | { |
2384 | perl_thread t; |
2385 | perl_cond cond = *cp; |
2386 | |
2387 | if (!cond) |
2388 | return; |
2389 | t = cond->thread; |
2390 | /* Insert t in the runnable queue just ahead of us */ |
c7848ba1 |
2391 | t->i.next_run = thr->i.next_run; |
2392 | thr->i.next_run->i.prev_run = t; |
2393 | t->i.prev_run = thr; |
2394 | thr->i.next_run = t; |
2395 | thr->i.wait_queue = 0; |
12ca11f6 |
2396 | /* Remove from the wait queue */ |
2397 | *cp = cond->next; |
2398 | Safefree(cond); |
2399 | } |
2400 | |
2401 | void |
2402 | perl_cond_broadcast(cp) |
2403 | perl_cond *cp; |
2404 | { |
2405 | perl_thread t; |
2406 | perl_cond cond, cond_next; |
2407 | |
2408 | for (cond = *cp; cond; cond = cond_next) { |
2409 | t = cond->thread; |
2410 | /* Insert t in the runnable queue just ahead of us */ |
c7848ba1 |
2411 | t->i.next_run = thr->i.next_run; |
2412 | thr->i.next_run->i.prev_run = t; |
2413 | t->i.prev_run = thr; |
2414 | thr->i.next_run = t; |
2415 | thr->i.wait_queue = 0; |
12ca11f6 |
2416 | /* Remove from the wait queue */ |
2417 | cond_next = cond->next; |
2418 | Safefree(cond); |
2419 | } |
2420 | *cp = 0; |
2421 | } |
2422 | |
2423 | void |
2424 | perl_cond_wait(cp) |
2425 | perl_cond *cp; |
2426 | { |
2427 | perl_cond cond; |
2428 | |
c7848ba1 |
2429 | if (thr->i.next_run == thr) |
12ca11f6 |
2430 | croak("panic: perl_cond_wait called by last runnable thread"); |
2431 | |
0f15f207 |
2432 | New(666, cond, 1, struct perl_wait_queue); |
12ca11f6 |
2433 | cond->thread = thr; |
2434 | cond->next = *cp; |
2435 | *cp = cond; |
c7848ba1 |
2436 | thr->i.wait_queue = cond; |
12ca11f6 |
2437 | /* Remove ourselves from runnable queue */ |
c7848ba1 |
2438 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
2439 | thr->i.prev_run->i.next_run = thr->i.next_run; |
12ca11f6 |
2440 | } |
2441 | #endif /* FAKE_THREADS */ |
2442 | |
11343788 |
2443 | #ifdef OLD_PTHREADS_API |
2444 | struct thread * |
2445 | getTHR _((void)) |
2446 | { |
2447 | pthread_addr_t t; |
2448 | |
2449 | if (pthread_getspecific(thr_key, &t)) |
2450 | croak("panic: pthread_getspecific"); |
2451 | return (struct thread *) t; |
2452 | } |
2453 | #endif /* OLD_PTHREADS_API */ |
f93b4edd |
2454 | |
2455 | MAGIC * |
2456 | condpair_magic(sv) |
2457 | SV *sv; |
2458 | { |
2459 | MAGIC *mg; |
2460 | |
2461 | SvUPGRADE(sv, SVt_PVMG); |
2462 | mg = mg_find(sv, 'm'); |
2463 | if (!mg) { |
2464 | condpair_t *cp; |
2465 | |
2466 | New(53, cp, 1, condpair_t); |
2467 | MUTEX_INIT(&cp->mutex); |
2468 | COND_INIT(&cp->owner_cond); |
2469 | COND_INIT(&cp->cond); |
2470 | cp->owner = 0; |
2471 | MUTEX_LOCK(&sv_mutex); |
2472 | mg = mg_find(sv, 'm'); |
2473 | if (mg) { |
2474 | /* someone else beat us to initialising it */ |
2475 | MUTEX_UNLOCK(&sv_mutex); |
2476 | MUTEX_DESTROY(&cp->mutex); |
2477 | COND_DESTROY(&cp->owner_cond); |
2478 | COND_DESTROY(&cp->cond); |
2479 | Safefree(cp); |
2480 | } |
2481 | else { |
2482 | sv_magic(sv, Nullsv, 'm', 0, 0); |
2483 | mg = SvMAGIC(sv); |
2484 | mg->mg_ptr = (char *)cp; |
2485 | mg->mg_len = sizeof(cp); |
2486 | MUTEX_UNLOCK(&sv_mutex); |
bc1f4c86 |
2487 | DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
2488 | "%p: condpair_magic %p\n", thr, sv));) |
f93b4edd |
2489 | } |
2490 | } |
2491 | return mg; |
2492 | } |
a863c7d1 |
2493 | |
2494 | /* |
199100c8 |
2495 | * Make a new perl thread structure using t as a prototype. Some of the |
2496 | * fields for the new thread are copied from the prototype thread, t, |
2497 | * so t should not be running in perl at the time this function is |
2498 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the |
2499 | * thread calling new_struct_thread) clearly satisfies this constraint. |
a863c7d1 |
2500 | */ |
2501 | struct thread * |
2502 | new_struct_thread(t) |
2503 | struct thread *t; |
2504 | { |
2505 | struct thread *thr; |
a863c7d1 |
2506 | SV *sv; |
199100c8 |
2507 | SV **svp; |
2508 | I32 i; |
2509 | |
2510 | sv = newSVpv("", 0); |
2511 | SvGROW(sv, sizeof(struct thread) + 1); |
2512 | SvCUR_set(sv, sizeof(struct thread)); |
2513 | thr = (Thread) SvPVX(sv); |
199100c8 |
2514 | /* debug */ |
2515 | memset(thr, 0xab, sizeof(struct thread)); |
2516 | markstack = 0; |
2517 | scopestack = 0; |
2518 | savestack = 0; |
2519 | retstack = 0; |
2520 | dirty = 0; |
2521 | localizing = 0; |
2522 | /* end debug */ |
2523 | |
2524 | thr->oursv = sv; |
d55594ae |
2525 | init_stacks(ARGS); |
a863c7d1 |
2526 | |
a863c7d1 |
2527 | curcop = &compiling; |
199100c8 |
2528 | thr->cvcache = newHV(); |
554b3eca |
2529 | thr->magicals = newAV(); |
a863c7d1 |
2530 | thr->specific = newAV(); |
2531 | thr->flags = THRf_R_JOINABLE; |
2532 | MUTEX_INIT(&thr->mutex); |
199100c8 |
2533 | |
2534 | curcop = t->Tcurcop; /* XXX As good a guess as any? */ |
2535 | defstash = t->Tdefstash; /* XXX maybe these should */ |
2536 | curstash = t->Tcurstash; /* always be set to main? */ |
d55594ae |
2537 | |
2538 | |
2539 | /* top_env needs to be non-zero. It points to an area |
2540 | in which longjmp() stuff is stored, as C callstack |
2541 | info there at least is thread specific this has to |
2542 | be per-thread. Otherwise a 'die' in a thread gives |
2543 | that thread the C stack of last thread to do an eval {}! |
2544 | See comments in scope.h |
2545 | Initialize top entry (as in perl.c for main thread) |
2546 | */ |
2547 | start_env.je_prev = NULL; |
2548 | start_env.je_ret = -1; |
2549 | start_env.je_mustcatch = TRUE; |
2550 | top_env = &start_env; |
2551 | |
2552 | runlevel = 0; /* Let entering sub do increment */ |
2553 | |
199100c8 |
2554 | in_eval = FALSE; |
2555 | restartop = 0; |
2556 | |
2557 | tainted = t->Ttainted; |
2558 | curpm = t->Tcurpm; /* XXX No PMOP ref count */ |
2559 | nrs = newSVsv(t->Tnrs); |
2560 | rs = newSVsv(t->Trs); |
2561 | last_in_gv = (GV*)SvREFCNT_inc(t->Tlast_in_gv); |
2562 | ofslen = t->Tofslen; |
2563 | ofs = savepvn(t->Tofs, ofslen); |
2564 | defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); |
2565 | chopset = t->Tchopset; |
2566 | formtarget = newSVsv(t->Tformtarget); |
2567 | bodytarget = newSVsv(t->Tbodytarget); |
2568 | toptarget = newSVsv(t->Ttoptarget); |
2569 | |
2570 | /* Initialise all per-thread magicals that the template thread used */ |
2571 | svp = AvARRAY(t->magicals); |
2572 | for (i = 0; i <= AvFILL(t->magicals); i++, svp++) { |
2573 | if (*svp && *svp != &sv_undef) { |
2574 | SV *sv = newSVsv(*svp); |
2575 | av_store(thr->magicals, i, sv); |
2576 | sv_magic(sv, 0, 0, &per_thread_magicals[i], 1); |
2577 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
d55594ae |
2578 | "new_struct_thread: copied magical %d %p->%p\n",i, |
2579 | t, thr)); |
199100c8 |
2580 | } |
2581 | } |
2582 | |
a863c7d1 |
2583 | MUTEX_LOCK(&threads_mutex); |
2584 | nthreads++; |
199100c8 |
2585 | thr->tid = ++threadnum; |
2586 | thr->next = t->next; |
2587 | thr->prev = t; |
2588 | t->next = thr; |
2589 | thr->next->prev = thr; |
a863c7d1 |
2590 | MUTEX_UNLOCK(&threads_mutex); |
2591 | |
d55594ae |
2592 | /* |
2593 | * This is highly suspect - new_struct_thread is executed |
2594 | * by creating thread so pthread_self() or equivalent |
2595 | * is parent thread not the child. |
2596 | * In particular this should _NOT_ change dTHR value of calling thread. |
2597 | * |
2598 | * But a good place to have a 'hook' for filling in port-private |
2599 | * fields of thr. |
2600 | */ |
2601 | #ifdef INIT_THREAD_INTERN |
2602 | INIT_THREAD_INTERN(thr); |
a863c7d1 |
2603 | #else |
2604 | thr->self = pthread_self(); |
2605 | #endif /* HAVE_THREAD_INTERN */ |
a863c7d1 |
2606 | return thr; |
2607 | } |
11343788 |
2608 | #endif /* USE_THREADS */ |
760ac839 |
2609 | |
2610 | #ifdef HUGE_VAL |
2611 | /* |
2612 | * This hack is to force load of "huge" support from libm.a |
2613 | * So it is in perl for (say) POSIX to use. |
2614 | * Needed for SunOS with Sun's 'acc' for example. |
2615 | */ |
2616 | double |
2617 | Perl_huge() |
2618 | { |
2619 | return HUGE_VAL; |
2620 | } |
2621 | #endif |