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 | |
55497cff |
59 | #ifndef MYMALLOC |
de3bb511 |
60 | |
8d063cd8 |
61 | /* paranoid version of malloc */ |
62 | |
a687059c |
63 | /* NOTE: Do not call the next three routines directly. Use the macros |
64 | * in handy.h, so that we can easily redefine everything to do tracking of |
65 | * allocated hunks back to the original New to track down any memory leaks. |
20cec16a |
66 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c |
67 | */ |
68 | |
bd4080b3 |
69 | Malloc_t |
8d063cd8 |
70 | safemalloc(size) |
71 | MEM_SIZE size; |
72 | { |
bd4080b3 |
73 | Malloc_t ptr; |
55497cff |
74 | #ifdef HAS_64K_LIMIT |
62b28dd9 |
75 | if (size > 0xffff) { |
760ac839 |
76 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
79072805 |
77 | my_exit(1); |
62b28dd9 |
78 | } |
55497cff |
79 | #endif /* HAS_64K_LIMIT */ |
34de22dd |
80 | #ifdef DEBUGGING |
81 | if ((long)size < 0) |
463ee0b2 |
82 | croak("panic: malloc"); |
34de22dd |
83 | #endif |
8d063cd8 |
84 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 |
85 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
86 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
79072805 |
87 | #else |
760ac839 |
88 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
8d063cd8 |
89 | #endif |
90 | if (ptr != Nullch) |
91 | return ptr; |
7c0587c8 |
92 | else if (nomemok) |
93 | return Nullch; |
8d063cd8 |
94 | else { |
760ac839 |
95 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 |
96 | my_exit(1); |
8d063cd8 |
97 | } |
98 | /*NOTREACHED*/ |
99 | } |
100 | |
101 | /* paranoid version of realloc */ |
102 | |
bd4080b3 |
103 | Malloc_t |
8d063cd8 |
104 | saferealloc(where,size) |
bd4080b3 |
105 | Malloc_t where; |
8d063cd8 |
106 | MEM_SIZE size; |
107 | { |
bd4080b3 |
108 | Malloc_t ptr; |
ecfc5424 |
109 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
bd4080b3 |
110 | Malloc_t realloc(); |
ecfc5424 |
111 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 |
112 | |
55497cff |
113 | #ifdef HAS_64K_LIMIT |
5f05dabc |
114 | if (size > 0xffff) { |
115 | PerlIO_printf(PerlIO_stderr(), |
116 | "Reallocation too large: %lx\n", size) FLUSH; |
117 | my_exit(1); |
118 | } |
55497cff |
119 | #endif /* HAS_64K_LIMIT */ |
378cc40b |
120 | if (!where) |
463ee0b2 |
121 | croak("Null realloc"); |
34de22dd |
122 | #ifdef DEBUGGING |
123 | if ((long)size < 0) |
463ee0b2 |
124 | croak("panic: realloc"); |
34de22dd |
125 | #endif |
8d063cd8 |
126 | ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ |
79072805 |
127 | |
128 | #if !(defined(I286) || defined(atarist)) |
129 | DEBUG_m( { |
760ac839 |
130 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++); |
131 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
132 | } ) |
133 | #else |
134 | DEBUG_m( { |
760ac839 |
135 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++); |
136 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
137 | } ) |
8d063cd8 |
138 | #endif |
79072805 |
139 | |
8d063cd8 |
140 | if (ptr != Nullch) |
141 | return ptr; |
7c0587c8 |
142 | else if (nomemok) |
143 | return Nullch; |
8d063cd8 |
144 | else { |
760ac839 |
145 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 |
146 | my_exit(1); |
8d063cd8 |
147 | } |
148 | /*NOTREACHED*/ |
149 | } |
150 | |
151 | /* safe version of free */ |
152 | |
54310121 |
153 | Free_t |
8d063cd8 |
154 | safefree(where) |
bd4080b3 |
155 | Malloc_t where; |
8d063cd8 |
156 | { |
79072805 |
157 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
158 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++)); |
79072805 |
159 | #else |
760ac839 |
160 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++)); |
8d063cd8 |
161 | #endif |
378cc40b |
162 | if (where) { |
de3bb511 |
163 | /*SUPPRESS 701*/ |
378cc40b |
164 | free(where); |
165 | } |
8d063cd8 |
166 | } |
167 | |
1050c9ca |
168 | /* safe version of calloc */ |
169 | |
bd4080b3 |
170 | Malloc_t |
1050c9ca |
171 | safecalloc(count, size) |
172 | MEM_SIZE count; |
173 | MEM_SIZE size; |
174 | { |
bd4080b3 |
175 | Malloc_t ptr; |
1050c9ca |
176 | |
55497cff |
177 | #ifdef HAS_64K_LIMIT |
5f05dabc |
178 | if (size * count > 0xffff) { |
179 | PerlIO_printf(PerlIO_stderr(), |
180 | "Allocation too large: %lx\n", size * count) FLUSH; |
181 | my_exit(1); |
182 | } |
55497cff |
183 | #endif /* HAS_64K_LIMIT */ |
1050c9ca |
184 | #ifdef DEBUGGING |
185 | if ((long)size < 0 || (long)count < 0) |
186 | croak("panic: calloc"); |
187 | #endif |
188 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
189 | DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
190 | #else |
760ac839 |
191 | DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
192 | #endif |
193 | size *= count; |
194 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
195 | if (ptr != Nullch) { |
196 | memset((void*)ptr, 0, size); |
197 | return ptr; |
198 | } |
199 | else if (nomemok) |
200 | return Nullch; |
201 | else { |
760ac839 |
202 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
1050c9ca |
203 | my_exit(1); |
204 | } |
205 | /*NOTREACHED*/ |
206 | } |
207 | |
55497cff |
208 | #endif /* !MYMALLOC */ |
de3bb511 |
209 | |
a687059c |
210 | #ifdef LEAKTEST |
211 | |
212 | #define ALIGN sizeof(long) |
8d063cd8 |
213 | |
bd4080b3 |
214 | Malloc_t |
a687059c |
215 | safexmalloc(x,size) |
79072805 |
216 | I32 x; |
a687059c |
217 | MEM_SIZE size; |
8d063cd8 |
218 | { |
bd4080b3 |
219 | register Malloc_t where; |
8d063cd8 |
220 | |
a687059c |
221 | where = safemalloc(size + ALIGN); |
222 | xcount[x]++; |
223 | where[0] = x % 100; |
224 | where[1] = x / 100; |
225 | return where + ALIGN; |
8d063cd8 |
226 | } |
8d063cd8 |
227 | |
bd4080b3 |
228 | Malloc_t |
a687059c |
229 | safexrealloc(where,size) |
bd4080b3 |
230 | Malloc_t where; |
a687059c |
231 | MEM_SIZE size; |
232 | { |
bd4080b3 |
233 | register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN); |
a0d0e21e |
234 | return new + ALIGN; |
a687059c |
235 | } |
236 | |
237 | void |
238 | safexfree(where) |
bd4080b3 |
239 | Malloc_t where; |
a687059c |
240 | { |
79072805 |
241 | I32 x; |
a687059c |
242 | |
243 | if (!where) |
244 | return; |
245 | where -= ALIGN; |
246 | x = where[0] + 100 * where[1]; |
247 | xcount[x]--; |
248 | safefree(where); |
249 | } |
250 | |
bd4080b3 |
251 | Malloc_t |
1050c9ca |
252 | safexcalloc(x,count,size) |
253 | I32 x; |
254 | MEM_SIZE count; |
255 | MEM_SIZE size; |
256 | { |
bd4080b3 |
257 | register Malloc_t where; |
1050c9ca |
258 | |
259 | where = safexmalloc(x, size * count + ALIGN); |
260 | xcount[x]++; |
261 | memset((void*)where + ALIGN, 0, size * count); |
262 | where[0] = x % 100; |
263 | where[1] = x / 100; |
264 | return where + ALIGN; |
265 | } |
266 | |
7c0587c8 |
267 | static void |
a687059c |
268 | xstat() |
8d063cd8 |
269 | { |
79072805 |
270 | register I32 i; |
8d063cd8 |
271 | |
a687059c |
272 | for (i = 0; i < MAXXCOUNT; i++) { |
de3bb511 |
273 | if (xcount[i] > lastxcount[i]) { |
760ac839 |
274 | PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]); |
a687059c |
275 | lastxcount[i] = xcount[i]; |
8d063cd8 |
276 | } |
277 | } |
8d063cd8 |
278 | } |
a687059c |
279 | |
280 | #endif /* LEAKTEST */ |
8d063cd8 |
281 | |
282 | /* copy a string up to some (non-backslashed) delimiter, if any */ |
283 | |
284 | char * |
a687059c |
285 | cpytill(to,from,fromend,delim,retlen) |
62b28dd9 |
286 | register char *to; |
287 | register char *from; |
a687059c |
288 | register char *fromend; |
a0d0e21e |
289 | register int delim; |
79072805 |
290 | I32 *retlen; |
8d063cd8 |
291 | { |
a687059c |
292 | char *origto = to; |
293 | |
294 | for (; from < fromend; from++,to++) { |
378cc40b |
295 | if (*from == '\\') { |
296 | if (from[1] == delim) |
297 | from++; |
298 | else if (from[1] == '\\') |
299 | *to++ = *from++; |
300 | } |
8d063cd8 |
301 | else if (*from == delim) |
302 | break; |
303 | *to = *from; |
304 | } |
305 | *to = '\0'; |
a687059c |
306 | *retlen = to - origto; |
8d063cd8 |
307 | return from; |
308 | } |
309 | |
310 | /* return ptr to little string in big string, NULL if not found */ |
378cc40b |
311 | /* This routine was donated by Corey Satten. */ |
8d063cd8 |
312 | |
313 | char * |
314 | instr(big, little) |
378cc40b |
315 | register char *big; |
316 | register char *little; |
317 | { |
318 | register char *s, *x; |
79072805 |
319 | register I32 first; |
378cc40b |
320 | |
a687059c |
321 | if (!little) |
322 | return big; |
323 | first = *little++; |
378cc40b |
324 | if (!first) |
325 | return big; |
326 | while (*big) { |
327 | if (*big++ != first) |
328 | continue; |
329 | for (x=big,s=little; *s; /**/ ) { |
330 | if (!*x) |
331 | return Nullch; |
332 | if (*s++ != *x++) { |
333 | s--; |
334 | break; |
335 | } |
336 | } |
337 | if (!*s) |
338 | return big-1; |
339 | } |
340 | return Nullch; |
341 | } |
8d063cd8 |
342 | |
a687059c |
343 | /* same as instr but allow embedded nulls */ |
344 | |
345 | char * |
346 | ninstr(big, bigend, little, lend) |
347 | register char *big; |
348 | register char *bigend; |
349 | char *little; |
350 | char *lend; |
8d063cd8 |
351 | { |
a687059c |
352 | register char *s, *x; |
79072805 |
353 | register I32 first = *little; |
a687059c |
354 | register char *littleend = lend; |
378cc40b |
355 | |
a0d0e21e |
356 | if (!first && little >= littleend) |
a687059c |
357 | return big; |
de3bb511 |
358 | if (bigend - big < littleend - little) |
359 | return Nullch; |
a687059c |
360 | bigend -= littleend - little++; |
361 | while (big <= bigend) { |
362 | if (*big++ != first) |
363 | continue; |
364 | for (x=big,s=little; s < littleend; /**/ ) { |
365 | if (*s++ != *x++) { |
366 | s--; |
367 | break; |
368 | } |
369 | } |
370 | if (s >= littleend) |
371 | return big-1; |
378cc40b |
372 | } |
a687059c |
373 | return Nullch; |
374 | } |
375 | |
376 | /* reverse of the above--find last substring */ |
377 | |
378 | char * |
379 | rninstr(big, bigend, little, lend) |
380 | register char *big; |
381 | char *bigend; |
382 | char *little; |
383 | char *lend; |
384 | { |
385 | register char *bigbeg; |
386 | register char *s, *x; |
79072805 |
387 | register I32 first = *little; |
a687059c |
388 | register char *littleend = lend; |
389 | |
a0d0e21e |
390 | if (!first && little >= littleend) |
a687059c |
391 | return bigend; |
392 | bigbeg = big; |
393 | big = bigend - (littleend - little++); |
394 | while (big >= bigbeg) { |
395 | if (*big-- != first) |
396 | continue; |
397 | for (x=big+2,s=little; s < littleend; /**/ ) { |
398 | if (*s++ != *x++) { |
399 | s--; |
400 | break; |
401 | } |
402 | } |
403 | if (s >= littleend) |
404 | return big+1; |
378cc40b |
405 | } |
a687059c |
406 | return Nullch; |
378cc40b |
407 | } |
a687059c |
408 | |
bbce6d69 |
409 | /* |
410 | * Set up for a new ctype locale. |
411 | */ |
55497cff |
412 | void |
bbce6d69 |
413 | perl_new_ctype(newctype) |
414 | char *newctype; |
ef7eada9 |
415 | { |
36477c24 |
416 | #ifdef USE_LOCALE_CTYPE |
417 | |
bbce6d69 |
418 | int i; |
ef7eada9 |
419 | |
bbce6d69 |
420 | for (i = 0; i < 256; i++) { |
421 | if (isUPPER_LC(i)) |
422 | fold_locale[i] = toLOWER_LC(i); |
423 | else if (isLOWER_LC(i)) |
424 | fold_locale[i] = toUPPER_LC(i); |
425 | else |
426 | fold_locale[i] = i; |
427 | } |
bbce6d69 |
428 | |
36477c24 |
429 | #endif /* USE_LOCALE_CTYPE */ |
430 | } |
bbce6d69 |
431 | |
432 | /* |
433 | * Set up for a new collation locale. |
434 | */ |
435 | void |
436 | perl_new_collate(newcoll) |
437 | char *newcoll; |
438 | { |
36477c24 |
439 | #ifdef USE_LOCALE_COLLATE |
440 | |
bbce6d69 |
441 | if (! newcoll) { |
442 | if (collation_name) { |
443 | ++collation_ix; |
444 | Safefree(collation_name); |
445 | collation_name = NULL; |
446 | collation_standard = TRUE; |
bbce6d69 |
447 | collxfrm_base = 0; |
448 | collxfrm_mult = 2; |
bbce6d69 |
449 | } |
450 | return; |
451 | } |
452 | |
453 | if (! collation_name || strNE(collation_name, newcoll)) { |
454 | ++collation_ix; |
455 | Safefree(collation_name); |
456 | collation_name = savepv(newcoll); |
ff68c719 |
457 | collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); |
bbce6d69 |
458 | |
bbce6d69 |
459 | { |
460 | /* 2: at most so many chars ('a', 'b'). */ |
461 | /* 50: surely no system expands a char more. */ |
462 | #define XFRMBUFSIZE (2 * 50) |
463 | char xbuf[XFRMBUFSIZE]; |
464 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); |
465 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); |
466 | SSize_t mult = fb - fa; |
467 | if (mult < 1) |
468 | croak("strxfrm() gets absurd"); |
469 | collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
470 | collxfrm_mult = mult; |
471 | } |
bbce6d69 |
472 | } |
bbce6d69 |
473 | |
36477c24 |
474 | #endif /* USE_LOCALE_COLLATE */ |
475 | } |
bbce6d69 |
476 | |
477 | /* |
478 | * Set up for a new numeric locale. |
479 | */ |
480 | void |
481 | perl_new_numeric(newnum) |
482 | char *newnum; |
483 | { |
36477c24 |
484 | #ifdef USE_LOCALE_NUMERIC |
485 | |
bbce6d69 |
486 | if (! newnum) { |
487 | if (numeric_name) { |
488 | Safefree(numeric_name); |
489 | numeric_name = NULL; |
490 | numeric_standard = TRUE; |
491 | numeric_local = TRUE; |
492 | } |
493 | return; |
494 | } |
495 | |
496 | if (! numeric_name || strNE(numeric_name, newnum)) { |
497 | Safefree(numeric_name); |
498 | numeric_name = savepv(newnum); |
ff68c719 |
499 | numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
bbce6d69 |
500 | numeric_local = TRUE; |
501 | } |
36477c24 |
502 | |
503 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
504 | } |
505 | |
506 | void |
36477c24 |
507 | perl_set_numeric_standard() |
bbce6d69 |
508 | { |
5f05dabc |
509 | #ifdef USE_LOCALE_NUMERIC |
510 | |
bbce6d69 |
511 | if (! numeric_standard) { |
512 | setlocale(LC_NUMERIC, "C"); |
513 | numeric_standard = TRUE; |
514 | numeric_local = FALSE; |
515 | } |
5f05dabc |
516 | |
517 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
518 | } |
519 | |
520 | void |
36477c24 |
521 | perl_set_numeric_local() |
bbce6d69 |
522 | { |
5f05dabc |
523 | #ifdef USE_LOCALE_NUMERIC |
524 | |
bbce6d69 |
525 | if (! numeric_local) { |
526 | setlocale(LC_NUMERIC, numeric_name); |
527 | numeric_standard = FALSE; |
528 | numeric_local = TRUE; |
529 | } |
bbce6d69 |
530 | |
36477c24 |
531 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
532 | } |
36477c24 |
533 | |
bbce6d69 |
534 | |
36477c24 |
535 | /* |
536 | * Initialize locale awareness. |
537 | */ |
f0c5b223 |
538 | int |
1050c9ca |
539 | perl_init_i18nl10n(printwarn) |
f0c5b223 |
540 | int printwarn; |
541 | { |
542 | int ok = 1; |
543 | /* returns |
544 | * 1 = set ok or not applicable, |
545 | * 0 = fallback to C locale, |
546 | * -1 = fallback to C locale failed |
547 | */ |
bbce6d69 |
548 | |
36477c24 |
549 | #ifdef USE_LOCALE |
bbce6d69 |
550 | |
36477c24 |
551 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
552 | char *curctype = NULL; |
36477c24 |
553 | #endif /* USE_LOCALE_CTYPE */ |
554 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
555 | char *curcoll = NULL; |
36477c24 |
556 | #endif /* USE_LOCALE_COLLATE */ |
557 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
558 | char *curnum = NULL; |
36477c24 |
559 | #endif /* USE_LOCALE_NUMERIC */ |
02b32252 |
560 | char *lc_all = getenv("LC_ALL"); |
5f05dabc |
561 | char *lang = getenv("LANG"); |
bbce6d69 |
562 | bool setlocale_failure = FALSE; |
f0c5b223 |
563 | |
02b32252 |
564 | #ifdef LOCALE_ENVIRON_REQUIRED |
565 | |
566 | /* |
567 | * Ultrix setlocale(..., "") fails if there are no environment |
568 | * variables from which to get a locale name. |
569 | */ |
570 | |
571 | bool done = FALSE; |
572 | |
573 | #ifdef LC_ALL |
574 | if (lang) { |
575 | if (setlocale(LC_ALL, "")) |
576 | done = TRUE; |
577 | else |
578 | setlocale_failure = TRUE; |
579 | } |
580 | if (!setlocale_failure) |
581 | #endif /* LC_ALL */ |
582 | { |
583 | #ifdef USE_LOCALE_CTYPE |
584 | if (! (curctype = setlocale(LC_CTYPE, |
585 | (!done && (lang || getenv("LC_CTYPE"))) |
586 | ? "" : Nullch))) |
587 | setlocale_failure = TRUE; |
588 | #endif /* USE_LOCALE_CTYPE */ |
589 | #ifdef USE_LOCALE_COLLATE |
590 | if (! (curcoll = setlocale(LC_COLLATE, |
591 | (!done && (lang || getenv("LC_COLLATE"))) |
592 | ? "" : Nullch))) |
593 | setlocale_failure = TRUE; |
594 | #endif /* USE_LOCALE_COLLATE */ |
595 | #ifdef USE_LOCALE_NUMERIC |
596 | if (! (curnum = setlocale(LC_NUMERIC, |
597 | (!done && (lang || getenv("LC_NUMERIC"))) |
598 | ? "" : Nullch))) |
599 | setlocale_failure = TRUE; |
600 | #endif /* USE_LOCALE_NUMERIC */ |
601 | } |
602 | |
603 | #else /* !LOCALE_ENVIRON_REQUIRED */ |
604 | |
bbce6d69 |
605 | #ifdef LC_ALL |
5f05dabc |
606 | |
bbce6d69 |
607 | if (! setlocale(LC_ALL, "")) |
608 | setlocale_failure = TRUE; |
5f05dabc |
609 | else { |
610 | #ifdef USE_LOCALE_CTYPE |
611 | curctype = setlocale(LC_CTYPE, Nullch); |
612 | #endif /* USE_LOCALE_CTYPE */ |
613 | #ifdef USE_LOCALE_COLLATE |
614 | curcoll = setlocale(LC_COLLATE, Nullch); |
615 | #endif /* USE_LOCALE_COLLATE */ |
616 | #ifdef USE_LOCALE_NUMERIC |
617 | curnum = setlocale(LC_NUMERIC, Nullch); |
618 | #endif /* USE_LOCALE_NUMERIC */ |
619 | } |
620 | |
621 | #else /* !LC_ALL */ |
bbce6d69 |
622 | |
36477c24 |
623 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
624 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
bbce6d69 |
625 | setlocale_failure = TRUE; |
36477c24 |
626 | #endif /* USE_LOCALE_CTYPE */ |
627 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
628 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
bbce6d69 |
629 | setlocale_failure = TRUE; |
36477c24 |
630 | #endif /* USE_LOCALE_COLLATE */ |
631 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
632 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
bbce6d69 |
633 | setlocale_failure = TRUE; |
36477c24 |
634 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
635 | |
5f05dabc |
636 | #endif /* LC_ALL */ |
637 | |
02b32252 |
638 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
639 | |
5f05dabc |
640 | if (setlocale_failure) { |
641 | char *p; |
642 | bool locwarn = (printwarn > 1 || |
643 | printwarn && |
644 | (!(p = getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a |
645 | |
5f05dabc |
646 | if (locwarn) { |
647 | #ifdef LC_ALL |
648 | |
649 | PerlIO_printf(PerlIO_stderr(), |
650 | "perl: warning: Setting locale failed.\n"); |
651 | |
652 | #else /* !LC_ALL */ |
653 | |
ef7eada9 |
654 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
655 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 |
656 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
657 | if (! curctype) |
5f05dabc |
658 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 |
659 | #endif /* USE_LOCALE_CTYPE */ |
660 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
661 | if (! curcoll) |
5f05dabc |
662 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 |
663 | #endif /* USE_LOCALE_COLLATE */ |
664 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
665 | if (! curnum) |
5f05dabc |
666 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 |
667 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
668 | PerlIO_printf(PerlIO_stderr(), "\n"); |
669 | |
5f05dabc |
670 | #endif /* LC_ALL */ |
671 | |
760ac839 |
672 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
673 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 |
674 | |
675 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
676 | "\tLC_ALL = %c%s%c,\n", |
677 | lc_all ? '"' : '(', |
678 | lc_all ? lc_all : "unset", |
679 | lc_all ? '"' : ')'); |
5f05dabc |
680 | |
681 | { |
682 | char **e; |
683 | for (e = environ; *e; e++) { |
684 | if (strnEQ(*e, "LC_", 3) |
685 | && strnNE(*e, "LC_ALL=", 7) |
686 | && (p = strchr(*e, '='))) |
687 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", |
688 | (p - *e), *e, p + 1); |
689 | } |
690 | } |
691 | |
ef7eada9 |
692 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
693 | "\tLANG = %c%s%c\n", |
5f05dabc |
694 | lang ? '"' : '(', |
bbce6d69 |
695 | lang ? lang : "unset", |
696 | lang ? '"' : ')'); |
ef7eada9 |
697 | |
bbce6d69 |
698 | PerlIO_printf(PerlIO_stderr(), |
699 | " are supported and installed on your system.\n"); |
5f05dabc |
700 | } |
ef7eada9 |
701 | |
5f05dabc |
702 | #ifdef LC_ALL |
703 | |
704 | if (setlocale(LC_ALL, "C")) { |
705 | if (locwarn) |
706 | PerlIO_printf(PerlIO_stderr(), |
707 | "perl: warning: Falling back to the standard locale (\"C\").\n"); |
bbce6d69 |
708 | ok = 0; |
ef7eada9 |
709 | } |
5f05dabc |
710 | else { |
711 | if (locwarn) |
712 | PerlIO_printf(PerlIO_stderr(), |
713 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); |
714 | ok = -1; |
715 | } |
bbce6d69 |
716 | |
5f05dabc |
717 | #else /* ! LC_ALL */ |
718 | |
719 | if (0 |
36477c24 |
720 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
721 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 |
722 | #endif /* USE_LOCALE_CTYPE */ |
723 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
724 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 |
725 | #endif /* USE_LOCALE_COLLATE */ |
726 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
727 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 |
728 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
729 | ) |
730 | { |
731 | if (locwarn) |
bbce6d69 |
732 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc |
733 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
734 | ok = -1; |
bbce6d69 |
735 | } |
5f05dabc |
736 | |
bbce6d69 |
737 | #endif /* ! LC_ALL */ |
5f05dabc |
738 | |
739 | #ifdef USE_LOCALE_CTYPE |
740 | curctype = setlocale(LC_CTYPE, Nullch); |
741 | #endif /* USE_LOCALE_CTYPE */ |
742 | #ifdef USE_LOCALE_COLLATE |
743 | curcoll = setlocale(LC_COLLATE, Nullch); |
744 | #endif /* USE_LOCALE_COLLATE */ |
745 | #ifdef USE_LOCALE_NUMERIC |
746 | curnum = setlocale(LC_NUMERIC, Nullch); |
747 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
748 | } |
749 | |
36477c24 |
750 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
751 | perl_new_ctype(curctype); |
36477c24 |
752 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 |
753 | |
36477c24 |
754 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
755 | perl_new_collate(curcoll); |
36477c24 |
756 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
757 | |
36477c24 |
758 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
759 | perl_new_numeric(curnum); |
36477c24 |
760 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
761 | |
36477c24 |
762 | #endif /* USE_LOCALE */ |
ef7eada9 |
763 | |
f0c5b223 |
764 | return ok; |
765 | } |
766 | |
bbce6d69 |
767 | /* Backwards compatibility. */ |
768 | int |
769 | perl_init_i18nl14n(printwarn) |
770 | int printwarn; |
771 | { |
5f05dabc |
772 | return perl_init_i18nl10n(printwarn); |
bbce6d69 |
773 | } |
ef7eada9 |
774 | |
36477c24 |
775 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 |
776 | |
bbce6d69 |
777 | /* |
778 | * mem_collxfrm() is a bit like strxfrm() but with two important |
779 | * differences. First, it handles embedded NULs. Second, it allocates |
780 | * a bit more memory than needed for the transformed data itself. |
781 | * The real transformed data begins at offset sizeof(collationix). |
782 | * Please see sv_collxfrm() to see how this is used. |
783 | */ |
784 | char * |
785 | mem_collxfrm(s, len, xlen) |
786 | const char *s; |
787 | STRLEN len; |
788 | STRLEN *xlen; |
789 | { |
790 | char *xbuf; |
791 | STRLEN xalloc, xin, xout; |
792 | |
793 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ |
794 | /* the +1 is for the terminating NUL. */ |
795 | |
796 | xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1; |
797 | New(171, xbuf, xalloc, char); |
798 | if (! xbuf) |
799 | goto bad; |
800 | |
801 | *(U32*)xbuf = collation_ix; |
802 | xout = sizeof(collation_ix); |
803 | for (xin = 0; xin < len; ) { |
804 | SSize_t xused; |
805 | |
806 | for (;;) { |
807 | xused = strxfrm(xbuf + xout, s + xin, xalloc - xout); |
808 | if (xused == -1) |
809 | goto bad; |
810 | if (xused < xalloc - xout) |
811 | break; |
812 | xalloc = (2 * xalloc) + 1; |
813 | Renew(xbuf, xalloc, char); |
814 | if (! xbuf) |
815 | goto bad; |
816 | } |
ef7eada9 |
817 | |
bbce6d69 |
818 | xin += strlen(s + xin) + 1; |
819 | xout += xused; |
820 | |
821 | /* Embedded NULs are understood but silently skipped |
822 | * because they make no sense in locale collation. */ |
823 | } |
ef7eada9 |
824 | |
bbce6d69 |
825 | xbuf[xout] = '\0'; |
826 | *xlen = xout - sizeof(collation_ix); |
827 | return xbuf; |
828 | |
829 | bad: |
830 | Safefree(xbuf); |
831 | *xlen = 0; |
832 | return NULL; |
ef7eada9 |
833 | } |
834 | |
36477c24 |
835 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
836 | |
378cc40b |
837 | void |
bbce6d69 |
838 | fbm_compile(sv) |
79072805 |
839 | SV *sv; |
378cc40b |
840 | { |
a687059c |
841 | register unsigned char *s; |
842 | register unsigned char *table; |
79072805 |
843 | register U32 i; |
844 | register U32 len = SvCUR(sv); |
845 | I32 rarest = 0; |
846 | U32 frequency = 256; |
847 | |
748a9306 |
848 | if (len > 255) |
849 | return; /* can't have offsets that big */ |
79072805 |
850 | Sv_Grow(sv,len+258); |
463ee0b2 |
851 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
a687059c |
852 | s = table - 2; |
853 | for (i = 0; i < 256; i++) { |
378cc40b |
854 | table[i] = len; |
855 | } |
856 | i = 0; |
463ee0b2 |
857 | while (s >= (unsigned char*)(SvPVX(sv))) |
a687059c |
858 | { |
bbce6d69 |
859 | if (table[*s] == len) |
860 | table[*s] = i; |
378cc40b |
861 | s--,i++; |
862 | } |
79072805 |
863 | sv_upgrade(sv, SVt_PVBM); |
bbce6d69 |
864 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 |
865 | SvVALID_on(sv); |
378cc40b |
866 | |
463ee0b2 |
867 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 |
868 | for (i = 0; i < len; i++) { |
869 | if (freq[s[i]] < frequency) { |
870 | rarest = i; |
871 | frequency = freq[s[i]]; |
378cc40b |
872 | } |
873 | } |
79072805 |
874 | BmRARE(sv) = s[rarest]; |
875 | BmPREVIOUS(sv) = rarest; |
760ac839 |
876 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b |
877 | } |
878 | |
378cc40b |
879 | char * |
79072805 |
880 | fbm_instr(big, bigend, littlestr) |
a687059c |
881 | unsigned char *big; |
882 | register unsigned char *bigend; |
79072805 |
883 | SV *littlestr; |
378cc40b |
884 | { |
a687059c |
885 | register unsigned char *s; |
79072805 |
886 | register I32 tmp; |
887 | register I32 littlelen; |
a687059c |
888 | register unsigned char *little; |
889 | register unsigned char *table; |
890 | register unsigned char *olds; |
891 | register unsigned char *oldlittle; |
378cc40b |
892 | |
79072805 |
893 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e |
894 | STRLEN len; |
895 | char *l = SvPV(littlestr,len); |
896 | if (!len) |
d48672a2 |
897 | return (char*)big; |
a0d0e21e |
898 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 |
899 | } |
378cc40b |
900 | |
79072805 |
901 | littlelen = SvCUR(littlestr); |
902 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
0f85fab0 |
903 | if (littlelen > bigend - big) |
904 | return Nullch; |
463ee0b2 |
905 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 |
906 | s = bigend - littlelen; |
36477c24 |
907 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 |
908 | return (char*)s; /* how sweet it is */ |
909 | else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' |
910 | && s > big) { |
911 | s--; |
36477c24 |
912 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 |
913 | return (char*)s; |
a687059c |
914 | } |
bbce6d69 |
915 | return Nullch; |
a687059c |
916 | } |
463ee0b2 |
917 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 |
918 | if (--littlelen >= bigend - big) |
919 | return Nullch; |
920 | s = big + littlelen; |
a687059c |
921 | oldlittle = little = table - 2; |
bbce6d69 |
922 | if (s < bigend) { |
923 | top2: |
924 | /*SUPPRESS 560*/ |
925 | if (tmp = table[*s]) { |
62b28dd9 |
926 | #ifdef POINTERRIGOR |
bbce6d69 |
927 | if (bigend - s > tmp) { |
928 | s += tmp; |
929 | goto top2; |
930 | } |
62b28dd9 |
931 | #else |
bbce6d69 |
932 | if ((s += tmp) < bigend) |
933 | goto top2; |
62b28dd9 |
934 | #endif |
bbce6d69 |
935 | return Nullch; |
a687059c |
936 | } |
bbce6d69 |
937 | else { |
938 | tmp = littlelen; /* less expensive than calling strncmp() */ |
939 | olds = s; |
940 | while (tmp--) { |
941 | if (*--s == *--little) |
942 | continue; |
943 | s = olds + 1; /* here we pay the price for failure */ |
944 | little = oldlittle; |
945 | if (s < bigend) /* fake up continue to outer loop */ |
62b28dd9 |
946 | goto top2; |
62b28dd9 |
947 | return Nullch; |
a687059c |
948 | } |
bbce6d69 |
949 | return (char *)s; |
378cc40b |
950 | } |
951 | } |
952 | return Nullch; |
953 | } |
954 | |
955 | char * |
956 | screaminstr(bigstr, littlestr) |
79072805 |
957 | SV *bigstr; |
958 | SV *littlestr; |
378cc40b |
959 | { |
a687059c |
960 | register unsigned char *s, *x; |
961 | register unsigned char *big; |
79072805 |
962 | register I32 pos; |
963 | register I32 previous; |
964 | register I32 first; |
a687059c |
965 | register unsigned char *little; |
966 | register unsigned char *bigend; |
967 | register unsigned char *littleend; |
378cc40b |
968 | |
79072805 |
969 | if ((pos = screamfirst[BmRARE(littlestr)]) < 0) |
378cc40b |
970 | return Nullch; |
463ee0b2 |
971 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 |
972 | littleend = little + SvCUR(littlestr); |
378cc40b |
973 | first = *little++; |
79072805 |
974 | previous = BmPREVIOUS(littlestr); |
463ee0b2 |
975 | big = (unsigned char *)(SvPVX(bigstr)); |
79072805 |
976 | bigend = big + SvCUR(bigstr); |
378cc40b |
977 | while (pos < previous) { |
978 | if (!(pos += screamnext[pos])) |
979 | return Nullch; |
980 | } |
de3bb511 |
981 | #ifdef POINTERRIGOR |
bbce6d69 |
982 | do { |
983 | if (big[pos-previous] != first) |
984 | continue; |
985 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
986 | if (x >= bigend) |
987 | return Nullch; |
988 | if (*s++ != *x++) { |
989 | s--; |
990 | break; |
de3bb511 |
991 | } |
bbce6d69 |
992 | } |
993 | if (s == littleend) |
994 | return (char *)(big+pos-previous); |
995 | } while ( pos += screamnext[pos] ); |
de3bb511 |
996 | #else /* !POINTERRIGOR */ |
997 | big -= previous; |
bbce6d69 |
998 | do { |
999 | if (big[pos] != first) |
1000 | continue; |
1001 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
1002 | if (x >= bigend) |
1003 | return Nullch; |
1004 | if (*s++ != *x++) { |
1005 | s--; |
1006 | break; |
378cc40b |
1007 | } |
bbce6d69 |
1008 | } |
1009 | if (s == littleend) |
1010 | return (char *)(big+pos); |
1011 | } while ( pos += screamnext[pos] ); |
de3bb511 |
1012 | #endif /* POINTERRIGOR */ |
8d063cd8 |
1013 | return Nullch; |
1014 | } |
1015 | |
79072805 |
1016 | I32 |
bbce6d69 |
1017 | ibcmp(s1, s2, len) |
1018 | char *s1, *s2; |
79072805 |
1019 | register I32 len; |
1020 | { |
bbce6d69 |
1021 | register U8 *a = (U8 *)s1; |
1022 | register U8 *b = (U8 *)s2; |
79072805 |
1023 | while (len--) { |
bbce6d69 |
1024 | if (*a != *b && *a != fold[*b]) |
1025 | return 1; |
1026 | a++,b++; |
1027 | } |
1028 | return 0; |
1029 | } |
1030 | |
1031 | I32 |
1032 | ibcmp_locale(s1, s2, len) |
1033 | char *s1, *s2; |
1034 | register I32 len; |
1035 | { |
1036 | register U8 *a = (U8 *)s1; |
1037 | register U8 *b = (U8 *)s2; |
1038 | while (len--) { |
1039 | if (*a != *b && *a != fold_locale[*b]) |
1040 | return 1; |
1041 | a++,b++; |
79072805 |
1042 | } |
1043 | return 0; |
1044 | } |
1045 | |
8d063cd8 |
1046 | /* copy a string to a safe spot */ |
1047 | |
1048 | char * |
a0d0e21e |
1049 | savepv(sv) |
79072805 |
1050 | char *sv; |
8d063cd8 |
1051 | { |
a687059c |
1052 | register char *newaddr; |
8d063cd8 |
1053 | |
79072805 |
1054 | New(902,newaddr,strlen(sv)+1,char); |
1055 | (void)strcpy(newaddr,sv); |
8d063cd8 |
1056 | return newaddr; |
1057 | } |
1058 | |
a687059c |
1059 | /* same thing but with a known length */ |
1060 | |
1061 | char * |
a0d0e21e |
1062 | savepvn(sv, len) |
79072805 |
1063 | char *sv; |
1064 | register I32 len; |
a687059c |
1065 | { |
1066 | register char *newaddr; |
1067 | |
1068 | New(903,newaddr,len+1,char); |
79072805 |
1069 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c |
1070 | newaddr[len] = '\0'; /* is now */ |
1071 | return newaddr; |
1072 | } |
1073 | |
a0d0e21e |
1074 | #ifdef I_STDARG |
8990e307 |
1075 | char * |
71be2cbc |
1076 | mess(const char *pat, va_list *args) |
a687059c |
1077 | #else |
1078 | /*VARARGS0*/ |
de3bb511 |
1079 | char * |
8990e307 |
1080 | mess(pat, args) |
71be2cbc |
1081 | const char *pat; |
2304df62 |
1082 | va_list *args; |
8990e307 |
1083 | #endif |
1084 | { |
a687059c |
1085 | char *s; |
f0c5b223 |
1086 | char *s_start; |
79072805 |
1087 | SV *tmpstr; |
1088 | I32 usermess; |
d48672a2 |
1089 | #ifndef HAS_VPRINTF |
85e6fe83 |
1090 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1091 | char *vsprintf(); |
1092 | #else |
79072805 |
1093 | I32 vsprintf(); |
a687059c |
1094 | #endif |
d48672a2 |
1095 | #endif |
a687059c |
1096 | |
f0c5b223 |
1097 | s = s_start = buf; |
de3bb511 |
1098 | usermess = strEQ(pat, "%s"); |
1099 | if (usermess) { |
8990e307 |
1100 | tmpstr = sv_newmortal(); |
2304df62 |
1101 | sv_setpv(tmpstr, va_arg(*args, char *)); |
8ebc5c01 |
1102 | *s++ = SvCUR(tmpstr) ? SvPVX(tmpstr)[SvCUR(tmpstr)-1] : ' '; |
de3bb511 |
1103 | } |
1104 | else { |
2304df62 |
1105 | (void) vsprintf(s,pat,*args); |
de3bb511 |
1106 | s += strlen(s); |
1107 | } |
2304df62 |
1108 | va_end(*args); |
a687059c |
1109 | |
5f05dabc |
1110 | if (!(s > s_start && s[-1] == '\n')) { |
2304df62 |
1111 | if (dirty) |
1112 | strcpy(s, " during global destruction.\n"); |
1113 | else { |
1114 | if (curcop->cop_line) { |
1115 | (void)sprintf(s," at %s line %ld", |
1116 | SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line); |
1117 | s += strlen(s); |
1118 | } |
c07a80fd |
1119 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
1120 | bool line_mode = (RsSIMPLE(rs) && |
1121 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); |
2304df62 |
1122 | (void)sprintf(s,", <%s> %s %ld", |
1123 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), |
c07a80fd |
1124 | line_mode ? "line" : "chunk", |
a0d0e21e |
1125 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 |
1126 | s += strlen(s); |
1127 | } |
1128 | (void)strcpy(s,".\n"); |
f0c5b223 |
1129 | s += 2; |
a687059c |
1130 | } |
de3bb511 |
1131 | if (usermess) |
79072805 |
1132 | sv_catpv(tmpstr,buf+1); |
a687059c |
1133 | } |
de3bb511 |
1134 | |
f0c5b223 |
1135 | if (s - s_start >= sizeof(buf)) { /* Ooops! */ |
1136 | if (usermess) |
760ac839 |
1137 | PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr)); |
f0c5b223 |
1138 | else |
760ac839 |
1139 | PerlIO_puts(PerlIO_stderr(), buf); |
1140 | PerlIO_puts(PerlIO_stderr(), "panic: message overflow - memory corrupted!\n"); |
f0c5b223 |
1141 | my_exit(1); |
1142 | } |
de3bb511 |
1143 | if (usermess) |
463ee0b2 |
1144 | return SvPVX(tmpstr); |
de3bb511 |
1145 | else |
1146 | return buf; |
a687059c |
1147 | } |
1148 | |
ecfc5424 |
1149 | #ifdef I_STDARG |
36477c24 |
1150 | OP * |
71be2cbc |
1151 | die(const char* pat, ...) |
36477c24 |
1152 | #else |
1153 | /*VARARGS0*/ |
1154 | OP * |
1155 | die(pat, va_alist) |
71be2cbc |
1156 | const char *pat; |
36477c24 |
1157 | va_dcl |
1158 | #endif |
1159 | { |
1160 | va_list args; |
1161 | char *message; |
1162 | int oldrunlevel = runlevel; |
1163 | int was_in_eval = in_eval; |
1164 | HV *stash; |
1165 | GV *gv; |
1166 | CV *cv; |
1167 | |
1168 | /* We have to switch back to mainstack or die_where may try to pop |
1169 | * the eval block from the wrong stack if die is being called from a |
1170 | * signal handler. - dkindred@cs.cmu.edu */ |
1171 | if (curstack != mainstack) { |
1172 | dSP; |
1173 | SWITCHSTACK(curstack, mainstack); |
1174 | } |
1175 | |
1176 | #ifdef I_STDARG |
1177 | va_start(args, pat); |
1178 | #else |
1179 | va_start(args); |
1180 | #endif |
1181 | message = mess(pat, &args); |
1182 | va_end(args); |
1183 | |
1738f5c4 |
1184 | if (diehook) { |
1185 | /* sv_2cv might call croak() */ |
1186 | SV *olddiehook = diehook; |
1187 | ENTER; |
1188 | SAVESPTR(diehook); |
1189 | diehook = Nullsv; |
1190 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1191 | LEAVE; |
1192 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
1193 | dSP; |
774d564b |
1194 | SV *msg; |
1195 | |
1196 | ENTER; |
1197 | msg = newSVpv(message, 0); |
1198 | SvREADONLY_on(msg); |
1199 | SAVEFREESV(msg); |
1738f5c4 |
1200 | |
1201 | PUSHMARK(sp); |
1202 | XPUSHs(msg); |
1203 | PUTBACK; |
1204 | perl_call_sv((SV*)cv, G_DISCARD); |
1205 | |
774d564b |
1206 | LEAVE; |
1738f5c4 |
1207 | } |
36477c24 |
1208 | } |
1209 | |
1210 | restartop = die_where(message); |
1211 | if ((!restartop && was_in_eval) || oldrunlevel > 1) |
54310121 |
1212 | JMPENV_JUMP(3); |
36477c24 |
1213 | return restartop; |
1214 | } |
1215 | |
1216 | #ifdef I_STDARG |
79072805 |
1217 | void |
71be2cbc |
1218 | croak(const char* pat, ...) |
463ee0b2 |
1219 | #else |
8990e307 |
1220 | /*VARARGS0*/ |
1221 | void |
1222 | croak(pat, va_alist) |
1223 | char *pat; |
1224 | va_dcl |
463ee0b2 |
1225 | #endif |
a687059c |
1226 | { |
1227 | va_list args; |
de3bb511 |
1228 | char *message; |
748a9306 |
1229 | HV *stash; |
1230 | GV *gv; |
1231 | CV *cv; |
a687059c |
1232 | |
a0d0e21e |
1233 | #ifdef I_STDARG |
8990e307 |
1234 | va_start(args, pat); |
1235 | #else |
a687059c |
1236 | va_start(args); |
8990e307 |
1237 | #endif |
2304df62 |
1238 | message = mess(pat, &args); |
a687059c |
1239 | va_end(args); |
20cec16a |
1240 | if (diehook) { |
1738f5c4 |
1241 | /* sv_2cv might call croak() */ |
20cec16a |
1242 | SV *olddiehook = diehook; |
1738f5c4 |
1243 | ENTER; |
1244 | SAVESPTR(diehook); |
1245 | diehook = Nullsv; |
20cec16a |
1246 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 |
1247 | LEAVE; |
1248 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1249 | dSP; |
774d564b |
1250 | SV *msg; |
1251 | |
1252 | ENTER; |
1253 | msg = newSVpv(message, 0); |
1254 | SvREADONLY_on(msg); |
1255 | SAVEFREESV(msg); |
20cec16a |
1256 | |
1257 | PUSHMARK(sp); |
1738f5c4 |
1258 | XPUSHs(msg); |
20cec16a |
1259 | PUTBACK; |
1260 | perl_call_sv((SV*)cv, G_DISCARD); |
36477c24 |
1261 | |
774d564b |
1262 | LEAVE; |
20cec16a |
1263 | } |
748a9306 |
1264 | } |
a0d0e21e |
1265 | if (in_eval) { |
1266 | restartop = die_where(message); |
54310121 |
1267 | JMPENV_JUMP(3); |
a0d0e21e |
1268 | } |
760ac839 |
1269 | PerlIO_puts(PerlIO_stderr(),message); |
1270 | (void)PerlIO_flush(PerlIO_stderr()); |
f86702cc |
1271 | my_failure_exit(); |
a687059c |
1272 | } |
1273 | |
8990e307 |
1274 | void |
ecfc5424 |
1275 | #ifdef I_STDARG |
71be2cbc |
1276 | warn(const char* pat,...) |
463ee0b2 |
1277 | #else |
8990e307 |
1278 | /*VARARGS0*/ |
1279 | warn(pat,va_alist) |
71be2cbc |
1280 | const char *pat; |
8990e307 |
1281 | va_dcl |
463ee0b2 |
1282 | #endif |
a687059c |
1283 | { |
1284 | va_list args; |
de3bb511 |
1285 | char *message; |
748a9306 |
1286 | HV *stash; |
1287 | GV *gv; |
1288 | CV *cv; |
a687059c |
1289 | |
a0d0e21e |
1290 | #ifdef I_STDARG |
8990e307 |
1291 | va_start(args, pat); |
1292 | #else |
a687059c |
1293 | va_start(args); |
8990e307 |
1294 | #endif |
2304df62 |
1295 | message = mess(pat, &args); |
a687059c |
1296 | va_end(args); |
1297 | |
20cec16a |
1298 | if (warnhook) { |
1738f5c4 |
1299 | /* sv_2cv might call warn() */ |
20cec16a |
1300 | SV *oldwarnhook = warnhook; |
1738f5c4 |
1301 | ENTER; |
1302 | SAVESPTR(warnhook); |
1303 | warnhook = Nullsv; |
20cec16a |
1304 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 |
1305 | LEAVE; |
1306 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1307 | dSP; |
774d564b |
1308 | SV *msg; |
1309 | |
1310 | ENTER; |
1311 | msg = newSVpv(message, 0); |
1312 | SvREADONLY_on(msg); |
1313 | SAVEFREESV(msg); |
1314 | |
20cec16a |
1315 | PUSHMARK(sp); |
774d564b |
1316 | XPUSHs(msg); |
20cec16a |
1317 | PUTBACK; |
1318 | perl_call_sv((SV*)cv, G_DISCARD); |
774d564b |
1319 | |
1320 | LEAVE; |
20cec16a |
1321 | return; |
1322 | } |
748a9306 |
1323 | } |
20cec16a |
1324 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c |
1325 | #ifdef LEAKTEST |
20cec16a |
1326 | DEBUG_L(xstat()); |
a687059c |
1327 | #endif |
20cec16a |
1328 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c |
1329 | } |
8d063cd8 |
1330 | |
a0d0e21e |
1331 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
68dc0745 |
1332 | #ifndef _WIN32 |
8d063cd8 |
1333 | void |
7c0587c8 |
1334 | my_setenv(nam,val) |
8d063cd8 |
1335 | char *nam, *val; |
1336 | { |
79072805 |
1337 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 |
1338 | |
fe14fcc3 |
1339 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 |
1340 | I32 j; |
1341 | I32 max; |
fe14fcc3 |
1342 | char **tmpenv; |
1343 | |
de3bb511 |
1344 | /*SUPPRESS 530*/ |
fe14fcc3 |
1345 | for (max = i; environ[max]; max++) ; |
1346 | New(901,tmpenv, max+2, char*); |
1347 | for (j=0; j<max; j++) /* copy environment */ |
a0d0e21e |
1348 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 |
1349 | tmpenv[max] = Nullch; |
1350 | environ = tmpenv; /* tell exec where it is now */ |
1351 | } |
a687059c |
1352 | if (!val) { |
1353 | while (environ[i]) { |
1354 | environ[i] = environ[i+1]; |
1355 | i++; |
1356 | } |
1357 | return; |
1358 | } |
8d063cd8 |
1359 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 |
1360 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 |
1361 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1362 | } |
fe14fcc3 |
1363 | else |
1364 | Safefree(environ[i]); |
a687059c |
1365 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 |
1366 | #ifndef MSDOS |
a687059c |
1367 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 |
1368 | #else |
1369 | /* MS-DOS requires environment variable names to be in uppercase */ |
fe14fcc3 |
1370 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1371 | * some utilities and applications may break because they only look |
1372 | * for upper case strings. (Fixed strupr() bug here.)] |
1373 | */ |
1374 | strcpy(environ[i],nam); strupr(environ[i]); |
62b28dd9 |
1375 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1376 | #endif /* MSDOS */ |
8d063cd8 |
1377 | } |
1378 | |
79072805 |
1379 | I32 |
1380 | setenv_getix(nam) |
8d063cd8 |
1381 | char *nam; |
1382 | { |
79072805 |
1383 | register I32 i, len = strlen(nam); |
8d063cd8 |
1384 | |
1385 | for (i = 0; environ[i]; i++) { |
1386 | if (strnEQ(environ[i],nam,len) && environ[i][len] == '=') |
1387 | break; /* strnEQ must come first to avoid */ |
1388 | } /* potential SEGV's */ |
1389 | return i; |
1390 | } |
68dc0745 |
1391 | |
1392 | #else /* if _WIN32 */ |
1393 | |
1394 | void |
1395 | my_setenv(nam,val) |
1396 | char *nam, *val; |
1397 | { |
1398 | register char *envstr; |
1399 | STRLEN namlen = strlen(nam); |
1400 | STRLEN vallen = strlen(val ? val : ""); |
1401 | |
1402 | New(9040, envstr, namlen + vallen + 3, char); |
1403 | (void)sprintf(envstr,"%s=%s",nam,val); |
1404 | if (!vallen) { |
1405 | /* An attempt to delete the entry. |
1406 | * We try to fix a Win32 process handling goof: Children |
1407 | * of the current process will end up seeing the |
1408 | * grandparent's entry if the current process has never |
1409 | * modified the entry being deleted. So we call _putenv() |
1410 | * twice: once to pretend to modify the entry, and the |
1411 | * second time to actually delete it. GSAR 97-03-19 |
1412 | */ |
1413 | envstr[namlen+1] = 'X'; envstr[namlen+2] = '\0'; |
1414 | (void)_putenv(envstr); |
1415 | envstr[namlen+1] = '\0'; |
1416 | } |
1417 | (void)_putenv(envstr); |
1418 | } |
1419 | |
1420 | #endif /* _WIN32 */ |
a0d0e21e |
1421 | #endif /* !VMS */ |
378cc40b |
1422 | |
16d20bd9 |
1423 | #ifdef UNLINK_ALL_VERSIONS |
79072805 |
1424 | I32 |
378cc40b |
1425 | unlnk(f) /* unlink all versions of a file */ |
1426 | char *f; |
1427 | { |
79072805 |
1428 | I32 i; |
378cc40b |
1429 | |
1430 | for (i = 0; unlink(f) >= 0; i++) ; |
1431 | return i ? 0 : -1; |
1432 | } |
1433 | #endif |
1434 | |
85e6fe83 |
1435 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b |
1436 | char * |
7c0587c8 |
1437 | my_bcopy(from,to,len) |
378cc40b |
1438 | register char *from; |
1439 | register char *to; |
79072805 |
1440 | register I32 len; |
378cc40b |
1441 | { |
1442 | char *retval = to; |
1443 | |
7c0587c8 |
1444 | if (from - to >= 0) { |
1445 | while (len--) |
1446 | *to++ = *from++; |
1447 | } |
1448 | else { |
1449 | to += len; |
1450 | from += len; |
1451 | while (len--) |
faf8582f |
1452 | *(--to) = *(--from); |
7c0587c8 |
1453 | } |
378cc40b |
1454 | return retval; |
1455 | } |
ffed7fef |
1456 | #endif |
378cc40b |
1457 | |
7c0587c8 |
1458 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b |
1459 | char * |
7c0587c8 |
1460 | my_bzero(loc,len) |
378cc40b |
1461 | register char *loc; |
79072805 |
1462 | register I32 len; |
378cc40b |
1463 | { |
1464 | char *retval = loc; |
1465 | |
1466 | while (len--) |
1467 | *loc++ = 0; |
1468 | return retval; |
1469 | } |
1470 | #endif |
7c0587c8 |
1471 | |
36477c24 |
1472 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 |
1473 | I32 |
7c0587c8 |
1474 | my_memcmp(s1,s2,len) |
36477c24 |
1475 | char *s1; |
1476 | char *s2; |
79072805 |
1477 | register I32 len; |
7c0587c8 |
1478 | { |
36477c24 |
1479 | register U8 *a = (U8 *)s1; |
1480 | register U8 *b = (U8 *)s2; |
79072805 |
1481 | register I32 tmp; |
7c0587c8 |
1482 | |
1483 | while (len--) { |
36477c24 |
1484 | if (tmp = *a++ - *b++) |
7c0587c8 |
1485 | return tmp; |
1486 | } |
1487 | return 0; |
1488 | } |
36477c24 |
1489 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c |
1490 | |
4633a7c4 |
1491 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 |
1492 | #ifndef HAS_VPRINTF |
a687059c |
1493 | |
85e6fe83 |
1494 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1495 | char * |
1496 | #else |
1497 | int |
1498 | #endif |
1499 | vsprintf(dest, pat, args) |
71be2cbc |
1500 | char *dest; |
1501 | const char *pat; |
1502 | char *args; |
a687059c |
1503 | { |
1504 | FILE fakebuf; |
1505 | |
1506 | fakebuf._ptr = dest; |
1507 | fakebuf._cnt = 32767; |
35c8bce7 |
1508 | #ifndef _IOSTRG |
1509 | #define _IOSTRG 0 |
1510 | #endif |
a687059c |
1511 | fakebuf._flag = _IOWRT|_IOSTRG; |
1512 | _doprnt(pat, args, &fakebuf); /* what a kludge */ |
1513 | (void)putc('\0', &fakebuf); |
85e6fe83 |
1514 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1515 | return(dest); |
1516 | #else |
1517 | return 0; /* perl doesn't use return value */ |
1518 | #endif |
1519 | } |
1520 | |
fe14fcc3 |
1521 | #endif /* HAS_VPRINTF */ |
4633a7c4 |
1522 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c |
1523 | |
1524 | #ifdef MYSWAP |
ffed7fef |
1525 | #if BYTEORDER != 0x4321 |
a687059c |
1526 | short |
748a9306 |
1527 | #ifndef CAN_PROTOTYPE |
a687059c |
1528 | my_swap(s) |
1529 | short s; |
748a9306 |
1530 | #else |
1531 | my_swap(short s) |
1532 | #endif |
a687059c |
1533 | { |
1534 | #if (BYTEORDER & 1) == 0 |
1535 | short result; |
1536 | |
1537 | result = ((s & 255) << 8) + ((s >> 8) & 255); |
1538 | return result; |
1539 | #else |
1540 | return s; |
1541 | #endif |
1542 | } |
1543 | |
1544 | long |
748a9306 |
1545 | #ifndef CAN_PROTOTYPE |
1546 | my_htonl(l) |
a687059c |
1547 | register long l; |
748a9306 |
1548 | #else |
1549 | my_htonl(long l) |
1550 | #endif |
a687059c |
1551 | { |
1552 | union { |
1553 | long result; |
ffed7fef |
1554 | char c[sizeof(long)]; |
a687059c |
1555 | } u; |
1556 | |
ffed7fef |
1557 | #if BYTEORDER == 0x1234 |
a687059c |
1558 | u.c[0] = (l >> 24) & 255; |
1559 | u.c[1] = (l >> 16) & 255; |
1560 | u.c[2] = (l >> 8) & 255; |
1561 | u.c[3] = l & 255; |
1562 | return u.result; |
1563 | #else |
ffed7fef |
1564 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1565 | croak("Unknown BYTEORDER\n"); |
a687059c |
1566 | #else |
79072805 |
1567 | register I32 o; |
1568 | register I32 s; |
a687059c |
1569 | |
ffed7fef |
1570 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1571 | u.c[o & 0xf] = (l >> s) & 255; |
a687059c |
1572 | } |
1573 | return u.result; |
1574 | #endif |
1575 | #endif |
1576 | } |
1577 | |
1578 | long |
748a9306 |
1579 | #ifndef CAN_PROTOTYPE |
1580 | my_ntohl(l) |
a687059c |
1581 | register long l; |
748a9306 |
1582 | #else |
1583 | my_ntohl(long l) |
1584 | #endif |
a687059c |
1585 | { |
1586 | union { |
1587 | long l; |
ffed7fef |
1588 | char c[sizeof(long)]; |
a687059c |
1589 | } u; |
1590 | |
ffed7fef |
1591 | #if BYTEORDER == 0x1234 |
a687059c |
1592 | u.c[0] = (l >> 24) & 255; |
1593 | u.c[1] = (l >> 16) & 255; |
1594 | u.c[2] = (l >> 8) & 255; |
1595 | u.c[3] = l & 255; |
1596 | return u.l; |
1597 | #else |
ffed7fef |
1598 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1599 | croak("Unknown BYTEORDER\n"); |
a687059c |
1600 | #else |
79072805 |
1601 | register I32 o; |
1602 | register I32 s; |
a687059c |
1603 | |
1604 | u.l = l; |
1605 | l = 0; |
ffed7fef |
1606 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1607 | l |= (u.c[o & 0xf] & 255) << s; |
a687059c |
1608 | } |
1609 | return l; |
1610 | #endif |
1611 | #endif |
1612 | } |
1613 | |
ffed7fef |
1614 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 |
1615 | #endif /* MYSWAP */ |
1616 | |
1617 | /* |
1618 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. |
1619 | * If these functions are defined, |
1620 | * the BYTEORDER is neither 0x1234 nor 0x4321. |
1621 | * However, this is not assumed. |
1622 | * -DWS |
1623 | */ |
1624 | |
1625 | #define HTOV(name,type) \ |
1626 | type \ |
1627 | name (n) \ |
1628 | register type n; \ |
1629 | { \ |
1630 | union { \ |
1631 | type value; \ |
1632 | char c[sizeof(type)]; \ |
1633 | } u; \ |
79072805 |
1634 | register I32 i; \ |
1635 | register I32 s; \ |
988174c1 |
1636 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1637 | u.c[i] = (n >> s) & 0xFF; \ |
1638 | } \ |
1639 | return u.value; \ |
1640 | } |
1641 | |
1642 | #define VTOH(name,type) \ |
1643 | type \ |
1644 | name (n) \ |
1645 | register type n; \ |
1646 | { \ |
1647 | union { \ |
1648 | type value; \ |
1649 | char c[sizeof(type)]; \ |
1650 | } u; \ |
79072805 |
1651 | register I32 i; \ |
1652 | register I32 s; \ |
988174c1 |
1653 | u.value = n; \ |
1654 | n = 0; \ |
1655 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1656 | n += (u.c[i] & 0xFF) << s; \ |
1657 | } \ |
1658 | return n; \ |
1659 | } |
1660 | |
1661 | #if defined(HAS_HTOVS) && !defined(htovs) |
1662 | HTOV(htovs,short) |
1663 | #endif |
1664 | #if defined(HAS_HTOVL) && !defined(htovl) |
1665 | HTOV(htovl,long) |
1666 | #endif |
1667 | #if defined(HAS_VTOHS) && !defined(vtohs) |
1668 | VTOH(vtohs,short) |
1669 | #endif |
1670 | #if defined(HAS_VTOHL) && !defined(vtohl) |
1671 | VTOH(vtohl,long) |
1672 | #endif |
a687059c |
1673 | |
5f05dabc |
1674 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
1675 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) |
760ac839 |
1676 | PerlIO * |
79072805 |
1677 | my_popen(cmd,mode) |
a687059c |
1678 | char *cmd; |
1679 | char *mode; |
1680 | { |
1681 | int p[2]; |
79072805 |
1682 | register I32 this, that; |
1683 | register I32 pid; |
1684 | SV *sv; |
1738f5c4 |
1685 | I32 doexec = strNE(cmd,"-"); |
a687059c |
1686 | |
ddcf38b7 |
1687 | #ifdef OS2 |
1688 | if (doexec) { |
1689 | return my_syspopen(cmd,mode); |
1690 | } |
1691 | #endif |
a687059c |
1692 | if (pipe(p) < 0) |
1693 | return Nullfp; |
1694 | this = (*mode == 'w'); |
1695 | that = !this; |
bbce6d69 |
1696 | if (doexec && tainting) { |
1697 | taint_env(); |
1698 | taint_proper("Insecure %s%s", "EXEC"); |
d48672a2 |
1699 | } |
a687059c |
1700 | while ((pid = (doexec?vfork():fork())) < 0) { |
1701 | if (errno != EAGAIN) { |
1702 | close(p[this]); |
1703 | if (!doexec) |
463ee0b2 |
1704 | croak("Can't fork"); |
a687059c |
1705 | return Nullfp; |
1706 | } |
1707 | sleep(5); |
1708 | } |
1709 | if (pid == 0) { |
79072805 |
1710 | GV* tmpgv; |
1711 | |
a687059c |
1712 | #define THIS that |
1713 | #define THAT this |
1714 | close(p[THAT]); |
1715 | if (p[THIS] != (*mode == 'r')) { |
1716 | dup2(p[THIS], *mode == 'r'); |
1717 | close(p[THIS]); |
1718 | } |
1719 | if (doexec) { |
a0d0e21e |
1720 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 |
1721 | int fd; |
1722 | |
1723 | #ifndef NOFILE |
1724 | #define NOFILE 20 |
1725 | #endif |
d48672a2 |
1726 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
ae986130 |
1727 | close(fd); |
1728 | #endif |
a687059c |
1729 | do_exec(cmd); /* may or may not use the shell */ |
1730 | _exit(1); |
1731 | } |
de3bb511 |
1732 | /*SUPPRESS 560*/ |
85e6fe83 |
1733 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
1734 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
9f68db38 |
1735 | forkprocess = 0; |
463ee0b2 |
1736 | hv_clear(pidstatus); /* we have no children */ |
a687059c |
1737 | return Nullfp; |
1738 | #undef THIS |
1739 | #undef THAT |
1740 | } |
62b28dd9 |
1741 | do_execfree(); /* free any memory malloced by child on vfork */ |
a687059c |
1742 | close(p[that]); |
62b28dd9 |
1743 | if (p[that] < p[this]) { |
1744 | dup2(p[this], p[that]); |
1745 | close(p[this]); |
1746 | p[this] = p[that]; |
1747 | } |
79072805 |
1748 | sv = *av_fetch(fdpid,p[this],TRUE); |
a0d0e21e |
1749 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
1750 | SvIVX(sv) = pid; |
a687059c |
1751 | forkprocess = pid; |
760ac839 |
1752 | return PerlIO_fdopen(p[this], mode); |
a687059c |
1753 | } |
7c0587c8 |
1754 | #else |
55497cff |
1755 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 |
1756 | FILE *popen(); |
760ac839 |
1757 | PerlIO * |
79072805 |
1758 | my_popen(cmd,mode) |
7c0587c8 |
1759 | char *cmd; |
1760 | char *mode; |
1761 | { |
760ac839 |
1762 | /* Needs work for PerlIO ! */ |
55497cff |
1763 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1764 | return popen(PerlIO_exportFILE(cmd, 0), mode); |
7c0587c8 |
1765 | } |
1766 | #endif |
1767 | |
1768 | #endif /* !DOSISH */ |
a687059c |
1769 | |
748a9306 |
1770 | #ifdef DUMP_FDS |
79072805 |
1771 | dump_fds(s) |
ae986130 |
1772 | char *s; |
1773 | { |
1774 | int fd; |
1775 | struct stat tmpstatbuf; |
1776 | |
760ac839 |
1777 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 |
1778 | for (fd = 0; fd < 32; fd++) { |
a0d0e21e |
1779 | if (Fstat(fd,&tmpstatbuf) >= 0) |
760ac839 |
1780 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 |
1781 | } |
760ac839 |
1782 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 |
1783 | } |
1784 | #endif |
1785 | |
fe14fcc3 |
1786 | #ifndef HAS_DUP2 |
fec02dd3 |
1787 | int |
a687059c |
1788 | dup2(oldfd,newfd) |
1789 | int oldfd; |
1790 | int newfd; |
1791 | { |
a0d0e21e |
1792 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 |
1793 | if (oldfd == newfd) |
1794 | return oldfd; |
62b28dd9 |
1795 | close(newfd); |
fec02dd3 |
1796 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 |
1797 | #else |
d48672a2 |
1798 | int fdtmp[256]; |
79072805 |
1799 | I32 fdx = 0; |
ae986130 |
1800 | int fd; |
1801 | |
fe14fcc3 |
1802 | if (oldfd == newfd) |
fec02dd3 |
1803 | return oldfd; |
a687059c |
1804 | close(newfd); |
fec02dd3 |
1805 | while ((fd = dup(oldfd)) != newfd && fd >= 0) /* good enough for low fd's */ |
ae986130 |
1806 | fdtmp[fdx++] = fd; |
1807 | while (fdx > 0) |
1808 | close(fdtmp[--fdx]); |
fec02dd3 |
1809 | return fd; |
62b28dd9 |
1810 | #endif |
a687059c |
1811 | } |
1812 | #endif |
1813 | |
ff68c719 |
1814 | |
1815 | #ifdef HAS_SIGACTION |
1816 | |
1817 | Sighandler_t |
1818 | rsignal(signo, handler) |
1819 | int signo; |
1820 | Sighandler_t handler; |
1821 | { |
1822 | struct sigaction act, oact; |
1823 | |
1824 | act.sa_handler = handler; |
1825 | sigemptyset(&act.sa_mask); |
1826 | act.sa_flags = 0; |
1827 | #ifdef SA_RESTART |
1828 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
1829 | #endif |
1830 | if (sigaction(signo, &act, &oact) == -1) |
36477c24 |
1831 | return SIG_ERR; |
ff68c719 |
1832 | else |
36477c24 |
1833 | return oact.sa_handler; |
ff68c719 |
1834 | } |
1835 | |
1836 | Sighandler_t |
1837 | rsignal_state(signo) |
1838 | int signo; |
1839 | { |
1840 | struct sigaction oact; |
1841 | |
1842 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) |
1843 | return SIG_ERR; |
1844 | else |
1845 | return oact.sa_handler; |
1846 | } |
1847 | |
1848 | int |
1849 | rsignal_save(signo, handler, save) |
1850 | int signo; |
1851 | Sighandler_t handler; |
1852 | Sigsave_t *save; |
1853 | { |
1854 | struct sigaction act; |
1855 | |
1856 | act.sa_handler = handler; |
1857 | sigemptyset(&act.sa_mask); |
1858 | act.sa_flags = 0; |
1859 | #ifdef SA_RESTART |
1860 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
1861 | #endif |
1862 | return sigaction(signo, &act, save); |
1863 | } |
1864 | |
1865 | int |
1866 | rsignal_restore(signo, save) |
1867 | int signo; |
1868 | Sigsave_t *save; |
1869 | { |
1870 | return sigaction(signo, save, (struct sigaction *)NULL); |
1871 | } |
1872 | |
1873 | #else /* !HAS_SIGACTION */ |
1874 | |
1875 | Sighandler_t |
1876 | rsignal(signo, handler) |
1877 | int signo; |
1878 | Sighandler_t handler; |
1879 | { |
1880 | return signal(signo, handler); |
1881 | } |
1882 | |
1883 | static int sig_trapped; |
1884 | |
1885 | static |
1886 | Signal_t |
1887 | sig_trap(signo) |
1888 | int signo; |
1889 | { |
1890 | sig_trapped++; |
1891 | } |
1892 | |
1893 | Sighandler_t |
1894 | rsignal_state(signo) |
1895 | int signo; |
1896 | { |
1897 | Sighandler_t oldsig; |
1898 | |
1899 | sig_trapped = 0; |
1900 | oldsig = signal(signo, sig_trap); |
1901 | signal(signo, oldsig); |
1902 | if (sig_trapped) |
1903 | kill(getpid(), signo); |
1904 | return oldsig; |
1905 | } |
1906 | |
1907 | int |
1908 | rsignal_save(signo, handler, save) |
1909 | int signo; |
1910 | Sighandler_t handler; |
1911 | Sigsave_t *save; |
1912 | { |
1913 | *save = signal(signo, handler); |
1914 | return (*save == SIG_ERR) ? -1 : 0; |
1915 | } |
1916 | |
1917 | int |
36477c24 |
1918 | rsignal_restore(signo, save) |
ff68c719 |
1919 | int signo; |
1920 | Sigsave_t *save; |
1921 | { |
1922 | return (signal(signo, *save) == SIG_ERR) ? -1 : 0; |
1923 | } |
1924 | |
1925 | #endif /* !HAS_SIGACTION */ |
1926 | |
5f05dabc |
1927 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
1928 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) |
79072805 |
1929 | I32 |
1930 | my_pclose(ptr) |
760ac839 |
1931 | PerlIO *ptr; |
a687059c |
1932 | { |
ff68c719 |
1933 | Sigsave_t hstat, istat, qstat; |
a687059c |
1934 | int status; |
a0d0e21e |
1935 | SV **svp; |
20188a90 |
1936 | int pid; |
a687059c |
1937 | |
760ac839 |
1938 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 |
1939 | pid = (int)SvIVX(*svp); |
a0d0e21e |
1940 | SvREFCNT_dec(*svp); |
1941 | *svp = &sv_undef; |
ddcf38b7 |
1942 | #ifdef OS2 |
1943 | if (pid == -1) { /* Opened by popen. */ |
1944 | return my_syspclose(ptr); |
1945 | } |
1946 | #endif |
760ac839 |
1947 | PerlIO_close(ptr); |
7c0587c8 |
1948 | #ifdef UTS |
1949 | if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
1950 | #endif |
ff68c719 |
1951 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
1952 | rsignal_save(SIGINT, SIG_IGN, &istat); |
1953 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); |
748a9306 |
1954 | do { |
1955 | pid = wait4pid(pid, &status, 0); |
1956 | } while (pid == -1 && errno == EINTR); |
ff68c719 |
1957 | rsignal_restore(SIGHUP, &hstat); |
1958 | rsignal_restore(SIGINT, &istat); |
1959 | rsignal_restore(SIGQUIT, &qstat); |
20188a90 |
1960 | return(pid < 0 ? pid : status); |
1961 | } |
4633a7c4 |
1962 | #endif /* !DOSISH */ |
1963 | |
1964 | #if !defined(DOSISH) || defined(OS2) |
79072805 |
1965 | I32 |
20188a90 |
1966 | wait4pid(pid,statusp,flags) |
1967 | int pid; |
1968 | int *statusp; |
1969 | int flags; |
1970 | { |
79072805 |
1971 | SV *sv; |
1972 | SV** svp; |
20188a90 |
1973 | char spid[16]; |
1974 | |
1975 | if (!pid) |
1976 | return -1; |
20188a90 |
1977 | if (pid > 0) { |
1978 | sprintf(spid, "%d", pid); |
79072805 |
1979 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
1980 | if (svp && *svp != &sv_undef) { |
463ee0b2 |
1981 | *statusp = SvIVX(*svp); |
748a9306 |
1982 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
1983 | return pid; |
1984 | } |
1985 | } |
1986 | else { |
79072805 |
1987 | HE *entry; |
20188a90 |
1988 | |
79072805 |
1989 | hv_iterinit(pidstatus); |
1990 | if (entry = hv_iternext(pidstatus)) { |
a0d0e21e |
1991 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 |
1992 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 |
1993 | *statusp = SvIVX(sv); |
20188a90 |
1994 | sprintf(spid, "%d", pid); |
748a9306 |
1995 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
1996 | return pid; |
1997 | } |
1998 | } |
79072805 |
1999 | #ifdef HAS_WAITPID |
2000 | return waitpid(pid,statusp,flags); |
2001 | #else |
a0d0e21e |
2002 | #ifdef HAS_WAIT4 |
2003 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
2004 | #else |
2005 | { |
2006 | I32 result; |
2007 | if (flags) |
2008 | croak("Can't do waitpid with flags"); |
2009 | else { |
2010 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) |
2011 | pidgone(result,*statusp); |
2012 | if (result < 0) |
2013 | *statusp = -1; |
2014 | } |
2015 | return result; |
a687059c |
2016 | } |
2017 | #endif |
20188a90 |
2018 | #endif |
a687059c |
2019 | } |
7c0587c8 |
2020 | #endif /* !DOSISH */ |
a687059c |
2021 | |
7c0587c8 |
2022 | void |
de3bb511 |
2023 | /*SUPPRESS 590*/ |
a687059c |
2024 | pidgone(pid,status) |
2025 | int pid; |
2026 | int status; |
2027 | { |
79072805 |
2028 | register SV *sv; |
20188a90 |
2029 | char spid[16]; |
a687059c |
2030 | |
20188a90 |
2031 | sprintf(spid, "%d", pid); |
79072805 |
2032 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e |
2033 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
2034 | SvIVX(sv) = status; |
20188a90 |
2035 | return; |
a687059c |
2036 | } |
2037 | |
55497cff |
2038 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 |
2039 | int pclose(); |
ddcf38b7 |
2040 | #ifdef HAS_FORK |
2041 | int /* Cannot prototype with I32 |
2042 | in os2ish.h. */ |
2043 | my_syspclose(ptr) |
2044 | #else |
79072805 |
2045 | I32 |
2046 | my_pclose(ptr) |
ddcf38b7 |
2047 | #endif |
760ac839 |
2048 | PerlIO *ptr; |
a687059c |
2049 | { |
760ac839 |
2050 | /* Needs work for PerlIO ! */ |
2051 | FILE *f = PerlIO_findFILE(ptr); |
2052 | I32 result = pclose(f); |
2053 | PerlIO_releaseFILE(ptr,f); |
2054 | return result; |
a687059c |
2055 | } |
7c0587c8 |
2056 | #endif |
9f68db38 |
2057 | |
2058 | void |
2059 | repeatcpy(to,from,len,count) |
2060 | register char *to; |
2061 | register char *from; |
79072805 |
2062 | I32 len; |
2063 | register I32 count; |
9f68db38 |
2064 | { |
79072805 |
2065 | register I32 todo; |
9f68db38 |
2066 | register char *frombase = from; |
2067 | |
2068 | if (len == 1) { |
2069 | todo = *from; |
2070 | while (count-- > 0) |
2071 | *to++ = todo; |
2072 | return; |
2073 | } |
2074 | while (count-- > 0) { |
2075 | for (todo = len; todo > 0; todo--) { |
2076 | *to++ = *from++; |
2077 | } |
2078 | from = frombase; |
2079 | } |
2080 | } |
0f85fab0 |
2081 | |
2082 | #ifndef CASTNEGFLOAT |
463ee0b2 |
2083 | U32 |
79072805 |
2084 | cast_ulong(f) |
0f85fab0 |
2085 | double f; |
2086 | { |
2087 | long along; |
2088 | |
27e2fb84 |
2089 | #if CASTFLAGS & 2 |
34de22dd |
2090 | # define BIGDOUBLE 2147483648.0 |
2091 | if (f >= BIGDOUBLE) |
2092 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; |
2093 | #endif |
0f85fab0 |
2094 | if (f >= 0.0) |
2095 | return (unsigned long)f; |
2096 | along = (long)f; |
2097 | return (unsigned long)along; |
2098 | } |
ed6116ce |
2099 | # undef BIGDOUBLE |
2100 | #endif |
2101 | |
2102 | #ifndef CASTI32 |
5d94fbed |
2103 | |
5d94fbed |
2104 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2105 | work with the system-supplied definition of ULONG_MAX. The |
2106 | comparison (f >= ULONG_MAX) always comes out true. It must be a |
2107 | problem with the compiler constant folding. |
2108 | |
2109 | In any case, this workaround should be fine on any two's complement |
2110 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your |
2111 | ccflags. |
2112 | --Andy Dougherty <doughera@lafcol.lafayette.edu> |
2113 | */ |
1eb770ff |
2114 | |
2115 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead |
2116 | of LONG_(MIN/MAX). |
2117 | -- Kenneth Albanowski <kjahds@kjahds.com> |
2118 | */ |
2119 | |
20cec16a |
2120 | #ifndef MY_UV_MAX |
2121 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) |
5d94fbed |
2122 | #endif |
2123 | |
ed6116ce |
2124 | I32 |
2125 | cast_i32(f) |
2126 | double f; |
2127 | { |
20cec16a |
2128 | if (f >= I32_MAX) |
2129 | return (I32) I32_MAX; |
2130 | if (f <= I32_MIN) |
2131 | return (I32) I32_MIN; |
ed6116ce |
2132 | return (I32) f; |
2133 | } |
a0d0e21e |
2134 | |
2135 | IV |
2136 | cast_iv(f) |
2137 | double f; |
2138 | { |
20cec16a |
2139 | if (f >= IV_MAX) |
2140 | return (IV) IV_MAX; |
2141 | if (f <= IV_MIN) |
2142 | return (IV) IV_MIN; |
a0d0e21e |
2143 | return (IV) f; |
2144 | } |
5d94fbed |
2145 | |
2146 | UV |
2147 | cast_uv(f) |
2148 | double f; |
2149 | { |
20cec16a |
2150 | if (f >= MY_UV_MAX) |
2151 | return (UV) MY_UV_MAX; |
5d94fbed |
2152 | return (UV) f; |
2153 | } |
2154 | |
0f85fab0 |
2155 | #endif |
62b28dd9 |
2156 | |
fe14fcc3 |
2157 | #ifndef HAS_RENAME |
79072805 |
2158 | I32 |
62b28dd9 |
2159 | same_dirent(a,b) |
2160 | char *a; |
2161 | char *b; |
2162 | { |
93a17b20 |
2163 | char *fa = strrchr(a,'/'); |
2164 | char *fb = strrchr(b,'/'); |
62b28dd9 |
2165 | struct stat tmpstatbuf1; |
2166 | struct stat tmpstatbuf2; |
2167 | #ifndef MAXPATHLEN |
2168 | #define MAXPATHLEN 1024 |
2169 | #endif |
2170 | char tmpbuf[MAXPATHLEN+1]; |
2171 | |
2172 | if (fa) |
2173 | fa++; |
2174 | else |
2175 | fa = a; |
2176 | if (fb) |
2177 | fb++; |
2178 | else |
2179 | fb = b; |
2180 | if (strNE(a,b)) |
2181 | return FALSE; |
2182 | if (fa == a) |
6eb13c3b |
2183 | strcpy(tmpbuf,"."); |
62b28dd9 |
2184 | else |
2185 | strncpy(tmpbuf, a, fa - a); |
a0d0e21e |
2186 | if (Stat(tmpbuf, &tmpstatbuf1) < 0) |
62b28dd9 |
2187 | return FALSE; |
2188 | if (fb == b) |
6eb13c3b |
2189 | strcpy(tmpbuf,"."); |
62b28dd9 |
2190 | else |
2191 | strncpy(tmpbuf, b, fb - b); |
a0d0e21e |
2192 | if (Stat(tmpbuf, &tmpstatbuf2) < 0) |
62b28dd9 |
2193 | return FALSE; |
2194 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && |
2195 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; |
2196 | } |
fe14fcc3 |
2197 | #endif /* !HAS_RENAME */ |
2198 | |
55497cff |
2199 | UV |
79072805 |
2200 | scan_oct(start, len, retlen) |
fe14fcc3 |
2201 | char *start; |
79072805 |
2202 | I32 len; |
2203 | I32 *retlen; |
fe14fcc3 |
2204 | { |
2205 | register char *s = start; |
55497cff |
2206 | register UV retval = 0; |
2207 | bool overflowed = FALSE; |
fe14fcc3 |
2208 | |
748a9306 |
2209 | while (len && *s >= '0' && *s <= '7') { |
55497cff |
2210 | register UV n = retval << 3; |
2211 | if (!overflowed && (n >> 3) != retval) { |
2212 | warn("Integer overflow in octal number"); |
2213 | overflowed = TRUE; |
2214 | } |
2215 | retval = n | (*s++ - '0'); |
748a9306 |
2216 | len--; |
fe14fcc3 |
2217 | } |
748a9306 |
2218 | if (dowarn && len && (*s == '8' || *s == '9')) |
2219 | warn("Illegal octal digit ignored"); |
fe14fcc3 |
2220 | *retlen = s - start; |
2221 | return retval; |
2222 | } |
2223 | |
71be2cbc |
2224 | UV |
79072805 |
2225 | scan_hex(start, len, retlen) |
fe14fcc3 |
2226 | char *start; |
79072805 |
2227 | I32 len; |
2228 | I32 *retlen; |
fe14fcc3 |
2229 | { |
2230 | register char *s = start; |
55497cff |
2231 | register UV retval = 0; |
2232 | bool overflowed = FALSE; |
fe14fcc3 |
2233 | char *tmp; |
2234 | |
93a17b20 |
2235 | while (len-- && *s && (tmp = strchr(hexdigit, *s))) { |
55497cff |
2236 | register UV n = retval << 4; |
2237 | if (!overflowed && (n >> 4) != retval) { |
2238 | warn("Integer overflow in hex number"); |
2239 | overflowed = TRUE; |
2240 | } |
2241 | retval = n | (tmp - hexdigit) & 15; |
fe14fcc3 |
2242 | s++; |
2243 | } |
2244 | *retlen = s - start; |
2245 | return retval; |
2246 | } |
760ac839 |
2247 | |
2248 | |
2249 | #ifdef HUGE_VAL |
2250 | /* |
2251 | * This hack is to force load of "huge" support from libm.a |
2252 | * So it is in perl for (say) POSIX to use. |
2253 | * Needed for SunOS with Sun's 'acc' for example. |
2254 | */ |
2255 | double |
2256 | Perl_huge() |
2257 | { |
2258 | return HUGE_VAL; |
2259 | } |
2260 | #endif |