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 |
0b7c1c42 |
188 | size *= count; |
189 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
1050c9ca |
190 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
191 | DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
192 | #else |
760ac839 |
193 | DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
194 | #endif |
1050c9ca |
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 | |
21fc060b |
282 | /* copy a string up to some (non-backslashed) delimiter, if any; |
283 | If the delimiter is ';', then do not consider backslashes - |
284 | used only for PATH on DOSISH systems. */ |
8d063cd8 |
285 | |
286 | char * |
fc36a67e |
287 | delimcpy(to, toend, from, fromend, delim, retlen) |
62b28dd9 |
288 | register char *to; |
fc36a67e |
289 | register char *toend; |
62b28dd9 |
290 | register char *from; |
a687059c |
291 | register char *fromend; |
a0d0e21e |
292 | register int delim; |
79072805 |
293 | I32 *retlen; |
8d063cd8 |
294 | { |
fc36a67e |
295 | register I32 tolen; |
296 | for (tolen = 0; from < fromend; from++, tolen++) { |
21fc060b |
297 | if (*from == '\\' && delim != ';') { |
378cc40b |
298 | if (from[1] == delim) |
299 | from++; |
fc36a67e |
300 | else { |
301 | if (to < toend) |
302 | *to++ = *from; |
303 | tolen++; |
304 | from++; |
305 | } |
378cc40b |
306 | } |
bedebaa5 |
307 | else if (*from == delim) |
8d063cd8 |
308 | break; |
fc36a67e |
309 | if (to < toend) |
310 | *to++ = *from; |
8d063cd8 |
311 | } |
bedebaa5 |
312 | if (to < toend) |
313 | *to = '\0'; |
fc36a67e |
314 | *retlen = tolen; |
8d063cd8 |
315 | return from; |
316 | } |
317 | |
318 | /* return ptr to little string in big string, NULL if not found */ |
378cc40b |
319 | /* This routine was donated by Corey Satten. */ |
8d063cd8 |
320 | |
321 | char * |
322 | instr(big, little) |
378cc40b |
323 | register char *big; |
324 | register char *little; |
325 | { |
326 | register char *s, *x; |
79072805 |
327 | register I32 first; |
378cc40b |
328 | |
a687059c |
329 | if (!little) |
330 | return big; |
331 | first = *little++; |
378cc40b |
332 | if (!first) |
333 | return big; |
334 | while (*big) { |
335 | if (*big++ != first) |
336 | continue; |
337 | for (x=big,s=little; *s; /**/ ) { |
338 | if (!*x) |
339 | return Nullch; |
340 | if (*s++ != *x++) { |
341 | s--; |
342 | break; |
343 | } |
344 | } |
345 | if (!*s) |
346 | return big-1; |
347 | } |
348 | return Nullch; |
349 | } |
8d063cd8 |
350 | |
a687059c |
351 | /* same as instr but allow embedded nulls */ |
352 | |
353 | char * |
354 | ninstr(big, bigend, little, lend) |
355 | register char *big; |
356 | register char *bigend; |
357 | char *little; |
358 | char *lend; |
8d063cd8 |
359 | { |
a687059c |
360 | register char *s, *x; |
79072805 |
361 | register I32 first = *little; |
a687059c |
362 | register char *littleend = lend; |
378cc40b |
363 | |
a0d0e21e |
364 | if (!first && little >= littleend) |
a687059c |
365 | return big; |
de3bb511 |
366 | if (bigend - big < littleend - little) |
367 | return Nullch; |
a687059c |
368 | bigend -= littleend - little++; |
369 | while (big <= bigend) { |
370 | if (*big++ != first) |
371 | continue; |
372 | for (x=big,s=little; s < littleend; /**/ ) { |
373 | if (*s++ != *x++) { |
374 | s--; |
375 | break; |
376 | } |
377 | } |
378 | if (s >= littleend) |
379 | return big-1; |
378cc40b |
380 | } |
a687059c |
381 | return Nullch; |
382 | } |
383 | |
384 | /* reverse of the above--find last substring */ |
385 | |
386 | char * |
387 | rninstr(big, bigend, little, lend) |
388 | register char *big; |
389 | char *bigend; |
390 | char *little; |
391 | char *lend; |
392 | { |
393 | register char *bigbeg; |
394 | register char *s, *x; |
79072805 |
395 | register I32 first = *little; |
a687059c |
396 | register char *littleend = lend; |
397 | |
a0d0e21e |
398 | if (!first && little >= littleend) |
a687059c |
399 | return bigend; |
400 | bigbeg = big; |
401 | big = bigend - (littleend - little++); |
402 | while (big >= bigbeg) { |
403 | if (*big-- != first) |
404 | continue; |
405 | for (x=big+2,s=little; s < littleend; /**/ ) { |
406 | if (*s++ != *x++) { |
407 | s--; |
408 | break; |
409 | } |
410 | } |
411 | if (s >= littleend) |
412 | return big+1; |
378cc40b |
413 | } |
a687059c |
414 | return Nullch; |
378cc40b |
415 | } |
a687059c |
416 | |
bbce6d69 |
417 | /* |
418 | * Set up for a new ctype locale. |
419 | */ |
55497cff |
420 | void |
bbce6d69 |
421 | perl_new_ctype(newctype) |
422 | char *newctype; |
ef7eada9 |
423 | { |
36477c24 |
424 | #ifdef USE_LOCALE_CTYPE |
425 | |
bbce6d69 |
426 | int i; |
ef7eada9 |
427 | |
bbce6d69 |
428 | for (i = 0; i < 256; i++) { |
429 | if (isUPPER_LC(i)) |
430 | fold_locale[i] = toLOWER_LC(i); |
431 | else if (isLOWER_LC(i)) |
432 | fold_locale[i] = toUPPER_LC(i); |
433 | else |
434 | fold_locale[i] = i; |
435 | } |
bbce6d69 |
436 | |
36477c24 |
437 | #endif /* USE_LOCALE_CTYPE */ |
438 | } |
bbce6d69 |
439 | |
440 | /* |
441 | * Set up for a new collation locale. |
442 | */ |
443 | void |
444 | perl_new_collate(newcoll) |
445 | char *newcoll; |
446 | { |
36477c24 |
447 | #ifdef USE_LOCALE_COLLATE |
448 | |
bbce6d69 |
449 | if (! newcoll) { |
450 | if (collation_name) { |
451 | ++collation_ix; |
452 | Safefree(collation_name); |
453 | collation_name = NULL; |
454 | collation_standard = TRUE; |
bbce6d69 |
455 | collxfrm_base = 0; |
456 | collxfrm_mult = 2; |
bbce6d69 |
457 | } |
458 | return; |
459 | } |
460 | |
461 | if (! collation_name || strNE(collation_name, newcoll)) { |
462 | ++collation_ix; |
463 | Safefree(collation_name); |
464 | collation_name = savepv(newcoll); |
ff68c719 |
465 | collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); |
bbce6d69 |
466 | |
bbce6d69 |
467 | { |
468 | /* 2: at most so many chars ('a', 'b'). */ |
469 | /* 50: surely no system expands a char more. */ |
470 | #define XFRMBUFSIZE (2 * 50) |
471 | char xbuf[XFRMBUFSIZE]; |
472 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); |
473 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); |
474 | SSize_t mult = fb - fa; |
475 | if (mult < 1) |
476 | croak("strxfrm() gets absurd"); |
477 | collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
478 | collxfrm_mult = mult; |
479 | } |
bbce6d69 |
480 | } |
bbce6d69 |
481 | |
36477c24 |
482 | #endif /* USE_LOCALE_COLLATE */ |
483 | } |
bbce6d69 |
484 | |
485 | /* |
486 | * Set up for a new numeric locale. |
487 | */ |
488 | void |
489 | perl_new_numeric(newnum) |
490 | char *newnum; |
491 | { |
36477c24 |
492 | #ifdef USE_LOCALE_NUMERIC |
493 | |
bbce6d69 |
494 | if (! newnum) { |
495 | if (numeric_name) { |
496 | Safefree(numeric_name); |
497 | numeric_name = NULL; |
498 | numeric_standard = TRUE; |
499 | numeric_local = TRUE; |
500 | } |
501 | return; |
502 | } |
503 | |
504 | if (! numeric_name || strNE(numeric_name, newnum)) { |
505 | Safefree(numeric_name); |
506 | numeric_name = savepv(newnum); |
ff68c719 |
507 | numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
bbce6d69 |
508 | numeric_local = TRUE; |
509 | } |
36477c24 |
510 | |
511 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
512 | } |
513 | |
514 | void |
36477c24 |
515 | perl_set_numeric_standard() |
bbce6d69 |
516 | { |
5f05dabc |
517 | #ifdef USE_LOCALE_NUMERIC |
518 | |
bbce6d69 |
519 | if (! numeric_standard) { |
520 | setlocale(LC_NUMERIC, "C"); |
521 | numeric_standard = TRUE; |
522 | numeric_local = FALSE; |
523 | } |
5f05dabc |
524 | |
525 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
526 | } |
527 | |
528 | void |
36477c24 |
529 | perl_set_numeric_local() |
bbce6d69 |
530 | { |
5f05dabc |
531 | #ifdef USE_LOCALE_NUMERIC |
532 | |
bbce6d69 |
533 | if (! numeric_local) { |
534 | setlocale(LC_NUMERIC, numeric_name); |
535 | numeric_standard = FALSE; |
536 | numeric_local = TRUE; |
537 | } |
bbce6d69 |
538 | |
36477c24 |
539 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
540 | } |
36477c24 |
541 | |
bbce6d69 |
542 | |
36477c24 |
543 | /* |
544 | * Initialize locale awareness. |
545 | */ |
f0c5b223 |
546 | int |
1050c9ca |
547 | perl_init_i18nl10n(printwarn) |
f0c5b223 |
548 | int printwarn; |
549 | { |
550 | int ok = 1; |
551 | /* returns |
552 | * 1 = set ok or not applicable, |
553 | * 0 = fallback to C locale, |
554 | * -1 = fallback to C locale failed |
555 | */ |
bbce6d69 |
556 | |
36477c24 |
557 | #ifdef USE_LOCALE |
bbce6d69 |
558 | |
36477c24 |
559 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
560 | char *curctype = NULL; |
36477c24 |
561 | #endif /* USE_LOCALE_CTYPE */ |
562 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
563 | char *curcoll = NULL; |
36477c24 |
564 | #endif /* USE_LOCALE_COLLATE */ |
565 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
566 | char *curnum = NULL; |
36477c24 |
567 | #endif /* USE_LOCALE_NUMERIC */ |
02b32252 |
568 | char *lc_all = getenv("LC_ALL"); |
5f05dabc |
569 | char *lang = getenv("LANG"); |
bbce6d69 |
570 | bool setlocale_failure = FALSE; |
f0c5b223 |
571 | |
02b32252 |
572 | #ifdef LOCALE_ENVIRON_REQUIRED |
573 | |
574 | /* |
575 | * Ultrix setlocale(..., "") fails if there are no environment |
576 | * variables from which to get a locale name. |
577 | */ |
578 | |
579 | bool done = FALSE; |
580 | |
581 | #ifdef LC_ALL |
582 | if (lang) { |
583 | if (setlocale(LC_ALL, "")) |
584 | done = TRUE; |
585 | else |
586 | setlocale_failure = TRUE; |
587 | } |
588 | if (!setlocale_failure) |
589 | #endif /* LC_ALL */ |
590 | { |
591 | #ifdef USE_LOCALE_CTYPE |
592 | if (! (curctype = setlocale(LC_CTYPE, |
593 | (!done && (lang || getenv("LC_CTYPE"))) |
594 | ? "" : Nullch))) |
595 | setlocale_failure = TRUE; |
596 | #endif /* USE_LOCALE_CTYPE */ |
597 | #ifdef USE_LOCALE_COLLATE |
598 | if (! (curcoll = setlocale(LC_COLLATE, |
599 | (!done && (lang || getenv("LC_COLLATE"))) |
600 | ? "" : Nullch))) |
601 | setlocale_failure = TRUE; |
602 | #endif /* USE_LOCALE_COLLATE */ |
603 | #ifdef USE_LOCALE_NUMERIC |
604 | if (! (curnum = setlocale(LC_NUMERIC, |
605 | (!done && (lang || getenv("LC_NUMERIC"))) |
606 | ? "" : Nullch))) |
607 | setlocale_failure = TRUE; |
608 | #endif /* USE_LOCALE_NUMERIC */ |
609 | } |
610 | |
611 | #else /* !LOCALE_ENVIRON_REQUIRED */ |
612 | |
bbce6d69 |
613 | #ifdef LC_ALL |
5f05dabc |
614 | |
bbce6d69 |
615 | if (! setlocale(LC_ALL, "")) |
616 | setlocale_failure = TRUE; |
5f05dabc |
617 | else { |
618 | #ifdef USE_LOCALE_CTYPE |
619 | curctype = setlocale(LC_CTYPE, Nullch); |
620 | #endif /* USE_LOCALE_CTYPE */ |
621 | #ifdef USE_LOCALE_COLLATE |
622 | curcoll = setlocale(LC_COLLATE, Nullch); |
623 | #endif /* USE_LOCALE_COLLATE */ |
624 | #ifdef USE_LOCALE_NUMERIC |
625 | curnum = setlocale(LC_NUMERIC, Nullch); |
626 | #endif /* USE_LOCALE_NUMERIC */ |
627 | } |
628 | |
629 | #else /* !LC_ALL */ |
bbce6d69 |
630 | |
36477c24 |
631 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
632 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
bbce6d69 |
633 | setlocale_failure = TRUE; |
36477c24 |
634 | #endif /* USE_LOCALE_CTYPE */ |
635 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
636 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
bbce6d69 |
637 | setlocale_failure = TRUE; |
36477c24 |
638 | #endif /* USE_LOCALE_COLLATE */ |
639 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
640 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
bbce6d69 |
641 | setlocale_failure = TRUE; |
36477c24 |
642 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
643 | |
5f05dabc |
644 | #endif /* LC_ALL */ |
645 | |
02b32252 |
646 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
647 | |
5f05dabc |
648 | if (setlocale_failure) { |
649 | char *p; |
650 | bool locwarn = (printwarn > 1 || |
651 | printwarn && |
652 | (!(p = getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a |
653 | |
5f05dabc |
654 | if (locwarn) { |
655 | #ifdef LC_ALL |
656 | |
657 | PerlIO_printf(PerlIO_stderr(), |
658 | "perl: warning: Setting locale failed.\n"); |
659 | |
660 | #else /* !LC_ALL */ |
661 | |
ef7eada9 |
662 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
663 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 |
664 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
665 | if (! curctype) |
5f05dabc |
666 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 |
667 | #endif /* USE_LOCALE_CTYPE */ |
668 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
669 | if (! curcoll) |
5f05dabc |
670 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 |
671 | #endif /* USE_LOCALE_COLLATE */ |
672 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
673 | if (! curnum) |
5f05dabc |
674 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 |
675 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
676 | PerlIO_printf(PerlIO_stderr(), "\n"); |
677 | |
5f05dabc |
678 | #endif /* LC_ALL */ |
679 | |
760ac839 |
680 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
681 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 |
682 | |
683 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
684 | "\tLC_ALL = %c%s%c,\n", |
685 | lc_all ? '"' : '(', |
686 | lc_all ? lc_all : "unset", |
687 | lc_all ? '"' : ')'); |
5f05dabc |
688 | |
689 | { |
690 | char **e; |
691 | for (e = environ; *e; e++) { |
692 | if (strnEQ(*e, "LC_", 3) |
693 | && strnNE(*e, "LC_ALL=", 7) |
694 | && (p = strchr(*e, '='))) |
695 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", |
696 | (p - *e), *e, p + 1); |
697 | } |
698 | } |
699 | |
ef7eada9 |
700 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
701 | "\tLANG = %c%s%c\n", |
5f05dabc |
702 | lang ? '"' : '(', |
bbce6d69 |
703 | lang ? lang : "unset", |
704 | lang ? '"' : ')'); |
ef7eada9 |
705 | |
bbce6d69 |
706 | PerlIO_printf(PerlIO_stderr(), |
707 | " are supported and installed on your system.\n"); |
5f05dabc |
708 | } |
ef7eada9 |
709 | |
5f05dabc |
710 | #ifdef LC_ALL |
711 | |
712 | if (setlocale(LC_ALL, "C")) { |
713 | if (locwarn) |
714 | PerlIO_printf(PerlIO_stderr(), |
715 | "perl: warning: Falling back to the standard locale (\"C\").\n"); |
bbce6d69 |
716 | ok = 0; |
ef7eada9 |
717 | } |
5f05dabc |
718 | else { |
719 | if (locwarn) |
720 | PerlIO_printf(PerlIO_stderr(), |
721 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); |
722 | ok = -1; |
723 | } |
bbce6d69 |
724 | |
5f05dabc |
725 | #else /* ! LC_ALL */ |
726 | |
727 | if (0 |
36477c24 |
728 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
729 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 |
730 | #endif /* USE_LOCALE_CTYPE */ |
731 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
732 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 |
733 | #endif /* USE_LOCALE_COLLATE */ |
734 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
735 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 |
736 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
737 | ) |
738 | { |
739 | if (locwarn) |
bbce6d69 |
740 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc |
741 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
742 | ok = -1; |
bbce6d69 |
743 | } |
5f05dabc |
744 | |
bbce6d69 |
745 | #endif /* ! LC_ALL */ |
5f05dabc |
746 | |
747 | #ifdef USE_LOCALE_CTYPE |
748 | curctype = setlocale(LC_CTYPE, Nullch); |
749 | #endif /* USE_LOCALE_CTYPE */ |
750 | #ifdef USE_LOCALE_COLLATE |
751 | curcoll = setlocale(LC_COLLATE, Nullch); |
752 | #endif /* USE_LOCALE_COLLATE */ |
753 | #ifdef USE_LOCALE_NUMERIC |
754 | curnum = setlocale(LC_NUMERIC, Nullch); |
755 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
756 | } |
757 | |
36477c24 |
758 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
759 | perl_new_ctype(curctype); |
36477c24 |
760 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 |
761 | |
36477c24 |
762 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
763 | perl_new_collate(curcoll); |
36477c24 |
764 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
765 | |
36477c24 |
766 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
767 | perl_new_numeric(curnum); |
36477c24 |
768 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
769 | |
36477c24 |
770 | #endif /* USE_LOCALE */ |
ef7eada9 |
771 | |
f0c5b223 |
772 | return ok; |
773 | } |
774 | |
bbce6d69 |
775 | /* Backwards compatibility. */ |
776 | int |
777 | perl_init_i18nl14n(printwarn) |
778 | int printwarn; |
779 | { |
5f05dabc |
780 | return perl_init_i18nl10n(printwarn); |
bbce6d69 |
781 | } |
ef7eada9 |
782 | |
36477c24 |
783 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 |
784 | |
bbce6d69 |
785 | /* |
786 | * mem_collxfrm() is a bit like strxfrm() but with two important |
787 | * differences. First, it handles embedded NULs. Second, it allocates |
788 | * a bit more memory than needed for the transformed data itself. |
789 | * The real transformed data begins at offset sizeof(collationix). |
790 | * Please see sv_collxfrm() to see how this is used. |
791 | */ |
792 | char * |
793 | mem_collxfrm(s, len, xlen) |
794 | const char *s; |
795 | STRLEN len; |
796 | STRLEN *xlen; |
797 | { |
798 | char *xbuf; |
799 | STRLEN xalloc, xin, xout; |
800 | |
801 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ |
802 | /* the +1 is for the terminating NUL. */ |
803 | |
804 | xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1; |
805 | New(171, xbuf, xalloc, char); |
806 | if (! xbuf) |
807 | goto bad; |
808 | |
809 | *(U32*)xbuf = collation_ix; |
810 | xout = sizeof(collation_ix); |
811 | for (xin = 0; xin < len; ) { |
812 | SSize_t xused; |
813 | |
814 | for (;;) { |
815 | xused = strxfrm(xbuf + xout, s + xin, xalloc - xout); |
816 | if (xused == -1) |
817 | goto bad; |
818 | if (xused < xalloc - xout) |
819 | break; |
820 | xalloc = (2 * xalloc) + 1; |
821 | Renew(xbuf, xalloc, char); |
822 | if (! xbuf) |
823 | goto bad; |
824 | } |
ef7eada9 |
825 | |
bbce6d69 |
826 | xin += strlen(s + xin) + 1; |
827 | xout += xused; |
828 | |
829 | /* Embedded NULs are understood but silently skipped |
830 | * because they make no sense in locale collation. */ |
831 | } |
ef7eada9 |
832 | |
bbce6d69 |
833 | xbuf[xout] = '\0'; |
834 | *xlen = xout - sizeof(collation_ix); |
835 | return xbuf; |
836 | |
837 | bad: |
838 | Safefree(xbuf); |
839 | *xlen = 0; |
840 | return NULL; |
ef7eada9 |
841 | } |
842 | |
36477c24 |
843 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
844 | |
378cc40b |
845 | void |
bbce6d69 |
846 | fbm_compile(sv) |
79072805 |
847 | SV *sv; |
378cc40b |
848 | { |
a687059c |
849 | register unsigned char *s; |
850 | register unsigned char *table; |
79072805 |
851 | register U32 i; |
852 | register U32 len = SvCUR(sv); |
853 | I32 rarest = 0; |
854 | U32 frequency = 256; |
855 | |
748a9306 |
856 | if (len > 255) |
857 | return; /* can't have offsets that big */ |
79072805 |
858 | Sv_Grow(sv,len+258); |
463ee0b2 |
859 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
a687059c |
860 | s = table - 2; |
861 | for (i = 0; i < 256; i++) { |
378cc40b |
862 | table[i] = len; |
863 | } |
864 | i = 0; |
463ee0b2 |
865 | while (s >= (unsigned char*)(SvPVX(sv))) |
a687059c |
866 | { |
bbce6d69 |
867 | if (table[*s] == len) |
868 | table[*s] = i; |
378cc40b |
869 | s--,i++; |
870 | } |
79072805 |
871 | sv_upgrade(sv, SVt_PVBM); |
bbce6d69 |
872 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 |
873 | SvVALID_on(sv); |
378cc40b |
874 | |
463ee0b2 |
875 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 |
876 | for (i = 0; i < len; i++) { |
877 | if (freq[s[i]] < frequency) { |
878 | rarest = i; |
879 | frequency = freq[s[i]]; |
378cc40b |
880 | } |
881 | } |
79072805 |
882 | BmRARE(sv) = s[rarest]; |
883 | BmPREVIOUS(sv) = rarest; |
760ac839 |
884 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b |
885 | } |
886 | |
378cc40b |
887 | char * |
79072805 |
888 | fbm_instr(big, bigend, littlestr) |
a687059c |
889 | unsigned char *big; |
890 | register unsigned char *bigend; |
79072805 |
891 | SV *littlestr; |
378cc40b |
892 | { |
a687059c |
893 | register unsigned char *s; |
79072805 |
894 | register I32 tmp; |
895 | register I32 littlelen; |
a687059c |
896 | register unsigned char *little; |
897 | register unsigned char *table; |
898 | register unsigned char *olds; |
899 | register unsigned char *oldlittle; |
378cc40b |
900 | |
79072805 |
901 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e |
902 | STRLEN len; |
903 | char *l = SvPV(littlestr,len); |
904 | if (!len) |
d48672a2 |
905 | return (char*)big; |
a0d0e21e |
906 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 |
907 | } |
378cc40b |
908 | |
79072805 |
909 | littlelen = SvCUR(littlestr); |
910 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
0f85fab0 |
911 | if (littlelen > bigend - big) |
912 | return Nullch; |
463ee0b2 |
913 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 |
914 | s = bigend - littlelen; |
36477c24 |
915 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 |
916 | return (char*)s; /* how sweet it is */ |
917 | else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' |
918 | && s > big) { |
919 | s--; |
36477c24 |
920 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 |
921 | return (char*)s; |
a687059c |
922 | } |
bbce6d69 |
923 | return Nullch; |
a687059c |
924 | } |
463ee0b2 |
925 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 |
926 | if (--littlelen >= bigend - big) |
927 | return Nullch; |
928 | s = big + littlelen; |
a687059c |
929 | oldlittle = little = table - 2; |
bbce6d69 |
930 | if (s < bigend) { |
931 | top2: |
932 | /*SUPPRESS 560*/ |
933 | if (tmp = table[*s]) { |
62b28dd9 |
934 | #ifdef POINTERRIGOR |
bbce6d69 |
935 | if (bigend - s > tmp) { |
936 | s += tmp; |
937 | goto top2; |
938 | } |
62b28dd9 |
939 | #else |
bbce6d69 |
940 | if ((s += tmp) < bigend) |
941 | goto top2; |
62b28dd9 |
942 | #endif |
bbce6d69 |
943 | return Nullch; |
a687059c |
944 | } |
bbce6d69 |
945 | else { |
946 | tmp = littlelen; /* less expensive than calling strncmp() */ |
947 | olds = s; |
948 | while (tmp--) { |
949 | if (*--s == *--little) |
950 | continue; |
951 | s = olds + 1; /* here we pay the price for failure */ |
952 | little = oldlittle; |
953 | if (s < bigend) /* fake up continue to outer loop */ |
62b28dd9 |
954 | goto top2; |
62b28dd9 |
955 | return Nullch; |
a687059c |
956 | } |
bbce6d69 |
957 | return (char *)s; |
378cc40b |
958 | } |
959 | } |
960 | return Nullch; |
961 | } |
962 | |
963 | char * |
964 | screaminstr(bigstr, littlestr) |
79072805 |
965 | SV *bigstr; |
966 | SV *littlestr; |
378cc40b |
967 | { |
a687059c |
968 | register unsigned char *s, *x; |
969 | register unsigned char *big; |
79072805 |
970 | register I32 pos; |
971 | register I32 previous; |
972 | register I32 first; |
a687059c |
973 | register unsigned char *little; |
974 | register unsigned char *bigend; |
975 | register unsigned char *littleend; |
378cc40b |
976 | |
79072805 |
977 | if ((pos = screamfirst[BmRARE(littlestr)]) < 0) |
378cc40b |
978 | return Nullch; |
463ee0b2 |
979 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 |
980 | littleend = little + SvCUR(littlestr); |
378cc40b |
981 | first = *little++; |
79072805 |
982 | previous = BmPREVIOUS(littlestr); |
463ee0b2 |
983 | big = (unsigned char *)(SvPVX(bigstr)); |
79072805 |
984 | bigend = big + SvCUR(bigstr); |
378cc40b |
985 | while (pos < previous) { |
986 | if (!(pos += screamnext[pos])) |
987 | return Nullch; |
988 | } |
de3bb511 |
989 | #ifdef POINTERRIGOR |
bbce6d69 |
990 | do { |
991 | if (big[pos-previous] != first) |
992 | continue; |
993 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
994 | if (x >= bigend) |
995 | return Nullch; |
996 | if (*s++ != *x++) { |
997 | s--; |
998 | break; |
de3bb511 |
999 | } |
bbce6d69 |
1000 | } |
1001 | if (s == littleend) |
1002 | return (char *)(big+pos-previous); |
1003 | } while ( pos += screamnext[pos] ); |
de3bb511 |
1004 | #else /* !POINTERRIGOR */ |
1005 | big -= previous; |
bbce6d69 |
1006 | do { |
1007 | if (big[pos] != first) |
1008 | continue; |
1009 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
1010 | if (x >= bigend) |
1011 | return Nullch; |
1012 | if (*s++ != *x++) { |
1013 | s--; |
1014 | break; |
378cc40b |
1015 | } |
bbce6d69 |
1016 | } |
1017 | if (s == littleend) |
1018 | return (char *)(big+pos); |
1019 | } while ( pos += screamnext[pos] ); |
de3bb511 |
1020 | #endif /* POINTERRIGOR */ |
8d063cd8 |
1021 | return Nullch; |
1022 | } |
1023 | |
79072805 |
1024 | I32 |
bbce6d69 |
1025 | ibcmp(s1, s2, len) |
1026 | char *s1, *s2; |
79072805 |
1027 | register I32 len; |
1028 | { |
bbce6d69 |
1029 | register U8 *a = (U8 *)s1; |
1030 | register U8 *b = (U8 *)s2; |
79072805 |
1031 | while (len--) { |
bbce6d69 |
1032 | if (*a != *b && *a != fold[*b]) |
1033 | return 1; |
1034 | a++,b++; |
1035 | } |
1036 | return 0; |
1037 | } |
1038 | |
1039 | I32 |
1040 | ibcmp_locale(s1, s2, len) |
1041 | char *s1, *s2; |
1042 | register I32 len; |
1043 | { |
1044 | register U8 *a = (U8 *)s1; |
1045 | register U8 *b = (U8 *)s2; |
1046 | while (len--) { |
1047 | if (*a != *b && *a != fold_locale[*b]) |
1048 | return 1; |
1049 | a++,b++; |
79072805 |
1050 | } |
1051 | return 0; |
1052 | } |
1053 | |
8d063cd8 |
1054 | /* copy a string to a safe spot */ |
1055 | |
1056 | char * |
a0d0e21e |
1057 | savepv(sv) |
79072805 |
1058 | char *sv; |
8d063cd8 |
1059 | { |
a687059c |
1060 | register char *newaddr; |
8d063cd8 |
1061 | |
79072805 |
1062 | New(902,newaddr,strlen(sv)+1,char); |
1063 | (void)strcpy(newaddr,sv); |
8d063cd8 |
1064 | return newaddr; |
1065 | } |
1066 | |
a687059c |
1067 | /* same thing but with a known length */ |
1068 | |
1069 | char * |
a0d0e21e |
1070 | savepvn(sv, len) |
79072805 |
1071 | char *sv; |
1072 | register I32 len; |
a687059c |
1073 | { |
1074 | register char *newaddr; |
1075 | |
1076 | New(903,newaddr,len+1,char); |
79072805 |
1077 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c |
1078 | newaddr[len] = '\0'; /* is now */ |
1079 | return newaddr; |
1080 | } |
1081 | |
fc36a67e |
1082 | /* the SV for form() and mess() is not kept in an arena */ |
1083 | |
1084 | static SV * |
1085 | mess_alloc() |
1086 | { |
1087 | SV *sv; |
1088 | XPVMG *any; |
1089 | |
1090 | /* Create as PVMG now, to avoid any upgrading later */ |
1091 | New(905, sv, 1, SV); |
1092 | Newz(905, any, 1, XPVMG); |
1093 | SvFLAGS(sv) = SVt_PVMG; |
1094 | SvANY(sv) = (void*)any; |
1095 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ |
1096 | return sv; |
1097 | } |
1098 | |
a0d0e21e |
1099 | #ifdef I_STDARG |
8990e307 |
1100 | char * |
46fc3d4c |
1101 | form(const char* pat, ...) |
a687059c |
1102 | #else |
1103 | /*VARARGS0*/ |
de3bb511 |
1104 | char * |
46fc3d4c |
1105 | form(pat, va_alist) |
71be2cbc |
1106 | const char *pat; |
46fc3d4c |
1107 | va_dcl |
8990e307 |
1108 | #endif |
1109 | { |
46fc3d4c |
1110 | va_list args; |
1111 | #ifdef I_STDARG |
1112 | va_start(args, pat); |
a687059c |
1113 | #else |
46fc3d4c |
1114 | va_start(args); |
d48672a2 |
1115 | #endif |
fc36a67e |
1116 | if (!mess_sv) |
1117 | mess_sv = mess_alloc(); |
1118 | sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c |
1119 | va_end(args); |
fc36a67e |
1120 | return SvPVX(mess_sv); |
46fc3d4c |
1121 | } |
a687059c |
1122 | |
46fc3d4c |
1123 | char * |
1124 | mess(pat, args) |
1125 | const char *pat; |
1126 | va_list *args; |
1127 | { |
1128 | SV *sv; |
1129 | static char dgd[] = " during global destruction.\n"; |
1130 | |
46fc3d4c |
1131 | if (!mess_sv) |
fc36a67e |
1132 | mess_sv = mess_alloc(); |
46fc3d4c |
1133 | sv = mess_sv; |
fc36a67e |
1134 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c |
1135 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
2304df62 |
1136 | if (dirty) |
46fc3d4c |
1137 | sv_catpv(sv, dgd); |
2304df62 |
1138 | else { |
46fc3d4c |
1139 | if (curcop->cop_line) |
fc36a67e |
1140 | sv_catpvf(sv, " at %_ line %ld", |
46fc3d4c |
1141 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
c07a80fd |
1142 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
1143 | bool line_mode = (RsSIMPLE(rs) && |
1144 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); |
46fc3d4c |
1145 | sv_catpvf(sv, ", <%s> %s %ld", |
1146 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), |
1147 | line_mode ? "line" : "chunk", |
1148 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 |
1149 | } |
46fc3d4c |
1150 | sv_catpv(sv, ".\n"); |
a687059c |
1151 | } |
a687059c |
1152 | } |
46fc3d4c |
1153 | return SvPVX(sv); |
a687059c |
1154 | } |
1155 | |
ecfc5424 |
1156 | #ifdef I_STDARG |
36477c24 |
1157 | OP * |
71be2cbc |
1158 | die(const char* pat, ...) |
36477c24 |
1159 | #else |
1160 | /*VARARGS0*/ |
1161 | OP * |
1162 | die(pat, va_alist) |
71be2cbc |
1163 | const char *pat; |
36477c24 |
1164 | va_dcl |
1165 | #endif |
1166 | { |
1167 | va_list args; |
1168 | char *message; |
035902c7 |
1169 | I32 oldrunlevel = runlevel; |
36477c24 |
1170 | int was_in_eval = in_eval; |
1171 | HV *stash; |
1172 | GV *gv; |
1173 | CV *cv; |
1174 | |
1175 | /* We have to switch back to mainstack or die_where may try to pop |
1176 | * the eval block from the wrong stack if die is being called from a |
1177 | * signal handler. - dkindred@cs.cmu.edu */ |
1178 | if (curstack != mainstack) { |
1179 | dSP; |
1180 | SWITCHSTACK(curstack, mainstack); |
1181 | } |
1182 | |
1183 | #ifdef I_STDARG |
1184 | va_start(args, pat); |
1185 | #else |
1186 | va_start(args); |
1187 | #endif |
1188 | message = mess(pat, &args); |
1189 | va_end(args); |
1190 | |
1738f5c4 |
1191 | if (diehook) { |
1192 | /* sv_2cv might call croak() */ |
1193 | SV *olddiehook = diehook; |
1194 | ENTER; |
1195 | SAVESPTR(diehook); |
1196 | diehook = Nullsv; |
1197 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1198 | LEAVE; |
1199 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
1200 | dSP; |
774d564b |
1201 | SV *msg; |
1202 | |
1203 | ENTER; |
1204 | msg = newSVpv(message, 0); |
1205 | SvREADONLY_on(msg); |
1206 | SAVEFREESV(msg); |
1738f5c4 |
1207 | |
1208 | PUSHMARK(sp); |
1209 | XPUSHs(msg); |
1210 | PUTBACK; |
1211 | perl_call_sv((SV*)cv, G_DISCARD); |
1212 | |
774d564b |
1213 | LEAVE; |
1738f5c4 |
1214 | } |
36477c24 |
1215 | } |
1216 | |
1217 | restartop = die_where(message); |
1218 | if ((!restartop && was_in_eval) || oldrunlevel > 1) |
54310121 |
1219 | JMPENV_JUMP(3); |
36477c24 |
1220 | return restartop; |
1221 | } |
1222 | |
1223 | #ifdef I_STDARG |
79072805 |
1224 | void |
71be2cbc |
1225 | croak(const char* pat, ...) |
463ee0b2 |
1226 | #else |
8990e307 |
1227 | /*VARARGS0*/ |
1228 | void |
1229 | croak(pat, va_alist) |
1230 | char *pat; |
1231 | va_dcl |
463ee0b2 |
1232 | #endif |
a687059c |
1233 | { |
1234 | va_list args; |
de3bb511 |
1235 | char *message; |
748a9306 |
1236 | HV *stash; |
1237 | GV *gv; |
1238 | CV *cv; |
a687059c |
1239 | |
a0d0e21e |
1240 | #ifdef I_STDARG |
8990e307 |
1241 | va_start(args, pat); |
1242 | #else |
a687059c |
1243 | va_start(args); |
8990e307 |
1244 | #endif |
2304df62 |
1245 | message = mess(pat, &args); |
a687059c |
1246 | va_end(args); |
20cec16a |
1247 | if (diehook) { |
1738f5c4 |
1248 | /* sv_2cv might call croak() */ |
20cec16a |
1249 | SV *olddiehook = diehook; |
1738f5c4 |
1250 | ENTER; |
1251 | SAVESPTR(diehook); |
1252 | diehook = Nullsv; |
20cec16a |
1253 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 |
1254 | LEAVE; |
1255 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1256 | dSP; |
774d564b |
1257 | SV *msg; |
1258 | |
1259 | ENTER; |
1260 | msg = newSVpv(message, 0); |
1261 | SvREADONLY_on(msg); |
1262 | SAVEFREESV(msg); |
20cec16a |
1263 | |
1264 | PUSHMARK(sp); |
1738f5c4 |
1265 | XPUSHs(msg); |
20cec16a |
1266 | PUTBACK; |
1267 | perl_call_sv((SV*)cv, G_DISCARD); |
36477c24 |
1268 | |
774d564b |
1269 | LEAVE; |
20cec16a |
1270 | } |
748a9306 |
1271 | } |
a0d0e21e |
1272 | if (in_eval) { |
1273 | restartop = die_where(message); |
54310121 |
1274 | JMPENV_JUMP(3); |
a0d0e21e |
1275 | } |
760ac839 |
1276 | PerlIO_puts(PerlIO_stderr(),message); |
1277 | (void)PerlIO_flush(PerlIO_stderr()); |
f86702cc |
1278 | my_failure_exit(); |
a687059c |
1279 | } |
1280 | |
8990e307 |
1281 | void |
ecfc5424 |
1282 | #ifdef I_STDARG |
71be2cbc |
1283 | warn(const char* pat,...) |
463ee0b2 |
1284 | #else |
8990e307 |
1285 | /*VARARGS0*/ |
1286 | warn(pat,va_alist) |
71be2cbc |
1287 | const char *pat; |
8990e307 |
1288 | va_dcl |
463ee0b2 |
1289 | #endif |
a687059c |
1290 | { |
1291 | va_list args; |
de3bb511 |
1292 | char *message; |
748a9306 |
1293 | HV *stash; |
1294 | GV *gv; |
1295 | CV *cv; |
a687059c |
1296 | |
a0d0e21e |
1297 | #ifdef I_STDARG |
8990e307 |
1298 | va_start(args, pat); |
1299 | #else |
a687059c |
1300 | va_start(args); |
8990e307 |
1301 | #endif |
2304df62 |
1302 | message = mess(pat, &args); |
a687059c |
1303 | va_end(args); |
1304 | |
20cec16a |
1305 | if (warnhook) { |
1738f5c4 |
1306 | /* sv_2cv might call warn() */ |
20cec16a |
1307 | SV *oldwarnhook = warnhook; |
1738f5c4 |
1308 | ENTER; |
1309 | SAVESPTR(warnhook); |
1310 | warnhook = Nullsv; |
20cec16a |
1311 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 |
1312 | LEAVE; |
1313 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1314 | dSP; |
774d564b |
1315 | SV *msg; |
1316 | |
1317 | ENTER; |
1318 | msg = newSVpv(message, 0); |
1319 | SvREADONLY_on(msg); |
1320 | SAVEFREESV(msg); |
1321 | |
20cec16a |
1322 | PUSHMARK(sp); |
774d564b |
1323 | XPUSHs(msg); |
20cec16a |
1324 | PUTBACK; |
1325 | perl_call_sv((SV*)cv, G_DISCARD); |
774d564b |
1326 | |
1327 | LEAVE; |
20cec16a |
1328 | return; |
1329 | } |
748a9306 |
1330 | } |
20cec16a |
1331 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c |
1332 | #ifdef LEAKTEST |
20cec16a |
1333 | DEBUG_L(xstat()); |
a687059c |
1334 | #endif |
20cec16a |
1335 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c |
1336 | } |
8d063cd8 |
1337 | |
a0d0e21e |
1338 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
3e3baf6d |
1339 | #ifndef WIN32 |
8d063cd8 |
1340 | void |
7c0587c8 |
1341 | my_setenv(nam,val) |
8d063cd8 |
1342 | char *nam, *val; |
1343 | { |
79072805 |
1344 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 |
1345 | |
fe14fcc3 |
1346 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 |
1347 | I32 j; |
1348 | I32 max; |
fe14fcc3 |
1349 | char **tmpenv; |
1350 | |
de3bb511 |
1351 | /*SUPPRESS 530*/ |
fe14fcc3 |
1352 | for (max = i; environ[max]; max++) ; |
1353 | New(901,tmpenv, max+2, char*); |
1354 | for (j=0; j<max; j++) /* copy environment */ |
a0d0e21e |
1355 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 |
1356 | tmpenv[max] = Nullch; |
1357 | environ = tmpenv; /* tell exec where it is now */ |
1358 | } |
a687059c |
1359 | if (!val) { |
e5ebf479 |
1360 | Safefree(environ[i]); |
a687059c |
1361 | while (environ[i]) { |
1362 | environ[i] = environ[i+1]; |
1363 | i++; |
1364 | } |
1365 | return; |
1366 | } |
8d063cd8 |
1367 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 |
1368 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 |
1369 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1370 | } |
fe14fcc3 |
1371 | else |
1372 | Safefree(environ[i]); |
a687059c |
1373 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 |
1374 | #ifndef MSDOS |
a687059c |
1375 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 |
1376 | #else |
1377 | /* MS-DOS requires environment variable names to be in uppercase */ |
fe14fcc3 |
1378 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1379 | * some utilities and applications may break because they only look |
1380 | * for upper case strings. (Fixed strupr() bug here.)] |
1381 | */ |
1382 | strcpy(environ[i],nam); strupr(environ[i]); |
62b28dd9 |
1383 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1384 | #endif /* MSDOS */ |
8d063cd8 |
1385 | } |
1386 | |
3e3baf6d |
1387 | #else /* if WIN32 */ |
68dc0745 |
1388 | |
1389 | void |
1390 | my_setenv(nam,val) |
1391 | char *nam, *val; |
1392 | { |
3e3baf6d |
1393 | |
1394 | #ifdef USE_WIN32_RTL_ENV |
1395 | |
68dc0745 |
1396 | register char *envstr; |
1397 | STRLEN namlen = strlen(nam); |
3e3baf6d |
1398 | STRLEN vallen; |
1399 | char *oldstr = environ[setenv_getix(nam)]; |
1400 | |
1401 | /* putenv() has totally broken semantics in both the Borland |
1402 | * and Microsoft CRTLs. They either store the passed pointer in |
1403 | * the environment without making a copy, or make a copy and don't |
1404 | * free it. And on top of that, they dont free() old entries that |
1405 | * are being replaced/deleted. This means the caller must |
1406 | * free any old entries somehow, or we end up with a memory |
1407 | * leak every time my_setenv() is called. One might think |
1408 | * one could directly manipulate environ[], like the UNIX code |
1409 | * above, but direct changes to environ are not allowed when |
1410 | * calling putenv(), since the RTLs maintain an internal |
1411 | * *copy* of environ[]. Bad, bad, *bad* stink. |
1412 | * GSAR 97-06-07 |
1413 | */ |
68dc0745 |
1414 | |
3e3baf6d |
1415 | if (!val) { |
1416 | if (!oldstr) |
1417 | return; |
1418 | val = ""; |
1419 | vallen = 0; |
1420 | } |
1421 | else |
1422 | vallen = strlen(val); |
fc36a67e |
1423 | New(904, envstr, namlen + vallen + 3, char); |
68dc0745 |
1424 | (void)sprintf(envstr,"%s=%s",nam,val); |
3e3baf6d |
1425 | (void)putenv(envstr); |
1426 | if (oldstr) |
1427 | Safefree(oldstr); |
1428 | #ifdef _MSC_VER |
1429 | Safefree(envstr); /* MSVCRT leaks without this */ |
1430 | #endif |
1431 | |
1432 | #else /* !USE_WIN32_RTL_ENV */ |
1433 | |
1434 | /* The sane way to deal with the environment. |
1435 | * Has these advantages over putenv() & co.: |
1436 | * * enables us to store a truly empty value in the |
1437 | * environment (like in UNIX). |
1438 | * * we don't have to deal with RTL globals, bugs and leaks. |
1439 | * * Much faster. |
1440 | * Why you may want to enable USE_WIN32_RTL_ENV: |
1441 | * * environ[] and RTL functions will not reflect changes, |
1442 | * which might be an issue if extensions want to access |
1443 | * the env. via RTL. This cuts both ways, since RTL will |
1444 | * not see changes made by extensions that call the Win32 |
1445 | * functions directly, either. |
1446 | * GSAR 97-06-07 |
1447 | */ |
1448 | SetEnvironmentVariable(nam,val); |
1449 | |
1450 | #endif |
1451 | } |
1452 | |
1453 | #endif /* WIN32 */ |
1454 | |
1455 | I32 |
1456 | setenv_getix(nam) |
1457 | char *nam; |
1458 | { |
1459 | register I32 i, len = strlen(nam); |
1460 | |
1461 | for (i = 0; environ[i]; i++) { |
1462 | if ( |
1463 | #ifdef WIN32 |
1464 | strnicmp(environ[i],nam,len) == 0 |
1465 | #else |
1466 | strnEQ(environ[i],nam,len) |
1467 | #endif |
1468 | && environ[i][len] == '=') |
1469 | break; /* strnEQ must come first to avoid */ |
1470 | } /* potential SEGV's */ |
1471 | return i; |
68dc0745 |
1472 | } |
1473 | |
a0d0e21e |
1474 | #endif /* !VMS */ |
378cc40b |
1475 | |
16d20bd9 |
1476 | #ifdef UNLINK_ALL_VERSIONS |
79072805 |
1477 | I32 |
378cc40b |
1478 | unlnk(f) /* unlink all versions of a file */ |
1479 | char *f; |
1480 | { |
79072805 |
1481 | I32 i; |
378cc40b |
1482 | |
1483 | for (i = 0; unlink(f) >= 0; i++) ; |
1484 | return i ? 0 : -1; |
1485 | } |
1486 | #endif |
1487 | |
85e6fe83 |
1488 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b |
1489 | char * |
7c0587c8 |
1490 | my_bcopy(from,to,len) |
378cc40b |
1491 | register char *from; |
1492 | register char *to; |
79072805 |
1493 | register I32 len; |
378cc40b |
1494 | { |
1495 | char *retval = to; |
1496 | |
7c0587c8 |
1497 | if (from - to >= 0) { |
1498 | while (len--) |
1499 | *to++ = *from++; |
1500 | } |
1501 | else { |
1502 | to += len; |
1503 | from += len; |
1504 | while (len--) |
faf8582f |
1505 | *(--to) = *(--from); |
7c0587c8 |
1506 | } |
378cc40b |
1507 | return retval; |
1508 | } |
ffed7fef |
1509 | #endif |
378cc40b |
1510 | |
fc36a67e |
1511 | #ifndef HAS_MEMSET |
1512 | void * |
1513 | my_memset(loc,ch,len) |
1514 | register char *loc; |
1515 | register I32 ch; |
1516 | register I32 len; |
1517 | { |
1518 | char *retval = loc; |
1519 | |
1520 | while (len--) |
1521 | *loc++ = ch; |
1522 | return retval; |
1523 | } |
1524 | #endif |
1525 | |
7c0587c8 |
1526 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b |
1527 | char * |
7c0587c8 |
1528 | my_bzero(loc,len) |
378cc40b |
1529 | register char *loc; |
79072805 |
1530 | register I32 len; |
378cc40b |
1531 | { |
1532 | char *retval = loc; |
1533 | |
1534 | while (len--) |
1535 | *loc++ = 0; |
1536 | return retval; |
1537 | } |
1538 | #endif |
7c0587c8 |
1539 | |
36477c24 |
1540 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 |
1541 | I32 |
7c0587c8 |
1542 | my_memcmp(s1,s2,len) |
36477c24 |
1543 | char *s1; |
1544 | char *s2; |
79072805 |
1545 | register I32 len; |
7c0587c8 |
1546 | { |
36477c24 |
1547 | register U8 *a = (U8 *)s1; |
1548 | register U8 *b = (U8 *)s2; |
79072805 |
1549 | register I32 tmp; |
7c0587c8 |
1550 | |
1551 | while (len--) { |
36477c24 |
1552 | if (tmp = *a++ - *b++) |
7c0587c8 |
1553 | return tmp; |
1554 | } |
1555 | return 0; |
1556 | } |
36477c24 |
1557 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c |
1558 | |
4633a7c4 |
1559 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 |
1560 | #ifndef HAS_VPRINTF |
a687059c |
1561 | |
85e6fe83 |
1562 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1563 | char * |
1564 | #else |
1565 | int |
1566 | #endif |
1567 | vsprintf(dest, pat, args) |
71be2cbc |
1568 | char *dest; |
1569 | const char *pat; |
1570 | char *args; |
a687059c |
1571 | { |
1572 | FILE fakebuf; |
1573 | |
1574 | fakebuf._ptr = dest; |
1575 | fakebuf._cnt = 32767; |
35c8bce7 |
1576 | #ifndef _IOSTRG |
1577 | #define _IOSTRG 0 |
1578 | #endif |
a687059c |
1579 | fakebuf._flag = _IOWRT|_IOSTRG; |
1580 | _doprnt(pat, args, &fakebuf); /* what a kludge */ |
1581 | (void)putc('\0', &fakebuf); |
85e6fe83 |
1582 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1583 | return(dest); |
1584 | #else |
1585 | return 0; /* perl doesn't use return value */ |
1586 | #endif |
1587 | } |
1588 | |
fe14fcc3 |
1589 | #endif /* HAS_VPRINTF */ |
4633a7c4 |
1590 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c |
1591 | |
1592 | #ifdef MYSWAP |
ffed7fef |
1593 | #if BYTEORDER != 0x4321 |
a687059c |
1594 | short |
748a9306 |
1595 | #ifndef CAN_PROTOTYPE |
a687059c |
1596 | my_swap(s) |
1597 | short s; |
748a9306 |
1598 | #else |
1599 | my_swap(short s) |
1600 | #endif |
a687059c |
1601 | { |
1602 | #if (BYTEORDER & 1) == 0 |
1603 | short result; |
1604 | |
1605 | result = ((s & 255) << 8) + ((s >> 8) & 255); |
1606 | return result; |
1607 | #else |
1608 | return s; |
1609 | #endif |
1610 | } |
1611 | |
1612 | long |
748a9306 |
1613 | #ifndef CAN_PROTOTYPE |
1614 | my_htonl(l) |
a687059c |
1615 | register long l; |
748a9306 |
1616 | #else |
1617 | my_htonl(long l) |
1618 | #endif |
a687059c |
1619 | { |
1620 | union { |
1621 | long result; |
ffed7fef |
1622 | char c[sizeof(long)]; |
a687059c |
1623 | } u; |
1624 | |
ffed7fef |
1625 | #if BYTEORDER == 0x1234 |
a687059c |
1626 | u.c[0] = (l >> 24) & 255; |
1627 | u.c[1] = (l >> 16) & 255; |
1628 | u.c[2] = (l >> 8) & 255; |
1629 | u.c[3] = l & 255; |
1630 | return u.result; |
1631 | #else |
ffed7fef |
1632 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1633 | croak("Unknown BYTEORDER\n"); |
a687059c |
1634 | #else |
79072805 |
1635 | register I32 o; |
1636 | register I32 s; |
a687059c |
1637 | |
ffed7fef |
1638 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1639 | u.c[o & 0xf] = (l >> s) & 255; |
a687059c |
1640 | } |
1641 | return u.result; |
1642 | #endif |
1643 | #endif |
1644 | } |
1645 | |
1646 | long |
748a9306 |
1647 | #ifndef CAN_PROTOTYPE |
1648 | my_ntohl(l) |
a687059c |
1649 | register long l; |
748a9306 |
1650 | #else |
1651 | my_ntohl(long l) |
1652 | #endif |
a687059c |
1653 | { |
1654 | union { |
1655 | long l; |
ffed7fef |
1656 | char c[sizeof(long)]; |
a687059c |
1657 | } u; |
1658 | |
ffed7fef |
1659 | #if BYTEORDER == 0x1234 |
a687059c |
1660 | u.c[0] = (l >> 24) & 255; |
1661 | u.c[1] = (l >> 16) & 255; |
1662 | u.c[2] = (l >> 8) & 255; |
1663 | u.c[3] = l & 255; |
1664 | return u.l; |
1665 | #else |
ffed7fef |
1666 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1667 | croak("Unknown BYTEORDER\n"); |
a687059c |
1668 | #else |
79072805 |
1669 | register I32 o; |
1670 | register I32 s; |
a687059c |
1671 | |
1672 | u.l = l; |
1673 | l = 0; |
ffed7fef |
1674 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1675 | l |= (u.c[o & 0xf] & 255) << s; |
a687059c |
1676 | } |
1677 | return l; |
1678 | #endif |
1679 | #endif |
1680 | } |
1681 | |
ffed7fef |
1682 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 |
1683 | #endif /* MYSWAP */ |
1684 | |
1685 | /* |
1686 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. |
1687 | * If these functions are defined, |
1688 | * the BYTEORDER is neither 0x1234 nor 0x4321. |
1689 | * However, this is not assumed. |
1690 | * -DWS |
1691 | */ |
1692 | |
1693 | #define HTOV(name,type) \ |
1694 | type \ |
1695 | name (n) \ |
1696 | register type n; \ |
1697 | { \ |
1698 | union { \ |
1699 | type value; \ |
1700 | char c[sizeof(type)]; \ |
1701 | } u; \ |
79072805 |
1702 | register I32 i; \ |
1703 | register I32 s; \ |
988174c1 |
1704 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1705 | u.c[i] = (n >> s) & 0xFF; \ |
1706 | } \ |
1707 | return u.value; \ |
1708 | } |
1709 | |
1710 | #define VTOH(name,type) \ |
1711 | type \ |
1712 | name (n) \ |
1713 | register type n; \ |
1714 | { \ |
1715 | union { \ |
1716 | type value; \ |
1717 | char c[sizeof(type)]; \ |
1718 | } u; \ |
79072805 |
1719 | register I32 i; \ |
1720 | register I32 s; \ |
988174c1 |
1721 | u.value = n; \ |
1722 | n = 0; \ |
1723 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1724 | n += (u.c[i] & 0xFF) << s; \ |
1725 | } \ |
1726 | return n; \ |
1727 | } |
1728 | |
1729 | #if defined(HAS_HTOVS) && !defined(htovs) |
1730 | HTOV(htovs,short) |
1731 | #endif |
1732 | #if defined(HAS_HTOVL) && !defined(htovl) |
1733 | HTOV(htovl,long) |
1734 | #endif |
1735 | #if defined(HAS_VTOHS) && !defined(vtohs) |
1736 | VTOH(vtohs,short) |
1737 | #endif |
1738 | #if defined(HAS_VTOHL) && !defined(vtohl) |
1739 | VTOH(vtohl,long) |
1740 | #endif |
a687059c |
1741 | |
5f05dabc |
1742 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
1743 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) |
760ac839 |
1744 | PerlIO * |
79072805 |
1745 | my_popen(cmd,mode) |
a687059c |
1746 | char *cmd; |
1747 | char *mode; |
1748 | { |
1749 | int p[2]; |
79072805 |
1750 | register I32 this, that; |
1751 | register I32 pid; |
1752 | SV *sv; |
1738f5c4 |
1753 | I32 doexec = strNE(cmd,"-"); |
a687059c |
1754 | |
ddcf38b7 |
1755 | #ifdef OS2 |
1756 | if (doexec) { |
1757 | return my_syspopen(cmd,mode); |
1758 | } |
1759 | #endif |
a687059c |
1760 | if (pipe(p) < 0) |
1761 | return Nullfp; |
1762 | this = (*mode == 'w'); |
1763 | that = !this; |
bbce6d69 |
1764 | if (doexec && tainting) { |
1765 | taint_env(); |
1766 | taint_proper("Insecure %s%s", "EXEC"); |
d48672a2 |
1767 | } |
a687059c |
1768 | while ((pid = (doexec?vfork():fork())) < 0) { |
1769 | if (errno != EAGAIN) { |
1770 | close(p[this]); |
1771 | if (!doexec) |
463ee0b2 |
1772 | croak("Can't fork"); |
a687059c |
1773 | return Nullfp; |
1774 | } |
1775 | sleep(5); |
1776 | } |
1777 | if (pid == 0) { |
79072805 |
1778 | GV* tmpgv; |
1779 | |
a687059c |
1780 | #define THIS that |
1781 | #define THAT this |
1782 | close(p[THAT]); |
1783 | if (p[THIS] != (*mode == 'r')) { |
1784 | dup2(p[THIS], *mode == 'r'); |
1785 | close(p[THIS]); |
1786 | } |
1787 | if (doexec) { |
a0d0e21e |
1788 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 |
1789 | int fd; |
1790 | |
1791 | #ifndef NOFILE |
1792 | #define NOFILE 20 |
1793 | #endif |
d48672a2 |
1794 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
ae986130 |
1795 | close(fd); |
1796 | #endif |
a687059c |
1797 | do_exec(cmd); /* may or may not use the shell */ |
1798 | _exit(1); |
1799 | } |
de3bb511 |
1800 | /*SUPPRESS 560*/ |
85e6fe83 |
1801 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
1802 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
9f68db38 |
1803 | forkprocess = 0; |
463ee0b2 |
1804 | hv_clear(pidstatus); /* we have no children */ |
a687059c |
1805 | return Nullfp; |
1806 | #undef THIS |
1807 | #undef THAT |
1808 | } |
62b28dd9 |
1809 | do_execfree(); /* free any memory malloced by child on vfork */ |
a687059c |
1810 | close(p[that]); |
62b28dd9 |
1811 | if (p[that] < p[this]) { |
1812 | dup2(p[this], p[that]); |
1813 | close(p[this]); |
1814 | p[this] = p[that]; |
1815 | } |
79072805 |
1816 | sv = *av_fetch(fdpid,p[this],TRUE); |
a0d0e21e |
1817 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
1818 | SvIVX(sv) = pid; |
a687059c |
1819 | forkprocess = pid; |
760ac839 |
1820 | return PerlIO_fdopen(p[this], mode); |
a687059c |
1821 | } |
7c0587c8 |
1822 | #else |
55497cff |
1823 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 |
1824 | FILE *popen(); |
760ac839 |
1825 | PerlIO * |
79072805 |
1826 | my_popen(cmd,mode) |
7c0587c8 |
1827 | char *cmd; |
1828 | char *mode; |
1829 | { |
760ac839 |
1830 | /* Needs work for PerlIO ! */ |
55497cff |
1831 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1832 | return popen(PerlIO_exportFILE(cmd, 0), mode); |
7c0587c8 |
1833 | } |
1834 | #endif |
1835 | |
1836 | #endif /* !DOSISH */ |
a687059c |
1837 | |
748a9306 |
1838 | #ifdef DUMP_FDS |
79072805 |
1839 | dump_fds(s) |
ae986130 |
1840 | char *s; |
1841 | { |
1842 | int fd; |
1843 | struct stat tmpstatbuf; |
1844 | |
760ac839 |
1845 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 |
1846 | for (fd = 0; fd < 32; fd++) { |
a0d0e21e |
1847 | if (Fstat(fd,&tmpstatbuf) >= 0) |
760ac839 |
1848 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 |
1849 | } |
760ac839 |
1850 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 |
1851 | } |
1852 | #endif |
1853 | |
fe14fcc3 |
1854 | #ifndef HAS_DUP2 |
fec02dd3 |
1855 | int |
a687059c |
1856 | dup2(oldfd,newfd) |
1857 | int oldfd; |
1858 | int newfd; |
1859 | { |
a0d0e21e |
1860 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 |
1861 | if (oldfd == newfd) |
1862 | return oldfd; |
62b28dd9 |
1863 | close(newfd); |
fec02dd3 |
1864 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 |
1865 | #else |
fc36a67e |
1866 | #define DUP2_MAX_FDS 256 |
1867 | int fdtmp[DUP2_MAX_FDS]; |
79072805 |
1868 | I32 fdx = 0; |
ae986130 |
1869 | int fd; |
1870 | |
fe14fcc3 |
1871 | if (oldfd == newfd) |
fec02dd3 |
1872 | return oldfd; |
a687059c |
1873 | close(newfd); |
fc36a67e |
1874 | /* good enough for low fd's... */ |
1875 | while ((fd = dup(oldfd)) != newfd && fd >= 0) { |
1876 | if (fdx >= DUP2_MAX_FDS) { |
1877 | close(fd); |
1878 | fd = -1; |
1879 | break; |
1880 | } |
ae986130 |
1881 | fdtmp[fdx++] = fd; |
fc36a67e |
1882 | } |
ae986130 |
1883 | while (fdx > 0) |
1884 | close(fdtmp[--fdx]); |
fec02dd3 |
1885 | return fd; |
62b28dd9 |
1886 | #endif |
a687059c |
1887 | } |
1888 | #endif |
1889 | |
ff68c719 |
1890 | |
1891 | #ifdef HAS_SIGACTION |
1892 | |
1893 | Sighandler_t |
1894 | rsignal(signo, handler) |
1895 | int signo; |
1896 | Sighandler_t handler; |
1897 | { |
1898 | struct sigaction act, oact; |
1899 | |
1900 | act.sa_handler = handler; |
1901 | sigemptyset(&act.sa_mask); |
1902 | act.sa_flags = 0; |
1903 | #ifdef SA_RESTART |
1904 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
1905 | #endif |
1906 | if (sigaction(signo, &act, &oact) == -1) |
36477c24 |
1907 | return SIG_ERR; |
ff68c719 |
1908 | else |
36477c24 |
1909 | return oact.sa_handler; |
ff68c719 |
1910 | } |
1911 | |
1912 | Sighandler_t |
1913 | rsignal_state(signo) |
1914 | int signo; |
1915 | { |
1916 | struct sigaction oact; |
1917 | |
1918 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) |
1919 | return SIG_ERR; |
1920 | else |
1921 | return oact.sa_handler; |
1922 | } |
1923 | |
1924 | int |
1925 | rsignal_save(signo, handler, save) |
1926 | int signo; |
1927 | Sighandler_t handler; |
1928 | Sigsave_t *save; |
1929 | { |
1930 | struct sigaction act; |
1931 | |
1932 | act.sa_handler = handler; |
1933 | sigemptyset(&act.sa_mask); |
1934 | act.sa_flags = 0; |
1935 | #ifdef SA_RESTART |
1936 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
1937 | #endif |
1938 | return sigaction(signo, &act, save); |
1939 | } |
1940 | |
1941 | int |
1942 | rsignal_restore(signo, save) |
1943 | int signo; |
1944 | Sigsave_t *save; |
1945 | { |
1946 | return sigaction(signo, save, (struct sigaction *)NULL); |
1947 | } |
1948 | |
1949 | #else /* !HAS_SIGACTION */ |
1950 | |
1951 | Sighandler_t |
1952 | rsignal(signo, handler) |
1953 | int signo; |
1954 | Sighandler_t handler; |
1955 | { |
1956 | return signal(signo, handler); |
1957 | } |
1958 | |
1959 | static int sig_trapped; |
1960 | |
1961 | static |
1962 | Signal_t |
1963 | sig_trap(signo) |
1964 | int signo; |
1965 | { |
1966 | sig_trapped++; |
1967 | } |
1968 | |
1969 | Sighandler_t |
1970 | rsignal_state(signo) |
1971 | int signo; |
1972 | { |
1973 | Sighandler_t oldsig; |
1974 | |
1975 | sig_trapped = 0; |
1976 | oldsig = signal(signo, sig_trap); |
1977 | signal(signo, oldsig); |
1978 | if (sig_trapped) |
1979 | kill(getpid(), signo); |
1980 | return oldsig; |
1981 | } |
1982 | |
1983 | int |
1984 | rsignal_save(signo, handler, save) |
1985 | int signo; |
1986 | Sighandler_t handler; |
1987 | Sigsave_t *save; |
1988 | { |
1989 | *save = signal(signo, handler); |
1990 | return (*save == SIG_ERR) ? -1 : 0; |
1991 | } |
1992 | |
1993 | int |
36477c24 |
1994 | rsignal_restore(signo, save) |
ff68c719 |
1995 | int signo; |
1996 | Sigsave_t *save; |
1997 | { |
1998 | return (signal(signo, *save) == SIG_ERR) ? -1 : 0; |
1999 | } |
2000 | |
2001 | #endif /* !HAS_SIGACTION */ |
2002 | |
5f05dabc |
2003 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
2004 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) |
79072805 |
2005 | I32 |
2006 | my_pclose(ptr) |
760ac839 |
2007 | PerlIO *ptr; |
a687059c |
2008 | { |
ff68c719 |
2009 | Sigsave_t hstat, istat, qstat; |
a687059c |
2010 | int status; |
a0d0e21e |
2011 | SV **svp; |
20188a90 |
2012 | int pid; |
03136e13 |
2013 | bool close_failed; |
2014 | int saved_errno; |
2015 | #ifdef VMS |
2016 | int saved_vaxc_errno; |
2017 | #endif |
a687059c |
2018 | |
760ac839 |
2019 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 |
2020 | pid = (int)SvIVX(*svp); |
a0d0e21e |
2021 | SvREFCNT_dec(*svp); |
2022 | *svp = &sv_undef; |
ddcf38b7 |
2023 | #ifdef OS2 |
2024 | if (pid == -1) { /* Opened by popen. */ |
2025 | return my_syspclose(ptr); |
2026 | } |
2027 | #endif |
03136e13 |
2028 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2029 | saved_errno = errno; |
2030 | #ifdef VMS |
2031 | saved_vaxc_errno = vaxc$errno; |
2032 | #endif |
2033 | } |
7c0587c8 |
2034 | #ifdef UTS |
2035 | if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
2036 | #endif |
ff68c719 |
2037 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2038 | rsignal_save(SIGINT, SIG_IGN, &istat); |
2039 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); |
748a9306 |
2040 | do { |
2041 | pid = wait4pid(pid, &status, 0); |
2042 | } while (pid == -1 && errno == EINTR); |
ff68c719 |
2043 | rsignal_restore(SIGHUP, &hstat); |
2044 | rsignal_restore(SIGINT, &istat); |
2045 | rsignal_restore(SIGQUIT, &qstat); |
03136e13 |
2046 | if (close_failed) { |
2047 | SETERRNO(saved_errno, saved_vaxc_errno); |
2048 | return -1; |
2049 | } |
2050 | return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status)); |
20188a90 |
2051 | } |
4633a7c4 |
2052 | #endif /* !DOSISH */ |
2053 | |
2054 | #if !defined(DOSISH) || defined(OS2) |
79072805 |
2055 | I32 |
20188a90 |
2056 | wait4pid(pid,statusp,flags) |
2057 | int pid; |
2058 | int *statusp; |
2059 | int flags; |
2060 | { |
79072805 |
2061 | SV *sv; |
2062 | SV** svp; |
fc36a67e |
2063 | char spid[TYPE_CHARS(int)]; |
20188a90 |
2064 | |
2065 | if (!pid) |
2066 | return -1; |
20188a90 |
2067 | if (pid > 0) { |
2068 | sprintf(spid, "%d", pid); |
79072805 |
2069 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
2070 | if (svp && *svp != &sv_undef) { |
463ee0b2 |
2071 | *statusp = SvIVX(*svp); |
748a9306 |
2072 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
2073 | return pid; |
2074 | } |
2075 | } |
2076 | else { |
79072805 |
2077 | HE *entry; |
20188a90 |
2078 | |
79072805 |
2079 | hv_iterinit(pidstatus); |
2080 | if (entry = hv_iternext(pidstatus)) { |
a0d0e21e |
2081 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 |
2082 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 |
2083 | *statusp = SvIVX(sv); |
20188a90 |
2084 | sprintf(spid, "%d", pid); |
748a9306 |
2085 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
2086 | return pid; |
2087 | } |
2088 | } |
79072805 |
2089 | #ifdef HAS_WAITPID |
2090 | return waitpid(pid,statusp,flags); |
2091 | #else |
a0d0e21e |
2092 | #ifdef HAS_WAIT4 |
2093 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
2094 | #else |
2095 | { |
2096 | I32 result; |
2097 | if (flags) |
2098 | croak("Can't do waitpid with flags"); |
2099 | else { |
2100 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) |
2101 | pidgone(result,*statusp); |
2102 | if (result < 0) |
2103 | *statusp = -1; |
2104 | } |
2105 | return result; |
a687059c |
2106 | } |
2107 | #endif |
20188a90 |
2108 | #endif |
a687059c |
2109 | } |
7c0587c8 |
2110 | #endif /* !DOSISH */ |
a687059c |
2111 | |
7c0587c8 |
2112 | void |
de3bb511 |
2113 | /*SUPPRESS 590*/ |
a687059c |
2114 | pidgone(pid,status) |
2115 | int pid; |
2116 | int status; |
2117 | { |
79072805 |
2118 | register SV *sv; |
fc36a67e |
2119 | char spid[TYPE_CHARS(int)]; |
a687059c |
2120 | |
20188a90 |
2121 | sprintf(spid, "%d", pid); |
79072805 |
2122 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e |
2123 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
2124 | SvIVX(sv) = status; |
20188a90 |
2125 | return; |
a687059c |
2126 | } |
2127 | |
55497cff |
2128 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 |
2129 | int pclose(); |
ddcf38b7 |
2130 | #ifdef HAS_FORK |
2131 | int /* Cannot prototype with I32 |
2132 | in os2ish.h. */ |
2133 | my_syspclose(ptr) |
2134 | #else |
79072805 |
2135 | I32 |
2136 | my_pclose(ptr) |
ddcf38b7 |
2137 | #endif |
760ac839 |
2138 | PerlIO *ptr; |
a687059c |
2139 | { |
760ac839 |
2140 | /* Needs work for PerlIO ! */ |
2141 | FILE *f = PerlIO_findFILE(ptr); |
2142 | I32 result = pclose(f); |
2143 | PerlIO_releaseFILE(ptr,f); |
2144 | return result; |
a687059c |
2145 | } |
7c0587c8 |
2146 | #endif |
9f68db38 |
2147 | |
2148 | void |
2149 | repeatcpy(to,from,len,count) |
2150 | register char *to; |
2151 | register char *from; |
79072805 |
2152 | I32 len; |
2153 | register I32 count; |
9f68db38 |
2154 | { |
79072805 |
2155 | register I32 todo; |
9f68db38 |
2156 | register char *frombase = from; |
2157 | |
2158 | if (len == 1) { |
2159 | todo = *from; |
2160 | while (count-- > 0) |
2161 | *to++ = todo; |
2162 | return; |
2163 | } |
2164 | while (count-- > 0) { |
2165 | for (todo = len; todo > 0; todo--) { |
2166 | *to++ = *from++; |
2167 | } |
2168 | from = frombase; |
2169 | } |
2170 | } |
0f85fab0 |
2171 | |
2172 | #ifndef CASTNEGFLOAT |
463ee0b2 |
2173 | U32 |
79072805 |
2174 | cast_ulong(f) |
0f85fab0 |
2175 | double f; |
2176 | { |
2177 | long along; |
2178 | |
27e2fb84 |
2179 | #if CASTFLAGS & 2 |
34de22dd |
2180 | # define BIGDOUBLE 2147483648.0 |
2181 | if (f >= BIGDOUBLE) |
2182 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; |
2183 | #endif |
0f85fab0 |
2184 | if (f >= 0.0) |
2185 | return (unsigned long)f; |
2186 | along = (long)f; |
2187 | return (unsigned long)along; |
2188 | } |
ed6116ce |
2189 | # undef BIGDOUBLE |
2190 | #endif |
2191 | |
2192 | #ifndef CASTI32 |
5d94fbed |
2193 | |
5d94fbed |
2194 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2195 | work with the system-supplied definition of ULONG_MAX. The |
2196 | comparison (f >= ULONG_MAX) always comes out true. It must be a |
2197 | problem with the compiler constant folding. |
2198 | |
2199 | In any case, this workaround should be fine on any two's complement |
2200 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your |
2201 | ccflags. |
2202 | --Andy Dougherty <doughera@lafcol.lafayette.edu> |
2203 | */ |
1eb770ff |
2204 | |
2205 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead |
2206 | of LONG_(MIN/MAX). |
2207 | -- Kenneth Albanowski <kjahds@kjahds.com> |
2208 | */ |
2209 | |
20cec16a |
2210 | #ifndef MY_UV_MAX |
2211 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) |
5d94fbed |
2212 | #endif |
2213 | |
ed6116ce |
2214 | I32 |
2215 | cast_i32(f) |
2216 | double f; |
2217 | { |
20cec16a |
2218 | if (f >= I32_MAX) |
2219 | return (I32) I32_MAX; |
2220 | if (f <= I32_MIN) |
2221 | return (I32) I32_MIN; |
ed6116ce |
2222 | return (I32) f; |
2223 | } |
a0d0e21e |
2224 | |
2225 | IV |
2226 | cast_iv(f) |
2227 | double f; |
2228 | { |
20cec16a |
2229 | if (f >= IV_MAX) |
2230 | return (IV) IV_MAX; |
2231 | if (f <= IV_MIN) |
2232 | return (IV) IV_MIN; |
a0d0e21e |
2233 | return (IV) f; |
2234 | } |
5d94fbed |
2235 | |
2236 | UV |
2237 | cast_uv(f) |
2238 | double f; |
2239 | { |
20cec16a |
2240 | if (f >= MY_UV_MAX) |
2241 | return (UV) MY_UV_MAX; |
5d94fbed |
2242 | return (UV) f; |
2243 | } |
2244 | |
0f85fab0 |
2245 | #endif |
62b28dd9 |
2246 | |
fe14fcc3 |
2247 | #ifndef HAS_RENAME |
79072805 |
2248 | I32 |
62b28dd9 |
2249 | same_dirent(a,b) |
2250 | char *a; |
2251 | char *b; |
2252 | { |
93a17b20 |
2253 | char *fa = strrchr(a,'/'); |
2254 | char *fb = strrchr(b,'/'); |
62b28dd9 |
2255 | struct stat tmpstatbuf1; |
2256 | struct stat tmpstatbuf2; |
46fc3d4c |
2257 | SV *tmpsv = sv_newmortal(); |
62b28dd9 |
2258 | |
2259 | if (fa) |
2260 | fa++; |
2261 | else |
2262 | fa = a; |
2263 | if (fb) |
2264 | fb++; |
2265 | else |
2266 | fb = b; |
2267 | if (strNE(a,b)) |
2268 | return FALSE; |
2269 | if (fa == a) |
46fc3d4c |
2270 | sv_setpv(tmpsv, "."); |
62b28dd9 |
2271 | else |
46fc3d4c |
2272 | sv_setpvn(tmpsv, a, fa - a); |
2273 | if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
62b28dd9 |
2274 | return FALSE; |
2275 | if (fb == b) |
46fc3d4c |
2276 | sv_setpv(tmpsv, "."); |
62b28dd9 |
2277 | else |
46fc3d4c |
2278 | sv_setpvn(tmpsv, b, fb - b); |
2279 | if (Stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
62b28dd9 |
2280 | return FALSE; |
2281 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && |
2282 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; |
2283 | } |
fe14fcc3 |
2284 | #endif /* !HAS_RENAME */ |
2285 | |
55497cff |
2286 | UV |
79072805 |
2287 | scan_oct(start, len, retlen) |
fe14fcc3 |
2288 | char *start; |
79072805 |
2289 | I32 len; |
2290 | I32 *retlen; |
fe14fcc3 |
2291 | { |
2292 | register char *s = start; |
55497cff |
2293 | register UV retval = 0; |
2294 | bool overflowed = FALSE; |
fe14fcc3 |
2295 | |
748a9306 |
2296 | while (len && *s >= '0' && *s <= '7') { |
55497cff |
2297 | register UV n = retval << 3; |
2298 | if (!overflowed && (n >> 3) != retval) { |
2299 | warn("Integer overflow in octal number"); |
2300 | overflowed = TRUE; |
2301 | } |
2302 | retval = n | (*s++ - '0'); |
748a9306 |
2303 | len--; |
fe14fcc3 |
2304 | } |
748a9306 |
2305 | if (dowarn && len && (*s == '8' || *s == '9')) |
2306 | warn("Illegal octal digit ignored"); |
fe14fcc3 |
2307 | *retlen = s - start; |
2308 | return retval; |
2309 | } |
2310 | |
71be2cbc |
2311 | UV |
79072805 |
2312 | scan_hex(start, len, retlen) |
fe14fcc3 |
2313 | char *start; |
79072805 |
2314 | I32 len; |
2315 | I32 *retlen; |
fe14fcc3 |
2316 | { |
2317 | register char *s = start; |
55497cff |
2318 | register UV retval = 0; |
2319 | bool overflowed = FALSE; |
fe14fcc3 |
2320 | char *tmp; |
2321 | |
93a17b20 |
2322 | while (len-- && *s && (tmp = strchr(hexdigit, *s))) { |
55497cff |
2323 | register UV n = retval << 4; |
2324 | if (!overflowed && (n >> 4) != retval) { |
2325 | warn("Integer overflow in hex number"); |
2326 | overflowed = TRUE; |
2327 | } |
2328 | retval = n | (tmp - hexdigit) & 15; |
fe14fcc3 |
2329 | s++; |
2330 | } |
2331 | *retlen = s - start; |
2332 | return retval; |
2333 | } |
760ac839 |
2334 | |
2335 | |
2336 | #ifdef HUGE_VAL |
2337 | /* |
2338 | * This hack is to force load of "huge" support from libm.a |
2339 | * So it is in perl for (say) POSIX to use. |
2340 | * Needed for SunOS with Sun's 'acc' for example. |
2341 | */ |
2342 | double |
2343 | Perl_huge() |
2344 | { |
2345 | return HUGE_VAL; |
2346 | } |
2347 | #endif |