Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* util.c |
a687059c | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
a687059c | 4 | * |
d48672a2 LW |
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 LW |
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 LW |
28 | # include <unistd.h> |
29 | #endif | |
30 | ||
a687059c LW |
31 | #ifdef I_VFORK |
32 | # include <vfork.h> | |
33 | #endif | |
34 | ||
94b6baf5 AD |
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 LW |
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 LW |
55 | #ifdef LEAKTEST |
56 | static void xstat _((void)); | |
57 | #endif | |
58 | ||
55497cff | 59 | #ifndef MYMALLOC |
de3bb511 | 60 | |
8d063cd8 LW |
61 | /* paranoid version of malloc */ |
62 | ||
a687059c LW |
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 LW |
67 | */ |
68 | ||
bd4080b3 | 69 | Malloc_t |
8d063cd8 LW |
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 LW |
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 LW |
89 | #endif |
90 | if (ptr != Nullch) | |
91 | return ptr; | |
7c0587c8 LW |
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 LW |
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 LW |
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 LW |
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 LW |
127 | |
128 | #if !(defined(I286) || defined(atarist)) | |
129 | DEBUG_m( { | |
760ac839 LW |
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 LW |
132 | } ) |
133 | #else | |
134 | DEBUG_m( { | |
760ac839 LW |
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 LW |
140 | if (ptr != Nullch) |
141 | return ptr; | |
7c0587c8 LW |
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 LW |
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 LW |
164 | free(where); |
165 | } | |
8d063cd8 LW |
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 GS |
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 LW |
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 LW |
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 LW |
231 | MEM_SIZE size; |
232 | { | |
bd4080b3 | 233 | register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN); |
a0d0e21e | 234 | return new + ALIGN; |
a687059c LW |
235 | } |
236 | ||
237 | void | |
238 | safexfree(where) | |
bd4080b3 | 239 | Malloc_t where; |
a687059c | 240 | { |
79072805 | 241 | I32 x; |
a687059c LW |
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 LW |
276 | } |
277 | } | |
8d063cd8 | 278 | } |
a687059c LW |
279 | |
280 | #endif /* LEAKTEST */ | |
8d063cd8 LW |
281 | |
282 | /* copy a string up to some (non-backslashed) delimiter, if any */ | |
283 | ||
284 | char * | |
fc36a67e | 285 | delimcpy(to, toend, from, fromend, delim, retlen) |
62b28dd9 | 286 | register char *to; |
fc36a67e | 287 | register char *toend; |
62b28dd9 | 288 | register char *from; |
a687059c | 289 | register char *fromend; |
a0d0e21e | 290 | register int delim; |
79072805 | 291 | I32 *retlen; |
8d063cd8 | 292 | { |
fc36a67e | 293 | register I32 tolen; |
294 | for (tolen = 0; from < fromend; from++, tolen++) { | |
378cc40b LW |
295 | if (*from == '\\') { |
296 | if (from[1] == delim) | |
297 | from++; | |
fc36a67e | 298 | else { |
299 | if (to < toend) | |
300 | *to++ = *from; | |
301 | tolen++; | |
302 | from++; | |
303 | } | |
378cc40b | 304 | } |
fc36a67e | 305 | else if (*from == delim) { |
306 | if (to < toend) | |
307 | *to = '\0'; | |
8d063cd8 | 308 | break; |
fc36a67e | 309 | } |
310 | if (to < toend) | |
311 | *to++ = *from; | |
8d063cd8 | 312 | } |
fc36a67e | 313 | *retlen = tolen; |
8d063cd8 LW |
314 | return from; |
315 | } | |
316 | ||
317 | /* return ptr to little string in big string, NULL if not found */ | |
378cc40b | 318 | /* This routine was donated by Corey Satten. */ |
8d063cd8 LW |
319 | |
320 | char * | |
321 | instr(big, little) | |
378cc40b LW |
322 | register char *big; |
323 | register char *little; | |
324 | { | |
325 | register char *s, *x; | |
79072805 | 326 | register I32 first; |
378cc40b | 327 | |
a687059c LW |
328 | if (!little) |
329 | return big; | |
330 | first = *little++; | |
378cc40b LW |
331 | if (!first) |
332 | return big; | |
333 | while (*big) { | |
334 | if (*big++ != first) | |
335 | continue; | |
336 | for (x=big,s=little; *s; /**/ ) { | |
337 | if (!*x) | |
338 | return Nullch; | |
339 | if (*s++ != *x++) { | |
340 | s--; | |
341 | break; | |
342 | } | |
343 | } | |
344 | if (!*s) | |
345 | return big-1; | |
346 | } | |
347 | return Nullch; | |
348 | } | |
8d063cd8 | 349 | |
a687059c LW |
350 | /* same as instr but allow embedded nulls */ |
351 | ||
352 | char * | |
353 | ninstr(big, bigend, little, lend) | |
354 | register char *big; | |
355 | register char *bigend; | |
356 | char *little; | |
357 | char *lend; | |
8d063cd8 | 358 | { |
a687059c | 359 | register char *s, *x; |
79072805 | 360 | register I32 first = *little; |
a687059c | 361 | register char *littleend = lend; |
378cc40b | 362 | |
a0d0e21e | 363 | if (!first && little >= littleend) |
a687059c | 364 | return big; |
de3bb511 LW |
365 | if (bigend - big < littleend - little) |
366 | return Nullch; | |
a687059c LW |
367 | bigend -= littleend - little++; |
368 | while (big <= bigend) { | |
369 | if (*big++ != first) | |
370 | continue; | |
371 | for (x=big,s=little; s < littleend; /**/ ) { | |
372 | if (*s++ != *x++) { | |
373 | s--; | |
374 | break; | |
375 | } | |
376 | } | |
377 | if (s >= littleend) | |
378 | return big-1; | |
378cc40b | 379 | } |
a687059c LW |
380 | return Nullch; |
381 | } | |
382 | ||
383 | /* reverse of the above--find last substring */ | |
384 | ||
385 | char * | |
386 | rninstr(big, bigend, little, lend) | |
387 | register char *big; | |
388 | char *bigend; | |
389 | char *little; | |
390 | char *lend; | |
391 | { | |
392 | register char *bigbeg; | |
393 | register char *s, *x; | |
79072805 | 394 | register I32 first = *little; |
a687059c LW |
395 | register char *littleend = lend; |
396 | ||
a0d0e21e | 397 | if (!first && little >= littleend) |
a687059c LW |
398 | return bigend; |
399 | bigbeg = big; | |
400 | big = bigend - (littleend - little++); | |
401 | while (big >= bigbeg) { | |
402 | if (*big-- != first) | |
403 | continue; | |
404 | for (x=big+2,s=little; s < littleend; /**/ ) { | |
405 | if (*s++ != *x++) { | |
406 | s--; | |
407 | break; | |
408 | } | |
409 | } | |
410 | if (s >= littleend) | |
411 | return big+1; | |
378cc40b | 412 | } |
a687059c | 413 | return Nullch; |
378cc40b | 414 | } |
a687059c | 415 | |
bbce6d69 | 416 | /* |
417 | * Set up for a new ctype locale. | |
418 | */ | |
55497cff | 419 | void |
bbce6d69 | 420 | perl_new_ctype(newctype) |
421 | char *newctype; | |
ef7eada9 | 422 | { |
36477c24 | 423 | #ifdef USE_LOCALE_CTYPE |
424 | ||
bbce6d69 | 425 | int i; |
ef7eada9 | 426 | |
bbce6d69 | 427 | for (i = 0; i < 256; i++) { |
428 | if (isUPPER_LC(i)) | |
429 | fold_locale[i] = toLOWER_LC(i); | |
430 | else if (isLOWER_LC(i)) | |
431 | fold_locale[i] = toUPPER_LC(i); | |
432 | else | |
433 | fold_locale[i] = i; | |
434 | } | |
bbce6d69 | 435 | |
36477c24 | 436 | #endif /* USE_LOCALE_CTYPE */ |
437 | } | |
bbce6d69 | 438 | |
439 | /* | |
440 | * Set up for a new collation locale. | |
441 | */ | |
442 | void | |
443 | perl_new_collate(newcoll) | |
444 | char *newcoll; | |
445 | { | |
36477c24 | 446 | #ifdef USE_LOCALE_COLLATE |
447 | ||
bbce6d69 | 448 | if (! newcoll) { |
449 | if (collation_name) { | |
450 | ++collation_ix; | |
451 | Safefree(collation_name); | |
452 | collation_name = NULL; | |
453 | collation_standard = TRUE; | |
bbce6d69 | 454 | collxfrm_base = 0; |
455 | collxfrm_mult = 2; | |
bbce6d69 | 456 | } |
457 | return; | |
458 | } | |
459 | ||
460 | if (! collation_name || strNE(collation_name, newcoll)) { | |
461 | ++collation_ix; | |
462 | Safefree(collation_name); | |
463 | collation_name = savepv(newcoll); | |
ff68c719 | 464 | collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); |
bbce6d69 | 465 | |
bbce6d69 | 466 | { |
467 | /* 2: at most so many chars ('a', 'b'). */ | |
468 | /* 50: surely no system expands a char more. */ | |
469 | #define XFRMBUFSIZE (2 * 50) | |
470 | char xbuf[XFRMBUFSIZE]; | |
471 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); | |
472 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); | |
473 | SSize_t mult = fb - fa; | |
474 | if (mult < 1) | |
475 | croak("strxfrm() gets absurd"); | |
476 | collxfrm_base = (fa > mult) ? (fa - mult) : 0; | |
477 | collxfrm_mult = mult; | |
478 | } | |
bbce6d69 | 479 | } |
bbce6d69 | 480 | |
36477c24 | 481 | #endif /* USE_LOCALE_COLLATE */ |
482 | } | |
bbce6d69 | 483 | |
484 | /* | |
485 | * Set up for a new numeric locale. | |
486 | */ | |
487 | void | |
488 | perl_new_numeric(newnum) | |
489 | char *newnum; | |
490 | { | |
36477c24 | 491 | #ifdef USE_LOCALE_NUMERIC |
492 | ||
bbce6d69 | 493 | if (! newnum) { |
494 | if (numeric_name) { | |
495 | Safefree(numeric_name); | |
496 | numeric_name = NULL; | |
497 | numeric_standard = TRUE; | |
498 | numeric_local = TRUE; | |
499 | } | |
500 | return; | |
501 | } | |
502 | ||
503 | if (! numeric_name || strNE(numeric_name, newnum)) { | |
504 | Safefree(numeric_name); | |
505 | numeric_name = savepv(newnum); | |
ff68c719 | 506 | numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
bbce6d69 | 507 | numeric_local = TRUE; |
508 | } | |
36477c24 | 509 | |
510 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 511 | } |
512 | ||
513 | void | |
36477c24 | 514 | perl_set_numeric_standard() |
bbce6d69 | 515 | { |
5f05dabc | 516 | #ifdef USE_LOCALE_NUMERIC |
517 | ||
bbce6d69 | 518 | if (! numeric_standard) { |
519 | setlocale(LC_NUMERIC, "C"); | |
520 | numeric_standard = TRUE; | |
521 | numeric_local = FALSE; | |
522 | } | |
5f05dabc | 523 | |
524 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 525 | } |
526 | ||
527 | void | |
36477c24 | 528 | perl_set_numeric_local() |
bbce6d69 | 529 | { |
5f05dabc | 530 | #ifdef USE_LOCALE_NUMERIC |
531 | ||
bbce6d69 | 532 | if (! numeric_local) { |
533 | setlocale(LC_NUMERIC, numeric_name); | |
534 | numeric_standard = FALSE; | |
535 | numeric_local = TRUE; | |
536 | } | |
bbce6d69 | 537 | |
36477c24 | 538 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 539 | } |
36477c24 | 540 | |
bbce6d69 | 541 | |
36477c24 | 542 | /* |
543 | * Initialize locale awareness. | |
544 | */ | |
f0c5b223 | 545 | int |
1050c9ca | 546 | perl_init_i18nl10n(printwarn) |
f0c5b223 TB |
547 | int printwarn; |
548 | { | |
549 | int ok = 1; | |
550 | /* returns | |
551 | * 1 = set ok or not applicable, | |
552 | * 0 = fallback to C locale, | |
553 | * -1 = fallback to C locale failed | |
554 | */ | |
bbce6d69 | 555 | |
36477c24 | 556 | #ifdef USE_LOCALE |
bbce6d69 | 557 | |
36477c24 | 558 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 559 | char *curctype = NULL; |
36477c24 | 560 | #endif /* USE_LOCALE_CTYPE */ |
561 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 562 | char *curcoll = NULL; |
36477c24 | 563 | #endif /* USE_LOCALE_COLLATE */ |
564 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 565 | char *curnum = NULL; |
36477c24 | 566 | #endif /* USE_LOCALE_NUMERIC */ |
02b32252 | 567 | char *lc_all = getenv("LC_ALL"); |
5f05dabc | 568 | char *lang = getenv("LANG"); |
bbce6d69 | 569 | bool setlocale_failure = FALSE; |
f0c5b223 | 570 | |
02b32252 CS |
571 | #ifdef LOCALE_ENVIRON_REQUIRED |
572 | ||
573 | /* | |
574 | * Ultrix setlocale(..., "") fails if there are no environment | |
575 | * variables from which to get a locale name. | |
576 | */ | |
577 | ||
578 | bool done = FALSE; | |
579 | ||
580 | #ifdef LC_ALL | |
581 | if (lang) { | |
582 | if (setlocale(LC_ALL, "")) | |
583 | done = TRUE; | |
584 | else | |
585 | setlocale_failure = TRUE; | |
586 | } | |
587 | if (!setlocale_failure) | |
588 | #endif /* LC_ALL */ | |
589 | { | |
590 | #ifdef USE_LOCALE_CTYPE | |
591 | if (! (curctype = setlocale(LC_CTYPE, | |
592 | (!done && (lang || getenv("LC_CTYPE"))) | |
593 | ? "" : Nullch))) | |
594 | setlocale_failure = TRUE; | |
595 | #endif /* USE_LOCALE_CTYPE */ | |
596 | #ifdef USE_LOCALE_COLLATE | |
597 | if (! (curcoll = setlocale(LC_COLLATE, | |
598 | (!done && (lang || getenv("LC_COLLATE"))) | |
599 | ? "" : Nullch))) | |
600 | setlocale_failure = TRUE; | |
601 | #endif /* USE_LOCALE_COLLATE */ | |
602 | #ifdef USE_LOCALE_NUMERIC | |
603 | if (! (curnum = setlocale(LC_NUMERIC, | |
604 | (!done && (lang || getenv("LC_NUMERIC"))) | |
605 | ? "" : Nullch))) | |
606 | setlocale_failure = TRUE; | |
607 | #endif /* USE_LOCALE_NUMERIC */ | |
608 | } | |
609 | ||
610 | #else /* !LOCALE_ENVIRON_REQUIRED */ | |
611 | ||
bbce6d69 | 612 | #ifdef LC_ALL |
5f05dabc | 613 | |
bbce6d69 | 614 | if (! setlocale(LC_ALL, "")) |
615 | setlocale_failure = TRUE; | |
5f05dabc | 616 | else { |
617 | #ifdef USE_LOCALE_CTYPE | |
618 | curctype = setlocale(LC_CTYPE, Nullch); | |
619 | #endif /* USE_LOCALE_CTYPE */ | |
620 | #ifdef USE_LOCALE_COLLATE | |
621 | curcoll = setlocale(LC_COLLATE, Nullch); | |
622 | #endif /* USE_LOCALE_COLLATE */ | |
623 | #ifdef USE_LOCALE_NUMERIC | |
624 | curnum = setlocale(LC_NUMERIC, Nullch); | |
625 | #endif /* USE_LOCALE_NUMERIC */ | |
626 | } | |
627 | ||
628 | #else /* !LC_ALL */ | |
bbce6d69 | 629 | |
36477c24 | 630 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 631 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
bbce6d69 | 632 | setlocale_failure = TRUE; |
36477c24 | 633 | #endif /* USE_LOCALE_CTYPE */ |
634 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 635 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
bbce6d69 | 636 | setlocale_failure = TRUE; |
36477c24 | 637 | #endif /* USE_LOCALE_COLLATE */ |
638 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 639 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
bbce6d69 | 640 | setlocale_failure = TRUE; |
36477c24 | 641 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 642 | |
5f05dabc | 643 | #endif /* LC_ALL */ |
644 | ||
02b32252 CS |
645 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
646 | ||
5f05dabc | 647 | if (setlocale_failure) { |
648 | char *p; | |
649 | bool locwarn = (printwarn > 1 || | |
650 | printwarn && | |
651 | (!(p = getenv("PERL_BADLANG")) || atoi(p))); | |
20cec16a | 652 | |
5f05dabc | 653 | if (locwarn) { |
654 | #ifdef LC_ALL | |
655 | ||
656 | PerlIO_printf(PerlIO_stderr(), | |
657 | "perl: warning: Setting locale failed.\n"); | |
658 | ||
659 | #else /* !LC_ALL */ | |
660 | ||
ef7eada9 | 661 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 662 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 | 663 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 664 | if (! curctype) |
5f05dabc | 665 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 | 666 | #endif /* USE_LOCALE_CTYPE */ |
667 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 668 | if (! curcoll) |
5f05dabc | 669 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 | 670 | #endif /* USE_LOCALE_COLLATE */ |
671 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 672 | if (! curnum) |
5f05dabc | 673 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 | 674 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 675 | PerlIO_printf(PerlIO_stderr(), "\n"); |
676 | ||
5f05dabc | 677 | #endif /* LC_ALL */ |
678 | ||
760ac839 | 679 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 680 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 JH |
681 | |
682 | PerlIO_printf(PerlIO_stderr(), | |
bbce6d69 | 683 | "\tLC_ALL = %c%s%c,\n", |
684 | lc_all ? '"' : '(', | |
685 | lc_all ? lc_all : "unset", | |
686 | lc_all ? '"' : ')'); | |
5f05dabc | 687 | |
688 | { | |
689 | char **e; | |
690 | for (e = environ; *e; e++) { | |
691 | if (strnEQ(*e, "LC_", 3) | |
692 | && strnNE(*e, "LC_ALL=", 7) | |
693 | && (p = strchr(*e, '='))) | |
694 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", | |
695 | (p - *e), *e, p + 1); | |
696 | } | |
697 | } | |
698 | ||
ef7eada9 | 699 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 700 | "\tLANG = %c%s%c\n", |
5f05dabc | 701 | lang ? '"' : '(', |
bbce6d69 | 702 | lang ? lang : "unset", |
703 | lang ? '"' : ')'); | |
ef7eada9 | 704 | |
bbce6d69 | 705 | PerlIO_printf(PerlIO_stderr(), |
706 | " are supported and installed on your system.\n"); | |
5f05dabc | 707 | } |
ef7eada9 | 708 | |
5f05dabc | 709 | #ifdef LC_ALL |
710 | ||
711 | if (setlocale(LC_ALL, "C")) { | |
712 | if (locwarn) | |
713 | PerlIO_printf(PerlIO_stderr(), | |
714 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
bbce6d69 | 715 | ok = 0; |
ef7eada9 | 716 | } |
5f05dabc | 717 | else { |
718 | if (locwarn) | |
719 | PerlIO_printf(PerlIO_stderr(), | |
720 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
721 | ok = -1; | |
722 | } | |
bbce6d69 | 723 | |
5f05dabc | 724 | #else /* ! LC_ALL */ |
725 | ||
726 | if (0 | |
36477c24 | 727 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 728 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 | 729 | #endif /* USE_LOCALE_CTYPE */ |
730 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 731 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 | 732 | #endif /* USE_LOCALE_COLLATE */ |
733 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 734 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 | 735 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 736 | ) |
737 | { | |
738 | if (locwarn) | |
bbce6d69 | 739 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc | 740 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
741 | ok = -1; | |
bbce6d69 | 742 | } |
5f05dabc | 743 | |
bbce6d69 | 744 | #endif /* ! LC_ALL */ |
5f05dabc | 745 | |
746 | #ifdef USE_LOCALE_CTYPE | |
747 | curctype = setlocale(LC_CTYPE, Nullch); | |
748 | #endif /* USE_LOCALE_CTYPE */ | |
749 | #ifdef USE_LOCALE_COLLATE | |
750 | curcoll = setlocale(LC_COLLATE, Nullch); | |
751 | #endif /* USE_LOCALE_COLLATE */ | |
752 | #ifdef USE_LOCALE_NUMERIC | |
753 | curnum = setlocale(LC_NUMERIC, Nullch); | |
754 | #endif /* USE_LOCALE_NUMERIC */ | |
ef7eada9 JH |
755 | } |
756 | ||
36477c24 | 757 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 758 | perl_new_ctype(curctype); |
36477c24 | 759 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 | 760 | |
36477c24 | 761 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 | 762 | perl_new_collate(curcoll); |
36477c24 | 763 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 764 | |
36477c24 | 765 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 | 766 | perl_new_numeric(curnum); |
36477c24 | 767 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 | 768 | |
36477c24 | 769 | #endif /* USE_LOCALE */ |
ef7eada9 | 770 | |
f0c5b223 TB |
771 | return ok; |
772 | } | |
773 | ||
bbce6d69 | 774 | /* Backwards compatibility. */ |
775 | int | |
776 | perl_init_i18nl14n(printwarn) | |
777 | int printwarn; | |
778 | { | |
5f05dabc | 779 | return perl_init_i18nl10n(printwarn); |
bbce6d69 | 780 | } |
ef7eada9 | 781 | |
36477c24 | 782 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 | 783 | |
bbce6d69 | 784 | /* |
785 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
786 | * differences. First, it handles embedded NULs. Second, it allocates | |
787 | * a bit more memory than needed for the transformed data itself. | |
788 | * The real transformed data begins at offset sizeof(collationix). | |
789 | * Please see sv_collxfrm() to see how this is used. | |
790 | */ | |
791 | char * | |
792 | mem_collxfrm(s, len, xlen) | |
793 | const char *s; | |
794 | STRLEN len; | |
795 | STRLEN *xlen; | |
796 | { | |
797 | char *xbuf; | |
798 | STRLEN xalloc, xin, xout; | |
799 | ||
800 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ | |
801 | /* the +1 is for the terminating NUL. */ | |
802 | ||
803 | xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1; | |
804 | New(171, xbuf, xalloc, char); | |
805 | if (! xbuf) | |
806 | goto bad; | |
807 | ||
808 | *(U32*)xbuf = collation_ix; | |
809 | xout = sizeof(collation_ix); | |
810 | for (xin = 0; xin < len; ) { | |
811 | SSize_t xused; | |
812 | ||
813 | for (;;) { | |
814 | xused = strxfrm(xbuf + xout, s + xin, xalloc - xout); | |
815 | if (xused == -1) | |
816 | goto bad; | |
817 | if (xused < xalloc - xout) | |
818 | break; | |
819 | xalloc = (2 * xalloc) + 1; | |
820 | Renew(xbuf, xalloc, char); | |
821 | if (! xbuf) | |
822 | goto bad; | |
823 | } | |
ef7eada9 | 824 | |
bbce6d69 | 825 | xin += strlen(s + xin) + 1; |
826 | xout += xused; | |
827 | ||
828 | /* Embedded NULs are understood but silently skipped | |
829 | * because they make no sense in locale collation. */ | |
830 | } | |
ef7eada9 | 831 | |
bbce6d69 | 832 | xbuf[xout] = '\0'; |
833 | *xlen = xout - sizeof(collation_ix); | |
834 | return xbuf; | |
835 | ||
836 | bad: | |
837 | Safefree(xbuf); | |
838 | *xlen = 0; | |
839 | return NULL; | |
ef7eada9 JH |
840 | } |
841 | ||
36477c24 | 842 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 843 | |
378cc40b | 844 | void |
bbce6d69 | 845 | fbm_compile(sv) |
79072805 | 846 | SV *sv; |
378cc40b | 847 | { |
a687059c LW |
848 | register unsigned char *s; |
849 | register unsigned char *table; | |
79072805 LW |
850 | register U32 i; |
851 | register U32 len = SvCUR(sv); | |
852 | I32 rarest = 0; | |
853 | U32 frequency = 256; | |
854 | ||
748a9306 LW |
855 | if (len > 255) |
856 | return; /* can't have offsets that big */ | |
79072805 | 857 | Sv_Grow(sv,len+258); |
463ee0b2 | 858 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
a687059c LW |
859 | s = table - 2; |
860 | for (i = 0; i < 256; i++) { | |
378cc40b LW |
861 | table[i] = len; |
862 | } | |
863 | i = 0; | |
463ee0b2 | 864 | while (s >= (unsigned char*)(SvPVX(sv))) |
a687059c | 865 | { |
bbce6d69 | 866 | if (table[*s] == len) |
867 | table[*s] = i; | |
378cc40b LW |
868 | s--,i++; |
869 | } | |
79072805 | 870 | sv_upgrade(sv, SVt_PVBM); |
bbce6d69 | 871 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 | 872 | SvVALID_on(sv); |
378cc40b | 873 | |
463ee0b2 | 874 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 | 875 | for (i = 0; i < len; i++) { |
876 | if (freq[s[i]] < frequency) { | |
877 | rarest = i; | |
878 | frequency = freq[s[i]]; | |
378cc40b LW |
879 | } |
880 | } | |
79072805 LW |
881 | BmRARE(sv) = s[rarest]; |
882 | BmPREVIOUS(sv) = rarest; | |
760ac839 | 883 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b LW |
884 | } |
885 | ||
378cc40b | 886 | char * |
79072805 | 887 | fbm_instr(big, bigend, littlestr) |
a687059c LW |
888 | unsigned char *big; |
889 | register unsigned char *bigend; | |
79072805 | 890 | SV *littlestr; |
378cc40b | 891 | { |
a687059c | 892 | register unsigned char *s; |
79072805 LW |
893 | register I32 tmp; |
894 | register I32 littlelen; | |
a687059c LW |
895 | register unsigned char *little; |
896 | register unsigned char *table; | |
897 | register unsigned char *olds; | |
898 | register unsigned char *oldlittle; | |
378cc40b | 899 | |
79072805 | 900 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e LW |
901 | STRLEN len; |
902 | char *l = SvPV(littlestr,len); | |
903 | if (!len) | |
d48672a2 | 904 | return (char*)big; |
a0d0e21e | 905 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 | 906 | } |
378cc40b | 907 | |
79072805 LW |
908 | littlelen = SvCUR(littlestr); |
909 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ | |
0f85fab0 LW |
910 | if (littlelen > bigend - big) |
911 | return Nullch; | |
463ee0b2 | 912 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 | 913 | s = bigend - littlelen; |
36477c24 | 914 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 | 915 | return (char*)s; /* how sweet it is */ |
916 | else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' | |
917 | && s > big) { | |
918 | s--; | |
36477c24 | 919 | if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 | 920 | return (char*)s; |
a687059c | 921 | } |
bbce6d69 | 922 | return Nullch; |
a687059c | 923 | } |
463ee0b2 | 924 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 LW |
925 | if (--littlelen >= bigend - big) |
926 | return Nullch; | |
927 | s = big + littlelen; | |
a687059c | 928 | oldlittle = little = table - 2; |
bbce6d69 | 929 | if (s < bigend) { |
930 | top2: | |
931 | /*SUPPRESS 560*/ | |
932 | if (tmp = table[*s]) { | |
62b28dd9 | 933 | #ifdef POINTERRIGOR |
bbce6d69 | 934 | if (bigend - s > tmp) { |
935 | s += tmp; | |
936 | goto top2; | |
937 | } | |
62b28dd9 | 938 | #else |
bbce6d69 | 939 | if ((s += tmp) < bigend) |
940 | goto top2; | |
62b28dd9 | 941 | #endif |
bbce6d69 | 942 | return Nullch; |
a687059c | 943 | } |
bbce6d69 | 944 | else { |
945 | tmp = littlelen; /* less expensive than calling strncmp() */ | |
946 | olds = s; | |
947 | while (tmp--) { | |
948 | if (*--s == *--little) | |
949 | continue; | |
950 | s = olds + 1; /* here we pay the price for failure */ | |
951 | little = oldlittle; | |
952 | if (s < bigend) /* fake up continue to outer loop */ | |
62b28dd9 | 953 | goto top2; |
62b28dd9 | 954 | return Nullch; |
a687059c | 955 | } |
bbce6d69 | 956 | return (char *)s; |
378cc40b LW |
957 | } |
958 | } | |
959 | return Nullch; | |
960 | } | |
961 | ||
962 | char * | |
963 | screaminstr(bigstr, littlestr) | |
79072805 LW |
964 | SV *bigstr; |
965 | SV *littlestr; | |
378cc40b | 966 | { |
a687059c LW |
967 | register unsigned char *s, *x; |
968 | register unsigned char *big; | |
79072805 LW |
969 | register I32 pos; |
970 | register I32 previous; | |
971 | register I32 first; | |
a687059c LW |
972 | register unsigned char *little; |
973 | register unsigned char *bigend; | |
974 | register unsigned char *littleend; | |
378cc40b | 975 | |
79072805 | 976 | if ((pos = screamfirst[BmRARE(littlestr)]) < 0) |
378cc40b | 977 | return Nullch; |
463ee0b2 | 978 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 | 979 | littleend = little + SvCUR(littlestr); |
378cc40b | 980 | first = *little++; |
79072805 | 981 | previous = BmPREVIOUS(littlestr); |
463ee0b2 | 982 | big = (unsigned char *)(SvPVX(bigstr)); |
79072805 | 983 | bigend = big + SvCUR(bigstr); |
378cc40b LW |
984 | while (pos < previous) { |
985 | if (!(pos += screamnext[pos])) | |
986 | return Nullch; | |
987 | } | |
de3bb511 | 988 | #ifdef POINTERRIGOR |
bbce6d69 | 989 | do { |
990 | if (big[pos-previous] != first) | |
991 | continue; | |
992 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { | |
993 | if (x >= bigend) | |
994 | return Nullch; | |
995 | if (*s++ != *x++) { | |
996 | s--; | |
997 | break; | |
de3bb511 | 998 | } |
bbce6d69 | 999 | } |
1000 | if (s == littleend) | |
1001 | return (char *)(big+pos-previous); | |
1002 | } while ( pos += screamnext[pos] ); | |
de3bb511 LW |
1003 | #else /* !POINTERRIGOR */ |
1004 | big -= previous; | |
bbce6d69 | 1005 | do { |
1006 | if (big[pos] != first) | |
1007 | continue; | |
1008 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { | |
1009 | if (x >= bigend) | |
1010 | return Nullch; | |
1011 | if (*s++ != *x++) { | |
1012 | s--; | |
1013 | break; | |
378cc40b | 1014 | } |
bbce6d69 | 1015 | } |
1016 | if (s == littleend) | |
1017 | return (char *)(big+pos); | |
1018 | } while ( pos += screamnext[pos] ); | |
de3bb511 | 1019 | #endif /* POINTERRIGOR */ |
8d063cd8 LW |
1020 | return Nullch; |
1021 | } | |
1022 | ||
79072805 | 1023 | I32 |
bbce6d69 | 1024 | ibcmp(s1, s2, len) |
1025 | char *s1, *s2; | |
79072805 LW |
1026 | register I32 len; |
1027 | { | |
bbce6d69 | 1028 | register U8 *a = (U8 *)s1; |
1029 | register U8 *b = (U8 *)s2; | |
79072805 | 1030 | while (len--) { |
bbce6d69 | 1031 | if (*a != *b && *a != fold[*b]) |
1032 | return 1; | |
1033 | a++,b++; | |
1034 | } | |
1035 | return 0; | |
1036 | } | |
1037 | ||
1038 | I32 | |
1039 | ibcmp_locale(s1, s2, len) | |
1040 | char *s1, *s2; | |
1041 | register I32 len; | |
1042 | { | |
1043 | register U8 *a = (U8 *)s1; | |
1044 | register U8 *b = (U8 *)s2; | |
1045 | while (len--) { | |
1046 | if (*a != *b && *a != fold_locale[*b]) | |
1047 | return 1; | |
1048 | a++,b++; | |
79072805 LW |
1049 | } |
1050 | return 0; | |
1051 | } | |
1052 | ||
8d063cd8 LW |
1053 | /* copy a string to a safe spot */ |
1054 | ||
1055 | char * | |
a0d0e21e | 1056 | savepv(sv) |
79072805 | 1057 | char *sv; |
8d063cd8 | 1058 | { |
a687059c | 1059 | register char *newaddr; |
8d063cd8 | 1060 | |
79072805 LW |
1061 | New(902,newaddr,strlen(sv)+1,char); |
1062 | (void)strcpy(newaddr,sv); | |
8d063cd8 LW |
1063 | return newaddr; |
1064 | } | |
1065 | ||
a687059c LW |
1066 | /* same thing but with a known length */ |
1067 | ||
1068 | char * | |
a0d0e21e | 1069 | savepvn(sv, len) |
79072805 LW |
1070 | char *sv; |
1071 | register I32 len; | |
a687059c LW |
1072 | { |
1073 | register char *newaddr; | |
1074 | ||
1075 | New(903,newaddr,len+1,char); | |
79072805 | 1076 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c LW |
1077 | newaddr[len] = '\0'; /* is now */ |
1078 | return newaddr; | |
1079 | } | |
1080 | ||
fc36a67e | 1081 | /* the SV for form() and mess() is not kept in an arena */ |
1082 | ||
1083 | static SV * | |
1084 | mess_alloc() | |
1085 | { | |
1086 | SV *sv; | |
1087 | XPVMG *any; | |
1088 | ||
1089 | /* Create as PVMG now, to avoid any upgrading later */ | |
1090 | New(905, sv, 1, SV); | |
1091 | Newz(905, any, 1, XPVMG); | |
1092 | SvFLAGS(sv) = SVt_PVMG; | |
1093 | SvANY(sv) = (void*)any; | |
1094 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ | |
1095 | return sv; | |
1096 | } | |
1097 | ||
a0d0e21e | 1098 | #ifdef I_STDARG |
8990e307 | 1099 | char * |
46fc3d4c | 1100 | form(const char* pat, ...) |
a687059c LW |
1101 | #else |
1102 | /*VARARGS0*/ | |
de3bb511 | 1103 | char * |
46fc3d4c | 1104 | form(pat, va_alist) |
71be2cbc | 1105 | const char *pat; |
46fc3d4c | 1106 | va_dcl |
8990e307 LW |
1107 | #endif |
1108 | { | |
46fc3d4c | 1109 | va_list args; |
1110 | #ifdef I_STDARG | |
1111 | va_start(args, pat); | |
a687059c | 1112 | #else |
46fc3d4c | 1113 | va_start(args); |
d48672a2 | 1114 | #endif |
fc36a67e | 1115 | if (!mess_sv) |
1116 | mess_sv = mess_alloc(); | |
1117 | sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); | |
46fc3d4c | 1118 | va_end(args); |
fc36a67e | 1119 | return SvPVX(mess_sv); |
46fc3d4c | 1120 | } |
a687059c | 1121 | |
46fc3d4c | 1122 | char * |
1123 | mess(pat, args) | |
1124 | const char *pat; | |
1125 | va_list *args; | |
1126 | { | |
1127 | SV *sv; | |
1128 | static char dgd[] = " during global destruction.\n"; | |
1129 | ||
46fc3d4c | 1130 | if (!mess_sv) |
fc36a67e | 1131 | mess_sv = mess_alloc(); |
46fc3d4c | 1132 | sv = mess_sv; |
fc36a67e | 1133 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 1134 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
2304df62 | 1135 | if (dirty) |
46fc3d4c | 1136 | sv_catpv(sv, dgd); |
2304df62 | 1137 | else { |
46fc3d4c | 1138 | if (curcop->cop_line) |
fc36a67e | 1139 | sv_catpvf(sv, " at %_ line %ld", |
46fc3d4c | 1140 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
c07a80fd | 1141 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
1142 | bool line_mode = (RsSIMPLE(rs) && | |
1143 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); | |
46fc3d4c | 1144 | sv_catpvf(sv, ", <%s> %s %ld", |
1145 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), | |
1146 | line_mode ? "line" : "chunk", | |
1147 | (long)IoLINES(GvIOp(last_in_gv))); | |
2304df62 | 1148 | } |
46fc3d4c | 1149 | sv_catpv(sv, ".\n"); |
a687059c | 1150 | } |
a687059c | 1151 | } |
46fc3d4c | 1152 | return SvPVX(sv); |
a687059c LW |
1153 | } |
1154 | ||
ecfc5424 | 1155 | #ifdef I_STDARG |
36477c24 | 1156 | OP * |
71be2cbc | 1157 | die(const char* pat, ...) |
36477c24 | 1158 | #else |
1159 | /*VARARGS0*/ | |
1160 | OP * | |
1161 | die(pat, va_alist) | |
71be2cbc | 1162 | const char *pat; |
36477c24 | 1163 | va_dcl |
1164 | #endif | |
1165 | { | |
1166 | va_list args; | |
1167 | char *message; | |
035902c7 | 1168 | I32 oldrunlevel = runlevel; |
36477c24 | 1169 | int was_in_eval = in_eval; |
1170 | HV *stash; | |
1171 | GV *gv; | |
1172 | CV *cv; | |
1173 | ||
1174 | /* We have to switch back to mainstack or die_where may try to pop | |
1175 | * the eval block from the wrong stack if die is being called from a | |
1176 | * signal handler. - dkindred@cs.cmu.edu */ | |
1177 | if (curstack != mainstack) { | |
1178 | dSP; | |
1179 | SWITCHSTACK(curstack, mainstack); | |
1180 | } | |
1181 | ||
1182 | #ifdef I_STDARG | |
1183 | va_start(args, pat); | |
1184 | #else | |
1185 | va_start(args); | |
1186 | #endif | |
1187 | message = mess(pat, &args); | |
1188 | va_end(args); | |
1189 | ||
1738f5c4 CS |
1190 | if (diehook) { |
1191 | /* sv_2cv might call croak() */ | |
1192 | SV *olddiehook = diehook; | |
1193 | ENTER; | |
1194 | SAVESPTR(diehook); | |
1195 | diehook = Nullsv; | |
1196 | cv = sv_2cv(olddiehook, &stash, &gv, 0); | |
1197 | LEAVE; | |
1198 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1199 | dSP; | |
774d564b | 1200 | SV *msg; |
1201 | ||
1202 | ENTER; | |
1203 | msg = newSVpv(message, 0); | |
1204 | SvREADONLY_on(msg); | |
1205 | SAVEFREESV(msg); | |
1738f5c4 CS |
1206 | |
1207 | PUSHMARK(sp); | |
1208 | XPUSHs(msg); | |
1209 | PUTBACK; | |
1210 | perl_call_sv((SV*)cv, G_DISCARD); | |
1211 | ||
774d564b | 1212 | LEAVE; |
1738f5c4 | 1213 | } |
36477c24 | 1214 | } |
1215 | ||
1216 | restartop = die_where(message); | |
1217 | if ((!restartop && was_in_eval) || oldrunlevel > 1) | |
54310121 | 1218 | JMPENV_JUMP(3); |
36477c24 | 1219 | return restartop; |
1220 | } | |
1221 | ||
1222 | #ifdef I_STDARG | |
79072805 | 1223 | void |
71be2cbc | 1224 | croak(const char* pat, ...) |
463ee0b2 | 1225 | #else |
8990e307 LW |
1226 | /*VARARGS0*/ |
1227 | void | |
1228 | croak(pat, va_alist) | |
1229 | char *pat; | |
1230 | va_dcl | |
463ee0b2 | 1231 | #endif |
a687059c LW |
1232 | { |
1233 | va_list args; | |
de3bb511 | 1234 | char *message; |
748a9306 LW |
1235 | HV *stash; |
1236 | GV *gv; | |
1237 | CV *cv; | |
a687059c | 1238 | |
a0d0e21e | 1239 | #ifdef I_STDARG |
8990e307 LW |
1240 | va_start(args, pat); |
1241 | #else | |
a687059c | 1242 | va_start(args); |
8990e307 | 1243 | #endif |
2304df62 | 1244 | message = mess(pat, &args); |
a687059c | 1245 | va_end(args); |
20cec16a | 1246 | if (diehook) { |
1738f5c4 | 1247 | /* sv_2cv might call croak() */ |
20cec16a | 1248 | SV *olddiehook = diehook; |
1738f5c4 CS |
1249 | ENTER; |
1250 | SAVESPTR(diehook); | |
1251 | diehook = Nullsv; | |
20cec16a | 1252 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 CS |
1253 | LEAVE; |
1254 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1255 | dSP; |
774d564b | 1256 | SV *msg; |
1257 | ||
1258 | ENTER; | |
1259 | msg = newSVpv(message, 0); | |
1260 | SvREADONLY_on(msg); | |
1261 | SAVEFREESV(msg); | |
20cec16a | 1262 | |
1263 | PUSHMARK(sp); | |
1738f5c4 | 1264 | XPUSHs(msg); |
20cec16a | 1265 | PUTBACK; |
1266 | perl_call_sv((SV*)cv, G_DISCARD); | |
36477c24 | 1267 | |
774d564b | 1268 | LEAVE; |
20cec16a | 1269 | } |
748a9306 | 1270 | } |
a0d0e21e LW |
1271 | if (in_eval) { |
1272 | restartop = die_where(message); | |
54310121 | 1273 | JMPENV_JUMP(3); |
a0d0e21e | 1274 | } |
760ac839 LW |
1275 | PerlIO_puts(PerlIO_stderr(),message); |
1276 | (void)PerlIO_flush(PerlIO_stderr()); | |
f86702cc | 1277 | my_failure_exit(); |
a687059c LW |
1278 | } |
1279 | ||
8990e307 | 1280 | void |
ecfc5424 | 1281 | #ifdef I_STDARG |
71be2cbc | 1282 | warn(const char* pat,...) |
463ee0b2 | 1283 | #else |
8990e307 LW |
1284 | /*VARARGS0*/ |
1285 | warn(pat,va_alist) | |
71be2cbc | 1286 | const char *pat; |
8990e307 | 1287 | va_dcl |
463ee0b2 | 1288 | #endif |
a687059c LW |
1289 | { |
1290 | va_list args; | |
de3bb511 | 1291 | char *message; |
748a9306 LW |
1292 | HV *stash; |
1293 | GV *gv; | |
1294 | CV *cv; | |
a687059c | 1295 | |
a0d0e21e | 1296 | #ifdef I_STDARG |
8990e307 LW |
1297 | va_start(args, pat); |
1298 | #else | |
a687059c | 1299 | va_start(args); |
8990e307 | 1300 | #endif |
2304df62 | 1301 | message = mess(pat, &args); |
a687059c LW |
1302 | va_end(args); |
1303 | ||
20cec16a | 1304 | if (warnhook) { |
1738f5c4 | 1305 | /* sv_2cv might call warn() */ |
20cec16a | 1306 | SV *oldwarnhook = warnhook; |
1738f5c4 CS |
1307 | ENTER; |
1308 | SAVESPTR(warnhook); | |
1309 | warnhook = Nullsv; | |
20cec16a | 1310 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 CS |
1311 | LEAVE; |
1312 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1313 | dSP; |
774d564b | 1314 | SV *msg; |
1315 | ||
1316 | ENTER; | |
1317 | msg = newSVpv(message, 0); | |
1318 | SvREADONLY_on(msg); | |
1319 | SAVEFREESV(msg); | |
1320 | ||
20cec16a | 1321 | PUSHMARK(sp); |
774d564b | 1322 | XPUSHs(msg); |
20cec16a | 1323 | PUTBACK; |
1324 | perl_call_sv((SV*)cv, G_DISCARD); | |
774d564b | 1325 | |
1326 | LEAVE; | |
20cec16a | 1327 | return; |
1328 | } | |
748a9306 | 1329 | } |
20cec16a | 1330 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c | 1331 | #ifdef LEAKTEST |
20cec16a | 1332 | DEBUG_L(xstat()); |
a687059c | 1333 | #endif |
20cec16a | 1334 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c | 1335 | } |
8d063cd8 | 1336 | |
a0d0e21e | 1337 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
68dc0745 | 1338 | #ifndef _WIN32 |
8d063cd8 | 1339 | void |
7c0587c8 | 1340 | my_setenv(nam,val) |
8d063cd8 LW |
1341 | char *nam, *val; |
1342 | { | |
79072805 | 1343 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 | 1344 | |
fe14fcc3 | 1345 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 LW |
1346 | I32 j; |
1347 | I32 max; | |
fe14fcc3 LW |
1348 | char **tmpenv; |
1349 | ||
de3bb511 | 1350 | /*SUPPRESS 530*/ |
fe14fcc3 LW |
1351 | for (max = i; environ[max]; max++) ; |
1352 | New(901,tmpenv, max+2, char*); | |
1353 | for (j=0; j<max; j++) /* copy environment */ | |
a0d0e21e | 1354 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 LW |
1355 | tmpenv[max] = Nullch; |
1356 | environ = tmpenv; /* tell exec where it is now */ | |
1357 | } | |
a687059c | 1358 | if (!val) { |
e5ebf479 | 1359 | Safefree(environ[i]); |
a687059c LW |
1360 | while (environ[i]) { |
1361 | environ[i] = environ[i+1]; | |
1362 | i++; | |
1363 | } | |
1364 | return; | |
1365 | } | |
8d063cd8 | 1366 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 | 1367 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 LW |
1368 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1369 | } | |
fe14fcc3 LW |
1370 | else |
1371 | Safefree(environ[i]); | |
a687059c | 1372 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 | 1373 | #ifndef MSDOS |
a687059c | 1374 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 LW |
1375 | #else |
1376 | /* MS-DOS requires environment variable names to be in uppercase */ | |
fe14fcc3 LW |
1377 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1378 | * some utilities and applications may break because they only look | |
1379 | * for upper case strings. (Fixed strupr() bug here.)] | |
1380 | */ | |
1381 | strcpy(environ[i],nam); strupr(environ[i]); | |
62b28dd9 LW |
1382 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1383 | #endif /* MSDOS */ | |
8d063cd8 LW |
1384 | } |
1385 | ||
79072805 LW |
1386 | I32 |
1387 | setenv_getix(nam) | |
8d063cd8 LW |
1388 | char *nam; |
1389 | { | |
79072805 | 1390 | register I32 i, len = strlen(nam); |
8d063cd8 LW |
1391 | |
1392 | for (i = 0; environ[i]; i++) { | |
1393 | if (strnEQ(environ[i],nam,len) && environ[i][len] == '=') | |
1394 | break; /* strnEQ must come first to avoid */ | |
1395 | } /* potential SEGV's */ | |
1396 | return i; | |
1397 | } | |
68dc0745 | 1398 | |
1399 | #else /* if _WIN32 */ | |
1400 | ||
1401 | void | |
1402 | my_setenv(nam,val) | |
1403 | char *nam, *val; | |
1404 | { | |
1405 | register char *envstr; | |
1406 | STRLEN namlen = strlen(nam); | |
1407 | STRLEN vallen = strlen(val ? val : ""); | |
1408 | ||
fc36a67e | 1409 | New(904, envstr, namlen + vallen + 3, char); |
68dc0745 | 1410 | (void)sprintf(envstr,"%s=%s",nam,val); |
1411 | if (!vallen) { | |
1412 | /* An attempt to delete the entry. | |
1413 | * We try to fix a Win32 process handling goof: Children | |
1414 | * of the current process will end up seeing the | |
1415 | * grandparent's entry if the current process has never | |
1416 | * modified the entry being deleted. So we call _putenv() | |
1417 | * twice: once to pretend to modify the entry, and the | |
1418 | * second time to actually delete it. GSAR 97-03-19 | |
1419 | */ | |
1420 | envstr[namlen+1] = 'X'; envstr[namlen+2] = '\0'; | |
1421 | (void)_putenv(envstr); | |
1422 | envstr[namlen+1] = '\0'; | |
1423 | } | |
1424 | (void)_putenv(envstr); | |
1425 | } | |
1426 | ||
1427 | #endif /* _WIN32 */ | |
a0d0e21e | 1428 | #endif /* !VMS */ |
378cc40b | 1429 | |
16d20bd9 | 1430 | #ifdef UNLINK_ALL_VERSIONS |
79072805 | 1431 | I32 |
378cc40b LW |
1432 | unlnk(f) /* unlink all versions of a file */ |
1433 | char *f; | |
1434 | { | |
79072805 | 1435 | I32 i; |
378cc40b LW |
1436 | |
1437 | for (i = 0; unlink(f) >= 0; i++) ; | |
1438 | return i ? 0 : -1; | |
1439 | } | |
1440 | #endif | |
1441 | ||
85e6fe83 | 1442 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b | 1443 | char * |
7c0587c8 | 1444 | my_bcopy(from,to,len) |
378cc40b LW |
1445 | register char *from; |
1446 | register char *to; | |
79072805 | 1447 | register I32 len; |
378cc40b LW |
1448 | { |
1449 | char *retval = to; | |
1450 | ||
7c0587c8 LW |
1451 | if (from - to >= 0) { |
1452 | while (len--) | |
1453 | *to++ = *from++; | |
1454 | } | |
1455 | else { | |
1456 | to += len; | |
1457 | from += len; | |
1458 | while (len--) | |
faf8582f | 1459 | *(--to) = *(--from); |
7c0587c8 | 1460 | } |
378cc40b LW |
1461 | return retval; |
1462 | } | |
ffed7fef | 1463 | #endif |
378cc40b | 1464 | |
fc36a67e | 1465 | #ifndef HAS_MEMSET |
1466 | void * | |
1467 | my_memset(loc,ch,len) | |
1468 | register char *loc; | |
1469 | register I32 ch; | |
1470 | register I32 len; | |
1471 | { | |
1472 | char *retval = loc; | |
1473 | ||
1474 | while (len--) | |
1475 | *loc++ = ch; | |
1476 | return retval; | |
1477 | } | |
1478 | #endif | |
1479 | ||
7c0587c8 | 1480 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b | 1481 | char * |
7c0587c8 | 1482 | my_bzero(loc,len) |
378cc40b | 1483 | register char *loc; |
79072805 | 1484 | register I32 len; |
378cc40b LW |
1485 | { |
1486 | char *retval = loc; | |
1487 | ||
1488 | while (len--) | |
1489 | *loc++ = 0; | |
1490 | return retval; | |
1491 | } | |
1492 | #endif | |
7c0587c8 | 1493 | |
36477c24 | 1494 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 | 1495 | I32 |
7c0587c8 | 1496 | my_memcmp(s1,s2,len) |
36477c24 | 1497 | char *s1; |
1498 | char *s2; | |
79072805 | 1499 | register I32 len; |
7c0587c8 | 1500 | { |
36477c24 | 1501 | register U8 *a = (U8 *)s1; |
1502 | register U8 *b = (U8 *)s2; | |
79072805 | 1503 | register I32 tmp; |
7c0587c8 LW |
1504 | |
1505 | while (len--) { | |
36477c24 | 1506 | if (tmp = *a++ - *b++) |
7c0587c8 LW |
1507 | return tmp; |
1508 | } | |
1509 | return 0; | |
1510 | } | |
36477c24 | 1511 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c | 1512 | |
4633a7c4 | 1513 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 | 1514 | #ifndef HAS_VPRINTF |
a687059c | 1515 | |
85e6fe83 | 1516 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1517 | char * |
1518 | #else | |
1519 | int | |
1520 | #endif | |
1521 | vsprintf(dest, pat, args) | |
71be2cbc | 1522 | char *dest; |
1523 | const char *pat; | |
1524 | char *args; | |
a687059c LW |
1525 | { |
1526 | FILE fakebuf; | |
1527 | ||
1528 | fakebuf._ptr = dest; | |
1529 | fakebuf._cnt = 32767; | |
35c8bce7 LW |
1530 | #ifndef _IOSTRG |
1531 | #define _IOSTRG 0 | |
1532 | #endif | |
a687059c LW |
1533 | fakebuf._flag = _IOWRT|_IOSTRG; |
1534 | _doprnt(pat, args, &fakebuf); /* what a kludge */ | |
1535 | (void)putc('\0', &fakebuf); | |
85e6fe83 | 1536 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1537 | return(dest); |
1538 | #else | |
1539 | return 0; /* perl doesn't use return value */ | |
1540 | #endif | |
1541 | } | |
1542 | ||
fe14fcc3 | 1543 | #endif /* HAS_VPRINTF */ |
4633a7c4 | 1544 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c LW |
1545 | |
1546 | #ifdef MYSWAP | |
ffed7fef | 1547 | #if BYTEORDER != 0x4321 |
a687059c | 1548 | short |
748a9306 | 1549 | #ifndef CAN_PROTOTYPE |
a687059c LW |
1550 | my_swap(s) |
1551 | short s; | |
748a9306 LW |
1552 | #else |
1553 | my_swap(short s) | |
1554 | #endif | |
a687059c LW |
1555 | { |
1556 | #if (BYTEORDER & 1) == 0 | |
1557 | short result; | |
1558 | ||
1559 | result = ((s & 255) << 8) + ((s >> 8) & 255); | |
1560 | return result; | |
1561 | #else | |
1562 | return s; | |
1563 | #endif | |
1564 | } | |
1565 | ||
1566 | long | |
748a9306 LW |
1567 | #ifndef CAN_PROTOTYPE |
1568 | my_htonl(l) | |
a687059c | 1569 | register long l; |
748a9306 LW |
1570 | #else |
1571 | my_htonl(long l) | |
1572 | #endif | |
a687059c LW |
1573 | { |
1574 | union { | |
1575 | long result; | |
ffed7fef | 1576 | char c[sizeof(long)]; |
a687059c LW |
1577 | } u; |
1578 | ||
ffed7fef | 1579 | #if BYTEORDER == 0x1234 |
a687059c LW |
1580 | u.c[0] = (l >> 24) & 255; |
1581 | u.c[1] = (l >> 16) & 255; | |
1582 | u.c[2] = (l >> 8) & 255; | |
1583 | u.c[3] = l & 255; | |
1584 | return u.result; | |
1585 | #else | |
ffed7fef | 1586 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1587 | croak("Unknown BYTEORDER\n"); |
a687059c | 1588 | #else |
79072805 LW |
1589 | register I32 o; |
1590 | register I32 s; | |
a687059c | 1591 | |
ffed7fef LW |
1592 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1593 | u.c[o & 0xf] = (l >> s) & 255; | |
a687059c LW |
1594 | } |
1595 | return u.result; | |
1596 | #endif | |
1597 | #endif | |
1598 | } | |
1599 | ||
1600 | long | |
748a9306 LW |
1601 | #ifndef CAN_PROTOTYPE |
1602 | my_ntohl(l) | |
a687059c | 1603 | register long l; |
748a9306 LW |
1604 | #else |
1605 | my_ntohl(long l) | |
1606 | #endif | |
a687059c LW |
1607 | { |
1608 | union { | |
1609 | long l; | |
ffed7fef | 1610 | char c[sizeof(long)]; |
a687059c LW |
1611 | } u; |
1612 | ||
ffed7fef | 1613 | #if BYTEORDER == 0x1234 |
a687059c LW |
1614 | u.c[0] = (l >> 24) & 255; |
1615 | u.c[1] = (l >> 16) & 255; | |
1616 | u.c[2] = (l >> 8) & 255; | |
1617 | u.c[3] = l & 255; | |
1618 | return u.l; | |
1619 | #else | |
ffed7fef | 1620 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1621 | croak("Unknown BYTEORDER\n"); |
a687059c | 1622 | #else |
79072805 LW |
1623 | register I32 o; |
1624 | register I32 s; | |
a687059c LW |
1625 | |
1626 | u.l = l; | |
1627 | l = 0; | |
ffed7fef LW |
1628 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1629 | l |= (u.c[o & 0xf] & 255) << s; | |
a687059c LW |
1630 | } |
1631 | return l; | |
1632 | #endif | |
1633 | #endif | |
1634 | } | |
1635 | ||
ffed7fef | 1636 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 LW |
1637 | #endif /* MYSWAP */ |
1638 | ||
1639 | /* | |
1640 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. | |
1641 | * If these functions are defined, | |
1642 | * the BYTEORDER is neither 0x1234 nor 0x4321. | |
1643 | * However, this is not assumed. | |
1644 | * -DWS | |
1645 | */ | |
1646 | ||
1647 | #define HTOV(name,type) \ | |
1648 | type \ | |
1649 | name (n) \ | |
1650 | register type n; \ | |
1651 | { \ | |
1652 | union { \ | |
1653 | type value; \ | |
1654 | char c[sizeof(type)]; \ | |
1655 | } u; \ | |
79072805 LW |
1656 | register I32 i; \ |
1657 | register I32 s; \ | |
988174c1 LW |
1658 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1659 | u.c[i] = (n >> s) & 0xFF; \ | |
1660 | } \ | |
1661 | return u.value; \ | |
1662 | } | |
1663 | ||
1664 | #define VTOH(name,type) \ | |
1665 | type \ | |
1666 | name (n) \ | |
1667 | register type n; \ | |
1668 | { \ | |
1669 | union { \ | |
1670 | type value; \ | |
1671 | char c[sizeof(type)]; \ | |
1672 | } u; \ | |
79072805 LW |
1673 | register I32 i; \ |
1674 | register I32 s; \ | |
988174c1 LW |
1675 | u.value = n; \ |
1676 | n = 0; \ | |
1677 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ | |
1678 | n += (u.c[i] & 0xFF) << s; \ | |
1679 | } \ | |
1680 | return n; \ | |
1681 | } | |
1682 | ||
1683 | #if defined(HAS_HTOVS) && !defined(htovs) | |
1684 | HTOV(htovs,short) | |
1685 | #endif | |
1686 | #if defined(HAS_HTOVL) && !defined(htovl) | |
1687 | HTOV(htovl,long) | |
1688 | #endif | |
1689 | #if defined(HAS_VTOHS) && !defined(vtohs) | |
1690 | VTOH(vtohs,short) | |
1691 | #endif | |
1692 | #if defined(HAS_VTOHL) && !defined(vtohl) | |
1693 | VTOH(vtohl,long) | |
1694 | #endif | |
a687059c | 1695 | |
5f05dabc | 1696 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
1697 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) | |
760ac839 | 1698 | PerlIO * |
79072805 | 1699 | my_popen(cmd,mode) |
a687059c LW |
1700 | char *cmd; |
1701 | char *mode; | |
1702 | { | |
1703 | int p[2]; | |
79072805 LW |
1704 | register I32 this, that; |
1705 | register I32 pid; | |
1706 | SV *sv; | |
1738f5c4 | 1707 | I32 doexec = strNE(cmd,"-"); |
a687059c | 1708 | |
ddcf38b7 IZ |
1709 | #ifdef OS2 |
1710 | if (doexec) { | |
1711 | return my_syspopen(cmd,mode); | |
1712 | } | |
1713 | #endif | |
a687059c LW |
1714 | if (pipe(p) < 0) |
1715 | return Nullfp; | |
1716 | this = (*mode == 'w'); | |
1717 | that = !this; | |
bbce6d69 | 1718 | if (doexec && tainting) { |
1719 | taint_env(); | |
1720 | taint_proper("Insecure %s%s", "EXEC"); | |
d48672a2 | 1721 | } |
a687059c LW |
1722 | while ((pid = (doexec?vfork():fork())) < 0) { |
1723 | if (errno != EAGAIN) { | |
1724 | close(p[this]); | |
1725 | if (!doexec) | |
463ee0b2 | 1726 | croak("Can't fork"); |
a687059c LW |
1727 | return Nullfp; |
1728 | } | |
1729 | sleep(5); | |
1730 | } | |
1731 | if (pid == 0) { | |
79072805 LW |
1732 | GV* tmpgv; |
1733 | ||
a687059c LW |
1734 | #define THIS that |
1735 | #define THAT this | |
1736 | close(p[THAT]); | |
1737 | if (p[THIS] != (*mode == 'r')) { | |
1738 | dup2(p[THIS], *mode == 'r'); | |
1739 | close(p[THIS]); | |
1740 | } | |
1741 | if (doexec) { | |
a0d0e21e | 1742 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 LW |
1743 | int fd; |
1744 | ||
1745 | #ifndef NOFILE | |
1746 | #define NOFILE 20 | |
1747 | #endif | |
d48672a2 | 1748 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
ae986130 LW |
1749 | close(fd); |
1750 | #endif | |
a687059c LW |
1751 | do_exec(cmd); /* may or may not use the shell */ |
1752 | _exit(1); | |
1753 | } | |
de3bb511 | 1754 | /*SUPPRESS 560*/ |
85e6fe83 | 1755 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 1756 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
9f68db38 | 1757 | forkprocess = 0; |
463ee0b2 | 1758 | hv_clear(pidstatus); /* we have no children */ |
a687059c LW |
1759 | return Nullfp; |
1760 | #undef THIS | |
1761 | #undef THAT | |
1762 | } | |
62b28dd9 | 1763 | do_execfree(); /* free any memory malloced by child on vfork */ |
a687059c | 1764 | close(p[that]); |
62b28dd9 LW |
1765 | if (p[that] < p[this]) { |
1766 | dup2(p[this], p[that]); | |
1767 | close(p[this]); | |
1768 | p[this] = p[that]; | |
1769 | } | |
79072805 | 1770 | sv = *av_fetch(fdpid,p[this],TRUE); |
a0d0e21e | 1771 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 1772 | SvIVX(sv) = pid; |
a687059c | 1773 | forkprocess = pid; |
760ac839 | 1774 | return PerlIO_fdopen(p[this], mode); |
a687059c | 1775 | } |
7c0587c8 | 1776 | #else |
55497cff | 1777 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 | 1778 | FILE *popen(); |
760ac839 | 1779 | PerlIO * |
79072805 | 1780 | my_popen(cmd,mode) |
7c0587c8 LW |
1781 | char *cmd; |
1782 | char *mode; | |
1783 | { | |
760ac839 | 1784 | /* Needs work for PerlIO ! */ |
55497cff | 1785 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1786 | return popen(PerlIO_exportFILE(cmd, 0), mode); | |
7c0587c8 LW |
1787 | } |
1788 | #endif | |
1789 | ||
1790 | #endif /* !DOSISH */ | |
a687059c | 1791 | |
748a9306 | 1792 | #ifdef DUMP_FDS |
79072805 | 1793 | dump_fds(s) |
ae986130 LW |
1794 | char *s; |
1795 | { | |
1796 | int fd; | |
1797 | struct stat tmpstatbuf; | |
1798 | ||
760ac839 | 1799 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 | 1800 | for (fd = 0; fd < 32; fd++) { |
a0d0e21e | 1801 | if (Fstat(fd,&tmpstatbuf) >= 0) |
760ac839 | 1802 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 | 1803 | } |
760ac839 | 1804 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 LW |
1805 | } |
1806 | #endif | |
1807 | ||
fe14fcc3 | 1808 | #ifndef HAS_DUP2 |
fec02dd3 | 1809 | int |
a687059c LW |
1810 | dup2(oldfd,newfd) |
1811 | int oldfd; | |
1812 | int newfd; | |
1813 | { | |
a0d0e21e | 1814 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 AD |
1815 | if (oldfd == newfd) |
1816 | return oldfd; | |
62b28dd9 | 1817 | close(newfd); |
fec02dd3 | 1818 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 | 1819 | #else |
fc36a67e | 1820 | #define DUP2_MAX_FDS 256 |
1821 | int fdtmp[DUP2_MAX_FDS]; | |
79072805 | 1822 | I32 fdx = 0; |
ae986130 LW |
1823 | int fd; |
1824 | ||
fe14fcc3 | 1825 | if (oldfd == newfd) |
fec02dd3 | 1826 | return oldfd; |
a687059c | 1827 | close(newfd); |
fc36a67e | 1828 | /* good enough for low fd's... */ |
1829 | while ((fd = dup(oldfd)) != newfd && fd >= 0) { | |
1830 | if (fdx >= DUP2_MAX_FDS) { | |
1831 | close(fd); | |
1832 | fd = -1; | |
1833 | break; | |
1834 | } | |
ae986130 | 1835 | fdtmp[fdx++] = fd; |
fc36a67e | 1836 | } |
ae986130 LW |
1837 | while (fdx > 0) |
1838 | close(fdtmp[--fdx]); | |
fec02dd3 | 1839 | return fd; |
62b28dd9 | 1840 | #endif |
a687059c LW |
1841 | } |
1842 | #endif | |
1843 | ||
ff68c719 | 1844 | |
1845 | #ifdef HAS_SIGACTION | |
1846 | ||
1847 | Sighandler_t | |
1848 | rsignal(signo, handler) | |
1849 | int signo; | |
1850 | Sighandler_t handler; | |
1851 | { | |
1852 | struct sigaction act, oact; | |
1853 | ||
1854 | act.sa_handler = handler; | |
1855 | sigemptyset(&act.sa_mask); | |
1856 | act.sa_flags = 0; | |
1857 | #ifdef SA_RESTART | |
1858 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
1859 | #endif | |
1860 | if (sigaction(signo, &act, &oact) == -1) | |
36477c24 | 1861 | return SIG_ERR; |
ff68c719 | 1862 | else |
36477c24 | 1863 | return oact.sa_handler; |
ff68c719 | 1864 | } |
1865 | ||
1866 | Sighandler_t | |
1867 | rsignal_state(signo) | |
1868 | int signo; | |
1869 | { | |
1870 | struct sigaction oact; | |
1871 | ||
1872 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) | |
1873 | return SIG_ERR; | |
1874 | else | |
1875 | return oact.sa_handler; | |
1876 | } | |
1877 | ||
1878 | int | |
1879 | rsignal_save(signo, handler, save) | |
1880 | int signo; | |
1881 | Sighandler_t handler; | |
1882 | Sigsave_t *save; | |
1883 | { | |
1884 | struct sigaction act; | |
1885 | ||
1886 | act.sa_handler = handler; | |
1887 | sigemptyset(&act.sa_mask); | |
1888 | act.sa_flags = 0; | |
1889 | #ifdef SA_RESTART | |
1890 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
1891 | #endif | |
1892 | return sigaction(signo, &act, save); | |
1893 | } | |
1894 | ||
1895 | int | |
1896 | rsignal_restore(signo, save) | |
1897 | int signo; | |
1898 | Sigsave_t *save; | |
1899 | { | |
1900 | return sigaction(signo, save, (struct sigaction *)NULL); | |
1901 | } | |
1902 | ||
1903 | #else /* !HAS_SIGACTION */ | |
1904 | ||
1905 | Sighandler_t | |
1906 | rsignal(signo, handler) | |
1907 | int signo; | |
1908 | Sighandler_t handler; | |
1909 | { | |
1910 | return signal(signo, handler); | |
1911 | } | |
1912 | ||
1913 | static int sig_trapped; | |
1914 | ||
1915 | static | |
1916 | Signal_t | |
1917 | sig_trap(signo) | |
1918 | int signo; | |
1919 | { | |
1920 | sig_trapped++; | |
1921 | } | |
1922 | ||
1923 | Sighandler_t | |
1924 | rsignal_state(signo) | |
1925 | int signo; | |
1926 | { | |
1927 | Sighandler_t oldsig; | |
1928 | ||
1929 | sig_trapped = 0; | |
1930 | oldsig = signal(signo, sig_trap); | |
1931 | signal(signo, oldsig); | |
1932 | if (sig_trapped) | |
1933 | kill(getpid(), signo); | |
1934 | return oldsig; | |
1935 | } | |
1936 | ||
1937 | int | |
1938 | rsignal_save(signo, handler, save) | |
1939 | int signo; | |
1940 | Sighandler_t handler; | |
1941 | Sigsave_t *save; | |
1942 | { | |
1943 | *save = signal(signo, handler); | |
1944 | return (*save == SIG_ERR) ? -1 : 0; | |
1945 | } | |
1946 | ||
1947 | int | |
36477c24 | 1948 | rsignal_restore(signo, save) |
ff68c719 | 1949 | int signo; |
1950 | Sigsave_t *save; | |
1951 | { | |
1952 | return (signal(signo, *save) == SIG_ERR) ? -1 : 0; | |
1953 | } | |
1954 | ||
1955 | #endif /* !HAS_SIGACTION */ | |
1956 | ||
5f05dabc | 1957 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
1958 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) | |
79072805 LW |
1959 | I32 |
1960 | my_pclose(ptr) | |
760ac839 | 1961 | PerlIO *ptr; |
a687059c | 1962 | { |
ff68c719 | 1963 | Sigsave_t hstat, istat, qstat; |
a687059c | 1964 | int status; |
a0d0e21e | 1965 | SV **svp; |
20188a90 | 1966 | int pid; |
03136e13 CS |
1967 | bool close_failed; |
1968 | int saved_errno; | |
1969 | #ifdef VMS | |
1970 | int saved_vaxc_errno; | |
1971 | #endif | |
a687059c | 1972 | |
760ac839 | 1973 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 | 1974 | pid = (int)SvIVX(*svp); |
a0d0e21e LW |
1975 | SvREFCNT_dec(*svp); |
1976 | *svp = &sv_undef; | |
ddcf38b7 IZ |
1977 | #ifdef OS2 |
1978 | if (pid == -1) { /* Opened by popen. */ | |
1979 | return my_syspclose(ptr); | |
1980 | } | |
1981 | #endif | |
03136e13 CS |
1982 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
1983 | saved_errno = errno; | |
1984 | #ifdef VMS | |
1985 | saved_vaxc_errno = vaxc$errno; | |
1986 | #endif | |
1987 | } | |
7c0587c8 LW |
1988 | #ifdef UTS |
1989 | if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ | |
1990 | #endif | |
ff68c719 | 1991 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
1992 | rsignal_save(SIGINT, SIG_IGN, &istat); | |
1993 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); | |
748a9306 LW |
1994 | do { |
1995 | pid = wait4pid(pid, &status, 0); | |
1996 | } while (pid == -1 && errno == EINTR); | |
ff68c719 | 1997 | rsignal_restore(SIGHUP, &hstat); |
1998 | rsignal_restore(SIGINT, &istat); | |
1999 | rsignal_restore(SIGQUIT, &qstat); | |
03136e13 CS |
2000 | if (close_failed) { |
2001 | SETERRNO(saved_errno, saved_vaxc_errno); | |
2002 | return -1; | |
2003 | } | |
2004 | return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status)); | |
20188a90 | 2005 | } |
4633a7c4 LW |
2006 | #endif /* !DOSISH */ |
2007 | ||
2008 | #if !defined(DOSISH) || defined(OS2) | |
79072805 | 2009 | I32 |
20188a90 LW |
2010 | wait4pid(pid,statusp,flags) |
2011 | int pid; | |
2012 | int *statusp; | |
2013 | int flags; | |
2014 | { | |
79072805 LW |
2015 | SV *sv; |
2016 | SV** svp; | |
fc36a67e | 2017 | char spid[TYPE_CHARS(int)]; |
20188a90 LW |
2018 | |
2019 | if (!pid) | |
2020 | return -1; | |
20188a90 LW |
2021 | if (pid > 0) { |
2022 | sprintf(spid, "%d", pid); | |
79072805 LW |
2023 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
2024 | if (svp && *svp != &sv_undef) { | |
463ee0b2 | 2025 | *statusp = SvIVX(*svp); |
748a9306 | 2026 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2027 | return pid; |
2028 | } | |
2029 | } | |
2030 | else { | |
79072805 | 2031 | HE *entry; |
20188a90 | 2032 | |
79072805 LW |
2033 | hv_iterinit(pidstatus); |
2034 | if (entry = hv_iternext(pidstatus)) { | |
a0d0e21e | 2035 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 | 2036 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 | 2037 | *statusp = SvIVX(sv); |
20188a90 | 2038 | sprintf(spid, "%d", pid); |
748a9306 | 2039 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2040 | return pid; |
2041 | } | |
2042 | } | |
79072805 LW |
2043 | #ifdef HAS_WAITPID |
2044 | return waitpid(pid,statusp,flags); | |
2045 | #else | |
a0d0e21e LW |
2046 | #ifdef HAS_WAIT4 |
2047 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); | |
2048 | #else | |
2049 | { | |
2050 | I32 result; | |
2051 | if (flags) | |
2052 | croak("Can't do waitpid with flags"); | |
2053 | else { | |
2054 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) | |
2055 | pidgone(result,*statusp); | |
2056 | if (result < 0) | |
2057 | *statusp = -1; | |
2058 | } | |
2059 | return result; | |
a687059c LW |
2060 | } |
2061 | #endif | |
20188a90 | 2062 | #endif |
a687059c | 2063 | } |
7c0587c8 | 2064 | #endif /* !DOSISH */ |
a687059c | 2065 | |
7c0587c8 | 2066 | void |
de3bb511 | 2067 | /*SUPPRESS 590*/ |
a687059c LW |
2068 | pidgone(pid,status) |
2069 | int pid; | |
2070 | int status; | |
2071 | { | |
79072805 | 2072 | register SV *sv; |
fc36a67e | 2073 | char spid[TYPE_CHARS(int)]; |
a687059c | 2074 | |
20188a90 | 2075 | sprintf(spid, "%d", pid); |
79072805 | 2076 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e | 2077 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 2078 | SvIVX(sv) = status; |
20188a90 | 2079 | return; |
a687059c LW |
2080 | } |
2081 | ||
55497cff | 2082 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 | 2083 | int pclose(); |
ddcf38b7 IZ |
2084 | #ifdef HAS_FORK |
2085 | int /* Cannot prototype with I32 | |
2086 | in os2ish.h. */ | |
2087 | my_syspclose(ptr) | |
2088 | #else | |
79072805 LW |
2089 | I32 |
2090 | my_pclose(ptr) | |
ddcf38b7 | 2091 | #endif |
760ac839 | 2092 | PerlIO *ptr; |
a687059c | 2093 | { |
760ac839 LW |
2094 | /* Needs work for PerlIO ! */ |
2095 | FILE *f = PerlIO_findFILE(ptr); | |
2096 | I32 result = pclose(f); | |
2097 | PerlIO_releaseFILE(ptr,f); | |
2098 | return result; | |
a687059c | 2099 | } |
7c0587c8 | 2100 | #endif |
9f68db38 LW |
2101 | |
2102 | void | |
2103 | repeatcpy(to,from,len,count) | |
2104 | register char *to; | |
2105 | register char *from; | |
79072805 LW |
2106 | I32 len; |
2107 | register I32 count; | |
9f68db38 | 2108 | { |
79072805 | 2109 | register I32 todo; |
9f68db38 LW |
2110 | register char *frombase = from; |
2111 | ||
2112 | if (len == 1) { | |
2113 | todo = *from; | |
2114 | while (count-- > 0) | |
2115 | *to++ = todo; | |
2116 | return; | |
2117 | } | |
2118 | while (count-- > 0) { | |
2119 | for (todo = len; todo > 0; todo--) { | |
2120 | *to++ = *from++; | |
2121 | } | |
2122 | from = frombase; | |
2123 | } | |
2124 | } | |
0f85fab0 LW |
2125 | |
2126 | #ifndef CASTNEGFLOAT | |
463ee0b2 | 2127 | U32 |
79072805 | 2128 | cast_ulong(f) |
0f85fab0 LW |
2129 | double f; |
2130 | { | |
2131 | long along; | |
2132 | ||
27e2fb84 | 2133 | #if CASTFLAGS & 2 |
34de22dd LW |
2134 | # define BIGDOUBLE 2147483648.0 |
2135 | if (f >= BIGDOUBLE) | |
2136 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; | |
2137 | #endif | |
0f85fab0 LW |
2138 | if (f >= 0.0) |
2139 | return (unsigned long)f; | |
2140 | along = (long)f; | |
2141 | return (unsigned long)along; | |
2142 | } | |
ed6116ce LW |
2143 | # undef BIGDOUBLE |
2144 | #endif | |
2145 | ||
2146 | #ifndef CASTI32 | |
5d94fbed | 2147 | |
5d94fbed AD |
2148 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2149 | work with the system-supplied definition of ULONG_MAX. The | |
2150 | comparison (f >= ULONG_MAX) always comes out true. It must be a | |
2151 | problem with the compiler constant folding. | |
2152 | ||
2153 | In any case, this workaround should be fine on any two's complement | |
2154 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your | |
2155 | ccflags. | |
2156 | --Andy Dougherty <doughera@lafcol.lafayette.edu> | |
2157 | */ | |
1eb770ff | 2158 | |
2159 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead | |
2160 | of LONG_(MIN/MAX). | |
2161 | -- Kenneth Albanowski <kjahds@kjahds.com> | |
2162 | */ | |
2163 | ||
20cec16a | 2164 | #ifndef MY_UV_MAX |
2165 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) | |
5d94fbed AD |
2166 | #endif |
2167 | ||
ed6116ce LW |
2168 | I32 |
2169 | cast_i32(f) | |
2170 | double f; | |
2171 | { | |
20cec16a | 2172 | if (f >= I32_MAX) |
2173 | return (I32) I32_MAX; | |
2174 | if (f <= I32_MIN) | |
2175 | return (I32) I32_MIN; | |
ed6116ce LW |
2176 | return (I32) f; |
2177 | } | |
a0d0e21e LW |
2178 | |
2179 | IV | |
2180 | cast_iv(f) | |
2181 | double f; | |
2182 | { | |
20cec16a | 2183 | if (f >= IV_MAX) |
2184 | return (IV) IV_MAX; | |
2185 | if (f <= IV_MIN) | |
2186 | return (IV) IV_MIN; | |
a0d0e21e LW |
2187 | return (IV) f; |
2188 | } | |
5d94fbed AD |
2189 | |
2190 | UV | |
2191 | cast_uv(f) | |
2192 | double f; | |
2193 | { | |
20cec16a | 2194 | if (f >= MY_UV_MAX) |
2195 | return (UV) MY_UV_MAX; | |
5d94fbed AD |
2196 | return (UV) f; |
2197 | } | |
2198 | ||
0f85fab0 | 2199 | #endif |
62b28dd9 | 2200 | |
fe14fcc3 | 2201 | #ifndef HAS_RENAME |
79072805 | 2202 | I32 |
62b28dd9 LW |
2203 | same_dirent(a,b) |
2204 | char *a; | |
2205 | char *b; | |
2206 | { | |
93a17b20 LW |
2207 | char *fa = strrchr(a,'/'); |
2208 | char *fb = strrchr(b,'/'); | |
62b28dd9 LW |
2209 | struct stat tmpstatbuf1; |
2210 | struct stat tmpstatbuf2; | |
46fc3d4c | 2211 | SV *tmpsv = sv_newmortal(); |
62b28dd9 LW |
2212 | |
2213 | if (fa) | |
2214 | fa++; | |
2215 | else | |
2216 | fa = a; | |
2217 | if (fb) | |
2218 | fb++; | |
2219 | else | |
2220 | fb = b; | |
2221 | if (strNE(a,b)) | |
2222 | return FALSE; | |
2223 | if (fa == a) | |
46fc3d4c | 2224 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2225 | else |
46fc3d4c | 2226 | sv_setpvn(tmpsv, a, fa - a); |
2227 | if (Stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) | |
62b28dd9 LW |
2228 | return FALSE; |
2229 | if (fb == b) | |
46fc3d4c | 2230 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2231 | else |
46fc3d4c | 2232 | sv_setpvn(tmpsv, b, fb - b); |
2233 | if (Stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) | |
62b28dd9 LW |
2234 | return FALSE; |
2235 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && | |
2236 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; | |
2237 | } | |
fe14fcc3 LW |
2238 | #endif /* !HAS_RENAME */ |
2239 | ||
55497cff | 2240 | UV |
79072805 | 2241 | scan_oct(start, len, retlen) |
fe14fcc3 | 2242 | char *start; |
79072805 LW |
2243 | I32 len; |
2244 | I32 *retlen; | |
fe14fcc3 LW |
2245 | { |
2246 | register char *s = start; | |
55497cff | 2247 | register UV retval = 0; |
2248 | bool overflowed = FALSE; | |
fe14fcc3 | 2249 | |
748a9306 | 2250 | while (len && *s >= '0' && *s <= '7') { |
55497cff | 2251 | register UV n = retval << 3; |
2252 | if (!overflowed && (n >> 3) != retval) { | |
2253 | warn("Integer overflow in octal number"); | |
2254 | overflowed = TRUE; | |
2255 | } | |
2256 | retval = n | (*s++ - '0'); | |
748a9306 | 2257 | len--; |
fe14fcc3 | 2258 | } |
748a9306 LW |
2259 | if (dowarn && len && (*s == '8' || *s == '9')) |
2260 | warn("Illegal octal digit ignored"); | |
fe14fcc3 LW |
2261 | *retlen = s - start; |
2262 | return retval; | |
2263 | } | |
2264 | ||
71be2cbc | 2265 | UV |
79072805 | 2266 | scan_hex(start, len, retlen) |
fe14fcc3 | 2267 | char *start; |
79072805 LW |
2268 | I32 len; |
2269 | I32 *retlen; | |
fe14fcc3 LW |
2270 | { |
2271 | register char *s = start; | |
55497cff | 2272 | register UV retval = 0; |
2273 | bool overflowed = FALSE; | |
fe14fcc3 LW |
2274 | char *tmp; |
2275 | ||
93a17b20 | 2276 | while (len-- && *s && (tmp = strchr(hexdigit, *s))) { |
55497cff | 2277 | register UV n = retval << 4; |
2278 | if (!overflowed && (n >> 4) != retval) { | |
2279 | warn("Integer overflow in hex number"); | |
2280 | overflowed = TRUE; | |
2281 | } | |
2282 | retval = n | (tmp - hexdigit) & 15; | |
fe14fcc3 LW |
2283 | s++; |
2284 | } | |
2285 | *retlen = s - start; | |
2286 | return retval; | |
2287 | } | |
760ac839 LW |
2288 | |
2289 | ||
2290 | #ifdef HUGE_VAL | |
2291 | /* | |
2292 | * This hack is to force load of "huge" support from libm.a | |
2293 | * So it is in perl for (say) POSIX to use. | |
2294 | * Needed for SunOS with Sun's 'acc' for example. | |
2295 | */ | |
2296 | double | |
2297 | Perl_huge() | |
2298 | { | |
2299 | return HUGE_VAL; | |
2300 | } | |
2301 | #endif |