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 | |
e1dfb34b | 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 | 55 | #ifdef LEAKTEST |
a0d0e21e | 56 | |
8c52afec IZ |
57 | static void xstat _((int)); |
58 | long xcount[MAXXCOUNT]; | |
59 | long lastxcount[MAXXCOUNT]; | |
60 | long xycount[MAXXCOUNT][MAXYCOUNT]; | |
61 | long lastxycount[MAXXCOUNT][MAXYCOUNT]; | |
62 | ||
a0d0e21e | 63 | #endif |
a863c7d1 | 64 | |
55497cff | 65 | #ifndef MYMALLOC |
de3bb511 | 66 | |
8d063cd8 LW |
67 | /* paranoid version of malloc */ |
68 | ||
a687059c LW |
69 | /* NOTE: Do not call the next three routines directly. Use the macros |
70 | * in handy.h, so that we can easily redefine everything to do tracking of | |
71 | * allocated hunks back to the original New to track down any memory leaks. | |
20cec16a | 72 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c LW |
73 | */ |
74 | ||
bd4080b3 | 75 | Malloc_t |
f0f333f4 | 76 | safemalloc(MEM_SIZE size) |
8d063cd8 | 77 | { |
bd4080b3 | 78 | Malloc_t ptr; |
55497cff | 79 | #ifdef HAS_64K_LIMIT |
62b28dd9 | 80 | if (size > 0xffff) { |
760ac839 | 81 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
79072805 | 82 | my_exit(1); |
62b28dd9 | 83 | } |
55497cff | 84 | #endif /* HAS_64K_LIMIT */ |
34de22dd LW |
85 | #ifdef DEBUGGING |
86 | if ((long)size < 0) | |
463ee0b2 | 87 | croak("panic: malloc"); |
34de22dd | 88 | #endif |
6ad3d225 | 89 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 | 90 | #if !(defined(I286) || defined(atarist)) |
3280af22 | 91 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); |
79072805 | 92 | #else |
6b88bc9c | 93 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); |
8d063cd8 LW |
94 | #endif |
95 | if (ptr != Nullch) | |
96 | return ptr; | |
3280af22 | 97 | else if (PL_nomemok) |
7c0587c8 | 98 | return Nullch; |
8d063cd8 | 99 | else { |
22c35a8c | 100 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
79072805 | 101 | my_exit(1); |
4e35701f | 102 | return Nullch; |
8d063cd8 LW |
103 | } |
104 | /*NOTREACHED*/ | |
105 | } | |
106 | ||
107 | /* paranoid version of realloc */ | |
108 | ||
bd4080b3 | 109 | Malloc_t |
f0f333f4 | 110 | saferealloc(Malloc_t where,MEM_SIZE size) |
8d063cd8 | 111 | { |
bd4080b3 | 112 | Malloc_t ptr; |
ecfc5424 | 113 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
6ad3d225 | 114 | Malloc_t PerlMem_realloc(); |
ecfc5424 | 115 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 | 116 | |
55497cff | 117 | #ifdef HAS_64K_LIMIT |
5f05dabc | 118 | if (size > 0xffff) { |
119 | PerlIO_printf(PerlIO_stderr(), | |
120 | "Reallocation too large: %lx\n", size) FLUSH; | |
121 | my_exit(1); | |
122 | } | |
55497cff | 123 | #endif /* HAS_64K_LIMIT */ |
7614df0c JD |
124 | if (!size) { |
125 | safefree(where); | |
126 | return NULL; | |
127 | } | |
128 | ||
378cc40b | 129 | if (!where) |
7614df0c | 130 | return safemalloc(size); |
34de22dd LW |
131 | #ifdef DEBUGGING |
132 | if ((long)size < 0) | |
463ee0b2 | 133 | croak("panic: realloc"); |
34de22dd | 134 | #endif |
7614df0c | 135 | ptr = PerlMem_realloc(where,size); |
79072805 LW |
136 | |
137 | #if !(defined(I286) || defined(atarist)) | |
138 | DEBUG_m( { | |
3280af22 NIS |
139 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,PL_an++); |
140 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size); | |
79072805 LW |
141 | } ) |
142 | #else | |
143 | DEBUG_m( { | |
6b88bc9c GS |
144 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,PL_an++); |
145 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size); | |
79072805 | 146 | } ) |
8d063cd8 | 147 | #endif |
79072805 | 148 | |
8d063cd8 LW |
149 | if (ptr != Nullch) |
150 | return ptr; | |
3280af22 | 151 | else if (PL_nomemok) |
7c0587c8 | 152 | return Nullch; |
8d063cd8 | 153 | else { |
22c35a8c | 154 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
79072805 | 155 | my_exit(1); |
4e35701f | 156 | return Nullch; |
8d063cd8 LW |
157 | } |
158 | /*NOTREACHED*/ | |
159 | } | |
160 | ||
161 | /* safe version of free */ | |
162 | ||
54310121 | 163 | Free_t |
f0f333f4 | 164 | safefree(Malloc_t where) |
8d063cd8 | 165 | { |
79072805 | 166 | #if !(defined(I286) || defined(atarist)) |
3280af22 | 167 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,PL_an++)); |
79072805 | 168 | #else |
6b88bc9c | 169 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,PL_an++)); |
8d063cd8 | 170 | #endif |
378cc40b | 171 | if (where) { |
de3bb511 | 172 | /*SUPPRESS 701*/ |
6ad3d225 | 173 | PerlMem_free(where); |
378cc40b | 174 | } |
8d063cd8 LW |
175 | } |
176 | ||
1050c9ca | 177 | /* safe version of calloc */ |
178 | ||
bd4080b3 | 179 | Malloc_t |
f0f333f4 | 180 | safecalloc(MEM_SIZE count, MEM_SIZE size) |
1050c9ca | 181 | { |
bd4080b3 | 182 | Malloc_t ptr; |
1050c9ca | 183 | |
55497cff | 184 | #ifdef HAS_64K_LIMIT |
5f05dabc | 185 | if (size * count > 0xffff) { |
186 | PerlIO_printf(PerlIO_stderr(), | |
187 | "Allocation too large: %lx\n", size * count) FLUSH; | |
188 | my_exit(1); | |
189 | } | |
55497cff | 190 | #endif /* HAS_64K_LIMIT */ |
1050c9ca | 191 | #ifdef DEBUGGING |
192 | if ((long)size < 0 || (long)count < 0) | |
193 | croak("panic: calloc"); | |
194 | #endif | |
0b7c1c42 | 195 | size *= count; |
6ad3d225 | 196 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
1050c9ca | 197 | #if !(defined(I286) || defined(atarist)) |
3280af22 | 198 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); |
1050c9ca | 199 | #else |
6b88bc9c | 200 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); |
1050c9ca | 201 | #endif |
1050c9ca | 202 | if (ptr != Nullch) { |
203 | memset((void*)ptr, 0, size); | |
204 | return ptr; | |
205 | } | |
3280af22 | 206 | else if (PL_nomemok) |
1050c9ca | 207 | return Nullch; |
208 | else { | |
22c35a8c | 209 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
1050c9ca | 210 | my_exit(1); |
4e35701f | 211 | return Nullch; |
1050c9ca | 212 | } |
213 | /*NOTREACHED*/ | |
214 | } | |
215 | ||
55497cff | 216 | #endif /* !MYMALLOC */ |
de3bb511 | 217 | |
a687059c LW |
218 | #ifdef LEAKTEST |
219 | ||
8c52afec IZ |
220 | struct mem_test_strut { |
221 | union { | |
222 | long type; | |
223 | char c[2]; | |
224 | } u; | |
225 | long size; | |
226 | }; | |
227 | ||
228 | # define ALIGN sizeof(struct mem_test_strut) | |
229 | ||
230 | # define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size) | |
231 | # define typeof_chunk(ch) \ | |
232 | (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100) | |
233 | # define set_typeof_chunk(ch,t) \ | |
234 | (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100) | |
235 | #define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \ | |
236 | ? MAXYCOUNT - 1 \ | |
237 | : ( (size) > 40 \ | |
238 | ? ((size) - 1)/8 + 5 \ | |
239 | : ((size) - 1)/4)) | |
8d063cd8 | 240 | |
bd4080b3 | 241 | Malloc_t |
f0f333f4 | 242 | safexmalloc(I32 x, MEM_SIZE size) |
8d063cd8 | 243 | { |
8c52afec | 244 | register char* where = (char*)safemalloc(size + ALIGN); |
8d063cd8 | 245 | |
8c52afec IZ |
246 | xcount[x] += size; |
247 | xycount[x][SIZE_TO_Y(size)]++; | |
248 | set_typeof_chunk(where, x); | |
249 | sizeof_chunk(where) = size; | |
250 | return (Malloc_t)(where + ALIGN); | |
8d063cd8 | 251 | } |
8d063cd8 | 252 | |
bd4080b3 | 253 | Malloc_t |
8c52afec | 254 | safexrealloc(Malloc_t wh, MEM_SIZE size) |
a687059c | 255 | { |
8c52afec IZ |
256 | char *where = (char*)wh; |
257 | ||
258 | if (!wh) | |
259 | return safexmalloc(0,size); | |
260 | ||
261 | { | |
262 | MEM_SIZE old = sizeof_chunk(where - ALIGN); | |
263 | int t = typeof_chunk(where - ALIGN); | |
264 | register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN); | |
265 | ||
266 | xycount[t][SIZE_TO_Y(old)]--; | |
267 | xycount[t][SIZE_TO_Y(size)]++; | |
268 | xcount[t] += size - old; | |
269 | sizeof_chunk(new) = size; | |
270 | return (Malloc_t)(new + ALIGN); | |
271 | } | |
a687059c LW |
272 | } |
273 | ||
274 | void | |
8c52afec | 275 | safexfree(Malloc_t wh) |
a687059c | 276 | { |
79072805 | 277 | I32 x; |
8c52afec IZ |
278 | char *where = (char*)wh; |
279 | MEM_SIZE size; | |
280 | ||
a687059c LW |
281 | if (!where) |
282 | return; | |
283 | where -= ALIGN; | |
8c52afec | 284 | size = sizeof_chunk(where); |
a687059c | 285 | x = where[0] + 100 * where[1]; |
8c52afec IZ |
286 | xcount[x] -= size; |
287 | xycount[x][SIZE_TO_Y(size)]--; | |
a687059c LW |
288 | safefree(where); |
289 | } | |
290 | ||
bd4080b3 | 291 | Malloc_t |
f0f333f4 | 292 | safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size) |
1050c9ca | 293 | { |
8c52afec IZ |
294 | register char * where = (char*)safexmalloc(x, size * count + ALIGN); |
295 | xcount[x] += size; | |
296 | xycount[x][SIZE_TO_Y(size)]++; | |
297 | memset((void*)(where + ALIGN), 0, size * count); | |
298 | set_typeof_chunk(where, x); | |
299 | sizeof_chunk(where) = size; | |
300 | return (Malloc_t)(where + ALIGN); | |
1050c9ca | 301 | } |
302 | ||
7c0587c8 | 303 | static void |
8c52afec | 304 | xstat(int flag) |
8d063cd8 | 305 | { |
8c52afec IZ |
306 | register I32 i, j, total = 0; |
307 | I32 subtot[MAXYCOUNT]; | |
8d063cd8 | 308 | |
8c52afec IZ |
309 | for (j = 0; j < MAXYCOUNT; j++) { |
310 | subtot[j] = 0; | |
311 | } | |
312 | ||
313 | PerlIO_printf(PerlIO_stderr(), " Id subtot 4 8 12 16 20 24 28 32 36 40 48 56 64 72 80 80+\n", total); | |
a687059c | 314 | for (i = 0; i < MAXXCOUNT; i++) { |
8c52afec IZ |
315 | total += xcount[i]; |
316 | for (j = 0; j < MAXYCOUNT; j++) { | |
317 | subtot[j] += xycount[i][j]; | |
318 | } | |
319 | if (flag == 0 | |
320 | ? xcount[i] /* Have something */ | |
321 | : (flag == 2 | |
322 | ? xcount[i] != lastxcount[i] /* Changed */ | |
323 | : xcount[i] > lastxcount[i])) { /* Growed */ | |
324 | PerlIO_printf(PerlIO_stderr(),"%2d %02d %7ld ", i / 100, i % 100, | |
325 | flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]); | |
a687059c | 326 | lastxcount[i] = xcount[i]; |
8c52afec IZ |
327 | for (j = 0; j < MAXYCOUNT; j++) { |
328 | if ( flag == 0 | |
329 | ? xycount[i][j] /* Have something */ | |
330 | : (flag == 2 | |
331 | ? xycount[i][j] != lastxycount[i][j] /* Changed */ | |
332 | : xycount[i][j] > lastxycount[i][j])) { /* Growed */ | |
333 | PerlIO_printf(PerlIO_stderr(),"%3ld ", | |
334 | flag == 2 | |
335 | ? xycount[i][j] - lastxycount[i][j] | |
336 | : xycount[i][j]); | |
337 | lastxycount[i][j] = xycount[i][j]; | |
338 | } else { | |
339 | PerlIO_printf(PerlIO_stderr(), " . ", xycount[i][j]); | |
340 | } | |
341 | } | |
342 | PerlIO_printf(PerlIO_stderr(), "\n"); | |
343 | } | |
344 | } | |
345 | if (flag != 2) { | |
346 | PerlIO_printf(PerlIO_stderr(), "Total %7ld ", total); | |
347 | for (j = 0; j < MAXYCOUNT; j++) { | |
348 | if (subtot[j]) { | |
349 | PerlIO_printf(PerlIO_stderr(), "%3ld ", subtot[j]); | |
350 | } else { | |
351 | PerlIO_printf(PerlIO_stderr(), " . "); | |
352 | } | |
8d063cd8 | 353 | } |
8c52afec | 354 | PerlIO_printf(PerlIO_stderr(), "\n"); |
8d063cd8 | 355 | } |
8d063cd8 | 356 | } |
a687059c LW |
357 | |
358 | #endif /* LEAKTEST */ | |
8d063cd8 LW |
359 | |
360 | /* copy a string up to some (non-backslashed) delimiter, if any */ | |
361 | ||
362 | char * | |
8ac85365 | 363 | delimcpy(register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen) |
8d063cd8 | 364 | { |
fc36a67e | 365 | register I32 tolen; |
366 | for (tolen = 0; from < fromend; from++, tolen++) { | |
378cc40b LW |
367 | if (*from == '\\') { |
368 | if (from[1] == delim) | |
369 | from++; | |
fc36a67e | 370 | else { |
371 | if (to < toend) | |
372 | *to++ = *from; | |
373 | tolen++; | |
374 | from++; | |
375 | } | |
378cc40b | 376 | } |
bedebaa5 | 377 | else if (*from == delim) |
8d063cd8 | 378 | break; |
fc36a67e | 379 | if (to < toend) |
380 | *to++ = *from; | |
8d063cd8 | 381 | } |
bedebaa5 CS |
382 | if (to < toend) |
383 | *to = '\0'; | |
fc36a67e | 384 | *retlen = tolen; |
8d063cd8 LW |
385 | return from; |
386 | } | |
387 | ||
388 | /* return ptr to little string in big string, NULL if not found */ | |
378cc40b | 389 | /* This routine was donated by Corey Satten. */ |
8d063cd8 LW |
390 | |
391 | char * | |
8ac85365 | 392 | instr(register char *big, register char *little) |
378cc40b LW |
393 | { |
394 | register char *s, *x; | |
79072805 | 395 | register I32 first; |
378cc40b | 396 | |
a687059c LW |
397 | if (!little) |
398 | return big; | |
399 | first = *little++; | |
378cc40b LW |
400 | if (!first) |
401 | return big; | |
402 | while (*big) { | |
403 | if (*big++ != first) | |
404 | continue; | |
405 | for (x=big,s=little; *s; /**/ ) { | |
406 | if (!*x) | |
407 | return Nullch; | |
408 | if (*s++ != *x++) { | |
409 | s--; | |
410 | break; | |
411 | } | |
412 | } | |
413 | if (!*s) | |
414 | return big-1; | |
415 | } | |
416 | return Nullch; | |
417 | } | |
8d063cd8 | 418 | |
a687059c LW |
419 | /* same as instr but allow embedded nulls */ |
420 | ||
421 | char * | |
8ac85365 | 422 | ninstr(register char *big, register char *bigend, char *little, char *lend) |
8d063cd8 | 423 | { |
a687059c | 424 | register char *s, *x; |
79072805 | 425 | register I32 first = *little; |
a687059c | 426 | register char *littleend = lend; |
378cc40b | 427 | |
a0d0e21e | 428 | if (!first && little >= littleend) |
a687059c | 429 | return big; |
de3bb511 LW |
430 | if (bigend - big < littleend - little) |
431 | return Nullch; | |
a687059c LW |
432 | bigend -= littleend - little++; |
433 | while (big <= bigend) { | |
434 | if (*big++ != first) | |
435 | continue; | |
436 | for (x=big,s=little; s < littleend; /**/ ) { | |
437 | if (*s++ != *x++) { | |
438 | s--; | |
439 | break; | |
440 | } | |
441 | } | |
442 | if (s >= littleend) | |
443 | return big-1; | |
378cc40b | 444 | } |
a687059c LW |
445 | return Nullch; |
446 | } | |
447 | ||
448 | /* reverse of the above--find last substring */ | |
449 | ||
450 | char * | |
8ac85365 | 451 | rninstr(register char *big, char *bigend, char *little, char *lend) |
a687059c LW |
452 | { |
453 | register char *bigbeg; | |
454 | register char *s, *x; | |
79072805 | 455 | register I32 first = *little; |
a687059c LW |
456 | register char *littleend = lend; |
457 | ||
a0d0e21e | 458 | if (!first && little >= littleend) |
a687059c LW |
459 | return bigend; |
460 | bigbeg = big; | |
461 | big = bigend - (littleend - little++); | |
462 | while (big >= bigbeg) { | |
463 | if (*big-- != first) | |
464 | continue; | |
465 | for (x=big+2,s=little; s < littleend; /**/ ) { | |
466 | if (*s++ != *x++) { | |
467 | s--; | |
468 | break; | |
469 | } | |
470 | } | |
471 | if (s >= littleend) | |
472 | return big+1; | |
378cc40b | 473 | } |
a687059c | 474 | return Nullch; |
378cc40b | 475 | } |
a687059c | 476 | |
bbce6d69 | 477 | /* |
478 | * Set up for a new ctype locale. | |
479 | */ | |
55497cff | 480 | void |
8ac85365 | 481 | perl_new_ctype(char *newctype) |
ef7eada9 | 482 | { |
36477c24 | 483 | #ifdef USE_LOCALE_CTYPE |
484 | ||
bbce6d69 | 485 | int i; |
ef7eada9 | 486 | |
bbce6d69 | 487 | for (i = 0; i < 256; i++) { |
488 | if (isUPPER_LC(i)) | |
22c35a8c | 489 | PL_fold_locale[i] = toLOWER_LC(i); |
bbce6d69 | 490 | else if (isLOWER_LC(i)) |
22c35a8c | 491 | PL_fold_locale[i] = toUPPER_LC(i); |
bbce6d69 | 492 | else |
22c35a8c | 493 | PL_fold_locale[i] = i; |
bbce6d69 | 494 | } |
bbce6d69 | 495 | |
36477c24 | 496 | #endif /* USE_LOCALE_CTYPE */ |
497 | } | |
bbce6d69 | 498 | |
499 | /* | |
500 | * Set up for a new collation locale. | |
501 | */ | |
502 | void | |
8ac85365 | 503 | perl_new_collate(char *newcoll) |
bbce6d69 | 504 | { |
36477c24 | 505 | #ifdef USE_LOCALE_COLLATE |
506 | ||
bbce6d69 | 507 | if (! newcoll) { |
3280af22 NIS |
508 | if (PL_collation_name) { |
509 | ++PL_collation_ix; | |
510 | Safefree(PL_collation_name); | |
511 | PL_collation_name = NULL; | |
512 | PL_collation_standard = TRUE; | |
513 | PL_collxfrm_base = 0; | |
514 | PL_collxfrm_mult = 2; | |
bbce6d69 | 515 | } |
516 | return; | |
517 | } | |
518 | ||
3280af22 NIS |
519 | if (! PL_collation_name || strNE(PL_collation_name, newcoll)) { |
520 | ++PL_collation_ix; | |
521 | Safefree(PL_collation_name); | |
522 | PL_collation_name = savepv(newcoll); | |
523 | PL_collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); | |
bbce6d69 | 524 | |
bbce6d69 | 525 | { |
526 | /* 2: at most so many chars ('a', 'b'). */ | |
527 | /* 50: surely no system expands a char more. */ | |
528 | #define XFRMBUFSIZE (2 * 50) | |
529 | char xbuf[XFRMBUFSIZE]; | |
530 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); | |
531 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); | |
532 | SSize_t mult = fb - fa; | |
533 | if (mult < 1) | |
534 | croak("strxfrm() gets absurd"); | |
3280af22 NIS |
535 | PL_collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
536 | PL_collxfrm_mult = mult; | |
bbce6d69 | 537 | } |
bbce6d69 | 538 | } |
bbce6d69 | 539 | |
36477c24 | 540 | #endif /* USE_LOCALE_COLLATE */ |
541 | } | |
bbce6d69 | 542 | |
543 | /* | |
544 | * Set up for a new numeric locale. | |
545 | */ | |
546 | void | |
8ac85365 | 547 | perl_new_numeric(char *newnum) |
bbce6d69 | 548 | { |
36477c24 | 549 | #ifdef USE_LOCALE_NUMERIC |
550 | ||
bbce6d69 | 551 | if (! newnum) { |
3280af22 NIS |
552 | if (PL_numeric_name) { |
553 | Safefree(PL_numeric_name); | |
554 | PL_numeric_name = NULL; | |
555 | PL_numeric_standard = TRUE; | |
556 | PL_numeric_local = TRUE; | |
bbce6d69 | 557 | } |
558 | return; | |
559 | } | |
560 | ||
3280af22 NIS |
561 | if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) { |
562 | Safefree(PL_numeric_name); | |
563 | PL_numeric_name = savepv(newnum); | |
564 | PL_numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); | |
565 | PL_numeric_local = TRUE; | |
bbce6d69 | 566 | } |
36477c24 | 567 | |
568 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 569 | } |
570 | ||
571 | void | |
8ac85365 | 572 | perl_set_numeric_standard(void) |
bbce6d69 | 573 | { |
5f05dabc | 574 | #ifdef USE_LOCALE_NUMERIC |
575 | ||
3280af22 | 576 | if (! PL_numeric_standard) { |
bbce6d69 | 577 | setlocale(LC_NUMERIC, "C"); |
3280af22 NIS |
578 | PL_numeric_standard = TRUE; |
579 | PL_numeric_local = FALSE; | |
bbce6d69 | 580 | } |
5f05dabc | 581 | |
582 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 583 | } |
584 | ||
585 | void | |
8ac85365 | 586 | perl_set_numeric_local(void) |
bbce6d69 | 587 | { |
5f05dabc | 588 | #ifdef USE_LOCALE_NUMERIC |
589 | ||
3280af22 NIS |
590 | if (! PL_numeric_local) { |
591 | setlocale(LC_NUMERIC, PL_numeric_name); | |
592 | PL_numeric_standard = FALSE; | |
593 | PL_numeric_local = TRUE; | |
bbce6d69 | 594 | } |
bbce6d69 | 595 | |
36477c24 | 596 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 597 | } |
36477c24 | 598 | |
bbce6d69 | 599 | |
36477c24 | 600 | /* |
601 | * Initialize locale awareness. | |
602 | */ | |
f0c5b223 | 603 | int |
8ac85365 | 604 | perl_init_i18nl10n(int printwarn) |
f0c5b223 TB |
605 | { |
606 | int ok = 1; | |
607 | /* returns | |
608 | * 1 = set ok or not applicable, | |
609 | * 0 = fallback to C locale, | |
610 | * -1 = fallback to C locale failed | |
611 | */ | |
bbce6d69 | 612 | |
36477c24 | 613 | #ifdef USE_LOCALE |
bbce6d69 | 614 | |
36477c24 | 615 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 616 | char *curctype = NULL; |
36477c24 | 617 | #endif /* USE_LOCALE_CTYPE */ |
618 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 619 | char *curcoll = NULL; |
36477c24 | 620 | #endif /* USE_LOCALE_COLLATE */ |
621 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 622 | char *curnum = NULL; |
36477c24 | 623 | #endif /* USE_LOCALE_NUMERIC */ |
76e3520e GS |
624 | char *lc_all = PerlEnv_getenv("LC_ALL"); |
625 | char *lang = PerlEnv_getenv("LANG"); | |
bbce6d69 | 626 | bool setlocale_failure = FALSE; |
f0c5b223 | 627 | |
02b32252 CS |
628 | #ifdef LOCALE_ENVIRON_REQUIRED |
629 | ||
630 | /* | |
631 | * Ultrix setlocale(..., "") fails if there are no environment | |
632 | * variables from which to get a locale name. | |
633 | */ | |
634 | ||
635 | bool done = FALSE; | |
636 | ||
637 | #ifdef LC_ALL | |
638 | if (lang) { | |
639 | if (setlocale(LC_ALL, "")) | |
640 | done = TRUE; | |
641 | else | |
642 | setlocale_failure = TRUE; | |
643 | } | |
0644c9cb | 644 | if (!setlocale_failure) { |
02b32252 | 645 | #ifdef USE_LOCALE_CTYPE |
0644c9cb IS |
646 | if (! (curctype = |
647 | setlocale(LC_CTYPE, | |
648 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) | |
02b32252 CS |
649 | ? "" : Nullch))) |
650 | setlocale_failure = TRUE; | |
651 | #endif /* USE_LOCALE_CTYPE */ | |
652 | #ifdef USE_LOCALE_COLLATE | |
0644c9cb IS |
653 | if (! (curcoll = |
654 | setlocale(LC_COLLATE, | |
655 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) | |
02b32252 CS |
656 | ? "" : Nullch))) |
657 | setlocale_failure = TRUE; | |
658 | #endif /* USE_LOCALE_COLLATE */ | |
659 | #ifdef USE_LOCALE_NUMERIC | |
0644c9cb IS |
660 | if (! (curnum = |
661 | setlocale(LC_NUMERIC, | |
662 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) | |
02b32252 CS |
663 | ? "" : Nullch))) |
664 | setlocale_failure = TRUE; | |
665 | #endif /* USE_LOCALE_NUMERIC */ | |
666 | } | |
667 | ||
0644c9cb | 668 | #endif /* LC_ALL */ |
02b32252 | 669 | |
0644c9cb | 670 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
5f05dabc | 671 | |
0644c9cb | 672 | #ifdef LC_ALL |
bbce6d69 | 673 | if (! setlocale(LC_ALL, "")) |
674 | setlocale_failure = TRUE; | |
0644c9cb | 675 | #endif /* LC_ALL */ |
bbce6d69 | 676 | |
0644c9cb | 677 | if (!setlocale_failure) { |
36477c24 | 678 | #ifdef USE_LOCALE_CTYPE |
0644c9cb IS |
679 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
680 | setlocale_failure = TRUE; | |
36477c24 | 681 | #endif /* USE_LOCALE_CTYPE */ |
682 | #ifdef USE_LOCALE_COLLATE | |
0644c9cb IS |
683 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
684 | setlocale_failure = TRUE; | |
36477c24 | 685 | #endif /* USE_LOCALE_COLLATE */ |
686 | #ifdef USE_LOCALE_NUMERIC | |
0644c9cb IS |
687 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
688 | setlocale_failure = TRUE; | |
36477c24 | 689 | #endif /* USE_LOCALE_NUMERIC */ |
0644c9cb | 690 | } |
02b32252 | 691 | |
5f05dabc | 692 | if (setlocale_failure) { |
693 | char *p; | |
694 | bool locwarn = (printwarn > 1 || | |
695 | printwarn && | |
76e3520e | 696 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a | 697 | |
5f05dabc | 698 | if (locwarn) { |
699 | #ifdef LC_ALL | |
700 | ||
701 | PerlIO_printf(PerlIO_stderr(), | |
702 | "perl: warning: Setting locale failed.\n"); | |
703 | ||
704 | #else /* !LC_ALL */ | |
705 | ||
ef7eada9 | 706 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 707 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 | 708 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 709 | if (! curctype) |
5f05dabc | 710 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 | 711 | #endif /* USE_LOCALE_CTYPE */ |
712 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 713 | if (! curcoll) |
5f05dabc | 714 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 | 715 | #endif /* USE_LOCALE_COLLATE */ |
716 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 717 | if (! curnum) |
5f05dabc | 718 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 | 719 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 720 | PerlIO_printf(PerlIO_stderr(), "\n"); |
721 | ||
5f05dabc | 722 | #endif /* LC_ALL */ |
723 | ||
760ac839 | 724 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 725 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 JH |
726 | |
727 | PerlIO_printf(PerlIO_stderr(), | |
bbce6d69 | 728 | "\tLC_ALL = %c%s%c,\n", |
729 | lc_all ? '"' : '(', | |
730 | lc_all ? lc_all : "unset", | |
731 | lc_all ? '"' : ')'); | |
5f05dabc | 732 | |
733 | { | |
734 | char **e; | |
735 | for (e = environ; *e; e++) { | |
736 | if (strnEQ(*e, "LC_", 3) | |
737 | && strnNE(*e, "LC_ALL=", 7) | |
738 | && (p = strchr(*e, '='))) | |
739 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", | |
fb73857a | 740 | (int)(p - *e), *e, p + 1); |
5f05dabc | 741 | } |
742 | } | |
743 | ||
ef7eada9 | 744 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 745 | "\tLANG = %c%s%c\n", |
5f05dabc | 746 | lang ? '"' : '(', |
bbce6d69 | 747 | lang ? lang : "unset", |
748 | lang ? '"' : ')'); | |
ef7eada9 | 749 | |
bbce6d69 | 750 | PerlIO_printf(PerlIO_stderr(), |
751 | " are supported and installed on your system.\n"); | |
5f05dabc | 752 | } |
ef7eada9 | 753 | |
5f05dabc | 754 | #ifdef LC_ALL |
755 | ||
756 | if (setlocale(LC_ALL, "C")) { | |
757 | if (locwarn) | |
758 | PerlIO_printf(PerlIO_stderr(), | |
759 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
bbce6d69 | 760 | ok = 0; |
ef7eada9 | 761 | } |
5f05dabc | 762 | else { |
763 | if (locwarn) | |
764 | PerlIO_printf(PerlIO_stderr(), | |
765 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
766 | ok = -1; | |
767 | } | |
bbce6d69 | 768 | |
5f05dabc | 769 | #else /* ! LC_ALL */ |
770 | ||
771 | if (0 | |
36477c24 | 772 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 773 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 | 774 | #endif /* USE_LOCALE_CTYPE */ |
775 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 776 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 | 777 | #endif /* USE_LOCALE_COLLATE */ |
778 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 779 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 | 780 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 781 | ) |
782 | { | |
783 | if (locwarn) | |
bbce6d69 | 784 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc | 785 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
786 | ok = -1; | |
bbce6d69 | 787 | } |
5f05dabc | 788 | |
bbce6d69 | 789 | #endif /* ! LC_ALL */ |
5f05dabc | 790 | |
791 | #ifdef USE_LOCALE_CTYPE | |
792 | curctype = setlocale(LC_CTYPE, Nullch); | |
793 | #endif /* USE_LOCALE_CTYPE */ | |
794 | #ifdef USE_LOCALE_COLLATE | |
795 | curcoll = setlocale(LC_COLLATE, Nullch); | |
796 | #endif /* USE_LOCALE_COLLATE */ | |
797 | #ifdef USE_LOCALE_NUMERIC | |
798 | curnum = setlocale(LC_NUMERIC, Nullch); | |
799 | #endif /* USE_LOCALE_NUMERIC */ | |
ef7eada9 JH |
800 | } |
801 | ||
36477c24 | 802 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 803 | perl_new_ctype(curctype); |
36477c24 | 804 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 | 805 | |
36477c24 | 806 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 | 807 | perl_new_collate(curcoll); |
36477c24 | 808 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 809 | |
36477c24 | 810 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 | 811 | perl_new_numeric(curnum); |
36477c24 | 812 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 | 813 | |
36477c24 | 814 | #endif /* USE_LOCALE */ |
ef7eada9 | 815 | |
f0c5b223 TB |
816 | return ok; |
817 | } | |
818 | ||
bbce6d69 | 819 | /* Backwards compatibility. */ |
820 | int | |
8ac85365 | 821 | perl_init_i18nl14n(int printwarn) |
bbce6d69 | 822 | { |
5f05dabc | 823 | return perl_init_i18nl10n(printwarn); |
bbce6d69 | 824 | } |
ef7eada9 | 825 | |
36477c24 | 826 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 | 827 | |
bbce6d69 | 828 | /* |
829 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
830 | * differences. First, it handles embedded NULs. Second, it allocates | |
831 | * a bit more memory than needed for the transformed data itself. | |
832 | * The real transformed data begins at offset sizeof(collationix). | |
833 | * Please see sv_collxfrm() to see how this is used. | |
834 | */ | |
835 | char * | |
8ac85365 | 836 | mem_collxfrm(const char *s, STRLEN len, STRLEN *xlen) |
bbce6d69 | 837 | { |
838 | char *xbuf; | |
76e3520e | 839 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ |
bbce6d69 | 840 | |
841 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ | |
842 | /* the +1 is for the terminating NUL. */ | |
843 | ||
3280af22 | 844 | xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; |
76e3520e | 845 | New(171, xbuf, xAlloc, char); |
bbce6d69 | 846 | if (! xbuf) |
847 | goto bad; | |
848 | ||
3280af22 NIS |
849 | *(U32*)xbuf = PL_collation_ix; |
850 | xout = sizeof(PL_collation_ix); | |
bbce6d69 | 851 | for (xin = 0; xin < len; ) { |
852 | SSize_t xused; | |
853 | ||
854 | for (;;) { | |
76e3520e | 855 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); |
bbce6d69 | 856 | if (xused == -1) |
857 | goto bad; | |
76e3520e | 858 | if (xused < xAlloc - xout) |
bbce6d69 | 859 | break; |
76e3520e GS |
860 | xAlloc = (2 * xAlloc) + 1; |
861 | Renew(xbuf, xAlloc, char); | |
bbce6d69 | 862 | if (! xbuf) |
863 | goto bad; | |
864 | } | |
ef7eada9 | 865 | |
bbce6d69 | 866 | xin += strlen(s + xin) + 1; |
867 | xout += xused; | |
868 | ||
869 | /* Embedded NULs are understood but silently skipped | |
870 | * because they make no sense in locale collation. */ | |
871 | } | |
ef7eada9 | 872 | |
bbce6d69 | 873 | xbuf[xout] = '\0'; |
3280af22 | 874 | *xlen = xout - sizeof(PL_collation_ix); |
bbce6d69 | 875 | return xbuf; |
876 | ||
877 | bad: | |
878 | Safefree(xbuf); | |
879 | *xlen = 0; | |
880 | return NULL; | |
ef7eada9 JH |
881 | } |
882 | ||
36477c24 | 883 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 884 | |
378cc40b | 885 | void |
2779dcf1 | 886 | fbm_compile(SV *sv, U32 flags /* not used yet */) |
378cc40b | 887 | { |
942e002e GS |
888 | register U8 *s; |
889 | register U8 *table; | |
79072805 | 890 | register U32 i; |
0b71040e | 891 | STRLEN len; |
79072805 LW |
892 | I32 rarest = 0; |
893 | U32 frequency = 256; | |
894 | ||
942e002e | 895 | s = (U8*)SvPV_force(sv, len); |
07f14f54 | 896 | (void)SvUPGRADE(sv, SVt_PVBM); |
c277df42 | 897 | if (len > 255 || len == 0) /* TAIL might be on on a zero-length string. */ |
748a9306 | 898 | return; /* can't have offsets that big */ |
02128f11 IZ |
899 | if (len > 2) { |
900 | Sv_Grow(sv,len + 258); | |
901 | table = (unsigned char*)(SvPVX(sv) + len + 1); | |
902 | s = table - 2; | |
903 | for (i = 0; i < 256; i++) { | |
904 | table[i] = len; | |
905 | } | |
906 | i = 0; | |
907 | while (s >= (unsigned char*)(SvPVX(sv))) | |
908 | { | |
909 | if (table[*s] == len) | |
910 | table[*s] = i; | |
911 | s--,i++; | |
912 | } | |
378cc40b | 913 | } |
bbce6d69 | 914 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 | 915 | SvVALID_on(sv); |
378cc40b | 916 | |
463ee0b2 | 917 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 | 918 | for (i = 0; i < len; i++) { |
22c35a8c | 919 | if (PL_freq[s[i]] < frequency) { |
bbce6d69 | 920 | rarest = i; |
22c35a8c | 921 | frequency = PL_freq[s[i]]; |
378cc40b LW |
922 | } |
923 | } | |
79072805 LW |
924 | BmRARE(sv) = s[rarest]; |
925 | BmPREVIOUS(sv) = rarest; | |
760ac839 | 926 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b LW |
927 | } |
928 | ||
378cc40b | 929 | char * |
411d5715 | 930 | fbm_instr(unsigned char *big, register unsigned char *bigend, SV *littlestr, U32 flags) |
378cc40b | 931 | { |
a687059c | 932 | register unsigned char *s; |
79072805 LW |
933 | register I32 tmp; |
934 | register I32 littlelen; | |
a687059c LW |
935 | register unsigned char *little; |
936 | register unsigned char *table; | |
937 | register unsigned char *olds; | |
938 | register unsigned char *oldlittle; | |
378cc40b | 939 | |
79072805 | 940 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e LW |
941 | STRLEN len; |
942 | char *l = SvPV(littlestr,len); | |
c277df42 | 943 | if (!len) { |
02128f11 IZ |
944 | if (SvTAIL(littlestr)) { /* Can be only 0-len constant |
945 | substr => we can ignore SvVALID */ | |
3280af22 | 946 | if (PL_multiline) { |
02128f11 | 947 | char *t = "\n"; |
3fe6f2dc MB |
948 | if ((s = (unsigned char*)ninstr((char*)big, (char*)bigend, |
949 | t, t + len))) { | |
950 | return (char*)s; | |
951 | } | |
02128f11 | 952 | } |
c277df42 | 953 | if (bigend > big && bigend[-1] == '\n') |
161b471a | 954 | return (char *)(bigend - 1); |
c277df42 | 955 | else |
161b471a | 956 | return (char *) bigend; |
c277df42 | 957 | } |
d48672a2 | 958 | return (char*)big; |
c277df42 | 959 | } |
a0d0e21e | 960 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 | 961 | } |
378cc40b | 962 | |
79072805 | 963 | littlelen = SvCUR(littlestr); |
3280af22 | 964 | if (SvTAIL(littlestr) && !PL_multiline) { /* tail anchored? */ |
0f85fab0 LW |
965 | if (littlelen > bigend - big) |
966 | return Nullch; | |
463ee0b2 | 967 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 | 968 | s = bigend - littlelen; |
02128f11 IZ |
969 | if (s > big |
970 | && bigend[-1] == '\n' | |
971 | && s[-1] == *little && memEQ((char*)s - 1,(char*)little,littlelen)) | |
972 | return (char*)s - 1; /* how sweet it is */ | |
973 | else if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) | |
bbce6d69 | 974 | return (char*)s; /* how sweet it is */ |
02128f11 IZ |
975 | return Nullch; |
976 | } | |
977 | if (littlelen <= 2) { | |
978 | unsigned char c1 = (unsigned char)SvPVX(littlestr)[0]; | |
979 | unsigned char c2 = (unsigned char)SvPVX(littlestr)[1]; | |
980 | /* This may do extra comparisons if littlelen == 2, but this | |
981 | should be hidden in the noise since we do less indirection. */ | |
982 | ||
983 | s = big; | |
984 | bigend -= littlelen; | |
985 | while (s <= bigend) { | |
986 | if (s[0] == c1 | |
987 | && (littlelen == 1 || s[1] == c2) | |
988 | && (!SvTAIL(littlestr) | |
989 | || s == bigend | |
990 | || s[littlelen] == '\n')) /* Automatically multiline */ | |
3fe6f2dc MB |
991 | { |
992 | return (char*)s; | |
993 | } | |
02128f11 | 994 | s++; |
a687059c | 995 | } |
bbce6d69 | 996 | return Nullch; |
a687059c | 997 | } |
463ee0b2 | 998 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 LW |
999 | if (--littlelen >= bigend - big) |
1000 | return Nullch; | |
1001 | s = big + littlelen; | |
a687059c | 1002 | oldlittle = little = table - 2; |
bbce6d69 | 1003 | if (s < bigend) { |
1004 | top2: | |
1005 | /*SUPPRESS 560*/ | |
1006 | if (tmp = table[*s]) { | |
62b28dd9 | 1007 | #ifdef POINTERRIGOR |
bbce6d69 | 1008 | if (bigend - s > tmp) { |
1009 | s += tmp; | |
1010 | goto top2; | |
1011 | } | |
62b28dd9 | 1012 | #else |
bbce6d69 | 1013 | if ((s += tmp) < bigend) |
1014 | goto top2; | |
62b28dd9 | 1015 | #endif |
bbce6d69 | 1016 | return Nullch; |
a687059c | 1017 | } |
bbce6d69 | 1018 | else { |
1019 | tmp = littlelen; /* less expensive than calling strncmp() */ | |
1020 | olds = s; | |
1021 | while (tmp--) { | |
1022 | if (*--s == *--little) | |
1023 | continue; | |
c277df42 | 1024 | differ: |
bbce6d69 | 1025 | s = olds + 1; /* here we pay the price for failure */ |
1026 | little = oldlittle; | |
1027 | if (s < bigend) /* fake up continue to outer loop */ | |
62b28dd9 | 1028 | goto top2; |
62b28dd9 | 1029 | return Nullch; |
a687059c | 1030 | } |
c277df42 IZ |
1031 | if (SvTAIL(littlestr) /* automatically multiline */ |
1032 | && olds + 1 != bigend | |
1033 | && olds[1] != '\n') | |
1034 | goto differ; | |
bbce6d69 | 1035 | return (char *)s; |
378cc40b LW |
1036 | } |
1037 | } | |
1038 | return Nullch; | |
1039 | } | |
1040 | ||
c277df42 IZ |
1041 | /* start_shift, end_shift are positive quantities which give offsets |
1042 | of ends of some substring of bigstr. | |
1043 | If `last' we want the last occurence. | |
1044 | old_posp is the way of communication between consequent calls if | |
1045 | the next call needs to find the . | |
1046 | The initial *old_posp should be -1. | |
1047 | Note that we do not take into account SvTAIL, so it may give wrong | |
1048 | positives if _ALL flag is set. | |
1049 | */ | |
1050 | ||
378cc40b | 1051 | char * |
c277df42 | 1052 | screaminstr(SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last) |
378cc40b | 1053 | { |
5c0ca799 | 1054 | dTHR; |
a687059c LW |
1055 | register unsigned char *s, *x; |
1056 | register unsigned char *big; | |
79072805 LW |
1057 | register I32 pos; |
1058 | register I32 previous; | |
1059 | register I32 first; | |
a687059c | 1060 | register unsigned char *little; |
c277df42 | 1061 | register I32 stop_pos; |
a687059c | 1062 | register unsigned char *littleend; |
c277df42 | 1063 | I32 found = 0; |
378cc40b | 1064 | |
c277df42 | 1065 | if (*old_posp == -1 |
3280af22 NIS |
1066 | ? (pos = PL_screamfirst[BmRARE(littlestr)]) < 0 |
1067 | : (((pos = *old_posp), pos += PL_screamnext[pos]) == 0)) | |
378cc40b | 1068 | return Nullch; |
463ee0b2 | 1069 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 | 1070 | littleend = little + SvCUR(littlestr); |
378cc40b | 1071 | first = *little++; |
c277df42 | 1072 | /* The value of pos we can start at: */ |
79072805 | 1073 | previous = BmPREVIOUS(littlestr); |
463ee0b2 | 1074 | big = (unsigned char *)(SvPVX(bigstr)); |
c277df42 IZ |
1075 | /* The value of pos we can stop at: */ |
1076 | stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous); | |
1077 | if (previous + start_shift > stop_pos) return Nullch; | |
1078 | while (pos < previous + start_shift) { | |
3280af22 | 1079 | if (!(pos += PL_screamnext[pos])) |
378cc40b LW |
1080 | return Nullch; |
1081 | } | |
de3bb511 | 1082 | #ifdef POINTERRIGOR |
bbce6d69 | 1083 | do { |
ef64f398 | 1084 | if (pos >= stop_pos) break; |
bbce6d69 | 1085 | if (big[pos-previous] != first) |
1086 | continue; | |
1087 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { | |
bbce6d69 | 1088 | if (*s++ != *x++) { |
1089 | s--; | |
1090 | break; | |
de3bb511 | 1091 | } |
bbce6d69 | 1092 | } |
c277df42 IZ |
1093 | if (s == littleend) { |
1094 | *old_posp = pos; | |
1095 | if (!last) return (char *)(big+pos-previous); | |
1096 | found = 1; | |
1097 | } | |
6b88bc9c | 1098 | } while ( pos += PL_screamnext[pos] ); |
c277df42 | 1099 | return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch; |
de3bb511 LW |
1100 | #else /* !POINTERRIGOR */ |
1101 | big -= previous; | |
bbce6d69 | 1102 | do { |
ef64f398 | 1103 | if (pos >= stop_pos) break; |
bbce6d69 | 1104 | if (big[pos] != first) |
1105 | continue; | |
1106 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { | |
bbce6d69 | 1107 | if (*s++ != *x++) { |
1108 | s--; | |
1109 | break; | |
378cc40b | 1110 | } |
bbce6d69 | 1111 | } |
c277df42 IZ |
1112 | if (s == littleend) { |
1113 | *old_posp = pos; | |
1114 | if (!last) return (char *)(big+pos); | |
1115 | found = 1; | |
1116 | } | |
3280af22 | 1117 | } while ( pos += PL_screamnext[pos] ); |
c277df42 | 1118 | return (last && found) ? (char *)(big+(*old_posp)) : Nullch; |
de3bb511 | 1119 | #endif /* POINTERRIGOR */ |
8d063cd8 LW |
1120 | } |
1121 | ||
79072805 | 1122 | I32 |
8ac85365 | 1123 | ibcmp(char *s1, char *s2, register I32 len) |
79072805 | 1124 | { |
bbce6d69 | 1125 | register U8 *a = (U8 *)s1; |
1126 | register U8 *b = (U8 *)s2; | |
79072805 | 1127 | while (len--) { |
22c35a8c | 1128 | if (*a != *b && *a != PL_fold[*b]) |
bbce6d69 | 1129 | return 1; |
1130 | a++,b++; | |
1131 | } | |
1132 | return 0; | |
1133 | } | |
1134 | ||
1135 | I32 | |
8ac85365 | 1136 | ibcmp_locale(char *s1, char *s2, register I32 len) |
bbce6d69 | 1137 | { |
1138 | register U8 *a = (U8 *)s1; | |
1139 | register U8 *b = (U8 *)s2; | |
1140 | while (len--) { | |
22c35a8c | 1141 | if (*a != *b && *a != PL_fold_locale[*b]) |
bbce6d69 | 1142 | return 1; |
1143 | a++,b++; | |
79072805 LW |
1144 | } |
1145 | return 0; | |
1146 | } | |
1147 | ||
8d063cd8 LW |
1148 | /* copy a string to a safe spot */ |
1149 | ||
1150 | char * | |
8ac85365 | 1151 | savepv(char *sv) |
8d063cd8 | 1152 | { |
a687059c | 1153 | register char *newaddr; |
8d063cd8 | 1154 | |
79072805 LW |
1155 | New(902,newaddr,strlen(sv)+1,char); |
1156 | (void)strcpy(newaddr,sv); | |
8d063cd8 LW |
1157 | return newaddr; |
1158 | } | |
1159 | ||
a687059c LW |
1160 | /* same thing but with a known length */ |
1161 | ||
1162 | char * | |
8ac85365 | 1163 | savepvn(char *sv, register I32 len) |
a687059c LW |
1164 | { |
1165 | register char *newaddr; | |
1166 | ||
1167 | New(903,newaddr,len+1,char); | |
79072805 | 1168 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c LW |
1169 | newaddr[len] = '\0'; /* is now */ |
1170 | return newaddr; | |
1171 | } | |
1172 | ||
fc36a67e | 1173 | /* the SV for form() and mess() is not kept in an arena */ |
1174 | ||
76e3520e | 1175 | STATIC SV * |
8ac85365 | 1176 | mess_alloc(void) |
fc36a67e | 1177 | { |
e72dc28c | 1178 | dTHR; |
fc36a67e | 1179 | SV *sv; |
1180 | XPVMG *any; | |
1181 | ||
e72dc28c GS |
1182 | if (!PL_dirty) |
1183 | return sv_2mortal(newSVpvn("",0)); | |
1184 | ||
0372dbb6 GS |
1185 | if (PL_mess_sv) |
1186 | return PL_mess_sv; | |
1187 | ||
fc36a67e | 1188 | /* Create as PVMG now, to avoid any upgrading later */ |
1189 | New(905, sv, 1, SV); | |
1190 | Newz(905, any, 1, XPVMG); | |
1191 | SvFLAGS(sv) = SVt_PVMG; | |
1192 | SvANY(sv) = (void*)any; | |
1193 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ | |
e72dc28c | 1194 | PL_mess_sv = sv; |
fc36a67e | 1195 | return sv; |
1196 | } | |
1197 | ||
8990e307 | 1198 | char * |
46fc3d4c | 1199 | form(const char* pat, ...) |
8990e307 | 1200 | { |
e72dc28c | 1201 | SV *sv = mess_alloc(); |
46fc3d4c | 1202 | va_list args; |
46fc3d4c | 1203 | va_start(args, pat); |
e72dc28c | 1204 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 1205 | va_end(args); |
e72dc28c | 1206 | return SvPVX(sv); |
46fc3d4c | 1207 | } |
a687059c | 1208 | |
46fc3d4c | 1209 | char * |
8ac85365 | 1210 | mess(const char *pat, va_list *args) |
46fc3d4c | 1211 | { |
e72dc28c | 1212 | SV *sv = mess_alloc(); |
46fc3d4c | 1213 | static char dgd[] = " during global destruction.\n"; |
1214 | ||
fc36a67e | 1215 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 1216 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
e858de61 | 1217 | dTHR; |
3280af22 | 1218 | if (PL_dirty) |
46fc3d4c | 1219 | sv_catpv(sv, dgd); |
2304df62 | 1220 | else { |
3280af22 | 1221 | if (PL_curcop->cop_line) |
fc36a67e | 1222 | sv_catpvf(sv, " at %_ line %ld", |
3280af22 NIS |
1223 | GvSV(PL_curcop->cop_filegv), (long)PL_curcop->cop_line); |
1224 | if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) { | |
1225 | bool line_mode = (RsSIMPLE(PL_rs) && | |
1226 | SvLEN(PL_rs) == 1 && *SvPVX(PL_rs) == '\n'); | |
46fc3d4c | 1227 | sv_catpvf(sv, ", <%s> %s %ld", |
3280af22 | 1228 | PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv), |
46fc3d4c | 1229 | line_mode ? "line" : "chunk", |
3280af22 | 1230 | (long)IoLINES(GvIOp(PL_last_in_gv))); |
2304df62 | 1231 | } |
46fc3d4c | 1232 | sv_catpv(sv, ".\n"); |
a687059c | 1233 | } |
a687059c | 1234 | } |
46fc3d4c | 1235 | return SvPVX(sv); |
a687059c LW |
1236 | } |
1237 | ||
36477c24 | 1238 | OP * |
71be2cbc | 1239 | die(const char* pat, ...) |
36477c24 | 1240 | { |
5dc0d613 | 1241 | dTHR; |
36477c24 | 1242 | va_list args; |
1243 | char *message; | |
3280af22 | 1244 | int was_in_eval = PL_in_eval; |
36477c24 | 1245 | HV *stash; |
1246 | GV *gv; | |
1247 | CV *cv; | |
1248 | ||
8b73bbec | 1249 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
199100c8 | 1250 | "%p: die: curstack = %p, mainstack = %p\n", |
533c011a | 1251 | thr, PL_curstack, PL_mainstack)); |
36477c24 | 1252 | |
36477c24 | 1253 | va_start(args, pat); |
4e6ea2c3 | 1254 | message = pat ? mess(pat, &args) : Nullch; |
36477c24 | 1255 | va_end(args); |
1256 | ||
8b73bbec | 1257 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
199100c8 | 1258 | "%p: die: message = %s\ndiehook = %p\n", |
533c011a | 1259 | thr, message, PL_diehook)); |
3280af22 | 1260 | if (PL_diehook) { |
1738f5c4 | 1261 | /* sv_2cv might call croak() */ |
3280af22 | 1262 | SV *olddiehook = PL_diehook; |
1738f5c4 | 1263 | ENTER; |
3280af22 NIS |
1264 | SAVESPTR(PL_diehook); |
1265 | PL_diehook = Nullsv; | |
1738f5c4 CS |
1266 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1267 | LEAVE; | |
1268 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1269 | dSP; | |
774d564b | 1270 | SV *msg; |
1271 | ||
1272 | ENTER; | |
4e6ea2c3 GS |
1273 | if(message) { |
1274 | msg = newSVpv(message, 0); | |
1275 | SvREADONLY_on(msg); | |
1276 | SAVEFREESV(msg); | |
1277 | } | |
1278 | else { | |
1279 | msg = ERRSV; | |
1280 | } | |
1738f5c4 | 1281 | |
e788e7d3 | 1282 | PUSHSTACKi(PERLSI_DIEHOOK); |
924508f0 | 1283 | PUSHMARK(SP); |
1738f5c4 CS |
1284 | XPUSHs(msg); |
1285 | PUTBACK; | |
1286 | perl_call_sv((SV*)cv, G_DISCARD); | |
d3acc0f7 | 1287 | POPSTACK; |
774d564b | 1288 | LEAVE; |
1738f5c4 | 1289 | } |
36477c24 | 1290 | } |
1291 | ||
3280af22 | 1292 | PL_restartop = die_where(message); |
8b73bbec | 1293 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
7c06b590 | 1294 | "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n", |
533c011a | 1295 | thr, PL_restartop, was_in_eval, PL_top_env)); |
3280af22 | 1296 | if ((!PL_restartop && was_in_eval) || PL_top_env->je_prev) |
6224f72b | 1297 | JMPENV_JUMP(3); |
3280af22 | 1298 | return PL_restartop; |
36477c24 | 1299 | } |
1300 | ||
79072805 | 1301 | void |
71be2cbc | 1302 | croak(const char* pat, ...) |
a687059c | 1303 | { |
11343788 | 1304 | dTHR; |
a687059c | 1305 | va_list args; |
de3bb511 | 1306 | char *message; |
748a9306 LW |
1307 | HV *stash; |
1308 | GV *gv; | |
1309 | CV *cv; | |
a687059c | 1310 | |
8990e307 | 1311 | va_start(args, pat); |
2304df62 | 1312 | message = mess(pat, &args); |
a687059c | 1313 | va_end(args); |
8b73bbec | 1314 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
3280af22 | 1315 | if (PL_diehook) { |
1738f5c4 | 1316 | /* sv_2cv might call croak() */ |
3280af22 | 1317 | SV *olddiehook = PL_diehook; |
1738f5c4 | 1318 | ENTER; |
3280af22 NIS |
1319 | SAVESPTR(PL_diehook); |
1320 | PL_diehook = Nullsv; | |
20cec16a | 1321 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 CS |
1322 | LEAVE; |
1323 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1324 | dSP; |
774d564b | 1325 | SV *msg; |
1326 | ||
1327 | ENTER; | |
1328 | msg = newSVpv(message, 0); | |
1329 | SvREADONLY_on(msg); | |
1330 | SAVEFREESV(msg); | |
20cec16a | 1331 | |
e788e7d3 | 1332 | PUSHSTACKi(PERLSI_DIEHOOK); |
924508f0 | 1333 | PUSHMARK(SP); |
1738f5c4 | 1334 | XPUSHs(msg); |
20cec16a | 1335 | PUTBACK; |
1336 | perl_call_sv((SV*)cv, G_DISCARD); | |
d3acc0f7 | 1337 | POPSTACK; |
774d564b | 1338 | LEAVE; |
20cec16a | 1339 | } |
748a9306 | 1340 | } |
3280af22 NIS |
1341 | if (PL_in_eval) { |
1342 | PL_restartop = die_where(message); | |
6224f72b | 1343 | JMPENV_JUMP(3); |
a0d0e21e | 1344 | } |
760ac839 LW |
1345 | PerlIO_puts(PerlIO_stderr(),message); |
1346 | (void)PerlIO_flush(PerlIO_stderr()); | |
f86702cc | 1347 | my_failure_exit(); |
a687059c LW |
1348 | } |
1349 | ||
8990e307 | 1350 | void |
71be2cbc | 1351 | warn(const char* pat,...) |
a687059c LW |
1352 | { |
1353 | va_list args; | |
de3bb511 | 1354 | char *message; |
748a9306 LW |
1355 | HV *stash; |
1356 | GV *gv; | |
1357 | CV *cv; | |
a687059c | 1358 | |
8990e307 | 1359 | va_start(args, pat); |
2304df62 | 1360 | message = mess(pat, &args); |
a687059c LW |
1361 | va_end(args); |
1362 | ||
3280af22 | 1363 | if (PL_warnhook) { |
1738f5c4 | 1364 | /* sv_2cv might call warn() */ |
11343788 | 1365 | dTHR; |
3280af22 | 1366 | SV *oldwarnhook = PL_warnhook; |
1738f5c4 | 1367 | ENTER; |
3280af22 NIS |
1368 | SAVESPTR(PL_warnhook); |
1369 | PL_warnhook = Nullsv; | |
20cec16a | 1370 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 CS |
1371 | LEAVE; |
1372 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1373 | dSP; |
774d564b | 1374 | SV *msg; |
1375 | ||
1376 | ENTER; | |
1377 | msg = newSVpv(message, 0); | |
1378 | SvREADONLY_on(msg); | |
1379 | SAVEFREESV(msg); | |
1380 | ||
e788e7d3 | 1381 | PUSHSTACKi(PERLSI_WARNHOOK); |
924508f0 | 1382 | PUSHMARK(SP); |
774d564b | 1383 | XPUSHs(msg); |
20cec16a | 1384 | PUTBACK; |
1385 | perl_call_sv((SV*)cv, G_DISCARD); | |
d3acc0f7 | 1386 | POPSTACK; |
774d564b | 1387 | LEAVE; |
20cec16a | 1388 | return; |
1389 | } | |
748a9306 | 1390 | } |
20cec16a | 1391 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c | 1392 | #ifdef LEAKTEST |
8c52afec IZ |
1393 | DEBUG_L(*message == '!' |
1394 | ? (xstat(message[1]=='!' | |
1395 | ? (message[2]=='!' ? 2 : 1) | |
1396 | : 0) | |
1397 | , 0) | |
1398 | : 0); | |
a687059c | 1399 | #endif |
20cec16a | 1400 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c | 1401 | } |
8d063cd8 | 1402 | |
599cee73 PM |
1403 | void |
1404 | warner(U32 err, const char* pat,...) | |
1405 | { | |
d008e5eb | 1406 | dTHR; |
599cee73 PM |
1407 | va_list args; |
1408 | char *message; | |
1409 | HV *stash; | |
1410 | GV *gv; | |
1411 | CV *cv; | |
1412 | ||
1413 | va_start(args, pat); | |
1414 | message = mess(pat, &args); | |
1415 | va_end(args); | |
1416 | ||
1417 | if (ckDEAD(err)) { | |
1418 | #ifdef USE_THREADS | |
d008e5eb | 1419 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
599cee73 PM |
1420 | #endif /* USE_THREADS */ |
1421 | if (PL_diehook) { | |
1422 | /* sv_2cv might call croak() */ | |
1423 | SV *olddiehook = PL_diehook; | |
1424 | ENTER; | |
1425 | SAVESPTR(PL_diehook); | |
1426 | PL_diehook = Nullsv; | |
1427 | cv = sv_2cv(olddiehook, &stash, &gv, 0); | |
1428 | LEAVE; | |
1429 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1430 | dSP; | |
1431 | SV *msg; | |
1432 | ||
1433 | ENTER; | |
1434 | msg = newSVpv(message, 0); | |
1435 | SvREADONLY_on(msg); | |
1436 | SAVEFREESV(msg); | |
1437 | ||
1438 | PUSHMARK(sp); | |
1439 | XPUSHs(msg); | |
1440 | PUTBACK; | |
1441 | perl_call_sv((SV*)cv, G_DISCARD); | |
1442 | ||
1443 | LEAVE; | |
1444 | } | |
1445 | } | |
1446 | if (PL_in_eval) { | |
1447 | PL_restartop = die_where(message); | |
1448 | JMPENV_JUMP(3); | |
1449 | } | |
1450 | PerlIO_puts(PerlIO_stderr(),message); | |
1451 | (void)PerlIO_flush(PerlIO_stderr()); | |
1452 | my_failure_exit(); | |
1453 | ||
1454 | } | |
1455 | else { | |
1456 | if (PL_warnhook) { | |
1457 | /* sv_2cv might call warn() */ | |
1458 | dTHR; | |
1459 | SV *oldwarnhook = PL_warnhook; | |
1460 | ENTER; | |
1461 | SAVESPTR(PL_warnhook); | |
1462 | PL_warnhook = Nullsv; | |
1463 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); | |
1464 | LEAVE; | |
1465 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1466 | dSP; | |
1467 | SV *msg; | |
1468 | ||
1469 | ENTER; | |
1470 | msg = newSVpv(message, 0); | |
1471 | SvREADONLY_on(msg); | |
1472 | SAVEFREESV(msg); | |
1473 | ||
1474 | PUSHMARK(sp); | |
1475 | XPUSHs(msg); | |
1476 | PUTBACK; | |
1477 | perl_call_sv((SV*)cv, G_DISCARD); | |
1478 | ||
1479 | LEAVE; | |
1480 | return; | |
1481 | } | |
1482 | } | |
1483 | PerlIO_puts(PerlIO_stderr(),message); | |
1484 | #ifdef LEAKTEST | |
1485 | DEBUG_L(xstat()); | |
1486 | #endif | |
1487 | (void)PerlIO_flush(PerlIO_stderr()); | |
1488 | } | |
1489 | } | |
1490 | ||
a0d0e21e | 1491 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
3e3baf6d | 1492 | #ifndef WIN32 |
8d063cd8 | 1493 | void |
8ac85365 | 1494 | my_setenv(char *nam, char *val) |
8d063cd8 | 1495 | { |
79072805 | 1496 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 | 1497 | |
3280af22 | 1498 | if (environ == PL_origenviron) { /* need we copy environment? */ |
79072805 LW |
1499 | I32 j; |
1500 | I32 max; | |
fe14fcc3 LW |
1501 | char **tmpenv; |
1502 | ||
de3bb511 | 1503 | /*SUPPRESS 530*/ |
fe14fcc3 LW |
1504 | for (max = i; environ[max]; max++) ; |
1505 | New(901,tmpenv, max+2, char*); | |
1506 | for (j=0; j<max; j++) /* copy environment */ | |
a0d0e21e | 1507 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 LW |
1508 | tmpenv[max] = Nullch; |
1509 | environ = tmpenv; /* tell exec where it is now */ | |
1510 | } | |
a687059c | 1511 | if (!val) { |
e5ebf479 | 1512 | Safefree(environ[i]); |
a687059c LW |
1513 | while (environ[i]) { |
1514 | environ[i] = environ[i+1]; | |
1515 | i++; | |
1516 | } | |
1517 | return; | |
1518 | } | |
8d063cd8 | 1519 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 | 1520 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 LW |
1521 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1522 | } | |
fe14fcc3 LW |
1523 | else |
1524 | Safefree(environ[i]); | |
a687059c | 1525 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 | 1526 | #ifndef MSDOS |
a687059c | 1527 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 LW |
1528 | #else |
1529 | /* MS-DOS requires environment variable names to be in uppercase */ | |
fe14fcc3 LW |
1530 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1531 | * some utilities and applications may break because they only look | |
1532 | * for upper case strings. (Fixed strupr() bug here.)] | |
1533 | */ | |
1534 | strcpy(environ[i],nam); strupr(environ[i]); | |
62b28dd9 LW |
1535 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1536 | #endif /* MSDOS */ | |
8d063cd8 LW |
1537 | } |
1538 | ||
3e3baf6d | 1539 | #else /* if WIN32 */ |
68dc0745 | 1540 | |
1541 | void | |
4e35701f | 1542 | my_setenv(char *nam,char *val) |
68dc0745 | 1543 | { |
3e3baf6d TB |
1544 | |
1545 | #ifdef USE_WIN32_RTL_ENV | |
1546 | ||
68dc0745 | 1547 | register char *envstr; |
1548 | STRLEN namlen = strlen(nam); | |
3e3baf6d TB |
1549 | STRLEN vallen; |
1550 | char *oldstr = environ[setenv_getix(nam)]; | |
1551 | ||
1552 | /* putenv() has totally broken semantics in both the Borland | |
1553 | * and Microsoft CRTLs. They either store the passed pointer in | |
1554 | * the environment without making a copy, or make a copy and don't | |
1555 | * free it. And on top of that, they dont free() old entries that | |
1556 | * are being replaced/deleted. This means the caller must | |
1557 | * free any old entries somehow, or we end up with a memory | |
1558 | * leak every time my_setenv() is called. One might think | |
1559 | * one could directly manipulate environ[], like the UNIX code | |
1560 | * above, but direct changes to environ are not allowed when | |
1561 | * calling putenv(), since the RTLs maintain an internal | |
1562 | * *copy* of environ[]. Bad, bad, *bad* stink. | |
1563 | * GSAR 97-06-07 | |
1564 | */ | |
68dc0745 | 1565 | |
3e3baf6d TB |
1566 | if (!val) { |
1567 | if (!oldstr) | |
1568 | return; | |
1569 | val = ""; | |
1570 | vallen = 0; | |
1571 | } | |
1572 | else | |
1573 | vallen = strlen(val); | |
fc36a67e | 1574 | New(904, envstr, namlen + vallen + 3, char); |
68dc0745 | 1575 | (void)sprintf(envstr,"%s=%s",nam,val); |
76e3520e | 1576 | (void)PerlEnv_putenv(envstr); |
3e3baf6d TB |
1577 | if (oldstr) |
1578 | Safefree(oldstr); | |
1579 | #ifdef _MSC_VER | |
1580 | Safefree(envstr); /* MSVCRT leaks without this */ | |
1581 | #endif | |
1582 | ||
1583 | #else /* !USE_WIN32_RTL_ENV */ | |
1584 | ||
1585 | /* The sane way to deal with the environment. | |
1586 | * Has these advantages over putenv() & co.: | |
1587 | * * enables us to store a truly empty value in the | |
1588 | * environment (like in UNIX). | |
1589 | * * we don't have to deal with RTL globals, bugs and leaks. | |
1590 | * * Much faster. | |
1591 | * Why you may want to enable USE_WIN32_RTL_ENV: | |
1592 | * * environ[] and RTL functions will not reflect changes, | |
1593 | * which might be an issue if extensions want to access | |
1594 | * the env. via RTL. This cuts both ways, since RTL will | |
1595 | * not see changes made by extensions that call the Win32 | |
1596 | * functions directly, either. | |
1597 | * GSAR 97-06-07 | |
1598 | */ | |
1599 | SetEnvironmentVariable(nam,val); | |
1600 | ||
1601 | #endif | |
1602 | } | |
1603 | ||
1604 | #endif /* WIN32 */ | |
1605 | ||
1606 | I32 | |
8ac85365 | 1607 | setenv_getix(char *nam) |
3e3baf6d TB |
1608 | { |
1609 | register I32 i, len = strlen(nam); | |
1610 | ||
1611 | for (i = 0; environ[i]; i++) { | |
1612 | if ( | |
1613 | #ifdef WIN32 | |
1614 | strnicmp(environ[i],nam,len) == 0 | |
1615 | #else | |
1616 | strnEQ(environ[i],nam,len) | |
1617 | #endif | |
1618 | && environ[i][len] == '=') | |
1619 | break; /* strnEQ must come first to avoid */ | |
1620 | } /* potential SEGV's */ | |
1621 | return i; | |
68dc0745 | 1622 | } |
1623 | ||
a0d0e21e | 1624 | #endif /* !VMS */ |
378cc40b | 1625 | |
16d20bd9 | 1626 | #ifdef UNLINK_ALL_VERSIONS |
79072805 | 1627 | I32 |
378cc40b LW |
1628 | unlnk(f) /* unlink all versions of a file */ |
1629 | char *f; | |
1630 | { | |
79072805 | 1631 | I32 i; |
378cc40b | 1632 | |
6ad3d225 | 1633 | for (i = 0; PerlLIO_unlink(f) >= 0; i++) ; |
378cc40b LW |
1634 | return i ? 0 : -1; |
1635 | } | |
1636 | #endif | |
1637 | ||
85e6fe83 | 1638 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b | 1639 | char * |
4e35701f | 1640 | my_bcopy(register char *from,register char *to,register I32 len) |
378cc40b LW |
1641 | { |
1642 | char *retval = to; | |
1643 | ||
7c0587c8 LW |
1644 | if (from - to >= 0) { |
1645 | while (len--) | |
1646 | *to++ = *from++; | |
1647 | } | |
1648 | else { | |
1649 | to += len; | |
1650 | from += len; | |
1651 | while (len--) | |
faf8582f | 1652 | *(--to) = *(--from); |
7c0587c8 | 1653 | } |
378cc40b LW |
1654 | return retval; |
1655 | } | |
ffed7fef | 1656 | #endif |
378cc40b | 1657 | |
fc36a67e | 1658 | #ifndef HAS_MEMSET |
1659 | void * | |
1660 | my_memset(loc,ch,len) | |
1661 | register char *loc; | |
1662 | register I32 ch; | |
1663 | register I32 len; | |
1664 | { | |
1665 | char *retval = loc; | |
1666 | ||
1667 | while (len--) | |
1668 | *loc++ = ch; | |
1669 | return retval; | |
1670 | } | |
1671 | #endif | |
1672 | ||
7c0587c8 | 1673 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b | 1674 | char * |
7c0587c8 | 1675 | my_bzero(loc,len) |
378cc40b | 1676 | register char *loc; |
79072805 | 1677 | register I32 len; |
378cc40b LW |
1678 | { |
1679 | char *retval = loc; | |
1680 | ||
1681 | while (len--) | |
1682 | *loc++ = 0; | |
1683 | return retval; | |
1684 | } | |
1685 | #endif | |
7c0587c8 | 1686 | |
36477c24 | 1687 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 | 1688 | I32 |
7c0587c8 | 1689 | my_memcmp(s1,s2,len) |
36477c24 | 1690 | char *s1; |
1691 | char *s2; | |
79072805 | 1692 | register I32 len; |
7c0587c8 | 1693 | { |
36477c24 | 1694 | register U8 *a = (U8 *)s1; |
1695 | register U8 *b = (U8 *)s2; | |
79072805 | 1696 | register I32 tmp; |
7c0587c8 LW |
1697 | |
1698 | while (len--) { | |
36477c24 | 1699 | if (tmp = *a++ - *b++) |
7c0587c8 LW |
1700 | return tmp; |
1701 | } | |
1702 | return 0; | |
1703 | } | |
36477c24 | 1704 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c | 1705 | |
fe14fcc3 | 1706 | #ifndef HAS_VPRINTF |
a687059c | 1707 | |
85e6fe83 | 1708 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1709 | char * |
1710 | #else | |
1711 | int | |
1712 | #endif | |
1713 | vsprintf(dest, pat, args) | |
71be2cbc | 1714 | char *dest; |
1715 | const char *pat; | |
1716 | char *args; | |
a687059c LW |
1717 | { |
1718 | FILE fakebuf; | |
1719 | ||
1720 | fakebuf._ptr = dest; | |
1721 | fakebuf._cnt = 32767; | |
35c8bce7 LW |
1722 | #ifndef _IOSTRG |
1723 | #define _IOSTRG 0 | |
1724 | #endif | |
a687059c LW |
1725 | fakebuf._flag = _IOWRT|_IOSTRG; |
1726 | _doprnt(pat, args, &fakebuf); /* what a kludge */ | |
1727 | (void)putc('\0', &fakebuf); | |
85e6fe83 | 1728 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1729 | return(dest); |
1730 | #else | |
1731 | return 0; /* perl doesn't use return value */ | |
1732 | #endif | |
1733 | } | |
1734 | ||
fe14fcc3 | 1735 | #endif /* HAS_VPRINTF */ |
a687059c LW |
1736 | |
1737 | #ifdef MYSWAP | |
ffed7fef | 1738 | #if BYTEORDER != 0x4321 |
a687059c | 1739 | short |
748a9306 | 1740 | my_swap(short s) |
a687059c LW |
1741 | { |
1742 | #if (BYTEORDER & 1) == 0 | |
1743 | short result; | |
1744 | ||
1745 | result = ((s & 255) << 8) + ((s >> 8) & 255); | |
1746 | return result; | |
1747 | #else | |
1748 | return s; | |
1749 | #endif | |
1750 | } | |
1751 | ||
1752 | long | |
748a9306 | 1753 | my_htonl(long l) |
a687059c LW |
1754 | { |
1755 | union { | |
1756 | long result; | |
ffed7fef | 1757 | char c[sizeof(long)]; |
a687059c LW |
1758 | } u; |
1759 | ||
ffed7fef | 1760 | #if BYTEORDER == 0x1234 |
a687059c LW |
1761 | u.c[0] = (l >> 24) & 255; |
1762 | u.c[1] = (l >> 16) & 255; | |
1763 | u.c[2] = (l >> 8) & 255; | |
1764 | u.c[3] = l & 255; | |
1765 | return u.result; | |
1766 | #else | |
ffed7fef | 1767 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1768 | croak("Unknown BYTEORDER\n"); |
a687059c | 1769 | #else |
79072805 LW |
1770 | register I32 o; |
1771 | register I32 s; | |
a687059c | 1772 | |
ffed7fef LW |
1773 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1774 | u.c[o & 0xf] = (l >> s) & 255; | |
a687059c LW |
1775 | } |
1776 | return u.result; | |
1777 | #endif | |
1778 | #endif | |
1779 | } | |
1780 | ||
1781 | long | |
748a9306 | 1782 | my_ntohl(long l) |
a687059c LW |
1783 | { |
1784 | union { | |
1785 | long l; | |
ffed7fef | 1786 | char c[sizeof(long)]; |
a687059c LW |
1787 | } u; |
1788 | ||
ffed7fef | 1789 | #if BYTEORDER == 0x1234 |
a687059c LW |
1790 | u.c[0] = (l >> 24) & 255; |
1791 | u.c[1] = (l >> 16) & 255; | |
1792 | u.c[2] = (l >> 8) & 255; | |
1793 | u.c[3] = l & 255; | |
1794 | return u.l; | |
1795 | #else | |
ffed7fef | 1796 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1797 | croak("Unknown BYTEORDER\n"); |
a687059c | 1798 | #else |
79072805 LW |
1799 | register I32 o; |
1800 | register I32 s; | |
a687059c LW |
1801 | |
1802 | u.l = l; | |
1803 | l = 0; | |
ffed7fef LW |
1804 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1805 | l |= (u.c[o & 0xf] & 255) << s; | |
a687059c LW |
1806 | } |
1807 | return l; | |
1808 | #endif | |
1809 | #endif | |
1810 | } | |
1811 | ||
ffed7fef | 1812 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 LW |
1813 | #endif /* MYSWAP */ |
1814 | ||
1815 | /* | |
1816 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. | |
1817 | * If these functions are defined, | |
1818 | * the BYTEORDER is neither 0x1234 nor 0x4321. | |
1819 | * However, this is not assumed. | |
1820 | * -DWS | |
1821 | */ | |
1822 | ||
1823 | #define HTOV(name,type) \ | |
1824 | type \ | |
1825 | name (n) \ | |
1826 | register type n; \ | |
1827 | { \ | |
1828 | union { \ | |
1829 | type value; \ | |
1830 | char c[sizeof(type)]; \ | |
1831 | } u; \ | |
79072805 LW |
1832 | register I32 i; \ |
1833 | register I32 s; \ | |
988174c1 LW |
1834 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1835 | u.c[i] = (n >> s) & 0xFF; \ | |
1836 | } \ | |
1837 | return u.value; \ | |
1838 | } | |
1839 | ||
1840 | #define VTOH(name,type) \ | |
1841 | type \ | |
1842 | name (n) \ | |
1843 | register type n; \ | |
1844 | { \ | |
1845 | union { \ | |
1846 | type value; \ | |
1847 | char c[sizeof(type)]; \ | |
1848 | } u; \ | |
79072805 LW |
1849 | register I32 i; \ |
1850 | register I32 s; \ | |
988174c1 LW |
1851 | u.value = n; \ |
1852 | n = 0; \ | |
1853 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ | |
1854 | n += (u.c[i] & 0xFF) << s; \ | |
1855 | } \ | |
1856 | return n; \ | |
1857 | } | |
1858 | ||
1859 | #if defined(HAS_HTOVS) && !defined(htovs) | |
1860 | HTOV(htovs,short) | |
1861 | #endif | |
1862 | #if defined(HAS_HTOVL) && !defined(htovl) | |
1863 | HTOV(htovl,long) | |
1864 | #endif | |
1865 | #if defined(HAS_VTOHS) && !defined(vtohs) | |
1866 | VTOH(vtohs,short) | |
1867 | #endif | |
1868 | #if defined(HAS_VTOHL) && !defined(vtohl) | |
1869 | VTOH(vtohl,long) | |
1870 | #endif | |
a687059c | 1871 | |
5f05dabc | 1872 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
092bebab | 1873 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) |
760ac839 | 1874 | PerlIO * |
8ac85365 | 1875 | my_popen(char *cmd, char *mode) |
a687059c LW |
1876 | { |
1877 | int p[2]; | |
8ac85365 | 1878 | register I32 This, that; |
79072805 LW |
1879 | register I32 pid; |
1880 | SV *sv; | |
1738f5c4 | 1881 | I32 doexec = strNE(cmd,"-"); |
a687059c | 1882 | |
ddcf38b7 IZ |
1883 | #ifdef OS2 |
1884 | if (doexec) { | |
1885 | return my_syspopen(cmd,mode); | |
1886 | } | |
1887 | #endif | |
8ac85365 NIS |
1888 | This = (*mode == 'w'); |
1889 | that = !This; | |
3280af22 | 1890 | if (doexec && PL_tainting) { |
bbce6d69 | 1891 | taint_env(); |
1892 | taint_proper("Insecure %s%s", "EXEC"); | |
d48672a2 | 1893 | } |
c2267164 IZ |
1894 | if (PerlProc_pipe(p) < 0) |
1895 | return Nullfp; | |
a687059c LW |
1896 | while ((pid = (doexec?vfork():fork())) < 0) { |
1897 | if (errno != EAGAIN) { | |
6ad3d225 | 1898 | PerlLIO_close(p[This]); |
a687059c | 1899 | if (!doexec) |
463ee0b2 | 1900 | croak("Can't fork"); |
a687059c LW |
1901 | return Nullfp; |
1902 | } | |
1903 | sleep(5); | |
1904 | } | |
1905 | if (pid == 0) { | |
79072805 LW |
1906 | GV* tmpgv; |
1907 | ||
30ac6d9b GS |
1908 | #undef THIS |
1909 | #undef THAT | |
a687059c | 1910 | #define THIS that |
8ac85365 | 1911 | #define THAT This |
6ad3d225 | 1912 | PerlLIO_close(p[THAT]); |
a687059c | 1913 | if (p[THIS] != (*mode == 'r')) { |
6ad3d225 GS |
1914 | PerlLIO_dup2(p[THIS], *mode == 'r'); |
1915 | PerlLIO_close(p[THIS]); | |
a687059c LW |
1916 | } |
1917 | if (doexec) { | |
a0d0e21e | 1918 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 LW |
1919 | int fd; |
1920 | ||
1921 | #ifndef NOFILE | |
1922 | #define NOFILE 20 | |
1923 | #endif | |
6b88bc9c | 1924 | for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++) |
6ad3d225 | 1925 | PerlLIO_close(fd); |
ae986130 | 1926 | #endif |
a687059c | 1927 | do_exec(cmd); /* may or may not use the shell */ |
6ad3d225 | 1928 | PerlProc__exit(1); |
a687059c | 1929 | } |
de3bb511 | 1930 | /*SUPPRESS 560*/ |
85e6fe83 | 1931 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 1932 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
3280af22 NIS |
1933 | PL_forkprocess = 0; |
1934 | hv_clear(PL_pidstatus); /* we have no children */ | |
a687059c LW |
1935 | return Nullfp; |
1936 | #undef THIS | |
1937 | #undef THAT | |
1938 | } | |
62b28dd9 | 1939 | do_execfree(); /* free any memory malloced by child on vfork */ |
6ad3d225 | 1940 | PerlLIO_close(p[that]); |
8ac85365 | 1941 | if (p[that] < p[This]) { |
6ad3d225 GS |
1942 | PerlLIO_dup2(p[This], p[that]); |
1943 | PerlLIO_close(p[This]); | |
8ac85365 | 1944 | p[This] = p[that]; |
62b28dd9 | 1945 | } |
3280af22 | 1946 | sv = *av_fetch(PL_fdpid,p[This],TRUE); |
a0d0e21e | 1947 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 1948 | SvIVX(sv) = pid; |
3280af22 | 1949 | PL_forkprocess = pid; |
8ac85365 | 1950 | return PerlIO_fdopen(p[This], mode); |
a687059c | 1951 | } |
7c0587c8 | 1952 | #else |
55497cff | 1953 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 | 1954 | FILE *popen(); |
760ac839 | 1955 | PerlIO * |
79072805 | 1956 | my_popen(cmd,mode) |
7c0587c8 LW |
1957 | char *cmd; |
1958 | char *mode; | |
1959 | { | |
760ac839 | 1960 | /* Needs work for PerlIO ! */ |
55497cff | 1961 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1962 | return popen(PerlIO_exportFILE(cmd, 0), mode); | |
7c0587c8 LW |
1963 | } |
1964 | #endif | |
1965 | ||
1966 | #endif /* !DOSISH */ | |
a687059c | 1967 | |
748a9306 | 1968 | #ifdef DUMP_FDS |
35ff7856 GS |
1969 | void |
1970 | dump_fds(char *s) | |
ae986130 LW |
1971 | { |
1972 | int fd; | |
1973 | struct stat tmpstatbuf; | |
1974 | ||
760ac839 | 1975 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 | 1976 | for (fd = 0; fd < 32; fd++) { |
6ad3d225 | 1977 | if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0) |
760ac839 | 1978 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 | 1979 | } |
760ac839 | 1980 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 | 1981 | } |
35ff7856 | 1982 | #endif /* DUMP_FDS */ |
ae986130 | 1983 | |
fe14fcc3 | 1984 | #ifndef HAS_DUP2 |
fec02dd3 | 1985 | int |
a687059c LW |
1986 | dup2(oldfd,newfd) |
1987 | int oldfd; | |
1988 | int newfd; | |
1989 | { | |
a0d0e21e | 1990 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 AD |
1991 | if (oldfd == newfd) |
1992 | return oldfd; | |
6ad3d225 | 1993 | PerlLIO_close(newfd); |
fec02dd3 | 1994 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 | 1995 | #else |
fc36a67e | 1996 | #define DUP2_MAX_FDS 256 |
1997 | int fdtmp[DUP2_MAX_FDS]; | |
79072805 | 1998 | I32 fdx = 0; |
ae986130 LW |
1999 | int fd; |
2000 | ||
fe14fcc3 | 2001 | if (oldfd == newfd) |
fec02dd3 | 2002 | return oldfd; |
6ad3d225 | 2003 | PerlLIO_close(newfd); |
fc36a67e | 2004 | /* good enough for low fd's... */ |
6ad3d225 | 2005 | while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) { |
fc36a67e | 2006 | if (fdx >= DUP2_MAX_FDS) { |
6ad3d225 | 2007 | PerlLIO_close(fd); |
fc36a67e | 2008 | fd = -1; |
2009 | break; | |
2010 | } | |
ae986130 | 2011 | fdtmp[fdx++] = fd; |
fc36a67e | 2012 | } |
ae986130 | 2013 | while (fdx > 0) |
6ad3d225 | 2014 | PerlLIO_close(fdtmp[--fdx]); |
fec02dd3 | 2015 | return fd; |
62b28dd9 | 2016 | #endif |
a687059c LW |
2017 | } |
2018 | #endif | |
2019 | ||
ff68c719 | 2020 | |
2021 | #ifdef HAS_SIGACTION | |
2022 | ||
2023 | Sighandler_t | |
8ac85365 | 2024 | rsignal(int signo, Sighandler_t handler) |
ff68c719 | 2025 | { |
2026 | struct sigaction act, oact; | |
2027 | ||
2028 | act.sa_handler = handler; | |
2029 | sigemptyset(&act.sa_mask); | |
2030 | act.sa_flags = 0; | |
2031 | #ifdef SA_RESTART | |
2032 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
2033 | #endif | |
85264bed CS |
2034 | #ifdef SA_NOCLDWAIT |
2035 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) | |
2036 | act.sa_flags |= SA_NOCLDWAIT; | |
2037 | #endif | |
ff68c719 | 2038 | if (sigaction(signo, &act, &oact) == -1) |
36477c24 | 2039 | return SIG_ERR; |
ff68c719 | 2040 | else |
36477c24 | 2041 | return oact.sa_handler; |
ff68c719 | 2042 | } |
2043 | ||
2044 | Sighandler_t | |
8ac85365 | 2045 | rsignal_state(int signo) |
ff68c719 | 2046 | { |
2047 | struct sigaction oact; | |
2048 | ||
2049 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) | |
2050 | return SIG_ERR; | |
2051 | else | |
2052 | return oact.sa_handler; | |
2053 | } | |
2054 | ||
2055 | int | |
8ac85365 | 2056 | rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 | 2057 | { |
2058 | struct sigaction act; | |
2059 | ||
2060 | act.sa_handler = handler; | |
2061 | sigemptyset(&act.sa_mask); | |
2062 | act.sa_flags = 0; | |
2063 | #ifdef SA_RESTART | |
2064 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
2065 | #endif | |
85264bed CS |
2066 | #ifdef SA_NOCLDWAIT |
2067 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) | |
2068 | act.sa_flags |= SA_NOCLDWAIT; | |
2069 | #endif | |
ff68c719 | 2070 | return sigaction(signo, &act, save); |
2071 | } | |
2072 | ||
2073 | int | |
8ac85365 | 2074 | rsignal_restore(int signo, Sigsave_t *save) |
ff68c719 | 2075 | { |
2076 | return sigaction(signo, save, (struct sigaction *)NULL); | |
2077 | } | |
2078 | ||
2079 | #else /* !HAS_SIGACTION */ | |
2080 | ||
2081 | Sighandler_t | |
4e35701f | 2082 | rsignal(int signo, Sighandler_t handler) |
ff68c719 | 2083 | { |
6ad3d225 | 2084 | return PerlProc_signal(signo, handler); |
ff68c719 | 2085 | } |
2086 | ||
2087 | static int sig_trapped; | |
2088 | ||
2089 | static | |
2090 | Signal_t | |
4e35701f | 2091 | sig_trap(int signo) |
ff68c719 | 2092 | { |
2093 | sig_trapped++; | |
2094 | } | |
2095 | ||
2096 | Sighandler_t | |
4e35701f | 2097 | rsignal_state(int signo) |
ff68c719 | 2098 | { |
2099 | Sighandler_t oldsig; | |
2100 | ||
2101 | sig_trapped = 0; | |
6ad3d225 GS |
2102 | oldsig = PerlProc_signal(signo, sig_trap); |
2103 | PerlProc_signal(signo, oldsig); | |
ff68c719 | 2104 | if (sig_trapped) |
6ad3d225 | 2105 | PerlProc_kill(getpid(), signo); |
ff68c719 | 2106 | return oldsig; |
2107 | } | |
2108 | ||
2109 | int | |
4e35701f | 2110 | rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 | 2111 | { |
6ad3d225 | 2112 | *save = PerlProc_signal(signo, handler); |
ff68c719 | 2113 | return (*save == SIG_ERR) ? -1 : 0; |
2114 | } | |
2115 | ||
2116 | int | |
4e35701f | 2117 | rsignal_restore(int signo, Sigsave_t *save) |
ff68c719 | 2118 | { |
6ad3d225 | 2119 | return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0; |
ff68c719 | 2120 | } |
2121 | ||
2122 | #endif /* !HAS_SIGACTION */ | |
2123 | ||
5f05dabc | 2124 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
092bebab | 2125 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) |
79072805 | 2126 | I32 |
6acef3b7 | 2127 | my_pclose(PerlIO *ptr) |
a687059c | 2128 | { |
ff68c719 | 2129 | Sigsave_t hstat, istat, qstat; |
a687059c | 2130 | int status; |
a0d0e21e | 2131 | SV **svp; |
20188a90 | 2132 | int pid; |
1d3434b8 | 2133 | int pid2; |
03136e13 CS |
2134 | bool close_failed; |
2135 | int saved_errno; | |
2136 | #ifdef VMS | |
2137 | int saved_vaxc_errno; | |
2138 | #endif | |
22fae026 TM |
2139 | #ifdef WIN32 |
2140 | int saved_win32_errno; | |
2141 | #endif | |
a687059c | 2142 | |
3280af22 | 2143 | svp = av_fetch(PL_fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 | 2144 | pid = (int)SvIVX(*svp); |
a0d0e21e | 2145 | SvREFCNT_dec(*svp); |
3280af22 | 2146 | *svp = &PL_sv_undef; |
ddcf38b7 IZ |
2147 | #ifdef OS2 |
2148 | if (pid == -1) { /* Opened by popen. */ | |
2149 | return my_syspclose(ptr); | |
2150 | } | |
2151 | #endif | |
03136e13 CS |
2152 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2153 | saved_errno = errno; | |
2154 | #ifdef VMS | |
2155 | saved_vaxc_errno = vaxc$errno; | |
2156 | #endif | |
22fae026 TM |
2157 | #ifdef WIN32 |
2158 | saved_win32_errno = GetLastError(); | |
2159 | #endif | |
03136e13 | 2160 | } |
7c0587c8 | 2161 | #ifdef UTS |
6ad3d225 | 2162 | if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
7c0587c8 | 2163 | #endif |
ff68c719 | 2164 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2165 | rsignal_save(SIGINT, SIG_IGN, &istat); | |
2166 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); | |
748a9306 | 2167 | do { |
1d3434b8 GS |
2168 | pid2 = wait4pid(pid, &status, 0); |
2169 | } while (pid2 == -1 && errno == EINTR); | |
ff68c719 | 2170 | rsignal_restore(SIGHUP, &hstat); |
2171 | rsignal_restore(SIGINT, &istat); | |
2172 | rsignal_restore(SIGQUIT, &qstat); | |
03136e13 CS |
2173 | if (close_failed) { |
2174 | SETERRNO(saved_errno, saved_vaxc_errno); | |
2175 | return -1; | |
2176 | } | |
1d3434b8 | 2177 | return(pid2 < 0 ? pid2 : status == 0 ? 0 : (errno = 0, status)); |
20188a90 | 2178 | } |
4633a7c4 LW |
2179 | #endif /* !DOSISH */ |
2180 | ||
2d7a9237 | 2181 | #if !defined(DOSISH) || defined(OS2) || defined(WIN32) |
79072805 | 2182 | I32 |
8ac85365 | 2183 | wait4pid(int pid, int *statusp, int flags) |
20188a90 | 2184 | { |
79072805 LW |
2185 | SV *sv; |
2186 | SV** svp; | |
fc36a67e | 2187 | char spid[TYPE_CHARS(int)]; |
20188a90 LW |
2188 | |
2189 | if (!pid) | |
2190 | return -1; | |
20188a90 LW |
2191 | if (pid > 0) { |
2192 | sprintf(spid, "%d", pid); | |
3280af22 NIS |
2193 | svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE); |
2194 | if (svp && *svp != &PL_sv_undef) { | |
463ee0b2 | 2195 | *statusp = SvIVX(*svp); |
3280af22 | 2196 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2197 | return pid; |
2198 | } | |
2199 | } | |
2200 | else { | |
79072805 | 2201 | HE *entry; |
20188a90 | 2202 | |
3280af22 NIS |
2203 | hv_iterinit(PL_pidstatus); |
2204 | if (entry = hv_iternext(PL_pidstatus)) { | |
a0d0e21e | 2205 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
3280af22 | 2206 | sv = hv_iterval(PL_pidstatus,entry); |
463ee0b2 | 2207 | *statusp = SvIVX(sv); |
20188a90 | 2208 | sprintf(spid, "%d", pid); |
3280af22 | 2209 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2210 | return pid; |
2211 | } | |
2212 | } | |
79072805 | 2213 | #ifdef HAS_WAITPID |
367f3c24 IZ |
2214 | # ifdef HAS_WAITPID_RUNTIME |
2215 | if (!HAS_WAITPID_RUNTIME) | |
2216 | goto hard_way; | |
2217 | # endif | |
f55ee38a | 2218 | return PerlProc_waitpid(pid,statusp,flags); |
367f3c24 IZ |
2219 | #endif |
2220 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) | |
a0d0e21e | 2221 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
367f3c24 IZ |
2222 | #endif |
2223 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) | |
2224 | hard_way: | |
a0d0e21e LW |
2225 | { |
2226 | I32 result; | |
2227 | if (flags) | |
2228 | croak("Can't do waitpid with flags"); | |
2229 | else { | |
76e3520e | 2230 | while ((result = PerlProc_wait(statusp)) != pid && pid > 0 && result >= 0) |
a0d0e21e LW |
2231 | pidgone(result,*statusp); |
2232 | if (result < 0) | |
2233 | *statusp = -1; | |
2234 | } | |
2235 | return result; | |
a687059c LW |
2236 | } |
2237 | #endif | |
a687059c | 2238 | } |
2d7a9237 | 2239 | #endif /* !DOSISH || OS2 || WIN32 */ |
a687059c | 2240 | |
7c0587c8 | 2241 | void |
de3bb511 | 2242 | /*SUPPRESS 590*/ |
8ac85365 | 2243 | pidgone(int pid, int status) |
a687059c | 2244 | { |
79072805 | 2245 | register SV *sv; |
fc36a67e | 2246 | char spid[TYPE_CHARS(int)]; |
a687059c | 2247 | |
20188a90 | 2248 | sprintf(spid, "%d", pid); |
3280af22 | 2249 | sv = *hv_fetch(PL_pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e | 2250 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 2251 | SvIVX(sv) = status; |
20188a90 | 2252 | return; |
a687059c LW |
2253 | } |
2254 | ||
55497cff | 2255 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 | 2256 | int pclose(); |
ddcf38b7 IZ |
2257 | #ifdef HAS_FORK |
2258 | int /* Cannot prototype with I32 | |
2259 | in os2ish.h. */ | |
2260 | my_syspclose(ptr) | |
2261 | #else | |
79072805 LW |
2262 | I32 |
2263 | my_pclose(ptr) | |
ddcf38b7 | 2264 | #endif |
760ac839 | 2265 | PerlIO *ptr; |
a687059c | 2266 | { |
760ac839 LW |
2267 | /* Needs work for PerlIO ! */ |
2268 | FILE *f = PerlIO_findFILE(ptr); | |
2269 | I32 result = pclose(f); | |
2270 | PerlIO_releaseFILE(ptr,f); | |
2271 | return result; | |
a687059c | 2272 | } |
7c0587c8 | 2273 | #endif |
9f68db38 LW |
2274 | |
2275 | void | |
8ac85365 | 2276 | repeatcpy(register char *to, register char *from, I32 len, register I32 count) |
9f68db38 | 2277 | { |
79072805 | 2278 | register I32 todo; |
9f68db38 LW |
2279 | register char *frombase = from; |
2280 | ||
2281 | if (len == 1) { | |
5926133d | 2282 | register char c = *from; |
9f68db38 | 2283 | while (count-- > 0) |
5926133d | 2284 | *to++ = c; |
9f68db38 LW |
2285 | return; |
2286 | } | |
2287 | while (count-- > 0) { | |
2288 | for (todo = len; todo > 0; todo--) { | |
2289 | *to++ = *from++; | |
2290 | } | |
2291 | from = frombase; | |
2292 | } | |
2293 | } | |
0f85fab0 | 2294 | |
463ee0b2 | 2295 | U32 |
22c35a8c | 2296 | cast_ulong(double f) |
0f85fab0 LW |
2297 | { |
2298 | long along; | |
2299 | ||
27e2fb84 | 2300 | #if CASTFLAGS & 2 |
34de22dd LW |
2301 | # define BIGDOUBLE 2147483648.0 |
2302 | if (f >= BIGDOUBLE) | |
2303 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; | |
2304 | #endif | |
0f85fab0 LW |
2305 | if (f >= 0.0) |
2306 | return (unsigned long)f; | |
2307 | along = (long)f; | |
2308 | return (unsigned long)along; | |
2309 | } | |
ed6116ce | 2310 | # undef BIGDOUBLE |
5d94fbed | 2311 | |
5d94fbed AD |
2312 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2313 | work with the system-supplied definition of ULONG_MAX. The | |
2314 | comparison (f >= ULONG_MAX) always comes out true. It must be a | |
2315 | problem with the compiler constant folding. | |
2316 | ||
2317 | In any case, this workaround should be fine on any two's complement | |
2318 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your | |
2319 | ccflags. | |
2320 | --Andy Dougherty <doughera@lafcol.lafayette.edu> | |
2321 | */ | |
1eb770ff | 2322 | |
2323 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead | |
2324 | of LONG_(MIN/MAX). | |
2325 | -- Kenneth Albanowski <kjahds@kjahds.com> | |
2326 | */ | |
2327 | ||
20cec16a | 2328 | #ifndef MY_UV_MAX |
2329 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) | |
5d94fbed AD |
2330 | #endif |
2331 | ||
ed6116ce | 2332 | I32 |
22c35a8c | 2333 | cast_i32(double f) |
ed6116ce | 2334 | { |
20cec16a | 2335 | if (f >= I32_MAX) |
2336 | return (I32) I32_MAX; | |
2337 | if (f <= I32_MIN) | |
2338 | return (I32) I32_MIN; | |
ed6116ce LW |
2339 | return (I32) f; |
2340 | } | |
a0d0e21e LW |
2341 | |
2342 | IV | |
22c35a8c | 2343 | cast_iv(double f) |
a0d0e21e | 2344 | { |
20cec16a | 2345 | if (f >= IV_MAX) |
2346 | return (IV) IV_MAX; | |
2347 | if (f <= IV_MIN) | |
2348 | return (IV) IV_MIN; | |
a0d0e21e LW |
2349 | return (IV) f; |
2350 | } | |
5d94fbed AD |
2351 | |
2352 | UV | |
22c35a8c | 2353 | cast_uv(double f) |
5d94fbed | 2354 | { |
20cec16a | 2355 | if (f >= MY_UV_MAX) |
2356 | return (UV) MY_UV_MAX; | |
5d94fbed AD |
2357 | return (UV) f; |
2358 | } | |
2359 | ||
fe14fcc3 | 2360 | #ifndef HAS_RENAME |
79072805 | 2361 | I32 |
22c35a8c | 2362 | same_dirent(char *a, char *b) |
62b28dd9 | 2363 | { |
93a17b20 LW |
2364 | char *fa = strrchr(a,'/'); |
2365 | char *fb = strrchr(b,'/'); | |
62b28dd9 LW |
2366 | struct stat tmpstatbuf1; |
2367 | struct stat tmpstatbuf2; | |
46fc3d4c | 2368 | SV *tmpsv = sv_newmortal(); |
62b28dd9 LW |
2369 | |
2370 | if (fa) | |
2371 | fa++; | |
2372 | else | |
2373 | fa = a; | |
2374 | if (fb) | |
2375 | fb++; | |
2376 | else | |
2377 | fb = b; | |
2378 | if (strNE(a,b)) | |
2379 | return FALSE; | |
2380 | if (fa == a) | |
46fc3d4c | 2381 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2382 | else |
46fc3d4c | 2383 | sv_setpvn(tmpsv, a, fa - a); |
c6ed36e1 | 2384 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
62b28dd9 LW |
2385 | return FALSE; |
2386 | if (fb == b) | |
46fc3d4c | 2387 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2388 | else |
46fc3d4c | 2389 | sv_setpvn(tmpsv, b, fb - b); |
c6ed36e1 | 2390 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
62b28dd9 LW |
2391 | return FALSE; |
2392 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && | |
2393 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; | |
2394 | } | |
fe14fcc3 LW |
2395 | #endif /* !HAS_RENAME */ |
2396 | ||
55497cff | 2397 | UV |
4f19785b WSI |
2398 | scan_bin(char *start, I32 len, I32 *retlen) |
2399 | { | |
2400 | register char *s = start; | |
2401 | register UV retval = 0; | |
2402 | bool overflowed = FALSE; | |
2403 | while (len && *s >= '0' && *s <= '1') { | |
2404 | register UV n = retval << 1; | |
2405 | if (!overflowed && (n >> 1) != retval) { | |
2406 | warn("Integer overflow in binary number"); | |
2407 | overflowed = TRUE; | |
2408 | } | |
2409 | retval = n | (*s++ - '0'); | |
2410 | len--; | |
2411 | } | |
2412 | if (len && (*s >= '2' || *s <= '9')) { | |
2413 | dTHR; | |
2414 | if (ckWARN(WARN_UNSAFE)) | |
2415 | warner(WARN_UNSAFE, "Illegal binary digit ignored"); | |
2416 | } | |
2417 | *retlen = s - start; | |
2418 | return retval; | |
2419 | } | |
2420 | UV | |
8ac85365 | 2421 | scan_oct(char *start, I32 len, I32 *retlen) |
fe14fcc3 LW |
2422 | { |
2423 | register char *s = start; | |
55497cff | 2424 | register UV retval = 0; |
2425 | bool overflowed = FALSE; | |
fe14fcc3 | 2426 | |
748a9306 | 2427 | while (len && *s >= '0' && *s <= '7') { |
55497cff | 2428 | register UV n = retval << 3; |
2429 | if (!overflowed && (n >> 3) != retval) { | |
2430 | warn("Integer overflow in octal number"); | |
2431 | overflowed = TRUE; | |
2432 | } | |
2433 | retval = n | (*s++ - '0'); | |
748a9306 | 2434 | len--; |
fe14fcc3 | 2435 | } |
d008e5eb GS |
2436 | if (len && (*s == '8' || *s == '9')) { |
2437 | dTHR; | |
2438 | if (ckWARN(WARN_OCTAL)) | |
2439 | warner(WARN_OCTAL, "Illegal octal digit ignored"); | |
2440 | } | |
fe14fcc3 LW |
2441 | *retlen = s - start; |
2442 | return retval; | |
2443 | } | |
2444 | ||
71be2cbc | 2445 | UV |
8ac85365 | 2446 | scan_hex(char *start, I32 len, I32 *retlen) |
fe14fcc3 LW |
2447 | { |
2448 | register char *s = start; | |
55497cff | 2449 | register UV retval = 0; |
2450 | bool overflowed = FALSE; | |
6ff81951 | 2451 | char *tmp = s; |
a0ed51b3 | 2452 | register UV n; |
fe14fcc3 | 2453 | |
a0ed51b3 LW |
2454 | while (len-- && *s) { |
2455 | tmp = strchr((char *) PL_hexdigit, *s++); | |
2456 | if (!tmp) { | |
e3fdf988 | 2457 | if (*(s-1) == '_' || (*(s-1) == 'x' && retval == 0)) |
a0ed51b3 LW |
2458 | continue; |
2459 | else { | |
d008e5eb | 2460 | dTHR; |
a0ed51b3 | 2461 | --s; |
599cee73 PM |
2462 | if (ckWARN(WARN_UNSAFE)) |
2463 | warner(WARN_UNSAFE,"Illegal hex digit ignored"); | |
a0ed51b3 LW |
2464 | break; |
2465 | } | |
2466 | } | |
2467 | n = retval << 4; | |
55497cff | 2468 | if (!overflowed && (n >> 4) != retval) { |
2469 | warn("Integer overflow in hex number"); | |
2470 | overflowed = TRUE; | |
2471 | } | |
3280af22 | 2472 | retval = n | ((tmp - PL_hexdigit) & 15); |
6ff81951 | 2473 | } |
fe14fcc3 LW |
2474 | *retlen = s - start; |
2475 | return retval; | |
2476 | } | |
760ac839 | 2477 | |
491527d0 GS |
2478 | char* |
2479 | find_script(char *scriptname, bool dosearch, char **search_ext, I32 flags) | |
2480 | { | |
2481 | dTHR; | |
2482 | char *xfound = Nullch; | |
2483 | char *xfailed = Nullch; | |
0f31cffe | 2484 | char tmpbuf[MAXPATHLEN]; |
491527d0 GS |
2485 | register char *s; |
2486 | I32 len; | |
2487 | int retval; | |
2488 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
2489 | # define SEARCH_EXTS ".bat", ".cmd", NULL | |
2490 | # define MAX_EXT_LEN 4 | |
2491 | #endif | |
2492 | #ifdef OS2 | |
2493 | # define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL | |
2494 | # define MAX_EXT_LEN 4 | |
2495 | #endif | |
2496 | #ifdef VMS | |
2497 | # define SEARCH_EXTS ".pl", ".com", NULL | |
2498 | # define MAX_EXT_LEN 4 | |
2499 | #endif | |
2500 | /* additional extensions to try in each dir if scriptname not found */ | |
2501 | #ifdef SEARCH_EXTS | |
2502 | char *exts[] = { SEARCH_EXTS }; | |
2503 | char **ext = search_ext ? search_ext : exts; | |
2504 | int extidx = 0, i = 0; | |
2505 | char *curext = Nullch; | |
2506 | #else | |
2507 | # define MAX_EXT_LEN 0 | |
2508 | #endif | |
2509 | ||
2510 | /* | |
2511 | * If dosearch is true and if scriptname does not contain path | |
2512 | * delimiters, search the PATH for scriptname. | |
2513 | * | |
2514 | * If SEARCH_EXTS is also defined, will look for each | |
2515 | * scriptname{SEARCH_EXTS} whenever scriptname is not found | |
2516 | * while searching the PATH. | |
2517 | * | |
2518 | * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search | |
2519 | * proceeds as follows: | |
2520 | * If DOSISH or VMSISH: | |
2521 | * + look for ./scriptname{,.foo,.bar} | |
2522 | * + search the PATH for scriptname{,.foo,.bar} | |
2523 | * | |
2524 | * If !DOSISH: | |
2525 | * + look *only* in the PATH for scriptname{,.foo,.bar} (note | |
2526 | * this will not look in '.' if it's not in the PATH) | |
2527 | */ | |
84486fc6 | 2528 | tmpbuf[0] = '\0'; |
491527d0 GS |
2529 | |
2530 | #ifdef VMS | |
2531 | # ifdef ALWAYS_DEFTYPES | |
2532 | len = strlen(scriptname); | |
2533 | if (!(len == 1 && *scriptname == '-') && scriptname[len-1] != ':') { | |
2534 | int hasdir, idx = 0, deftypes = 1; | |
2535 | bool seen_dot = 1; | |
2536 | ||
2537 | hasdir = !dosearch || (strpbrk(scriptname,":[</") != Nullch) ; | |
2538 | # else | |
2539 | if (dosearch) { | |
2540 | int hasdir, idx = 0, deftypes = 1; | |
2541 | bool seen_dot = 1; | |
2542 | ||
2543 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
2544 | # endif | |
2545 | /* The first time through, just add SEARCH_EXTS to whatever we | |
2546 | * already have, so we can check for default file types. */ | |
2547 | while (deftypes || | |
84486fc6 | 2548 | (!hasdir && my_trnlnm("DCL$PATH",tmpbuf,idx++)) ) |
491527d0 GS |
2549 | { |
2550 | if (deftypes) { | |
2551 | deftypes = 0; | |
84486fc6 | 2552 | *tmpbuf = '\0'; |
491527d0 | 2553 | } |
84486fc6 GS |
2554 | if ((strlen(tmpbuf) + strlen(scriptname) |
2555 | + MAX_EXT_LEN) >= sizeof tmpbuf) | |
491527d0 | 2556 | continue; /* don't search dir with too-long name */ |
84486fc6 | 2557 | strcat(tmpbuf, scriptname); |
491527d0 GS |
2558 | #else /* !VMS */ |
2559 | ||
2560 | #ifdef DOSISH | |
2561 | if (strEQ(scriptname, "-")) | |
2562 | dosearch = 0; | |
2563 | if (dosearch) { /* Look in '.' first. */ | |
2564 | char *cur = scriptname; | |
2565 | #ifdef SEARCH_EXTS | |
2566 | if ((curext = strrchr(scriptname,'.'))) /* possible current ext */ | |
2567 | while (ext[i]) | |
2568 | if (strEQ(ext[i++],curext)) { | |
2569 | extidx = -1; /* already has an ext */ | |
2570 | break; | |
2571 | } | |
2572 | do { | |
2573 | #endif | |
2574 | DEBUG_p(PerlIO_printf(Perl_debug_log, | |
2575 | "Looking for %s\n",cur)); | |
017f25f1 IZ |
2576 | if (PerlLIO_stat(cur,&PL_statbuf) >= 0 |
2577 | && !S_ISDIR(PL_statbuf.st_mode)) { | |
491527d0 GS |
2578 | dosearch = 0; |
2579 | scriptname = cur; | |
2580 | #ifdef SEARCH_EXTS | |
2581 | break; | |
2582 | #endif | |
2583 | } | |
2584 | #ifdef SEARCH_EXTS | |
2585 | if (cur == scriptname) { | |
2586 | len = strlen(scriptname); | |
84486fc6 | 2587 | if (len+MAX_EXT_LEN+1 >= sizeof(tmpbuf)) |
491527d0 | 2588 | break; |
84486fc6 | 2589 | cur = strcpy(tmpbuf, scriptname); |
491527d0 GS |
2590 | } |
2591 | } while (extidx >= 0 && ext[extidx] /* try an extension? */ | |
84486fc6 | 2592 | && strcpy(tmpbuf+len, ext[extidx++])); |
491527d0 GS |
2593 | #endif |
2594 | } | |
2595 | #endif | |
2596 | ||
2597 | if (dosearch && !strchr(scriptname, '/') | |
2598 | #ifdef DOSISH | |
2599 | && !strchr(scriptname, '\\') | |
2600 | #endif | |
2601 | && (s = PerlEnv_getenv("PATH"))) { | |
2602 | bool seen_dot = 0; | |
2603 | ||
3280af22 NIS |
2604 | PL_bufend = s + strlen(s); |
2605 | while (s < PL_bufend) { | |
491527d0 GS |
2606 | #if defined(atarist) || defined(DOSISH) |
2607 | for (len = 0; *s | |
2608 | # ifdef atarist | |
2609 | && *s != ',' | |
2610 | # endif | |
2611 | && *s != ';'; len++, s++) { | |
84486fc6 GS |
2612 | if (len < sizeof tmpbuf) |
2613 | tmpbuf[len] = *s; | |
491527d0 | 2614 | } |
84486fc6 GS |
2615 | if (len < sizeof tmpbuf) |
2616 | tmpbuf[len] = '\0'; | |
491527d0 | 2617 | #else /* ! (atarist || DOSISH) */ |
3280af22 | 2618 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend, |
491527d0 GS |
2619 | ':', |
2620 | &len); | |
2621 | #endif /* ! (atarist || DOSISH) */ | |
3280af22 | 2622 | if (s < PL_bufend) |
491527d0 | 2623 | s++; |
84486fc6 | 2624 | if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf) |
491527d0 GS |
2625 | continue; /* don't search dir with too-long name */ |
2626 | if (len | |
2627 | #if defined(atarist) || defined(DOSISH) | |
84486fc6 GS |
2628 | && tmpbuf[len - 1] != '/' |
2629 | && tmpbuf[len - 1] != '\\' | |
491527d0 GS |
2630 | #endif |
2631 | ) | |
84486fc6 GS |
2632 | tmpbuf[len++] = '/'; |
2633 | if (len == 2 && tmpbuf[0] == '.') | |
491527d0 | 2634 | seen_dot = 1; |
84486fc6 | 2635 | (void)strcpy(tmpbuf + len, scriptname); |
491527d0 GS |
2636 | #endif /* !VMS */ |
2637 | ||
2638 | #ifdef SEARCH_EXTS | |
84486fc6 | 2639 | len = strlen(tmpbuf); |
491527d0 GS |
2640 | if (extidx > 0) /* reset after previous loop */ |
2641 | extidx = 0; | |
2642 | do { | |
2643 | #endif | |
84486fc6 | 2644 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tmpbuf)); |
3280af22 | 2645 | retval = PerlLIO_stat(tmpbuf,&PL_statbuf); |
017f25f1 IZ |
2646 | if (S_ISDIR(PL_statbuf.st_mode)) { |
2647 | retval = -1; | |
2648 | } | |
491527d0 GS |
2649 | #ifdef SEARCH_EXTS |
2650 | } while ( retval < 0 /* not there */ | |
2651 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
84486fc6 | 2652 | && strcpy(tmpbuf+len, ext[extidx++]) |
491527d0 GS |
2653 | ); |
2654 | #endif | |
2655 | if (retval < 0) | |
2656 | continue; | |
3280af22 NIS |
2657 | if (S_ISREG(PL_statbuf.st_mode) |
2658 | && cando(S_IRUSR,TRUE,&PL_statbuf) | |
491527d0 | 2659 | #ifndef DOSISH |
3280af22 | 2660 | && cando(S_IXUSR,TRUE,&PL_statbuf) |
491527d0 GS |
2661 | #endif |
2662 | ) | |
2663 | { | |
84486fc6 | 2664 | xfound = tmpbuf; /* bingo! */ |
491527d0 GS |
2665 | break; |
2666 | } | |
2667 | if (!xfailed) | |
84486fc6 | 2668 | xfailed = savepv(tmpbuf); |
491527d0 GS |
2669 | } |
2670 | #ifndef DOSISH | |
017f25f1 IZ |
2671 | if (!xfound && !seen_dot && !xfailed && |
2672 | (PerlLIO_stat(scriptname,&PL_statbuf) < 0 | |
2673 | || S_ISDIR(PL_statbuf.st_mode))) | |
491527d0 GS |
2674 | #endif |
2675 | seen_dot = 1; /* Disable message. */ | |
9ccb31f9 GS |
2676 | if (!xfound) { |
2677 | if (flags & 1) { /* do or die? */ | |
2678 | croak("Can't %s %s%s%s", | |
2679 | (xfailed ? "execute" : "find"), | |
2680 | (xfailed ? xfailed : scriptname), | |
2681 | (xfailed ? "" : " on PATH"), | |
2682 | (xfailed || seen_dot) ? "" : ", '.' not in PATH"); | |
2683 | } | |
2684 | scriptname = Nullch; | |
2685 | } | |
491527d0 GS |
2686 | if (xfailed) |
2687 | Safefree(xfailed); | |
2688 | scriptname = xfound; | |
2689 | } | |
9ccb31f9 | 2690 | return (scriptname ? savepv(scriptname) : Nullch); |
491527d0 GS |
2691 | } |
2692 | ||
2693 | ||
11343788 | 2694 | #ifdef USE_THREADS |
12ca11f6 MB |
2695 | #ifdef FAKE_THREADS |
2696 | /* Very simplistic scheduler for now */ | |
2697 | void | |
2698 | schedule(void) | |
2699 | { | |
c7848ba1 | 2700 | thr = thr->i.next_run; |
12ca11f6 MB |
2701 | } |
2702 | ||
2703 | void | |
22c35a8c | 2704 | perl_cond_init(perl_cond *cp) |
12ca11f6 MB |
2705 | { |
2706 | *cp = 0; | |
2707 | } | |
2708 | ||
2709 | void | |
22c35a8c | 2710 | perl_cond_signal(perl_cond *cp) |
12ca11f6 | 2711 | { |
51dd5992 | 2712 | perl_os_thread t; |
12ca11f6 MB |
2713 | perl_cond cond = *cp; |
2714 | ||
2715 | if (!cond) | |
2716 | return; | |
2717 | t = cond->thread; | |
2718 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
2719 | t->i.next_run = thr->i.next_run; |
2720 | thr->i.next_run->i.prev_run = t; | |
2721 | t->i.prev_run = thr; | |
2722 | thr->i.next_run = t; | |
2723 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
2724 | /* Remove from the wait queue */ |
2725 | *cp = cond->next; | |
2726 | Safefree(cond); | |
2727 | } | |
2728 | ||
2729 | void | |
22c35a8c | 2730 | perl_cond_broadcast(perl_cond *cp) |
12ca11f6 | 2731 | { |
51dd5992 | 2732 | perl_os_thread t; |
12ca11f6 MB |
2733 | perl_cond cond, cond_next; |
2734 | ||
2735 | for (cond = *cp; cond; cond = cond_next) { | |
2736 | t = cond->thread; | |
2737 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
2738 | t->i.next_run = thr->i.next_run; |
2739 | thr->i.next_run->i.prev_run = t; | |
2740 | t->i.prev_run = thr; | |
2741 | thr->i.next_run = t; | |
2742 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
2743 | /* Remove from the wait queue */ |
2744 | cond_next = cond->next; | |
2745 | Safefree(cond); | |
2746 | } | |
2747 | *cp = 0; | |
2748 | } | |
2749 | ||
2750 | void | |
22c35a8c | 2751 | perl_cond_wait(perl_cond *cp) |
12ca11f6 MB |
2752 | { |
2753 | perl_cond cond; | |
2754 | ||
c7848ba1 | 2755 | if (thr->i.next_run == thr) |
12ca11f6 MB |
2756 | croak("panic: perl_cond_wait called by last runnable thread"); |
2757 | ||
0f15f207 | 2758 | New(666, cond, 1, struct perl_wait_queue); |
12ca11f6 MB |
2759 | cond->thread = thr; |
2760 | cond->next = *cp; | |
2761 | *cp = cond; | |
c7848ba1 | 2762 | thr->i.wait_queue = cond; |
12ca11f6 | 2763 | /* Remove ourselves from runnable queue */ |
c7848ba1 MB |
2764 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
2765 | thr->i.prev_run->i.next_run = thr->i.next_run; | |
12ca11f6 MB |
2766 | } |
2767 | #endif /* FAKE_THREADS */ | |
2768 | ||
0d85d877 | 2769 | #ifdef PTHREAD_GETSPECIFIC_INT |
52e1cb5e | 2770 | struct perl_thread * |
11343788 MB |
2771 | getTHR _((void)) |
2772 | { | |
2773 | pthread_addr_t t; | |
2774 | ||
6b88bc9c | 2775 | if (pthread_getspecific(PL_thr_key, &t)) |
11343788 | 2776 | croak("panic: pthread_getspecific"); |
52e1cb5e | 2777 | return (struct perl_thread *) t; |
11343788 | 2778 | } |
0d85d877 | 2779 | #endif |
f93b4edd MB |
2780 | |
2781 | MAGIC * | |
8ac85365 | 2782 | condpair_magic(SV *sv) |
f93b4edd MB |
2783 | { |
2784 | MAGIC *mg; | |
2785 | ||
2786 | SvUPGRADE(sv, SVt_PVMG); | |
2787 | mg = mg_find(sv, 'm'); | |
2788 | if (!mg) { | |
2789 | condpair_t *cp; | |
2790 | ||
2791 | New(53, cp, 1, condpair_t); | |
2792 | MUTEX_INIT(&cp->mutex); | |
2793 | COND_INIT(&cp->owner_cond); | |
2794 | COND_INIT(&cp->cond); | |
2795 | cp->owner = 0; | |
940cb80d | 2796 | LOCK_SV_MUTEX; |
f93b4edd MB |
2797 | mg = mg_find(sv, 'm'); |
2798 | if (mg) { | |
2799 | /* someone else beat us to initialising it */ | |
940cb80d | 2800 | UNLOCK_SV_MUTEX; |
f93b4edd MB |
2801 | MUTEX_DESTROY(&cp->mutex); |
2802 | COND_DESTROY(&cp->owner_cond); | |
2803 | COND_DESTROY(&cp->cond); | |
2804 | Safefree(cp); | |
2805 | } | |
2806 | else { | |
2807 | sv_magic(sv, Nullsv, 'm', 0, 0); | |
2808 | mg = SvMAGIC(sv); | |
2809 | mg->mg_ptr = (char *)cp; | |
565764a8 | 2810 | mg->mg_len = sizeof(cp); |
940cb80d | 2811 | UNLOCK_SV_MUTEX; |
8b73bbec | 2812 | DEBUG_S(WITH_THR(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 2813 | "%p: condpair_magic %p\n", thr, sv));) |
f93b4edd MB |
2814 | } |
2815 | } | |
2816 | return mg; | |
2817 | } | |
a863c7d1 MB |
2818 | |
2819 | /* | |
199100c8 MB |
2820 | * Make a new perl thread structure using t as a prototype. Some of the |
2821 | * fields for the new thread are copied from the prototype thread, t, | |
2822 | * so t should not be running in perl at the time this function is | |
2823 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the | |
2824 | * thread calling new_struct_thread) clearly satisfies this constraint. | |
a863c7d1 | 2825 | */ |
52e1cb5e JH |
2826 | struct perl_thread * |
2827 | new_struct_thread(struct perl_thread *t) | |
a863c7d1 | 2828 | { |
52e1cb5e | 2829 | struct perl_thread *thr; |
a863c7d1 | 2830 | SV *sv; |
199100c8 MB |
2831 | SV **svp; |
2832 | I32 i; | |
2833 | ||
2834 | sv = newSVpv("", 0); | |
52e1cb5e JH |
2835 | SvGROW(sv, sizeof(struct perl_thread) + 1); |
2836 | SvCUR_set(sv, sizeof(struct perl_thread)); | |
199100c8 | 2837 | thr = (Thread) SvPVX(sv); |
949ced2d | 2838 | #ifdef DEBUGGING |
52e1cb5e | 2839 | memset(thr, 0xab, sizeof(struct perl_thread)); |
533c011a NIS |
2840 | PL_markstack = 0; |
2841 | PL_scopestack = 0; | |
2842 | PL_savestack = 0; | |
2843 | PL_retstack = 0; | |
2844 | PL_dirty = 0; | |
2845 | PL_localizing = 0; | |
949ced2d GS |
2846 | Zero(&PL_hv_fetch_ent_mh, 1, HE); |
2847 | #else | |
2848 | Zero(thr, 1, struct perl_thread); | |
2849 | #endif | |
199100c8 MB |
2850 | |
2851 | thr->oursv = sv; | |
d55594ae | 2852 | init_stacks(ARGS); |
a863c7d1 | 2853 | |
533c011a | 2854 | PL_curcop = &PL_compiling; |
199100c8 | 2855 | thr->cvcache = newHV(); |
54b9620d | 2856 | thr->threadsv = newAV(); |
a863c7d1 | 2857 | thr->specific = newAV(); |
38a03e6e MB |
2858 | thr->errsv = newSVpv("", 0); |
2859 | thr->errhv = newHV(); | |
a863c7d1 MB |
2860 | thr->flags = THRf_R_JOINABLE; |
2861 | MUTEX_INIT(&thr->mutex); | |
199100c8 | 2862 | |
d55594ae GS |
2863 | /* top_env needs to be non-zero. It points to an area |
2864 | in which longjmp() stuff is stored, as C callstack | |
2865 | info there at least is thread specific this has to | |
2866 | be per-thread. Otherwise a 'die' in a thread gives | |
2867 | that thread the C stack of last thread to do an eval {}! | |
2868 | See comments in scope.h | |
2869 | Initialize top entry (as in perl.c for main thread) | |
2870 | */ | |
533c011a NIS |
2871 | PL_start_env.je_prev = NULL; |
2872 | PL_start_env.je_ret = -1; | |
2873 | PL_start_env.je_mustcatch = TRUE; | |
2874 | PL_top_env = &PL_start_env; | |
2875 | ||
2876 | PL_in_eval = FALSE; | |
2877 | PL_restartop = 0; | |
2878 | ||
b099ddc0 GS |
2879 | PL_statname = NEWSV(66,0); |
2880 | PL_maxscream = -1; | |
2881 | PL_regcompp = FUNC_NAME_TO_PTR(pregcomp); | |
2882 | PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags); | |
2883 | PL_regindent = 0; | |
2884 | PL_reginterp_cnt = 0; | |
2885 | PL_lastscream = Nullsv; | |
2886 | PL_screamfirst = 0; | |
2887 | PL_screamnext = 0; | |
2888 | PL_reg_start_tmp = 0; | |
2889 | PL_reg_start_tmpl = 0; | |
2890 | ||
2891 | /* parent thread's data needs to be locked while we make copy */ | |
2892 | MUTEX_LOCK(&t->mutex); | |
2893 | ||
2894 | PL_curcop = t->Tcurcop; /* XXX As good a guess as any? */ | |
2895 | PL_defstash = t->Tdefstash; /* XXX maybe these should */ | |
2896 | PL_curstash = t->Tcurstash; /* always be set to main? */ | |
2897 | ||
6b88bc9c | 2898 | PL_tainted = t->Ttainted; |
84fee439 NIS |
2899 | PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */ |
2900 | PL_nrs = newSVsv(t->Tnrs); | |
2901 | PL_rs = SvREFCNT_inc(PL_nrs); | |
2902 | PL_last_in_gv = Nullgv; | |
2903 | PL_ofslen = t->Tofslen; | |
2904 | PL_ofs = savepvn(t->Tofs, PL_ofslen); | |
2905 | PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); | |
2906 | PL_chopset = t->Tchopset; | |
2907 | PL_formtarget = newSVsv(t->Tformtarget); | |
2908 | PL_bodytarget = newSVsv(t->Tbodytarget); | |
2909 | PL_toptarget = newSVsv(t->Ttoptarget); | |
533c011a | 2910 | |
54b9620d MB |
2911 | /* Initialise all per-thread SVs that the template thread used */ |
2912 | svp = AvARRAY(t->threadsv); | |
93965878 | 2913 | for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) { |
533c011a | 2914 | if (*svp && *svp != &PL_sv_undef) { |
199100c8 | 2915 | SV *sv = newSVsv(*svp); |
54b9620d | 2916 | av_store(thr->threadsv, i, sv); |
533c011a | 2917 | sv_magic(sv, 0, 0, &PL_threadsv_names[i], 1); |
8b73bbec | 2918 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
54b9620d | 2919 | "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr)); |
199100c8 MB |
2920 | } |
2921 | } | |
940cb80d | 2922 | thr->threadsvp = AvARRAY(thr->threadsv); |
199100c8 | 2923 | |
533c011a NIS |
2924 | MUTEX_LOCK(&PL_threads_mutex); |
2925 | PL_nthreads++; | |
2926 | thr->tid = ++PL_threadnum; | |
199100c8 MB |
2927 | thr->next = t->next; |
2928 | thr->prev = t; | |
2929 | t->next = thr; | |
2930 | thr->next->prev = thr; | |
533c011a | 2931 | MUTEX_UNLOCK(&PL_threads_mutex); |
a863c7d1 | 2932 | |
b099ddc0 GS |
2933 | /* done copying parent's state */ |
2934 | MUTEX_UNLOCK(&t->mutex); | |
2935 | ||
a863c7d1 MB |
2936 | #ifdef HAVE_THREAD_INTERN |
2937 | init_thread_intern(thr); | |
a863c7d1 | 2938 | #endif /* HAVE_THREAD_INTERN */ |
a863c7d1 MB |
2939 | return thr; |
2940 | } | |
11343788 | 2941 | #endif /* USE_THREADS */ |
760ac839 LW |
2942 | |
2943 | #ifdef HUGE_VAL | |
2944 | /* | |
2945 | * This hack is to force load of "huge" support from libm.a | |
2946 | * So it is in perl for (say) POSIX to use. | |
2947 | * Needed for SunOS with Sun's 'acc' for example. | |
2948 | */ | |
2949 | double | |
8ac85365 | 2950 | Perl_huge(void) |
760ac839 LW |
2951 | { |
2952 | return HUGE_VAL; | |
2953 | } | |
2954 | #endif | |
4e35701f | 2955 | |
22239a37 NIS |
2956 | #ifdef PERL_GLOBAL_STRUCT |
2957 | struct perl_vars * | |
2958 | Perl_GetVars(void) | |
2959 | { | |
533c011a | 2960 | return &PL_Vars; |
22239a37 | 2961 | } |
31fb1209 NIS |
2962 | #endif |
2963 | ||
2964 | char ** | |
2965 | get_op_names(void) | |
2966 | { | |
22c35a8c | 2967 | return PL_op_name; |
31fb1209 NIS |
2968 | } |
2969 | ||
2970 | char ** | |
2971 | get_op_descs(void) | |
2972 | { | |
22c35a8c | 2973 | return PL_op_desc; |
31fb1209 | 2974 | } |
9e6b2b00 GS |
2975 | |
2976 | char * | |
2977 | get_no_modify(void) | |
2978 | { | |
22c35a8c | 2979 | return (char*)PL_no_modify; |
9e6b2b00 GS |
2980 | } |
2981 | ||
2982 | U32 * | |
2983 | get_opargs(void) | |
2984 | { | |
22c35a8c | 2985 | return PL_opargs; |
9e6b2b00 | 2986 | } |
51aa15f3 | 2987 | |
51aa15f3 GS |
2988 | SV ** |
2989 | get_specialsv_list(void) | |
2990 | { | |
3280af22 | 2991 | return PL_specialsv_list; |
f55ee38a | 2992 | } |
dc9e4912 GS |
2993 | |
2994 | ||
2995 | MGVTBL* | |
2996 | get_vtbl(int vtbl_id) | |
2997 | { | |
2998 | MGVTBL* result = Null(MGVTBL*); | |
2999 | ||
3000 | switch(vtbl_id) { | |
3001 | case want_vtbl_sv: | |
3002 | result = &PL_vtbl_sv; | |
3003 | break; | |
3004 | case want_vtbl_env: | |
3005 | result = &PL_vtbl_env; | |
3006 | break; | |
3007 | case want_vtbl_envelem: | |
3008 | result = &PL_vtbl_envelem; | |
3009 | break; | |
3010 | case want_vtbl_sig: | |
3011 | result = &PL_vtbl_sig; | |
3012 | break; | |
3013 | case want_vtbl_sigelem: | |
3014 | result = &PL_vtbl_sigelem; | |
3015 | break; | |
3016 | case want_vtbl_pack: | |
3017 | result = &PL_vtbl_pack; | |
3018 | break; | |
3019 | case want_vtbl_packelem: | |
3020 | result = &PL_vtbl_packelem; | |
3021 | break; | |
3022 | case want_vtbl_dbline: | |
3023 | result = &PL_vtbl_dbline; | |
3024 | break; | |
3025 | case want_vtbl_isa: | |
3026 | result = &PL_vtbl_isa; | |
3027 | break; | |
3028 | case want_vtbl_isaelem: | |
3029 | result = &PL_vtbl_isaelem; | |
3030 | break; | |
3031 | case want_vtbl_arylen: | |
3032 | result = &PL_vtbl_arylen; | |
3033 | break; | |
3034 | case want_vtbl_glob: | |
3035 | result = &PL_vtbl_glob; | |
3036 | break; | |
3037 | case want_vtbl_mglob: | |
3038 | result = &PL_vtbl_mglob; | |
3039 | break; | |
3040 | case want_vtbl_nkeys: | |
3041 | result = &PL_vtbl_nkeys; | |
3042 | break; | |
3043 | case want_vtbl_taint: | |
3044 | result = &PL_vtbl_taint; | |
3045 | break; | |
3046 | case want_vtbl_substr: | |
3047 | result = &PL_vtbl_substr; | |
3048 | break; | |
3049 | case want_vtbl_vec: | |
3050 | result = &PL_vtbl_vec; | |
3051 | break; | |
3052 | case want_vtbl_pos: | |
3053 | result = &PL_vtbl_pos; | |
3054 | break; | |
3055 | case want_vtbl_bm: | |
3056 | result = &PL_vtbl_bm; | |
3057 | break; | |
3058 | case want_vtbl_fm: | |
3059 | result = &PL_vtbl_fm; | |
3060 | break; | |
3061 | case want_vtbl_uvar: | |
3062 | result = &PL_vtbl_uvar; | |
3063 | break; | |
3064 | #ifdef USE_THREADS | |
3065 | case want_vtbl_mutex: | |
3066 | result = &PL_vtbl_mutex; | |
3067 | break; | |
3068 | #endif | |
3069 | case want_vtbl_defelem: | |
3070 | result = &PL_vtbl_defelem; | |
3071 | break; | |
3072 | case want_vtbl_regexp: | |
3073 | result = &PL_vtbl_regexp; | |
3074 | break; | |
3075 | case want_vtbl_regdata: | |
3076 | result = &PL_vtbl_regdata; | |
3077 | break; | |
3078 | case want_vtbl_regdatum: | |
3079 | result = &PL_vtbl_regdatum; | |
3080 | break; | |
3c90161d | 3081 | #ifdef USE_LOCALE_COLLATE |
dc9e4912 GS |
3082 | case want_vtbl_collxfrm: |
3083 | result = &PL_vtbl_collxfrm; | |
3084 | break; | |
3c90161d | 3085 | #endif |
dc9e4912 GS |
3086 | case want_vtbl_amagic: |
3087 | result = &PL_vtbl_amagic; | |
3088 | break; | |
3089 | case want_vtbl_amagicelem: | |
3090 | result = &PL_vtbl_amagicelem; | |
3091 | break; | |
3092 | } | |
3093 | return result; | |
3094 | } | |
3095 |