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 | |
a953d64f JH |
18 | /* XXX Configure test needed */ |
19 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) || defined(__NetBSD__) | |
a687059c | 20 | #include <signal.h> |
62b28dd9 | 21 | #endif |
a687059c | 22 | |
36477c24 | 23 | #ifndef SIG_ERR |
24 | # define SIG_ERR ((Sighandler_t) -1) | |
25 | #endif | |
26 | ||
bd4080b3 | 27 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
85e6fe83 | 28 | #ifdef I_UNISTD |
8990e307 LW |
29 | # include <unistd.h> |
30 | #endif | |
31 | ||
a687059c LW |
32 | #ifdef I_VFORK |
33 | # include <vfork.h> | |
34 | #endif | |
35 | ||
94b6baf5 AD |
36 | /* Put this after #includes because fork and vfork prototypes may |
37 | conflict. | |
38 | */ | |
39 | #ifndef HAS_VFORK | |
40 | # define vfork fork | |
41 | #endif | |
42 | ||
fe14fcc3 LW |
43 | #ifdef I_FCNTL |
44 | # include <fcntl.h> | |
45 | #endif | |
46 | #ifdef I_SYS_FILE | |
47 | # include <sys/file.h> | |
48 | #endif | |
49 | ||
ff68c719 | 50 | #ifdef I_SYS_WAIT |
51 | # include <sys/wait.h> | |
52 | #endif | |
53 | ||
8d063cd8 | 54 | #define FLUSH |
8d063cd8 | 55 | |
a0d0e21e | 56 | #ifdef LEAKTEST |
a0d0e21e | 57 | |
8c52afec IZ |
58 | static void xstat _((int)); |
59 | long xcount[MAXXCOUNT]; | |
60 | long lastxcount[MAXXCOUNT]; | |
61 | long xycount[MAXXCOUNT][MAXYCOUNT]; | |
62 | long lastxycount[MAXXCOUNT][MAXYCOUNT]; | |
63 | ||
a0d0e21e | 64 | #endif |
a863c7d1 | 65 | |
55497cff | 66 | #ifndef MYMALLOC |
de3bb511 | 67 | |
8d063cd8 LW |
68 | /* paranoid version of malloc */ |
69 | ||
a687059c LW |
70 | /* NOTE: Do not call the next three routines directly. Use the macros |
71 | * in handy.h, so that we can easily redefine everything to do tracking of | |
72 | * allocated hunks back to the original New to track down any memory leaks. | |
20cec16a | 73 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c LW |
74 | */ |
75 | ||
bd4080b3 | 76 | Malloc_t |
f0f333f4 | 77 | safemalloc(MEM_SIZE size) |
8d063cd8 | 78 | { |
bd4080b3 | 79 | Malloc_t ptr; |
55497cff | 80 | #ifdef HAS_64K_LIMIT |
62b28dd9 | 81 | if (size > 0xffff) { |
760ac839 | 82 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
79072805 | 83 | my_exit(1); |
62b28dd9 | 84 | } |
55497cff | 85 | #endif /* HAS_64K_LIMIT */ |
34de22dd LW |
86 | #ifdef DEBUGGING |
87 | if ((long)size < 0) | |
463ee0b2 | 88 | croak("panic: malloc"); |
34de22dd | 89 | #endif |
6ad3d225 | 90 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 | 91 | #if !(defined(I286) || defined(atarist)) |
3280af22 | 92 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); |
79072805 | 93 | #else |
6b88bc9c | 94 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); |
8d063cd8 LW |
95 | #endif |
96 | if (ptr != Nullch) | |
97 | return ptr; | |
3280af22 | 98 | else if (PL_nomemok) |
7c0587c8 | 99 | return Nullch; |
8d063cd8 | 100 | else { |
22c35a8c | 101 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
79072805 | 102 | my_exit(1); |
4e35701f | 103 | return Nullch; |
8d063cd8 LW |
104 | } |
105 | /*NOTREACHED*/ | |
106 | } | |
107 | ||
108 | /* paranoid version of realloc */ | |
109 | ||
bd4080b3 | 110 | Malloc_t |
f0f333f4 | 111 | saferealloc(Malloc_t where,MEM_SIZE size) |
8d063cd8 | 112 | { |
bd4080b3 | 113 | Malloc_t ptr; |
ecfc5424 | 114 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
6ad3d225 | 115 | Malloc_t PerlMem_realloc(); |
ecfc5424 | 116 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 | 117 | |
55497cff | 118 | #ifdef HAS_64K_LIMIT |
5f05dabc | 119 | if (size > 0xffff) { |
120 | PerlIO_printf(PerlIO_stderr(), | |
121 | "Reallocation too large: %lx\n", size) FLUSH; | |
122 | my_exit(1); | |
123 | } | |
55497cff | 124 | #endif /* HAS_64K_LIMIT */ |
7614df0c JD |
125 | if (!size) { |
126 | safefree(where); | |
127 | return NULL; | |
128 | } | |
129 | ||
378cc40b | 130 | if (!where) |
7614df0c | 131 | return safemalloc(size); |
34de22dd LW |
132 | #ifdef DEBUGGING |
133 | if ((long)size < 0) | |
463ee0b2 | 134 | croak("panic: realloc"); |
34de22dd | 135 | #endif |
7614df0c | 136 | ptr = PerlMem_realloc(where,size); |
79072805 LW |
137 | |
138 | #if !(defined(I286) || defined(atarist)) | |
139 | DEBUG_m( { | |
3280af22 NIS |
140 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,PL_an++); |
141 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size); | |
79072805 LW |
142 | } ) |
143 | #else | |
144 | DEBUG_m( { | |
6b88bc9c GS |
145 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,PL_an++); |
146 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size); | |
79072805 | 147 | } ) |
8d063cd8 | 148 | #endif |
79072805 | 149 | |
8d063cd8 LW |
150 | if (ptr != Nullch) |
151 | return ptr; | |
3280af22 | 152 | else if (PL_nomemok) |
7c0587c8 | 153 | return Nullch; |
8d063cd8 | 154 | else { |
22c35a8c | 155 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
79072805 | 156 | my_exit(1); |
4e35701f | 157 | return Nullch; |
8d063cd8 LW |
158 | } |
159 | /*NOTREACHED*/ | |
160 | } | |
161 | ||
162 | /* safe version of free */ | |
163 | ||
54310121 | 164 | Free_t |
f0f333f4 | 165 | safefree(Malloc_t where) |
8d063cd8 | 166 | { |
79072805 | 167 | #if !(defined(I286) || defined(atarist)) |
3280af22 | 168 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,PL_an++)); |
79072805 | 169 | #else |
6b88bc9c | 170 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,PL_an++)); |
8d063cd8 | 171 | #endif |
378cc40b | 172 | if (where) { |
de3bb511 | 173 | /*SUPPRESS 701*/ |
6ad3d225 | 174 | PerlMem_free(where); |
378cc40b | 175 | } |
8d063cd8 LW |
176 | } |
177 | ||
1050c9ca | 178 | /* safe version of calloc */ |
179 | ||
bd4080b3 | 180 | Malloc_t |
f0f333f4 | 181 | safecalloc(MEM_SIZE count, MEM_SIZE size) |
1050c9ca | 182 | { |
bd4080b3 | 183 | Malloc_t ptr; |
1050c9ca | 184 | |
55497cff | 185 | #ifdef HAS_64K_LIMIT |
5f05dabc | 186 | if (size * count > 0xffff) { |
187 | PerlIO_printf(PerlIO_stderr(), | |
188 | "Allocation too large: %lx\n", size * count) FLUSH; | |
189 | my_exit(1); | |
190 | } | |
55497cff | 191 | #endif /* HAS_64K_LIMIT */ |
1050c9ca | 192 | #ifdef DEBUGGING |
193 | if ((long)size < 0 || (long)count < 0) | |
194 | croak("panic: calloc"); | |
195 | #endif | |
0b7c1c42 | 196 | size *= count; |
6ad3d225 | 197 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
1050c9ca | 198 | #if !(defined(I286) || defined(atarist)) |
3280af22 | 199 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); |
1050c9ca | 200 | #else |
6b88bc9c | 201 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); |
1050c9ca | 202 | #endif |
1050c9ca | 203 | if (ptr != Nullch) { |
204 | memset((void*)ptr, 0, size); | |
205 | return ptr; | |
206 | } | |
3280af22 | 207 | else if (PL_nomemok) |
1050c9ca | 208 | return Nullch; |
209 | else { | |
22c35a8c | 210 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
1050c9ca | 211 | my_exit(1); |
4e35701f | 212 | return Nullch; |
1050c9ca | 213 | } |
214 | /*NOTREACHED*/ | |
215 | } | |
216 | ||
55497cff | 217 | #endif /* !MYMALLOC */ |
de3bb511 | 218 | |
a687059c LW |
219 | #ifdef LEAKTEST |
220 | ||
8c52afec IZ |
221 | struct mem_test_strut { |
222 | union { | |
223 | long type; | |
224 | char c[2]; | |
225 | } u; | |
226 | long size; | |
227 | }; | |
228 | ||
229 | # define ALIGN sizeof(struct mem_test_strut) | |
230 | ||
231 | # define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size) | |
232 | # define typeof_chunk(ch) \ | |
233 | (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100) | |
234 | # define set_typeof_chunk(ch,t) \ | |
235 | (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100) | |
236 | #define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \ | |
237 | ? MAXYCOUNT - 1 \ | |
238 | : ( (size) > 40 \ | |
239 | ? ((size) - 1)/8 + 5 \ | |
240 | : ((size) - 1)/4)) | |
8d063cd8 | 241 | |
bd4080b3 | 242 | Malloc_t |
f0f333f4 | 243 | safexmalloc(I32 x, MEM_SIZE size) |
8d063cd8 | 244 | { |
8c52afec | 245 | register char* where = (char*)safemalloc(size + ALIGN); |
8d063cd8 | 246 | |
8c52afec IZ |
247 | xcount[x] += size; |
248 | xycount[x][SIZE_TO_Y(size)]++; | |
249 | set_typeof_chunk(where, x); | |
250 | sizeof_chunk(where) = size; | |
251 | return (Malloc_t)(where + ALIGN); | |
8d063cd8 | 252 | } |
8d063cd8 | 253 | |
bd4080b3 | 254 | Malloc_t |
8c52afec | 255 | safexrealloc(Malloc_t wh, MEM_SIZE size) |
a687059c | 256 | { |
8c52afec IZ |
257 | char *where = (char*)wh; |
258 | ||
259 | if (!wh) | |
260 | return safexmalloc(0,size); | |
261 | ||
262 | { | |
263 | MEM_SIZE old = sizeof_chunk(where - ALIGN); | |
264 | int t = typeof_chunk(where - ALIGN); | |
265 | register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN); | |
266 | ||
267 | xycount[t][SIZE_TO_Y(old)]--; | |
268 | xycount[t][SIZE_TO_Y(size)]++; | |
269 | xcount[t] += size - old; | |
270 | sizeof_chunk(new) = size; | |
271 | return (Malloc_t)(new + ALIGN); | |
272 | } | |
a687059c LW |
273 | } |
274 | ||
275 | void | |
8c52afec | 276 | safexfree(Malloc_t wh) |
a687059c | 277 | { |
79072805 | 278 | I32 x; |
8c52afec IZ |
279 | char *where = (char*)wh; |
280 | MEM_SIZE size; | |
281 | ||
a687059c LW |
282 | if (!where) |
283 | return; | |
284 | where -= ALIGN; | |
8c52afec | 285 | size = sizeof_chunk(where); |
a687059c | 286 | x = where[0] + 100 * where[1]; |
8c52afec IZ |
287 | xcount[x] -= size; |
288 | xycount[x][SIZE_TO_Y(size)]--; | |
a687059c LW |
289 | safefree(where); |
290 | } | |
291 | ||
bd4080b3 | 292 | Malloc_t |
f0f333f4 | 293 | safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size) |
1050c9ca | 294 | { |
8c52afec IZ |
295 | register char * where = (char*)safexmalloc(x, size * count + ALIGN); |
296 | xcount[x] += size; | |
297 | xycount[x][SIZE_TO_Y(size)]++; | |
298 | memset((void*)(where + ALIGN), 0, size * count); | |
299 | set_typeof_chunk(where, x); | |
300 | sizeof_chunk(where) = size; | |
301 | return (Malloc_t)(where + ALIGN); | |
1050c9ca | 302 | } |
303 | ||
7c0587c8 | 304 | static void |
8c52afec | 305 | xstat(int flag) |
8d063cd8 | 306 | { |
8c52afec IZ |
307 | register I32 i, j, total = 0; |
308 | I32 subtot[MAXYCOUNT]; | |
8d063cd8 | 309 | |
8c52afec IZ |
310 | for (j = 0; j < MAXYCOUNT; j++) { |
311 | subtot[j] = 0; | |
312 | } | |
313 | ||
314 | 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 | 315 | for (i = 0; i < MAXXCOUNT; i++) { |
8c52afec IZ |
316 | total += xcount[i]; |
317 | for (j = 0; j < MAXYCOUNT; j++) { | |
318 | subtot[j] += xycount[i][j]; | |
319 | } | |
320 | if (flag == 0 | |
321 | ? xcount[i] /* Have something */ | |
322 | : (flag == 2 | |
323 | ? xcount[i] != lastxcount[i] /* Changed */ | |
324 | : xcount[i] > lastxcount[i])) { /* Growed */ | |
325 | PerlIO_printf(PerlIO_stderr(),"%2d %02d %7ld ", i / 100, i % 100, | |
326 | flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]); | |
a687059c | 327 | lastxcount[i] = xcount[i]; |
8c52afec IZ |
328 | for (j = 0; j < MAXYCOUNT; j++) { |
329 | if ( flag == 0 | |
330 | ? xycount[i][j] /* Have something */ | |
331 | : (flag == 2 | |
332 | ? xycount[i][j] != lastxycount[i][j] /* Changed */ | |
333 | : xycount[i][j] > lastxycount[i][j])) { /* Growed */ | |
334 | PerlIO_printf(PerlIO_stderr(),"%3ld ", | |
335 | flag == 2 | |
336 | ? xycount[i][j] - lastxycount[i][j] | |
337 | : xycount[i][j]); | |
338 | lastxycount[i][j] = xycount[i][j]; | |
339 | } else { | |
340 | PerlIO_printf(PerlIO_stderr(), " . ", xycount[i][j]); | |
341 | } | |
342 | } | |
343 | PerlIO_printf(PerlIO_stderr(), "\n"); | |
344 | } | |
345 | } | |
346 | if (flag != 2) { | |
347 | PerlIO_printf(PerlIO_stderr(), "Total %7ld ", total); | |
348 | for (j = 0; j < MAXYCOUNT; j++) { | |
349 | if (subtot[j]) { | |
350 | PerlIO_printf(PerlIO_stderr(), "%3ld ", subtot[j]); | |
351 | } else { | |
352 | PerlIO_printf(PerlIO_stderr(), " . "); | |
353 | } | |
8d063cd8 | 354 | } |
8c52afec | 355 | PerlIO_printf(PerlIO_stderr(), "\n"); |
8d063cd8 | 356 | } |
8d063cd8 | 357 | } |
a687059c LW |
358 | |
359 | #endif /* LEAKTEST */ | |
8d063cd8 LW |
360 | |
361 | /* copy a string up to some (non-backslashed) delimiter, if any */ | |
362 | ||
363 | char * | |
8ac85365 | 364 | delimcpy(register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen) |
8d063cd8 | 365 | { |
fc36a67e | 366 | register I32 tolen; |
367 | for (tolen = 0; from < fromend; from++, tolen++) { | |
378cc40b LW |
368 | if (*from == '\\') { |
369 | if (from[1] == delim) | |
370 | from++; | |
fc36a67e | 371 | else { |
372 | if (to < toend) | |
373 | *to++ = *from; | |
374 | tolen++; | |
375 | from++; | |
376 | } | |
378cc40b | 377 | } |
bedebaa5 | 378 | else if (*from == delim) |
8d063cd8 | 379 | break; |
fc36a67e | 380 | if (to < toend) |
381 | *to++ = *from; | |
8d063cd8 | 382 | } |
bedebaa5 CS |
383 | if (to < toend) |
384 | *to = '\0'; | |
fc36a67e | 385 | *retlen = tolen; |
8d063cd8 LW |
386 | return from; |
387 | } | |
388 | ||
389 | /* return ptr to little string in big string, NULL if not found */ | |
378cc40b | 390 | /* This routine was donated by Corey Satten. */ |
8d063cd8 LW |
391 | |
392 | char * | |
8ac85365 | 393 | instr(register char *big, register char *little) |
378cc40b LW |
394 | { |
395 | register char *s, *x; | |
79072805 | 396 | register I32 first; |
378cc40b | 397 | |
a687059c LW |
398 | if (!little) |
399 | return big; | |
400 | first = *little++; | |
378cc40b LW |
401 | if (!first) |
402 | return big; | |
403 | while (*big) { | |
404 | if (*big++ != first) | |
405 | continue; | |
406 | for (x=big,s=little; *s; /**/ ) { | |
407 | if (!*x) | |
408 | return Nullch; | |
409 | if (*s++ != *x++) { | |
410 | s--; | |
411 | break; | |
412 | } | |
413 | } | |
414 | if (!*s) | |
415 | return big-1; | |
416 | } | |
417 | return Nullch; | |
418 | } | |
8d063cd8 | 419 | |
a687059c LW |
420 | /* same as instr but allow embedded nulls */ |
421 | ||
422 | char * | |
8ac85365 | 423 | ninstr(register char *big, register char *bigend, char *little, char *lend) |
8d063cd8 | 424 | { |
a687059c | 425 | register char *s, *x; |
79072805 | 426 | register I32 first = *little; |
a687059c | 427 | register char *littleend = lend; |
378cc40b | 428 | |
a0d0e21e | 429 | if (!first && little >= littleend) |
a687059c | 430 | return big; |
de3bb511 LW |
431 | if (bigend - big < littleend - little) |
432 | return Nullch; | |
a687059c LW |
433 | bigend -= littleend - little++; |
434 | while (big <= bigend) { | |
435 | if (*big++ != first) | |
436 | continue; | |
437 | for (x=big,s=little; s < littleend; /**/ ) { | |
438 | if (*s++ != *x++) { | |
439 | s--; | |
440 | break; | |
441 | } | |
442 | } | |
443 | if (s >= littleend) | |
444 | return big-1; | |
378cc40b | 445 | } |
a687059c LW |
446 | return Nullch; |
447 | } | |
448 | ||
449 | /* reverse of the above--find last substring */ | |
450 | ||
451 | char * | |
8ac85365 | 452 | rninstr(register char *big, char *bigend, char *little, char *lend) |
a687059c LW |
453 | { |
454 | register char *bigbeg; | |
455 | register char *s, *x; | |
79072805 | 456 | register I32 first = *little; |
a687059c LW |
457 | register char *littleend = lend; |
458 | ||
a0d0e21e | 459 | if (!first && little >= littleend) |
a687059c LW |
460 | return bigend; |
461 | bigbeg = big; | |
462 | big = bigend - (littleend - little++); | |
463 | while (big >= bigbeg) { | |
464 | if (*big-- != first) | |
465 | continue; | |
466 | for (x=big+2,s=little; s < littleend; /**/ ) { | |
467 | if (*s++ != *x++) { | |
468 | s--; | |
469 | break; | |
470 | } | |
471 | } | |
472 | if (s >= littleend) | |
473 | return big+1; | |
378cc40b | 474 | } |
a687059c | 475 | return Nullch; |
378cc40b | 476 | } |
a687059c | 477 | |
bbce6d69 | 478 | /* |
479 | * Set up for a new ctype locale. | |
480 | */ | |
55497cff | 481 | void |
8ac85365 | 482 | perl_new_ctype(char *newctype) |
ef7eada9 | 483 | { |
36477c24 | 484 | #ifdef USE_LOCALE_CTYPE |
485 | ||
bbce6d69 | 486 | int i; |
ef7eada9 | 487 | |
bbce6d69 | 488 | for (i = 0; i < 256; i++) { |
489 | if (isUPPER_LC(i)) | |
22c35a8c | 490 | PL_fold_locale[i] = toLOWER_LC(i); |
bbce6d69 | 491 | else if (isLOWER_LC(i)) |
22c35a8c | 492 | PL_fold_locale[i] = toUPPER_LC(i); |
bbce6d69 | 493 | else |
22c35a8c | 494 | PL_fold_locale[i] = i; |
bbce6d69 | 495 | } |
bbce6d69 | 496 | |
36477c24 | 497 | #endif /* USE_LOCALE_CTYPE */ |
498 | } | |
bbce6d69 | 499 | |
500 | /* | |
501 | * Set up for a new collation locale. | |
502 | */ | |
503 | void | |
8ac85365 | 504 | perl_new_collate(char *newcoll) |
bbce6d69 | 505 | { |
36477c24 | 506 | #ifdef USE_LOCALE_COLLATE |
507 | ||
bbce6d69 | 508 | if (! newcoll) { |
3280af22 NIS |
509 | if (PL_collation_name) { |
510 | ++PL_collation_ix; | |
511 | Safefree(PL_collation_name); | |
512 | PL_collation_name = NULL; | |
513 | PL_collation_standard = TRUE; | |
514 | PL_collxfrm_base = 0; | |
515 | PL_collxfrm_mult = 2; | |
bbce6d69 | 516 | } |
517 | return; | |
518 | } | |
519 | ||
3280af22 NIS |
520 | if (! PL_collation_name || strNE(PL_collation_name, newcoll)) { |
521 | ++PL_collation_ix; | |
522 | Safefree(PL_collation_name); | |
523 | PL_collation_name = savepv(newcoll); | |
524 | PL_collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); | |
bbce6d69 | 525 | |
bbce6d69 | 526 | { |
527 | /* 2: at most so many chars ('a', 'b'). */ | |
528 | /* 50: surely no system expands a char more. */ | |
529 | #define XFRMBUFSIZE (2 * 50) | |
530 | char xbuf[XFRMBUFSIZE]; | |
531 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); | |
532 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); | |
533 | SSize_t mult = fb - fa; | |
534 | if (mult < 1) | |
535 | croak("strxfrm() gets absurd"); | |
3280af22 NIS |
536 | PL_collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
537 | PL_collxfrm_mult = mult; | |
bbce6d69 | 538 | } |
bbce6d69 | 539 | } |
bbce6d69 | 540 | |
36477c24 | 541 | #endif /* USE_LOCALE_COLLATE */ |
542 | } | |
bbce6d69 | 543 | |
544 | /* | |
545 | * Set up for a new numeric locale. | |
546 | */ | |
547 | void | |
8ac85365 | 548 | perl_new_numeric(char *newnum) |
bbce6d69 | 549 | { |
36477c24 | 550 | #ifdef USE_LOCALE_NUMERIC |
551 | ||
bbce6d69 | 552 | if (! newnum) { |
3280af22 NIS |
553 | if (PL_numeric_name) { |
554 | Safefree(PL_numeric_name); | |
555 | PL_numeric_name = NULL; | |
556 | PL_numeric_standard = TRUE; | |
557 | PL_numeric_local = TRUE; | |
bbce6d69 | 558 | } |
559 | return; | |
560 | } | |
561 | ||
3280af22 NIS |
562 | if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) { |
563 | Safefree(PL_numeric_name); | |
564 | PL_numeric_name = savepv(newnum); | |
565 | PL_numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); | |
566 | PL_numeric_local = TRUE; | |
bbce6d69 | 567 | } |
36477c24 | 568 | |
569 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 570 | } |
571 | ||
572 | void | |
8ac85365 | 573 | perl_set_numeric_standard(void) |
bbce6d69 | 574 | { |
5f05dabc | 575 | #ifdef USE_LOCALE_NUMERIC |
576 | ||
3280af22 | 577 | if (! PL_numeric_standard) { |
bbce6d69 | 578 | setlocale(LC_NUMERIC, "C"); |
3280af22 NIS |
579 | PL_numeric_standard = TRUE; |
580 | PL_numeric_local = FALSE; | |
bbce6d69 | 581 | } |
5f05dabc | 582 | |
583 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 584 | } |
585 | ||
586 | void | |
8ac85365 | 587 | perl_set_numeric_local(void) |
bbce6d69 | 588 | { |
5f05dabc | 589 | #ifdef USE_LOCALE_NUMERIC |
590 | ||
3280af22 NIS |
591 | if (! PL_numeric_local) { |
592 | setlocale(LC_NUMERIC, PL_numeric_name); | |
593 | PL_numeric_standard = FALSE; | |
594 | PL_numeric_local = TRUE; | |
bbce6d69 | 595 | } |
bbce6d69 | 596 | |
36477c24 | 597 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 598 | } |
36477c24 | 599 | |
bbce6d69 | 600 | |
36477c24 | 601 | /* |
602 | * Initialize locale awareness. | |
603 | */ | |
f0c5b223 | 604 | int |
8ac85365 | 605 | perl_init_i18nl10n(int printwarn) |
f0c5b223 TB |
606 | { |
607 | int ok = 1; | |
608 | /* returns | |
609 | * 1 = set ok or not applicable, | |
610 | * 0 = fallback to C locale, | |
611 | * -1 = fallback to C locale failed | |
612 | */ | |
bbce6d69 | 613 | |
36477c24 | 614 | #ifdef USE_LOCALE |
bbce6d69 | 615 | |
36477c24 | 616 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 617 | char *curctype = NULL; |
36477c24 | 618 | #endif /* USE_LOCALE_CTYPE */ |
619 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 620 | char *curcoll = NULL; |
36477c24 | 621 | #endif /* USE_LOCALE_COLLATE */ |
622 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 623 | char *curnum = NULL; |
36477c24 | 624 | #endif /* USE_LOCALE_NUMERIC */ |
76e3520e GS |
625 | char *lc_all = PerlEnv_getenv("LC_ALL"); |
626 | char *lang = PerlEnv_getenv("LANG"); | |
bbce6d69 | 627 | bool setlocale_failure = FALSE; |
f0c5b223 | 628 | |
02b32252 CS |
629 | #ifdef LOCALE_ENVIRON_REQUIRED |
630 | ||
631 | /* | |
632 | * Ultrix setlocale(..., "") fails if there are no environment | |
633 | * variables from which to get a locale name. | |
634 | */ | |
635 | ||
636 | bool done = FALSE; | |
637 | ||
638 | #ifdef LC_ALL | |
639 | if (lang) { | |
640 | if (setlocale(LC_ALL, "")) | |
641 | done = TRUE; | |
642 | else | |
643 | setlocale_failure = TRUE; | |
644 | } | |
0644c9cb | 645 | if (!setlocale_failure) { |
02b32252 | 646 | #ifdef USE_LOCALE_CTYPE |
0644c9cb IS |
647 | if (! (curctype = |
648 | setlocale(LC_CTYPE, | |
649 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) | |
02b32252 CS |
650 | ? "" : Nullch))) |
651 | setlocale_failure = TRUE; | |
652 | #endif /* USE_LOCALE_CTYPE */ | |
653 | #ifdef USE_LOCALE_COLLATE | |
0644c9cb IS |
654 | if (! (curcoll = |
655 | setlocale(LC_COLLATE, | |
656 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) | |
02b32252 CS |
657 | ? "" : Nullch))) |
658 | setlocale_failure = TRUE; | |
659 | #endif /* USE_LOCALE_COLLATE */ | |
660 | #ifdef USE_LOCALE_NUMERIC | |
0644c9cb IS |
661 | if (! (curnum = |
662 | setlocale(LC_NUMERIC, | |
663 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) | |
02b32252 CS |
664 | ? "" : Nullch))) |
665 | setlocale_failure = TRUE; | |
666 | #endif /* USE_LOCALE_NUMERIC */ | |
667 | } | |
668 | ||
0644c9cb | 669 | #endif /* LC_ALL */ |
02b32252 | 670 | |
0644c9cb | 671 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
5f05dabc | 672 | |
0644c9cb | 673 | #ifdef LC_ALL |
bbce6d69 | 674 | if (! setlocale(LC_ALL, "")) |
675 | setlocale_failure = TRUE; | |
0644c9cb | 676 | #endif /* LC_ALL */ |
bbce6d69 | 677 | |
0644c9cb | 678 | if (!setlocale_failure) { |
36477c24 | 679 | #ifdef USE_LOCALE_CTYPE |
0644c9cb IS |
680 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
681 | setlocale_failure = TRUE; | |
36477c24 | 682 | #endif /* USE_LOCALE_CTYPE */ |
683 | #ifdef USE_LOCALE_COLLATE | |
0644c9cb IS |
684 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
685 | setlocale_failure = TRUE; | |
36477c24 | 686 | #endif /* USE_LOCALE_COLLATE */ |
687 | #ifdef USE_LOCALE_NUMERIC | |
0644c9cb IS |
688 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
689 | setlocale_failure = TRUE; | |
36477c24 | 690 | #endif /* USE_LOCALE_NUMERIC */ |
0644c9cb | 691 | } |
02b32252 | 692 | |
5f05dabc | 693 | if (setlocale_failure) { |
694 | char *p; | |
695 | bool locwarn = (printwarn > 1 || | |
696 | printwarn && | |
76e3520e | 697 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a | 698 | |
5f05dabc | 699 | if (locwarn) { |
700 | #ifdef LC_ALL | |
701 | ||
702 | PerlIO_printf(PerlIO_stderr(), | |
703 | "perl: warning: Setting locale failed.\n"); | |
704 | ||
705 | #else /* !LC_ALL */ | |
706 | ||
ef7eada9 | 707 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 708 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 | 709 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 710 | if (! curctype) |
5f05dabc | 711 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 | 712 | #endif /* USE_LOCALE_CTYPE */ |
713 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 714 | if (! curcoll) |
5f05dabc | 715 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 | 716 | #endif /* USE_LOCALE_COLLATE */ |
717 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 718 | if (! curnum) |
5f05dabc | 719 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 | 720 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 721 | PerlIO_printf(PerlIO_stderr(), "\n"); |
722 | ||
5f05dabc | 723 | #endif /* LC_ALL */ |
724 | ||
760ac839 | 725 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 726 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 JH |
727 | |
728 | PerlIO_printf(PerlIO_stderr(), | |
bbce6d69 | 729 | "\tLC_ALL = %c%s%c,\n", |
730 | lc_all ? '"' : '(', | |
731 | lc_all ? lc_all : "unset", | |
732 | lc_all ? '"' : ')'); | |
5f05dabc | 733 | |
734 | { | |
735 | char **e; | |
736 | for (e = environ; *e; e++) { | |
737 | if (strnEQ(*e, "LC_", 3) | |
738 | && strnNE(*e, "LC_ALL=", 7) | |
739 | && (p = strchr(*e, '='))) | |
740 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", | |
fb73857a | 741 | (int)(p - *e), *e, p + 1); |
5f05dabc | 742 | } |
743 | } | |
744 | ||
ef7eada9 | 745 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 746 | "\tLANG = %c%s%c\n", |
5f05dabc | 747 | lang ? '"' : '(', |
bbce6d69 | 748 | lang ? lang : "unset", |
749 | lang ? '"' : ')'); | |
ef7eada9 | 750 | |
bbce6d69 | 751 | PerlIO_printf(PerlIO_stderr(), |
752 | " are supported and installed on your system.\n"); | |
5f05dabc | 753 | } |
ef7eada9 | 754 | |
5f05dabc | 755 | #ifdef LC_ALL |
756 | ||
757 | if (setlocale(LC_ALL, "C")) { | |
758 | if (locwarn) | |
759 | PerlIO_printf(PerlIO_stderr(), | |
760 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
bbce6d69 | 761 | ok = 0; |
ef7eada9 | 762 | } |
5f05dabc | 763 | else { |
764 | if (locwarn) | |
765 | PerlIO_printf(PerlIO_stderr(), | |
766 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
767 | ok = -1; | |
768 | } | |
bbce6d69 | 769 | |
5f05dabc | 770 | #else /* ! LC_ALL */ |
771 | ||
772 | if (0 | |
36477c24 | 773 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 774 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 | 775 | #endif /* USE_LOCALE_CTYPE */ |
776 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 777 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 | 778 | #endif /* USE_LOCALE_COLLATE */ |
779 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 780 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 | 781 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 782 | ) |
783 | { | |
784 | if (locwarn) | |
bbce6d69 | 785 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc | 786 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
787 | ok = -1; | |
bbce6d69 | 788 | } |
5f05dabc | 789 | |
bbce6d69 | 790 | #endif /* ! LC_ALL */ |
5f05dabc | 791 | |
792 | #ifdef USE_LOCALE_CTYPE | |
793 | curctype = setlocale(LC_CTYPE, Nullch); | |
794 | #endif /* USE_LOCALE_CTYPE */ | |
795 | #ifdef USE_LOCALE_COLLATE | |
796 | curcoll = setlocale(LC_COLLATE, Nullch); | |
797 | #endif /* USE_LOCALE_COLLATE */ | |
798 | #ifdef USE_LOCALE_NUMERIC | |
799 | curnum = setlocale(LC_NUMERIC, Nullch); | |
800 | #endif /* USE_LOCALE_NUMERIC */ | |
ef7eada9 JH |
801 | } |
802 | ||
36477c24 | 803 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 804 | perl_new_ctype(curctype); |
36477c24 | 805 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 | 806 | |
36477c24 | 807 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 | 808 | perl_new_collate(curcoll); |
36477c24 | 809 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 810 | |
36477c24 | 811 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 | 812 | perl_new_numeric(curnum); |
36477c24 | 813 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 | 814 | |
36477c24 | 815 | #endif /* USE_LOCALE */ |
ef7eada9 | 816 | |
f0c5b223 TB |
817 | return ok; |
818 | } | |
819 | ||
bbce6d69 | 820 | /* Backwards compatibility. */ |
821 | int | |
8ac85365 | 822 | perl_init_i18nl14n(int printwarn) |
bbce6d69 | 823 | { |
5f05dabc | 824 | return perl_init_i18nl10n(printwarn); |
bbce6d69 | 825 | } |
ef7eada9 | 826 | |
36477c24 | 827 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 | 828 | |
bbce6d69 | 829 | /* |
830 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
831 | * differences. First, it handles embedded NULs. Second, it allocates | |
832 | * a bit more memory than needed for the transformed data itself. | |
833 | * The real transformed data begins at offset sizeof(collationix). | |
834 | * Please see sv_collxfrm() to see how this is used. | |
835 | */ | |
836 | char * | |
8ac85365 | 837 | mem_collxfrm(const char *s, STRLEN len, STRLEN *xlen) |
bbce6d69 | 838 | { |
839 | char *xbuf; | |
76e3520e | 840 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ |
bbce6d69 | 841 | |
842 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ | |
843 | /* the +1 is for the terminating NUL. */ | |
844 | ||
3280af22 | 845 | xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; |
76e3520e | 846 | New(171, xbuf, xAlloc, char); |
bbce6d69 | 847 | if (! xbuf) |
848 | goto bad; | |
849 | ||
3280af22 NIS |
850 | *(U32*)xbuf = PL_collation_ix; |
851 | xout = sizeof(PL_collation_ix); | |
bbce6d69 | 852 | for (xin = 0; xin < len; ) { |
853 | SSize_t xused; | |
854 | ||
855 | for (;;) { | |
76e3520e | 856 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); |
bbce6d69 | 857 | if (xused == -1) |
858 | goto bad; | |
76e3520e | 859 | if (xused < xAlloc - xout) |
bbce6d69 | 860 | break; |
76e3520e GS |
861 | xAlloc = (2 * xAlloc) + 1; |
862 | Renew(xbuf, xAlloc, char); | |
bbce6d69 | 863 | if (! xbuf) |
864 | goto bad; | |
865 | } | |
ef7eada9 | 866 | |
bbce6d69 | 867 | xin += strlen(s + xin) + 1; |
868 | xout += xused; | |
869 | ||
870 | /* Embedded NULs are understood but silently skipped | |
871 | * because they make no sense in locale collation. */ | |
872 | } | |
ef7eada9 | 873 | |
bbce6d69 | 874 | xbuf[xout] = '\0'; |
3280af22 | 875 | *xlen = xout - sizeof(PL_collation_ix); |
bbce6d69 | 876 | return xbuf; |
877 | ||
878 | bad: | |
879 | Safefree(xbuf); | |
880 | *xlen = 0; | |
881 | return NULL; | |
ef7eada9 JH |
882 | } |
883 | ||
36477c24 | 884 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 885 | |
378cc40b | 886 | void |
2779dcf1 | 887 | fbm_compile(SV *sv, U32 flags /* not used yet */) |
378cc40b | 888 | { |
942e002e GS |
889 | register U8 *s; |
890 | register U8 *table; | |
79072805 | 891 | register U32 i; |
0b71040e | 892 | STRLEN len; |
79072805 LW |
893 | I32 rarest = 0; |
894 | U32 frequency = 256; | |
895 | ||
942e002e | 896 | s = (U8*)SvPV_force(sv, len); |
07f14f54 | 897 | (void)SvUPGRADE(sv, SVt_PVBM); |
c277df42 | 898 | if (len > 255 || len == 0) /* TAIL might be on on a zero-length string. */ |
748a9306 | 899 | return; /* can't have offsets that big */ |
02128f11 IZ |
900 | if (len > 2) { |
901 | Sv_Grow(sv,len + 258); | |
902 | table = (unsigned char*)(SvPVX(sv) + len + 1); | |
903 | s = table - 2; | |
904 | for (i = 0; i < 256; i++) { | |
905 | table[i] = len; | |
906 | } | |
907 | i = 0; | |
908 | while (s >= (unsigned char*)(SvPVX(sv))) | |
909 | { | |
910 | if (table[*s] == len) | |
911 | table[*s] = i; | |
912 | s--,i++; | |
913 | } | |
378cc40b | 914 | } |
bbce6d69 | 915 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 | 916 | SvVALID_on(sv); |
378cc40b | 917 | |
463ee0b2 | 918 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 | 919 | for (i = 0; i < len; i++) { |
22c35a8c | 920 | if (PL_freq[s[i]] < frequency) { |
bbce6d69 | 921 | rarest = i; |
22c35a8c | 922 | frequency = PL_freq[s[i]]; |
378cc40b LW |
923 | } |
924 | } | |
79072805 LW |
925 | BmRARE(sv) = s[rarest]; |
926 | BmPREVIOUS(sv) = rarest; | |
760ac839 | 927 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b LW |
928 | } |
929 | ||
378cc40b | 930 | char * |
411d5715 | 931 | fbm_instr(unsigned char *big, register unsigned char *bigend, SV *littlestr, U32 flags) |
378cc40b | 932 | { |
a687059c | 933 | register unsigned char *s; |
79072805 LW |
934 | register I32 tmp; |
935 | register I32 littlelen; | |
a687059c LW |
936 | register unsigned char *little; |
937 | register unsigned char *table; | |
938 | register unsigned char *olds; | |
939 | register unsigned char *oldlittle; | |
378cc40b | 940 | |
79072805 | 941 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e LW |
942 | STRLEN len; |
943 | char *l = SvPV(littlestr,len); | |
c277df42 | 944 | if (!len) { |
02128f11 IZ |
945 | if (SvTAIL(littlestr)) { /* Can be only 0-len constant |
946 | substr => we can ignore SvVALID */ | |
3280af22 | 947 | if (PL_multiline) { |
02128f11 | 948 | char *t = "\n"; |
3fe6f2dc MB |
949 | if ((s = (unsigned char*)ninstr((char*)big, (char*)bigend, |
950 | t, t + len))) { | |
951 | return (char*)s; | |
952 | } | |
02128f11 | 953 | } |
c277df42 | 954 | if (bigend > big && bigend[-1] == '\n') |
161b471a | 955 | return (char *)(bigend - 1); |
c277df42 | 956 | else |
161b471a | 957 | return (char *) bigend; |
c277df42 | 958 | } |
d48672a2 | 959 | return (char*)big; |
c277df42 | 960 | } |
a0d0e21e | 961 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 | 962 | } |
378cc40b | 963 | |
79072805 | 964 | littlelen = SvCUR(littlestr); |
3280af22 | 965 | if (SvTAIL(littlestr) && !PL_multiline) { /* tail anchored? */ |
0f85fab0 LW |
966 | if (littlelen > bigend - big) |
967 | return Nullch; | |
463ee0b2 | 968 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 | 969 | s = bigend - littlelen; |
02128f11 IZ |
970 | if (s > big |
971 | && bigend[-1] == '\n' | |
972 | && s[-1] == *little && memEQ((char*)s - 1,(char*)little,littlelen)) | |
973 | return (char*)s - 1; /* how sweet it is */ | |
974 | else if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) | |
bbce6d69 | 975 | return (char*)s; /* how sweet it is */ |
02128f11 IZ |
976 | return Nullch; |
977 | } | |
978 | if (littlelen <= 2) { | |
979 | unsigned char c1 = (unsigned char)SvPVX(littlestr)[0]; | |
980 | unsigned char c2 = (unsigned char)SvPVX(littlestr)[1]; | |
981 | /* This may do extra comparisons if littlelen == 2, but this | |
982 | should be hidden in the noise since we do less indirection. */ | |
983 | ||
984 | s = big; | |
985 | bigend -= littlelen; | |
986 | while (s <= bigend) { | |
987 | if (s[0] == c1 | |
988 | && (littlelen == 1 || s[1] == c2) | |
989 | && (!SvTAIL(littlestr) | |
990 | || s == bigend | |
991 | || s[littlelen] == '\n')) /* Automatically multiline */ | |
3fe6f2dc MB |
992 | { |
993 | return (char*)s; | |
994 | } | |
02128f11 | 995 | s++; |
a687059c | 996 | } |
bbce6d69 | 997 | return Nullch; |
a687059c | 998 | } |
463ee0b2 | 999 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 LW |
1000 | if (--littlelen >= bigend - big) |
1001 | return Nullch; | |
1002 | s = big + littlelen; | |
a687059c | 1003 | oldlittle = little = table - 2; |
bbce6d69 | 1004 | if (s < bigend) { |
1005 | top2: | |
1006 | /*SUPPRESS 560*/ | |
1007 | if (tmp = table[*s]) { | |
62b28dd9 | 1008 | #ifdef POINTERRIGOR |
bbce6d69 | 1009 | if (bigend - s > tmp) { |
1010 | s += tmp; | |
1011 | goto top2; | |
1012 | } | |
62b28dd9 | 1013 | #else |
bbce6d69 | 1014 | if ((s += tmp) < bigend) |
1015 | goto top2; | |
62b28dd9 | 1016 | #endif |
bbce6d69 | 1017 | return Nullch; |
a687059c | 1018 | } |
bbce6d69 | 1019 | else { |
1020 | tmp = littlelen; /* less expensive than calling strncmp() */ | |
1021 | olds = s; | |
1022 | while (tmp--) { | |
1023 | if (*--s == *--little) | |
1024 | continue; | |
c277df42 | 1025 | differ: |
bbce6d69 | 1026 | s = olds + 1; /* here we pay the price for failure */ |
1027 | little = oldlittle; | |
1028 | if (s < bigend) /* fake up continue to outer loop */ | |
62b28dd9 | 1029 | goto top2; |
62b28dd9 | 1030 | return Nullch; |
a687059c | 1031 | } |
c277df42 IZ |
1032 | if (SvTAIL(littlestr) /* automatically multiline */ |
1033 | && olds + 1 != bigend | |
1034 | && olds[1] != '\n') | |
1035 | goto differ; | |
bbce6d69 | 1036 | return (char *)s; |
378cc40b LW |
1037 | } |
1038 | } | |
1039 | return Nullch; | |
1040 | } | |
1041 | ||
c277df42 IZ |
1042 | /* start_shift, end_shift are positive quantities which give offsets |
1043 | of ends of some substring of bigstr. | |
1044 | If `last' we want the last occurence. | |
1045 | old_posp is the way of communication between consequent calls if | |
1046 | the next call needs to find the . | |
1047 | The initial *old_posp should be -1. | |
1048 | Note that we do not take into account SvTAIL, so it may give wrong | |
1049 | positives if _ALL flag is set. | |
1050 | */ | |
1051 | ||
378cc40b | 1052 | char * |
c277df42 | 1053 | screaminstr(SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last) |
378cc40b | 1054 | { |
5c0ca799 | 1055 | dTHR; |
a687059c LW |
1056 | register unsigned char *s, *x; |
1057 | register unsigned char *big; | |
79072805 LW |
1058 | register I32 pos; |
1059 | register I32 previous; | |
1060 | register I32 first; | |
a687059c | 1061 | register unsigned char *little; |
c277df42 | 1062 | register I32 stop_pos; |
a687059c | 1063 | register unsigned char *littleend; |
c277df42 | 1064 | I32 found = 0; |
378cc40b | 1065 | |
c277df42 | 1066 | if (*old_posp == -1 |
3280af22 NIS |
1067 | ? (pos = PL_screamfirst[BmRARE(littlestr)]) < 0 |
1068 | : (((pos = *old_posp), pos += PL_screamnext[pos]) == 0)) | |
378cc40b | 1069 | return Nullch; |
463ee0b2 | 1070 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 | 1071 | littleend = little + SvCUR(littlestr); |
378cc40b | 1072 | first = *little++; |
c277df42 | 1073 | /* The value of pos we can start at: */ |
79072805 | 1074 | previous = BmPREVIOUS(littlestr); |
463ee0b2 | 1075 | big = (unsigned char *)(SvPVX(bigstr)); |
c277df42 IZ |
1076 | /* The value of pos we can stop at: */ |
1077 | stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous); | |
1078 | if (previous + start_shift > stop_pos) return Nullch; | |
1079 | while (pos < previous + start_shift) { | |
3280af22 | 1080 | if (!(pos += PL_screamnext[pos])) |
378cc40b LW |
1081 | return Nullch; |
1082 | } | |
de3bb511 | 1083 | #ifdef POINTERRIGOR |
bbce6d69 | 1084 | do { |
ef64f398 | 1085 | if (pos >= stop_pos) break; |
bbce6d69 | 1086 | if (big[pos-previous] != first) |
1087 | continue; | |
1088 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { | |
bbce6d69 | 1089 | if (*s++ != *x++) { |
1090 | s--; | |
1091 | break; | |
de3bb511 | 1092 | } |
bbce6d69 | 1093 | } |
c277df42 IZ |
1094 | if (s == littleend) { |
1095 | *old_posp = pos; | |
1096 | if (!last) return (char *)(big+pos-previous); | |
1097 | found = 1; | |
1098 | } | |
6b88bc9c | 1099 | } while ( pos += PL_screamnext[pos] ); |
c277df42 | 1100 | return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch; |
de3bb511 LW |
1101 | #else /* !POINTERRIGOR */ |
1102 | big -= previous; | |
bbce6d69 | 1103 | do { |
ef64f398 | 1104 | if (pos >= stop_pos) break; |
bbce6d69 | 1105 | if (big[pos] != first) |
1106 | continue; | |
1107 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { | |
bbce6d69 | 1108 | if (*s++ != *x++) { |
1109 | s--; | |
1110 | break; | |
378cc40b | 1111 | } |
bbce6d69 | 1112 | } |
c277df42 IZ |
1113 | if (s == littleend) { |
1114 | *old_posp = pos; | |
1115 | if (!last) return (char *)(big+pos); | |
1116 | found = 1; | |
1117 | } | |
3280af22 | 1118 | } while ( pos += PL_screamnext[pos] ); |
c277df42 | 1119 | return (last && found) ? (char *)(big+(*old_posp)) : Nullch; |
de3bb511 | 1120 | #endif /* POINTERRIGOR */ |
8d063cd8 LW |
1121 | } |
1122 | ||
79072805 | 1123 | I32 |
8ac85365 | 1124 | ibcmp(char *s1, char *s2, register I32 len) |
79072805 | 1125 | { |
bbce6d69 | 1126 | register U8 *a = (U8 *)s1; |
1127 | register U8 *b = (U8 *)s2; | |
79072805 | 1128 | while (len--) { |
22c35a8c | 1129 | if (*a != *b && *a != PL_fold[*b]) |
bbce6d69 | 1130 | return 1; |
1131 | a++,b++; | |
1132 | } | |
1133 | return 0; | |
1134 | } | |
1135 | ||
1136 | I32 | |
8ac85365 | 1137 | ibcmp_locale(char *s1, char *s2, register I32 len) |
bbce6d69 | 1138 | { |
1139 | register U8 *a = (U8 *)s1; | |
1140 | register U8 *b = (U8 *)s2; | |
1141 | while (len--) { | |
22c35a8c | 1142 | if (*a != *b && *a != PL_fold_locale[*b]) |
bbce6d69 | 1143 | return 1; |
1144 | a++,b++; | |
79072805 LW |
1145 | } |
1146 | return 0; | |
1147 | } | |
1148 | ||
8d063cd8 LW |
1149 | /* copy a string to a safe spot */ |
1150 | ||
1151 | char * | |
8ac85365 | 1152 | savepv(char *sv) |
8d063cd8 | 1153 | { |
a687059c | 1154 | register char *newaddr; |
8d063cd8 | 1155 | |
79072805 LW |
1156 | New(902,newaddr,strlen(sv)+1,char); |
1157 | (void)strcpy(newaddr,sv); | |
8d063cd8 LW |
1158 | return newaddr; |
1159 | } | |
1160 | ||
a687059c LW |
1161 | /* same thing but with a known length */ |
1162 | ||
1163 | char * | |
8ac85365 | 1164 | savepvn(char *sv, register I32 len) |
a687059c LW |
1165 | { |
1166 | register char *newaddr; | |
1167 | ||
1168 | New(903,newaddr,len+1,char); | |
79072805 | 1169 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c LW |
1170 | newaddr[len] = '\0'; /* is now */ |
1171 | return newaddr; | |
1172 | } | |
1173 | ||
fc36a67e | 1174 | /* the SV for form() and mess() is not kept in an arena */ |
1175 | ||
76e3520e | 1176 | STATIC SV * |
8ac85365 | 1177 | mess_alloc(void) |
fc36a67e | 1178 | { |
e72dc28c | 1179 | dTHR; |
fc36a67e | 1180 | SV *sv; |
1181 | XPVMG *any; | |
1182 | ||
e72dc28c GS |
1183 | if (!PL_dirty) |
1184 | return sv_2mortal(newSVpvn("",0)); | |
1185 | ||
0372dbb6 GS |
1186 | if (PL_mess_sv) |
1187 | return PL_mess_sv; | |
1188 | ||
fc36a67e | 1189 | /* Create as PVMG now, to avoid any upgrading later */ |
1190 | New(905, sv, 1, SV); | |
1191 | Newz(905, any, 1, XPVMG); | |
1192 | SvFLAGS(sv) = SVt_PVMG; | |
1193 | SvANY(sv) = (void*)any; | |
1194 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ | |
e72dc28c | 1195 | PL_mess_sv = sv; |
fc36a67e | 1196 | return sv; |
1197 | } | |
1198 | ||
8990e307 | 1199 | char * |
46fc3d4c | 1200 | form(const char* pat, ...) |
8990e307 | 1201 | { |
e72dc28c | 1202 | SV *sv = mess_alloc(); |
46fc3d4c | 1203 | va_list args; |
46fc3d4c | 1204 | va_start(args, pat); |
e72dc28c | 1205 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 1206 | va_end(args); |
e72dc28c | 1207 | return SvPVX(sv); |
46fc3d4c | 1208 | } |
a687059c | 1209 | |
46fc3d4c | 1210 | char * |
8ac85365 | 1211 | mess(const char *pat, va_list *args) |
46fc3d4c | 1212 | { |
e72dc28c | 1213 | SV *sv = mess_alloc(); |
46fc3d4c | 1214 | static char dgd[] = " during global destruction.\n"; |
1215 | ||
fc36a67e | 1216 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 1217 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
e858de61 | 1218 | dTHR; |
3280af22 | 1219 | if (PL_dirty) |
46fc3d4c | 1220 | sv_catpv(sv, dgd); |
2304df62 | 1221 | else { |
3280af22 | 1222 | if (PL_curcop->cop_line) |
fc36a67e | 1223 | sv_catpvf(sv, " at %_ line %ld", |
3280af22 NIS |
1224 | GvSV(PL_curcop->cop_filegv), (long)PL_curcop->cop_line); |
1225 | if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) { | |
1226 | bool line_mode = (RsSIMPLE(PL_rs) && | |
1227 | SvLEN(PL_rs) == 1 && *SvPVX(PL_rs) == '\n'); | |
46fc3d4c | 1228 | sv_catpvf(sv, ", <%s> %s %ld", |
3280af22 | 1229 | PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv), |
46fc3d4c | 1230 | line_mode ? "line" : "chunk", |
3280af22 | 1231 | (long)IoLINES(GvIOp(PL_last_in_gv))); |
2304df62 | 1232 | } |
46fc3d4c | 1233 | sv_catpv(sv, ".\n"); |
a687059c | 1234 | } |
a687059c | 1235 | } |
46fc3d4c | 1236 | return SvPVX(sv); |
a687059c LW |
1237 | } |
1238 | ||
36477c24 | 1239 | OP * |
71be2cbc | 1240 | die(const char* pat, ...) |
36477c24 | 1241 | { |
5dc0d613 | 1242 | dTHR; |
36477c24 | 1243 | va_list args; |
1244 | char *message; | |
3280af22 | 1245 | int was_in_eval = PL_in_eval; |
36477c24 | 1246 | HV *stash; |
1247 | GV *gv; | |
1248 | CV *cv; | |
1249 | ||
8b73bbec | 1250 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
199100c8 | 1251 | "%p: die: curstack = %p, mainstack = %p\n", |
533c011a | 1252 | thr, PL_curstack, PL_mainstack)); |
36477c24 | 1253 | |
36477c24 | 1254 | va_start(args, pat); |
4e6ea2c3 | 1255 | message = pat ? mess(pat, &args) : Nullch; |
36477c24 | 1256 | va_end(args); |
1257 | ||
8b73bbec | 1258 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
199100c8 | 1259 | "%p: die: message = %s\ndiehook = %p\n", |
533c011a | 1260 | thr, message, PL_diehook)); |
3280af22 | 1261 | if (PL_diehook) { |
1738f5c4 | 1262 | /* sv_2cv might call croak() */ |
3280af22 | 1263 | SV *olddiehook = PL_diehook; |
1738f5c4 | 1264 | ENTER; |
3280af22 NIS |
1265 | SAVESPTR(PL_diehook); |
1266 | PL_diehook = Nullsv; | |
1738f5c4 CS |
1267 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1268 | LEAVE; | |
1269 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1270 | dSP; | |
774d564b | 1271 | SV *msg; |
1272 | ||
1273 | ENTER; | |
4e6ea2c3 GS |
1274 | if(message) { |
1275 | msg = newSVpv(message, 0); | |
1276 | SvREADONLY_on(msg); | |
1277 | SAVEFREESV(msg); | |
1278 | } | |
1279 | else { | |
1280 | msg = ERRSV; | |
1281 | } | |
1738f5c4 | 1282 | |
e788e7d3 | 1283 | PUSHSTACKi(PERLSI_DIEHOOK); |
924508f0 | 1284 | PUSHMARK(SP); |
1738f5c4 CS |
1285 | XPUSHs(msg); |
1286 | PUTBACK; | |
1287 | perl_call_sv((SV*)cv, G_DISCARD); | |
d3acc0f7 | 1288 | POPSTACK; |
774d564b | 1289 | LEAVE; |
1738f5c4 | 1290 | } |
36477c24 | 1291 | } |
1292 | ||
3280af22 | 1293 | PL_restartop = die_where(message); |
8b73bbec | 1294 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
7c06b590 | 1295 | "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n", |
533c011a | 1296 | thr, PL_restartop, was_in_eval, PL_top_env)); |
3280af22 | 1297 | if ((!PL_restartop && was_in_eval) || PL_top_env->je_prev) |
6224f72b | 1298 | JMPENV_JUMP(3); |
3280af22 | 1299 | return PL_restartop; |
36477c24 | 1300 | } |
1301 | ||
79072805 | 1302 | void |
71be2cbc | 1303 | croak(const char* pat, ...) |
a687059c | 1304 | { |
11343788 | 1305 | dTHR; |
a687059c | 1306 | va_list args; |
de3bb511 | 1307 | char *message; |
748a9306 LW |
1308 | HV *stash; |
1309 | GV *gv; | |
1310 | CV *cv; | |
a687059c | 1311 | |
8990e307 | 1312 | va_start(args, pat); |
2304df62 | 1313 | message = mess(pat, &args); |
a687059c | 1314 | va_end(args); |
8b73bbec | 1315 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
3280af22 | 1316 | if (PL_diehook) { |
1738f5c4 | 1317 | /* sv_2cv might call croak() */ |
3280af22 | 1318 | SV *olddiehook = PL_diehook; |
1738f5c4 | 1319 | ENTER; |
3280af22 NIS |
1320 | SAVESPTR(PL_diehook); |
1321 | PL_diehook = Nullsv; | |
20cec16a | 1322 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 CS |
1323 | LEAVE; |
1324 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1325 | dSP; |
774d564b | 1326 | SV *msg; |
1327 | ||
1328 | ENTER; | |
1329 | msg = newSVpv(message, 0); | |
1330 | SvREADONLY_on(msg); | |
1331 | SAVEFREESV(msg); | |
20cec16a | 1332 | |
e788e7d3 | 1333 | PUSHSTACKi(PERLSI_DIEHOOK); |
924508f0 | 1334 | PUSHMARK(SP); |
1738f5c4 | 1335 | XPUSHs(msg); |
20cec16a | 1336 | PUTBACK; |
1337 | perl_call_sv((SV*)cv, G_DISCARD); | |
d3acc0f7 | 1338 | POPSTACK; |
774d564b | 1339 | LEAVE; |
20cec16a | 1340 | } |
748a9306 | 1341 | } |
3280af22 NIS |
1342 | if (PL_in_eval) { |
1343 | PL_restartop = die_where(message); | |
6224f72b | 1344 | JMPENV_JUMP(3); |
a0d0e21e | 1345 | } |
760ac839 LW |
1346 | PerlIO_puts(PerlIO_stderr(),message); |
1347 | (void)PerlIO_flush(PerlIO_stderr()); | |
f86702cc | 1348 | my_failure_exit(); |
a687059c LW |
1349 | } |
1350 | ||
8990e307 | 1351 | void |
71be2cbc | 1352 | warn(const char* pat,...) |
a687059c LW |
1353 | { |
1354 | va_list args; | |
de3bb511 | 1355 | char *message; |
748a9306 LW |
1356 | HV *stash; |
1357 | GV *gv; | |
1358 | CV *cv; | |
a687059c | 1359 | |
8990e307 | 1360 | va_start(args, pat); |
2304df62 | 1361 | message = mess(pat, &args); |
a687059c LW |
1362 | va_end(args); |
1363 | ||
3280af22 | 1364 | if (PL_warnhook) { |
1738f5c4 | 1365 | /* sv_2cv might call warn() */ |
11343788 | 1366 | dTHR; |
3280af22 | 1367 | SV *oldwarnhook = PL_warnhook; |
1738f5c4 | 1368 | ENTER; |
3280af22 NIS |
1369 | SAVESPTR(PL_warnhook); |
1370 | PL_warnhook = Nullsv; | |
20cec16a | 1371 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 CS |
1372 | LEAVE; |
1373 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1374 | dSP; |
774d564b | 1375 | SV *msg; |
1376 | ||
1377 | ENTER; | |
1378 | msg = newSVpv(message, 0); | |
1379 | SvREADONLY_on(msg); | |
1380 | SAVEFREESV(msg); | |
1381 | ||
e788e7d3 | 1382 | PUSHSTACKi(PERLSI_WARNHOOK); |
924508f0 | 1383 | PUSHMARK(SP); |
774d564b | 1384 | XPUSHs(msg); |
20cec16a | 1385 | PUTBACK; |
1386 | perl_call_sv((SV*)cv, G_DISCARD); | |
d3acc0f7 | 1387 | POPSTACK; |
774d564b | 1388 | LEAVE; |
20cec16a | 1389 | return; |
1390 | } | |
748a9306 | 1391 | } |
20cec16a | 1392 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c | 1393 | #ifdef LEAKTEST |
8c52afec IZ |
1394 | DEBUG_L(*message == '!' |
1395 | ? (xstat(message[1]=='!' | |
1396 | ? (message[2]=='!' ? 2 : 1) | |
1397 | : 0) | |
1398 | , 0) | |
1399 | : 0); | |
a687059c | 1400 | #endif |
20cec16a | 1401 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c | 1402 | } |
8d063cd8 | 1403 | |
599cee73 PM |
1404 | void |
1405 | warner(U32 err, const char* pat,...) | |
1406 | { | |
d008e5eb | 1407 | dTHR; |
599cee73 PM |
1408 | va_list args; |
1409 | char *message; | |
1410 | HV *stash; | |
1411 | GV *gv; | |
1412 | CV *cv; | |
1413 | ||
1414 | va_start(args, pat); | |
1415 | message = mess(pat, &args); | |
1416 | va_end(args); | |
1417 | ||
1418 | if (ckDEAD(err)) { | |
1419 | #ifdef USE_THREADS | |
d008e5eb | 1420 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
599cee73 PM |
1421 | #endif /* USE_THREADS */ |
1422 | if (PL_diehook) { | |
1423 | /* sv_2cv might call croak() */ | |
1424 | SV *olddiehook = PL_diehook; | |
1425 | ENTER; | |
1426 | SAVESPTR(PL_diehook); | |
1427 | PL_diehook = Nullsv; | |
1428 | cv = sv_2cv(olddiehook, &stash, &gv, 0); | |
1429 | LEAVE; | |
1430 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1431 | dSP; | |
1432 | SV *msg; | |
1433 | ||
1434 | ENTER; | |
1435 | msg = newSVpv(message, 0); | |
1436 | SvREADONLY_on(msg); | |
1437 | SAVEFREESV(msg); | |
1438 | ||
1439 | PUSHMARK(sp); | |
1440 | XPUSHs(msg); | |
1441 | PUTBACK; | |
1442 | perl_call_sv((SV*)cv, G_DISCARD); | |
1443 | ||
1444 | LEAVE; | |
1445 | } | |
1446 | } | |
1447 | if (PL_in_eval) { | |
1448 | PL_restartop = die_where(message); | |
1449 | JMPENV_JUMP(3); | |
1450 | } | |
1451 | PerlIO_puts(PerlIO_stderr(),message); | |
1452 | (void)PerlIO_flush(PerlIO_stderr()); | |
1453 | my_failure_exit(); | |
1454 | ||
1455 | } | |
1456 | else { | |
1457 | if (PL_warnhook) { | |
1458 | /* sv_2cv might call warn() */ | |
1459 | dTHR; | |
1460 | SV *oldwarnhook = PL_warnhook; | |
1461 | ENTER; | |
1462 | SAVESPTR(PL_warnhook); | |
1463 | PL_warnhook = Nullsv; | |
1464 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); | |
1465 | LEAVE; | |
1466 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1467 | dSP; | |
1468 | SV *msg; | |
1469 | ||
1470 | ENTER; | |
1471 | msg = newSVpv(message, 0); | |
1472 | SvREADONLY_on(msg); | |
1473 | SAVEFREESV(msg); | |
1474 | ||
1475 | PUSHMARK(sp); | |
1476 | XPUSHs(msg); | |
1477 | PUTBACK; | |
1478 | perl_call_sv((SV*)cv, G_DISCARD); | |
1479 | ||
1480 | LEAVE; | |
1481 | return; | |
1482 | } | |
1483 | } | |
1484 | PerlIO_puts(PerlIO_stderr(),message); | |
1485 | #ifdef LEAKTEST | |
1486 | DEBUG_L(xstat()); | |
1487 | #endif | |
1488 | (void)PerlIO_flush(PerlIO_stderr()); | |
1489 | } | |
1490 | } | |
1491 | ||
a0d0e21e | 1492 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
3e3baf6d | 1493 | #ifndef WIN32 |
8d063cd8 | 1494 | void |
8ac85365 | 1495 | my_setenv(char *nam, char *val) |
8d063cd8 | 1496 | { |
79072805 | 1497 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 | 1498 | |
3280af22 | 1499 | if (environ == PL_origenviron) { /* need we copy environment? */ |
79072805 LW |
1500 | I32 j; |
1501 | I32 max; | |
fe14fcc3 LW |
1502 | char **tmpenv; |
1503 | ||
de3bb511 | 1504 | /*SUPPRESS 530*/ |
fe14fcc3 LW |
1505 | for (max = i; environ[max]; max++) ; |
1506 | New(901,tmpenv, max+2, char*); | |
1507 | for (j=0; j<max; j++) /* copy environment */ | |
a0d0e21e | 1508 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 LW |
1509 | tmpenv[max] = Nullch; |
1510 | environ = tmpenv; /* tell exec where it is now */ | |
1511 | } | |
a687059c | 1512 | if (!val) { |
e5ebf479 | 1513 | Safefree(environ[i]); |
a687059c LW |
1514 | while (environ[i]) { |
1515 | environ[i] = environ[i+1]; | |
1516 | i++; | |
1517 | } | |
1518 | return; | |
1519 | } | |
8d063cd8 | 1520 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 | 1521 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 LW |
1522 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1523 | } | |
fe14fcc3 LW |
1524 | else |
1525 | Safefree(environ[i]); | |
a687059c | 1526 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 | 1527 | #ifndef MSDOS |
a687059c | 1528 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 LW |
1529 | #else |
1530 | /* MS-DOS requires environment variable names to be in uppercase */ | |
fe14fcc3 LW |
1531 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1532 | * some utilities and applications may break because they only look | |
1533 | * for upper case strings. (Fixed strupr() bug here.)] | |
1534 | */ | |
1535 | strcpy(environ[i],nam); strupr(environ[i]); | |
62b28dd9 LW |
1536 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1537 | #endif /* MSDOS */ | |
8d063cd8 LW |
1538 | } |
1539 | ||
3e3baf6d | 1540 | #else /* if WIN32 */ |
68dc0745 | 1541 | |
1542 | void | |
4e35701f | 1543 | my_setenv(char *nam,char *val) |
68dc0745 | 1544 | { |
3e3baf6d TB |
1545 | |
1546 | #ifdef USE_WIN32_RTL_ENV | |
1547 | ||
68dc0745 | 1548 | register char *envstr; |
1549 | STRLEN namlen = strlen(nam); | |
3e3baf6d TB |
1550 | STRLEN vallen; |
1551 | char *oldstr = environ[setenv_getix(nam)]; | |
1552 | ||
1553 | /* putenv() has totally broken semantics in both the Borland | |
1554 | * and Microsoft CRTLs. They either store the passed pointer in | |
1555 | * the environment without making a copy, or make a copy and don't | |
1556 | * free it. And on top of that, they dont free() old entries that | |
1557 | * are being replaced/deleted. This means the caller must | |
1558 | * free any old entries somehow, or we end up with a memory | |
1559 | * leak every time my_setenv() is called. One might think | |
1560 | * one could directly manipulate environ[], like the UNIX code | |
1561 | * above, but direct changes to environ are not allowed when | |
1562 | * calling putenv(), since the RTLs maintain an internal | |
1563 | * *copy* of environ[]. Bad, bad, *bad* stink. | |
1564 | * GSAR 97-06-07 | |
1565 | */ | |
68dc0745 | 1566 | |
3e3baf6d TB |
1567 | if (!val) { |
1568 | if (!oldstr) | |
1569 | return; | |
1570 | val = ""; | |
1571 | vallen = 0; | |
1572 | } | |
1573 | else | |
1574 | vallen = strlen(val); | |
fc36a67e | 1575 | New(904, envstr, namlen + vallen + 3, char); |
68dc0745 | 1576 | (void)sprintf(envstr,"%s=%s",nam,val); |
76e3520e | 1577 | (void)PerlEnv_putenv(envstr); |
3e3baf6d TB |
1578 | if (oldstr) |
1579 | Safefree(oldstr); | |
1580 | #ifdef _MSC_VER | |
1581 | Safefree(envstr); /* MSVCRT leaks without this */ | |
1582 | #endif | |
1583 | ||
1584 | #else /* !USE_WIN32_RTL_ENV */ | |
1585 | ||
1586 | /* The sane way to deal with the environment. | |
1587 | * Has these advantages over putenv() & co.: | |
1588 | * * enables us to store a truly empty value in the | |
1589 | * environment (like in UNIX). | |
1590 | * * we don't have to deal with RTL globals, bugs and leaks. | |
1591 | * * Much faster. | |
1592 | * Why you may want to enable USE_WIN32_RTL_ENV: | |
1593 | * * environ[] and RTL functions will not reflect changes, | |
1594 | * which might be an issue if extensions want to access | |
1595 | * the env. via RTL. This cuts both ways, since RTL will | |
1596 | * not see changes made by extensions that call the Win32 | |
1597 | * functions directly, either. | |
1598 | * GSAR 97-06-07 | |
1599 | */ | |
1600 | SetEnvironmentVariable(nam,val); | |
1601 | ||
1602 | #endif | |
1603 | } | |
1604 | ||
1605 | #endif /* WIN32 */ | |
1606 | ||
1607 | I32 | |
8ac85365 | 1608 | setenv_getix(char *nam) |
3e3baf6d TB |
1609 | { |
1610 | register I32 i, len = strlen(nam); | |
1611 | ||
1612 | for (i = 0; environ[i]; i++) { | |
1613 | if ( | |
1614 | #ifdef WIN32 | |
1615 | strnicmp(environ[i],nam,len) == 0 | |
1616 | #else | |
1617 | strnEQ(environ[i],nam,len) | |
1618 | #endif | |
1619 | && environ[i][len] == '=') | |
1620 | break; /* strnEQ must come first to avoid */ | |
1621 | } /* potential SEGV's */ | |
1622 | return i; | |
68dc0745 | 1623 | } |
1624 | ||
a0d0e21e | 1625 | #endif /* !VMS */ |
378cc40b | 1626 | |
16d20bd9 | 1627 | #ifdef UNLINK_ALL_VERSIONS |
79072805 | 1628 | I32 |
378cc40b LW |
1629 | unlnk(f) /* unlink all versions of a file */ |
1630 | char *f; | |
1631 | { | |
79072805 | 1632 | I32 i; |
378cc40b | 1633 | |
6ad3d225 | 1634 | for (i = 0; PerlLIO_unlink(f) >= 0; i++) ; |
378cc40b LW |
1635 | return i ? 0 : -1; |
1636 | } | |
1637 | #endif | |
1638 | ||
85e6fe83 | 1639 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b | 1640 | char * |
4e35701f | 1641 | my_bcopy(register char *from,register char *to,register I32 len) |
378cc40b LW |
1642 | { |
1643 | char *retval = to; | |
1644 | ||
7c0587c8 LW |
1645 | if (from - to >= 0) { |
1646 | while (len--) | |
1647 | *to++ = *from++; | |
1648 | } | |
1649 | else { | |
1650 | to += len; | |
1651 | from += len; | |
1652 | while (len--) | |
faf8582f | 1653 | *(--to) = *(--from); |
7c0587c8 | 1654 | } |
378cc40b LW |
1655 | return retval; |
1656 | } | |
ffed7fef | 1657 | #endif |
378cc40b | 1658 | |
fc36a67e | 1659 | #ifndef HAS_MEMSET |
1660 | void * | |
1661 | my_memset(loc,ch,len) | |
1662 | register char *loc; | |
1663 | register I32 ch; | |
1664 | register I32 len; | |
1665 | { | |
1666 | char *retval = loc; | |
1667 | ||
1668 | while (len--) | |
1669 | *loc++ = ch; | |
1670 | return retval; | |
1671 | } | |
1672 | #endif | |
1673 | ||
7c0587c8 | 1674 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b | 1675 | char * |
7c0587c8 | 1676 | my_bzero(loc,len) |
378cc40b | 1677 | register char *loc; |
79072805 | 1678 | register I32 len; |
378cc40b LW |
1679 | { |
1680 | char *retval = loc; | |
1681 | ||
1682 | while (len--) | |
1683 | *loc++ = 0; | |
1684 | return retval; | |
1685 | } | |
1686 | #endif | |
7c0587c8 | 1687 | |
36477c24 | 1688 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 | 1689 | I32 |
7c0587c8 | 1690 | my_memcmp(s1,s2,len) |
36477c24 | 1691 | char *s1; |
1692 | char *s2; | |
79072805 | 1693 | register I32 len; |
7c0587c8 | 1694 | { |
36477c24 | 1695 | register U8 *a = (U8 *)s1; |
1696 | register U8 *b = (U8 *)s2; | |
79072805 | 1697 | register I32 tmp; |
7c0587c8 LW |
1698 | |
1699 | while (len--) { | |
36477c24 | 1700 | if (tmp = *a++ - *b++) |
7c0587c8 LW |
1701 | return tmp; |
1702 | } | |
1703 | return 0; | |
1704 | } | |
36477c24 | 1705 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c | 1706 | |
fe14fcc3 | 1707 | #ifndef HAS_VPRINTF |
a687059c | 1708 | |
85e6fe83 | 1709 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1710 | char * |
1711 | #else | |
1712 | int | |
1713 | #endif | |
1714 | vsprintf(dest, pat, args) | |
71be2cbc | 1715 | char *dest; |
1716 | const char *pat; | |
1717 | char *args; | |
a687059c LW |
1718 | { |
1719 | FILE fakebuf; | |
1720 | ||
1721 | fakebuf._ptr = dest; | |
1722 | fakebuf._cnt = 32767; | |
35c8bce7 LW |
1723 | #ifndef _IOSTRG |
1724 | #define _IOSTRG 0 | |
1725 | #endif | |
a687059c LW |
1726 | fakebuf._flag = _IOWRT|_IOSTRG; |
1727 | _doprnt(pat, args, &fakebuf); /* what a kludge */ | |
1728 | (void)putc('\0', &fakebuf); | |
85e6fe83 | 1729 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1730 | return(dest); |
1731 | #else | |
1732 | return 0; /* perl doesn't use return value */ | |
1733 | #endif | |
1734 | } | |
1735 | ||
fe14fcc3 | 1736 | #endif /* HAS_VPRINTF */ |
a687059c LW |
1737 | |
1738 | #ifdef MYSWAP | |
ffed7fef | 1739 | #if BYTEORDER != 0x4321 |
a687059c | 1740 | short |
748a9306 | 1741 | my_swap(short s) |
a687059c LW |
1742 | { |
1743 | #if (BYTEORDER & 1) == 0 | |
1744 | short result; | |
1745 | ||
1746 | result = ((s & 255) << 8) + ((s >> 8) & 255); | |
1747 | return result; | |
1748 | #else | |
1749 | return s; | |
1750 | #endif | |
1751 | } | |
1752 | ||
1753 | long | |
748a9306 | 1754 | my_htonl(long l) |
a687059c LW |
1755 | { |
1756 | union { | |
1757 | long result; | |
ffed7fef | 1758 | char c[sizeof(long)]; |
a687059c LW |
1759 | } u; |
1760 | ||
ffed7fef | 1761 | #if BYTEORDER == 0x1234 |
a687059c LW |
1762 | u.c[0] = (l >> 24) & 255; |
1763 | u.c[1] = (l >> 16) & 255; | |
1764 | u.c[2] = (l >> 8) & 255; | |
1765 | u.c[3] = l & 255; | |
1766 | return u.result; | |
1767 | #else | |
ffed7fef | 1768 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1769 | croak("Unknown BYTEORDER\n"); |
a687059c | 1770 | #else |
79072805 LW |
1771 | register I32 o; |
1772 | register I32 s; | |
a687059c | 1773 | |
ffed7fef LW |
1774 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1775 | u.c[o & 0xf] = (l >> s) & 255; | |
a687059c LW |
1776 | } |
1777 | return u.result; | |
1778 | #endif | |
1779 | #endif | |
1780 | } | |
1781 | ||
1782 | long | |
748a9306 | 1783 | my_ntohl(long l) |
a687059c LW |
1784 | { |
1785 | union { | |
1786 | long l; | |
ffed7fef | 1787 | char c[sizeof(long)]; |
a687059c LW |
1788 | } u; |
1789 | ||
ffed7fef | 1790 | #if BYTEORDER == 0x1234 |
a687059c LW |
1791 | u.c[0] = (l >> 24) & 255; |
1792 | u.c[1] = (l >> 16) & 255; | |
1793 | u.c[2] = (l >> 8) & 255; | |
1794 | u.c[3] = l & 255; | |
1795 | return u.l; | |
1796 | #else | |
ffed7fef | 1797 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1798 | croak("Unknown BYTEORDER\n"); |
a687059c | 1799 | #else |
79072805 LW |
1800 | register I32 o; |
1801 | register I32 s; | |
a687059c LW |
1802 | |
1803 | u.l = l; | |
1804 | l = 0; | |
ffed7fef LW |
1805 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1806 | l |= (u.c[o & 0xf] & 255) << s; | |
a687059c LW |
1807 | } |
1808 | return l; | |
1809 | #endif | |
1810 | #endif | |
1811 | } | |
1812 | ||
ffed7fef | 1813 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 LW |
1814 | #endif /* MYSWAP */ |
1815 | ||
1816 | /* | |
1817 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. | |
1818 | * If these functions are defined, | |
1819 | * the BYTEORDER is neither 0x1234 nor 0x4321. | |
1820 | * However, this is not assumed. | |
1821 | * -DWS | |
1822 | */ | |
1823 | ||
1824 | #define HTOV(name,type) \ | |
1825 | type \ | |
1826 | name (n) \ | |
1827 | register type n; \ | |
1828 | { \ | |
1829 | union { \ | |
1830 | type value; \ | |
1831 | char c[sizeof(type)]; \ | |
1832 | } u; \ | |
79072805 LW |
1833 | register I32 i; \ |
1834 | register I32 s; \ | |
988174c1 LW |
1835 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1836 | u.c[i] = (n >> s) & 0xFF; \ | |
1837 | } \ | |
1838 | return u.value; \ | |
1839 | } | |
1840 | ||
1841 | #define VTOH(name,type) \ | |
1842 | type \ | |
1843 | name (n) \ | |
1844 | register type n; \ | |
1845 | { \ | |
1846 | union { \ | |
1847 | type value; \ | |
1848 | char c[sizeof(type)]; \ | |
1849 | } u; \ | |
79072805 LW |
1850 | register I32 i; \ |
1851 | register I32 s; \ | |
988174c1 LW |
1852 | u.value = n; \ |
1853 | n = 0; \ | |
1854 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ | |
1855 | n += (u.c[i] & 0xFF) << s; \ | |
1856 | } \ | |
1857 | return n; \ | |
1858 | } | |
1859 | ||
1860 | #if defined(HAS_HTOVS) && !defined(htovs) | |
1861 | HTOV(htovs,short) | |
1862 | #endif | |
1863 | #if defined(HAS_HTOVL) && !defined(htovl) | |
1864 | HTOV(htovl,long) | |
1865 | #endif | |
1866 | #if defined(HAS_VTOHS) && !defined(vtohs) | |
1867 | VTOH(vtohs,short) | |
1868 | #endif | |
1869 | #if defined(HAS_VTOHL) && !defined(vtohl) | |
1870 | VTOH(vtohl,long) | |
1871 | #endif | |
a687059c | 1872 | |
5f05dabc | 1873 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
092bebab | 1874 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) |
760ac839 | 1875 | PerlIO * |
8ac85365 | 1876 | my_popen(char *cmd, char *mode) |
a687059c LW |
1877 | { |
1878 | int p[2]; | |
8ac85365 | 1879 | register I32 This, that; |
79072805 LW |
1880 | register I32 pid; |
1881 | SV *sv; | |
1738f5c4 | 1882 | I32 doexec = strNE(cmd,"-"); |
a687059c | 1883 | |
ddcf38b7 IZ |
1884 | #ifdef OS2 |
1885 | if (doexec) { | |
1886 | return my_syspopen(cmd,mode); | |
1887 | } | |
1888 | #endif | |
8ac85365 NIS |
1889 | This = (*mode == 'w'); |
1890 | that = !This; | |
3280af22 | 1891 | if (doexec && PL_tainting) { |
bbce6d69 | 1892 | taint_env(); |
1893 | taint_proper("Insecure %s%s", "EXEC"); | |
d48672a2 | 1894 | } |
c2267164 IZ |
1895 | if (PerlProc_pipe(p) < 0) |
1896 | return Nullfp; | |
a687059c LW |
1897 | while ((pid = (doexec?vfork():fork())) < 0) { |
1898 | if (errno != EAGAIN) { | |
6ad3d225 | 1899 | PerlLIO_close(p[This]); |
a687059c | 1900 | if (!doexec) |
463ee0b2 | 1901 | croak("Can't fork"); |
a687059c LW |
1902 | return Nullfp; |
1903 | } | |
1904 | sleep(5); | |
1905 | } | |
1906 | if (pid == 0) { | |
79072805 LW |
1907 | GV* tmpgv; |
1908 | ||
30ac6d9b GS |
1909 | #undef THIS |
1910 | #undef THAT | |
a687059c | 1911 | #define THIS that |
8ac85365 | 1912 | #define THAT This |
6ad3d225 | 1913 | PerlLIO_close(p[THAT]); |
a687059c | 1914 | if (p[THIS] != (*mode == 'r')) { |
6ad3d225 GS |
1915 | PerlLIO_dup2(p[THIS], *mode == 'r'); |
1916 | PerlLIO_close(p[THIS]); | |
a687059c LW |
1917 | } |
1918 | if (doexec) { | |
a0d0e21e | 1919 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 LW |
1920 | int fd; |
1921 | ||
1922 | #ifndef NOFILE | |
1923 | #define NOFILE 20 | |
1924 | #endif | |
6b88bc9c | 1925 | for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++) |
6ad3d225 | 1926 | PerlLIO_close(fd); |
ae986130 | 1927 | #endif |
a687059c | 1928 | do_exec(cmd); /* may or may not use the shell */ |
6ad3d225 | 1929 | PerlProc__exit(1); |
a687059c | 1930 | } |
de3bb511 | 1931 | /*SUPPRESS 560*/ |
85e6fe83 | 1932 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 1933 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
3280af22 NIS |
1934 | PL_forkprocess = 0; |
1935 | hv_clear(PL_pidstatus); /* we have no children */ | |
a687059c LW |
1936 | return Nullfp; |
1937 | #undef THIS | |
1938 | #undef THAT | |
1939 | } | |
62b28dd9 | 1940 | do_execfree(); /* free any memory malloced by child on vfork */ |
6ad3d225 | 1941 | PerlLIO_close(p[that]); |
8ac85365 | 1942 | if (p[that] < p[This]) { |
6ad3d225 GS |
1943 | PerlLIO_dup2(p[This], p[that]); |
1944 | PerlLIO_close(p[This]); | |
8ac85365 | 1945 | p[This] = p[that]; |
62b28dd9 | 1946 | } |
3280af22 | 1947 | sv = *av_fetch(PL_fdpid,p[This],TRUE); |
a0d0e21e | 1948 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 1949 | SvIVX(sv) = pid; |
3280af22 | 1950 | PL_forkprocess = pid; |
8ac85365 | 1951 | return PerlIO_fdopen(p[This], mode); |
a687059c | 1952 | } |
7c0587c8 | 1953 | #else |
55497cff | 1954 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 | 1955 | FILE *popen(); |
760ac839 | 1956 | PerlIO * |
79072805 | 1957 | my_popen(cmd,mode) |
7c0587c8 LW |
1958 | char *cmd; |
1959 | char *mode; | |
1960 | { | |
760ac839 | 1961 | /* Needs work for PerlIO ! */ |
55497cff | 1962 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1963 | return popen(PerlIO_exportFILE(cmd, 0), mode); | |
7c0587c8 LW |
1964 | } |
1965 | #endif | |
1966 | ||
1967 | #endif /* !DOSISH */ | |
a687059c | 1968 | |
748a9306 | 1969 | #ifdef DUMP_FDS |
35ff7856 GS |
1970 | void |
1971 | dump_fds(char *s) | |
ae986130 LW |
1972 | { |
1973 | int fd; | |
1974 | struct stat tmpstatbuf; | |
1975 | ||
760ac839 | 1976 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 | 1977 | for (fd = 0; fd < 32; fd++) { |
6ad3d225 | 1978 | if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0) |
760ac839 | 1979 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 | 1980 | } |
760ac839 | 1981 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 | 1982 | } |
35ff7856 | 1983 | #endif /* DUMP_FDS */ |
ae986130 | 1984 | |
fe14fcc3 | 1985 | #ifndef HAS_DUP2 |
fec02dd3 | 1986 | int |
a687059c LW |
1987 | dup2(oldfd,newfd) |
1988 | int oldfd; | |
1989 | int newfd; | |
1990 | { | |
a0d0e21e | 1991 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 AD |
1992 | if (oldfd == newfd) |
1993 | return oldfd; | |
6ad3d225 | 1994 | PerlLIO_close(newfd); |
fec02dd3 | 1995 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 | 1996 | #else |
fc36a67e | 1997 | #define DUP2_MAX_FDS 256 |
1998 | int fdtmp[DUP2_MAX_FDS]; | |
79072805 | 1999 | I32 fdx = 0; |
ae986130 LW |
2000 | int fd; |
2001 | ||
fe14fcc3 | 2002 | if (oldfd == newfd) |
fec02dd3 | 2003 | return oldfd; |
6ad3d225 | 2004 | PerlLIO_close(newfd); |
fc36a67e | 2005 | /* good enough for low fd's... */ |
6ad3d225 | 2006 | while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) { |
fc36a67e | 2007 | if (fdx >= DUP2_MAX_FDS) { |
6ad3d225 | 2008 | PerlLIO_close(fd); |
fc36a67e | 2009 | fd = -1; |
2010 | break; | |
2011 | } | |
ae986130 | 2012 | fdtmp[fdx++] = fd; |
fc36a67e | 2013 | } |
ae986130 | 2014 | while (fdx > 0) |
6ad3d225 | 2015 | PerlLIO_close(fdtmp[--fdx]); |
fec02dd3 | 2016 | return fd; |
62b28dd9 | 2017 | #endif |
a687059c LW |
2018 | } |
2019 | #endif | |
2020 | ||
ff68c719 | 2021 | |
2022 | #ifdef HAS_SIGACTION | |
2023 | ||
2024 | Sighandler_t | |
8ac85365 | 2025 | rsignal(int signo, Sighandler_t handler) |
ff68c719 | 2026 | { |
2027 | struct sigaction act, oact; | |
2028 | ||
2029 | act.sa_handler = handler; | |
2030 | sigemptyset(&act.sa_mask); | |
2031 | act.sa_flags = 0; | |
2032 | #ifdef SA_RESTART | |
2033 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
2034 | #endif | |
85264bed CS |
2035 | #ifdef SA_NOCLDWAIT |
2036 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) | |
2037 | act.sa_flags |= SA_NOCLDWAIT; | |
2038 | #endif | |
ff68c719 | 2039 | if (sigaction(signo, &act, &oact) == -1) |
36477c24 | 2040 | return SIG_ERR; |
ff68c719 | 2041 | else |
36477c24 | 2042 | return oact.sa_handler; |
ff68c719 | 2043 | } |
2044 | ||
2045 | Sighandler_t | |
8ac85365 | 2046 | rsignal_state(int signo) |
ff68c719 | 2047 | { |
2048 | struct sigaction oact; | |
2049 | ||
2050 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) | |
2051 | return SIG_ERR; | |
2052 | else | |
2053 | return oact.sa_handler; | |
2054 | } | |
2055 | ||
2056 | int | |
8ac85365 | 2057 | rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 | 2058 | { |
2059 | struct sigaction act; | |
2060 | ||
2061 | act.sa_handler = handler; | |
2062 | sigemptyset(&act.sa_mask); | |
2063 | act.sa_flags = 0; | |
2064 | #ifdef SA_RESTART | |
2065 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
2066 | #endif | |
85264bed CS |
2067 | #ifdef SA_NOCLDWAIT |
2068 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) | |
2069 | act.sa_flags |= SA_NOCLDWAIT; | |
2070 | #endif | |
ff68c719 | 2071 | return sigaction(signo, &act, save); |
2072 | } | |
2073 | ||
2074 | int | |
8ac85365 | 2075 | rsignal_restore(int signo, Sigsave_t *save) |
ff68c719 | 2076 | { |
2077 | return sigaction(signo, save, (struct sigaction *)NULL); | |
2078 | } | |
2079 | ||
2080 | #else /* !HAS_SIGACTION */ | |
2081 | ||
2082 | Sighandler_t | |
4e35701f | 2083 | rsignal(int signo, Sighandler_t handler) |
ff68c719 | 2084 | { |
6ad3d225 | 2085 | return PerlProc_signal(signo, handler); |
ff68c719 | 2086 | } |
2087 | ||
2088 | static int sig_trapped; | |
2089 | ||
2090 | static | |
2091 | Signal_t | |
4e35701f | 2092 | sig_trap(int signo) |
ff68c719 | 2093 | { |
2094 | sig_trapped++; | |
2095 | } | |
2096 | ||
2097 | Sighandler_t | |
4e35701f | 2098 | rsignal_state(int signo) |
ff68c719 | 2099 | { |
2100 | Sighandler_t oldsig; | |
2101 | ||
2102 | sig_trapped = 0; | |
6ad3d225 GS |
2103 | oldsig = PerlProc_signal(signo, sig_trap); |
2104 | PerlProc_signal(signo, oldsig); | |
ff68c719 | 2105 | if (sig_trapped) |
6ad3d225 | 2106 | PerlProc_kill(getpid(), signo); |
ff68c719 | 2107 | return oldsig; |
2108 | } | |
2109 | ||
2110 | int | |
4e35701f | 2111 | rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 | 2112 | { |
6ad3d225 | 2113 | *save = PerlProc_signal(signo, handler); |
ff68c719 | 2114 | return (*save == SIG_ERR) ? -1 : 0; |
2115 | } | |
2116 | ||
2117 | int | |
4e35701f | 2118 | rsignal_restore(int signo, Sigsave_t *save) |
ff68c719 | 2119 | { |
6ad3d225 | 2120 | return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0; |
ff68c719 | 2121 | } |
2122 | ||
2123 | #endif /* !HAS_SIGACTION */ | |
2124 | ||
5f05dabc | 2125 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
092bebab | 2126 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) |
79072805 | 2127 | I32 |
6acef3b7 | 2128 | my_pclose(PerlIO *ptr) |
a687059c | 2129 | { |
ff68c719 | 2130 | Sigsave_t hstat, istat, qstat; |
a687059c | 2131 | int status; |
a0d0e21e | 2132 | SV **svp; |
20188a90 | 2133 | int pid; |
1d3434b8 | 2134 | int pid2; |
03136e13 CS |
2135 | bool close_failed; |
2136 | int saved_errno; | |
2137 | #ifdef VMS | |
2138 | int saved_vaxc_errno; | |
2139 | #endif | |
22fae026 TM |
2140 | #ifdef WIN32 |
2141 | int saved_win32_errno; | |
2142 | #endif | |
a687059c | 2143 | |
3280af22 | 2144 | svp = av_fetch(PL_fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 | 2145 | pid = (int)SvIVX(*svp); |
a0d0e21e | 2146 | SvREFCNT_dec(*svp); |
3280af22 | 2147 | *svp = &PL_sv_undef; |
ddcf38b7 IZ |
2148 | #ifdef OS2 |
2149 | if (pid == -1) { /* Opened by popen. */ | |
2150 | return my_syspclose(ptr); | |
2151 | } | |
2152 | #endif | |
03136e13 CS |
2153 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2154 | saved_errno = errno; | |
2155 | #ifdef VMS | |
2156 | saved_vaxc_errno = vaxc$errno; | |
2157 | #endif | |
22fae026 TM |
2158 | #ifdef WIN32 |
2159 | saved_win32_errno = GetLastError(); | |
2160 | #endif | |
03136e13 | 2161 | } |
7c0587c8 | 2162 | #ifdef UTS |
6ad3d225 | 2163 | if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
7c0587c8 | 2164 | #endif |
ff68c719 | 2165 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2166 | rsignal_save(SIGINT, SIG_IGN, &istat); | |
2167 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); | |
748a9306 | 2168 | do { |
1d3434b8 GS |
2169 | pid2 = wait4pid(pid, &status, 0); |
2170 | } while (pid2 == -1 && errno == EINTR); | |
ff68c719 | 2171 | rsignal_restore(SIGHUP, &hstat); |
2172 | rsignal_restore(SIGINT, &istat); | |
2173 | rsignal_restore(SIGQUIT, &qstat); | |
03136e13 CS |
2174 | if (close_failed) { |
2175 | SETERRNO(saved_errno, saved_vaxc_errno); | |
2176 | return -1; | |
2177 | } | |
1d3434b8 | 2178 | return(pid2 < 0 ? pid2 : status == 0 ? 0 : (errno = 0, status)); |
20188a90 | 2179 | } |
4633a7c4 LW |
2180 | #endif /* !DOSISH */ |
2181 | ||
2d7a9237 | 2182 | #if !defined(DOSISH) || defined(OS2) || defined(WIN32) |
79072805 | 2183 | I32 |
8ac85365 | 2184 | wait4pid(int pid, int *statusp, int flags) |
20188a90 | 2185 | { |
79072805 LW |
2186 | SV *sv; |
2187 | SV** svp; | |
fc36a67e | 2188 | char spid[TYPE_CHARS(int)]; |
20188a90 LW |
2189 | |
2190 | if (!pid) | |
2191 | return -1; | |
20188a90 LW |
2192 | if (pid > 0) { |
2193 | sprintf(spid, "%d", pid); | |
3280af22 NIS |
2194 | svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE); |
2195 | if (svp && *svp != &PL_sv_undef) { | |
463ee0b2 | 2196 | *statusp = SvIVX(*svp); |
3280af22 | 2197 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2198 | return pid; |
2199 | } | |
2200 | } | |
2201 | else { | |
79072805 | 2202 | HE *entry; |
20188a90 | 2203 | |
3280af22 NIS |
2204 | hv_iterinit(PL_pidstatus); |
2205 | if (entry = hv_iternext(PL_pidstatus)) { | |
a0d0e21e | 2206 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
3280af22 | 2207 | sv = hv_iterval(PL_pidstatus,entry); |
463ee0b2 | 2208 | *statusp = SvIVX(sv); |
20188a90 | 2209 | sprintf(spid, "%d", pid); |
3280af22 | 2210 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2211 | return pid; |
2212 | } | |
2213 | } | |
79072805 | 2214 | #ifdef HAS_WAITPID |
367f3c24 IZ |
2215 | # ifdef HAS_WAITPID_RUNTIME |
2216 | if (!HAS_WAITPID_RUNTIME) | |
2217 | goto hard_way; | |
2218 | # endif | |
f55ee38a | 2219 | return PerlProc_waitpid(pid,statusp,flags); |
367f3c24 IZ |
2220 | #endif |
2221 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) | |
a0d0e21e | 2222 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
367f3c24 IZ |
2223 | #endif |
2224 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) | |
2225 | hard_way: | |
a0d0e21e LW |
2226 | { |
2227 | I32 result; | |
2228 | if (flags) | |
2229 | croak("Can't do waitpid with flags"); | |
2230 | else { | |
76e3520e | 2231 | while ((result = PerlProc_wait(statusp)) != pid && pid > 0 && result >= 0) |
a0d0e21e LW |
2232 | pidgone(result,*statusp); |
2233 | if (result < 0) | |
2234 | *statusp = -1; | |
2235 | } | |
2236 | return result; | |
a687059c LW |
2237 | } |
2238 | #endif | |
a687059c | 2239 | } |
2d7a9237 | 2240 | #endif /* !DOSISH || OS2 || WIN32 */ |
a687059c | 2241 | |
7c0587c8 | 2242 | void |
de3bb511 | 2243 | /*SUPPRESS 590*/ |
8ac85365 | 2244 | pidgone(int pid, int status) |
a687059c | 2245 | { |
79072805 | 2246 | register SV *sv; |
fc36a67e | 2247 | char spid[TYPE_CHARS(int)]; |
a687059c | 2248 | |
20188a90 | 2249 | sprintf(spid, "%d", pid); |
3280af22 | 2250 | sv = *hv_fetch(PL_pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e | 2251 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 2252 | SvIVX(sv) = status; |
20188a90 | 2253 | return; |
a687059c LW |
2254 | } |
2255 | ||
55497cff | 2256 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 | 2257 | int pclose(); |
ddcf38b7 IZ |
2258 | #ifdef HAS_FORK |
2259 | int /* Cannot prototype with I32 | |
2260 | in os2ish.h. */ | |
2261 | my_syspclose(ptr) | |
2262 | #else | |
79072805 LW |
2263 | I32 |
2264 | my_pclose(ptr) | |
ddcf38b7 | 2265 | #endif |
760ac839 | 2266 | PerlIO *ptr; |
a687059c | 2267 | { |
760ac839 LW |
2268 | /* Needs work for PerlIO ! */ |
2269 | FILE *f = PerlIO_findFILE(ptr); | |
2270 | I32 result = pclose(f); | |
2271 | PerlIO_releaseFILE(ptr,f); | |
2272 | return result; | |
a687059c | 2273 | } |
7c0587c8 | 2274 | #endif |
9f68db38 LW |
2275 | |
2276 | void | |
8ac85365 | 2277 | repeatcpy(register char *to, register char *from, I32 len, register I32 count) |
9f68db38 | 2278 | { |
79072805 | 2279 | register I32 todo; |
9f68db38 LW |
2280 | register char *frombase = from; |
2281 | ||
2282 | if (len == 1) { | |
2283 | todo = *from; | |
2284 | while (count-- > 0) | |
2285 | *to++ = todo; | |
2286 | return; | |
2287 | } | |
2288 | while (count-- > 0) { | |
2289 | for (todo = len; todo > 0; todo--) { | |
2290 | *to++ = *from++; | |
2291 | } | |
2292 | from = frombase; | |
2293 | } | |
2294 | } | |
0f85fab0 | 2295 | |
463ee0b2 | 2296 | U32 |
22c35a8c | 2297 | cast_ulong(double f) |
0f85fab0 LW |
2298 | { |
2299 | long along; | |
2300 | ||
27e2fb84 | 2301 | #if CASTFLAGS & 2 |
34de22dd LW |
2302 | # define BIGDOUBLE 2147483648.0 |
2303 | if (f >= BIGDOUBLE) | |
2304 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; | |
2305 | #endif | |
0f85fab0 LW |
2306 | if (f >= 0.0) |
2307 | return (unsigned long)f; | |
2308 | along = (long)f; | |
2309 | return (unsigned long)along; | |
2310 | } | |
ed6116ce | 2311 | # undef BIGDOUBLE |
5d94fbed | 2312 | |
5d94fbed AD |
2313 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2314 | work with the system-supplied definition of ULONG_MAX. The | |
2315 | comparison (f >= ULONG_MAX) always comes out true. It must be a | |
2316 | problem with the compiler constant folding. | |
2317 | ||
2318 | In any case, this workaround should be fine on any two's complement | |
2319 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your | |
2320 | ccflags. | |
2321 | --Andy Dougherty <doughera@lafcol.lafayette.edu> | |
2322 | */ | |
1eb770ff | 2323 | |
2324 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead | |
2325 | of LONG_(MIN/MAX). | |
2326 | -- Kenneth Albanowski <kjahds@kjahds.com> | |
2327 | */ | |
2328 | ||
20cec16a | 2329 | #ifndef MY_UV_MAX |
2330 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) | |
5d94fbed AD |
2331 | #endif |
2332 | ||
ed6116ce | 2333 | I32 |
22c35a8c | 2334 | cast_i32(double f) |
ed6116ce | 2335 | { |
20cec16a | 2336 | if (f >= I32_MAX) |
2337 | return (I32) I32_MAX; | |
2338 | if (f <= I32_MIN) | |
2339 | return (I32) I32_MIN; | |
ed6116ce LW |
2340 | return (I32) f; |
2341 | } | |
a0d0e21e LW |
2342 | |
2343 | IV | |
22c35a8c | 2344 | cast_iv(double f) |
a0d0e21e | 2345 | { |
20cec16a | 2346 | if (f >= IV_MAX) |
2347 | return (IV) IV_MAX; | |
2348 | if (f <= IV_MIN) | |
2349 | return (IV) IV_MIN; | |
a0d0e21e LW |
2350 | return (IV) f; |
2351 | } | |
5d94fbed AD |
2352 | |
2353 | UV | |
22c35a8c | 2354 | cast_uv(double f) |
5d94fbed | 2355 | { |
20cec16a | 2356 | if (f >= MY_UV_MAX) |
2357 | return (UV) MY_UV_MAX; | |
5d94fbed AD |
2358 | return (UV) f; |
2359 | } | |
2360 | ||
fe14fcc3 | 2361 | #ifndef HAS_RENAME |
79072805 | 2362 | I32 |
22c35a8c | 2363 | same_dirent(char *a, char *b) |
62b28dd9 | 2364 | { |
93a17b20 LW |
2365 | char *fa = strrchr(a,'/'); |
2366 | char *fb = strrchr(b,'/'); | |
62b28dd9 LW |
2367 | struct stat tmpstatbuf1; |
2368 | struct stat tmpstatbuf2; | |
46fc3d4c | 2369 | SV *tmpsv = sv_newmortal(); |
62b28dd9 LW |
2370 | |
2371 | if (fa) | |
2372 | fa++; | |
2373 | else | |
2374 | fa = a; | |
2375 | if (fb) | |
2376 | fb++; | |
2377 | else | |
2378 | fb = b; | |
2379 | if (strNE(a,b)) | |
2380 | return FALSE; | |
2381 | if (fa == a) | |
46fc3d4c | 2382 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2383 | else |
46fc3d4c | 2384 | sv_setpvn(tmpsv, a, fa - a); |
c6ed36e1 | 2385 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
62b28dd9 LW |
2386 | return FALSE; |
2387 | if (fb == b) | |
46fc3d4c | 2388 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2389 | else |
46fc3d4c | 2390 | sv_setpvn(tmpsv, b, fb - b); |
c6ed36e1 | 2391 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
62b28dd9 LW |
2392 | return FALSE; |
2393 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && | |
2394 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; | |
2395 | } | |
fe14fcc3 LW |
2396 | #endif /* !HAS_RENAME */ |
2397 | ||
55497cff | 2398 | UV |
8ac85365 | 2399 | scan_oct(char *start, I32 len, I32 *retlen) |
fe14fcc3 LW |
2400 | { |
2401 | register char *s = start; | |
55497cff | 2402 | register UV retval = 0; |
2403 | bool overflowed = FALSE; | |
fe14fcc3 | 2404 | |
748a9306 | 2405 | while (len && *s >= '0' && *s <= '7') { |
55497cff | 2406 | register UV n = retval << 3; |
2407 | if (!overflowed && (n >> 3) != retval) { | |
2408 | warn("Integer overflow in octal number"); | |
2409 | overflowed = TRUE; | |
2410 | } | |
2411 | retval = n | (*s++ - '0'); | |
748a9306 | 2412 | len--; |
fe14fcc3 | 2413 | } |
d008e5eb GS |
2414 | if (len && (*s == '8' || *s == '9')) { |
2415 | dTHR; | |
2416 | if (ckWARN(WARN_OCTAL)) | |
2417 | warner(WARN_OCTAL, "Illegal octal digit ignored"); | |
2418 | } | |
fe14fcc3 LW |
2419 | *retlen = s - start; |
2420 | return retval; | |
2421 | } | |
2422 | ||
71be2cbc | 2423 | UV |
8ac85365 | 2424 | scan_hex(char *start, I32 len, I32 *retlen) |
fe14fcc3 LW |
2425 | { |
2426 | register char *s = start; | |
55497cff | 2427 | register UV retval = 0; |
2428 | bool overflowed = FALSE; | |
6ff81951 | 2429 | char *tmp = s; |
a0ed51b3 | 2430 | register UV n; |
fe14fcc3 | 2431 | |
a0ed51b3 LW |
2432 | while (len-- && *s) { |
2433 | tmp = strchr((char *) PL_hexdigit, *s++); | |
2434 | if (!tmp) { | |
e3fdf988 | 2435 | if (*(s-1) == '_' || (*(s-1) == 'x' && retval == 0)) |
a0ed51b3 LW |
2436 | continue; |
2437 | else { | |
d008e5eb | 2438 | dTHR; |
a0ed51b3 | 2439 | --s; |
599cee73 PM |
2440 | if (ckWARN(WARN_UNSAFE)) |
2441 | warner(WARN_UNSAFE,"Illegal hex digit ignored"); | |
a0ed51b3 LW |
2442 | break; |
2443 | } | |
2444 | } | |
2445 | n = retval << 4; | |
55497cff | 2446 | if (!overflowed && (n >> 4) != retval) { |
2447 | warn("Integer overflow in hex number"); | |
2448 | overflowed = TRUE; | |
2449 | } | |
3280af22 | 2450 | retval = n | ((tmp - PL_hexdigit) & 15); |
6ff81951 | 2451 | } |
fe14fcc3 LW |
2452 | *retlen = s - start; |
2453 | return retval; | |
2454 | } | |
760ac839 | 2455 | |
491527d0 GS |
2456 | char* |
2457 | find_script(char *scriptname, bool dosearch, char **search_ext, I32 flags) | |
2458 | { | |
2459 | dTHR; | |
2460 | char *xfound = Nullch; | |
2461 | char *xfailed = Nullch; | |
84486fc6 | 2462 | char tmpbuf[512]; |
491527d0 GS |
2463 | register char *s; |
2464 | I32 len; | |
2465 | int retval; | |
2466 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
2467 | # define SEARCH_EXTS ".bat", ".cmd", NULL | |
2468 | # define MAX_EXT_LEN 4 | |
2469 | #endif | |
2470 | #ifdef OS2 | |
2471 | # define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL | |
2472 | # define MAX_EXT_LEN 4 | |
2473 | #endif | |
2474 | #ifdef VMS | |
2475 | # define SEARCH_EXTS ".pl", ".com", NULL | |
2476 | # define MAX_EXT_LEN 4 | |
2477 | #endif | |
2478 | /* additional extensions to try in each dir if scriptname not found */ | |
2479 | #ifdef SEARCH_EXTS | |
2480 | char *exts[] = { SEARCH_EXTS }; | |
2481 | char **ext = search_ext ? search_ext : exts; | |
2482 | int extidx = 0, i = 0; | |
2483 | char *curext = Nullch; | |
2484 | #else | |
2485 | # define MAX_EXT_LEN 0 | |
2486 | #endif | |
2487 | ||
2488 | /* | |
2489 | * If dosearch is true and if scriptname does not contain path | |
2490 | * delimiters, search the PATH for scriptname. | |
2491 | * | |
2492 | * If SEARCH_EXTS is also defined, will look for each | |
2493 | * scriptname{SEARCH_EXTS} whenever scriptname is not found | |
2494 | * while searching the PATH. | |
2495 | * | |
2496 | * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search | |
2497 | * proceeds as follows: | |
2498 | * If DOSISH or VMSISH: | |
2499 | * + look for ./scriptname{,.foo,.bar} | |
2500 | * + search the PATH for scriptname{,.foo,.bar} | |
2501 | * | |
2502 | * If !DOSISH: | |
2503 | * + look *only* in the PATH for scriptname{,.foo,.bar} (note | |
2504 | * this will not look in '.' if it's not in the PATH) | |
2505 | */ | |
84486fc6 | 2506 | tmpbuf[0] = '\0'; |
491527d0 GS |
2507 | |
2508 | #ifdef VMS | |
2509 | # ifdef ALWAYS_DEFTYPES | |
2510 | len = strlen(scriptname); | |
2511 | if (!(len == 1 && *scriptname == '-') && scriptname[len-1] != ':') { | |
2512 | int hasdir, idx = 0, deftypes = 1; | |
2513 | bool seen_dot = 1; | |
2514 | ||
2515 | hasdir = !dosearch || (strpbrk(scriptname,":[</") != Nullch) ; | |
2516 | # else | |
2517 | if (dosearch) { | |
2518 | int hasdir, idx = 0, deftypes = 1; | |
2519 | bool seen_dot = 1; | |
2520 | ||
2521 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
2522 | # endif | |
2523 | /* The first time through, just add SEARCH_EXTS to whatever we | |
2524 | * already have, so we can check for default file types. */ | |
2525 | while (deftypes || | |
84486fc6 | 2526 | (!hasdir && my_trnlnm("DCL$PATH",tmpbuf,idx++)) ) |
491527d0 GS |
2527 | { |
2528 | if (deftypes) { | |
2529 | deftypes = 0; | |
84486fc6 | 2530 | *tmpbuf = '\0'; |
491527d0 | 2531 | } |
84486fc6 GS |
2532 | if ((strlen(tmpbuf) + strlen(scriptname) |
2533 | + MAX_EXT_LEN) >= sizeof tmpbuf) | |
491527d0 | 2534 | continue; /* don't search dir with too-long name */ |
84486fc6 | 2535 | strcat(tmpbuf, scriptname); |
491527d0 GS |
2536 | #else /* !VMS */ |
2537 | ||
2538 | #ifdef DOSISH | |
2539 | if (strEQ(scriptname, "-")) | |
2540 | dosearch = 0; | |
2541 | if (dosearch) { /* Look in '.' first. */ | |
2542 | char *cur = scriptname; | |
2543 | #ifdef SEARCH_EXTS | |
2544 | if ((curext = strrchr(scriptname,'.'))) /* possible current ext */ | |
2545 | while (ext[i]) | |
2546 | if (strEQ(ext[i++],curext)) { | |
2547 | extidx = -1; /* already has an ext */ | |
2548 | break; | |
2549 | } | |
2550 | do { | |
2551 | #endif | |
2552 | DEBUG_p(PerlIO_printf(Perl_debug_log, | |
2553 | "Looking for %s\n",cur)); | |
017f25f1 IZ |
2554 | if (PerlLIO_stat(cur,&PL_statbuf) >= 0 |
2555 | && !S_ISDIR(PL_statbuf.st_mode)) { | |
491527d0 GS |
2556 | dosearch = 0; |
2557 | scriptname = cur; | |
2558 | #ifdef SEARCH_EXTS | |
2559 | break; | |
2560 | #endif | |
2561 | } | |
2562 | #ifdef SEARCH_EXTS | |
2563 | if (cur == scriptname) { | |
2564 | len = strlen(scriptname); | |
84486fc6 | 2565 | if (len+MAX_EXT_LEN+1 >= sizeof(tmpbuf)) |
491527d0 | 2566 | break; |
84486fc6 | 2567 | cur = strcpy(tmpbuf, scriptname); |
491527d0 GS |
2568 | } |
2569 | } while (extidx >= 0 && ext[extidx] /* try an extension? */ | |
84486fc6 | 2570 | && strcpy(tmpbuf+len, ext[extidx++])); |
491527d0 GS |
2571 | #endif |
2572 | } | |
2573 | #endif | |
2574 | ||
2575 | if (dosearch && !strchr(scriptname, '/') | |
2576 | #ifdef DOSISH | |
2577 | && !strchr(scriptname, '\\') | |
2578 | #endif | |
2579 | && (s = PerlEnv_getenv("PATH"))) { | |
2580 | bool seen_dot = 0; | |
2581 | ||
3280af22 NIS |
2582 | PL_bufend = s + strlen(s); |
2583 | while (s < PL_bufend) { | |
491527d0 GS |
2584 | #if defined(atarist) || defined(DOSISH) |
2585 | for (len = 0; *s | |
2586 | # ifdef atarist | |
2587 | && *s != ',' | |
2588 | # endif | |
2589 | && *s != ';'; len++, s++) { | |
84486fc6 GS |
2590 | if (len < sizeof tmpbuf) |
2591 | tmpbuf[len] = *s; | |
491527d0 | 2592 | } |
84486fc6 GS |
2593 | if (len < sizeof tmpbuf) |
2594 | tmpbuf[len] = '\0'; | |
491527d0 | 2595 | #else /* ! (atarist || DOSISH) */ |
3280af22 | 2596 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend, |
491527d0 GS |
2597 | ':', |
2598 | &len); | |
2599 | #endif /* ! (atarist || DOSISH) */ | |
3280af22 | 2600 | if (s < PL_bufend) |
491527d0 | 2601 | s++; |
84486fc6 | 2602 | if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf) |
491527d0 GS |
2603 | continue; /* don't search dir with too-long name */ |
2604 | if (len | |
2605 | #if defined(atarist) || defined(DOSISH) | |
84486fc6 GS |
2606 | && tmpbuf[len - 1] != '/' |
2607 | && tmpbuf[len - 1] != '\\' | |
491527d0 GS |
2608 | #endif |
2609 | ) | |
84486fc6 GS |
2610 | tmpbuf[len++] = '/'; |
2611 | if (len == 2 && tmpbuf[0] == '.') | |
491527d0 | 2612 | seen_dot = 1; |
84486fc6 | 2613 | (void)strcpy(tmpbuf + len, scriptname); |
491527d0 GS |
2614 | #endif /* !VMS */ |
2615 | ||
2616 | #ifdef SEARCH_EXTS | |
84486fc6 | 2617 | len = strlen(tmpbuf); |
491527d0 GS |
2618 | if (extidx > 0) /* reset after previous loop */ |
2619 | extidx = 0; | |
2620 | do { | |
2621 | #endif | |
84486fc6 | 2622 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tmpbuf)); |
3280af22 | 2623 | retval = PerlLIO_stat(tmpbuf,&PL_statbuf); |
017f25f1 IZ |
2624 | if (S_ISDIR(PL_statbuf.st_mode)) { |
2625 | retval = -1; | |
2626 | } | |
491527d0 GS |
2627 | #ifdef SEARCH_EXTS |
2628 | } while ( retval < 0 /* not there */ | |
2629 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
84486fc6 | 2630 | && strcpy(tmpbuf+len, ext[extidx++]) |
491527d0 GS |
2631 | ); |
2632 | #endif | |
2633 | if (retval < 0) | |
2634 | continue; | |
3280af22 NIS |
2635 | if (S_ISREG(PL_statbuf.st_mode) |
2636 | && cando(S_IRUSR,TRUE,&PL_statbuf) | |
491527d0 | 2637 | #ifndef DOSISH |
3280af22 | 2638 | && cando(S_IXUSR,TRUE,&PL_statbuf) |
491527d0 GS |
2639 | #endif |
2640 | ) | |
2641 | { | |
84486fc6 | 2642 | xfound = tmpbuf; /* bingo! */ |
491527d0 GS |
2643 | break; |
2644 | } | |
2645 | if (!xfailed) | |
84486fc6 | 2646 | xfailed = savepv(tmpbuf); |
491527d0 GS |
2647 | } |
2648 | #ifndef DOSISH | |
017f25f1 IZ |
2649 | if (!xfound && !seen_dot && !xfailed && |
2650 | (PerlLIO_stat(scriptname,&PL_statbuf) < 0 | |
2651 | || S_ISDIR(PL_statbuf.st_mode))) | |
491527d0 GS |
2652 | #endif |
2653 | seen_dot = 1; /* Disable message. */ | |
9ccb31f9 GS |
2654 | if (!xfound) { |
2655 | if (flags & 1) { /* do or die? */ | |
2656 | croak("Can't %s %s%s%s", | |
2657 | (xfailed ? "execute" : "find"), | |
2658 | (xfailed ? xfailed : scriptname), | |
2659 | (xfailed ? "" : " on PATH"), | |
2660 | (xfailed || seen_dot) ? "" : ", '.' not in PATH"); | |
2661 | } | |
2662 | scriptname = Nullch; | |
2663 | } | |
491527d0 GS |
2664 | if (xfailed) |
2665 | Safefree(xfailed); | |
2666 | scriptname = xfound; | |
2667 | } | |
9ccb31f9 | 2668 | return (scriptname ? savepv(scriptname) : Nullch); |
491527d0 GS |
2669 | } |
2670 | ||
2671 | ||
11343788 | 2672 | #ifdef USE_THREADS |
12ca11f6 MB |
2673 | #ifdef FAKE_THREADS |
2674 | /* Very simplistic scheduler for now */ | |
2675 | void | |
2676 | schedule(void) | |
2677 | { | |
c7848ba1 | 2678 | thr = thr->i.next_run; |
12ca11f6 MB |
2679 | } |
2680 | ||
2681 | void | |
22c35a8c | 2682 | perl_cond_init(perl_cond *cp) |
12ca11f6 MB |
2683 | { |
2684 | *cp = 0; | |
2685 | } | |
2686 | ||
2687 | void | |
22c35a8c | 2688 | perl_cond_signal(perl_cond *cp) |
12ca11f6 | 2689 | { |
51dd5992 | 2690 | perl_os_thread t; |
12ca11f6 MB |
2691 | perl_cond cond = *cp; |
2692 | ||
2693 | if (!cond) | |
2694 | return; | |
2695 | t = cond->thread; | |
2696 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
2697 | t->i.next_run = thr->i.next_run; |
2698 | thr->i.next_run->i.prev_run = t; | |
2699 | t->i.prev_run = thr; | |
2700 | thr->i.next_run = t; | |
2701 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
2702 | /* Remove from the wait queue */ |
2703 | *cp = cond->next; | |
2704 | Safefree(cond); | |
2705 | } | |
2706 | ||
2707 | void | |
22c35a8c | 2708 | perl_cond_broadcast(perl_cond *cp) |
12ca11f6 | 2709 | { |
51dd5992 | 2710 | perl_os_thread t; |
12ca11f6 MB |
2711 | perl_cond cond, cond_next; |
2712 | ||
2713 | for (cond = *cp; cond; cond = cond_next) { | |
2714 | t = cond->thread; | |
2715 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
2716 | t->i.next_run = thr->i.next_run; |
2717 | thr->i.next_run->i.prev_run = t; | |
2718 | t->i.prev_run = thr; | |
2719 | thr->i.next_run = t; | |
2720 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
2721 | /* Remove from the wait queue */ |
2722 | cond_next = cond->next; | |
2723 | Safefree(cond); | |
2724 | } | |
2725 | *cp = 0; | |
2726 | } | |
2727 | ||
2728 | void | |
22c35a8c | 2729 | perl_cond_wait(perl_cond *cp) |
12ca11f6 MB |
2730 | { |
2731 | perl_cond cond; | |
2732 | ||
c7848ba1 | 2733 | if (thr->i.next_run == thr) |
12ca11f6 MB |
2734 | croak("panic: perl_cond_wait called by last runnable thread"); |
2735 | ||
0f15f207 | 2736 | New(666, cond, 1, struct perl_wait_queue); |
12ca11f6 MB |
2737 | cond->thread = thr; |
2738 | cond->next = *cp; | |
2739 | *cp = cond; | |
c7848ba1 | 2740 | thr->i.wait_queue = cond; |
12ca11f6 | 2741 | /* Remove ourselves from runnable queue */ |
c7848ba1 MB |
2742 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
2743 | thr->i.prev_run->i.next_run = thr->i.next_run; | |
12ca11f6 MB |
2744 | } |
2745 | #endif /* FAKE_THREADS */ | |
2746 | ||
0d85d877 | 2747 | #ifdef PTHREAD_GETSPECIFIC_INT |
52e1cb5e | 2748 | struct perl_thread * |
11343788 MB |
2749 | getTHR _((void)) |
2750 | { | |
2751 | pthread_addr_t t; | |
2752 | ||
6b88bc9c | 2753 | if (pthread_getspecific(PL_thr_key, &t)) |
11343788 | 2754 | croak("panic: pthread_getspecific"); |
52e1cb5e | 2755 | return (struct perl_thread *) t; |
11343788 | 2756 | } |
0d85d877 | 2757 | #endif |
f93b4edd MB |
2758 | |
2759 | MAGIC * | |
8ac85365 | 2760 | condpair_magic(SV *sv) |
f93b4edd MB |
2761 | { |
2762 | MAGIC *mg; | |
2763 | ||
2764 | SvUPGRADE(sv, SVt_PVMG); | |
2765 | mg = mg_find(sv, 'm'); | |
2766 | if (!mg) { | |
2767 | condpair_t *cp; | |
2768 | ||
2769 | New(53, cp, 1, condpair_t); | |
2770 | MUTEX_INIT(&cp->mutex); | |
2771 | COND_INIT(&cp->owner_cond); | |
2772 | COND_INIT(&cp->cond); | |
2773 | cp->owner = 0; | |
940cb80d | 2774 | LOCK_SV_MUTEX; |
f93b4edd MB |
2775 | mg = mg_find(sv, 'm'); |
2776 | if (mg) { | |
2777 | /* someone else beat us to initialising it */ | |
940cb80d | 2778 | UNLOCK_SV_MUTEX; |
f93b4edd MB |
2779 | MUTEX_DESTROY(&cp->mutex); |
2780 | COND_DESTROY(&cp->owner_cond); | |
2781 | COND_DESTROY(&cp->cond); | |
2782 | Safefree(cp); | |
2783 | } | |
2784 | else { | |
2785 | sv_magic(sv, Nullsv, 'm', 0, 0); | |
2786 | mg = SvMAGIC(sv); | |
2787 | mg->mg_ptr = (char *)cp; | |
565764a8 | 2788 | mg->mg_len = sizeof(cp); |
940cb80d | 2789 | UNLOCK_SV_MUTEX; |
8b73bbec | 2790 | DEBUG_S(WITH_THR(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 2791 | "%p: condpair_magic %p\n", thr, sv));) |
f93b4edd MB |
2792 | } |
2793 | } | |
2794 | return mg; | |
2795 | } | |
a863c7d1 MB |
2796 | |
2797 | /* | |
199100c8 MB |
2798 | * Make a new perl thread structure using t as a prototype. Some of the |
2799 | * fields for the new thread are copied from the prototype thread, t, | |
2800 | * so t should not be running in perl at the time this function is | |
2801 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the | |
2802 | * thread calling new_struct_thread) clearly satisfies this constraint. | |
a863c7d1 | 2803 | */ |
52e1cb5e JH |
2804 | struct perl_thread * |
2805 | new_struct_thread(struct perl_thread *t) | |
a863c7d1 | 2806 | { |
52e1cb5e | 2807 | struct perl_thread *thr; |
a863c7d1 | 2808 | SV *sv; |
199100c8 MB |
2809 | SV **svp; |
2810 | I32 i; | |
2811 | ||
2812 | sv = newSVpv("", 0); | |
52e1cb5e JH |
2813 | SvGROW(sv, sizeof(struct perl_thread) + 1); |
2814 | SvCUR_set(sv, sizeof(struct perl_thread)); | |
199100c8 | 2815 | thr = (Thread) SvPVX(sv); |
949ced2d | 2816 | #ifdef DEBUGGING |
52e1cb5e | 2817 | memset(thr, 0xab, sizeof(struct perl_thread)); |
533c011a NIS |
2818 | PL_markstack = 0; |
2819 | PL_scopestack = 0; | |
2820 | PL_savestack = 0; | |
2821 | PL_retstack = 0; | |
2822 | PL_dirty = 0; | |
2823 | PL_localizing = 0; | |
949ced2d GS |
2824 | Zero(&PL_hv_fetch_ent_mh, 1, HE); |
2825 | #else | |
2826 | Zero(thr, 1, struct perl_thread); | |
2827 | #endif | |
199100c8 MB |
2828 | |
2829 | thr->oursv = sv; | |
d55594ae | 2830 | init_stacks(ARGS); |
a863c7d1 | 2831 | |
533c011a | 2832 | PL_curcop = &PL_compiling; |
199100c8 | 2833 | thr->cvcache = newHV(); |
54b9620d | 2834 | thr->threadsv = newAV(); |
a863c7d1 | 2835 | thr->specific = newAV(); |
38a03e6e MB |
2836 | thr->errsv = newSVpv("", 0); |
2837 | thr->errhv = newHV(); | |
a863c7d1 MB |
2838 | thr->flags = THRf_R_JOINABLE; |
2839 | MUTEX_INIT(&thr->mutex); | |
199100c8 | 2840 | |
d55594ae GS |
2841 | /* top_env needs to be non-zero. It points to an area |
2842 | in which longjmp() stuff is stored, as C callstack | |
2843 | info there at least is thread specific this has to | |
2844 | be per-thread. Otherwise a 'die' in a thread gives | |
2845 | that thread the C stack of last thread to do an eval {}! | |
2846 | See comments in scope.h | |
2847 | Initialize top entry (as in perl.c for main thread) | |
2848 | */ | |
533c011a NIS |
2849 | PL_start_env.je_prev = NULL; |
2850 | PL_start_env.je_ret = -1; | |
2851 | PL_start_env.je_mustcatch = TRUE; | |
2852 | PL_top_env = &PL_start_env; | |
2853 | ||
2854 | PL_in_eval = FALSE; | |
2855 | PL_restartop = 0; | |
2856 | ||
b099ddc0 GS |
2857 | PL_statname = NEWSV(66,0); |
2858 | PL_maxscream = -1; | |
2859 | PL_regcompp = FUNC_NAME_TO_PTR(pregcomp); | |
2860 | PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags); | |
2861 | PL_regindent = 0; | |
2862 | PL_reginterp_cnt = 0; | |
2863 | PL_lastscream = Nullsv; | |
2864 | PL_screamfirst = 0; | |
2865 | PL_screamnext = 0; | |
2866 | PL_reg_start_tmp = 0; | |
2867 | PL_reg_start_tmpl = 0; | |
2868 | ||
2869 | /* parent thread's data needs to be locked while we make copy */ | |
2870 | MUTEX_LOCK(&t->mutex); | |
2871 | ||
2872 | PL_curcop = t->Tcurcop; /* XXX As good a guess as any? */ | |
2873 | PL_defstash = t->Tdefstash; /* XXX maybe these should */ | |
2874 | PL_curstash = t->Tcurstash; /* always be set to main? */ | |
2875 | ||
6b88bc9c | 2876 | PL_tainted = t->Ttainted; |
84fee439 NIS |
2877 | PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */ |
2878 | PL_nrs = newSVsv(t->Tnrs); | |
2879 | PL_rs = SvREFCNT_inc(PL_nrs); | |
2880 | PL_last_in_gv = Nullgv; | |
2881 | PL_ofslen = t->Tofslen; | |
2882 | PL_ofs = savepvn(t->Tofs, PL_ofslen); | |
2883 | PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); | |
2884 | PL_chopset = t->Tchopset; | |
2885 | PL_formtarget = newSVsv(t->Tformtarget); | |
2886 | PL_bodytarget = newSVsv(t->Tbodytarget); | |
2887 | PL_toptarget = newSVsv(t->Ttoptarget); | |
533c011a | 2888 | |
54b9620d MB |
2889 | /* Initialise all per-thread SVs that the template thread used */ |
2890 | svp = AvARRAY(t->threadsv); | |
93965878 | 2891 | for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) { |
533c011a | 2892 | if (*svp && *svp != &PL_sv_undef) { |
199100c8 | 2893 | SV *sv = newSVsv(*svp); |
54b9620d | 2894 | av_store(thr->threadsv, i, sv); |
533c011a | 2895 | sv_magic(sv, 0, 0, &PL_threadsv_names[i], 1); |
8b73bbec | 2896 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
54b9620d | 2897 | "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr)); |
199100c8 MB |
2898 | } |
2899 | } | |
940cb80d | 2900 | thr->threadsvp = AvARRAY(thr->threadsv); |
199100c8 | 2901 | |
533c011a NIS |
2902 | MUTEX_LOCK(&PL_threads_mutex); |
2903 | PL_nthreads++; | |
2904 | thr->tid = ++PL_threadnum; | |
199100c8 MB |
2905 | thr->next = t->next; |
2906 | thr->prev = t; | |
2907 | t->next = thr; | |
2908 | thr->next->prev = thr; | |
533c011a | 2909 | MUTEX_UNLOCK(&PL_threads_mutex); |
a863c7d1 | 2910 | |
b099ddc0 GS |
2911 | /* done copying parent's state */ |
2912 | MUTEX_UNLOCK(&t->mutex); | |
2913 | ||
a863c7d1 MB |
2914 | #ifdef HAVE_THREAD_INTERN |
2915 | init_thread_intern(thr); | |
a863c7d1 | 2916 | #endif /* HAVE_THREAD_INTERN */ |
a863c7d1 MB |
2917 | return thr; |
2918 | } | |
11343788 | 2919 | #endif /* USE_THREADS */ |
760ac839 LW |
2920 | |
2921 | #ifdef HUGE_VAL | |
2922 | /* | |
2923 | * This hack is to force load of "huge" support from libm.a | |
2924 | * So it is in perl for (say) POSIX to use. | |
2925 | * Needed for SunOS with Sun's 'acc' for example. | |
2926 | */ | |
2927 | double | |
8ac85365 | 2928 | Perl_huge(void) |
760ac839 LW |
2929 | { |
2930 | return HUGE_VAL; | |
2931 | } | |
2932 | #endif | |
4e35701f | 2933 | |
22239a37 NIS |
2934 | #ifdef PERL_GLOBAL_STRUCT |
2935 | struct perl_vars * | |
2936 | Perl_GetVars(void) | |
2937 | { | |
533c011a | 2938 | return &PL_Vars; |
22239a37 | 2939 | } |
31fb1209 NIS |
2940 | #endif |
2941 | ||
2942 | char ** | |
2943 | get_op_names(void) | |
2944 | { | |
22c35a8c | 2945 | return PL_op_name; |
31fb1209 NIS |
2946 | } |
2947 | ||
2948 | char ** | |
2949 | get_op_descs(void) | |
2950 | { | |
22c35a8c | 2951 | return PL_op_desc; |
31fb1209 | 2952 | } |
9e6b2b00 GS |
2953 | |
2954 | char * | |
2955 | get_no_modify(void) | |
2956 | { | |
22c35a8c | 2957 | return (char*)PL_no_modify; |
9e6b2b00 GS |
2958 | } |
2959 | ||
2960 | U32 * | |
2961 | get_opargs(void) | |
2962 | { | |
22c35a8c | 2963 | return PL_opargs; |
9e6b2b00 | 2964 | } |
51aa15f3 | 2965 | |
51aa15f3 GS |
2966 | SV ** |
2967 | get_specialsv_list(void) | |
2968 | { | |
3280af22 | 2969 | return PL_specialsv_list; |
f55ee38a | 2970 | } |
dc9e4912 GS |
2971 | |
2972 | ||
2973 | MGVTBL* | |
2974 | get_vtbl(int vtbl_id) | |
2975 | { | |
2976 | MGVTBL* result = Null(MGVTBL*); | |
2977 | ||
2978 | switch(vtbl_id) { | |
2979 | case want_vtbl_sv: | |
2980 | result = &PL_vtbl_sv; | |
2981 | break; | |
2982 | case want_vtbl_env: | |
2983 | result = &PL_vtbl_env; | |
2984 | break; | |
2985 | case want_vtbl_envelem: | |
2986 | result = &PL_vtbl_envelem; | |
2987 | break; | |
2988 | case want_vtbl_sig: | |
2989 | result = &PL_vtbl_sig; | |
2990 | break; | |
2991 | case want_vtbl_sigelem: | |
2992 | result = &PL_vtbl_sigelem; | |
2993 | break; | |
2994 | case want_vtbl_pack: | |
2995 | result = &PL_vtbl_pack; | |
2996 | break; | |
2997 | case want_vtbl_packelem: | |
2998 | result = &PL_vtbl_packelem; | |
2999 | break; | |
3000 | case want_vtbl_dbline: | |
3001 | result = &PL_vtbl_dbline; | |
3002 | break; | |
3003 | case want_vtbl_isa: | |
3004 | result = &PL_vtbl_isa; | |
3005 | break; | |
3006 | case want_vtbl_isaelem: | |
3007 | result = &PL_vtbl_isaelem; | |
3008 | break; | |
3009 | case want_vtbl_arylen: | |
3010 | result = &PL_vtbl_arylen; | |
3011 | break; | |
3012 | case want_vtbl_glob: | |
3013 | result = &PL_vtbl_glob; | |
3014 | break; | |
3015 | case want_vtbl_mglob: | |
3016 | result = &PL_vtbl_mglob; | |
3017 | break; | |
3018 | case want_vtbl_nkeys: | |
3019 | result = &PL_vtbl_nkeys; | |
3020 | break; | |
3021 | case want_vtbl_taint: | |
3022 | result = &PL_vtbl_taint; | |
3023 | break; | |
3024 | case want_vtbl_substr: | |
3025 | result = &PL_vtbl_substr; | |
3026 | break; | |
3027 | case want_vtbl_vec: | |
3028 | result = &PL_vtbl_vec; | |
3029 | break; | |
3030 | case want_vtbl_pos: | |
3031 | result = &PL_vtbl_pos; | |
3032 | break; | |
3033 | case want_vtbl_bm: | |
3034 | result = &PL_vtbl_bm; | |
3035 | break; | |
3036 | case want_vtbl_fm: | |
3037 | result = &PL_vtbl_fm; | |
3038 | break; | |
3039 | case want_vtbl_uvar: | |
3040 | result = &PL_vtbl_uvar; | |
3041 | break; | |
3042 | #ifdef USE_THREADS | |
3043 | case want_vtbl_mutex: | |
3044 | result = &PL_vtbl_mutex; | |
3045 | break; | |
3046 | #endif | |
3047 | case want_vtbl_defelem: | |
3048 | result = &PL_vtbl_defelem; | |
3049 | break; | |
3050 | case want_vtbl_regexp: | |
3051 | result = &PL_vtbl_regexp; | |
3052 | break; | |
3053 | case want_vtbl_regdata: | |
3054 | result = &PL_vtbl_regdata; | |
3055 | break; | |
3056 | case want_vtbl_regdatum: | |
3057 | result = &PL_vtbl_regdatum; | |
3058 | break; | |
3059 | case want_vtbl_collxfrm: | |
3060 | result = &PL_vtbl_collxfrm; | |
3061 | break; | |
3062 | case want_vtbl_amagic: | |
3063 | result = &PL_vtbl_amagic; | |
3064 | break; | |
3065 | case want_vtbl_amagicelem: | |
3066 | result = &PL_vtbl_amagicelem; | |
3067 | break; | |
3068 | } | |
3069 | return result; | |
3070 | } | |
3071 |