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" |
31da6858 | 17 | #include "perlmem.h" |
62b28dd9 | 18 | |
6eb13c3b | 19 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
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 |
8c52afec IZ |
57 | |
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 LW |
64 | #endif |
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 |
3028581b | 90 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 | 91 | #if !(defined(I286) || defined(atarist)) |
760ac839 | 92 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
79072805 | 93 | #else |
760ac839 | 94 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
8d063cd8 LW |
95 | #endif |
96 | if (ptr != Nullch) | |
97 | return ptr; | |
7c0587c8 LW |
98 | else if (nomemok) |
99 | return Nullch; | |
8d063cd8 | 100 | else { |
760ac839 | 101 | PerlIO_puts(PerlIO_stderr(),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) |
3028581b | 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 */ |
378cc40b | 125 | if (!where) |
463ee0b2 | 126 | croak("Null realloc"); |
34de22dd LW |
127 | #ifdef DEBUGGING |
128 | if ((long)size < 0) | |
463ee0b2 | 129 | croak("panic: realloc"); |
34de22dd | 130 | #endif |
3028581b | 131 | ptr = PerlMem_realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ |
79072805 LW |
132 | |
133 | #if !(defined(I286) || defined(atarist)) | |
134 | DEBUG_m( { | |
760ac839 LW |
135 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++); |
136 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); | |
79072805 LW |
137 | } ) |
138 | #else | |
139 | DEBUG_m( { | |
760ac839 LW |
140 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++); |
141 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); | |
79072805 | 142 | } ) |
8d063cd8 | 143 | #endif |
79072805 | 144 | |
8d063cd8 LW |
145 | if (ptr != Nullch) |
146 | return ptr; | |
7c0587c8 LW |
147 | else if (nomemok) |
148 | return Nullch; | |
8d063cd8 | 149 | else { |
760ac839 | 150 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 | 151 | my_exit(1); |
4e35701f | 152 | return Nullch; |
8d063cd8 LW |
153 | } |
154 | /*NOTREACHED*/ | |
155 | } | |
156 | ||
157 | /* safe version of free */ | |
158 | ||
54310121 | 159 | Free_t |
f0f333f4 | 160 | safefree(Malloc_t where) |
8d063cd8 | 161 | { |
79072805 | 162 | #if !(defined(I286) || defined(atarist)) |
f0f333f4 | 163 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,an++)); |
79072805 | 164 | #else |
f0f333f4 | 165 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,an++)); |
8d063cd8 | 166 | #endif |
378cc40b | 167 | if (where) { |
de3bb511 | 168 | /*SUPPRESS 701*/ |
3028581b | 169 | PerlMem_free(where); |
378cc40b | 170 | } |
8d063cd8 LW |
171 | } |
172 | ||
1050c9ca | 173 | /* safe version of calloc */ |
174 | ||
bd4080b3 | 175 | Malloc_t |
f0f333f4 | 176 | safecalloc(MEM_SIZE count, MEM_SIZE size) |
1050c9ca | 177 | { |
bd4080b3 | 178 | Malloc_t ptr; |
1050c9ca | 179 | |
55497cff | 180 | #ifdef HAS_64K_LIMIT |
5f05dabc | 181 | if (size * count > 0xffff) { |
182 | PerlIO_printf(PerlIO_stderr(), | |
183 | "Allocation too large: %lx\n", size * count) FLUSH; | |
184 | my_exit(1); | |
185 | } | |
55497cff | 186 | #endif /* HAS_64K_LIMIT */ |
1050c9ca | 187 | #ifdef DEBUGGING |
188 | if ((long)size < 0 || (long)count < 0) | |
189 | croak("panic: calloc"); | |
190 | #endif | |
0b7c1c42 | 191 | size *= count; |
3028581b | 192 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
1050c9ca | 193 | #if !(defined(I286) || defined(atarist)) |
fb73857a | 194 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca | 195 | #else |
fb73857a | 196 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca | 197 | #endif |
1050c9ca | 198 | if (ptr != Nullch) { |
199 | memset((void*)ptr, 0, size); | |
200 | return ptr; | |
201 | } | |
202 | else if (nomemok) | |
203 | return Nullch; | |
204 | else { | |
760ac839 | 205 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
1050c9ca | 206 | my_exit(1); |
4e35701f | 207 | return Nullch; |
1050c9ca | 208 | } |
209 | /*NOTREACHED*/ | |
210 | } | |
211 | ||
55497cff | 212 | #endif /* !MYMALLOC */ |
de3bb511 | 213 | |
a687059c LW |
214 | #ifdef LEAKTEST |
215 | ||
8c52afec IZ |
216 | struct mem_test_strut { |
217 | union { | |
218 | long type; | |
219 | char c[2]; | |
220 | } u; | |
221 | long size; | |
222 | }; | |
223 | ||
224 | # define ALIGN sizeof(struct mem_test_strut) | |
225 | ||
226 | # define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size) | |
227 | # define typeof_chunk(ch) \ | |
228 | (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100) | |
229 | # define set_typeof_chunk(ch,t) \ | |
230 | (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100) | |
231 | #define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \ | |
232 | ? MAXYCOUNT - 1 \ | |
233 | : ( (size) > 40 \ | |
234 | ? ((size) - 1)/8 + 5 \ | |
235 | : ((size) - 1)/4)) | |
8d063cd8 | 236 | |
bd4080b3 | 237 | Malloc_t |
f0f333f4 | 238 | safexmalloc(I32 x, MEM_SIZE size) |
8d063cd8 | 239 | { |
8c52afec | 240 | register char* where = (char*)safemalloc(size + ALIGN); |
8d063cd8 | 241 | |
8c52afec IZ |
242 | xcount[x] += size; |
243 | xycount[x][SIZE_TO_Y(size)]++; | |
244 | set_typeof_chunk(where, x); | |
245 | sizeof_chunk(where) = size; | |
246 | return (Malloc_t)(where + ALIGN); | |
8d063cd8 | 247 | } |
8d063cd8 | 248 | |
bd4080b3 | 249 | Malloc_t |
8c52afec | 250 | safexrealloc(Malloc_t wh, MEM_SIZE size) |
a687059c | 251 | { |
8c52afec IZ |
252 | char *where = (char*)wh; |
253 | ||
254 | if (!wh) | |
255 | return safexmalloc(0,size); | |
256 | ||
257 | { | |
258 | MEM_SIZE old = sizeof_chunk(where - ALIGN); | |
259 | int t = typeof_chunk(where - ALIGN); | |
260 | register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN); | |
261 | ||
262 | xycount[t][SIZE_TO_Y(old)]--; | |
263 | xycount[t][SIZE_TO_Y(size)]++; | |
264 | xcount[t] += size - old; | |
265 | sizeof_chunk(new) = size; | |
266 | return (Malloc_t)(new + ALIGN); | |
267 | } | |
a687059c LW |
268 | } |
269 | ||
270 | void | |
8c52afec | 271 | safexfree(Malloc_t wh) |
a687059c | 272 | { |
79072805 | 273 | I32 x; |
8c52afec IZ |
274 | char *where = (char*)wh; |
275 | MEM_SIZE size; | |
276 | ||
a687059c LW |
277 | if (!where) |
278 | return; | |
279 | where -= ALIGN; | |
8c52afec | 280 | size = sizeof_chunk(where); |
a687059c | 281 | x = where[0] + 100 * where[1]; |
8c52afec IZ |
282 | xcount[x] -= size; |
283 | xycount[x][SIZE_TO_Y(size)]--; | |
a687059c LW |
284 | safefree(where); |
285 | } | |
286 | ||
bd4080b3 | 287 | Malloc_t |
f0f333f4 | 288 | safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size) |
1050c9ca | 289 | { |
8c52afec IZ |
290 | register char * where = (char*)safexmalloc(x, size * count + ALIGN); |
291 | xcount[x] += size; | |
292 | xycount[x][SIZE_TO_Y(size)]++; | |
293 | memset((void*)(where + ALIGN), 0, size * count); | |
294 | set_typeof_chunk(where, x); | |
295 | sizeof_chunk(where) = size; | |
296 | return (Malloc_t)(where + ALIGN); | |
1050c9ca | 297 | } |
298 | ||
7c0587c8 | 299 | static void |
8c52afec | 300 | xstat(int flag) |
8d063cd8 | 301 | { |
8c52afec IZ |
302 | register I32 i, j, total = 0; |
303 | I32 subtot[MAXYCOUNT]; | |
8d063cd8 | 304 | |
8c52afec IZ |
305 | for (j = 0; j < MAXYCOUNT; j++) { |
306 | subtot[j] = 0; | |
307 | } | |
308 | ||
309 | 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 | 310 | for (i = 0; i < MAXXCOUNT; i++) { |
8c52afec IZ |
311 | total += xcount[i]; |
312 | for (j = 0; j < MAXYCOUNT; j++) { | |
313 | subtot[j] += xycount[i][j]; | |
314 | } | |
315 | if (flag == 0 | |
316 | ? xcount[i] /* Have something */ | |
317 | : (flag == 2 | |
318 | ? xcount[i] != lastxcount[i] /* Changed */ | |
319 | : xcount[i] > lastxcount[i])) { /* Growed */ | |
320 | PerlIO_printf(PerlIO_stderr(),"%2d %02d %7ld ", i / 100, i % 100, | |
321 | flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]); | |
a687059c | 322 | lastxcount[i] = xcount[i]; |
8c52afec IZ |
323 | for (j = 0; j < MAXYCOUNT; j++) { |
324 | if ( flag == 0 | |
325 | ? xycount[i][j] /* Have something */ | |
326 | : (flag == 2 | |
327 | ? xycount[i][j] != lastxycount[i][j] /* Changed */ | |
328 | : xycount[i][j] > lastxycount[i][j])) { /* Growed */ | |
329 | PerlIO_printf(PerlIO_stderr(),"%3ld ", | |
330 | flag == 2 | |
331 | ? xycount[i][j] - lastxycount[i][j] | |
332 | : xycount[i][j]); | |
333 | lastxycount[i][j] = xycount[i][j]; | |
334 | } else { | |
335 | PerlIO_printf(PerlIO_stderr(), " . ", xycount[i][j]); | |
336 | } | |
337 | } | |
338 | PerlIO_printf(PerlIO_stderr(), "\n"); | |
339 | } | |
340 | } | |
341 | if (flag != 2) { | |
342 | PerlIO_printf(PerlIO_stderr(), "Total %7ld ", total); | |
343 | for (j = 0; j < MAXYCOUNT; j++) { | |
344 | if (subtot[j]) { | |
345 | PerlIO_printf(PerlIO_stderr(), "%3ld ", subtot[j]); | |
346 | } else { | |
347 | PerlIO_printf(PerlIO_stderr(), " . "); | |
348 | } | |
8d063cd8 | 349 | } |
8c52afec | 350 | PerlIO_printf(PerlIO_stderr(), "\n"); |
8d063cd8 | 351 | } |
8d063cd8 | 352 | } |
a687059c LW |
353 | |
354 | #endif /* LEAKTEST */ | |
8d063cd8 LW |
355 | |
356 | /* copy a string up to some (non-backslashed) delimiter, if any */ | |
357 | ||
358 | char * | |
8ac85365 | 359 | delimcpy(register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen) |
8d063cd8 | 360 | { |
fc36a67e | 361 | register I32 tolen; |
362 | for (tolen = 0; from < fromend; from++, tolen++) { | |
378cc40b LW |
363 | if (*from == '\\') { |
364 | if (from[1] == delim) | |
365 | from++; | |
fc36a67e | 366 | else { |
367 | if (to < toend) | |
368 | *to++ = *from; | |
369 | tolen++; | |
370 | from++; | |
371 | } | |
378cc40b | 372 | } |
bedebaa5 | 373 | else if (*from == delim) |
8d063cd8 | 374 | break; |
fc36a67e | 375 | if (to < toend) |
376 | *to++ = *from; | |
8d063cd8 | 377 | } |
bedebaa5 CS |
378 | if (to < toend) |
379 | *to = '\0'; | |
fc36a67e | 380 | *retlen = tolen; |
8d063cd8 LW |
381 | return from; |
382 | } | |
383 | ||
384 | /* return ptr to little string in big string, NULL if not found */ | |
378cc40b | 385 | /* This routine was donated by Corey Satten. */ |
8d063cd8 LW |
386 | |
387 | char * | |
8ac85365 | 388 | instr(register char *big, register char *little) |
378cc40b LW |
389 | { |
390 | register char *s, *x; | |
79072805 | 391 | register I32 first; |
378cc40b | 392 | |
a687059c LW |
393 | if (!little) |
394 | return big; | |
395 | first = *little++; | |
378cc40b LW |
396 | if (!first) |
397 | return big; | |
398 | while (*big) { | |
399 | if (*big++ != first) | |
400 | continue; | |
401 | for (x=big,s=little; *s; /**/ ) { | |
402 | if (!*x) | |
403 | return Nullch; | |
404 | if (*s++ != *x++) { | |
405 | s--; | |
406 | break; | |
407 | } | |
408 | } | |
409 | if (!*s) | |
410 | return big-1; | |
411 | } | |
412 | return Nullch; | |
413 | } | |
8d063cd8 | 414 | |
a687059c LW |
415 | /* same as instr but allow embedded nulls */ |
416 | ||
417 | char * | |
8ac85365 | 418 | ninstr(register char *big, register char *bigend, char *little, char *lend) |
8d063cd8 | 419 | { |
a687059c | 420 | register char *s, *x; |
79072805 | 421 | register I32 first = *little; |
a687059c | 422 | register char *littleend = lend; |
378cc40b | 423 | |
a0d0e21e | 424 | if (!first && little >= littleend) |
a687059c | 425 | return big; |
de3bb511 LW |
426 | if (bigend - big < littleend - little) |
427 | return Nullch; | |
a687059c LW |
428 | bigend -= littleend - little++; |
429 | while (big <= bigend) { | |
430 | if (*big++ != first) | |
431 | continue; | |
432 | for (x=big,s=little; s < littleend; /**/ ) { | |
433 | if (*s++ != *x++) { | |
434 | s--; | |
435 | break; | |
436 | } | |
437 | } | |
438 | if (s >= littleend) | |
439 | return big-1; | |
378cc40b | 440 | } |
a687059c LW |
441 | return Nullch; |
442 | } | |
443 | ||
444 | /* reverse of the above--find last substring */ | |
445 | ||
446 | char * | |
8ac85365 | 447 | rninstr(register char *big, char *bigend, char *little, char *lend) |
a687059c LW |
448 | { |
449 | register char *bigbeg; | |
450 | register char *s, *x; | |
79072805 | 451 | register I32 first = *little; |
a687059c LW |
452 | register char *littleend = lend; |
453 | ||
a0d0e21e | 454 | if (!first && little >= littleend) |
a687059c LW |
455 | return bigend; |
456 | bigbeg = big; | |
457 | big = bigend - (littleend - little++); | |
458 | while (big >= bigbeg) { | |
459 | if (*big-- != first) | |
460 | continue; | |
461 | for (x=big+2,s=little; s < littleend; /**/ ) { | |
462 | if (*s++ != *x++) { | |
463 | s--; | |
464 | break; | |
465 | } | |
466 | } | |
467 | if (s >= littleend) | |
468 | return big+1; | |
378cc40b | 469 | } |
a687059c | 470 | return Nullch; |
378cc40b | 471 | } |
a687059c | 472 | |
bbce6d69 | 473 | /* |
474 | * Set up for a new ctype locale. | |
475 | */ | |
55497cff | 476 | void |
8ac85365 | 477 | perl_new_ctype(char *newctype) |
ef7eada9 | 478 | { |
36477c24 | 479 | #ifdef USE_LOCALE_CTYPE |
480 | ||
bbce6d69 | 481 | int i; |
ef7eada9 | 482 | |
bbce6d69 | 483 | for (i = 0; i < 256; i++) { |
484 | if (isUPPER_LC(i)) | |
485 | fold_locale[i] = toLOWER_LC(i); | |
486 | else if (isLOWER_LC(i)) | |
487 | fold_locale[i] = toUPPER_LC(i); | |
488 | else | |
489 | fold_locale[i] = i; | |
490 | } | |
bbce6d69 | 491 | |
36477c24 | 492 | #endif /* USE_LOCALE_CTYPE */ |
493 | } | |
bbce6d69 | 494 | |
495 | /* | |
496 | * Set up for a new collation locale. | |
497 | */ | |
498 | void | |
8ac85365 | 499 | perl_new_collate(char *newcoll) |
bbce6d69 | 500 | { |
36477c24 | 501 | #ifdef USE_LOCALE_COLLATE |
502 | ||
bbce6d69 | 503 | if (! newcoll) { |
504 | if (collation_name) { | |
505 | ++collation_ix; | |
506 | Safefree(collation_name); | |
507 | collation_name = NULL; | |
508 | collation_standard = TRUE; | |
bbce6d69 | 509 | collxfrm_base = 0; |
510 | collxfrm_mult = 2; | |
bbce6d69 | 511 | } |
512 | return; | |
513 | } | |
514 | ||
515 | if (! collation_name || strNE(collation_name, newcoll)) { | |
516 | ++collation_ix; | |
517 | Safefree(collation_name); | |
518 | collation_name = savepv(newcoll); | |
ff68c719 | 519 | collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); |
bbce6d69 | 520 | |
bbce6d69 | 521 | { |
522 | /* 2: at most so many chars ('a', 'b'). */ | |
523 | /* 50: surely no system expands a char more. */ | |
524 | #define XFRMBUFSIZE (2 * 50) | |
525 | char xbuf[XFRMBUFSIZE]; | |
526 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); | |
527 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); | |
528 | SSize_t mult = fb - fa; | |
529 | if (mult < 1) | |
530 | croak("strxfrm() gets absurd"); | |
531 | collxfrm_base = (fa > mult) ? (fa - mult) : 0; | |
532 | collxfrm_mult = mult; | |
533 | } | |
bbce6d69 | 534 | } |
bbce6d69 | 535 | |
36477c24 | 536 | #endif /* USE_LOCALE_COLLATE */ |
537 | } | |
bbce6d69 | 538 | |
539 | /* | |
540 | * Set up for a new numeric locale. | |
541 | */ | |
542 | void | |
8ac85365 | 543 | perl_new_numeric(char *newnum) |
bbce6d69 | 544 | { |
36477c24 | 545 | #ifdef USE_LOCALE_NUMERIC |
546 | ||
bbce6d69 | 547 | if (! newnum) { |
548 | if (numeric_name) { | |
549 | Safefree(numeric_name); | |
550 | numeric_name = NULL; | |
551 | numeric_standard = TRUE; | |
552 | numeric_local = TRUE; | |
553 | } | |
554 | return; | |
555 | } | |
556 | ||
557 | if (! numeric_name || strNE(numeric_name, newnum)) { | |
558 | Safefree(numeric_name); | |
559 | numeric_name = savepv(newnum); | |
ff68c719 | 560 | numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
bbce6d69 | 561 | numeric_local = TRUE; |
562 | } | |
36477c24 | 563 | |
564 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 565 | } |
566 | ||
567 | void | |
8ac85365 | 568 | perl_set_numeric_standard(void) |
bbce6d69 | 569 | { |
5f05dabc | 570 | #ifdef USE_LOCALE_NUMERIC |
571 | ||
bbce6d69 | 572 | if (! numeric_standard) { |
573 | setlocale(LC_NUMERIC, "C"); | |
574 | numeric_standard = TRUE; | |
575 | numeric_local = FALSE; | |
576 | } | |
5f05dabc | 577 | |
578 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 579 | } |
580 | ||
581 | void | |
8ac85365 | 582 | perl_set_numeric_local(void) |
bbce6d69 | 583 | { |
5f05dabc | 584 | #ifdef USE_LOCALE_NUMERIC |
585 | ||
bbce6d69 | 586 | if (! numeric_local) { |
587 | setlocale(LC_NUMERIC, numeric_name); | |
588 | numeric_standard = FALSE; | |
589 | numeric_local = TRUE; | |
590 | } | |
bbce6d69 | 591 | |
36477c24 | 592 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 593 | } |
36477c24 | 594 | |
bbce6d69 | 595 | |
36477c24 | 596 | /* |
597 | * Initialize locale awareness. | |
598 | */ | |
f0c5b223 | 599 | int |
8ac85365 | 600 | perl_init_i18nl10n(int printwarn) |
f0c5b223 TB |
601 | { |
602 | int ok = 1; | |
603 | /* returns | |
604 | * 1 = set ok or not applicable, | |
605 | * 0 = fallback to C locale, | |
606 | * -1 = fallback to C locale failed | |
607 | */ | |
bbce6d69 | 608 | |
36477c24 | 609 | #ifdef USE_LOCALE |
bbce6d69 | 610 | |
36477c24 | 611 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 612 | char *curctype = NULL; |
36477c24 | 613 | #endif /* USE_LOCALE_CTYPE */ |
614 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 615 | char *curcoll = NULL; |
36477c24 | 616 | #endif /* USE_LOCALE_COLLATE */ |
617 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 618 | char *curnum = NULL; |
36477c24 | 619 | #endif /* USE_LOCALE_NUMERIC */ |
5fd9e9a4 GS |
620 | char *lc_all = PerlEnv_getenv("LC_ALL"); |
621 | char *lang = PerlEnv_getenv("LANG"); | |
bbce6d69 | 622 | bool setlocale_failure = FALSE; |
f0c5b223 | 623 | |
02b32252 CS |
624 | #ifdef LOCALE_ENVIRON_REQUIRED |
625 | ||
626 | /* | |
627 | * Ultrix setlocale(..., "") fails if there are no environment | |
628 | * variables from which to get a locale name. | |
629 | */ | |
630 | ||
631 | bool done = FALSE; | |
632 | ||
633 | #ifdef LC_ALL | |
634 | if (lang) { | |
635 | if (setlocale(LC_ALL, "")) | |
636 | done = TRUE; | |
637 | else | |
638 | setlocale_failure = TRUE; | |
639 | } | |
640 | if (!setlocale_failure) | |
641 | #endif /* LC_ALL */ | |
642 | { | |
643 | #ifdef USE_LOCALE_CTYPE | |
644 | if (! (curctype = setlocale(LC_CTYPE, | |
5fd9e9a4 | 645 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) |
02b32252 CS |
646 | ? "" : Nullch))) |
647 | setlocale_failure = TRUE; | |
648 | #endif /* USE_LOCALE_CTYPE */ | |
649 | #ifdef USE_LOCALE_COLLATE | |
650 | if (! (curcoll = setlocale(LC_COLLATE, | |
5fd9e9a4 | 651 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) |
02b32252 CS |
652 | ? "" : Nullch))) |
653 | setlocale_failure = TRUE; | |
654 | #endif /* USE_LOCALE_COLLATE */ | |
655 | #ifdef USE_LOCALE_NUMERIC | |
656 | if (! (curnum = setlocale(LC_NUMERIC, | |
5fd9e9a4 | 657 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) |
02b32252 CS |
658 | ? "" : Nullch))) |
659 | setlocale_failure = TRUE; | |
660 | #endif /* USE_LOCALE_NUMERIC */ | |
661 | } | |
662 | ||
663 | #else /* !LOCALE_ENVIRON_REQUIRED */ | |
664 | ||
bbce6d69 | 665 | #ifdef LC_ALL |
5f05dabc | 666 | |
bbce6d69 | 667 | if (! setlocale(LC_ALL, "")) |
668 | setlocale_failure = TRUE; | |
5f05dabc | 669 | else { |
670 | #ifdef USE_LOCALE_CTYPE | |
671 | curctype = setlocale(LC_CTYPE, Nullch); | |
672 | #endif /* USE_LOCALE_CTYPE */ | |
673 | #ifdef USE_LOCALE_COLLATE | |
674 | curcoll = setlocale(LC_COLLATE, Nullch); | |
675 | #endif /* USE_LOCALE_COLLATE */ | |
676 | #ifdef USE_LOCALE_NUMERIC | |
677 | curnum = setlocale(LC_NUMERIC, Nullch); | |
678 | #endif /* USE_LOCALE_NUMERIC */ | |
679 | } | |
680 | ||
681 | #else /* !LC_ALL */ | |
bbce6d69 | 682 | |
36477c24 | 683 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 684 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
bbce6d69 | 685 | setlocale_failure = TRUE; |
36477c24 | 686 | #endif /* USE_LOCALE_CTYPE */ |
687 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 688 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
bbce6d69 | 689 | setlocale_failure = TRUE; |
36477c24 | 690 | #endif /* USE_LOCALE_COLLATE */ |
691 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 692 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
bbce6d69 | 693 | setlocale_failure = TRUE; |
36477c24 | 694 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 695 | |
5f05dabc | 696 | #endif /* LC_ALL */ |
697 | ||
02b32252 CS |
698 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
699 | ||
5f05dabc | 700 | if (setlocale_failure) { |
701 | char *p; | |
702 | bool locwarn = (printwarn > 1 || | |
703 | printwarn && | |
5fd9e9a4 | 704 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a | 705 | |
5f05dabc | 706 | if (locwarn) { |
707 | #ifdef LC_ALL | |
708 | ||
709 | PerlIO_printf(PerlIO_stderr(), | |
710 | "perl: warning: Setting locale failed.\n"); | |
711 | ||
712 | #else /* !LC_ALL */ | |
713 | ||
ef7eada9 | 714 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 715 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 | 716 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 717 | if (! curctype) |
5f05dabc | 718 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 | 719 | #endif /* USE_LOCALE_CTYPE */ |
720 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 721 | if (! curcoll) |
5f05dabc | 722 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 | 723 | #endif /* USE_LOCALE_COLLATE */ |
724 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 725 | if (! curnum) |
5f05dabc | 726 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 | 727 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 728 | PerlIO_printf(PerlIO_stderr(), "\n"); |
729 | ||
5f05dabc | 730 | #endif /* LC_ALL */ |
731 | ||
760ac839 | 732 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 733 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 JH |
734 | |
735 | PerlIO_printf(PerlIO_stderr(), | |
bbce6d69 | 736 | "\tLC_ALL = %c%s%c,\n", |
737 | lc_all ? '"' : '(', | |
738 | lc_all ? lc_all : "unset", | |
739 | lc_all ? '"' : ')'); | |
5f05dabc | 740 | |
741 | { | |
742 | char **e; | |
743 | for (e = environ; *e; e++) { | |
744 | if (strnEQ(*e, "LC_", 3) | |
745 | && strnNE(*e, "LC_ALL=", 7) | |
746 | && (p = strchr(*e, '='))) | |
747 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", | |
fb73857a | 748 | (int)(p - *e), *e, p + 1); |
5f05dabc | 749 | } |
750 | } | |
751 | ||
ef7eada9 | 752 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 753 | "\tLANG = %c%s%c\n", |
5f05dabc | 754 | lang ? '"' : '(', |
bbce6d69 | 755 | lang ? lang : "unset", |
756 | lang ? '"' : ')'); | |
ef7eada9 | 757 | |
bbce6d69 | 758 | PerlIO_printf(PerlIO_stderr(), |
759 | " are supported and installed on your system.\n"); | |
5f05dabc | 760 | } |
ef7eada9 | 761 | |
5f05dabc | 762 | #ifdef LC_ALL |
763 | ||
764 | if (setlocale(LC_ALL, "C")) { | |
765 | if (locwarn) | |
766 | PerlIO_printf(PerlIO_stderr(), | |
767 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
bbce6d69 | 768 | ok = 0; |
ef7eada9 | 769 | } |
5f05dabc | 770 | else { |
771 | if (locwarn) | |
772 | PerlIO_printf(PerlIO_stderr(), | |
773 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
774 | ok = -1; | |
775 | } | |
bbce6d69 | 776 | |
5f05dabc | 777 | #else /* ! LC_ALL */ |
778 | ||
779 | if (0 | |
36477c24 | 780 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 781 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 | 782 | #endif /* USE_LOCALE_CTYPE */ |
783 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 784 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 | 785 | #endif /* USE_LOCALE_COLLATE */ |
786 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 787 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 | 788 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 789 | ) |
790 | { | |
791 | if (locwarn) | |
bbce6d69 | 792 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc | 793 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
794 | ok = -1; | |
bbce6d69 | 795 | } |
5f05dabc | 796 | |
bbce6d69 | 797 | #endif /* ! LC_ALL */ |
5f05dabc | 798 | |
799 | #ifdef USE_LOCALE_CTYPE | |
800 | curctype = setlocale(LC_CTYPE, Nullch); | |
801 | #endif /* USE_LOCALE_CTYPE */ | |
802 | #ifdef USE_LOCALE_COLLATE | |
803 | curcoll = setlocale(LC_COLLATE, Nullch); | |
804 | #endif /* USE_LOCALE_COLLATE */ | |
805 | #ifdef USE_LOCALE_NUMERIC | |
806 | curnum = setlocale(LC_NUMERIC, Nullch); | |
807 | #endif /* USE_LOCALE_NUMERIC */ | |
ef7eada9 JH |
808 | } |
809 | ||
36477c24 | 810 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 811 | perl_new_ctype(curctype); |
36477c24 | 812 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 | 813 | |
36477c24 | 814 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 | 815 | perl_new_collate(curcoll); |
36477c24 | 816 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 817 | |
36477c24 | 818 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 | 819 | perl_new_numeric(curnum); |
36477c24 | 820 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 | 821 | |
36477c24 | 822 | #endif /* USE_LOCALE */ |
ef7eada9 | 823 | |
f0c5b223 TB |
824 | return ok; |
825 | } | |
826 | ||
bbce6d69 | 827 | /* Backwards compatibility. */ |
828 | int | |
8ac85365 | 829 | perl_init_i18nl14n(int printwarn) |
bbce6d69 | 830 | { |
5f05dabc | 831 | return perl_init_i18nl10n(printwarn); |
bbce6d69 | 832 | } |
ef7eada9 | 833 | |
36477c24 | 834 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 | 835 | |
bbce6d69 | 836 | /* |
837 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
838 | * differences. First, it handles embedded NULs. Second, it allocates | |
839 | * a bit more memory than needed for the transformed data itself. | |
840 | * The real transformed data begins at offset sizeof(collationix). | |
841 | * Please see sv_collxfrm() to see how this is used. | |
842 | */ | |
843 | char * | |
8ac85365 | 844 | mem_collxfrm(const char *s, STRLEN len, STRLEN *xlen) |
bbce6d69 | 845 | { |
846 | char *xbuf; | |
847 | STRLEN xalloc, xin, xout; | |
848 | ||
849 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ | |
850 | /* the +1 is for the terminating NUL. */ | |
851 | ||
852 | xalloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1; | |
853 | New(171, xbuf, xalloc, char); | |
854 | if (! xbuf) | |
855 | goto bad; | |
856 | ||
857 | *(U32*)xbuf = collation_ix; | |
858 | xout = sizeof(collation_ix); | |
859 | for (xin = 0; xin < len; ) { | |
860 | SSize_t xused; | |
861 | ||
862 | for (;;) { | |
863 | xused = strxfrm(xbuf + xout, s + xin, xalloc - xout); | |
864 | if (xused == -1) | |
865 | goto bad; | |
866 | if (xused < xalloc - xout) | |
867 | break; | |
868 | xalloc = (2 * xalloc) + 1; | |
869 | Renew(xbuf, xalloc, char); | |
870 | if (! xbuf) | |
871 | goto bad; | |
872 | } | |
ef7eada9 | 873 | |
bbce6d69 | 874 | xin += strlen(s + xin) + 1; |
875 | xout += xused; | |
876 | ||
877 | /* Embedded NULs are understood but silently skipped | |
878 | * because they make no sense in locale collation. */ | |
879 | } | |
ef7eada9 | 880 | |
bbce6d69 | 881 | xbuf[xout] = '\0'; |
882 | *xlen = xout - sizeof(collation_ix); | |
883 | return xbuf; | |
884 | ||
885 | bad: | |
886 | Safefree(xbuf); | |
887 | *xlen = 0; | |
888 | return NULL; | |
ef7eada9 JH |
889 | } |
890 | ||
36477c24 | 891 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 892 | |
378cc40b | 893 | void |
2779dcf1 | 894 | fbm_compile(SV *sv, U32 flags /* not used yet */) |
378cc40b | 895 | { |
a687059c LW |
896 | register unsigned char *s; |
897 | register unsigned char *table; | |
79072805 LW |
898 | register U32 i; |
899 | register U32 len = SvCUR(sv); | |
900 | I32 rarest = 0; | |
901 | U32 frequency = 256; | |
902 | ||
c277df42 IZ |
903 | sv_upgrade(sv, SVt_PVBM); |
904 | if (len > 255 || len == 0) /* TAIL might be on on a zero-length string. */ | |
748a9306 | 905 | return; /* can't have offsets that big */ |
02128f11 IZ |
906 | if (len > 2) { |
907 | Sv_Grow(sv,len + 258); | |
908 | table = (unsigned char*)(SvPVX(sv) + len + 1); | |
909 | s = table - 2; | |
910 | for (i = 0; i < 256; i++) { | |
911 | table[i] = len; | |
912 | } | |
913 | i = 0; | |
914 | while (s >= (unsigned char*)(SvPVX(sv))) | |
915 | { | |
916 | if (table[*s] == len) | |
917 | table[*s] = i; | |
918 | s--,i++; | |
919 | } | |
378cc40b | 920 | } |
bbce6d69 | 921 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 | 922 | SvVALID_on(sv); |
378cc40b | 923 | |
463ee0b2 | 924 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 | 925 | for (i = 0; i < len; i++) { |
926 | if (freq[s[i]] < frequency) { | |
927 | rarest = i; | |
928 | frequency = freq[s[i]]; | |
378cc40b LW |
929 | } |
930 | } | |
79072805 LW |
931 | BmRARE(sv) = s[rarest]; |
932 | BmPREVIOUS(sv) = rarest; | |
760ac839 | 933 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b LW |
934 | } |
935 | ||
378cc40b | 936 | char * |
8ac85365 | 937 | fbm_instr(unsigned char *big, register unsigned char *bigend, SV *littlestr) |
378cc40b | 938 | { |
a687059c | 939 | register unsigned char *s; |
79072805 LW |
940 | register I32 tmp; |
941 | register I32 littlelen; | |
a687059c LW |
942 | register unsigned char *little; |
943 | register unsigned char *table; | |
944 | register unsigned char *olds; | |
945 | register unsigned char *oldlittle; | |
378cc40b | 946 | |
79072805 | 947 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e LW |
948 | STRLEN len; |
949 | char *l = SvPV(littlestr,len); | |
c277df42 | 950 | if (!len) { |
02128f11 IZ |
951 | if (SvTAIL(littlestr)) { /* Can be only 0-len constant |
952 | substr => we can ignore SvVALID */ | |
953 | if (multiline) { | |
954 | char *t = "\n"; | |
3fe6f2dc MB |
955 | if ((s = (unsigned char*)ninstr((char*)big, (char*)bigend, |
956 | t, t + len))) { | |
957 | return (char*)s; | |
958 | } | |
02128f11 | 959 | } |
c277df42 | 960 | if (bigend > big && bigend[-1] == '\n') |
161b471a | 961 | return (char *)(bigend - 1); |
c277df42 | 962 | else |
161b471a | 963 | return (char *) bigend; |
c277df42 | 964 | } |
d48672a2 | 965 | return (char*)big; |
c277df42 | 966 | } |
a0d0e21e | 967 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 | 968 | } |
378cc40b | 969 | |
79072805 LW |
970 | littlelen = SvCUR(littlestr); |
971 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ | |
0f85fab0 LW |
972 | if (littlelen > bigend - big) |
973 | return Nullch; | |
463ee0b2 | 974 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 | 975 | s = bigend - littlelen; |
02128f11 IZ |
976 | if (s > big |
977 | && bigend[-1] == '\n' | |
978 | && s[-1] == *little && memEQ((char*)s - 1,(char*)little,littlelen)) | |
979 | return (char*)s - 1; /* how sweet it is */ | |
980 | else if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) | |
bbce6d69 | 981 | return (char*)s; /* how sweet it is */ |
02128f11 IZ |
982 | return Nullch; |
983 | } | |
984 | if (littlelen <= 2) { | |
985 | unsigned char c1 = (unsigned char)SvPVX(littlestr)[0]; | |
986 | unsigned char c2 = (unsigned char)SvPVX(littlestr)[1]; | |
987 | /* This may do extra comparisons if littlelen == 2, but this | |
988 | should be hidden in the noise since we do less indirection. */ | |
989 | ||
990 | s = big; | |
991 | bigend -= littlelen; | |
992 | while (s <= bigend) { | |
993 | if (s[0] == c1 | |
994 | && (littlelen == 1 || s[1] == c2) | |
995 | && (!SvTAIL(littlestr) | |
996 | || s == bigend | |
997 | || s[littlelen] == '\n')) /* Automatically multiline */ | |
3fe6f2dc MB |
998 | { |
999 | return (char*)s; | |
1000 | } | |
02128f11 | 1001 | s++; |
a687059c | 1002 | } |
bbce6d69 | 1003 | return Nullch; |
a687059c | 1004 | } |
463ee0b2 | 1005 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 LW |
1006 | if (--littlelen >= bigend - big) |
1007 | return Nullch; | |
1008 | s = big + littlelen; | |
a687059c | 1009 | oldlittle = little = table - 2; |
bbce6d69 | 1010 | if (s < bigend) { |
1011 | top2: | |
1012 | /*SUPPRESS 560*/ | |
1013 | if (tmp = table[*s]) { | |
62b28dd9 | 1014 | #ifdef POINTERRIGOR |
bbce6d69 | 1015 | if (bigend - s > tmp) { |
1016 | s += tmp; | |
1017 | goto top2; | |
1018 | } | |
62b28dd9 | 1019 | #else |
bbce6d69 | 1020 | if ((s += tmp) < bigend) |
1021 | goto top2; | |
62b28dd9 | 1022 | #endif |
bbce6d69 | 1023 | return Nullch; |
a687059c | 1024 | } |
bbce6d69 | 1025 | else { |
1026 | tmp = littlelen; /* less expensive than calling strncmp() */ | |
1027 | olds = s; | |
1028 | while (tmp--) { | |
1029 | if (*--s == *--little) | |
1030 | continue; | |
c277df42 | 1031 | differ: |
bbce6d69 | 1032 | s = olds + 1; /* here we pay the price for failure */ |
1033 | little = oldlittle; | |
1034 | if (s < bigend) /* fake up continue to outer loop */ | |
62b28dd9 | 1035 | goto top2; |
62b28dd9 | 1036 | return Nullch; |
a687059c | 1037 | } |
c277df42 IZ |
1038 | if (SvTAIL(littlestr) /* automatically multiline */ |
1039 | && olds + 1 != bigend | |
1040 | && olds[1] != '\n') | |
1041 | goto differ; | |
bbce6d69 | 1042 | return (char *)s; |
378cc40b LW |
1043 | } |
1044 | } | |
1045 | return Nullch; | |
1046 | } | |
1047 | ||
c277df42 IZ |
1048 | /* start_shift, end_shift are positive quantities which give offsets |
1049 | of ends of some substring of bigstr. | |
1050 | If `last' we want the last occurence. | |
1051 | old_posp is the way of communication between consequent calls if | |
1052 | the next call needs to find the . | |
1053 | The initial *old_posp should be -1. | |
1054 | Note that we do not take into account SvTAIL, so it may give wrong | |
1055 | positives if _ALL flag is set. | |
1056 | */ | |
1057 | ||
378cc40b | 1058 | char * |
c277df42 | 1059 | screaminstr(SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last) |
378cc40b | 1060 | { |
a687059c LW |
1061 | register unsigned char *s, *x; |
1062 | register unsigned char *big; | |
79072805 LW |
1063 | register I32 pos; |
1064 | register I32 previous; | |
1065 | register I32 first; | |
a687059c | 1066 | register unsigned char *little; |
c277df42 | 1067 | register I32 stop_pos; |
a687059c | 1068 | register unsigned char *littleend; |
c277df42 | 1069 | I32 found = 0; |
378cc40b | 1070 | |
c277df42 IZ |
1071 | if (*old_posp == -1 |
1072 | ? (pos = screamfirst[BmRARE(littlestr)]) < 0 | |
1073 | : (((pos = *old_posp), pos += screamnext[pos]) == 0)) | |
378cc40b | 1074 | return Nullch; |
463ee0b2 | 1075 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 | 1076 | littleend = little + SvCUR(littlestr); |
378cc40b | 1077 | first = *little++; |
c277df42 | 1078 | /* The value of pos we can start at: */ |
79072805 | 1079 | previous = BmPREVIOUS(littlestr); |
463ee0b2 | 1080 | big = (unsigned char *)(SvPVX(bigstr)); |
c277df42 IZ |
1081 | /* The value of pos we can stop at: */ |
1082 | stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous); | |
1083 | if (previous + start_shift > stop_pos) return Nullch; | |
1084 | while (pos < previous + start_shift) { | |
378cc40b LW |
1085 | if (!(pos += screamnext[pos])) |
1086 | return Nullch; | |
1087 | } | |
de3bb511 | 1088 | #ifdef POINTERRIGOR |
bbce6d69 | 1089 | do { |
c277df42 | 1090 | if (pos >= stop_pos) return Nullch; |
bbce6d69 | 1091 | if (big[pos-previous] != first) |
1092 | continue; | |
1093 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { | |
bbce6d69 | 1094 | if (*s++ != *x++) { |
1095 | s--; | |
1096 | break; | |
de3bb511 | 1097 | } |
bbce6d69 | 1098 | } |
c277df42 IZ |
1099 | if (s == littleend) { |
1100 | *old_posp = pos; | |
1101 | if (!last) return (char *)(big+pos-previous); | |
1102 | found = 1; | |
1103 | } | |
bbce6d69 | 1104 | } while ( pos += screamnext[pos] ); |
c277df42 | 1105 | return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch; |
de3bb511 LW |
1106 | #else /* !POINTERRIGOR */ |
1107 | big -= previous; | |
bbce6d69 | 1108 | do { |
c277df42 | 1109 | if (pos >= stop_pos) return Nullch; |
bbce6d69 | 1110 | if (big[pos] != first) |
1111 | continue; | |
1112 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { | |
bbce6d69 | 1113 | if (*s++ != *x++) { |
1114 | s--; | |
1115 | break; | |
378cc40b | 1116 | } |
bbce6d69 | 1117 | } |
c277df42 IZ |
1118 | if (s == littleend) { |
1119 | *old_posp = pos; | |
1120 | if (!last) return (char *)(big+pos); | |
1121 | found = 1; | |
1122 | } | |
bbce6d69 | 1123 | } while ( pos += screamnext[pos] ); |
c277df42 | 1124 | return (last && found) ? (char *)(big+(*old_posp)) : Nullch; |
de3bb511 | 1125 | #endif /* POINTERRIGOR */ |
8d063cd8 LW |
1126 | } |
1127 | ||
79072805 | 1128 | I32 |
8ac85365 | 1129 | ibcmp(char *s1, char *s2, register I32 len) |
79072805 | 1130 | { |
bbce6d69 | 1131 | register U8 *a = (U8 *)s1; |
1132 | register U8 *b = (U8 *)s2; | |
79072805 | 1133 | while (len--) { |
bbce6d69 | 1134 | if (*a != *b && *a != fold[*b]) |
1135 | return 1; | |
1136 | a++,b++; | |
1137 | } | |
1138 | return 0; | |
1139 | } | |
1140 | ||
1141 | I32 | |
8ac85365 | 1142 | ibcmp_locale(char *s1, char *s2, register I32 len) |
bbce6d69 | 1143 | { |
1144 | register U8 *a = (U8 *)s1; | |
1145 | register U8 *b = (U8 *)s2; | |
1146 | while (len--) { | |
1147 | if (*a != *b && *a != fold_locale[*b]) | |
1148 | return 1; | |
1149 | a++,b++; | |
79072805 LW |
1150 | } |
1151 | return 0; | |
1152 | } | |
1153 | ||
8d063cd8 LW |
1154 | /* copy a string to a safe spot */ |
1155 | ||
1156 | char * | |
8ac85365 | 1157 | savepv(char *sv) |
8d063cd8 | 1158 | { |
a687059c | 1159 | register char *newaddr; |
8d063cd8 | 1160 | |
79072805 LW |
1161 | New(902,newaddr,strlen(sv)+1,char); |
1162 | (void)strcpy(newaddr,sv); | |
8d063cd8 LW |
1163 | return newaddr; |
1164 | } | |
1165 | ||
a687059c LW |
1166 | /* same thing but with a known length */ |
1167 | ||
1168 | char * | |
8ac85365 | 1169 | savepvn(char *sv, register I32 len) |
a687059c LW |
1170 | { |
1171 | register char *newaddr; | |
1172 | ||
1173 | New(903,newaddr,len+1,char); | |
79072805 | 1174 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c LW |
1175 | newaddr[len] = '\0'; /* is now */ |
1176 | return newaddr; | |
1177 | } | |
1178 | ||
fc36a67e | 1179 | /* the SV for form() and mess() is not kept in an arena */ |
1180 | ||
1181 | static SV * | |
8ac85365 | 1182 | mess_alloc(void) |
fc36a67e | 1183 | { |
1184 | SV *sv; | |
1185 | XPVMG *any; | |
1186 | ||
1187 | /* Create as PVMG now, to avoid any upgrading later */ | |
1188 | New(905, sv, 1, SV); | |
1189 | Newz(905, any, 1, XPVMG); | |
1190 | SvFLAGS(sv) = SVt_PVMG; | |
1191 | SvANY(sv) = (void*)any; | |
1192 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ | |
1193 | return sv; | |
1194 | } | |
1195 | ||
a0d0e21e | 1196 | #ifdef I_STDARG |
8990e307 | 1197 | char * |
46fc3d4c | 1198 | form(const char* pat, ...) |
a687059c LW |
1199 | #else |
1200 | /*VARARGS0*/ | |
de3bb511 | 1201 | char * |
46fc3d4c | 1202 | form(pat, va_alist) |
71be2cbc | 1203 | const char *pat; |
46fc3d4c | 1204 | va_dcl |
8990e307 LW |
1205 | #endif |
1206 | { | |
46fc3d4c | 1207 | va_list args; |
1208 | #ifdef I_STDARG | |
1209 | va_start(args, pat); | |
a687059c | 1210 | #else |
46fc3d4c | 1211 | va_start(args); |
d48672a2 | 1212 | #endif |
fc36a67e | 1213 | if (!mess_sv) |
1214 | mess_sv = mess_alloc(); | |
1215 | sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); | |
46fc3d4c | 1216 | va_end(args); |
fc36a67e | 1217 | return SvPVX(mess_sv); |
46fc3d4c | 1218 | } |
a687059c | 1219 | |
46fc3d4c | 1220 | char * |
8ac85365 | 1221 | mess(const char *pat, va_list *args) |
46fc3d4c | 1222 | { |
1223 | SV *sv; | |
1224 | static char dgd[] = " during global destruction.\n"; | |
1225 | ||
46fc3d4c | 1226 | if (!mess_sv) |
fc36a67e | 1227 | mess_sv = mess_alloc(); |
46fc3d4c | 1228 | sv = mess_sv; |
fc36a67e | 1229 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 1230 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
e858de61 | 1231 | dTHR; |
2304df62 | 1232 | if (dirty) |
46fc3d4c | 1233 | sv_catpv(sv, dgd); |
2304df62 | 1234 | else { |
46fc3d4c | 1235 | if (curcop->cop_line) |
fc36a67e | 1236 | sv_catpvf(sv, " at %_ line %ld", |
46fc3d4c | 1237 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
c07a80fd | 1238 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
1239 | bool line_mode = (RsSIMPLE(rs) && | |
1240 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); | |
46fc3d4c | 1241 | sv_catpvf(sv, ", <%s> %s %ld", |
1242 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), | |
1243 | line_mode ? "line" : "chunk", | |
1244 | (long)IoLINES(GvIOp(last_in_gv))); | |
2304df62 | 1245 | } |
46fc3d4c | 1246 | sv_catpv(sv, ".\n"); |
a687059c | 1247 | } |
a687059c | 1248 | } |
46fc3d4c | 1249 | return SvPVX(sv); |
a687059c LW |
1250 | } |
1251 | ||
ecfc5424 | 1252 | #ifdef I_STDARG |
36477c24 | 1253 | OP * |
71be2cbc | 1254 | die(const char* pat, ...) |
36477c24 | 1255 | #else |
1256 | /*VARARGS0*/ | |
1257 | OP * | |
1258 | die(pat, va_alist) | |
71be2cbc | 1259 | const char *pat; |
36477c24 | 1260 | va_dcl |
1261 | #endif | |
1262 | { | |
5dc0d613 | 1263 | dTHR; |
36477c24 | 1264 | va_list args; |
1265 | char *message; | |
36477c24 | 1266 | int was_in_eval = in_eval; |
1267 | HV *stash; | |
1268 | GV *gv; | |
1269 | CV *cv; | |
1270 | ||
57d3b86d | 1271 | #ifdef USE_THREADS |
199100c8 MB |
1272 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1273 | "%p: die: curstack = %p, mainstack = %p\n", | |
1274 | thr, curstack, mainstack)); | |
57d3b86d | 1275 | #endif /* USE_THREADS */ |
36477c24 | 1276 | /* We have to switch back to mainstack or die_where may try to pop |
1277 | * the eval block from the wrong stack if die is being called from a | |
1278 | * signal handler. - dkindred@cs.cmu.edu */ | |
1279 | if (curstack != mainstack) { | |
1280 | dSP; | |
1281 | SWITCHSTACK(curstack, mainstack); | |
1282 | } | |
1283 | ||
1284 | #ifdef I_STDARG | |
1285 | va_start(args, pat); | |
1286 | #else | |
1287 | va_start(args); | |
1288 | #endif | |
1289 | message = mess(pat, &args); | |
1290 | va_end(args); | |
1291 | ||
57d3b86d | 1292 | #ifdef USE_THREADS |
199100c8 MB |
1293 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1294 | "%p: die: message = %s\ndiehook = %p\n", | |
1295 | thr, message, diehook)); | |
57d3b86d | 1296 | #endif /* USE_THREADS */ |
1738f5c4 CS |
1297 | if (diehook) { |
1298 | /* sv_2cv might call croak() */ | |
1299 | SV *olddiehook = diehook; | |
1300 | ENTER; | |
1301 | SAVESPTR(diehook); | |
1302 | diehook = Nullsv; | |
1303 | cv = sv_2cv(olddiehook, &stash, &gv, 0); | |
1304 | LEAVE; | |
1305 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1306 | dSP; | |
774d564b | 1307 | SV *msg; |
1308 | ||
1309 | ENTER; | |
1310 | msg = newSVpv(message, 0); | |
1311 | SvREADONLY_on(msg); | |
1312 | SAVEFREESV(msg); | |
1738f5c4 | 1313 | |
924508f0 | 1314 | PUSHMARK(SP); |
1738f5c4 CS |
1315 | XPUSHs(msg); |
1316 | PUTBACK; | |
1317 | perl_call_sv((SV*)cv, G_DISCARD); | |
1318 | ||
774d564b | 1319 | LEAVE; |
1738f5c4 | 1320 | } |
36477c24 | 1321 | } |
1322 | ||
1323 | restartop = die_where(message); | |
57d3b86d | 1324 | #ifdef USE_THREADS |
d9f997d7 | 1325 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
7c06b590 GS |
1326 | "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n", |
1327 | thr, restartop, was_in_eval, top_env)); | |
57d3b86d | 1328 | #endif /* USE_THREADS */ |
7c06b590 | 1329 | if ((!restartop && was_in_eval) || top_env->je_prev) |
54310121 | 1330 | JMPENV_JUMP(3); |
36477c24 | 1331 | return restartop; |
1332 | } | |
1333 | ||
1334 | #ifdef I_STDARG | |
79072805 | 1335 | void |
71be2cbc | 1336 | croak(const char* pat, ...) |
463ee0b2 | 1337 | #else |
8990e307 LW |
1338 | /*VARARGS0*/ |
1339 | void | |
1340 | croak(pat, va_alist) | |
1341 | char *pat; | |
1342 | va_dcl | |
463ee0b2 | 1343 | #endif |
a687059c | 1344 | { |
11343788 | 1345 | dTHR; |
a687059c | 1346 | va_list args; |
de3bb511 | 1347 | char *message; |
748a9306 LW |
1348 | HV *stash; |
1349 | GV *gv; | |
1350 | CV *cv; | |
a687059c | 1351 | |
a0d0e21e | 1352 | #ifdef I_STDARG |
8990e307 LW |
1353 | va_start(args, pat); |
1354 | #else | |
a687059c | 1355 | va_start(args); |
8990e307 | 1356 | #endif |
2304df62 | 1357 | message = mess(pat, &args); |
a687059c | 1358 | va_end(args); |
11343788 | 1359 | #ifdef USE_THREADS |
d9f997d7 | 1360 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
11343788 | 1361 | #endif /* USE_THREADS */ |
20cec16a | 1362 | if (diehook) { |
1738f5c4 | 1363 | /* sv_2cv might call croak() */ |
20cec16a | 1364 | SV *olddiehook = diehook; |
1738f5c4 CS |
1365 | ENTER; |
1366 | SAVESPTR(diehook); | |
1367 | diehook = Nullsv; | |
20cec16a | 1368 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 CS |
1369 | LEAVE; |
1370 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1371 | dSP; |
774d564b | 1372 | SV *msg; |
1373 | ||
1374 | ENTER; | |
1375 | msg = newSVpv(message, 0); | |
1376 | SvREADONLY_on(msg); | |
1377 | SAVEFREESV(msg); | |
20cec16a | 1378 | |
924508f0 | 1379 | PUSHMARK(SP); |
1738f5c4 | 1380 | XPUSHs(msg); |
20cec16a | 1381 | PUTBACK; |
1382 | perl_call_sv((SV*)cv, G_DISCARD); | |
36477c24 | 1383 | |
774d564b | 1384 | LEAVE; |
20cec16a | 1385 | } |
748a9306 | 1386 | } |
a0d0e21e LW |
1387 | if (in_eval) { |
1388 | restartop = die_where(message); | |
54310121 | 1389 | JMPENV_JUMP(3); |
a0d0e21e | 1390 | } |
760ac839 LW |
1391 | PerlIO_puts(PerlIO_stderr(),message); |
1392 | (void)PerlIO_flush(PerlIO_stderr()); | |
f86702cc | 1393 | my_failure_exit(); |
a687059c LW |
1394 | } |
1395 | ||
8990e307 | 1396 | void |
ecfc5424 | 1397 | #ifdef I_STDARG |
71be2cbc | 1398 | warn(const char* pat,...) |
463ee0b2 | 1399 | #else |
8990e307 LW |
1400 | /*VARARGS0*/ |
1401 | warn(pat,va_alist) | |
71be2cbc | 1402 | const char *pat; |
8990e307 | 1403 | va_dcl |
463ee0b2 | 1404 | #endif |
a687059c LW |
1405 | { |
1406 | va_list args; | |
de3bb511 | 1407 | char *message; |
748a9306 LW |
1408 | HV *stash; |
1409 | GV *gv; | |
1410 | CV *cv; | |
a687059c | 1411 | |
a0d0e21e | 1412 | #ifdef I_STDARG |
8990e307 LW |
1413 | va_start(args, pat); |
1414 | #else | |
a687059c | 1415 | va_start(args); |
8990e307 | 1416 | #endif |
2304df62 | 1417 | message = mess(pat, &args); |
a687059c LW |
1418 | va_end(args); |
1419 | ||
20cec16a | 1420 | if (warnhook) { |
1738f5c4 | 1421 | /* sv_2cv might call warn() */ |
11343788 | 1422 | dTHR; |
20cec16a | 1423 | SV *oldwarnhook = warnhook; |
1738f5c4 CS |
1424 | ENTER; |
1425 | SAVESPTR(warnhook); | |
1426 | warnhook = Nullsv; | |
20cec16a | 1427 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 CS |
1428 | LEAVE; |
1429 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1430 | dSP; |
774d564b | 1431 | SV *msg; |
1432 | ||
1433 | ENTER; | |
1434 | msg = newSVpv(message, 0); | |
1435 | SvREADONLY_on(msg); | |
1436 | SAVEFREESV(msg); | |
1437 | ||
924508f0 | 1438 | PUSHMARK(SP); |
774d564b | 1439 | XPUSHs(msg); |
20cec16a | 1440 | PUTBACK; |
1441 | perl_call_sv((SV*)cv, G_DISCARD); | |
774d564b | 1442 | |
1443 | LEAVE; | |
20cec16a | 1444 | return; |
1445 | } | |
748a9306 | 1446 | } |
20cec16a | 1447 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c | 1448 | #ifdef LEAKTEST |
8c52afec IZ |
1449 | DEBUG_L(*message == '!' |
1450 | ? (xstat(message[1]=='!' | |
1451 | ? (message[2]=='!' ? 2 : 1) | |
1452 | : 0) | |
1453 | , 0) | |
1454 | : 0); | |
a687059c | 1455 | #endif |
20cec16a | 1456 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c | 1457 | } |
8d063cd8 | 1458 | |
a0d0e21e | 1459 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
3e3baf6d | 1460 | #ifndef WIN32 |
8d063cd8 | 1461 | void |
8ac85365 | 1462 | my_setenv(char *nam, char *val) |
8d063cd8 | 1463 | { |
79072805 | 1464 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 | 1465 | |
fe14fcc3 | 1466 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 LW |
1467 | I32 j; |
1468 | I32 max; | |
fe14fcc3 LW |
1469 | char **tmpenv; |
1470 | ||
de3bb511 | 1471 | /*SUPPRESS 530*/ |
fe14fcc3 LW |
1472 | for (max = i; environ[max]; max++) ; |
1473 | New(901,tmpenv, max+2, char*); | |
1474 | for (j=0; j<max; j++) /* copy environment */ | |
a0d0e21e | 1475 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 LW |
1476 | tmpenv[max] = Nullch; |
1477 | environ = tmpenv; /* tell exec where it is now */ | |
1478 | } | |
a687059c | 1479 | if (!val) { |
e5ebf479 | 1480 | Safefree(environ[i]); |
a687059c LW |
1481 | while (environ[i]) { |
1482 | environ[i] = environ[i+1]; | |
1483 | i++; | |
1484 | } | |
1485 | return; | |
1486 | } | |
8d063cd8 | 1487 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 | 1488 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 LW |
1489 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1490 | } | |
fe14fcc3 LW |
1491 | else |
1492 | Safefree(environ[i]); | |
a687059c | 1493 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 | 1494 | #ifndef MSDOS |
a687059c | 1495 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 LW |
1496 | #else |
1497 | /* MS-DOS requires environment variable names to be in uppercase */ | |
fe14fcc3 LW |
1498 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1499 | * some utilities and applications may break because they only look | |
1500 | * for upper case strings. (Fixed strupr() bug here.)] | |
1501 | */ | |
1502 | strcpy(environ[i],nam); strupr(environ[i]); | |
62b28dd9 LW |
1503 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1504 | #endif /* MSDOS */ | |
8d063cd8 LW |
1505 | } |
1506 | ||
3e3baf6d | 1507 | #else /* if WIN32 */ |
68dc0745 | 1508 | |
1509 | void | |
4e35701f | 1510 | my_setenv(char *nam,char *val) |
68dc0745 | 1511 | { |
3e3baf6d TB |
1512 | |
1513 | #ifdef USE_WIN32_RTL_ENV | |
1514 | ||
68dc0745 | 1515 | register char *envstr; |
1516 | STRLEN namlen = strlen(nam); | |
3e3baf6d TB |
1517 | STRLEN vallen; |
1518 | char *oldstr = environ[setenv_getix(nam)]; | |
1519 | ||
1520 | /* putenv() has totally broken semantics in both the Borland | |
1521 | * and Microsoft CRTLs. They either store the passed pointer in | |
1522 | * the environment without making a copy, or make a copy and don't | |
1523 | * free it. And on top of that, they dont free() old entries that | |
1524 | * are being replaced/deleted. This means the caller must | |
1525 | * free any old entries somehow, or we end up with a memory | |
1526 | * leak every time my_setenv() is called. One might think | |
1527 | * one could directly manipulate environ[], like the UNIX code | |
1528 | * above, but direct changes to environ are not allowed when | |
1529 | * calling putenv(), since the RTLs maintain an internal | |
1530 | * *copy* of environ[]. Bad, bad, *bad* stink. | |
1531 | * GSAR 97-06-07 | |
1532 | */ | |
68dc0745 | 1533 | |
3e3baf6d TB |
1534 | if (!val) { |
1535 | if (!oldstr) | |
1536 | return; | |
1537 | val = ""; | |
1538 | vallen = 0; | |
1539 | } | |
1540 | else | |
1541 | vallen = strlen(val); | |
fc36a67e | 1542 | New(904, envstr, namlen + vallen + 3, char); |
68dc0745 | 1543 | (void)sprintf(envstr,"%s=%s",nam,val); |
5fd9e9a4 | 1544 | (void)PerlEnv_putenv(envstr); |
3e3baf6d TB |
1545 | if (oldstr) |
1546 | Safefree(oldstr); | |
1547 | #ifdef _MSC_VER | |
1548 | Safefree(envstr); /* MSVCRT leaks without this */ | |
1549 | #endif | |
1550 | ||
1551 | #else /* !USE_WIN32_RTL_ENV */ | |
1552 | ||
1553 | /* The sane way to deal with the environment. | |
1554 | * Has these advantages over putenv() & co.: | |
1555 | * * enables us to store a truly empty value in the | |
1556 | * environment (like in UNIX). | |
1557 | * * we don't have to deal with RTL globals, bugs and leaks. | |
1558 | * * Much faster. | |
1559 | * Why you may want to enable USE_WIN32_RTL_ENV: | |
1560 | * * environ[] and RTL functions will not reflect changes, | |
1561 | * which might be an issue if extensions want to access | |
1562 | * the env. via RTL. This cuts both ways, since RTL will | |
1563 | * not see changes made by extensions that call the Win32 | |
1564 | * functions directly, either. | |
1565 | * GSAR 97-06-07 | |
1566 | */ | |
1567 | SetEnvironmentVariable(nam,val); | |
1568 | ||
1569 | #endif | |
1570 | } | |
1571 | ||
1572 | #endif /* WIN32 */ | |
1573 | ||
1574 | I32 | |
8ac85365 | 1575 | setenv_getix(char *nam) |
3e3baf6d TB |
1576 | { |
1577 | register I32 i, len = strlen(nam); | |
1578 | ||
1579 | for (i = 0; environ[i]; i++) { | |
1580 | if ( | |
1581 | #ifdef WIN32 | |
1582 | strnicmp(environ[i],nam,len) == 0 | |
1583 | #else | |
1584 | strnEQ(environ[i],nam,len) | |
1585 | #endif | |
1586 | && environ[i][len] == '=') | |
1587 | break; /* strnEQ must come first to avoid */ | |
1588 | } /* potential SEGV's */ | |
1589 | return i; | |
68dc0745 | 1590 | } |
1591 | ||
a0d0e21e | 1592 | #endif /* !VMS */ |
378cc40b | 1593 | |
16d20bd9 | 1594 | #ifdef UNLINK_ALL_VERSIONS |
79072805 | 1595 | I32 |
378cc40b LW |
1596 | unlnk(f) /* unlink all versions of a file */ |
1597 | char *f; | |
1598 | { | |
79072805 | 1599 | I32 i; |
378cc40b | 1600 | |
3028581b | 1601 | for (i = 0; PerlLIO_unlink(f) >= 0; i++) ; |
378cc40b LW |
1602 | return i ? 0 : -1; |
1603 | } | |
1604 | #endif | |
1605 | ||
85e6fe83 | 1606 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b | 1607 | char * |
4e35701f | 1608 | my_bcopy(register char *from,register char *to,register I32 len) |
378cc40b LW |
1609 | { |
1610 | char *retval = to; | |
1611 | ||
7c0587c8 LW |
1612 | if (from - to >= 0) { |
1613 | while (len--) | |
1614 | *to++ = *from++; | |
1615 | } | |
1616 | else { | |
1617 | to += len; | |
1618 | from += len; | |
1619 | while (len--) | |
faf8582f | 1620 | *(--to) = *(--from); |
7c0587c8 | 1621 | } |
378cc40b LW |
1622 | return retval; |
1623 | } | |
ffed7fef | 1624 | #endif |
378cc40b | 1625 | |
fc36a67e | 1626 | #ifndef HAS_MEMSET |
1627 | void * | |
1628 | my_memset(loc,ch,len) | |
1629 | register char *loc; | |
1630 | register I32 ch; | |
1631 | register I32 len; | |
1632 | { | |
1633 | char *retval = loc; | |
1634 | ||
1635 | while (len--) | |
1636 | *loc++ = ch; | |
1637 | return retval; | |
1638 | } | |
1639 | #endif | |
1640 | ||
7c0587c8 | 1641 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b | 1642 | char * |
7c0587c8 | 1643 | my_bzero(loc,len) |
378cc40b | 1644 | register char *loc; |
79072805 | 1645 | register I32 len; |
378cc40b LW |
1646 | { |
1647 | char *retval = loc; | |
1648 | ||
1649 | while (len--) | |
1650 | *loc++ = 0; | |
1651 | return retval; | |
1652 | } | |
1653 | #endif | |
7c0587c8 | 1654 | |
36477c24 | 1655 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 | 1656 | I32 |
7c0587c8 | 1657 | my_memcmp(s1,s2,len) |
36477c24 | 1658 | char *s1; |
1659 | char *s2; | |
79072805 | 1660 | register I32 len; |
7c0587c8 | 1661 | { |
36477c24 | 1662 | register U8 *a = (U8 *)s1; |
1663 | register U8 *b = (U8 *)s2; | |
79072805 | 1664 | register I32 tmp; |
7c0587c8 LW |
1665 | |
1666 | while (len--) { | |
36477c24 | 1667 | if (tmp = *a++ - *b++) |
7c0587c8 LW |
1668 | return tmp; |
1669 | } | |
1670 | return 0; | |
1671 | } | |
36477c24 | 1672 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c | 1673 | |
4633a7c4 | 1674 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 | 1675 | #ifndef HAS_VPRINTF |
a687059c | 1676 | |
85e6fe83 | 1677 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1678 | char * |
1679 | #else | |
1680 | int | |
1681 | #endif | |
1682 | vsprintf(dest, pat, args) | |
71be2cbc | 1683 | char *dest; |
1684 | const char *pat; | |
1685 | char *args; | |
a687059c LW |
1686 | { |
1687 | FILE fakebuf; | |
1688 | ||
1689 | fakebuf._ptr = dest; | |
1690 | fakebuf._cnt = 32767; | |
35c8bce7 LW |
1691 | #ifndef _IOSTRG |
1692 | #define _IOSTRG 0 | |
1693 | #endif | |
a687059c LW |
1694 | fakebuf._flag = _IOWRT|_IOSTRG; |
1695 | _doprnt(pat, args, &fakebuf); /* what a kludge */ | |
1696 | (void)putc('\0', &fakebuf); | |
85e6fe83 | 1697 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1698 | return(dest); |
1699 | #else | |
1700 | return 0; /* perl doesn't use return value */ | |
1701 | #endif | |
1702 | } | |
1703 | ||
fe14fcc3 | 1704 | #endif /* HAS_VPRINTF */ |
4633a7c4 | 1705 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c LW |
1706 | |
1707 | #ifdef MYSWAP | |
ffed7fef | 1708 | #if BYTEORDER != 0x4321 |
a687059c | 1709 | short |
748a9306 | 1710 | my_swap(short s) |
a687059c LW |
1711 | { |
1712 | #if (BYTEORDER & 1) == 0 | |
1713 | short result; | |
1714 | ||
1715 | result = ((s & 255) << 8) + ((s >> 8) & 255); | |
1716 | return result; | |
1717 | #else | |
1718 | return s; | |
1719 | #endif | |
1720 | } | |
1721 | ||
1722 | long | |
748a9306 | 1723 | my_htonl(long l) |
a687059c LW |
1724 | { |
1725 | union { | |
1726 | long result; | |
ffed7fef | 1727 | char c[sizeof(long)]; |
a687059c LW |
1728 | } u; |
1729 | ||
ffed7fef | 1730 | #if BYTEORDER == 0x1234 |
a687059c LW |
1731 | u.c[0] = (l >> 24) & 255; |
1732 | u.c[1] = (l >> 16) & 255; | |
1733 | u.c[2] = (l >> 8) & 255; | |
1734 | u.c[3] = l & 255; | |
1735 | return u.result; | |
1736 | #else | |
ffed7fef | 1737 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1738 | croak("Unknown BYTEORDER\n"); |
a687059c | 1739 | #else |
79072805 LW |
1740 | register I32 o; |
1741 | register I32 s; | |
a687059c | 1742 | |
ffed7fef LW |
1743 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1744 | u.c[o & 0xf] = (l >> s) & 255; | |
a687059c LW |
1745 | } |
1746 | return u.result; | |
1747 | #endif | |
1748 | #endif | |
1749 | } | |
1750 | ||
1751 | long | |
748a9306 | 1752 | my_ntohl(long l) |
a687059c LW |
1753 | { |
1754 | union { | |
1755 | long l; | |
ffed7fef | 1756 | char c[sizeof(long)]; |
a687059c LW |
1757 | } u; |
1758 | ||
ffed7fef | 1759 | #if BYTEORDER == 0x1234 |
a687059c LW |
1760 | u.c[0] = (l >> 24) & 255; |
1761 | u.c[1] = (l >> 16) & 255; | |
1762 | u.c[2] = (l >> 8) & 255; | |
1763 | u.c[3] = l & 255; | |
1764 | return u.l; | |
1765 | #else | |
ffed7fef | 1766 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1767 | croak("Unknown BYTEORDER\n"); |
a687059c | 1768 | #else |
79072805 LW |
1769 | register I32 o; |
1770 | register I32 s; | |
a687059c LW |
1771 | |
1772 | u.l = l; | |
1773 | l = 0; | |
ffed7fef LW |
1774 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1775 | l |= (u.c[o & 0xf] & 255) << s; | |
a687059c LW |
1776 | } |
1777 | return l; | |
1778 | #endif | |
1779 | #endif | |
1780 | } | |
1781 | ||
ffed7fef | 1782 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 LW |
1783 | #endif /* MYSWAP */ |
1784 | ||
1785 | /* | |
1786 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. | |
1787 | * If these functions are defined, | |
1788 | * the BYTEORDER is neither 0x1234 nor 0x4321. | |
1789 | * However, this is not assumed. | |
1790 | * -DWS | |
1791 | */ | |
1792 | ||
1793 | #define HTOV(name,type) \ | |
1794 | type \ | |
1795 | name (n) \ | |
1796 | register type n; \ | |
1797 | { \ | |
1798 | union { \ | |
1799 | type value; \ | |
1800 | char c[sizeof(type)]; \ | |
1801 | } u; \ | |
79072805 LW |
1802 | register I32 i; \ |
1803 | register I32 s; \ | |
988174c1 LW |
1804 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1805 | u.c[i] = (n >> s) & 0xFF; \ | |
1806 | } \ | |
1807 | return u.value; \ | |
1808 | } | |
1809 | ||
1810 | #define VTOH(name,type) \ | |
1811 | type \ | |
1812 | name (n) \ | |
1813 | register type n; \ | |
1814 | { \ | |
1815 | union { \ | |
1816 | type value; \ | |
1817 | char c[sizeof(type)]; \ | |
1818 | } u; \ | |
79072805 LW |
1819 | register I32 i; \ |
1820 | register I32 s; \ | |
988174c1 LW |
1821 | u.value = n; \ |
1822 | n = 0; \ | |
1823 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ | |
1824 | n += (u.c[i] & 0xFF) << s; \ | |
1825 | } \ | |
1826 | return n; \ | |
1827 | } | |
1828 | ||
1829 | #if defined(HAS_HTOVS) && !defined(htovs) | |
1830 | HTOV(htovs,short) | |
1831 | #endif | |
1832 | #if defined(HAS_HTOVL) && !defined(htovl) | |
1833 | HTOV(htovl,long) | |
1834 | #endif | |
1835 | #if defined(HAS_VTOHS) && !defined(vtohs) | |
1836 | VTOH(vtohs,short) | |
1837 | #endif | |
1838 | #if defined(HAS_VTOHL) && !defined(vtohl) | |
1839 | VTOH(vtohl,long) | |
1840 | #endif | |
a687059c | 1841 | |
5f05dabc | 1842 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
1843 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) | |
760ac839 | 1844 | PerlIO * |
8ac85365 | 1845 | my_popen(char *cmd, char *mode) |
a687059c LW |
1846 | { |
1847 | int p[2]; | |
8ac85365 | 1848 | register I32 This, that; |
79072805 LW |
1849 | register I32 pid; |
1850 | SV *sv; | |
1738f5c4 | 1851 | I32 doexec = strNE(cmd,"-"); |
a687059c | 1852 | |
ddcf38b7 IZ |
1853 | #ifdef OS2 |
1854 | if (doexec) { | |
1855 | return my_syspopen(cmd,mode); | |
1856 | } | |
1857 | #endif | |
8ac85365 NIS |
1858 | This = (*mode == 'w'); |
1859 | that = !This; | |
bbce6d69 | 1860 | if (doexec && tainting) { |
1861 | taint_env(); | |
1862 | taint_proper("Insecure %s%s", "EXEC"); | |
d48672a2 | 1863 | } |
c2267164 IZ |
1864 | if (PerlProc_pipe(p) < 0) |
1865 | return Nullfp; | |
a687059c LW |
1866 | while ((pid = (doexec?vfork():fork())) < 0) { |
1867 | if (errno != EAGAIN) { | |
3028581b | 1868 | PerlLIO_close(p[This]); |
a687059c | 1869 | if (!doexec) |
463ee0b2 | 1870 | croak("Can't fork"); |
a687059c LW |
1871 | return Nullfp; |
1872 | } | |
1873 | sleep(5); | |
1874 | } | |
1875 | if (pid == 0) { | |
79072805 LW |
1876 | GV* tmpgv; |
1877 | ||
a687059c | 1878 | #define THIS that |
8ac85365 | 1879 | #define THAT This |
3028581b | 1880 | PerlLIO_close(p[THAT]); |
a687059c | 1881 | if (p[THIS] != (*mode == 'r')) { |
3028581b GS |
1882 | PerlLIO_dup2(p[THIS], *mode == 'r'); |
1883 | PerlLIO_close(p[THIS]); | |
a687059c LW |
1884 | } |
1885 | if (doexec) { | |
a0d0e21e | 1886 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 LW |
1887 | int fd; |
1888 | ||
1889 | #ifndef NOFILE | |
1890 | #define NOFILE 20 | |
1891 | #endif | |
d48672a2 | 1892 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
3028581b | 1893 | PerlLIO_close(fd); |
ae986130 | 1894 | #endif |
a687059c | 1895 | do_exec(cmd); /* may or may not use the shell */ |
3028581b | 1896 | PerlProc__exit(1); |
a687059c | 1897 | } |
de3bb511 | 1898 | /*SUPPRESS 560*/ |
85e6fe83 | 1899 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 1900 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
9f68db38 | 1901 | forkprocess = 0; |
463ee0b2 | 1902 | hv_clear(pidstatus); /* we have no children */ |
a687059c LW |
1903 | return Nullfp; |
1904 | #undef THIS | |
1905 | #undef THAT | |
1906 | } | |
62b28dd9 | 1907 | do_execfree(); /* free any memory malloced by child on vfork */ |
3028581b | 1908 | PerlLIO_close(p[that]); |
8ac85365 | 1909 | if (p[that] < p[This]) { |
3028581b GS |
1910 | PerlLIO_dup2(p[This], p[that]); |
1911 | PerlLIO_close(p[This]); | |
8ac85365 | 1912 | p[This] = p[that]; |
62b28dd9 | 1913 | } |
8ac85365 | 1914 | sv = *av_fetch(fdpid,p[This],TRUE); |
a0d0e21e | 1915 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 1916 | SvIVX(sv) = pid; |
a687059c | 1917 | forkprocess = pid; |
8ac85365 | 1918 | return PerlIO_fdopen(p[This], mode); |
a687059c | 1919 | } |
7c0587c8 | 1920 | #else |
55497cff | 1921 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 | 1922 | FILE *popen(); |
760ac839 | 1923 | PerlIO * |
79072805 | 1924 | my_popen(cmd,mode) |
7c0587c8 LW |
1925 | char *cmd; |
1926 | char *mode; | |
1927 | { | |
760ac839 | 1928 | /* Needs work for PerlIO ! */ |
55497cff | 1929 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1930 | return popen(PerlIO_exportFILE(cmd, 0), mode); | |
7c0587c8 LW |
1931 | } |
1932 | #endif | |
1933 | ||
1934 | #endif /* !DOSISH */ | |
a687059c | 1935 | |
748a9306 | 1936 | #ifdef DUMP_FDS |
79072805 | 1937 | dump_fds(s) |
ae986130 LW |
1938 | char *s; |
1939 | { | |
1940 | int fd; | |
1941 | struct stat tmpstatbuf; | |
1942 | ||
760ac839 | 1943 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 | 1944 | for (fd = 0; fd < 32; fd++) { |
3028581b | 1945 | if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0) |
760ac839 | 1946 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 | 1947 | } |
760ac839 | 1948 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 LW |
1949 | } |
1950 | #endif | |
1951 | ||
fe14fcc3 | 1952 | #ifndef HAS_DUP2 |
fec02dd3 | 1953 | int |
a687059c LW |
1954 | dup2(oldfd,newfd) |
1955 | int oldfd; | |
1956 | int newfd; | |
1957 | { | |
a0d0e21e | 1958 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 AD |
1959 | if (oldfd == newfd) |
1960 | return oldfd; | |
3028581b | 1961 | PerlLIO_close(newfd); |
fec02dd3 | 1962 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 | 1963 | #else |
fc36a67e | 1964 | #define DUP2_MAX_FDS 256 |
1965 | int fdtmp[DUP2_MAX_FDS]; | |
79072805 | 1966 | I32 fdx = 0; |
ae986130 LW |
1967 | int fd; |
1968 | ||
fe14fcc3 | 1969 | if (oldfd == newfd) |
fec02dd3 | 1970 | return oldfd; |
3028581b | 1971 | PerlLIO_close(newfd); |
fc36a67e | 1972 | /* good enough for low fd's... */ |
3028581b | 1973 | while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) { |
fc36a67e | 1974 | if (fdx >= DUP2_MAX_FDS) { |
3028581b | 1975 | PerlLIO_close(fd); |
fc36a67e | 1976 | fd = -1; |
1977 | break; | |
1978 | } | |
ae986130 | 1979 | fdtmp[fdx++] = fd; |
fc36a67e | 1980 | } |
ae986130 | 1981 | while (fdx > 0) |
3028581b | 1982 | PerlLIO_close(fdtmp[--fdx]); |
fec02dd3 | 1983 | return fd; |
62b28dd9 | 1984 | #endif |
a687059c LW |
1985 | } |
1986 | #endif | |
1987 | ||
ff68c719 | 1988 | |
1989 | #ifdef HAS_SIGACTION | |
1990 | ||
1991 | Sighandler_t | |
8ac85365 | 1992 | rsignal(int signo, Sighandler_t handler) |
ff68c719 | 1993 | { |
1994 | struct sigaction act, oact; | |
1995 | ||
1996 | act.sa_handler = handler; | |
1997 | sigemptyset(&act.sa_mask); | |
1998 | act.sa_flags = 0; | |
1999 | #ifdef SA_RESTART | |
2000 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
2001 | #endif | |
2002 | if (sigaction(signo, &act, &oact) == -1) | |
36477c24 | 2003 | return SIG_ERR; |
ff68c719 | 2004 | else |
36477c24 | 2005 | return oact.sa_handler; |
ff68c719 | 2006 | } |
2007 | ||
2008 | Sighandler_t | |
8ac85365 | 2009 | rsignal_state(int signo) |
ff68c719 | 2010 | { |
2011 | struct sigaction oact; | |
2012 | ||
2013 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) | |
2014 | return SIG_ERR; | |
2015 | else | |
2016 | return oact.sa_handler; | |
2017 | } | |
2018 | ||
2019 | int | |
8ac85365 | 2020 | rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 | 2021 | { |
2022 | struct sigaction act; | |
2023 | ||
2024 | act.sa_handler = handler; | |
2025 | sigemptyset(&act.sa_mask); | |
2026 | act.sa_flags = 0; | |
2027 | #ifdef SA_RESTART | |
2028 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
2029 | #endif | |
2030 | return sigaction(signo, &act, save); | |
2031 | } | |
2032 | ||
2033 | int | |
8ac85365 | 2034 | rsignal_restore(int signo, Sigsave_t *save) |
ff68c719 | 2035 | { |
2036 | return sigaction(signo, save, (struct sigaction *)NULL); | |
2037 | } | |
2038 | ||
2039 | #else /* !HAS_SIGACTION */ | |
2040 | ||
2041 | Sighandler_t | |
4e35701f | 2042 | rsignal(int signo, Sighandler_t handler) |
ff68c719 | 2043 | { |
3028581b | 2044 | return PerlProc_signal(signo, handler); |
ff68c719 | 2045 | } |
2046 | ||
2047 | static int sig_trapped; | |
2048 | ||
2049 | static | |
2050 | Signal_t | |
4e35701f | 2051 | sig_trap(int signo) |
ff68c719 | 2052 | { |
2053 | sig_trapped++; | |
2054 | } | |
2055 | ||
2056 | Sighandler_t | |
4e35701f | 2057 | rsignal_state(int signo) |
ff68c719 | 2058 | { |
2059 | Sighandler_t oldsig; | |
2060 | ||
2061 | sig_trapped = 0; | |
3028581b GS |
2062 | oldsig = PerlProc_signal(signo, sig_trap); |
2063 | PerlProc_signal(signo, oldsig); | |
ff68c719 | 2064 | if (sig_trapped) |
3028581b | 2065 | PerlProc_kill(getpid(), signo); |
ff68c719 | 2066 | return oldsig; |
2067 | } | |
2068 | ||
2069 | int | |
4e35701f | 2070 | rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 | 2071 | { |
3028581b | 2072 | *save = PerlProc_signal(signo, handler); |
ff68c719 | 2073 | return (*save == SIG_ERR) ? -1 : 0; |
2074 | } | |
2075 | ||
2076 | int | |
4e35701f | 2077 | rsignal_restore(int signo, Sigsave_t *save) |
ff68c719 | 2078 | { |
3028581b | 2079 | return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0; |
ff68c719 | 2080 | } |
2081 | ||
2082 | #endif /* !HAS_SIGACTION */ | |
2083 | ||
5f05dabc | 2084 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
2085 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) | |
79072805 | 2086 | I32 |
6acef3b7 | 2087 | my_pclose(PerlIO *ptr) |
a687059c | 2088 | { |
ff68c719 | 2089 | Sigsave_t hstat, istat, qstat; |
a687059c | 2090 | int status; |
a0d0e21e | 2091 | SV **svp; |
20188a90 | 2092 | int pid; |
03136e13 CS |
2093 | bool close_failed; |
2094 | int saved_errno; | |
2095 | #ifdef VMS | |
2096 | int saved_vaxc_errno; | |
2097 | #endif | |
22fae026 TM |
2098 | #ifdef WIN32 |
2099 | int saved_win32_errno; | |
2100 | #endif | |
a687059c | 2101 | |
760ac839 | 2102 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 | 2103 | pid = (int)SvIVX(*svp); |
a0d0e21e LW |
2104 | SvREFCNT_dec(*svp); |
2105 | *svp = &sv_undef; | |
ddcf38b7 IZ |
2106 | #ifdef OS2 |
2107 | if (pid == -1) { /* Opened by popen. */ | |
2108 | return my_syspclose(ptr); | |
2109 | } | |
2110 | #endif | |
03136e13 CS |
2111 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2112 | saved_errno = errno; | |
2113 | #ifdef VMS | |
2114 | saved_vaxc_errno = vaxc$errno; | |
2115 | #endif | |
22fae026 TM |
2116 | #ifdef WIN32 |
2117 | saved_win32_errno = GetLastError(); | |
2118 | #endif | |
03136e13 | 2119 | } |
7c0587c8 | 2120 | #ifdef UTS |
3028581b | 2121 | if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
7c0587c8 | 2122 | #endif |
ff68c719 | 2123 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2124 | rsignal_save(SIGINT, SIG_IGN, &istat); | |
2125 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); | |
748a9306 LW |
2126 | do { |
2127 | pid = wait4pid(pid, &status, 0); | |
2128 | } while (pid == -1 && errno == EINTR); | |
ff68c719 | 2129 | rsignal_restore(SIGHUP, &hstat); |
2130 | rsignal_restore(SIGINT, &istat); | |
2131 | rsignal_restore(SIGQUIT, &qstat); | |
03136e13 CS |
2132 | if (close_failed) { |
2133 | SETERRNO(saved_errno, saved_vaxc_errno); | |
2134 | return -1; | |
2135 | } | |
2136 | return(pid < 0 ? pid : status == 0 ? 0 : (errno = 0, status)); | |
20188a90 | 2137 | } |
4633a7c4 LW |
2138 | #endif /* !DOSISH */ |
2139 | ||
2d7a9237 | 2140 | #if !defined(DOSISH) || defined(OS2) || defined(WIN32) |
79072805 | 2141 | I32 |
8ac85365 | 2142 | wait4pid(int pid, int *statusp, int flags) |
20188a90 | 2143 | { |
79072805 LW |
2144 | SV *sv; |
2145 | SV** svp; | |
fc36a67e | 2146 | char spid[TYPE_CHARS(int)]; |
20188a90 LW |
2147 | |
2148 | if (!pid) | |
2149 | return -1; | |
20188a90 LW |
2150 | if (pid > 0) { |
2151 | sprintf(spid, "%d", pid); | |
79072805 LW |
2152 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
2153 | if (svp && *svp != &sv_undef) { | |
463ee0b2 | 2154 | *statusp = SvIVX(*svp); |
748a9306 | 2155 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2156 | return pid; |
2157 | } | |
2158 | } | |
2159 | else { | |
79072805 | 2160 | HE *entry; |
20188a90 | 2161 | |
79072805 LW |
2162 | hv_iterinit(pidstatus); |
2163 | if (entry = hv_iternext(pidstatus)) { | |
a0d0e21e | 2164 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 | 2165 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 | 2166 | *statusp = SvIVX(sv); |
20188a90 | 2167 | sprintf(spid, "%d", pid); |
748a9306 | 2168 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2169 | return pid; |
2170 | } | |
2171 | } | |
79072805 | 2172 | #ifdef HAS_WAITPID |
367f3c24 IZ |
2173 | # ifdef HAS_WAITPID_RUNTIME |
2174 | if (!HAS_WAITPID_RUNTIME) | |
2175 | goto hard_way; | |
2176 | # endif | |
79072805 | 2177 | return waitpid(pid,statusp,flags); |
367f3c24 IZ |
2178 | #endif |
2179 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) | |
a0d0e21e | 2180 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
367f3c24 IZ |
2181 | #endif |
2182 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) | |
2183 | hard_way: | |
a0d0e21e LW |
2184 | { |
2185 | I32 result; | |
2186 | if (flags) | |
2187 | croak("Can't do waitpid with flags"); | |
2188 | else { | |
2189 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) | |
2190 | pidgone(result,*statusp); | |
2191 | if (result < 0) | |
2192 | *statusp = -1; | |
2193 | } | |
2194 | return result; | |
a687059c LW |
2195 | } |
2196 | #endif | |
a687059c | 2197 | } |
2d7a9237 | 2198 | #endif /* !DOSISH || OS2 || WIN32 */ |
a687059c | 2199 | |
7c0587c8 | 2200 | void |
de3bb511 | 2201 | /*SUPPRESS 590*/ |
8ac85365 | 2202 | pidgone(int pid, int status) |
a687059c | 2203 | { |
79072805 | 2204 | register SV *sv; |
fc36a67e | 2205 | char spid[TYPE_CHARS(int)]; |
a687059c | 2206 | |
20188a90 | 2207 | sprintf(spid, "%d", pid); |
79072805 | 2208 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e | 2209 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 2210 | SvIVX(sv) = status; |
20188a90 | 2211 | return; |
a687059c LW |
2212 | } |
2213 | ||
55497cff | 2214 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 | 2215 | int pclose(); |
ddcf38b7 IZ |
2216 | #ifdef HAS_FORK |
2217 | int /* Cannot prototype with I32 | |
2218 | in os2ish.h. */ | |
2219 | my_syspclose(ptr) | |
2220 | #else | |
79072805 LW |
2221 | I32 |
2222 | my_pclose(ptr) | |
ddcf38b7 | 2223 | #endif |
760ac839 | 2224 | PerlIO *ptr; |
a687059c | 2225 | { |
760ac839 LW |
2226 | /* Needs work for PerlIO ! */ |
2227 | FILE *f = PerlIO_findFILE(ptr); | |
2228 | I32 result = pclose(f); | |
2229 | PerlIO_releaseFILE(ptr,f); | |
2230 | return result; | |
a687059c | 2231 | } |
7c0587c8 | 2232 | #endif |
9f68db38 LW |
2233 | |
2234 | void | |
8ac85365 | 2235 | repeatcpy(register char *to, register char *from, I32 len, register I32 count) |
9f68db38 | 2236 | { |
79072805 | 2237 | register I32 todo; |
9f68db38 LW |
2238 | register char *frombase = from; |
2239 | ||
2240 | if (len == 1) { | |
2241 | todo = *from; | |
2242 | while (count-- > 0) | |
2243 | *to++ = todo; | |
2244 | return; | |
2245 | } | |
2246 | while (count-- > 0) { | |
2247 | for (todo = len; todo > 0; todo--) { | |
2248 | *to++ = *from++; | |
2249 | } | |
2250 | from = frombase; | |
2251 | } | |
2252 | } | |
0f85fab0 LW |
2253 | |
2254 | #ifndef CASTNEGFLOAT | |
463ee0b2 | 2255 | U32 |
79072805 | 2256 | cast_ulong(f) |
0f85fab0 LW |
2257 | double f; |
2258 | { | |
2259 | long along; | |
2260 | ||
27e2fb84 | 2261 | #if CASTFLAGS & 2 |
34de22dd LW |
2262 | # define BIGDOUBLE 2147483648.0 |
2263 | if (f >= BIGDOUBLE) | |
2264 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; | |
2265 | #endif | |
0f85fab0 LW |
2266 | if (f >= 0.0) |
2267 | return (unsigned long)f; | |
2268 | along = (long)f; | |
2269 | return (unsigned long)along; | |
2270 | } | |
ed6116ce LW |
2271 | # undef BIGDOUBLE |
2272 | #endif | |
2273 | ||
2274 | #ifndef CASTI32 | |
5d94fbed | 2275 | |
5d94fbed AD |
2276 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2277 | work with the system-supplied definition of ULONG_MAX. The | |
2278 | comparison (f >= ULONG_MAX) always comes out true. It must be a | |
2279 | problem with the compiler constant folding. | |
2280 | ||
2281 | In any case, this workaround should be fine on any two's complement | |
2282 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your | |
2283 | ccflags. | |
2284 | --Andy Dougherty <doughera@lafcol.lafayette.edu> | |
2285 | */ | |
1eb770ff | 2286 | |
2287 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead | |
2288 | of LONG_(MIN/MAX). | |
2289 | -- Kenneth Albanowski <kjahds@kjahds.com> | |
2290 | */ | |
2291 | ||
20cec16a | 2292 | #ifndef MY_UV_MAX |
2293 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) | |
5d94fbed AD |
2294 | #endif |
2295 | ||
ed6116ce LW |
2296 | I32 |
2297 | cast_i32(f) | |
2298 | double f; | |
2299 | { | |
20cec16a | 2300 | if (f >= I32_MAX) |
2301 | return (I32) I32_MAX; | |
2302 | if (f <= I32_MIN) | |
2303 | return (I32) I32_MIN; | |
ed6116ce LW |
2304 | return (I32) f; |
2305 | } | |
a0d0e21e LW |
2306 | |
2307 | IV | |
2308 | cast_iv(f) | |
2309 | double f; | |
2310 | { | |
20cec16a | 2311 | if (f >= IV_MAX) |
2312 | return (IV) IV_MAX; | |
2313 | if (f <= IV_MIN) | |
2314 | return (IV) IV_MIN; | |
a0d0e21e LW |
2315 | return (IV) f; |
2316 | } | |
5d94fbed AD |
2317 | |
2318 | UV | |
2319 | cast_uv(f) | |
2320 | double f; | |
2321 | { | |
20cec16a | 2322 | if (f >= MY_UV_MAX) |
2323 | return (UV) MY_UV_MAX; | |
5d94fbed AD |
2324 | return (UV) f; |
2325 | } | |
2326 | ||
0f85fab0 | 2327 | #endif |
62b28dd9 | 2328 | |
fe14fcc3 | 2329 | #ifndef HAS_RENAME |
79072805 | 2330 | I32 |
62b28dd9 LW |
2331 | same_dirent(a,b) |
2332 | char *a; | |
2333 | char *b; | |
2334 | { | |
93a17b20 LW |
2335 | char *fa = strrchr(a,'/'); |
2336 | char *fb = strrchr(b,'/'); | |
62b28dd9 LW |
2337 | struct stat tmpstatbuf1; |
2338 | struct stat tmpstatbuf2; | |
46fc3d4c | 2339 | SV *tmpsv = sv_newmortal(); |
62b28dd9 LW |
2340 | |
2341 | if (fa) | |
2342 | fa++; | |
2343 | else | |
2344 | fa = a; | |
2345 | if (fb) | |
2346 | fb++; | |
2347 | else | |
2348 | fb = b; | |
2349 | if (strNE(a,b)) | |
2350 | return FALSE; | |
2351 | if (fa == a) | |
46fc3d4c | 2352 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2353 | else |
46fc3d4c | 2354 | sv_setpvn(tmpsv, a, fa - a); |
c6ed36e1 | 2355 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
62b28dd9 LW |
2356 | return FALSE; |
2357 | if (fb == b) | |
46fc3d4c | 2358 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2359 | else |
46fc3d4c | 2360 | sv_setpvn(tmpsv, b, fb - b); |
c6ed36e1 | 2361 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
62b28dd9 LW |
2362 | return FALSE; |
2363 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && | |
2364 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; | |
2365 | } | |
fe14fcc3 LW |
2366 | #endif /* !HAS_RENAME */ |
2367 | ||
55497cff | 2368 | UV |
8ac85365 | 2369 | scan_oct(char *start, I32 len, I32 *retlen) |
fe14fcc3 LW |
2370 | { |
2371 | register char *s = start; | |
55497cff | 2372 | register UV retval = 0; |
2373 | bool overflowed = FALSE; | |
fe14fcc3 | 2374 | |
748a9306 | 2375 | while (len && *s >= '0' && *s <= '7') { |
55497cff | 2376 | register UV n = retval << 3; |
2377 | if (!overflowed && (n >> 3) != retval) { | |
2378 | warn("Integer overflow in octal number"); | |
2379 | overflowed = TRUE; | |
2380 | } | |
2381 | retval = n | (*s++ - '0'); | |
748a9306 | 2382 | len--; |
fe14fcc3 | 2383 | } |
748a9306 LW |
2384 | if (dowarn && len && (*s == '8' || *s == '9')) |
2385 | warn("Illegal octal digit ignored"); | |
fe14fcc3 LW |
2386 | *retlen = s - start; |
2387 | return retval; | |
2388 | } | |
2389 | ||
71be2cbc | 2390 | UV |
8ac85365 | 2391 | scan_hex(char *start, I32 len, I32 *retlen) |
fe14fcc3 LW |
2392 | { |
2393 | register char *s = start; | |
55497cff | 2394 | register UV retval = 0; |
2395 | bool overflowed = FALSE; | |
fe14fcc3 LW |
2396 | char *tmp; |
2397 | ||
4e35701f | 2398 | while (len-- && *s && (tmp = strchr((char *) hexdigit, *s))) { |
55497cff | 2399 | register UV n = retval << 4; |
2400 | if (!overflowed && (n >> 4) != retval) { | |
2401 | warn("Integer overflow in hex number"); | |
2402 | overflowed = TRUE; | |
2403 | } | |
4e35701f | 2404 | retval = n | ((tmp - hexdigit) & 15); |
fe14fcc3 LW |
2405 | s++; |
2406 | } | |
2407 | *retlen = s - start; | |
2408 | return retval; | |
2409 | } | |
760ac839 | 2410 | |
11343788 | 2411 | #ifdef USE_THREADS |
12ca11f6 MB |
2412 | #ifdef FAKE_THREADS |
2413 | /* Very simplistic scheduler for now */ | |
2414 | void | |
2415 | schedule(void) | |
2416 | { | |
c7848ba1 | 2417 | thr = thr->i.next_run; |
12ca11f6 MB |
2418 | } |
2419 | ||
2420 | void | |
2421 | perl_cond_init(cp) | |
2422 | perl_cond *cp; | |
2423 | { | |
2424 | *cp = 0; | |
2425 | } | |
2426 | ||
2427 | void | |
2428 | perl_cond_signal(cp) | |
2429 | perl_cond *cp; | |
2430 | { | |
51dd5992 | 2431 | perl_os_thread t; |
12ca11f6 MB |
2432 | perl_cond cond = *cp; |
2433 | ||
2434 | if (!cond) | |
2435 | return; | |
2436 | t = cond->thread; | |
2437 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
2438 | t->i.next_run = thr->i.next_run; |
2439 | thr->i.next_run->i.prev_run = t; | |
2440 | t->i.prev_run = thr; | |
2441 | thr->i.next_run = t; | |
2442 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
2443 | /* Remove from the wait queue */ |
2444 | *cp = cond->next; | |
2445 | Safefree(cond); | |
2446 | } | |
2447 | ||
2448 | void | |
2449 | perl_cond_broadcast(cp) | |
2450 | perl_cond *cp; | |
2451 | { | |
51dd5992 | 2452 | perl_os_thread t; |
12ca11f6 MB |
2453 | perl_cond cond, cond_next; |
2454 | ||
2455 | for (cond = *cp; cond; cond = cond_next) { | |
2456 | t = cond->thread; | |
2457 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
2458 | t->i.next_run = thr->i.next_run; |
2459 | thr->i.next_run->i.prev_run = t; | |
2460 | t->i.prev_run = thr; | |
2461 | thr->i.next_run = t; | |
2462 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
2463 | /* Remove from the wait queue */ |
2464 | cond_next = cond->next; | |
2465 | Safefree(cond); | |
2466 | } | |
2467 | *cp = 0; | |
2468 | } | |
2469 | ||
2470 | void | |
2471 | perl_cond_wait(cp) | |
2472 | perl_cond *cp; | |
2473 | { | |
2474 | perl_cond cond; | |
2475 | ||
c7848ba1 | 2476 | if (thr->i.next_run == thr) |
12ca11f6 MB |
2477 | croak("panic: perl_cond_wait called by last runnable thread"); |
2478 | ||
0f15f207 | 2479 | New(666, cond, 1, struct perl_wait_queue); |
12ca11f6 MB |
2480 | cond->thread = thr; |
2481 | cond->next = *cp; | |
2482 | *cp = cond; | |
c7848ba1 | 2483 | thr->i.wait_queue = cond; |
12ca11f6 | 2484 | /* Remove ourselves from runnable queue */ |
c7848ba1 MB |
2485 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
2486 | thr->i.prev_run->i.next_run = thr->i.next_run; | |
12ca11f6 MB |
2487 | } |
2488 | #endif /* FAKE_THREADS */ | |
2489 | ||
11343788 | 2490 | #ifdef OLD_PTHREADS_API |
52e1cb5e | 2491 | struct perl_thread * |
11343788 MB |
2492 | getTHR _((void)) |
2493 | { | |
2494 | pthread_addr_t t; | |
2495 | ||
2496 | if (pthread_getspecific(thr_key, &t)) | |
2497 | croak("panic: pthread_getspecific"); | |
52e1cb5e | 2498 | return (struct perl_thread *) t; |
11343788 MB |
2499 | } |
2500 | #endif /* OLD_PTHREADS_API */ | |
f93b4edd MB |
2501 | |
2502 | MAGIC * | |
8ac85365 | 2503 | condpair_magic(SV *sv) |
f93b4edd MB |
2504 | { |
2505 | MAGIC *mg; | |
2506 | ||
2507 | SvUPGRADE(sv, SVt_PVMG); | |
2508 | mg = mg_find(sv, 'm'); | |
2509 | if (!mg) { | |
2510 | condpair_t *cp; | |
2511 | ||
2512 | New(53, cp, 1, condpair_t); | |
2513 | MUTEX_INIT(&cp->mutex); | |
2514 | COND_INIT(&cp->owner_cond); | |
2515 | COND_INIT(&cp->cond); | |
2516 | cp->owner = 0; | |
940cb80d | 2517 | LOCK_SV_MUTEX; |
f93b4edd MB |
2518 | mg = mg_find(sv, 'm'); |
2519 | if (mg) { | |
2520 | /* someone else beat us to initialising it */ | |
940cb80d | 2521 | UNLOCK_SV_MUTEX; |
f93b4edd MB |
2522 | MUTEX_DESTROY(&cp->mutex); |
2523 | COND_DESTROY(&cp->owner_cond); | |
2524 | COND_DESTROY(&cp->cond); | |
2525 | Safefree(cp); | |
2526 | } | |
2527 | else { | |
2528 | sv_magic(sv, Nullsv, 'm', 0, 0); | |
2529 | mg = SvMAGIC(sv); | |
2530 | mg->mg_ptr = (char *)cp; | |
2531 | mg->mg_len = sizeof(cp); | |
940cb80d | 2532 | UNLOCK_SV_MUTEX; |
bc1f4c86 | 2533 | DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 2534 | "%p: condpair_magic %p\n", thr, sv));) |
f93b4edd MB |
2535 | } |
2536 | } | |
2537 | return mg; | |
2538 | } | |
a863c7d1 MB |
2539 | |
2540 | /* | |
199100c8 MB |
2541 | * Make a new perl thread structure using t as a prototype. Some of the |
2542 | * fields for the new thread are copied from the prototype thread, t, | |
2543 | * so t should not be running in perl at the time this function is | |
2544 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the | |
2545 | * thread calling new_struct_thread) clearly satisfies this constraint. | |
a863c7d1 | 2546 | */ |
52e1cb5e JH |
2547 | struct perl_thread * |
2548 | new_struct_thread(struct perl_thread *t) | |
a863c7d1 | 2549 | { |
52e1cb5e | 2550 | struct perl_thread *thr; |
a863c7d1 | 2551 | SV *sv; |
199100c8 MB |
2552 | SV **svp; |
2553 | I32 i; | |
2554 | ||
2555 | sv = newSVpv("", 0); | |
52e1cb5e JH |
2556 | SvGROW(sv, sizeof(struct perl_thread) + 1); |
2557 | SvCUR_set(sv, sizeof(struct perl_thread)); | |
199100c8 | 2558 | thr = (Thread) SvPVX(sv); |
199100c8 | 2559 | /* debug */ |
52e1cb5e | 2560 | memset(thr, 0xab, sizeof(struct perl_thread)); |
199100c8 MB |
2561 | markstack = 0; |
2562 | scopestack = 0; | |
2563 | savestack = 0; | |
2564 | retstack = 0; | |
2565 | dirty = 0; | |
2566 | localizing = 0; | |
2567 | /* end debug */ | |
2568 | ||
2569 | thr->oursv = sv; | |
d55594ae | 2570 | init_stacks(ARGS); |
a863c7d1 | 2571 | |
a863c7d1 | 2572 | curcop = &compiling; |
199100c8 | 2573 | thr->cvcache = newHV(); |
54b9620d | 2574 | thr->threadsv = newAV(); |
a863c7d1 | 2575 | thr->specific = newAV(); |
38a03e6e MB |
2576 | thr->errsv = newSVpv("", 0); |
2577 | thr->errhv = newHV(); | |
a863c7d1 MB |
2578 | thr->flags = THRf_R_JOINABLE; |
2579 | MUTEX_INIT(&thr->mutex); | |
199100c8 MB |
2580 | |
2581 | curcop = t->Tcurcop; /* XXX As good a guess as any? */ | |
2582 | defstash = t->Tdefstash; /* XXX maybe these should */ | |
2583 | curstash = t->Tcurstash; /* always be set to main? */ | |
d55594ae GS |
2584 | |
2585 | ||
2586 | /* top_env needs to be non-zero. It points to an area | |
2587 | in which longjmp() stuff is stored, as C callstack | |
2588 | info there at least is thread specific this has to | |
2589 | be per-thread. Otherwise a 'die' in a thread gives | |
2590 | that thread the C stack of last thread to do an eval {}! | |
2591 | See comments in scope.h | |
2592 | Initialize top entry (as in perl.c for main thread) | |
2593 | */ | |
2594 | start_env.je_prev = NULL; | |
2595 | start_env.je_ret = -1; | |
2596 | start_env.je_mustcatch = TRUE; | |
2597 | top_env = &start_env; | |
2598 | ||
199100c8 MB |
2599 | in_eval = FALSE; |
2600 | restartop = 0; | |
2601 | ||
2602 | tainted = t->Ttainted; | |
2603 | curpm = t->Tcurpm; /* XXX No PMOP ref count */ | |
2604 | nrs = newSVsv(t->Tnrs); | |
2605 | rs = newSVsv(t->Trs); | |
2606 | last_in_gv = (GV*)SvREFCNT_inc(t->Tlast_in_gv); | |
2607 | ofslen = t->Tofslen; | |
2608 | ofs = savepvn(t->Tofs, ofslen); | |
2609 | defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); | |
2610 | chopset = t->Tchopset; | |
2611 | formtarget = newSVsv(t->Tformtarget); | |
2612 | bodytarget = newSVsv(t->Tbodytarget); | |
2613 | toptarget = newSVsv(t->Ttoptarget); | |
2614 | ||
54b9620d MB |
2615 | /* Initialise all per-thread SVs that the template thread used */ |
2616 | svp = AvARRAY(t->threadsv); | |
93965878 | 2617 | for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) { |
199100c8 MB |
2618 | if (*svp && *svp != &sv_undef) { |
2619 | SV *sv = newSVsv(*svp); | |
54b9620d MB |
2620 | av_store(thr->threadsv, i, sv); |
2621 | sv_magic(sv, 0, 0, &threadsv_names[i], 1); | |
199100c8 | 2622 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
54b9620d | 2623 | "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr)); |
199100c8 MB |
2624 | } |
2625 | } | |
940cb80d | 2626 | thr->threadsvp = AvARRAY(thr->threadsv); |
199100c8 | 2627 | |
a863c7d1 MB |
2628 | MUTEX_LOCK(&threads_mutex); |
2629 | nthreads++; | |
199100c8 MB |
2630 | thr->tid = ++threadnum; |
2631 | thr->next = t->next; | |
2632 | thr->prev = t; | |
2633 | t->next = thr; | |
2634 | thr->next->prev = thr; | |
a863c7d1 MB |
2635 | MUTEX_UNLOCK(&threads_mutex); |
2636 | ||
2637 | #ifdef HAVE_THREAD_INTERN | |
2638 | init_thread_intern(thr); | |
a863c7d1 | 2639 | #endif /* HAVE_THREAD_INTERN */ |
a863c7d1 MB |
2640 | return thr; |
2641 | } | |
11343788 | 2642 | #endif /* USE_THREADS */ |
760ac839 LW |
2643 | |
2644 | #ifdef HUGE_VAL | |
2645 | /* | |
2646 | * This hack is to force load of "huge" support from libm.a | |
2647 | * So it is in perl for (say) POSIX to use. | |
2648 | * Needed for SunOS with Sun's 'acc' for example. | |
2649 | */ | |
2650 | double | |
8ac85365 | 2651 | Perl_huge(void) |
760ac839 LW |
2652 | { |
2653 | return HUGE_VAL; | |
2654 | } | |
2655 | #endif | |
4e35701f | 2656 | |
22239a37 NIS |
2657 | #ifdef PERL_GLOBAL_STRUCT |
2658 | struct perl_vars * | |
2659 | Perl_GetVars(void) | |
2660 | { | |
2661 | return &Perl_Vars; | |
2662 | } | |
31fb1209 NIS |
2663 | #endif |
2664 | ||
2665 | char ** | |
2666 | get_op_names(void) | |
2667 | { | |
2668 | return op_name; | |
2669 | } | |
2670 | ||
2671 | char ** | |
2672 | get_op_descs(void) | |
2673 | { | |
2674 | return op_desc; | |
2675 | } |