Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* util.c |
a687059c | 2 | * |
4eb8286e | 3 | * Copyright (c) 1991-1999, 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" |
864dbfa3 | 16 | #define PERL_IN_UTIL_C |
8d063cd8 | 17 | #include "perl.h" |
62b28dd9 | 18 | |
e1dfb34b | 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 | ||
097ee67d JH |
54 | #ifdef I_LOCALE |
55 | # include <locale.h> | |
56 | #endif | |
57 | ||
8d063cd8 | 58 | #define FLUSH |
8d063cd8 | 59 | |
a0d0e21e | 60 | #ifdef LEAKTEST |
a0d0e21e | 61 | |
8c52afec IZ |
62 | long xcount[MAXXCOUNT]; |
63 | long lastxcount[MAXXCOUNT]; | |
64 | long xycount[MAXXCOUNT][MAXYCOUNT]; | |
65 | long lastxycount[MAXXCOUNT][MAXYCOUNT]; | |
66 | ||
a0d0e21e | 67 | #endif |
a863c7d1 | 68 | |
16cebae2 GS |
69 | #if defined(HAS_FCNTL) && defined(F_SETFD) && !defined(FD_CLOEXEC) |
70 | # define FD_CLOEXEC 1 /* NeXT needs this */ | |
71 | #endif | |
72 | ||
f2517201 | 73 | /* paranoid version of system's malloc() */ |
8d063cd8 | 74 | |
a687059c LW |
75 | /* NOTE: Do not call the next three routines directly. Use the macros |
76 | * in handy.h, so that we can easily redefine everything to do tracking of | |
77 | * allocated hunks back to the original New to track down any memory leaks. | |
20cec16a | 78 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c LW |
79 | */ |
80 | ||
bd4080b3 | 81 | Malloc_t |
4f63d024 | 82 | Perl_safesysmalloc(MEM_SIZE size) |
8d063cd8 | 83 | { |
54aff467 | 84 | dTHX; |
bd4080b3 | 85 | Malloc_t ptr; |
55497cff | 86 | #ifdef HAS_64K_LIMIT |
62b28dd9 | 87 | if (size > 0xffff) { |
16cebae2 GS |
88 | PerlIO_printf(PerlIO_stderr(), |
89 | "Allocation too large: %lx\n", size) FLUSH; | |
54aff467 | 90 | my_exit(1); |
62b28dd9 | 91 | } |
55497cff | 92 | #endif /* HAS_64K_LIMIT */ |
34de22dd LW |
93 | #ifdef DEBUGGING |
94 | if ((long)size < 0) | |
4f63d024 | 95 | Perl_croak_nocontext("panic: malloc"); |
34de22dd | 96 | #endif |
6ad3d225 | 97 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
6b88bc9c | 98 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); |
8d063cd8 LW |
99 | if (ptr != Nullch) |
100 | return ptr; | |
3280af22 | 101 | else if (PL_nomemok) |
7c0587c8 | 102 | return Nullch; |
8d063cd8 | 103 | else { |
22c35a8c | 104 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
54aff467 | 105 | my_exit(1); |
4e35701f | 106 | return Nullch; |
8d063cd8 LW |
107 | } |
108 | /*NOTREACHED*/ | |
109 | } | |
110 | ||
f2517201 | 111 | /* paranoid version of system's realloc() */ |
8d063cd8 | 112 | |
bd4080b3 | 113 | Malloc_t |
4f63d024 | 114 | Perl_safesysrealloc(Malloc_t where,MEM_SIZE size) |
8d063cd8 | 115 | { |
54aff467 | 116 | dTHX; |
bd4080b3 | 117 | Malloc_t ptr; |
ecfc5424 | 118 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
6ad3d225 | 119 | Malloc_t PerlMem_realloc(); |
ecfc5424 | 120 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 | 121 | |
55497cff | 122 | #ifdef HAS_64K_LIMIT |
5f05dabc | 123 | if (size > 0xffff) { |
124 | PerlIO_printf(PerlIO_stderr(), | |
125 | "Reallocation too large: %lx\n", size) FLUSH; | |
54aff467 | 126 | my_exit(1); |
5f05dabc | 127 | } |
55497cff | 128 | #endif /* HAS_64K_LIMIT */ |
7614df0c | 129 | if (!size) { |
f2517201 | 130 | safesysfree(where); |
7614df0c JD |
131 | return NULL; |
132 | } | |
133 | ||
378cc40b | 134 | if (!where) |
f2517201 | 135 | return safesysmalloc(size); |
34de22dd LW |
136 | #ifdef DEBUGGING |
137 | if ((long)size < 0) | |
4f63d024 | 138 | Perl_croak_nocontext("panic: realloc"); |
34de22dd | 139 | #endif |
7614df0c | 140 | ptr = PerlMem_realloc(where,size); |
79072805 | 141 | |
0b250b9e GS |
142 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,PL_an++)); |
143 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size)); | |
79072805 | 144 | |
8d063cd8 LW |
145 | if (ptr != Nullch) |
146 | return ptr; | |
3280af22 | 147 | else if (PL_nomemok) |
7c0587c8 | 148 | return Nullch; |
8d063cd8 | 149 | else { |
22c35a8c | 150 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
54aff467 | 151 | my_exit(1); |
4e35701f | 152 | return Nullch; |
8d063cd8 LW |
153 | } |
154 | /*NOTREACHED*/ | |
155 | } | |
156 | ||
f2517201 | 157 | /* safe version of system's free() */ |
8d063cd8 | 158 | |
54310121 | 159 | Free_t |
4f63d024 | 160 | Perl_safesysfree(Malloc_t where) |
8d063cd8 | 161 | { |
54aff467 | 162 | dTHX; |
6b88bc9c | 163 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,PL_an++)); |
378cc40b | 164 | if (where) { |
de3bb511 | 165 | /*SUPPRESS 701*/ |
6ad3d225 | 166 | PerlMem_free(where); |
378cc40b | 167 | } |
8d063cd8 LW |
168 | } |
169 | ||
f2517201 | 170 | /* safe version of system's calloc() */ |
1050c9ca | 171 | |
bd4080b3 | 172 | Malloc_t |
4f63d024 | 173 | Perl_safesyscalloc(MEM_SIZE count, MEM_SIZE size) |
1050c9ca | 174 | { |
54aff467 | 175 | dTHX; |
bd4080b3 | 176 | Malloc_t ptr; |
1050c9ca | 177 | |
55497cff | 178 | #ifdef HAS_64K_LIMIT |
5f05dabc | 179 | if (size * count > 0xffff) { |
180 | PerlIO_printf(PerlIO_stderr(), | |
181 | "Allocation too large: %lx\n", size * count) FLUSH; | |
54aff467 | 182 | my_exit(1); |
5f05dabc | 183 | } |
55497cff | 184 | #endif /* HAS_64K_LIMIT */ |
1050c9ca | 185 | #ifdef DEBUGGING |
186 | if ((long)size < 0 || (long)count < 0) | |
4f63d024 | 187 | Perl_croak_nocontext("panic: calloc"); |
1050c9ca | 188 | #endif |
0b7c1c42 | 189 | size *= count; |
6ad3d225 | 190 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
6b88bc9c | 191 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); |
1050c9ca | 192 | if (ptr != Nullch) { |
193 | memset((void*)ptr, 0, size); | |
194 | return ptr; | |
195 | } | |
3280af22 | 196 | else if (PL_nomemok) |
1050c9ca | 197 | return Nullch; |
198 | else { | |
22c35a8c | 199 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
54aff467 | 200 | my_exit(1); |
4e35701f | 201 | return Nullch; |
1050c9ca | 202 | } |
203 | /*NOTREACHED*/ | |
204 | } | |
205 | ||
a687059c LW |
206 | #ifdef LEAKTEST |
207 | ||
8c52afec IZ |
208 | struct mem_test_strut { |
209 | union { | |
210 | long type; | |
211 | char c[2]; | |
212 | } u; | |
213 | long size; | |
214 | }; | |
215 | ||
216 | # define ALIGN sizeof(struct mem_test_strut) | |
217 | ||
218 | # define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size) | |
219 | # define typeof_chunk(ch) \ | |
220 | (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100) | |
221 | # define set_typeof_chunk(ch,t) \ | |
222 | (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100) | |
223 | #define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \ | |
224 | ? MAXYCOUNT - 1 \ | |
225 | : ( (size) > 40 \ | |
226 | ? ((size) - 1)/8 + 5 \ | |
227 | : ((size) - 1)/4)) | |
8d063cd8 | 228 | |
bd4080b3 | 229 | Malloc_t |
4f63d024 | 230 | Perl_safexmalloc(I32 x, MEM_SIZE size) |
8d063cd8 | 231 | { |
8c52afec | 232 | register char* where = (char*)safemalloc(size + ALIGN); |
8d063cd8 | 233 | |
8c52afec IZ |
234 | xcount[x] += size; |
235 | xycount[x][SIZE_TO_Y(size)]++; | |
236 | set_typeof_chunk(where, x); | |
237 | sizeof_chunk(where) = size; | |
238 | return (Malloc_t)(where + ALIGN); | |
8d063cd8 | 239 | } |
8d063cd8 | 240 | |
bd4080b3 | 241 | Malloc_t |
4f63d024 | 242 | Perl_safexrealloc(Malloc_t wh, MEM_SIZE size) |
a687059c | 243 | { |
8c52afec IZ |
244 | char *where = (char*)wh; |
245 | ||
246 | if (!wh) | |
247 | return safexmalloc(0,size); | |
248 | ||
249 | { | |
250 | MEM_SIZE old = sizeof_chunk(where - ALIGN); | |
251 | int t = typeof_chunk(where - ALIGN); | |
252 | register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN); | |
253 | ||
254 | xycount[t][SIZE_TO_Y(old)]--; | |
255 | xycount[t][SIZE_TO_Y(size)]++; | |
256 | xcount[t] += size - old; | |
257 | sizeof_chunk(new) = size; | |
258 | return (Malloc_t)(new + ALIGN); | |
259 | } | |
a687059c LW |
260 | } |
261 | ||
262 | void | |
4f63d024 | 263 | Perl_safexfree(Malloc_t wh) |
a687059c | 264 | { |
79072805 | 265 | I32 x; |
8c52afec IZ |
266 | char *where = (char*)wh; |
267 | MEM_SIZE size; | |
268 | ||
a687059c LW |
269 | if (!where) |
270 | return; | |
271 | where -= ALIGN; | |
8c52afec | 272 | size = sizeof_chunk(where); |
a687059c | 273 | x = where[0] + 100 * where[1]; |
8c52afec IZ |
274 | xcount[x] -= size; |
275 | xycount[x][SIZE_TO_Y(size)]--; | |
a687059c LW |
276 | safefree(where); |
277 | } | |
278 | ||
bd4080b3 | 279 | Malloc_t |
4f63d024 | 280 | Perl_safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size) |
1050c9ca | 281 | { |
8c52afec IZ |
282 | register char * where = (char*)safexmalloc(x, size * count + ALIGN); |
283 | xcount[x] += size; | |
284 | xycount[x][SIZE_TO_Y(size)]++; | |
285 | memset((void*)(where + ALIGN), 0, size * count); | |
286 | set_typeof_chunk(where, x); | |
287 | sizeof_chunk(where) = size; | |
288 | return (Malloc_t)(where + ALIGN); | |
1050c9ca | 289 | } |
290 | ||
864dbfa3 | 291 | STATIC void |
cea2e8a9 | 292 | S_xstat(pTHX_ int flag) |
8d063cd8 | 293 | { |
8c52afec IZ |
294 | register I32 i, j, total = 0; |
295 | I32 subtot[MAXYCOUNT]; | |
8d063cd8 | 296 | |
8c52afec IZ |
297 | for (j = 0; j < MAXYCOUNT; j++) { |
298 | subtot[j] = 0; | |
299 | } | |
300 | ||
301 | 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 | 302 | for (i = 0; i < MAXXCOUNT; i++) { |
8c52afec IZ |
303 | total += xcount[i]; |
304 | for (j = 0; j < MAXYCOUNT; j++) { | |
305 | subtot[j] += xycount[i][j]; | |
306 | } | |
307 | if (flag == 0 | |
308 | ? xcount[i] /* Have something */ | |
309 | : (flag == 2 | |
310 | ? xcount[i] != lastxcount[i] /* Changed */ | |
311 | : xcount[i] > lastxcount[i])) { /* Growed */ | |
312 | PerlIO_printf(PerlIO_stderr(),"%2d %02d %7ld ", i / 100, i % 100, | |
313 | flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]); | |
a687059c | 314 | lastxcount[i] = xcount[i]; |
8c52afec IZ |
315 | for (j = 0; j < MAXYCOUNT; j++) { |
316 | if ( flag == 0 | |
317 | ? xycount[i][j] /* Have something */ | |
318 | : (flag == 2 | |
319 | ? xycount[i][j] != lastxycount[i][j] /* Changed */ | |
320 | : xycount[i][j] > lastxycount[i][j])) { /* Growed */ | |
321 | PerlIO_printf(PerlIO_stderr(),"%3ld ", | |
322 | flag == 2 | |
323 | ? xycount[i][j] - lastxycount[i][j] | |
324 | : xycount[i][j]); | |
325 | lastxycount[i][j] = xycount[i][j]; | |
326 | } else { | |
327 | PerlIO_printf(PerlIO_stderr(), " . ", xycount[i][j]); | |
328 | } | |
329 | } | |
330 | PerlIO_printf(PerlIO_stderr(), "\n"); | |
331 | } | |
332 | } | |
333 | if (flag != 2) { | |
334 | PerlIO_printf(PerlIO_stderr(), "Total %7ld ", total); | |
335 | for (j = 0; j < MAXYCOUNT; j++) { | |
336 | if (subtot[j]) { | |
337 | PerlIO_printf(PerlIO_stderr(), "%3ld ", subtot[j]); | |
338 | } else { | |
339 | PerlIO_printf(PerlIO_stderr(), " . "); | |
340 | } | |
8d063cd8 | 341 | } |
8c52afec | 342 | PerlIO_printf(PerlIO_stderr(), "\n"); |
8d063cd8 | 343 | } |
8d063cd8 | 344 | } |
a687059c LW |
345 | |
346 | #endif /* LEAKTEST */ | |
8d063cd8 LW |
347 | |
348 | /* copy a string up to some (non-backslashed) delimiter, if any */ | |
349 | ||
350 | char * | |
864dbfa3 | 351 | Perl_delimcpy(pTHX_ register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen) |
8d063cd8 | 352 | { |
fc36a67e | 353 | register I32 tolen; |
354 | for (tolen = 0; from < fromend; from++, tolen++) { | |
378cc40b LW |
355 | if (*from == '\\') { |
356 | if (from[1] == delim) | |
357 | from++; | |
fc36a67e | 358 | else { |
359 | if (to < toend) | |
360 | *to++ = *from; | |
361 | tolen++; | |
362 | from++; | |
363 | } | |
378cc40b | 364 | } |
bedebaa5 | 365 | else if (*from == delim) |
8d063cd8 | 366 | break; |
fc36a67e | 367 | if (to < toend) |
368 | *to++ = *from; | |
8d063cd8 | 369 | } |
bedebaa5 CS |
370 | if (to < toend) |
371 | *to = '\0'; | |
fc36a67e | 372 | *retlen = tolen; |
8d063cd8 LW |
373 | return from; |
374 | } | |
375 | ||
376 | /* return ptr to little string in big string, NULL if not found */ | |
378cc40b | 377 | /* This routine was donated by Corey Satten. */ |
8d063cd8 LW |
378 | |
379 | char * | |
864dbfa3 | 380 | Perl_instr(pTHX_ register const char *big, register const char *little) |
378cc40b | 381 | { |
08105a92 | 382 | register const char *s, *x; |
79072805 | 383 | register I32 first; |
378cc40b | 384 | |
a687059c | 385 | if (!little) |
08105a92 | 386 | return (char*)big; |
a687059c | 387 | first = *little++; |
378cc40b | 388 | if (!first) |
08105a92 | 389 | return (char*)big; |
378cc40b LW |
390 | while (*big) { |
391 | if (*big++ != first) | |
392 | continue; | |
393 | for (x=big,s=little; *s; /**/ ) { | |
394 | if (!*x) | |
395 | return Nullch; | |
396 | if (*s++ != *x++) { | |
397 | s--; | |
398 | break; | |
399 | } | |
400 | } | |
401 | if (!*s) | |
08105a92 | 402 | return (char*)(big-1); |
378cc40b LW |
403 | } |
404 | return Nullch; | |
405 | } | |
8d063cd8 | 406 | |
a687059c LW |
407 | /* same as instr but allow embedded nulls */ |
408 | ||
409 | char * | |
864dbfa3 | 410 | Perl_ninstr(pTHX_ register const char *big, register const char *bigend, const char *little, const char *lend) |
8d063cd8 | 411 | { |
08105a92 | 412 | register const char *s, *x; |
79072805 | 413 | register I32 first = *little; |
08105a92 | 414 | register const char *littleend = lend; |
378cc40b | 415 | |
a0d0e21e | 416 | if (!first && little >= littleend) |
08105a92 | 417 | return (char*)big; |
de3bb511 LW |
418 | if (bigend - big < littleend - little) |
419 | return Nullch; | |
a687059c LW |
420 | bigend -= littleend - little++; |
421 | while (big <= bigend) { | |
422 | if (*big++ != first) | |
423 | continue; | |
424 | for (x=big,s=little; s < littleend; /**/ ) { | |
425 | if (*s++ != *x++) { | |
426 | s--; | |
427 | break; | |
428 | } | |
429 | } | |
430 | if (s >= littleend) | |
08105a92 | 431 | return (char*)(big-1); |
378cc40b | 432 | } |
a687059c LW |
433 | return Nullch; |
434 | } | |
435 | ||
436 | /* reverse of the above--find last substring */ | |
437 | ||
438 | char * | |
864dbfa3 | 439 | Perl_rninstr(pTHX_ register const char *big, const char *bigend, const char *little, const char *lend) |
a687059c | 440 | { |
08105a92 GS |
441 | register const char *bigbeg; |
442 | register const char *s, *x; | |
79072805 | 443 | register I32 first = *little; |
08105a92 | 444 | register const char *littleend = lend; |
a687059c | 445 | |
a0d0e21e | 446 | if (!first && little >= littleend) |
08105a92 | 447 | return (char*)bigend; |
a687059c LW |
448 | bigbeg = big; |
449 | big = bigend - (littleend - little++); | |
450 | while (big >= bigbeg) { | |
451 | if (*big-- != first) | |
452 | continue; | |
453 | for (x=big+2,s=little; s < littleend; /**/ ) { | |
454 | if (*s++ != *x++) { | |
455 | s--; | |
456 | break; | |
457 | } | |
458 | } | |
459 | if (s >= littleend) | |
08105a92 | 460 | return (char*)(big+1); |
378cc40b | 461 | } |
a687059c | 462 | return Nullch; |
378cc40b | 463 | } |
a687059c | 464 | |
bbce6d69 | 465 | /* |
466 | * Set up for a new ctype locale. | |
467 | */ | |
55497cff | 468 | void |
864dbfa3 | 469 | Perl_new_ctype(pTHX_ const char *newctype) |
ef7eada9 | 470 | { |
36477c24 | 471 | #ifdef USE_LOCALE_CTYPE |
472 | ||
bbce6d69 | 473 | int i; |
ef7eada9 | 474 | |
bbce6d69 | 475 | for (i = 0; i < 256; i++) { |
476 | if (isUPPER_LC(i)) | |
22c35a8c | 477 | PL_fold_locale[i] = toLOWER_LC(i); |
bbce6d69 | 478 | else if (isLOWER_LC(i)) |
22c35a8c | 479 | PL_fold_locale[i] = toUPPER_LC(i); |
bbce6d69 | 480 | else |
22c35a8c | 481 | PL_fold_locale[i] = i; |
bbce6d69 | 482 | } |
bbce6d69 | 483 | |
36477c24 | 484 | #endif /* USE_LOCALE_CTYPE */ |
485 | } | |
bbce6d69 | 486 | |
487 | /* | |
488 | * Set up for a new collation locale. | |
489 | */ | |
490 | void | |
864dbfa3 | 491 | Perl_new_collate(pTHX_ const char *newcoll) |
bbce6d69 | 492 | { |
36477c24 | 493 | #ifdef USE_LOCALE_COLLATE |
494 | ||
bbce6d69 | 495 | if (! newcoll) { |
3280af22 NIS |
496 | if (PL_collation_name) { |
497 | ++PL_collation_ix; | |
498 | Safefree(PL_collation_name); | |
499 | PL_collation_name = NULL; | |
500 | PL_collation_standard = TRUE; | |
501 | PL_collxfrm_base = 0; | |
502 | PL_collxfrm_mult = 2; | |
bbce6d69 | 503 | } |
504 | return; | |
505 | } | |
506 | ||
3280af22 NIS |
507 | if (! PL_collation_name || strNE(PL_collation_name, newcoll)) { |
508 | ++PL_collation_ix; | |
509 | Safefree(PL_collation_name); | |
510 | PL_collation_name = savepv(newcoll); | |
511 | PL_collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); | |
bbce6d69 | 512 | |
bbce6d69 | 513 | { |
514 | /* 2: at most so many chars ('a', 'b'). */ | |
515 | /* 50: surely no system expands a char more. */ | |
516 | #define XFRMBUFSIZE (2 * 50) | |
517 | char xbuf[XFRMBUFSIZE]; | |
518 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); | |
519 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); | |
520 | SSize_t mult = fb - fa; | |
521 | if (mult < 1) | |
cea2e8a9 | 522 | Perl_croak(aTHX_ "strxfrm() gets absurd"); |
3280af22 NIS |
523 | PL_collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
524 | PL_collxfrm_mult = mult; | |
bbce6d69 | 525 | } |
bbce6d69 | 526 | } |
bbce6d69 | 527 | |
36477c24 | 528 | #endif /* USE_LOCALE_COLLATE */ |
529 | } | |
bbce6d69 | 530 | |
097ee67d | 531 | void |
51371543 | 532 | Perl_set_numeric_radix(pTHX) |
097ee67d JH |
533 | { |
534 | #ifdef USE_LOCALE_NUMERIC | |
535 | # ifdef HAS_LOCALECONV | |
536 | struct lconv* lc; | |
537 | ||
538 | lc = localeconv(); | |
539 | if (lc && lc->decimal_point) | |
540 | /* We assume that decimal separator aka the radix | |
541 | * character is always a single character. If it | |
542 | * ever is a string, this needs to be rethunk. */ | |
543 | PL_numeric_radix = *lc->decimal_point; | |
544 | else | |
545 | PL_numeric_radix = 0; | |
546 | # endif /* HAS_LOCALECONV */ | |
547 | #else | |
548 | PL_numeric_radix = 0; | |
549 | #endif /* USE_LOCALE_NUMERIC */ | |
550 | } | |
551 | ||
bbce6d69 | 552 | /* |
553 | * Set up for a new numeric locale. | |
554 | */ | |
555 | void | |
864dbfa3 | 556 | Perl_new_numeric(pTHX_ const char *newnum) |
bbce6d69 | 557 | { |
36477c24 | 558 | #ifdef USE_LOCALE_NUMERIC |
559 | ||
bbce6d69 | 560 | if (! newnum) { |
3280af22 NIS |
561 | if (PL_numeric_name) { |
562 | Safefree(PL_numeric_name); | |
563 | PL_numeric_name = NULL; | |
564 | PL_numeric_standard = TRUE; | |
565 | PL_numeric_local = TRUE; | |
bbce6d69 | 566 | } |
567 | return; | |
568 | } | |
569 | ||
3280af22 NIS |
570 | if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) { |
571 | Safefree(PL_numeric_name); | |
572 | PL_numeric_name = savepv(newnum); | |
573 | PL_numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); | |
574 | PL_numeric_local = TRUE; | |
51371543 | 575 | set_numeric_radix(); |
bbce6d69 | 576 | } |
36477c24 | 577 | |
578 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 579 | } |
580 | ||
581 | void | |
864dbfa3 | 582 | Perl_set_numeric_standard(pTHX) |
bbce6d69 | 583 | { |
5f05dabc | 584 | #ifdef USE_LOCALE_NUMERIC |
585 | ||
3280af22 | 586 | if (! PL_numeric_standard) { |
bbce6d69 | 587 | setlocale(LC_NUMERIC, "C"); |
3280af22 NIS |
588 | PL_numeric_standard = TRUE; |
589 | PL_numeric_local = FALSE; | |
bbce6d69 | 590 | } |
5f05dabc | 591 | |
592 | #endif /* USE_LOCALE_NUMERIC */ | |
bbce6d69 | 593 | } |
594 | ||
595 | void | |
864dbfa3 | 596 | Perl_set_numeric_local(pTHX) |
bbce6d69 | 597 | { |
5f05dabc | 598 | #ifdef USE_LOCALE_NUMERIC |
599 | ||
3280af22 NIS |
600 | if (! PL_numeric_local) { |
601 | setlocale(LC_NUMERIC, PL_numeric_name); | |
602 | PL_numeric_standard = FALSE; | |
603 | PL_numeric_local = TRUE; | |
51371543 | 604 | set_numeric_radix(); |
bbce6d69 | 605 | } |
bbce6d69 | 606 | |
36477c24 | 607 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 608 | } |
36477c24 | 609 | |
36477c24 | 610 | /* |
611 | * Initialize locale awareness. | |
612 | */ | |
f0c5b223 | 613 | int |
864dbfa3 | 614 | Perl_init_i18nl10n(pTHX_ int printwarn) |
f0c5b223 TB |
615 | { |
616 | int ok = 1; | |
617 | /* returns | |
618 | * 1 = set ok or not applicable, | |
619 | * 0 = fallback to C locale, | |
620 | * -1 = fallback to C locale failed | |
621 | */ | |
bbce6d69 | 622 | |
36477c24 | 623 | #ifdef USE_LOCALE |
bbce6d69 | 624 | |
36477c24 | 625 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 626 | char *curctype = NULL; |
36477c24 | 627 | #endif /* USE_LOCALE_CTYPE */ |
628 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 629 | char *curcoll = NULL; |
36477c24 | 630 | #endif /* USE_LOCALE_COLLATE */ |
631 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 632 | char *curnum = NULL; |
36477c24 | 633 | #endif /* USE_LOCALE_NUMERIC */ |
3aeabbed JH |
634 | #ifdef __GLIBC__ |
635 | char *language = PerlEnv_getenv("LANGUAGE"); | |
636 | #endif | |
76e3520e GS |
637 | char *lc_all = PerlEnv_getenv("LC_ALL"); |
638 | char *lang = PerlEnv_getenv("LANG"); | |
bbce6d69 | 639 | bool setlocale_failure = FALSE; |
f0c5b223 | 640 | |
02b32252 CS |
641 | #ifdef LOCALE_ENVIRON_REQUIRED |
642 | ||
643 | /* | |
644 | * Ultrix setlocale(..., "") fails if there are no environment | |
645 | * variables from which to get a locale name. | |
646 | */ | |
647 | ||
648 | bool done = FALSE; | |
649 | ||
650 | #ifdef LC_ALL | |
651 | if (lang) { | |
652 | if (setlocale(LC_ALL, "")) | |
653 | done = TRUE; | |
654 | else | |
655 | setlocale_failure = TRUE; | |
656 | } | |
0644c9cb | 657 | if (!setlocale_failure) { |
02b32252 | 658 | #ifdef USE_LOCALE_CTYPE |
0644c9cb IS |
659 | if (! (curctype = |
660 | setlocale(LC_CTYPE, | |
661 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) | |
02b32252 CS |
662 | ? "" : Nullch))) |
663 | setlocale_failure = TRUE; | |
664 | #endif /* USE_LOCALE_CTYPE */ | |
665 | #ifdef USE_LOCALE_COLLATE | |
0644c9cb IS |
666 | if (! (curcoll = |
667 | setlocale(LC_COLLATE, | |
668 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) | |
02b32252 CS |
669 | ? "" : Nullch))) |
670 | setlocale_failure = TRUE; | |
671 | #endif /* USE_LOCALE_COLLATE */ | |
672 | #ifdef USE_LOCALE_NUMERIC | |
0644c9cb IS |
673 | if (! (curnum = |
674 | setlocale(LC_NUMERIC, | |
675 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) | |
02b32252 CS |
676 | ? "" : Nullch))) |
677 | setlocale_failure = TRUE; | |
678 | #endif /* USE_LOCALE_NUMERIC */ | |
679 | } | |
680 | ||
0644c9cb | 681 | #endif /* LC_ALL */ |
02b32252 | 682 | |
0644c9cb | 683 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
5f05dabc | 684 | |
0644c9cb | 685 | #ifdef LC_ALL |
bbce6d69 | 686 | if (! setlocale(LC_ALL, "")) |
687 | setlocale_failure = TRUE; | |
0644c9cb | 688 | #endif /* LC_ALL */ |
bbce6d69 | 689 | |
0644c9cb | 690 | if (!setlocale_failure) { |
36477c24 | 691 | #ifdef USE_LOCALE_CTYPE |
0644c9cb IS |
692 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
693 | setlocale_failure = TRUE; | |
36477c24 | 694 | #endif /* USE_LOCALE_CTYPE */ |
695 | #ifdef USE_LOCALE_COLLATE | |
0644c9cb IS |
696 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
697 | setlocale_failure = TRUE; | |
36477c24 | 698 | #endif /* USE_LOCALE_COLLATE */ |
699 | #ifdef USE_LOCALE_NUMERIC | |
0644c9cb IS |
700 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
701 | setlocale_failure = TRUE; | |
36477c24 | 702 | #endif /* USE_LOCALE_NUMERIC */ |
0644c9cb | 703 | } |
02b32252 | 704 | |
5f05dabc | 705 | if (setlocale_failure) { |
706 | char *p; | |
707 | bool locwarn = (printwarn > 1 || | |
708 | printwarn && | |
76e3520e | 709 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a | 710 | |
5f05dabc | 711 | if (locwarn) { |
712 | #ifdef LC_ALL | |
713 | ||
714 | PerlIO_printf(PerlIO_stderr(), | |
715 | "perl: warning: Setting locale failed.\n"); | |
716 | ||
717 | #else /* !LC_ALL */ | |
718 | ||
ef7eada9 | 719 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 720 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 | 721 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 | 722 | if (! curctype) |
5f05dabc | 723 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 | 724 | #endif /* USE_LOCALE_CTYPE */ |
725 | #ifdef USE_LOCALE_COLLATE | |
bbce6d69 | 726 | if (! curcoll) |
5f05dabc | 727 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 | 728 | #endif /* USE_LOCALE_COLLATE */ |
729 | #ifdef USE_LOCALE_NUMERIC | |
bbce6d69 | 730 | if (! curnum) |
5f05dabc | 731 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 | 732 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 | 733 | PerlIO_printf(PerlIO_stderr(), "\n"); |
734 | ||
5f05dabc | 735 | #endif /* LC_ALL */ |
736 | ||
760ac839 | 737 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 738 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 | 739 | |
3aeabbed JH |
740 | #ifdef __GLIBC__ |
741 | PerlIO_printf(PerlIO_stderr(), | |
742 | "\tLANGUAGE = %c%s%c,\n", | |
743 | language ? '"' : '(', | |
744 | language ? language : "unset", | |
745 | language ? '"' : ')'); | |
746 | #endif | |
747 | ||
ef7eada9 | 748 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 749 | "\tLC_ALL = %c%s%c,\n", |
750 | lc_all ? '"' : '(', | |
751 | lc_all ? lc_all : "unset", | |
752 | lc_all ? '"' : ')'); | |
5f05dabc | 753 | |
754 | { | |
755 | char **e; | |
756 | for (e = environ; *e; e++) { | |
757 | if (strnEQ(*e, "LC_", 3) | |
758 | && strnNE(*e, "LC_ALL=", 7) | |
759 | && (p = strchr(*e, '='))) | |
760 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", | |
fb73857a | 761 | (int)(p - *e), *e, p + 1); |
5f05dabc | 762 | } |
763 | } | |
764 | ||
ef7eada9 | 765 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 | 766 | "\tLANG = %c%s%c\n", |
5f05dabc | 767 | lang ? '"' : '(', |
bbce6d69 | 768 | lang ? lang : "unset", |
769 | lang ? '"' : ')'); | |
ef7eada9 | 770 | |
bbce6d69 | 771 | PerlIO_printf(PerlIO_stderr(), |
772 | " are supported and installed on your system.\n"); | |
5f05dabc | 773 | } |
ef7eada9 | 774 | |
5f05dabc | 775 | #ifdef LC_ALL |
776 | ||
777 | if (setlocale(LC_ALL, "C")) { | |
778 | if (locwarn) | |
779 | PerlIO_printf(PerlIO_stderr(), | |
780 | "perl: warning: Falling back to the standard locale (\"C\").\n"); | |
bbce6d69 | 781 | ok = 0; |
ef7eada9 | 782 | } |
5f05dabc | 783 | else { |
784 | if (locwarn) | |
785 | PerlIO_printf(PerlIO_stderr(), | |
786 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); | |
787 | ok = -1; | |
788 | } | |
bbce6d69 | 789 | |
5f05dabc | 790 | #else /* ! LC_ALL */ |
791 | ||
792 | if (0 | |
36477c24 | 793 | #ifdef USE_LOCALE_CTYPE |
5f05dabc | 794 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 | 795 | #endif /* USE_LOCALE_CTYPE */ |
796 | #ifdef USE_LOCALE_COLLATE | |
5f05dabc | 797 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 | 798 | #endif /* USE_LOCALE_COLLATE */ |
799 | #ifdef USE_LOCALE_NUMERIC | |
5f05dabc | 800 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 | 801 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc | 802 | ) |
803 | { | |
804 | if (locwarn) | |
bbce6d69 | 805 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc | 806 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
807 | ok = -1; | |
bbce6d69 | 808 | } |
5f05dabc | 809 | |
bbce6d69 | 810 | #endif /* ! LC_ALL */ |
5f05dabc | 811 | |
812 | #ifdef USE_LOCALE_CTYPE | |
813 | curctype = setlocale(LC_CTYPE, Nullch); | |
814 | #endif /* USE_LOCALE_CTYPE */ | |
815 | #ifdef USE_LOCALE_COLLATE | |
816 | curcoll = setlocale(LC_COLLATE, Nullch); | |
817 | #endif /* USE_LOCALE_COLLATE */ | |
818 | #ifdef USE_LOCALE_NUMERIC | |
819 | curnum = setlocale(LC_NUMERIC, Nullch); | |
820 | #endif /* USE_LOCALE_NUMERIC */ | |
ef7eada9 JH |
821 | } |
822 | ||
36477c24 | 823 | #ifdef USE_LOCALE_CTYPE |
864dbfa3 | 824 | new_ctype(curctype); |
36477c24 | 825 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 | 826 | |
36477c24 | 827 | #ifdef USE_LOCALE_COLLATE |
864dbfa3 | 828 | new_collate(curcoll); |
36477c24 | 829 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 830 | |
36477c24 | 831 | #ifdef USE_LOCALE_NUMERIC |
864dbfa3 | 832 | new_numeric(curnum); |
36477c24 | 833 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 | 834 | |
36477c24 | 835 | #endif /* USE_LOCALE */ |
ef7eada9 | 836 | |
f0c5b223 TB |
837 | return ok; |
838 | } | |
839 | ||
bbce6d69 | 840 | /* Backwards compatibility. */ |
841 | int | |
864dbfa3 | 842 | Perl_init_i18nl14n(pTHX_ int printwarn) |
bbce6d69 | 843 | { |
864dbfa3 | 844 | return init_i18nl10n(printwarn); |
bbce6d69 | 845 | } |
ef7eada9 | 846 | |
36477c24 | 847 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 | 848 | |
bbce6d69 | 849 | /* |
850 | * mem_collxfrm() is a bit like strxfrm() but with two important | |
851 | * differences. First, it handles embedded NULs. Second, it allocates | |
852 | * a bit more memory than needed for the transformed data itself. | |
853 | * The real transformed data begins at offset sizeof(collationix). | |
854 | * Please see sv_collxfrm() to see how this is used. | |
855 | */ | |
856 | char * | |
864dbfa3 | 857 | Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen) |
bbce6d69 | 858 | { |
859 | char *xbuf; | |
76e3520e | 860 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ |
bbce6d69 | 861 | |
862 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ | |
863 | /* the +1 is for the terminating NUL. */ | |
864 | ||
3280af22 | 865 | xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; |
76e3520e | 866 | New(171, xbuf, xAlloc, char); |
bbce6d69 | 867 | if (! xbuf) |
868 | goto bad; | |
869 | ||
3280af22 NIS |
870 | *(U32*)xbuf = PL_collation_ix; |
871 | xout = sizeof(PL_collation_ix); | |
bbce6d69 | 872 | for (xin = 0; xin < len; ) { |
873 | SSize_t xused; | |
874 | ||
875 | for (;;) { | |
76e3520e | 876 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); |
bbce6d69 | 877 | if (xused == -1) |
878 | goto bad; | |
76e3520e | 879 | if (xused < xAlloc - xout) |
bbce6d69 | 880 | break; |
76e3520e GS |
881 | xAlloc = (2 * xAlloc) + 1; |
882 | Renew(xbuf, xAlloc, char); | |
bbce6d69 | 883 | if (! xbuf) |
884 | goto bad; | |
885 | } | |
ef7eada9 | 886 | |
bbce6d69 | 887 | xin += strlen(s + xin) + 1; |
888 | xout += xused; | |
889 | ||
890 | /* Embedded NULs are understood but silently skipped | |
891 | * because they make no sense in locale collation. */ | |
892 | } | |
ef7eada9 | 893 | |
bbce6d69 | 894 | xbuf[xout] = '\0'; |
3280af22 | 895 | *xlen = xout - sizeof(PL_collation_ix); |
bbce6d69 | 896 | return xbuf; |
897 | ||
898 | bad: | |
899 | Safefree(xbuf); | |
900 | *xlen = 0; | |
901 | return NULL; | |
ef7eada9 JH |
902 | } |
903 | ||
36477c24 | 904 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 905 | |
cf93c79d IZ |
906 | #define FBM_TABLE_OFFSET 2 /* Number of bytes between EOS and table*/ |
907 | ||
908 | /* As a space optimization, we do not compile tables for strings of length | |
909 | 0 and 1, and for strings of length 2 unless FBMcf_TAIL. These are | |
910 | special-cased in fbm_instr(). | |
911 | ||
912 | If FBMcf_TAIL, the table is created as if the string has a trailing \n. */ | |
913 | ||
378cc40b | 914 | void |
864dbfa3 | 915 | Perl_fbm_compile(pTHX_ SV *sv, U32 flags /* not used yet */) |
378cc40b | 916 | { |
942e002e GS |
917 | register U8 *s; |
918 | register U8 *table; | |
79072805 | 919 | register U32 i; |
0b71040e | 920 | STRLEN len; |
79072805 LW |
921 | I32 rarest = 0; |
922 | U32 frequency = 256; | |
923 | ||
cf93c79d IZ |
924 | if (flags & FBMcf_TAIL) |
925 | sv_catpvn(sv, "\n", 1); /* Taken into account in fbm_instr() */ | |
942e002e | 926 | s = (U8*)SvPV_force(sv, len); |
07f14f54 | 927 | (void)SvUPGRADE(sv, SVt_PVBM); |
cf93c79d IZ |
928 | if (len == 0) /* TAIL might be on on a zero-length string. */ |
929 | return; | |
02128f11 | 930 | if (len > 2) { |
cf93c79d IZ |
931 | I32 mlen = len; |
932 | unsigned char *sb; | |
933 | ||
934 | if (mlen > 255) | |
935 | mlen = 255; | |
936 | Sv_Grow(sv,len + 256 + FBM_TABLE_OFFSET); | |
937 | table = (unsigned char*)(SvPVX(sv) + len + FBM_TABLE_OFFSET); | |
938 | s = table - 1 - FBM_TABLE_OFFSET; /* Last char */ | |
02128f11 | 939 | for (i = 0; i < 256; i++) { |
cf93c79d | 940 | table[i] = mlen; |
02128f11 | 941 | } |
cf93c79d | 942 | table[-1] = flags; /* Not used yet */ |
02128f11 | 943 | i = 0; |
cf93c79d IZ |
944 | sb = s - mlen; |
945 | while (s >= sb) { | |
946 | if (table[*s] == mlen) | |
947 | table[*s] = i; | |
948 | s--, i++; | |
949 | } | |
378cc40b | 950 | } |
bbce6d69 | 951 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 | 952 | SvVALID_on(sv); |
378cc40b | 953 | |
463ee0b2 | 954 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 | 955 | for (i = 0; i < len; i++) { |
22c35a8c | 956 | if (PL_freq[s[i]] < frequency) { |
bbce6d69 | 957 | rarest = i; |
22c35a8c | 958 | frequency = PL_freq[s[i]]; |
378cc40b LW |
959 | } |
960 | } | |
79072805 LW |
961 | BmRARE(sv) = s[rarest]; |
962 | BmPREVIOUS(sv) = rarest; | |
cf93c79d IZ |
963 | BmUSEFUL(sv) = 100; /* Initial value */ |
964 | if (flags & FBMcf_TAIL) | |
965 | SvTAIL_on(sv); | |
760ac839 | 966 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b LW |
967 | } |
968 | ||
cf93c79d IZ |
969 | /* If SvTAIL(littlestr), it has a fake '\n' at end. */ |
970 | /* If SvTAIL is actually due to \Z or \z, this gives false positives | |
971 | if multiline */ | |
972 | ||
378cc40b | 973 | char * |
864dbfa3 | 974 | Perl_fbm_instr(pTHX_ unsigned char *big, register unsigned char *bigend, SV *littlestr, U32 flags) |
378cc40b | 975 | { |
a687059c | 976 | register unsigned char *s; |
cf93c79d IZ |
977 | STRLEN l; |
978 | register unsigned char *little = (unsigned char *)SvPV(littlestr,l); | |
979 | register STRLEN littlelen = l; | |
980 | register I32 multiline = flags & FBMrf_MULTILINE; | |
981 | ||
982 | if (bigend - big < littlelen) { | |
983 | check_tail: | |
984 | if ( SvTAIL(littlestr) | |
985 | && (bigend - big == littlelen - 1) | |
986 | && (littlelen == 1 | |
987 | || *big == *little && memEQ(big, little, littlelen - 1))) | |
988 | return (char*)big; | |
989 | return Nullch; | |
990 | } | |
378cc40b | 991 | |
cf93c79d IZ |
992 | if (littlelen <= 2) { /* Special-cased */ |
993 | register char c; | |
994 | ||
995 | if (littlelen == 1) { | |
996 | if (SvTAIL(littlestr) && !multiline) { /* Anchor only! */ | |
997 | /* Know that bigend != big. */ | |
998 | if (bigend[-1] == '\n') | |
999 | return (char *)(bigend - 1); | |
1000 | return (char *) bigend; | |
1001 | } | |
1002 | s = big; | |
1003 | while (s < bigend) { | |
1004 | if (*s == *little) | |
1005 | return (char *)s; | |
1006 | s++; | |
1007 | } | |
1008 | if (SvTAIL(littlestr)) | |
1009 | return (char *) bigend; | |
1010 | return Nullch; | |
1011 | } | |
1012 | if (!littlelen) | |
1013 | return (char*)big; /* Cannot be SvTAIL! */ | |
1014 | ||
1015 | /* littlelen is 2 */ | |
1016 | if (SvTAIL(littlestr) && !multiline) { | |
1017 | if (bigend[-1] == '\n' && bigend[-2] == *little) | |
1018 | return (char*)bigend - 2; | |
1019 | if (bigend[-1] == *little) | |
1020 | return (char*)bigend - 1; | |
1021 | return Nullch; | |
1022 | } | |
1023 | { | |
1024 | /* This should be better than FBM if c1 == c2, and almost | |
1025 | as good otherwise: maybe better since we do less indirection. | |
1026 | And we save a lot of memory by caching no table. */ | |
1027 | register unsigned char c1 = little[0]; | |
1028 | register unsigned char c2 = little[1]; | |
1029 | ||
1030 | s = big + 1; | |
1031 | bigend--; | |
1032 | if (c1 != c2) { | |
1033 | while (s <= bigend) { | |
1034 | if (s[0] == c2) { | |
1035 | if (s[-1] == c1) | |
1036 | return (char*)s - 1; | |
1037 | s += 2; | |
1038 | continue; | |
3fe6f2dc | 1039 | } |
cf93c79d IZ |
1040 | next_chars: |
1041 | if (s[0] == c1) { | |
1042 | if (s == bigend) | |
1043 | goto check_1char_anchor; | |
1044 | if (s[1] == c2) | |
1045 | return (char*)s; | |
1046 | else { | |
1047 | s++; | |
1048 | goto next_chars; | |
1049 | } | |
1050 | } | |
1051 | else | |
1052 | s += 2; | |
1053 | } | |
1054 | goto check_1char_anchor; | |
1055 | } | |
1056 | /* Now c1 == c2 */ | |
1057 | while (s <= bigend) { | |
1058 | if (s[0] == c1) { | |
1059 | if (s[-1] == c1) | |
1060 | return (char*)s - 1; | |
1061 | if (s == bigend) | |
1062 | goto check_1char_anchor; | |
1063 | if (s[1] == c1) | |
1064 | return (char*)s; | |
1065 | s += 3; | |
02128f11 | 1066 | } |
c277df42 | 1067 | else |
cf93c79d | 1068 | s += 2; |
c277df42 | 1069 | } |
c277df42 | 1070 | } |
cf93c79d IZ |
1071 | check_1char_anchor: /* One char and anchor! */ |
1072 | if (SvTAIL(littlestr) && (*bigend == *little)) | |
1073 | return (char *)bigend; /* bigend is already decremented. */ | |
1074 | return Nullch; | |
d48672a2 | 1075 | } |
cf93c79d | 1076 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
bbce6d69 | 1077 | s = bigend - littlelen; |
cf93c79d | 1078 | if (s >= big |
02128f11 | 1079 | && bigend[-1] == '\n' |
cf93c79d IZ |
1080 | && *s == *little |
1081 | /* Automatically of length > 2 */ | |
1082 | && memEQ((char*)s + 1, (char*)little + 1, littlelen - 2)) | |
bbce6d69 | 1083 | return (char*)s; /* how sweet it is */ |
cf93c79d IZ |
1084 | if (s[1] == *little && memEQ((char*)s + 2,(char*)little + 1, |
1085 | littlelen - 2)) | |
1086 | return (char*)s + 1; /* how sweet it is */ | |
02128f11 IZ |
1087 | return Nullch; |
1088 | } | |
cf93c79d IZ |
1089 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
1090 | char *b = ninstr((char*)big,(char*)bigend, | |
1091 | (char*)little, (char*)little + littlelen); | |
1092 | ||
1093 | if (!b && SvTAIL(littlestr)) { /* Automatically multiline! */ | |
1094 | /* Chop \n from littlestr: */ | |
1095 | s = bigend - littlelen + 1; | |
1096 | if (*s == *little && memEQ((char*)s + 1, (char*)little + 1, | |
1097 | littlelen - 2)) | |
3fe6f2dc | 1098 | return (char*)s; |
cf93c79d | 1099 | return Nullch; |
a687059c | 1100 | } |
cf93c79d | 1101 | return b; |
a687059c | 1102 | } |
cf93c79d IZ |
1103 | |
1104 | { /* Do actual FBM. */ | |
1105 | register unsigned char *table = little + littlelen + FBM_TABLE_OFFSET; | |
1106 | register unsigned char *oldlittle; | |
1107 | ||
1108 | if (littlelen > bigend - big) | |
1109 | return Nullch; | |
1110 | --littlelen; /* Last char found by table lookup */ | |
1111 | ||
1112 | s = big + littlelen; | |
1113 | little += littlelen; /* last char */ | |
1114 | oldlittle = little; | |
1115 | if (s < bigend) { | |
1116 | register I32 tmp; | |
1117 | ||
1118 | top2: | |
1119 | /*SUPPRESS 560*/ | |
1120 | if (tmp = table[*s]) { | |
62b28dd9 | 1121 | #ifdef POINTERRIGOR |
cf93c79d IZ |
1122 | if (bigend - s > tmp) { |
1123 | s += tmp; | |
1124 | goto top2; | |
1125 | } | |
bbce6d69 | 1126 | s += tmp; |
62b28dd9 | 1127 | #else |
cf93c79d | 1128 | if ((s += tmp) < bigend) |
62b28dd9 | 1129 | goto top2; |
cf93c79d IZ |
1130 | #endif |
1131 | goto check_end; | |
1132 | } | |
1133 | else { /* less expensive than calling strncmp() */ | |
1134 | register unsigned char *olds = s; | |
1135 | ||
1136 | tmp = littlelen; | |
1137 | ||
1138 | while (tmp--) { | |
1139 | if (*--s == *--little) | |
1140 | continue; | |
1141 | differ: | |
1142 | s = olds + 1; /* here we pay the price for failure */ | |
1143 | little = oldlittle; | |
1144 | if (s < bigend) /* fake up continue to outer loop */ | |
1145 | goto top2; | |
1146 | goto check_end; | |
1147 | } | |
1148 | return (char *)s; | |
a687059c | 1149 | } |
378cc40b | 1150 | } |
cf93c79d IZ |
1151 | check_end: |
1152 | if ( s == bigend && (table[-1] & FBMcf_TAIL) | |
1153 | && memEQ(bigend - littlelen, oldlittle - littlelen, littlelen) ) | |
1154 | return (char*)bigend - littlelen; | |
1155 | return Nullch; | |
378cc40b | 1156 | } |
378cc40b LW |
1157 | } |
1158 | ||
c277df42 IZ |
1159 | /* start_shift, end_shift are positive quantities which give offsets |
1160 | of ends of some substring of bigstr. | |
1161 | If `last' we want the last occurence. | |
1162 | old_posp is the way of communication between consequent calls if | |
1163 | the next call needs to find the . | |
1164 | The initial *old_posp should be -1. | |
cf93c79d IZ |
1165 | |
1166 | Note that we take into account SvTAIL, so one can get extra | |
1167 | optimizations if _ALL flag is set. | |
c277df42 IZ |
1168 | */ |
1169 | ||
cf93c79d IZ |
1170 | /* If SvTAIL is actually due to \Z or \z, this gives false positives |
1171 | if PL_multiline. In fact if !PL_multiline the autoritative answer | |
1172 | is not supported yet. */ | |
1173 | ||
378cc40b | 1174 | char * |
864dbfa3 | 1175 | Perl_screaminstr(pTHX_ SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last) |
378cc40b | 1176 | { |
5c0ca799 | 1177 | dTHR; |
a687059c LW |
1178 | register unsigned char *s, *x; |
1179 | register unsigned char *big; | |
79072805 LW |
1180 | register I32 pos; |
1181 | register I32 previous; | |
1182 | register I32 first; | |
a687059c | 1183 | register unsigned char *little; |
c277df42 | 1184 | register I32 stop_pos; |
a687059c | 1185 | register unsigned char *littleend; |
c277df42 | 1186 | I32 found = 0; |
378cc40b | 1187 | |
c277df42 | 1188 | if (*old_posp == -1 |
3280af22 | 1189 | ? (pos = PL_screamfirst[BmRARE(littlestr)]) < 0 |
cf93c79d IZ |
1190 | : (((pos = *old_posp), pos += PL_screamnext[pos]) == 0)) { |
1191 | cant_find: | |
1192 | if ( BmRARE(littlestr) == '\n' | |
1193 | && BmPREVIOUS(littlestr) == SvCUR(littlestr) - 1) { | |
1194 | little = (unsigned char *)(SvPVX(littlestr)); | |
1195 | littleend = little + SvCUR(littlestr); | |
1196 | first = *little++; | |
1197 | goto check_tail; | |
1198 | } | |
378cc40b | 1199 | return Nullch; |
cf93c79d IZ |
1200 | } |
1201 | ||
463ee0b2 | 1202 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 | 1203 | littleend = little + SvCUR(littlestr); |
378cc40b | 1204 | first = *little++; |
c277df42 | 1205 | /* The value of pos we can start at: */ |
79072805 | 1206 | previous = BmPREVIOUS(littlestr); |
463ee0b2 | 1207 | big = (unsigned char *)(SvPVX(bigstr)); |
c277df42 IZ |
1208 | /* The value of pos we can stop at: */ |
1209 | stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous); | |
cf93c79d IZ |
1210 | if (previous + start_shift > stop_pos) { |
1211 | if (previous + start_shift == stop_pos + 1) /* A fake '\n'? */ | |
1212 | goto check_tail; | |
1213 | return Nullch; | |
1214 | } | |
c277df42 | 1215 | while (pos < previous + start_shift) { |
3280af22 | 1216 | if (!(pos += PL_screamnext[pos])) |
cf93c79d | 1217 | goto cant_find; |
378cc40b | 1218 | } |
de3bb511 | 1219 | #ifdef POINTERRIGOR |
bbce6d69 | 1220 | do { |
ef64f398 | 1221 | if (pos >= stop_pos) break; |
bbce6d69 | 1222 | if (big[pos-previous] != first) |
1223 | continue; | |
1224 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { | |
bbce6d69 | 1225 | if (*s++ != *x++) { |
1226 | s--; | |
1227 | break; | |
de3bb511 | 1228 | } |
bbce6d69 | 1229 | } |
c277df42 IZ |
1230 | if (s == littleend) { |
1231 | *old_posp = pos; | |
1232 | if (!last) return (char *)(big+pos-previous); | |
1233 | found = 1; | |
1234 | } | |
6b88bc9c | 1235 | } while ( pos += PL_screamnext[pos] ); |
c277df42 | 1236 | return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch; |
de3bb511 LW |
1237 | #else /* !POINTERRIGOR */ |
1238 | big -= previous; | |
bbce6d69 | 1239 | do { |
ef64f398 | 1240 | if (pos >= stop_pos) break; |
bbce6d69 | 1241 | if (big[pos] != first) |
1242 | continue; | |
1243 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { | |
bbce6d69 | 1244 | if (*s++ != *x++) { |
1245 | s--; | |
1246 | break; | |
378cc40b | 1247 | } |
bbce6d69 | 1248 | } |
c277df42 IZ |
1249 | if (s == littleend) { |
1250 | *old_posp = pos; | |
1251 | if (!last) return (char *)(big+pos); | |
1252 | found = 1; | |
1253 | } | |
3280af22 | 1254 | } while ( pos += PL_screamnext[pos] ); |
cf93c79d IZ |
1255 | if (last && found) |
1256 | return (char *)(big+(*old_posp)); | |
de3bb511 | 1257 | #endif /* POINTERRIGOR */ |
cf93c79d IZ |
1258 | check_tail: |
1259 | if (!SvTAIL(littlestr) || (end_shift > 0)) | |
1260 | return Nullch; | |
1261 | /* Ignore the trailing "\n". This code is not microoptimized */ | |
1262 | big = (unsigned char *)(SvPVX(bigstr) + SvCUR(bigstr)); | |
1263 | stop_pos = littleend - little; /* Actual littlestr len */ | |
1264 | if (stop_pos == 0) | |
1265 | return (char*)big; | |
1266 | big -= stop_pos; | |
1267 | if (*big == first | |
1268 | && ((stop_pos == 1) || memEQ(big + 1, little, stop_pos - 1))) | |
1269 | return (char*)big; | |
1270 | return Nullch; | |
8d063cd8 LW |
1271 | } |
1272 | ||
79072805 | 1273 | I32 |
864dbfa3 | 1274 | Perl_ibcmp(pTHX_ const char *s1, const char *s2, register I32 len) |
79072805 | 1275 | { |
bbce6d69 | 1276 | register U8 *a = (U8 *)s1; |
1277 | register U8 *b = (U8 *)s2; | |
79072805 | 1278 | while (len--) { |
22c35a8c | 1279 | if (*a != *b && *a != PL_fold[*b]) |
bbce6d69 | 1280 | return 1; |
1281 | a++,b++; | |
1282 | } | |
1283 | return 0; | |
1284 | } | |
1285 | ||
1286 | I32 | |
864dbfa3 | 1287 | Perl_ibcmp_locale(pTHX_ const char *s1, const char *s2, register I32 len) |
bbce6d69 | 1288 | { |
1289 | register U8 *a = (U8 *)s1; | |
1290 | register U8 *b = (U8 *)s2; | |
1291 | while (len--) { | |
22c35a8c | 1292 | if (*a != *b && *a != PL_fold_locale[*b]) |
bbce6d69 | 1293 | return 1; |
1294 | a++,b++; | |
79072805 LW |
1295 | } |
1296 | return 0; | |
1297 | } | |
1298 | ||
8d063cd8 LW |
1299 | /* copy a string to a safe spot */ |
1300 | ||
1301 | char * | |
864dbfa3 | 1302 | Perl_savepv(pTHX_ const char *sv) |
8d063cd8 | 1303 | { |
a687059c | 1304 | register char *newaddr; |
8d063cd8 | 1305 | |
79072805 LW |
1306 | New(902,newaddr,strlen(sv)+1,char); |
1307 | (void)strcpy(newaddr,sv); | |
8d063cd8 LW |
1308 | return newaddr; |
1309 | } | |
1310 | ||
a687059c LW |
1311 | /* same thing but with a known length */ |
1312 | ||
1313 | char * | |
864dbfa3 | 1314 | Perl_savepvn(pTHX_ const char *sv, register I32 len) |
a687059c LW |
1315 | { |
1316 | register char *newaddr; | |
1317 | ||
1318 | New(903,newaddr,len+1,char); | |
79072805 | 1319 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c LW |
1320 | newaddr[len] = '\0'; /* is now */ |
1321 | return newaddr; | |
1322 | } | |
1323 | ||
cea2e8a9 | 1324 | /* the SV for Perl_form() and mess() is not kept in an arena */ |
fc36a67e | 1325 | |
76e3520e | 1326 | STATIC SV * |
cea2e8a9 | 1327 | S_mess_alloc(pTHX) |
fc36a67e | 1328 | { |
e72dc28c | 1329 | dTHR; |
fc36a67e | 1330 | SV *sv; |
1331 | XPVMG *any; | |
1332 | ||
e72dc28c GS |
1333 | if (!PL_dirty) |
1334 | return sv_2mortal(newSVpvn("",0)); | |
1335 | ||
0372dbb6 GS |
1336 | if (PL_mess_sv) |
1337 | return PL_mess_sv; | |
1338 | ||
fc36a67e | 1339 | /* Create as PVMG now, to avoid any upgrading later */ |
1340 | New(905, sv, 1, SV); | |
1341 | Newz(905, any, 1, XPVMG); | |
1342 | SvFLAGS(sv) = SVt_PVMG; | |
1343 | SvANY(sv) = (void*)any; | |
1344 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ | |
e72dc28c | 1345 | PL_mess_sv = sv; |
fc36a67e | 1346 | return sv; |
1347 | } | |
1348 | ||
c5be433b | 1349 | #if defined(PERL_IMPLICIT_CONTEXT) |
cea2e8a9 GS |
1350 | char * |
1351 | Perl_form_nocontext(const char* pat, ...) | |
1352 | { | |
1353 | dTHX; | |
c5be433b | 1354 | char *retval; |
cea2e8a9 GS |
1355 | va_list args; |
1356 | va_start(args, pat); | |
c5be433b | 1357 | retval = vform(pat, &args); |
cea2e8a9 | 1358 | va_end(args); |
c5be433b | 1359 | return retval; |
cea2e8a9 | 1360 | } |
c5be433b | 1361 | #endif /* PERL_IMPLICIT_CONTEXT */ |
cea2e8a9 | 1362 | |
8990e307 | 1363 | char * |
864dbfa3 | 1364 | Perl_form(pTHX_ const char* pat, ...) |
8990e307 | 1365 | { |
c5be433b | 1366 | char *retval; |
46fc3d4c | 1367 | va_list args; |
46fc3d4c | 1368 | va_start(args, pat); |
c5be433b | 1369 | retval = vform(pat, &args); |
46fc3d4c | 1370 | va_end(args); |
c5be433b GS |
1371 | return retval; |
1372 | } | |
1373 | ||
1374 | char * | |
1375 | Perl_vform(pTHX_ const char *pat, va_list *args) | |
1376 | { | |
1377 | SV *sv = mess_alloc(); | |
1378 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
e72dc28c | 1379 | return SvPVX(sv); |
46fc3d4c | 1380 | } |
a687059c | 1381 | |
06bf62c7 | 1382 | SV * |
864dbfa3 | 1383 | Perl_mess(pTHX_ const char *pat, va_list *args) |
46fc3d4c | 1384 | { |
e72dc28c | 1385 | SV *sv = mess_alloc(); |
46fc3d4c | 1386 | static char dgd[] = " during global destruction.\n"; |
1387 | ||
fc36a67e | 1388 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 1389 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
e858de61 | 1390 | dTHR; |
cf2093f6 | 1391 | #ifdef IV_IS_QUAD |
b9c39e73 | 1392 | if (PL_curcop->cop_line) |
cf2093f6 JH |
1393 | Perl_sv_catpvf(aTHX_ sv, " at %_ line %" PERL_PRId64, |
1394 | GvSV(PL_curcop->cop_filegv), (IV)PL_curcop->cop_line); | |
1395 | #else | |
b9c39e73 | 1396 | if (PL_curcop->cop_line) |
cea2e8a9 | 1397 | Perl_sv_catpvf(aTHX_ sv, " at %_ line %ld", |
515f54a1 | 1398 | GvSV(PL_curcop->cop_filegv), (long)PL_curcop->cop_line); |
cf2093f6 | 1399 | #endif |
515f54a1 GS |
1400 | if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) { |
1401 | bool line_mode = (RsSIMPLE(PL_rs) && | |
7c1e0849 | 1402 | SvCUR(PL_rs) == 1 && *SvPVX(PL_rs) == '\n'); |
cf2093f6 JH |
1403 | #ifdef IV_IS_QUAD |
1404 | Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %" PERL_PRId64, | |
1405 | PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv), | |
1406 | line_mode ? "line" : "chunk", | |
1407 | (IV)IoLINES(GvIOp(PL_last_in_gv))); | |
1408 | #else | |
cea2e8a9 | 1409 | Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %ld", |
515f54a1 GS |
1410 | PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv), |
1411 | line_mode ? "line" : "chunk", | |
1412 | (long)IoLINES(GvIOp(PL_last_in_gv))); | |
cf2093f6 | 1413 | #endif |
a687059c | 1414 | } |
9efbc0eb | 1415 | #ifdef USE_THREADS |
e8e6f333 GS |
1416 | if (thr->tid) |
1417 | Perl_sv_catpvf(aTHX_ sv, " thread %ld", thr->tid); | |
9efbc0eb | 1418 | #endif |
515f54a1 | 1419 | sv_catpv(sv, PL_dirty ? dgd : ".\n"); |
a687059c | 1420 | } |
06bf62c7 | 1421 | return sv; |
a687059c LW |
1422 | } |
1423 | ||
c5be433b GS |
1424 | OP * |
1425 | Perl_vdie(pTHX_ const char* pat, va_list *args) | |
36477c24 | 1426 | { |
5dc0d613 | 1427 | dTHR; |
36477c24 | 1428 | char *message; |
3280af22 | 1429 | int was_in_eval = PL_in_eval; |
36477c24 | 1430 | HV *stash; |
1431 | GV *gv; | |
1432 | CV *cv; | |
06bf62c7 GS |
1433 | SV *msv; |
1434 | STRLEN msglen; | |
36477c24 | 1435 | |
8b73bbec | 1436 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
199100c8 | 1437 | "%p: die: curstack = %p, mainstack = %p\n", |
533c011a | 1438 | thr, PL_curstack, PL_mainstack)); |
36477c24 | 1439 | |
06bf62c7 | 1440 | if (pat) { |
cea2e8a9 | 1441 | msv = mess(pat, args); |
06bf62c7 GS |
1442 | message = SvPV(msv,msglen); |
1443 | } | |
1444 | else { | |
1445 | message = Nullch; | |
1446 | } | |
36477c24 | 1447 | |
8b73bbec | 1448 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
199100c8 | 1449 | "%p: die: message = %s\ndiehook = %p\n", |
533c011a | 1450 | thr, message, PL_diehook)); |
3280af22 | 1451 | if (PL_diehook) { |
cea2e8a9 | 1452 | /* sv_2cv might call Perl_croak() */ |
3280af22 | 1453 | SV *olddiehook = PL_diehook; |
1738f5c4 | 1454 | ENTER; |
3280af22 NIS |
1455 | SAVESPTR(PL_diehook); |
1456 | PL_diehook = Nullsv; | |
1738f5c4 CS |
1457 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1458 | LEAVE; | |
1459 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1460 | dSP; | |
774d564b | 1461 | SV *msg; |
1462 | ||
1463 | ENTER; | |
79cb57f6 | 1464 | if (message) { |
06bf62c7 | 1465 | msg = newSVpvn(message, msglen); |
4e6ea2c3 GS |
1466 | SvREADONLY_on(msg); |
1467 | SAVEFREESV(msg); | |
1468 | } | |
1469 | else { | |
1470 | msg = ERRSV; | |
1471 | } | |
1738f5c4 | 1472 | |
e788e7d3 | 1473 | PUSHSTACKi(PERLSI_DIEHOOK); |
924508f0 | 1474 | PUSHMARK(SP); |
1738f5c4 CS |
1475 | XPUSHs(msg); |
1476 | PUTBACK; | |
a7c6d244 NIS |
1477 | /* HACK - REVISIT - avoid CATCH_SET(TRUE) in call_sv() |
1478 | or we come back here due to a JMPENV_JMP() and do | |
1479 | a POPSTACK - but die_where() will have already done | |
1480 | one as it unwound - NI-S 1999/08/14 */ | |
1481 | call_sv((SV*)cv, G_DISCARD|G_NOCATCH); | |
d3acc0f7 | 1482 | POPSTACK; |
774d564b | 1483 | LEAVE; |
1738f5c4 | 1484 | } |
36477c24 | 1485 | } |
1486 | ||
06bf62c7 | 1487 | PL_restartop = die_where(message, msglen); |
8b73bbec | 1488 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
7c06b590 | 1489 | "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n", |
533c011a | 1490 | thr, PL_restartop, was_in_eval, PL_top_env)); |
3280af22 | 1491 | if ((!PL_restartop && was_in_eval) || PL_top_env->je_prev) |
6224f72b | 1492 | JMPENV_JUMP(3); |
3280af22 | 1493 | return PL_restartop; |
36477c24 | 1494 | } |
1495 | ||
c5be433b | 1496 | #if defined(PERL_IMPLICIT_CONTEXT) |
cea2e8a9 GS |
1497 | OP * |
1498 | Perl_die_nocontext(const char* pat, ...) | |
a687059c | 1499 | { |
cea2e8a9 GS |
1500 | dTHX; |
1501 | OP *o; | |
a687059c | 1502 | va_list args; |
cea2e8a9 | 1503 | va_start(args, pat); |
c5be433b | 1504 | o = vdie(pat, &args); |
cea2e8a9 GS |
1505 | va_end(args); |
1506 | return o; | |
1507 | } | |
c5be433b | 1508 | #endif /* PERL_IMPLICIT_CONTEXT */ |
cea2e8a9 GS |
1509 | |
1510 | OP * | |
1511 | Perl_die(pTHX_ const char* pat, ...) | |
1512 | { | |
1513 | OP *o; | |
1514 | va_list args; | |
1515 | va_start(args, pat); | |
c5be433b | 1516 | o = vdie(pat, &args); |
cea2e8a9 GS |
1517 | va_end(args); |
1518 | return o; | |
1519 | } | |
1520 | ||
c5be433b GS |
1521 | void |
1522 | Perl_vcroak(pTHX_ const char* pat, va_list *args) | |
cea2e8a9 GS |
1523 | { |
1524 | dTHR; | |
de3bb511 | 1525 | char *message; |
748a9306 LW |
1526 | HV *stash; |
1527 | GV *gv; | |
1528 | CV *cv; | |
06bf62c7 GS |
1529 | SV *msv; |
1530 | STRLEN msglen; | |
a687059c | 1531 | |
cea2e8a9 | 1532 | msv = mess(pat, args); |
06bf62c7 | 1533 | message = SvPV(msv,msglen); |
8b73bbec | 1534 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
3280af22 | 1535 | if (PL_diehook) { |
cea2e8a9 | 1536 | /* sv_2cv might call Perl_croak() */ |
3280af22 | 1537 | SV *olddiehook = PL_diehook; |
1738f5c4 | 1538 | ENTER; |
3280af22 NIS |
1539 | SAVESPTR(PL_diehook); |
1540 | PL_diehook = Nullsv; | |
20cec16a | 1541 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 CS |
1542 | LEAVE; |
1543 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1544 | dSP; |
774d564b | 1545 | SV *msg; |
1546 | ||
1547 | ENTER; | |
06bf62c7 | 1548 | msg = newSVpvn(message, msglen); |
774d564b | 1549 | SvREADONLY_on(msg); |
1550 | SAVEFREESV(msg); | |
20cec16a | 1551 | |
e788e7d3 | 1552 | PUSHSTACKi(PERLSI_DIEHOOK); |
924508f0 | 1553 | PUSHMARK(SP); |
1738f5c4 | 1554 | XPUSHs(msg); |
20cec16a | 1555 | PUTBACK; |
864dbfa3 | 1556 | call_sv((SV*)cv, G_DISCARD); |
d3acc0f7 | 1557 | POPSTACK; |
774d564b | 1558 | LEAVE; |
20cec16a | 1559 | } |
748a9306 | 1560 | } |
3280af22 | 1561 | if (PL_in_eval) { |
06bf62c7 | 1562 | PL_restartop = die_where(message, msglen); |
6224f72b | 1563 | JMPENV_JUMP(3); |
a0d0e21e | 1564 | } |
d175a3f0 GS |
1565 | { |
1566 | #ifdef USE_SFIO | |
1567 | /* SFIO can really mess with your errno */ | |
1568 | int e = errno; | |
1569 | #endif | |
06bf62c7 | 1570 | PerlIO_write(PerlIO_stderr(), message, msglen); |
d175a3f0 GS |
1571 | (void)PerlIO_flush(PerlIO_stderr()); |
1572 | #ifdef USE_SFIO | |
1573 | errno = e; | |
1574 | #endif | |
1575 | } | |
f86702cc | 1576 | my_failure_exit(); |
a687059c LW |
1577 | } |
1578 | ||
c5be433b | 1579 | #if defined(PERL_IMPLICIT_CONTEXT) |
8990e307 | 1580 | void |
cea2e8a9 | 1581 | Perl_croak_nocontext(const char *pat, ...) |
a687059c | 1582 | { |
cea2e8a9 | 1583 | dTHX; |
a687059c | 1584 | va_list args; |
cea2e8a9 | 1585 | va_start(args, pat); |
c5be433b | 1586 | vcroak(pat, &args); |
cea2e8a9 GS |
1587 | /* NOTREACHED */ |
1588 | va_end(args); | |
1589 | } | |
1590 | #endif /* PERL_IMPLICIT_CONTEXT */ | |
1591 | ||
1592 | void | |
1593 | Perl_croak(pTHX_ const char *pat, ...) | |
1594 | { | |
1595 | va_list args; | |
1596 | va_start(args, pat); | |
c5be433b | 1597 | vcroak(pat, &args); |
cea2e8a9 GS |
1598 | /* NOTREACHED */ |
1599 | va_end(args); | |
1600 | } | |
1601 | ||
c5be433b GS |
1602 | void |
1603 | Perl_vwarn(pTHX_ const char* pat, va_list *args) | |
cea2e8a9 | 1604 | { |
de3bb511 | 1605 | char *message; |
748a9306 LW |
1606 | HV *stash; |
1607 | GV *gv; | |
1608 | CV *cv; | |
06bf62c7 GS |
1609 | SV *msv; |
1610 | STRLEN msglen; | |
a687059c | 1611 | |
cea2e8a9 | 1612 | msv = mess(pat, args); |
06bf62c7 | 1613 | message = SvPV(msv, msglen); |
a687059c | 1614 | |
3280af22 | 1615 | if (PL_warnhook) { |
cea2e8a9 | 1616 | /* sv_2cv might call Perl_warn() */ |
11343788 | 1617 | dTHR; |
3280af22 | 1618 | SV *oldwarnhook = PL_warnhook; |
1738f5c4 | 1619 | ENTER; |
3280af22 NIS |
1620 | SAVESPTR(PL_warnhook); |
1621 | PL_warnhook = Nullsv; | |
20cec16a | 1622 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 CS |
1623 | LEAVE; |
1624 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
20cec16a | 1625 | dSP; |
774d564b | 1626 | SV *msg; |
1627 | ||
1628 | ENTER; | |
06bf62c7 | 1629 | msg = newSVpvn(message, msglen); |
774d564b | 1630 | SvREADONLY_on(msg); |
1631 | SAVEFREESV(msg); | |
1632 | ||
e788e7d3 | 1633 | PUSHSTACKi(PERLSI_WARNHOOK); |
924508f0 | 1634 | PUSHMARK(SP); |
774d564b | 1635 | XPUSHs(msg); |
20cec16a | 1636 | PUTBACK; |
864dbfa3 | 1637 | call_sv((SV*)cv, G_DISCARD); |
d3acc0f7 | 1638 | POPSTACK; |
774d564b | 1639 | LEAVE; |
20cec16a | 1640 | return; |
1641 | } | |
748a9306 | 1642 | } |
06bf62c7 | 1643 | PerlIO_write(PerlIO_stderr(), message, msglen); |
a687059c | 1644 | #ifdef LEAKTEST |
8c52afec IZ |
1645 | DEBUG_L(*message == '!' |
1646 | ? (xstat(message[1]=='!' | |
1647 | ? (message[2]=='!' ? 2 : 1) | |
1648 | : 0) | |
1649 | , 0) | |
1650 | : 0); | |
a687059c | 1651 | #endif |
20cec16a | 1652 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c | 1653 | } |
8d063cd8 | 1654 | |
c5be433b | 1655 | #if defined(PERL_IMPLICIT_CONTEXT) |
cea2e8a9 GS |
1656 | void |
1657 | Perl_warn_nocontext(const char *pat, ...) | |
1658 | { | |
1659 | dTHX; | |
1660 | va_list args; | |
1661 | va_start(args, pat); | |
c5be433b | 1662 | vwarn(pat, &args); |
cea2e8a9 GS |
1663 | va_end(args); |
1664 | } | |
1665 | #endif /* PERL_IMPLICIT_CONTEXT */ | |
1666 | ||
1667 | void | |
1668 | Perl_warn(pTHX_ const char *pat, ...) | |
1669 | { | |
1670 | va_list args; | |
1671 | va_start(args, pat); | |
c5be433b | 1672 | vwarn(pat, &args); |
cea2e8a9 GS |
1673 | va_end(args); |
1674 | } | |
1675 | ||
c5be433b GS |
1676 | #if defined(PERL_IMPLICIT_CONTEXT) |
1677 | void | |
1678 | Perl_warner_nocontext(U32 err, const char *pat, ...) | |
1679 | { | |
1680 | dTHX; | |
1681 | va_list args; | |
1682 | va_start(args, pat); | |
1683 | vwarner(err, pat, &args); | |
1684 | va_end(args); | |
1685 | } | |
1686 | #endif /* PERL_IMPLICIT_CONTEXT */ | |
1687 | ||
599cee73 | 1688 | void |
864dbfa3 | 1689 | Perl_warner(pTHX_ U32 err, const char* pat,...) |
599cee73 PM |
1690 | { |
1691 | va_list args; | |
c5be433b GS |
1692 | va_start(args, pat); |
1693 | vwarner(err, pat, &args); | |
1694 | va_end(args); | |
1695 | } | |
1696 | ||
1697 | void | |
1698 | Perl_vwarner(pTHX_ U32 err, const char* pat, va_list* args) | |
1699 | { | |
1700 | dTHR; | |
599cee73 PM |
1701 | char *message; |
1702 | HV *stash; | |
1703 | GV *gv; | |
1704 | CV *cv; | |
06bf62c7 GS |
1705 | SV *msv; |
1706 | STRLEN msglen; | |
599cee73 | 1707 | |
c5be433b | 1708 | msv = mess(pat, args); |
06bf62c7 | 1709 | message = SvPV(msv, msglen); |
599cee73 PM |
1710 | |
1711 | if (ckDEAD(err)) { | |
1712 | #ifdef USE_THREADS | |
d008e5eb | 1713 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
599cee73 PM |
1714 | #endif /* USE_THREADS */ |
1715 | if (PL_diehook) { | |
cea2e8a9 | 1716 | /* sv_2cv might call Perl_croak() */ |
599cee73 PM |
1717 | SV *olddiehook = PL_diehook; |
1718 | ENTER; | |
1719 | SAVESPTR(PL_diehook); | |
1720 | PL_diehook = Nullsv; | |
1721 | cv = sv_2cv(olddiehook, &stash, &gv, 0); | |
1722 | LEAVE; | |
1723 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1724 | dSP; | |
1725 | SV *msg; | |
1726 | ||
1727 | ENTER; | |
06bf62c7 | 1728 | msg = newSVpvn(message, msglen); |
599cee73 PM |
1729 | SvREADONLY_on(msg); |
1730 | SAVEFREESV(msg); | |
1731 | ||
1732 | PUSHMARK(sp); | |
1733 | XPUSHs(msg); | |
1734 | PUTBACK; | |
864dbfa3 | 1735 | call_sv((SV*)cv, G_DISCARD); |
599cee73 PM |
1736 | |
1737 | LEAVE; | |
1738 | } | |
1739 | } | |
1740 | if (PL_in_eval) { | |
06bf62c7 | 1741 | PL_restartop = die_where(message, msglen); |
599cee73 PM |
1742 | JMPENV_JUMP(3); |
1743 | } | |
06bf62c7 | 1744 | PerlIO_write(PerlIO_stderr(), message, msglen); |
599cee73 PM |
1745 | (void)PerlIO_flush(PerlIO_stderr()); |
1746 | my_failure_exit(); | |
1747 | ||
1748 | } | |
1749 | else { | |
1750 | if (PL_warnhook) { | |
cea2e8a9 | 1751 | /* sv_2cv might call Perl_warn() */ |
599cee73 PM |
1752 | dTHR; |
1753 | SV *oldwarnhook = PL_warnhook; | |
1754 | ENTER; | |
1755 | SAVESPTR(PL_warnhook); | |
1756 | PL_warnhook = Nullsv; | |
1757 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); | |
1758 | LEAVE; | |
1759 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { | |
1760 | dSP; | |
1761 | SV *msg; | |
1762 | ||
1763 | ENTER; | |
06bf62c7 | 1764 | msg = newSVpvn(message, msglen); |
599cee73 PM |
1765 | SvREADONLY_on(msg); |
1766 | SAVEFREESV(msg); | |
1767 | ||
1768 | PUSHMARK(sp); | |
1769 | XPUSHs(msg); | |
1770 | PUTBACK; | |
864dbfa3 | 1771 | call_sv((SV*)cv, G_DISCARD); |
599cee73 PM |
1772 | |
1773 | LEAVE; | |
1774 | return; | |
1775 | } | |
1776 | } | |
06bf62c7 | 1777 | PerlIO_write(PerlIO_stderr(), message, msglen); |
599cee73 PM |
1778 | #ifdef LEAKTEST |
1779 | DEBUG_L(xstat()); | |
1780 | #endif | |
1781 | (void)PerlIO_flush(PerlIO_stderr()); | |
1782 | } | |
1783 | } | |
1784 | ||
a0d0e21e | 1785 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
2c2d71f5 | 1786 | #if !defined(WIN32) && !defined(CYGWIN) |
8d063cd8 | 1787 | void |
864dbfa3 | 1788 | Perl_my_setenv(pTHX_ char *nam, char *val) |
8d063cd8 | 1789 | { |
f2517201 GS |
1790 | #ifndef PERL_USE_SAFE_PUTENV |
1791 | /* most putenv()s leak, so we manipulate environ directly */ | |
79072805 | 1792 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 | 1793 | |
3280af22 | 1794 | if (environ == PL_origenviron) { /* need we copy environment? */ |
79072805 LW |
1795 | I32 j; |
1796 | I32 max; | |
fe14fcc3 LW |
1797 | char **tmpenv; |
1798 | ||
de3bb511 | 1799 | /*SUPPRESS 530*/ |
fe14fcc3 | 1800 | for (max = i; environ[max]; max++) ; |
f2517201 GS |
1801 | tmpenv = (char**)safesysmalloc((max+2) * sizeof(char*)); |
1802 | for (j=0; j<max; j++) { /* copy environment */ | |
1803 | tmpenv[j] = (char*)safesysmalloc((strlen(environ[j])+1)*sizeof(char)); | |
1804 | strcpy(tmpenv[j], environ[j]); | |
1805 | } | |
fe14fcc3 LW |
1806 | tmpenv[max] = Nullch; |
1807 | environ = tmpenv; /* tell exec where it is now */ | |
1808 | } | |
a687059c | 1809 | if (!val) { |
f2517201 | 1810 | safesysfree(environ[i]); |
a687059c LW |
1811 | while (environ[i]) { |
1812 | environ[i] = environ[i+1]; | |
1813 | i++; | |
1814 | } | |
1815 | return; | |
1816 | } | |
8d063cd8 | 1817 | if (!environ[i]) { /* does not exist yet */ |
f2517201 | 1818 | environ = (char**)safesysrealloc(environ, (i+2) * sizeof(char*)); |
8d063cd8 LW |
1819 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1820 | } | |
fe14fcc3 | 1821 | else |
f2517201 GS |
1822 | safesysfree(environ[i]); |
1823 | environ[i] = (char*)safesysmalloc((strlen(nam)+strlen(val)+2) * sizeof(char)); | |
1824 | ||
62b28dd9 | 1825 | #ifndef MSDOS |
a687059c | 1826 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 LW |
1827 | #else |
1828 | /* MS-DOS requires environment variable names to be in uppercase */ | |
fe14fcc3 LW |
1829 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1830 | * some utilities and applications may break because they only look | |
1831 | * for upper case strings. (Fixed strupr() bug here.)] | |
1832 | */ | |
1833 | strcpy(environ[i],nam); strupr(environ[i]); | |
62b28dd9 LW |
1834 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1835 | #endif /* MSDOS */ | |
f2517201 GS |
1836 | |
1837 | #else /* PERL_USE_SAFE_PUTENV */ | |
1838 | char *new_env; | |
1839 | ||
1840 | new_env = (char*)safesysmalloc((strlen(nam) + strlen(val) + 2) * sizeof(char)); | |
1841 | #ifndef MSDOS | |
1842 | (void)sprintf(new_env,"%s=%s",nam,val);/* all that work just for this */ | |
1843 | #else | |
1844 | strcpy(new_env,nam); strupr(new_env); | |
1845 | (void)sprintf(new_env + strlen(nam),"=%s",val); | |
1846 | #endif | |
1847 | (void)putenv(new_env); | |
1848 | #endif /* PERL_USE_SAFE_PUTENV */ | |
8d063cd8 LW |
1849 | } |
1850 | ||
2c2d71f5 JH |
1851 | #else /* WIN32 || CYGWIN */ |
1852 | #if defined(CYGWIN) | |
1cab015a EF |
1853 | /* |
1854 | * Save environ of perl.exe, currently Cygwin links in separate environ's | |
1855 | * for each exe/dll. Probably should be a member of impure_ptr. | |
1856 | */ | |
1857 | static char ***Perl_main_environ; | |
1858 | ||
1859 | EXTERN_C void | |
1860 | Perl_my_setenv_init(char ***penviron) | |
1861 | { | |
1862 | Perl_main_environ = penviron; | |
1863 | } | |
1864 | ||
1865 | void | |
1866 | my_setenv(char *nam, char *val) | |
1867 | { | |
1868 | /* You can not directly manipulate the environ[] array because | |
1869 | * the routines do some additional work that syncs the Cygwin | |
1870 | * environment with the Windows environment. | |
1871 | */ | |
1872 | char *oldstr = environ[setenv_getix(nam)]; | |
1873 | ||
1874 | if (!val) { | |
1875 | if (!oldstr) | |
1876 | return; | |
1877 | unsetenv(nam); | |
1878 | Safefree(oldstr); | |
1879 | return; | |
1880 | } | |
1881 | setenv(nam, val, 1); | |
1882 | environ = *Perl_main_environ; /* environ realloc can occur in setenv */ | |
1883 | if(oldstr && environ[setenv_getix(nam)] != oldstr) | |
1884 | Safefree(oldstr); | |
1885 | } | |
3e3baf6d | 1886 | #else /* if WIN32 */ |
68dc0745 | 1887 | |
1888 | void | |
864dbfa3 | 1889 | Perl_my_setenv(pTHX_ char *nam,char *val) |
68dc0745 | 1890 | { |
3e3baf6d TB |
1891 | |
1892 | #ifdef USE_WIN32_RTL_ENV | |
1893 | ||
68dc0745 | 1894 | register char *envstr; |
1895 | STRLEN namlen = strlen(nam); | |
3e3baf6d TB |
1896 | STRLEN vallen; |
1897 | char *oldstr = environ[setenv_getix(nam)]; | |
1898 | ||
1899 | /* putenv() has totally broken semantics in both the Borland | |
1900 | * and Microsoft CRTLs. They either store the passed pointer in | |
1901 | * the environment without making a copy, or make a copy and don't | |
1902 | * free it. And on top of that, they dont free() old entries that | |
1903 | * are being replaced/deleted. This means the caller must | |
1904 | * free any old entries somehow, or we end up with a memory | |
1905 | * leak every time my_setenv() is called. One might think | |
1906 | * one could directly manipulate environ[], like the UNIX code | |
1907 | * above, but direct changes to environ are not allowed when | |
1908 | * calling putenv(), since the RTLs maintain an internal | |
1909 | * *copy* of environ[]. Bad, bad, *bad* stink. | |
1910 | * GSAR 97-06-07 | |
1911 | */ | |
68dc0745 | 1912 | |
3e3baf6d TB |
1913 | if (!val) { |
1914 | if (!oldstr) | |
1915 | return; | |
1916 | val = ""; | |
1917 | vallen = 0; | |
1918 | } | |
1919 | else | |
1920 | vallen = strlen(val); | |
f2517201 | 1921 | envstr = (char*)safesysmalloc((namlen + vallen + 3) * sizeof(char)); |
68dc0745 | 1922 | (void)sprintf(envstr,"%s=%s",nam,val); |
76e3520e | 1923 | (void)PerlEnv_putenv(envstr); |
3e3baf6d | 1924 | if (oldstr) |
f2517201 | 1925 | safesysfree(oldstr); |
3e3baf6d | 1926 | #ifdef _MSC_VER |
f2517201 | 1927 | safesysfree(envstr); /* MSVCRT leaks without this */ |
3e3baf6d TB |
1928 | #endif |
1929 | ||
1930 | #else /* !USE_WIN32_RTL_ENV */ | |
1931 | ||
ac5c734f GS |
1932 | register char *envstr; |
1933 | STRLEN len = strlen(nam) + 3; | |
1934 | if (!val) { | |
1935 | val = ""; | |
1936 | } | |
1937 | len += strlen(val); | |
1938 | New(904, envstr, len, char); | |
1939 | (void)sprintf(envstr,"%s=%s",nam,val); | |
1940 | (void)PerlEnv_putenv(envstr); | |
1941 | Safefree(envstr); | |
3e3baf6d TB |
1942 | |
1943 | #endif | |
1944 | } | |
1945 | ||
1946 | #endif /* WIN32 */ | |
1cab015a | 1947 | #endif |
3e3baf6d TB |
1948 | |
1949 | I32 | |
864dbfa3 | 1950 | Perl_setenv_getix(pTHX_ char *nam) |
3e3baf6d TB |
1951 | { |
1952 | register I32 i, len = strlen(nam); | |
1953 | ||
1954 | for (i = 0; environ[i]; i++) { | |
1955 | if ( | |
1956 | #ifdef WIN32 | |
1957 | strnicmp(environ[i],nam,len) == 0 | |
1958 | #else | |
1959 | strnEQ(environ[i],nam,len) | |
1960 | #endif | |
1961 | && environ[i][len] == '=') | |
1962 | break; /* strnEQ must come first to avoid */ | |
1963 | } /* potential SEGV's */ | |
1964 | return i; | |
68dc0745 | 1965 | } |
1966 | ||
a0d0e21e | 1967 | #endif /* !VMS */ |
378cc40b | 1968 | |
16d20bd9 | 1969 | #ifdef UNLINK_ALL_VERSIONS |
79072805 | 1970 | I32 |
864dbfa3 | 1971 | Perl_unlnk(pTHX_ char *f) /* unlink all versions of a file */ |
378cc40b | 1972 | { |
79072805 | 1973 | I32 i; |
378cc40b | 1974 | |
6ad3d225 | 1975 | for (i = 0; PerlLIO_unlink(f) >= 0; i++) ; |
378cc40b LW |
1976 | return i ? 0 : -1; |
1977 | } | |
1978 | #endif | |
1979 | ||
85e6fe83 | 1980 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b | 1981 | char * |
864dbfa3 | 1982 | Perl_my_bcopy(pTHX_ register const char *from,register char *to,register I32 len) |
378cc40b LW |
1983 | { |
1984 | char *retval = to; | |
1985 | ||
7c0587c8 LW |
1986 | if (from - to >= 0) { |
1987 | while (len--) | |
1988 | *to++ = *from++; | |
1989 | } | |
1990 | else { | |
1991 | to += len; | |
1992 | from += len; | |
1993 | while (len--) | |
faf8582f | 1994 | *(--to) = *(--from); |
7c0587c8 | 1995 | } |
378cc40b LW |
1996 | return retval; |
1997 | } | |
ffed7fef | 1998 | #endif |
378cc40b | 1999 | |
fc36a67e | 2000 | #ifndef HAS_MEMSET |
2001 | void * | |
864dbfa3 | 2002 | Perl_my_memset(pTHX_ register char *loc, register I32 ch, register I32 len) |
fc36a67e | 2003 | { |
2004 | char *retval = loc; | |
2005 | ||
2006 | while (len--) | |
2007 | *loc++ = ch; | |
2008 | return retval; | |
2009 | } | |
2010 | #endif | |
2011 | ||
7c0587c8 | 2012 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b | 2013 | char * |
864dbfa3 | 2014 | Perl_my_bzero(pTHX_ register char *loc, register I32 len) |
378cc40b LW |
2015 | { |
2016 | char *retval = loc; | |
2017 | ||
2018 | while (len--) | |
2019 | *loc++ = 0; | |
2020 | return retval; | |
2021 | } | |
2022 | #endif | |
7c0587c8 | 2023 | |
36477c24 | 2024 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 | 2025 | I32 |
864dbfa3 | 2026 | Perl_my_memcmp(pTHX_ const char *s1, const char *s2, register I32 len) |
7c0587c8 | 2027 | { |
36477c24 | 2028 | register U8 *a = (U8 *)s1; |
2029 | register U8 *b = (U8 *)s2; | |
79072805 | 2030 | register I32 tmp; |
7c0587c8 LW |
2031 | |
2032 | while (len--) { | |
36477c24 | 2033 | if (tmp = *a++ - *b++) |
7c0587c8 LW |
2034 | return tmp; |
2035 | } | |
2036 | return 0; | |
2037 | } | |
36477c24 | 2038 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c | 2039 | |
fe14fcc3 | 2040 | #ifndef HAS_VPRINTF |
a687059c | 2041 | |
85e6fe83 | 2042 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
2043 | char * |
2044 | #else | |
2045 | int | |
2046 | #endif | |
08105a92 | 2047 | vsprintf(char *dest, const char *pat, char *args) |
a687059c LW |
2048 | { |
2049 | FILE fakebuf; | |
2050 | ||
2051 | fakebuf._ptr = dest; | |
2052 | fakebuf._cnt = 32767; | |
35c8bce7 LW |
2053 | #ifndef _IOSTRG |
2054 | #define _IOSTRG 0 | |
2055 | #endif | |
a687059c LW |
2056 | fakebuf._flag = _IOWRT|_IOSTRG; |
2057 | _doprnt(pat, args, &fakebuf); /* what a kludge */ | |
2058 | (void)putc('\0', &fakebuf); | |
85e6fe83 | 2059 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
2060 | return(dest); |
2061 | #else | |
2062 | return 0; /* perl doesn't use return value */ | |
2063 | #endif | |
2064 | } | |
2065 | ||
fe14fcc3 | 2066 | #endif /* HAS_VPRINTF */ |
a687059c LW |
2067 | |
2068 | #ifdef MYSWAP | |
ffed7fef | 2069 | #if BYTEORDER != 0x4321 |
a687059c | 2070 | short |
864dbfa3 | 2071 | Perl_my_swap(pTHX_ short s) |
a687059c LW |
2072 | { |
2073 | #if (BYTEORDER & 1) == 0 | |
2074 | short result; | |
2075 | ||
2076 | result = ((s & 255) << 8) + ((s >> 8) & 255); | |
2077 | return result; | |
2078 | #else | |
2079 | return s; | |
2080 | #endif | |
2081 | } | |
2082 | ||
2083 | long | |
864dbfa3 | 2084 | Perl_my_htonl(pTHX_ long l) |
a687059c LW |
2085 | { |
2086 | union { | |
2087 | long result; | |
ffed7fef | 2088 | char c[sizeof(long)]; |
a687059c LW |
2089 | } u; |
2090 | ||
ffed7fef | 2091 | #if BYTEORDER == 0x1234 |
a687059c LW |
2092 | u.c[0] = (l >> 24) & 255; |
2093 | u.c[1] = (l >> 16) & 255; | |
2094 | u.c[2] = (l >> 8) & 255; | |
2095 | u.c[3] = l & 255; | |
2096 | return u.result; | |
2097 | #else | |
ffed7fef | 2098 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
cea2e8a9 | 2099 | Perl_croak(aTHX_ "Unknown BYTEORDER\n"); |
a687059c | 2100 | #else |
79072805 LW |
2101 | register I32 o; |
2102 | register I32 s; | |
a687059c | 2103 | |
ffed7fef LW |
2104 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
2105 | u.c[o & 0xf] = (l >> s) & 255; | |
a687059c LW |
2106 | } |
2107 | return u.result; | |
2108 | #endif | |
2109 | #endif | |
2110 | } | |
2111 | ||
2112 | long | |
864dbfa3 | 2113 | Perl_my_ntohl(pTHX_ long l) |
a687059c LW |
2114 | { |
2115 | union { | |
2116 | long l; | |
ffed7fef | 2117 | char c[sizeof(long)]; |
a687059c LW |
2118 | } u; |
2119 | ||
ffed7fef | 2120 | #if BYTEORDER == 0x1234 |
a687059c LW |
2121 | u.c[0] = (l >> 24) & 255; |
2122 | u.c[1] = (l >> 16) & 255; | |
2123 | u.c[2] = (l >> 8) & 255; | |
2124 | u.c[3] = l & 255; | |
2125 | return u.l; | |
2126 | #else | |
ffed7fef | 2127 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
cea2e8a9 | 2128 | Perl_croak(aTHX_ "Unknown BYTEORDER\n"); |
a687059c | 2129 | #else |
79072805 LW |
2130 | register I32 o; |
2131 | register I32 s; | |
a687059c LW |
2132 | |
2133 | u.l = l; | |
2134 | l = 0; | |
ffed7fef LW |
2135 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
2136 | l |= (u.c[o & 0xf] & 255) << s; | |
a687059c LW |
2137 | } |
2138 | return l; | |
2139 | #endif | |
2140 | #endif | |
2141 | } | |
2142 | ||
ffed7fef | 2143 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 LW |
2144 | #endif /* MYSWAP */ |
2145 | ||
2146 | /* | |
2147 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. | |
2148 | * If these functions are defined, | |
2149 | * the BYTEORDER is neither 0x1234 nor 0x4321. | |
2150 | * However, this is not assumed. | |
2151 | * -DWS | |
2152 | */ | |
2153 | ||
2154 | #define HTOV(name,type) \ | |
2155 | type \ | |
ba106d47 | 2156 | name (register type n) \ |
988174c1 LW |
2157 | { \ |
2158 | union { \ | |
2159 | type value; \ | |
2160 | char c[sizeof(type)]; \ | |
2161 | } u; \ | |
79072805 LW |
2162 | register I32 i; \ |
2163 | register I32 s; \ | |
988174c1 LW |
2164 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
2165 | u.c[i] = (n >> s) & 0xFF; \ | |
2166 | } \ | |
2167 | return u.value; \ | |
2168 | } | |
2169 | ||
2170 | #define VTOH(name,type) \ | |
2171 | type \ | |
ba106d47 | 2172 | name (register type n) \ |
988174c1 LW |
2173 | { \ |
2174 | union { \ | |
2175 | type value; \ | |
2176 | char c[sizeof(type)]; \ | |
2177 | } u; \ | |
79072805 LW |
2178 | register I32 i; \ |
2179 | register I32 s; \ | |
988174c1 LW |
2180 | u.value = n; \ |
2181 | n = 0; \ | |
2182 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ | |
2183 | n += (u.c[i] & 0xFF) << s; \ | |
2184 | } \ | |
2185 | return n; \ | |
2186 | } | |
2187 | ||
2188 | #if defined(HAS_HTOVS) && !defined(htovs) | |
2189 | HTOV(htovs,short) | |
2190 | #endif | |
2191 | #if defined(HAS_HTOVL) && !defined(htovl) | |
2192 | HTOV(htovl,long) | |
2193 | #endif | |
2194 | #if defined(HAS_VTOHS) && !defined(vtohs) | |
2195 | VTOH(vtohs,short) | |
2196 | #endif | |
2197 | #if defined(HAS_VTOHL) && !defined(vtohl) | |
2198 | VTOH(vtohl,long) | |
2199 | #endif | |
a687059c | 2200 | |
5f05dabc | 2201 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
4d2c4e07 | 2202 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) && !defined(EPOC) |
760ac839 | 2203 | PerlIO * |
864dbfa3 | 2204 | Perl_my_popen(pTHX_ char *cmd, char *mode) |
a687059c LW |
2205 | { |
2206 | int p[2]; | |
8ac85365 | 2207 | register I32 This, that; |
d8a83dd3 | 2208 | register Pid_t pid; |
79072805 | 2209 | SV *sv; |
1738f5c4 | 2210 | I32 doexec = strNE(cmd,"-"); |
e446cec8 IZ |
2211 | I32 did_pipes = 0; |
2212 | int pp[2]; | |
a687059c | 2213 | |
45bc9206 | 2214 | PERL_FLUSHALL_FOR_CHILD; |
ddcf38b7 IZ |
2215 | #ifdef OS2 |
2216 | if (doexec) { | |
2217 | return my_syspopen(cmd,mode); | |
2218 | } | |
2219 | #endif | |
8ac85365 NIS |
2220 | This = (*mode == 'w'); |
2221 | that = !This; | |
3280af22 | 2222 | if (doexec && PL_tainting) { |
bbce6d69 | 2223 | taint_env(); |
2224 | taint_proper("Insecure %s%s", "EXEC"); | |
d48672a2 | 2225 | } |
c2267164 IZ |
2226 | if (PerlProc_pipe(p) < 0) |
2227 | return Nullfp; | |
e446cec8 IZ |
2228 | if (doexec && PerlProc_pipe(pp) >= 0) |
2229 | did_pipes = 1; | |
a687059c LW |
2230 | while ((pid = (doexec?vfork():fork())) < 0) { |
2231 | if (errno != EAGAIN) { | |
6ad3d225 | 2232 | PerlLIO_close(p[This]); |
e446cec8 IZ |
2233 | if (did_pipes) { |
2234 | PerlLIO_close(pp[0]); | |
2235 | PerlLIO_close(pp[1]); | |
2236 | } | |
a687059c | 2237 | if (!doexec) |
cea2e8a9 | 2238 | Perl_croak(aTHX_ "Can't fork"); |
a687059c LW |
2239 | return Nullfp; |
2240 | } | |
2241 | sleep(5); | |
2242 | } | |
2243 | if (pid == 0) { | |
79072805 LW |
2244 | GV* tmpgv; |
2245 | ||
30ac6d9b GS |
2246 | #undef THIS |
2247 | #undef THAT | |
a687059c | 2248 | #define THIS that |
8ac85365 | 2249 | #define THAT This |
6ad3d225 | 2250 | PerlLIO_close(p[THAT]); |
e446cec8 IZ |
2251 | if (did_pipes) { |
2252 | PerlLIO_close(pp[0]); | |
2253 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
2254 | fcntl(pp[1], F_SETFD, FD_CLOEXEC); | |
2255 | #endif | |
2256 | } | |
a687059c | 2257 | if (p[THIS] != (*mode == 'r')) { |
6ad3d225 GS |
2258 | PerlLIO_dup2(p[THIS], *mode == 'r'); |
2259 | PerlLIO_close(p[THIS]); | |
a687059c | 2260 | } |
4435c477 | 2261 | #ifndef OS2 |
a687059c | 2262 | if (doexec) { |
a0d0e21e | 2263 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 LW |
2264 | int fd; |
2265 | ||
2266 | #ifndef NOFILE | |
2267 | #define NOFILE 20 | |
2268 | #endif | |
6b88bc9c | 2269 | for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++) |
e446cec8 IZ |
2270 | if (fd != pp[1]) |
2271 | PerlLIO_close(fd); | |
ae986130 | 2272 | #endif |
e446cec8 | 2273 | do_exec3(cmd,pp[1],did_pipes); /* may or may not use the shell */ |
6ad3d225 | 2274 | PerlProc__exit(1); |
a687059c | 2275 | } |
4435c477 | 2276 | #endif /* defined OS2 */ |
de3bb511 | 2277 | /*SUPPRESS 560*/ |
85e6fe83 | 2278 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
d8a83dd3 | 2279 | sv_setiv(GvSV(tmpgv), getpid()); |
3280af22 NIS |
2280 | PL_forkprocess = 0; |
2281 | hv_clear(PL_pidstatus); /* we have no children */ | |
a687059c LW |
2282 | return Nullfp; |
2283 | #undef THIS | |
2284 | #undef THAT | |
2285 | } | |
62b28dd9 | 2286 | do_execfree(); /* free any memory malloced by child on vfork */ |
6ad3d225 | 2287 | PerlLIO_close(p[that]); |
e446cec8 IZ |
2288 | if (did_pipes) |
2289 | PerlLIO_close(pp[1]); | |
8ac85365 | 2290 | if (p[that] < p[This]) { |
6ad3d225 GS |
2291 | PerlLIO_dup2(p[This], p[that]); |
2292 | PerlLIO_close(p[This]); | |
8ac85365 | 2293 | p[This] = p[that]; |
62b28dd9 | 2294 | } |
3280af22 | 2295 | sv = *av_fetch(PL_fdpid,p[This],TRUE); |
a0d0e21e | 2296 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 2297 | SvIVX(sv) = pid; |
3280af22 | 2298 | PL_forkprocess = pid; |
e446cec8 IZ |
2299 | if (did_pipes && pid > 0) { |
2300 | int errkid; | |
2301 | int n = 0, n1; | |
2302 | ||
2303 | while (n < sizeof(int)) { | |
2304 | n1 = PerlLIO_read(pp[0], | |
2305 | (void*)(((char*)&errkid)+n), | |
2306 | (sizeof(int)) - n); | |
2307 | if (n1 <= 0) | |
2308 | break; | |
2309 | n += n1; | |
2310 | } | |
2f96c702 IZ |
2311 | PerlLIO_close(pp[0]); |
2312 | did_pipes = 0; | |
e446cec8 IZ |
2313 | if (n) { /* Error */ |
2314 | if (n != sizeof(int)) | |
cea2e8a9 | 2315 | Perl_croak(aTHX_ "panic: kid popen errno read"); |
e446cec8 IZ |
2316 | errno = errkid; /* Propagate errno from kid */ |
2317 | return Nullfp; | |
2318 | } | |
2319 | } | |
2320 | if (did_pipes) | |
2321 | PerlLIO_close(pp[0]); | |
8ac85365 | 2322 | return PerlIO_fdopen(p[This], mode); |
a687059c | 2323 | } |
7c0587c8 | 2324 | #else |
55497cff | 2325 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 | 2326 | FILE *popen(); |
760ac839 | 2327 | PerlIO * |
864dbfa3 | 2328 | Perl_my_popen(pTHX_ char *cmd, char *mode) |
7c0587c8 | 2329 | { |
760ac839 | 2330 | /* Needs work for PerlIO ! */ |
55497cff | 2331 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
45bc9206 | 2332 | PERL_FLUSHALL_FOR_CHILD; |
55497cff | 2333 | return popen(PerlIO_exportFILE(cmd, 0), mode); |
7c0587c8 LW |
2334 | } |
2335 | #endif | |
2336 | ||
2337 | #endif /* !DOSISH */ | |
a687059c | 2338 | |
748a9306 | 2339 | #ifdef DUMP_FDS |
35ff7856 | 2340 | void |
864dbfa3 | 2341 | Perl_dump_fds(pTHX_ char *s) |
ae986130 LW |
2342 | { |
2343 | int fd; | |
2344 | struct stat tmpstatbuf; | |
2345 | ||
760ac839 | 2346 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 | 2347 | for (fd = 0; fd < 32; fd++) { |
6ad3d225 | 2348 | if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0) |
760ac839 | 2349 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 | 2350 | } |
760ac839 | 2351 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 | 2352 | } |
35ff7856 | 2353 | #endif /* DUMP_FDS */ |
ae986130 | 2354 | |
fe14fcc3 | 2355 | #ifndef HAS_DUP2 |
fec02dd3 | 2356 | int |
ba106d47 | 2357 | dup2(int oldfd, int newfd) |
a687059c | 2358 | { |
a0d0e21e | 2359 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 AD |
2360 | if (oldfd == newfd) |
2361 | return oldfd; | |
6ad3d225 | 2362 | PerlLIO_close(newfd); |
fec02dd3 | 2363 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 | 2364 | #else |
fc36a67e | 2365 | #define DUP2_MAX_FDS 256 |
2366 | int fdtmp[DUP2_MAX_FDS]; | |
79072805 | 2367 | I32 fdx = 0; |
ae986130 LW |
2368 | int fd; |
2369 | ||
fe14fcc3 | 2370 | if (oldfd == newfd) |
fec02dd3 | 2371 | return oldfd; |
6ad3d225 | 2372 | PerlLIO_close(newfd); |
fc36a67e | 2373 | /* good enough for low fd's... */ |
6ad3d225 | 2374 | while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) { |
fc36a67e | 2375 | if (fdx >= DUP2_MAX_FDS) { |
6ad3d225 | 2376 | PerlLIO_close(fd); |
fc36a67e | 2377 | fd = -1; |
2378 | break; | |
2379 | } | |
ae986130 | 2380 | fdtmp[fdx++] = fd; |
fc36a67e | 2381 | } |
ae986130 | 2382 | while (fdx > 0) |
6ad3d225 | 2383 | PerlLIO_close(fdtmp[--fdx]); |
fec02dd3 | 2384 | return fd; |
62b28dd9 | 2385 | #endif |
a687059c LW |
2386 | } |
2387 | #endif | |
2388 | ||
ff68c719 | 2389 | |
2390 | #ifdef HAS_SIGACTION | |
2391 | ||
2392 | Sighandler_t | |
864dbfa3 | 2393 | Perl_rsignal(pTHX_ int signo, Sighandler_t handler) |
ff68c719 | 2394 | { |
2395 | struct sigaction act, oact; | |
2396 | ||
2397 | act.sa_handler = handler; | |
2398 | sigemptyset(&act.sa_mask); | |
2399 | act.sa_flags = 0; | |
2400 | #ifdef SA_RESTART | |
2401 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
2402 | #endif | |
85264bed CS |
2403 | #ifdef SA_NOCLDWAIT |
2404 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) | |
2405 | act.sa_flags |= SA_NOCLDWAIT; | |
2406 | #endif | |
ff68c719 | 2407 | if (sigaction(signo, &act, &oact) == -1) |
36477c24 | 2408 | return SIG_ERR; |
ff68c719 | 2409 | else |
36477c24 | 2410 | return oact.sa_handler; |
ff68c719 | 2411 | } |
2412 | ||
2413 | Sighandler_t | |
864dbfa3 | 2414 | Perl_rsignal_state(pTHX_ int signo) |
ff68c719 | 2415 | { |
2416 | struct sigaction oact; | |
2417 | ||
2418 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) | |
2419 | return SIG_ERR; | |
2420 | else | |
2421 | return oact.sa_handler; | |
2422 | } | |
2423 | ||
2424 | int | |
864dbfa3 | 2425 | Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 | 2426 | { |
2427 | struct sigaction act; | |
2428 | ||
2429 | act.sa_handler = handler; | |
2430 | sigemptyset(&act.sa_mask); | |
2431 | act.sa_flags = 0; | |
2432 | #ifdef SA_RESTART | |
2433 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ | |
2434 | #endif | |
85264bed CS |
2435 | #ifdef SA_NOCLDWAIT |
2436 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) | |
2437 | act.sa_flags |= SA_NOCLDWAIT; | |
2438 | #endif | |
ff68c719 | 2439 | return sigaction(signo, &act, save); |
2440 | } | |
2441 | ||
2442 | int | |
864dbfa3 | 2443 | Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save) |
ff68c719 | 2444 | { |
2445 | return sigaction(signo, save, (struct sigaction *)NULL); | |
2446 | } | |
2447 | ||
2448 | #else /* !HAS_SIGACTION */ | |
2449 | ||
2450 | Sighandler_t | |
864dbfa3 | 2451 | Perl_rsignal(pTHX_ int signo, Sighandler_t handler) |
ff68c719 | 2452 | { |
6ad3d225 | 2453 | return PerlProc_signal(signo, handler); |
ff68c719 | 2454 | } |
2455 | ||
2456 | static int sig_trapped; | |
2457 | ||
2458 | static | |
2459 | Signal_t | |
4e35701f | 2460 | sig_trap(int signo) |
ff68c719 | 2461 | { |
2462 | sig_trapped++; | |
2463 | } | |
2464 | ||
2465 | Sighandler_t | |
864dbfa3 | 2466 | Perl_rsignal_state(pTHX_ int signo) |
ff68c719 | 2467 | { |
2468 | Sighandler_t oldsig; | |
2469 | ||
2470 | sig_trapped = 0; | |
6ad3d225 GS |
2471 | oldsig = PerlProc_signal(signo, sig_trap); |
2472 | PerlProc_signal(signo, oldsig); | |
ff68c719 | 2473 | if (sig_trapped) |
6ad3d225 | 2474 | PerlProc_kill(getpid(), signo); |
ff68c719 | 2475 | return oldsig; |
2476 | } | |
2477 | ||
2478 | int | |
864dbfa3 | 2479 | Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 | 2480 | { |
6ad3d225 | 2481 | *save = PerlProc_signal(signo, handler); |
ff68c719 | 2482 | return (*save == SIG_ERR) ? -1 : 0; |
2483 | } | |
2484 | ||
2485 | int | |
864dbfa3 | 2486 | Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save) |
ff68c719 | 2487 | { |
6ad3d225 | 2488 | return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0; |
ff68c719 | 2489 | } |
2490 | ||
2491 | #endif /* !HAS_SIGACTION */ | |
2492 | ||
5f05dabc | 2493 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
4d2c4e07 | 2494 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) && !defined(EPOC) |
79072805 | 2495 | I32 |
864dbfa3 | 2496 | Perl_my_pclose(pTHX_ PerlIO *ptr) |
a687059c | 2497 | { |
ff68c719 | 2498 | Sigsave_t hstat, istat, qstat; |
a687059c | 2499 | int status; |
a0d0e21e | 2500 | SV **svp; |
d8a83dd3 JH |
2501 | Pid_t pid; |
2502 | Pid_t pid2; | |
03136e13 CS |
2503 | bool close_failed; |
2504 | int saved_errno; | |
2505 | #ifdef VMS | |
2506 | int saved_vaxc_errno; | |
2507 | #endif | |
22fae026 TM |
2508 | #ifdef WIN32 |
2509 | int saved_win32_errno; | |
2510 | #endif | |
a687059c | 2511 | |
3280af22 | 2512 | svp = av_fetch(PL_fdpid,PerlIO_fileno(ptr),TRUE); |
d8a83dd3 | 2513 | pid = SvIVX(*svp); |
a0d0e21e | 2514 | SvREFCNT_dec(*svp); |
3280af22 | 2515 | *svp = &PL_sv_undef; |
ddcf38b7 IZ |
2516 | #ifdef OS2 |
2517 | if (pid == -1) { /* Opened by popen. */ | |
2518 | return my_syspclose(ptr); | |
2519 | } | |
2520 | #endif | |
03136e13 CS |
2521 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2522 | saved_errno = errno; | |
2523 | #ifdef VMS | |
2524 | saved_vaxc_errno = vaxc$errno; | |
2525 | #endif | |
22fae026 TM |
2526 | #ifdef WIN32 |
2527 | saved_win32_errno = GetLastError(); | |
2528 | #endif | |
03136e13 | 2529 | } |
7c0587c8 | 2530 | #ifdef UTS |
6ad3d225 | 2531 | if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
7c0587c8 | 2532 | #endif |
ff68c719 | 2533 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2534 | rsignal_save(SIGINT, SIG_IGN, &istat); | |
2535 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); | |
748a9306 | 2536 | do { |
1d3434b8 GS |
2537 | pid2 = wait4pid(pid, &status, 0); |
2538 | } while (pid2 == -1 && errno == EINTR); | |
ff68c719 | 2539 | rsignal_restore(SIGHUP, &hstat); |
2540 | rsignal_restore(SIGINT, &istat); | |
2541 | rsignal_restore(SIGQUIT, &qstat); | |
03136e13 CS |
2542 | if (close_failed) { |
2543 | SETERRNO(saved_errno, saved_vaxc_errno); | |
2544 | return -1; | |
2545 | } | |
1d3434b8 | 2546 | return(pid2 < 0 ? pid2 : status == 0 ? 0 : (errno = 0, status)); |
20188a90 | 2547 | } |
4633a7c4 LW |
2548 | #endif /* !DOSISH */ |
2549 | ||
2c2d71f5 | 2550 | #if !defined(DOSISH) || defined(OS2) || defined(WIN32) |
79072805 | 2551 | I32 |
d8a83dd3 | 2552 | Perl_wait4pid(pTHX_ Pid_t pid, int *statusp, int flags) |
20188a90 | 2553 | { |
79072805 LW |
2554 | SV *sv; |
2555 | SV** svp; | |
fc36a67e | 2556 | char spid[TYPE_CHARS(int)]; |
20188a90 LW |
2557 | |
2558 | if (!pid) | |
2559 | return -1; | |
20188a90 LW |
2560 | if (pid > 0) { |
2561 | sprintf(spid, "%d", pid); | |
3280af22 NIS |
2562 | svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE); |
2563 | if (svp && *svp != &PL_sv_undef) { | |
463ee0b2 | 2564 | *statusp = SvIVX(*svp); |
3280af22 | 2565 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2566 | return pid; |
2567 | } | |
2568 | } | |
2569 | else { | |
79072805 | 2570 | HE *entry; |
20188a90 | 2571 | |
3280af22 NIS |
2572 | hv_iterinit(PL_pidstatus); |
2573 | if (entry = hv_iternext(PL_pidstatus)) { | |
a0d0e21e | 2574 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
3280af22 | 2575 | sv = hv_iterval(PL_pidstatus,entry); |
463ee0b2 | 2576 | *statusp = SvIVX(sv); |
20188a90 | 2577 | sprintf(spid, "%d", pid); |
3280af22 | 2578 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
2579 | return pid; |
2580 | } | |
2581 | } | |
79072805 | 2582 | #ifdef HAS_WAITPID |
367f3c24 IZ |
2583 | # ifdef HAS_WAITPID_RUNTIME |
2584 | if (!HAS_WAITPID_RUNTIME) | |
2585 | goto hard_way; | |
2586 | # endif | |
f55ee38a | 2587 | return PerlProc_waitpid(pid,statusp,flags); |
367f3c24 IZ |
2588 | #endif |
2589 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) | |
a0d0e21e | 2590 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
367f3c24 IZ |
2591 | #endif |
2592 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) | |
2593 | hard_way: | |
a0d0e21e LW |
2594 | { |
2595 | I32 result; | |
2596 | if (flags) | |
cea2e8a9 | 2597 | Perl_croak(aTHX_ "Can't do waitpid with flags"); |
a0d0e21e | 2598 | else { |
76e3520e | 2599 | while ((result = PerlProc_wait(statusp)) != pid && pid > 0 && result >= 0) |
a0d0e21e LW |
2600 | pidgone(result,*statusp); |
2601 | if (result < 0) | |
2602 | *statusp = -1; | |
2603 | } | |
2604 | return result; | |
a687059c LW |
2605 | } |
2606 | #endif | |
a687059c | 2607 | } |
2d7a9237 | 2608 | #endif /* !DOSISH || OS2 || WIN32 */ |
a687059c | 2609 | |
7c0587c8 | 2610 | void |
de3bb511 | 2611 | /*SUPPRESS 590*/ |
d8a83dd3 | 2612 | Perl_pidgone(pTHX_ Pid_t pid, int status) |
a687059c | 2613 | { |
79072805 | 2614 | register SV *sv; |
fc36a67e | 2615 | char spid[TYPE_CHARS(int)]; |
a687059c | 2616 | |
20188a90 | 2617 | sprintf(spid, "%d", pid); |
3280af22 | 2618 | sv = *hv_fetch(PL_pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e | 2619 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 2620 | SvIVX(sv) = status; |
20188a90 | 2621 | return; |
a687059c LW |
2622 | } |
2623 | ||
55497cff | 2624 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 | 2625 | int pclose(); |
ddcf38b7 IZ |
2626 | #ifdef HAS_FORK |
2627 | int /* Cannot prototype with I32 | |
2628 | in os2ish.h. */ | |
ba106d47 | 2629 | my_syspclose(PerlIO *ptr) |
ddcf38b7 | 2630 | #else |
79072805 | 2631 | I32 |
864dbfa3 | 2632 | Perl_my_pclose(pTHX_ PerlIO *ptr) |
ddcf38b7 | 2633 | #endif |
a687059c | 2634 | { |
760ac839 LW |
2635 | /* Needs work for PerlIO ! */ |
2636 | FILE *f = PerlIO_findFILE(ptr); | |
2637 | I32 result = pclose(f); | |
2638 | PerlIO_releaseFILE(ptr,f); | |
2639 | return result; | |
a687059c | 2640 | } |
7c0587c8 | 2641 | #endif |
9f68db38 LW |
2642 | |
2643 | void | |
864dbfa3 | 2644 | Perl_repeatcpy(pTHX_ register char *to, register const char *from, I32 len, register I32 count) |
9f68db38 | 2645 | { |
79072805 | 2646 | register I32 todo; |
08105a92 | 2647 | register const char *frombase = from; |
9f68db38 LW |
2648 | |
2649 | if (len == 1) { | |
08105a92 | 2650 | register const char c = *from; |
9f68db38 | 2651 | while (count-- > 0) |
5926133d | 2652 | *to++ = c; |
9f68db38 LW |
2653 | return; |
2654 | } | |
2655 | while (count-- > 0) { | |
2656 | for (todo = len; todo > 0; todo--) { | |
2657 | *to++ = *from++; | |
2658 | } | |
2659 | from = frombase; | |
2660 | } | |
2661 | } | |
0f85fab0 | 2662 | |
463ee0b2 | 2663 | U32 |
65202027 | 2664 | Perl_cast_ulong(pTHX_ NV f) |
0f85fab0 LW |
2665 | { |
2666 | long along; | |
2667 | ||
27e2fb84 | 2668 | #if CASTFLAGS & 2 |
34de22dd LW |
2669 | # define BIGDOUBLE 2147483648.0 |
2670 | if (f >= BIGDOUBLE) | |
2671 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; | |
2672 | #endif | |
0f85fab0 LW |
2673 | if (f >= 0.0) |
2674 | return (unsigned long)f; | |
2675 | along = (long)f; | |
2676 | return (unsigned long)along; | |
2677 | } | |
ed6116ce | 2678 | # undef BIGDOUBLE |
5d94fbed | 2679 | |
5d94fbed AD |
2680 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2681 | work with the system-supplied definition of ULONG_MAX. The | |
2682 | comparison (f >= ULONG_MAX) always comes out true. It must be a | |
2683 | problem with the compiler constant folding. | |
2684 | ||
2685 | In any case, this workaround should be fine on any two's complement | |
2686 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your | |
2687 | ccflags. | |
2688 | --Andy Dougherty <doughera@lafcol.lafayette.edu> | |
2689 | */ | |
1eb770ff | 2690 | |
2691 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead | |
2692 | of LONG_(MIN/MAX). | |
2693 | -- Kenneth Albanowski <kjahds@kjahds.com> | |
2694 | */ | |
2695 | ||
20cec16a | 2696 | #ifndef MY_UV_MAX |
2697 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) | |
5d94fbed AD |
2698 | #endif |
2699 | ||
ed6116ce | 2700 | I32 |
65202027 | 2701 | Perl_cast_i32(pTHX_ NV f) |
ed6116ce | 2702 | { |
20cec16a | 2703 | if (f >= I32_MAX) |
2704 | return (I32) I32_MAX; | |
2705 | if (f <= I32_MIN) | |
2706 | return (I32) I32_MIN; | |
ed6116ce LW |
2707 | return (I32) f; |
2708 | } | |
a0d0e21e LW |
2709 | |
2710 | IV | |
65202027 | 2711 | Perl_cast_iv(pTHX_ NV f) |
a0d0e21e | 2712 | { |
25da4f38 IZ |
2713 | if (f >= IV_MAX) { |
2714 | UV uv; | |
2715 | ||
65202027 | 2716 | if (f >= (NV)UV_MAX) |
25da4f38 IZ |
2717 | return (IV) UV_MAX; |
2718 | uv = (UV) f; | |
2719 | return (IV)uv; | |
2720 | } | |
20cec16a | 2721 | if (f <= IV_MIN) |
2722 | return (IV) IV_MIN; | |
a0d0e21e LW |
2723 | return (IV) f; |
2724 | } | |
5d94fbed AD |
2725 | |
2726 | UV | |
65202027 | 2727 | Perl_cast_uv(pTHX_ NV f) |
5d94fbed | 2728 | { |
20cec16a | 2729 | if (f >= MY_UV_MAX) |
2730 | return (UV) MY_UV_MAX; | |
25da4f38 IZ |
2731 | if (f < 0) { |
2732 | IV iv; | |
2733 | ||
2734 | if (f < IV_MIN) | |
2735 | return (UV)IV_MIN; | |
2736 | iv = (IV) f; | |
2737 | return (UV) iv; | |
2738 | } | |
5d94fbed AD |
2739 | return (UV) f; |
2740 | } | |
2741 | ||
fe14fcc3 | 2742 | #ifndef HAS_RENAME |
79072805 | 2743 | I32 |
864dbfa3 | 2744 | Perl_same_dirent(pTHX_ char *a, char *b) |
62b28dd9 | 2745 | { |
93a17b20 LW |
2746 | char *fa = strrchr(a,'/'); |
2747 | char *fb = strrchr(b,'/'); | |
62b28dd9 LW |
2748 | struct stat tmpstatbuf1; |
2749 | struct stat tmpstatbuf2; | |
46fc3d4c | 2750 | SV *tmpsv = sv_newmortal(); |
62b28dd9 LW |
2751 | |
2752 | if (fa) | |
2753 | fa++; | |
2754 | else | |
2755 | fa = a; | |
2756 | if (fb) | |
2757 | fb++; | |
2758 | else | |
2759 | fb = b; | |
2760 | if (strNE(a,b)) | |
2761 | return FALSE; | |
2762 | if (fa == a) | |
46fc3d4c | 2763 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2764 | else |
46fc3d4c | 2765 | sv_setpvn(tmpsv, a, fa - a); |
c6ed36e1 | 2766 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
62b28dd9 LW |
2767 | return FALSE; |
2768 | if (fb == b) | |
46fc3d4c | 2769 | sv_setpv(tmpsv, "."); |
62b28dd9 | 2770 | else |
46fc3d4c | 2771 | sv_setpvn(tmpsv, b, fb - b); |
c6ed36e1 | 2772 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
62b28dd9 LW |
2773 | return FALSE; |
2774 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && | |
2775 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; | |
2776 | } | |
fe14fcc3 LW |
2777 | #endif /* !HAS_RENAME */ |
2778 | ||
9e24b6e2 | 2779 | NV |
864dbfa3 | 2780 | Perl_scan_bin(pTHX_ char *start, I32 len, I32 *retlen) |
4f19785b WSI |
2781 | { |
2782 | register char *s = start; | |
9e24b6e2 JH |
2783 | register NV rnv = 0.0; |
2784 | register UV ruv = 0; | |
252aa082 | 2785 | register bool seenb = FALSE; |
9e24b6e2 | 2786 | register bool overflowed = FALSE; |
252aa082 JH |
2787 | |
2788 | for (; len-- && *s; s++) { | |
2789 | if (!(*s == '0' || *s == '1')) { | |
2790 | if (*s == '_') | |
9e24b6e2 | 2791 | continue; /* Note: does not check for __ and the like. */ |
2cc4c2dc | 2792 | if (seenb == FALSE && *s == 'b' && ruv == 0) { |
252aa082 JH |
2793 | /* Disallow 0bbb0b0bbb... */ |
2794 | seenb = TRUE; | |
252aa082 JH |
2795 | continue; |
2796 | } | |
2797 | else { | |
2798 | dTHR; | |
627300f0 JH |
2799 | if (ckWARN(WARN_DIGIT)) |
2800 | Perl_warner(aTHX_ WARN_DIGIT, | |
252aa082 JH |
2801 | "Illegal binary digit '%c' ignored", *s); |
2802 | break; | |
2803 | } | |
9e24b6e2 JH |
2804 | } |
2805 | if (!overflowed) { | |
2806 | register UV xuv = ruv << 1; | |
2807 | ||
2808 | if ((xuv >> 1) != ruv) { | |
2809 | dTHR; | |
2810 | overflowed = TRUE; | |
2811 | rnv = (NV) ruv; | |
627300f0 JH |
2812 | if (ckWARN_d(WARN_OVERFLOW)) |
2813 | Perl_warner(aTHX_ WARN_OVERFLOW, | |
9e24b6e2 JH |
2814 | "Integer overflow in binary number"); |
2815 | } else | |
2816 | ruv = xuv | (*s - '0'); | |
2817 | } | |
2818 | if (overflowed) { | |
2819 | rnv *= 2; | |
2820 | /* If an NV has not enough bits in its mantissa to | |
2821 | * represent an UV this summing of small low-order numbers | |
2822 | * is a waste of time (because the NV cannot preserve | |
2823 | * the low-order bits anyway): we could just remember when | |
2824 | * did we overflow and in the end just multiply rnv by the | |
2cc4c2dc | 2825 | * right amount. */ |
9e24b6e2 | 2826 | rnv += (*s - '0'); |
f248d071 | 2827 | } |
4f19785b | 2828 | } |
9e24b6e2 JH |
2829 | if (!overflowed) |
2830 | rnv = (NV) ruv; | |
893fe2c2 JH |
2831 | if ( ( overflowed && rnv > 4294967295.0) |
2832 | #if UV_SIZEOF > 4 | |
2833 | || (!overflowed && ruv > 0xffffffff ) | |
2834 | #endif | |
2835 | ) { | |
252aa082 | 2836 | dTHR; |
627300f0 JH |
2837 | if (ckWARN(WARN_PORTABLE)) |
2838 | Perl_warner(aTHX_ WARN_PORTABLE, | |
252aa082 | 2839 | "Binary number > 0b11111111111111111111111111111111 non-portable"); |
4f19785b WSI |
2840 | } |
2841 | *retlen = s - start; | |
9e24b6e2 | 2842 | return rnv; |
4f19785b | 2843 | } |
9e24b6e2 JH |
2844 | |
2845 | NV | |
864dbfa3 | 2846 | Perl_scan_oct(pTHX_ char *start, I32 len, I32 *retlen) |
fe14fcc3 LW |
2847 | { |
2848 | register char *s = start; | |
9e24b6e2 JH |
2849 | register NV rnv = 0.0; |
2850 | register UV ruv = 0; | |
2851 | register bool overflowed = FALSE; | |
252aa082 JH |
2852 | |
2853 | for (; len-- && *s; s++) { | |
2854 | if (!(*s >= '0' && *s <= '7')) { | |
2855 | if (*s == '_') | |
9e24b6e2 | 2856 | continue; /* Note: does not check for __ and the like. */ |
252aa082 | 2857 | else { |
f84f607d JH |
2858 | /* Allow \octal to work the DWIM way (that is, stop scanning |
2859 | * as soon as non-octal characters are seen, complain only iff | |
2860 | * someone seems to want to use the digits eight and nine). */ | |
252aa082 JH |
2861 | if (*s == '8' || *s == '9') { |
2862 | dTHR; | |
627300f0 JH |
2863 | if (ckWARN(WARN_DIGIT)) |
2864 | Perl_warner(aTHX_ WARN_DIGIT, | |
252aa082 JH |
2865 | "Illegal octal digit '%c' ignored", *s); |
2866 | } | |
2867 | break; | |
2868 | } | |
55497cff | 2869 | } |
9e24b6e2 | 2870 | if (!overflowed) { |
893fe2c2 | 2871 | register UV xuv = ruv << 3; |
9e24b6e2 JH |
2872 | |
2873 | if ((xuv >> 3) != ruv) { | |
2874 | dTHR; | |
2875 | overflowed = TRUE; | |
2876 | rnv = (NV) ruv; | |
627300f0 JH |
2877 | if (ckWARN_d(WARN_OVERFLOW)) |
2878 | Perl_warner(aTHX_ WARN_OVERFLOW, | |
9e24b6e2 JH |
2879 | "Integer overflow in octal number"); |
2880 | } else | |
2881 | ruv = xuv | (*s - '0'); | |
2882 | } | |
2883 | if (overflowed) { | |
2884 | rnv *= 8.0; | |
2885 | /* If an NV has not enough bits in its mantissa to | |
2886 | * represent an UV this summing of small low-order numbers | |
2887 | * is a waste of time (because the NV cannot preserve | |
2888 | * the low-order bits anyway): we could just remember when | |
2889 | * did we overflow and in the end just multiply rnv by the | |
2890 | * right amount of 8-tuples. */ | |
2891 | rnv += (NV)(*s - '0'); | |
2892 | } | |
fe14fcc3 | 2893 | } |
9e24b6e2 JH |
2894 | if (!overflowed) |
2895 | rnv = (NV) ruv; | |
893fe2c2 JH |
2896 | if ( ( overflowed && rnv > 4294967295.0) |
2897 | #if UV_SIZEOF > 4 | |
2898 | || (!overflowed && ruv > 0xffffffff ) | |
2899 | #endif | |
2900 | ) { | |
d008e5eb | 2901 | dTHR; |
627300f0 JH |
2902 | if (ckWARN(WARN_PORTABLE)) |
2903 | Perl_warner(aTHX_ WARN_PORTABLE, | |
252aa082 | 2904 | "Octal number > 037777777777 non-portable"); |
d008e5eb | 2905 | } |
fe14fcc3 | 2906 | *retlen = s - start; |
9e24b6e2 | 2907 | return rnv; |
fe14fcc3 LW |
2908 | } |
2909 | ||
9e24b6e2 | 2910 | NV |
864dbfa3 | 2911 | Perl_scan_hex(pTHX_ char *start, I32 len, I32 *retlen) |
fe14fcc3 LW |
2912 | { |
2913 | register char *s = start; | |
9e24b6e2 JH |
2914 | register NV rnv = 0.0; |
2915 | register UV ruv = 0; | |
252aa082 | 2916 | register bool seenx = FALSE; |
9e24b6e2 | 2917 | register bool overflowed = FALSE; |
9e24b6e2 | 2918 | char *hexdigit; |
fe14fcc3 | 2919 | |
9e24b6e2 JH |
2920 | for (; len-- && *s; s++) { |
2921 | hexdigit = strchr((char *) PL_hexdigit, *s); | |
2922 | if (!hexdigit) { | |
2923 | if (*s == '_') | |
2924 | continue; /* Note: does not check for __ and the like. */ | |
2cc4c2dc | 2925 | if (seenx == FALSE && *s == 'x' && ruv == 0) { |
252aa082 JH |
2926 | /* Disallow 0xxx0x0xxx... */ |
2927 | seenx = TRUE; | |
252aa082 JH |
2928 | continue; |
2929 | } | |
a0ed51b3 | 2930 | else { |
d008e5eb | 2931 | dTHR; |
627300f0 JH |
2932 | if (ckWARN(WARN_DIGIT)) |
2933 | Perl_warner(aTHX_ WARN_DIGIT, | |
252aa082 | 2934 | "Illegal hexadecimal digit '%c' ignored", *s); |
a0ed51b3 LW |
2935 | break; |
2936 | } | |
2937 | } | |
9e24b6e2 JH |
2938 | if (!overflowed) { |
2939 | register UV xuv = ruv << 4; | |
2940 | ||
2941 | if ((xuv >> 4) != ruv) { | |
2942 | dTHR; | |
2943 | overflowed = TRUE; | |
2944 | rnv = (NV) ruv; | |
627300f0 JH |
2945 | if (ckWARN_d(WARN_OVERFLOW)) |
2946 | Perl_warner(aTHX_ WARN_OVERFLOW, | |
9e24b6e2 JH |
2947 | "Integer overflow in hexadecimal number"); |
2948 | } else | |
2949 | ruv = xuv | ((hexdigit - PL_hexdigit) & 15); | |
2950 | } | |
2951 | if (overflowed) { | |
2952 | rnv *= 16.0; | |
2953 | /* If an NV has not enough bits in its mantissa to | |
2954 | * represent an UV this summing of small low-order numbers | |
2955 | * is a waste of time (because the NV cannot preserve | |
2956 | * the low-order bits anyway): we could just remember when | |
2957 | * did we overflow and in the end just multiply rnv by the | |
2958 | * right amount of 16-tuples. */ | |
2959 | rnv += (NV)((hexdigit - PL_hexdigit) & 15); | |
2960 | } | |
6ff81951 | 2961 | } |
9e24b6e2 JH |
2962 | if (!overflowed) |
2963 | rnv = (NV) ruv; | |
893fe2c2 JH |
2964 | if ( ( overflowed && rnv > 4294967295.0) |
2965 | #if UV_SIZEOF > 4 | |
2966 | || (!overflowed && ruv > 0xffffffff ) | |
2967 | #endif | |
2968 | ) { | |
252aa082 | 2969 | dTHR; |
627300f0 JH |
2970 | if (ckWARN(WARN_PORTABLE)) |
2971 | Perl_warner(aTHX_ WARN_PORTABLE, | |
252aa082 JH |
2972 | "Hexadecimal number > 0xffffffff non-portable"); |
2973 | } | |
fe14fcc3 | 2974 | *retlen = s - start; |
9e24b6e2 | 2975 | return rnv; |
fe14fcc3 | 2976 | } |
760ac839 | 2977 | |
491527d0 | 2978 | char* |
864dbfa3 | 2979 | Perl_find_script(pTHX_ char *scriptname, bool dosearch, char **search_ext, I32 flags) |
491527d0 GS |
2980 | { |
2981 | dTHR; | |
2982 | char *xfound = Nullch; | |
2983 | char *xfailed = Nullch; | |
0f31cffe | 2984 | char tmpbuf[MAXPATHLEN]; |
491527d0 GS |
2985 | register char *s; |
2986 | I32 len; | |
2987 | int retval; | |
2988 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) | |
2989 | # define SEARCH_EXTS ".bat", ".cmd", NULL | |
2990 | # define MAX_EXT_LEN 4 | |
2991 | #endif | |
2992 | #ifdef OS2 | |
2993 | # define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL | |
2994 | # define MAX_EXT_LEN 4 | |
2995 | #endif | |
2996 | #ifdef VMS | |
2997 | # define SEARCH_EXTS ".pl", ".com", NULL | |
2998 | # define MAX_EXT_LEN 4 | |
2999 | #endif | |
3000 | /* additional extensions to try in each dir if scriptname not found */ | |
3001 | #ifdef SEARCH_EXTS | |
3002 | char *exts[] = { SEARCH_EXTS }; | |
3003 | char **ext = search_ext ? search_ext : exts; | |
3004 | int extidx = 0, i = 0; | |
3005 | char *curext = Nullch; | |
3006 | #else | |
3007 | # define MAX_EXT_LEN 0 | |
3008 | #endif | |
3009 | ||
3010 | /* | |
3011 | * If dosearch is true and if scriptname does not contain path | |
3012 | * delimiters, search the PATH for scriptname. | |
3013 | * | |
3014 | * If SEARCH_EXTS is also defined, will look for each | |
3015 | * scriptname{SEARCH_EXTS} whenever scriptname is not found | |
3016 | * while searching the PATH. | |
3017 | * | |
3018 | * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search | |
3019 | * proceeds as follows: | |
3020 | * If DOSISH or VMSISH: | |
3021 | * + look for ./scriptname{,.foo,.bar} | |
3022 | * + search the PATH for scriptname{,.foo,.bar} | |
3023 | * | |
3024 | * If !DOSISH: | |
3025 | * + look *only* in the PATH for scriptname{,.foo,.bar} (note | |
3026 | * this will not look in '.' if it's not in the PATH) | |
3027 | */ | |
84486fc6 | 3028 | tmpbuf[0] = '\0'; |
491527d0 GS |
3029 | |
3030 | #ifdef VMS | |
3031 | # ifdef ALWAYS_DEFTYPES | |
3032 | len = strlen(scriptname); | |
3033 | if (!(len == 1 && *scriptname == '-') && scriptname[len-1] != ':') { | |
3034 | int hasdir, idx = 0, deftypes = 1; | |
3035 | bool seen_dot = 1; | |
3036 | ||
3037 | hasdir = !dosearch || (strpbrk(scriptname,":[</") != Nullch) ; | |
3038 | # else | |
3039 | if (dosearch) { | |
3040 | int hasdir, idx = 0, deftypes = 1; | |
3041 | bool seen_dot = 1; | |
3042 | ||
3043 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; | |
3044 | # endif | |
3045 | /* The first time through, just add SEARCH_EXTS to whatever we | |
3046 | * already have, so we can check for default file types. */ | |
3047 | while (deftypes || | |
84486fc6 | 3048 | (!hasdir && my_trnlnm("DCL$PATH",tmpbuf,idx++)) ) |
491527d0 GS |
3049 | { |
3050 | if (deftypes) { | |
3051 | deftypes = 0; | |
84486fc6 | 3052 | *tmpbuf = '\0'; |
491527d0 | 3053 | } |
84486fc6 GS |
3054 | if ((strlen(tmpbuf) + strlen(scriptname) |
3055 | + MAX_EXT_LEN) >= sizeof tmpbuf) | |
491527d0 | 3056 | continue; /* don't search dir with too-long name */ |
84486fc6 | 3057 | strcat(tmpbuf, scriptname); |
491527d0 GS |
3058 | #else /* !VMS */ |
3059 | ||
3060 | #ifdef DOSISH | |
3061 | if (strEQ(scriptname, "-")) | |
3062 | dosearch = 0; | |
3063 | if (dosearch) { /* Look in '.' first. */ | |
3064 | char *cur = scriptname; | |
3065 | #ifdef SEARCH_EXTS | |
3066 | if ((curext = strrchr(scriptname,'.'))) /* possible current ext */ | |
3067 | while (ext[i]) | |
3068 | if (strEQ(ext[i++],curext)) { | |
3069 | extidx = -1; /* already has an ext */ | |
3070 | break; | |
3071 | } | |
3072 | do { | |
3073 | #endif | |
3074 | DEBUG_p(PerlIO_printf(Perl_debug_log, | |
3075 | "Looking for %s\n",cur)); | |
017f25f1 IZ |
3076 | if (PerlLIO_stat(cur,&PL_statbuf) >= 0 |
3077 | && !S_ISDIR(PL_statbuf.st_mode)) { | |
491527d0 GS |
3078 | dosearch = 0; |
3079 | scriptname = cur; | |
3080 | #ifdef SEARCH_EXTS | |
3081 | break; | |
3082 | #endif | |
3083 | } | |
3084 | #ifdef SEARCH_EXTS | |
3085 | if (cur == scriptname) { | |
3086 | len = strlen(scriptname); | |
84486fc6 | 3087 | if (len+MAX_EXT_LEN+1 >= sizeof(tmpbuf)) |
491527d0 | 3088 | break; |
84486fc6 | 3089 | cur = strcpy(tmpbuf, scriptname); |
491527d0 GS |
3090 | } |
3091 | } while (extidx >= 0 && ext[extidx] /* try an extension? */ | |
84486fc6 | 3092 | && strcpy(tmpbuf+len, ext[extidx++])); |
491527d0 GS |
3093 | #endif |
3094 | } | |
3095 | #endif | |
3096 | ||
3097 | if (dosearch && !strchr(scriptname, '/') | |
3098 | #ifdef DOSISH | |
3099 | && !strchr(scriptname, '\\') | |
3100 | #endif | |
3101 | && (s = PerlEnv_getenv("PATH"))) { | |
3102 | bool seen_dot = 0; | |
3103 | ||
3280af22 NIS |
3104 | PL_bufend = s + strlen(s); |
3105 | while (s < PL_bufend) { | |
491527d0 GS |
3106 | #if defined(atarist) || defined(DOSISH) |
3107 | for (len = 0; *s | |
3108 | # ifdef atarist | |
3109 | && *s != ',' | |
3110 | # endif | |
3111 | && *s != ';'; len++, s++) { | |
84486fc6 GS |
3112 | if (len < sizeof tmpbuf) |
3113 | tmpbuf[len] = *s; | |
491527d0 | 3114 | } |
84486fc6 GS |
3115 | if (len < sizeof tmpbuf) |
3116 | tmpbuf[len] = '\0'; | |
491527d0 | 3117 | #else /* ! (atarist || DOSISH) */ |
3280af22 | 3118 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend, |
491527d0 GS |
3119 | ':', |
3120 | &len); | |
3121 | #endif /* ! (atarist || DOSISH) */ | |
3280af22 | 3122 | if (s < PL_bufend) |
491527d0 | 3123 | s++; |
84486fc6 | 3124 | if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf) |
491527d0 GS |
3125 | continue; /* don't search dir with too-long name */ |
3126 | if (len | |
61ae2fbf | 3127 | #if defined(atarist) || defined(__MINT__) || defined(DOSISH) |
84486fc6 GS |
3128 | && tmpbuf[len - 1] != '/' |
3129 | && tmpbuf[len - 1] != '\\' | |
491527d0 GS |
3130 | #endif |
3131 | ) | |
84486fc6 GS |
3132 | tmpbuf[len++] = '/'; |
3133 | if (len == 2 && tmpbuf[0] == '.') | |
491527d0 | 3134 | seen_dot = 1; |
84486fc6 | 3135 | (void)strcpy(tmpbuf + len, scriptname); |
491527d0 GS |
3136 | #endif /* !VMS */ |
3137 | ||
3138 | #ifdef SEARCH_EXTS | |
84486fc6 | 3139 | len = strlen(tmpbuf); |
491527d0 GS |
3140 | if (extidx > 0) /* reset after previous loop */ |
3141 | extidx = 0; | |
3142 | do { | |
3143 | #endif | |
84486fc6 | 3144 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tmpbuf)); |
3280af22 | 3145 | retval = PerlLIO_stat(tmpbuf,&PL_statbuf); |
017f25f1 IZ |
3146 | if (S_ISDIR(PL_statbuf.st_mode)) { |
3147 | retval = -1; | |
3148 | } | |
491527d0 GS |
3149 | #ifdef SEARCH_EXTS |
3150 | } while ( retval < 0 /* not there */ | |
3151 | && extidx>=0 && ext[extidx] /* try an extension? */ | |
84486fc6 | 3152 | && strcpy(tmpbuf+len, ext[extidx++]) |
491527d0 GS |
3153 | ); |
3154 | #endif | |
3155 | if (retval < 0) | |
3156 | continue; | |
3280af22 NIS |
3157 | if (S_ISREG(PL_statbuf.st_mode) |
3158 | && cando(S_IRUSR,TRUE,&PL_statbuf) | |
491527d0 | 3159 | #ifndef DOSISH |
3280af22 | 3160 | && cando(S_IXUSR,TRUE,&PL_statbuf) |
491527d0 GS |
3161 | #endif |
3162 | ) | |
3163 | { | |
84486fc6 | 3164 | xfound = tmpbuf; /* bingo! */ |
491527d0 GS |
3165 | break; |
3166 | } | |
3167 | if (!xfailed) | |
84486fc6 | 3168 | xfailed = savepv(tmpbuf); |
491527d0 GS |
3169 | } |
3170 | #ifndef DOSISH | |
017f25f1 IZ |
3171 | if (!xfound && !seen_dot && !xfailed && |
3172 | (PerlLIO_stat(scriptname,&PL_statbuf) < 0 | |
3173 | || S_ISDIR(PL_statbuf.st_mode))) | |
491527d0 GS |
3174 | #endif |
3175 | seen_dot = 1; /* Disable message. */ | |
9ccb31f9 GS |
3176 | if (!xfound) { |
3177 | if (flags & 1) { /* do or die? */ | |
cea2e8a9 | 3178 | Perl_croak(aTHX_ "Can't %s %s%s%s", |
9ccb31f9 GS |
3179 | (xfailed ? "execute" : "find"), |
3180 | (xfailed ? xfailed : scriptname), | |
3181 | (xfailed ? "" : " on PATH"), | |
3182 | (xfailed || seen_dot) ? "" : ", '.' not in PATH"); | |
3183 | } | |
3184 | scriptname = Nullch; | |
3185 | } | |
491527d0 GS |
3186 | if (xfailed) |
3187 | Safefree(xfailed); | |
3188 | scriptname = xfound; | |
3189 | } | |
9ccb31f9 | 3190 | return (scriptname ? savepv(scriptname) : Nullch); |
491527d0 GS |
3191 | } |
3192 | ||
3193 | ||
11343788 | 3194 | #ifdef USE_THREADS |
12ca11f6 MB |
3195 | #ifdef FAKE_THREADS |
3196 | /* Very simplistic scheduler for now */ | |
3197 | void | |
3198 | schedule(void) | |
3199 | { | |
c7848ba1 | 3200 | thr = thr->i.next_run; |
12ca11f6 MB |
3201 | } |
3202 | ||
3203 | void | |
864dbfa3 | 3204 | Perl_cond_init(pTHX_ perl_cond *cp) |
12ca11f6 MB |
3205 | { |
3206 | *cp = 0; | |
3207 | } | |
3208 | ||
3209 | void | |
864dbfa3 | 3210 | Perl_cond_signal(pTHX_ perl_cond *cp) |
12ca11f6 | 3211 | { |
51dd5992 | 3212 | perl_os_thread t; |
12ca11f6 MB |
3213 | perl_cond cond = *cp; |
3214 | ||
3215 | if (!cond) | |
3216 | return; | |
3217 | t = cond->thread; | |
3218 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
3219 | t->i.next_run = thr->i.next_run; |
3220 | thr->i.next_run->i.prev_run = t; | |
3221 | t->i.prev_run = thr; | |
3222 | thr->i.next_run = t; | |
3223 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
3224 | /* Remove from the wait queue */ |
3225 | *cp = cond->next; | |
3226 | Safefree(cond); | |
3227 | } | |
3228 | ||
3229 | void | |
864dbfa3 | 3230 | Perl_cond_broadcast(pTHX_ perl_cond *cp) |
12ca11f6 | 3231 | { |
51dd5992 | 3232 | perl_os_thread t; |
12ca11f6 MB |
3233 | perl_cond cond, cond_next; |
3234 | ||
3235 | for (cond = *cp; cond; cond = cond_next) { | |
3236 | t = cond->thread; | |
3237 | /* Insert t in the runnable queue just ahead of us */ | |
c7848ba1 MB |
3238 | t->i.next_run = thr->i.next_run; |
3239 | thr->i.next_run->i.prev_run = t; | |
3240 | t->i.prev_run = thr; | |
3241 | thr->i.next_run = t; | |
3242 | thr->i.wait_queue = 0; | |
12ca11f6 MB |
3243 | /* Remove from the wait queue */ |
3244 | cond_next = cond->next; | |
3245 | Safefree(cond); | |
3246 | } | |
3247 | *cp = 0; | |
3248 | } | |
3249 | ||
3250 | void | |
864dbfa3 | 3251 | Perl_cond_wait(pTHX_ perl_cond *cp) |
12ca11f6 MB |
3252 | { |
3253 | perl_cond cond; | |
3254 | ||
c7848ba1 | 3255 | if (thr->i.next_run == thr) |
cea2e8a9 | 3256 | Perl_croak(aTHX_ "panic: perl_cond_wait called by last runnable thread"); |
12ca11f6 | 3257 | |
0f15f207 | 3258 | New(666, cond, 1, struct perl_wait_queue); |
12ca11f6 MB |
3259 | cond->thread = thr; |
3260 | cond->next = *cp; | |
3261 | *cp = cond; | |
c7848ba1 | 3262 | thr->i.wait_queue = cond; |
12ca11f6 | 3263 | /* Remove ourselves from runnable queue */ |
c7848ba1 MB |
3264 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
3265 | thr->i.prev_run->i.next_run = thr->i.next_run; | |
12ca11f6 MB |
3266 | } |
3267 | #endif /* FAKE_THREADS */ | |
3268 | ||
0d85d877 | 3269 | #ifdef PTHREAD_GETSPECIFIC_INT |
52e1cb5e | 3270 | struct perl_thread * |
864dbfa3 | 3271 | Perl_getTHR(pTHX) |
11343788 MB |
3272 | { |
3273 | pthread_addr_t t; | |
3274 | ||
6b88bc9c | 3275 | if (pthread_getspecific(PL_thr_key, &t)) |
cea2e8a9 | 3276 | Perl_croak(aTHX_ "panic: pthread_getspecific"); |
52e1cb5e | 3277 | return (struct perl_thread *) t; |
11343788 | 3278 | } |
0d85d877 | 3279 | #endif |
f93b4edd MB |
3280 | |
3281 | MAGIC * | |
864dbfa3 | 3282 | Perl_condpair_magic(pTHX_ SV *sv) |
f93b4edd MB |
3283 | { |
3284 | MAGIC *mg; | |
3285 | ||
3286 | SvUPGRADE(sv, SVt_PVMG); | |
3287 | mg = mg_find(sv, 'm'); | |
3288 | if (!mg) { | |
3289 | condpair_t *cp; | |
3290 | ||
3291 | New(53, cp, 1, condpair_t); | |
3292 | MUTEX_INIT(&cp->mutex); | |
3293 | COND_INIT(&cp->owner_cond); | |
3294 | COND_INIT(&cp->cond); | |
3295 | cp->owner = 0; | |
28a8573f | 3296 | MUTEX_LOCK(&PL_cred_mutex); /* XXX need separate mutex? */ |
f93b4edd MB |
3297 | mg = mg_find(sv, 'm'); |
3298 | if (mg) { | |
3299 | /* someone else beat us to initialising it */ | |
28a8573f | 3300 | MUTEX_UNLOCK(&PL_cred_mutex); /* XXX need separate mutex? */ |
f93b4edd MB |
3301 | MUTEX_DESTROY(&cp->mutex); |
3302 | COND_DESTROY(&cp->owner_cond); | |
3303 | COND_DESTROY(&cp->cond); | |
3304 | Safefree(cp); | |
3305 | } | |
3306 | else { | |
3307 | sv_magic(sv, Nullsv, 'm', 0, 0); | |
3308 | mg = SvMAGIC(sv); | |
3309 | mg->mg_ptr = (char *)cp; | |
565764a8 | 3310 | mg->mg_len = sizeof(cp); |
28a8573f | 3311 | MUTEX_UNLOCK(&PL_cred_mutex); /* XXX need separate mutex? */ |
8b73bbec | 3312 | DEBUG_S(WITH_THR(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 | 3313 | "%p: condpair_magic %p\n", thr, sv));) |
f93b4edd MB |
3314 | } |
3315 | } | |
3316 | return mg; | |
3317 | } | |
a863c7d1 MB |
3318 | |
3319 | /* | |
199100c8 MB |
3320 | * Make a new perl thread structure using t as a prototype. Some of the |
3321 | * fields for the new thread are copied from the prototype thread, t, | |
3322 | * so t should not be running in perl at the time this function is | |
3323 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the | |
3324 | * thread calling new_struct_thread) clearly satisfies this constraint. | |
a863c7d1 | 3325 | */ |
52e1cb5e | 3326 | struct perl_thread * |
864dbfa3 | 3327 | Perl_new_struct_thread(pTHX_ struct perl_thread *t) |
a863c7d1 | 3328 | { |
c5be433b | 3329 | #if !defined(PERL_IMPLICIT_CONTEXT) |
52e1cb5e | 3330 | struct perl_thread *thr; |
cea2e8a9 | 3331 | #endif |
a863c7d1 | 3332 | SV *sv; |
199100c8 MB |
3333 | SV **svp; |
3334 | I32 i; | |
3335 | ||
79cb57f6 | 3336 | sv = newSVpvn("", 0); |
52e1cb5e JH |
3337 | SvGROW(sv, sizeof(struct perl_thread) + 1); |
3338 | SvCUR_set(sv, sizeof(struct perl_thread)); | |
199100c8 | 3339 | thr = (Thread) SvPVX(sv); |
949ced2d | 3340 | #ifdef DEBUGGING |
52e1cb5e | 3341 | memset(thr, 0xab, sizeof(struct perl_thread)); |
533c011a NIS |
3342 | PL_markstack = 0; |
3343 | PL_scopestack = 0; | |
3344 | PL_savestack = 0; | |
3345 | PL_retstack = 0; | |
3346 | PL_dirty = 0; | |
3347 | PL_localizing = 0; | |
949ced2d GS |
3348 | Zero(&PL_hv_fetch_ent_mh, 1, HE); |
3349 | #else | |
3350 | Zero(thr, 1, struct perl_thread); | |
3351 | #endif | |
199100c8 | 3352 | |
0b94c7bb | 3353 | PL_protect = MEMBER_TO_FPTR(Perl_default_protect); |
312caa8e | 3354 | |
199100c8 | 3355 | thr->oursv = sv; |
cea2e8a9 | 3356 | init_stacks(); |
a863c7d1 | 3357 | |
533c011a | 3358 | PL_curcop = &PL_compiling; |
c5be433b | 3359 | thr->interp = t->interp; |
199100c8 | 3360 | thr->cvcache = newHV(); |
54b9620d | 3361 | thr->threadsv = newAV(); |
a863c7d1 | 3362 | thr->specific = newAV(); |
79cb57f6 | 3363 | thr->errsv = newSVpvn("", 0); |
38a03e6e | 3364 | thr->errhv = newHV(); |
a863c7d1 MB |
3365 | thr->flags = THRf_R_JOINABLE; |
3366 | MUTEX_INIT(&thr->mutex); | |
199100c8 | 3367 | |
d55594ae GS |
3368 | /* top_env needs to be non-zero. It points to an area |
3369 | in which longjmp() stuff is stored, as C callstack | |
3370 | info there at least is thread specific this has to | |
3371 | be per-thread. Otherwise a 'die' in a thread gives | |
3372 | that thread the C stack of last thread to do an eval {}! | |
3373 | See comments in scope.h | |
3374 | Initialize top entry (as in perl.c for main thread) | |
3375 | */ | |
533c011a NIS |
3376 | PL_start_env.je_prev = NULL; |
3377 | PL_start_env.je_ret = -1; | |
3378 | PL_start_env.je_mustcatch = TRUE; | |
3379 | PL_top_env = &PL_start_env; | |
3380 | ||
faef0170 | 3381 | PL_in_eval = EVAL_NULL; /* ~(EVAL_INEVAL|EVAL_WARNONLY|EVAL_KEEPERR) */ |
533c011a NIS |
3382 | PL_restartop = 0; |
3383 | ||
b099ddc0 GS |
3384 | PL_statname = NEWSV(66,0); |
3385 | PL_maxscream = -1; | |
0b94c7bb GS |
3386 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
3387 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); | |
3388 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); | |
3389 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); | |
3390 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); | |
b099ddc0 GS |
3391 | PL_regindent = 0; |
3392 | PL_reginterp_cnt = 0; | |
3393 | PL_lastscream = Nullsv; | |
3394 | PL_screamfirst = 0; | |
3395 | PL_screamnext = 0; | |
3396 | PL_reg_start_tmp = 0; | |
3397 | PL_reg_start_tmpl = 0; | |
14ed4b74 | 3398 | PL_reg_poscache = Nullch; |
b099ddc0 GS |
3399 | |
3400 | /* parent thread's data needs to be locked while we make copy */ | |
3401 | MUTEX_LOCK(&t->mutex); | |
3402 | ||
312caa8e CS |
3403 | PL_protect = t->Tprotect; |
3404 | ||
b099ddc0 GS |
3405 | PL_curcop = t->Tcurcop; /* XXX As good a guess as any? */ |
3406 | PL_defstash = t->Tdefstash; /* XXX maybe these should */ | |
3407 | PL_curstash = t->Tcurstash; /* always be set to main? */ | |
3408 | ||
6b88bc9c | 3409 | PL_tainted = t->Ttainted; |
84fee439 NIS |
3410 | PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */ |
3411 | PL_nrs = newSVsv(t->Tnrs); | |
3412 | PL_rs = SvREFCNT_inc(PL_nrs); | |
3413 | PL_last_in_gv = Nullgv; | |
3414 | PL_ofslen = t->Tofslen; | |
3415 | PL_ofs = savepvn(t->Tofs, PL_ofslen); | |
3416 | PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); | |
3417 | PL_chopset = t->Tchopset; | |
3418 | PL_formtarget = newSVsv(t->Tformtarget); | |
3419 | PL_bodytarget = newSVsv(t->Tbodytarget); | |
3420 | PL_toptarget = newSVsv(t->Ttoptarget); | |
533c011a | 3421 | |
54b9620d MB |
3422 | /* Initialise all per-thread SVs that the template thread used */ |
3423 | svp = AvARRAY(t->threadsv); | |
93965878 | 3424 | for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) { |
533c011a | 3425 | if (*svp && *svp != &PL_sv_undef) { |
199100c8 | 3426 | SV *sv = newSVsv(*svp); |
54b9620d | 3427 | av_store(thr->threadsv, i, sv); |
533c011a | 3428 | sv_magic(sv, 0, 0, &PL_threadsv_names[i], 1); |
8b73bbec | 3429 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
54b9620d | 3430 | "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr)); |
199100c8 MB |
3431 | } |
3432 | } | |
940cb80d | 3433 | thr->threadsvp = AvARRAY(thr->threadsv); |
199100c8 | 3434 | |
533c011a NIS |
3435 | MUTEX_LOCK(&PL_threads_mutex); |
3436 | PL_nthreads++; | |
3437 | thr->tid = ++PL_threadnum; | |
199100c8 MB |
3438 | thr->next = t->next; |
3439 | thr->prev = t; | |
3440 | t->next = thr; | |
3441 | thr->next->prev = thr; | |
533c011a | 3442 | MUTEX_UNLOCK(&PL_threads_mutex); |
a863c7d1 | 3443 | |
b099ddc0 GS |
3444 | /* done copying parent's state */ |
3445 | MUTEX_UNLOCK(&t->mutex); | |
3446 | ||
a863c7d1 | 3447 | #ifdef HAVE_THREAD_INTERN |
4f63d024 | 3448 | Perl_init_thread_intern(thr); |
a863c7d1 | 3449 | #endif /* HAVE_THREAD_INTERN */ |
a863c7d1 MB |
3450 | return thr; |
3451 | } | |
11343788 | 3452 | #endif /* USE_THREADS */ |
760ac839 LW |
3453 | |
3454 | #ifdef HUGE_VAL | |
3455 | /* | |
3456 | * This hack is to force load of "huge" support from libm.a | |
3457 | * So it is in perl for (say) POSIX to use. | |
3458 | * Needed for SunOS with Sun's 'acc' for example. | |
3459 | */ | |
65202027 | 3460 | NV |
8ac85365 | 3461 | Perl_huge(void) |
760ac839 LW |
3462 | { |
3463 | return HUGE_VAL; | |
3464 | } | |
3465 | #endif | |
4e35701f | 3466 | |
22239a37 NIS |
3467 | #ifdef PERL_GLOBAL_STRUCT |
3468 | struct perl_vars * | |
864dbfa3 | 3469 | Perl_GetVars(pTHX) |
22239a37 | 3470 | { |
533c011a | 3471 | return &PL_Vars; |
22239a37 | 3472 | } |
31fb1209 NIS |
3473 | #endif |
3474 | ||
3475 | char ** | |
864dbfa3 | 3476 | Perl_get_op_names(pTHX) |
31fb1209 | 3477 | { |
22c35a8c | 3478 | return PL_op_name; |
31fb1209 NIS |
3479 | } |
3480 | ||
3481 | char ** | |
864dbfa3 | 3482 | Perl_get_op_descs(pTHX) |
31fb1209 | 3483 | { |
22c35a8c | 3484 | return PL_op_desc; |
31fb1209 | 3485 | } |
9e6b2b00 GS |
3486 | |
3487 | char * | |
864dbfa3 | 3488 | Perl_get_no_modify(pTHX) |
9e6b2b00 | 3489 | { |
22c35a8c | 3490 | return (char*)PL_no_modify; |
9e6b2b00 GS |
3491 | } |
3492 | ||
3493 | U32 * | |
864dbfa3 | 3494 | Perl_get_opargs(pTHX) |
9e6b2b00 | 3495 | { |
22c35a8c | 3496 | return PL_opargs; |
9e6b2b00 | 3497 | } |
51aa15f3 | 3498 | |
0cb96387 GS |
3499 | PPADDR_t* |
3500 | Perl_get_ppaddr(pTHX) | |
3501 | { | |
3502 | return &PL_ppaddr; | |
3503 | } | |
3504 | ||
a6c40364 GS |
3505 | #ifndef HAS_GETENV_LEN |
3506 | char * | |
864dbfa3 | 3507 | Perl_getenv_len(pTHX_ char *env_elem, unsigned long *len) |
a6c40364 GS |
3508 | { |
3509 | char *env_trans = PerlEnv_getenv(env_elem); | |
3510 | if (env_trans) | |
3511 | *len = strlen(env_trans); | |
3512 | return env_trans; | |
f675dbe5 CB |
3513 | } |
3514 | #endif | |
3515 | ||
dc9e4912 GS |
3516 | |
3517 | MGVTBL* | |
864dbfa3 | 3518 | Perl_get_vtbl(pTHX_ int vtbl_id) |
dc9e4912 GS |
3519 | { |
3520 | MGVTBL* result = Null(MGVTBL*); | |
3521 | ||
3522 | switch(vtbl_id) { | |
3523 | case want_vtbl_sv: | |
3524 | result = &PL_vtbl_sv; | |
3525 | break; | |
3526 | case want_vtbl_env: | |
3527 | result = &PL_vtbl_env; | |
3528 | break; | |
3529 | case want_vtbl_envelem: | |
3530 | result = &PL_vtbl_envelem; | |
3531 | break; | |
3532 | case want_vtbl_sig: | |
3533 | result = &PL_vtbl_sig; | |
3534 | break; | |
3535 | case want_vtbl_sigelem: | |
3536 | result = &PL_vtbl_sigelem; | |
3537 | break; | |
3538 | case want_vtbl_pack: | |
3539 | result = &PL_vtbl_pack; | |
3540 | break; | |
3541 | case want_vtbl_packelem: | |
3542 | result = &PL_vtbl_packelem; | |
3543 | break; | |
3544 | case want_vtbl_dbline: | |
3545 | result = &PL_vtbl_dbline; | |
3546 | break; | |
3547 | case want_vtbl_isa: | |
3548 | result = &PL_vtbl_isa; | |
3549 | break; | |
3550 | case want_vtbl_isaelem: | |
3551 | result = &PL_vtbl_isaelem; | |
3552 | break; | |
3553 | case want_vtbl_arylen: | |
3554 | result = &PL_vtbl_arylen; | |
3555 | break; | |
3556 | case want_vtbl_glob: | |
3557 | result = &PL_vtbl_glob; | |
3558 | break; | |
3559 | case want_vtbl_mglob: | |
3560 | result = &PL_vtbl_mglob; | |
3561 | break; | |
3562 | case want_vtbl_nkeys: | |
3563 | result = &PL_vtbl_nkeys; | |
3564 | break; | |
3565 | case want_vtbl_taint: | |
3566 | result = &PL_vtbl_taint; | |
3567 | break; | |
3568 | case want_vtbl_substr: | |
3569 | result = &PL_vtbl_substr; | |
3570 | break; | |
3571 | case want_vtbl_vec: | |
3572 | result = &PL_vtbl_vec; | |
3573 | break; | |
3574 | case want_vtbl_pos: | |
3575 | result = &PL_vtbl_pos; | |
3576 | break; | |
3577 | case want_vtbl_bm: | |
3578 | result = &PL_vtbl_bm; | |
3579 | break; | |
3580 | case want_vtbl_fm: | |
3581 | result = &PL_vtbl_fm; | |
3582 | break; | |
3583 | case want_vtbl_uvar: | |
3584 | result = &PL_vtbl_uvar; | |
3585 | break; | |
3586 | #ifdef USE_THREADS | |
3587 | case want_vtbl_mutex: | |
3588 | result = &PL_vtbl_mutex; | |
3589 | break; | |
3590 | #endif | |
3591 | case want_vtbl_defelem: | |
3592 | result = &PL_vtbl_defelem; | |
3593 | break; | |
3594 | case want_vtbl_regexp: | |
3595 | result = &PL_vtbl_regexp; | |
3596 | break; | |
3597 | case want_vtbl_regdata: | |
3598 | result = &PL_vtbl_regdata; | |
3599 | break; | |
3600 | case want_vtbl_regdatum: | |
3601 | result = &PL_vtbl_regdatum; | |
3602 | break; | |
3c90161d | 3603 | #ifdef USE_LOCALE_COLLATE |
dc9e4912 GS |
3604 | case want_vtbl_collxfrm: |
3605 | result = &PL_vtbl_collxfrm; | |
3606 | break; | |
3c90161d | 3607 | #endif |
dc9e4912 GS |
3608 | case want_vtbl_amagic: |
3609 | result = &PL_vtbl_amagic; | |
3610 | break; | |
3611 | case want_vtbl_amagicelem: | |
3612 | result = &PL_vtbl_amagicelem; | |
3613 | break; | |
810b8aa5 GS |
3614 | case want_vtbl_backref: |
3615 | result = &PL_vtbl_backref; | |
3616 | break; | |
dc9e4912 GS |
3617 | } |
3618 | return result; | |
3619 | } | |
3620 | ||
767df6a1 | 3621 | I32 |
864dbfa3 | 3622 | Perl_my_fflush_all(pTHX) |
767df6a1 JH |
3623 | { |
3624 | #ifdef FFLUSH_NULL | |
ce720889 | 3625 | return PerlIO_flush(NULL); |
767df6a1 JH |
3626 | #else |
3627 | long open_max = -1; | |
ed39a0f2 | 3628 | # if defined(FFLUSH_ALL) && defined(HAS_STDIO_STREAM_ARRAY) |
d2201af2 AD |
3629 | # ifdef PERL_FFLUSH_ALL_FOPEN_MAX |
3630 | open_max = PERL_FFLUSH_ALL_FOPEN_MAX; | |
3631 | # else | |
767df6a1 JH |
3632 | # if defined(HAS_SYSCONF) && defined(_SC_OPEN_MAX) |
3633 | open_max = sysconf(_SC_OPEN_MAX); | |
3634 | # else | |
3635 | # ifdef FOPEN_MAX | |
d2201af2 | 3636 | open_max = FOPEN_MAX; |
767df6a1 JH |
3637 | # else |
3638 | # ifdef OPEN_MAX | |
d2201af2 | 3639 | open_max = OPEN_MAX; |
767df6a1 JH |
3640 | # else |
3641 | # ifdef _NFILE | |
d2201af2 | 3642 | open_max = _NFILE; |
767df6a1 JH |
3643 | # endif |
3644 | # endif | |
3645 | # endif | |
3646 | # endif | |
d2201af2 | 3647 | # endif |
767df6a1 JH |
3648 | if (open_max > 0) { |
3649 | long i; | |
3650 | for (i = 0; i < open_max; i++) | |
d2201af2 AD |
3651 | if (STDIO_STREAM_ARRAY[i]._file >= 0 && |
3652 | STDIO_STREAM_ARRAY[i]._file < open_max && | |
3653 | STDIO_STREAM_ARRAY[i]._flag) | |
3654 | PerlIO_flush(&STDIO_STREAM_ARRAY[i]); | |
767df6a1 JH |
3655 | return 0; |
3656 | } | |
3657 | # endif | |
3658 | SETERRNO(EBADF,RMS$_IFI); | |
3659 | return EOF; | |
3660 | #endif | |
3661 | } | |
097ee67d | 3662 | |
65202027 | 3663 | NV |
5b877257 | 3664 | Perl_my_atof(pTHX_ const char* s) { |
097ee67d | 3665 | #ifdef USE_LOCALE_NUMERIC |
d43ce814 | 3666 | if ((PL_hints & HINT_LOCALE) && PL_numeric_local) { |
65202027 | 3667 | NV x, y; |
097ee67d | 3668 | |
65202027 | 3669 | x = Perl_atof(s); |
097ee67d | 3670 | SET_NUMERIC_STANDARD(); |
65202027 | 3671 | y = Perl_atof(s); |
097ee67d JH |
3672 | SET_NUMERIC_LOCAL(); |
3673 | if ((y < 0.0 && y < x) || (y > 0.0 && y > x)) | |
3674 | return y; | |
3675 | return x; | |
65202027 DS |
3676 | } |
3677 | else | |
3678 | return Perl_atof(s); | |
097ee67d | 3679 | #else |
65202027 | 3680 | return Perl_atof(s); |
097ee67d JH |
3681 | #endif |
3682 | } |