Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* util.c |
a687059c | 2 | * |
a0d0e21e | 3 | * Copyright (c) 1991-1994, Larry Wall |
a687059c | 4 | * |
d48672a2 LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
8d063cd8 | 7 | * |
8d063cd8 | 8 | */ |
a0d0e21e LW |
9 | |
10 | /* | |
11 | * "Very useful, no doubt, that was to Saruman; yet it seems that he was | |
12 | * not content." --Gandalf | |
13 | */ | |
8d063cd8 | 14 | |
8d063cd8 | 15 | #include "EXTERN.h" |
8d063cd8 | 16 | #include "perl.h" |
62b28dd9 | 17 | |
6eb13c3b | 18 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
a687059c | 19 | #include <signal.h> |
62b28dd9 | 20 | #endif |
a687059c | 21 | |
bd4080b3 | 22 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
85e6fe83 | 23 | #ifdef I_UNISTD |
8990e307 LW |
24 | # include <unistd.h> |
25 | #endif | |
26 | ||
a687059c LW |
27 | #ifdef I_VFORK |
28 | # include <vfork.h> | |
29 | #endif | |
30 | ||
94b6baf5 AD |
31 | /* Put this after #includes because fork and vfork prototypes may |
32 | conflict. | |
33 | */ | |
34 | #ifndef HAS_VFORK | |
35 | # define vfork fork | |
36 | #endif | |
37 | ||
fe14fcc3 LW |
38 | #ifdef I_FCNTL |
39 | # include <fcntl.h> | |
40 | #endif | |
41 | #ifdef I_SYS_FILE | |
42 | # include <sys/file.h> | |
43 | #endif | |
44 | ||
8d063cd8 | 45 | #define FLUSH |
8d063cd8 | 46 | |
a0d0e21e LW |
47 | #ifdef LEAKTEST |
48 | static void xstat _((void)); | |
49 | #endif | |
50 | ||
55497cff | 51 | #ifndef MYMALLOC |
de3bb511 | 52 | |
8d063cd8 LW |
53 | /* paranoid version of malloc */ |
54 | ||
a687059c LW |
55 | /* NOTE: Do not call the next three routines directly. Use the macros |
56 | * in handy.h, so that we can easily redefine everything to do tracking of | |
57 | * allocated hunks back to the original New to track down any memory leaks. | |
20cec16a | 58 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c LW |
59 | */ |
60 | ||
bd4080b3 | 61 | Malloc_t |
8d063cd8 LW |
62 | safemalloc(size) |
63 | MEM_SIZE size; | |
64 | { | |
bd4080b3 | 65 | Malloc_t ptr; |
55497cff | 66 | #ifdef HAS_64K_LIMIT |
62b28dd9 | 67 | if (size > 0xffff) { |
760ac839 | 68 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
79072805 | 69 | my_exit(1); |
62b28dd9 | 70 | } |
55497cff | 71 | #endif /* HAS_64K_LIMIT */ |
34de22dd LW |
72 | #ifdef DEBUGGING |
73 | if ((long)size < 0) | |
463ee0b2 | 74 | croak("panic: malloc"); |
34de22dd | 75 | #endif |
8d063cd8 | 76 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 | 77 | #if !(defined(I286) || defined(atarist)) |
760ac839 | 78 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
79072805 | 79 | #else |
760ac839 | 80 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
8d063cd8 LW |
81 | #endif |
82 | if (ptr != Nullch) | |
83 | return ptr; | |
7c0587c8 LW |
84 | else if (nomemok) |
85 | return Nullch; | |
8d063cd8 | 86 | else { |
760ac839 | 87 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 | 88 | my_exit(1); |
8d063cd8 LW |
89 | } |
90 | /*NOTREACHED*/ | |
91 | } | |
92 | ||
93 | /* paranoid version of realloc */ | |
94 | ||
bd4080b3 | 95 | Malloc_t |
8d063cd8 | 96 | saferealloc(where,size) |
bd4080b3 | 97 | Malloc_t where; |
8d063cd8 LW |
98 | MEM_SIZE size; |
99 | { | |
bd4080b3 | 100 | Malloc_t ptr; |
ecfc5424 | 101 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
bd4080b3 | 102 | Malloc_t realloc(); |
ecfc5424 | 103 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 | 104 | |
55497cff | 105 | #ifdef HAS_64K_LIMIT |
62b28dd9 | 106 | if (size > 0xffff) { |
760ac839 | 107 | PerlIO_printf(PerlIO_stderr(), "Reallocation too large: %lx\n", size) FLUSH; |
79072805 | 108 | my_exit(1); |
62b28dd9 | 109 | } |
55497cff | 110 | #endif /* HAS_64K_LIMIT */ |
378cc40b | 111 | if (!where) |
463ee0b2 | 112 | croak("Null realloc"); |
34de22dd LW |
113 | #ifdef DEBUGGING |
114 | if ((long)size < 0) | |
463ee0b2 | 115 | croak("panic: realloc"); |
34de22dd | 116 | #endif |
8d063cd8 | 117 | ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ |
79072805 LW |
118 | |
119 | #if !(defined(I286) || defined(atarist)) | |
120 | DEBUG_m( { | |
760ac839 LW |
121 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++); |
122 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); | |
79072805 LW |
123 | } ) |
124 | #else | |
125 | DEBUG_m( { | |
760ac839 LW |
126 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++); |
127 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); | |
79072805 | 128 | } ) |
8d063cd8 | 129 | #endif |
79072805 | 130 | |
8d063cd8 LW |
131 | if (ptr != Nullch) |
132 | return ptr; | |
7c0587c8 LW |
133 | else if (nomemok) |
134 | return Nullch; | |
8d063cd8 | 135 | else { |
760ac839 | 136 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 | 137 | my_exit(1); |
8d063cd8 LW |
138 | } |
139 | /*NOTREACHED*/ | |
140 | } | |
141 | ||
142 | /* safe version of free */ | |
143 | ||
a687059c | 144 | void |
8d063cd8 | 145 | safefree(where) |
bd4080b3 | 146 | Malloc_t where; |
8d063cd8 | 147 | { |
79072805 | 148 | #if !(defined(I286) || defined(atarist)) |
760ac839 | 149 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++)); |
79072805 | 150 | #else |
760ac839 | 151 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++)); |
8d063cd8 | 152 | #endif |
378cc40b | 153 | if (where) { |
de3bb511 | 154 | /*SUPPRESS 701*/ |
378cc40b LW |
155 | free(where); |
156 | } | |
8d063cd8 LW |
157 | } |
158 | ||
1050c9ca | 159 | /* safe version of calloc */ |
160 | ||
bd4080b3 | 161 | Malloc_t |
1050c9ca | 162 | safecalloc(count, size) |
163 | MEM_SIZE count; | |
164 | MEM_SIZE size; | |
165 | { | |
bd4080b3 | 166 | Malloc_t ptr; |
1050c9ca | 167 | |
55497cff | 168 | #ifdef HAS_64K_LIMIT |
1050c9ca | 169 | if (size * count > 0xffff) { |
760ac839 | 170 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size * count) FLUSH; |
1050c9ca | 171 | my_exit(1); |
172 | } | |
55497cff | 173 | #endif /* HAS_64K_LIMIT */ |
1050c9ca | 174 | #ifdef DEBUGGING |
175 | if ((long)size < 0 || (long)count < 0) | |
176 | croak("panic: calloc"); | |
177 | #endif | |
178 | #if !(defined(I286) || defined(atarist)) | |
760ac839 | 179 | DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca | 180 | #else |
760ac839 | 181 | DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca | 182 | #endif |
183 | size *= count; | |
184 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ | |
185 | if (ptr != Nullch) { | |
186 | memset((void*)ptr, 0, size); | |
187 | return ptr; | |
188 | } | |
189 | else if (nomemok) | |
190 | return Nullch; | |
191 | else { | |
760ac839 | 192 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
1050c9ca | 193 | my_exit(1); |
194 | } | |
195 | /*NOTREACHED*/ | |
196 | } | |
197 | ||
55497cff | 198 | #endif /* !MYMALLOC */ |
de3bb511 | 199 | |
a687059c LW |
200 | #ifdef LEAKTEST |
201 | ||
202 | #define ALIGN sizeof(long) | |
8d063cd8 | 203 | |
bd4080b3 | 204 | Malloc_t |
a687059c | 205 | safexmalloc(x,size) |
79072805 | 206 | I32 x; |
a687059c | 207 | MEM_SIZE size; |
8d063cd8 | 208 | { |
bd4080b3 | 209 | register Malloc_t where; |
8d063cd8 | 210 | |
a687059c LW |
211 | where = safemalloc(size + ALIGN); |
212 | xcount[x]++; | |
213 | where[0] = x % 100; | |
214 | where[1] = x / 100; | |
215 | return where + ALIGN; | |
8d063cd8 | 216 | } |
8d063cd8 | 217 | |
bd4080b3 | 218 | Malloc_t |
a687059c | 219 | safexrealloc(where,size) |
bd4080b3 | 220 | Malloc_t where; |
a687059c LW |
221 | MEM_SIZE size; |
222 | { | |
bd4080b3 | 223 | register Malloc_t new = saferealloc(where - ALIGN, size + ALIGN); |
a0d0e21e | 224 | return new + ALIGN; |
a687059c LW |
225 | } |
226 | ||
227 | void | |
228 | safexfree(where) | |
bd4080b3 | 229 | Malloc_t where; |
a687059c | 230 | { |
79072805 | 231 | I32 x; |
a687059c LW |
232 | |
233 | if (!where) | |
234 | return; | |
235 | where -= ALIGN; | |
236 | x = where[0] + 100 * where[1]; | |
237 | xcount[x]--; | |
238 | safefree(where); | |
239 | } | |
240 | ||
bd4080b3 | 241 | Malloc_t |
1050c9ca | 242 | safexcalloc(x,count,size) |
243 | I32 x; | |
244 | MEM_SIZE count; | |
245 | MEM_SIZE size; | |
246 | { | |
bd4080b3 | 247 | register Malloc_t where; |
1050c9ca | 248 | |
249 | where = safexmalloc(x, size * count + ALIGN); | |
250 | xcount[x]++; | |
251 | memset((void*)where + ALIGN, 0, size * count); | |
252 | where[0] = x % 100; | |
253 | where[1] = x / 100; | |
254 | return where + ALIGN; | |
255 | } | |
256 | ||
7c0587c8 | 257 | static void |
a687059c | 258 | xstat() |
8d063cd8 | 259 | { |
79072805 | 260 | register I32 i; |
8d063cd8 | 261 | |
a687059c | 262 | for (i = 0; i < MAXXCOUNT; i++) { |
de3bb511 | 263 | if (xcount[i] > lastxcount[i]) { |
760ac839 | 264 | PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]); |
a687059c | 265 | lastxcount[i] = xcount[i]; |
8d063cd8 LW |
266 | } |
267 | } | |
8d063cd8 | 268 | } |
a687059c LW |
269 | |
270 | #endif /* LEAKTEST */ | |
8d063cd8 LW |
271 | |
272 | /* copy a string up to some (non-backslashed) delimiter, if any */ | |
273 | ||
274 | char * | |
a687059c | 275 | cpytill(to,from,fromend,delim,retlen) |
62b28dd9 LW |
276 | register char *to; |
277 | register char *from; | |
a687059c | 278 | register char *fromend; |
a0d0e21e | 279 | register int delim; |
79072805 | 280 | I32 *retlen; |
8d063cd8 | 281 | { |
a687059c LW |
282 | char *origto = to; |
283 | ||
284 | for (; from < fromend; from++,to++) { | |
378cc40b LW |
285 | if (*from == '\\') { |
286 | if (from[1] == delim) | |
287 | from++; | |
288 | else if (from[1] == '\\') | |
289 | *to++ = *from++; | |
290 | } | |
8d063cd8 LW |
291 | else if (*from == delim) |
292 | break; | |
293 | *to = *from; | |
294 | } | |
295 | *to = '\0'; | |
a687059c | 296 | *retlen = to - origto; |
8d063cd8 LW |
297 | return from; |
298 | } | |
299 | ||
300 | /* return ptr to little string in big string, NULL if not found */ | |
378cc40b | 301 | /* This routine was donated by Corey Satten. */ |
8d063cd8 LW |
302 | |
303 | char * | |
304 | instr(big, little) | |
378cc40b LW |
305 | register char *big; |
306 | register char *little; | |
307 | { | |
308 | register char *s, *x; | |
79072805 | 309 | register I32 first; |
378cc40b | 310 | |
a687059c LW |
311 | if (!little) |
312 | return big; | |
313 | first = *little++; | |
378cc40b LW |
314 | if (!first) |
315 | return big; | |
316 | while (*big) { | |
317 | if (*big++ != first) | |
318 | continue; | |
319 | for (x=big,s=little; *s; /**/ ) { | |
320 | if (!*x) | |
321 | return Nullch; | |
322 | if (*s++ != *x++) { | |
323 | s--; | |
324 | break; | |
325 | } | |
326 | } | |
327 | if (!*s) | |
328 | return big-1; | |
329 | } | |
330 | return Nullch; | |
331 | } | |
8d063cd8 | 332 | |
a687059c LW |
333 | /* same as instr but allow embedded nulls */ |
334 | ||
335 | char * | |
336 | ninstr(big, bigend, little, lend) | |
337 | register char *big; | |
338 | register char *bigend; | |
339 | char *little; | |
340 | char *lend; | |
8d063cd8 | 341 | { |
a687059c | 342 | register char *s, *x; |
79072805 | 343 | register I32 first = *little; |
a687059c | 344 | register char *littleend = lend; |
378cc40b | 345 | |
a0d0e21e | 346 | if (!first && little >= littleend) |
a687059c | 347 | return big; |
de3bb511 LW |
348 | if (bigend - big < littleend - little) |
349 | return Nullch; | |
a687059c LW |
350 | bigend -= littleend - little++; |
351 | while (big <= bigend) { | |
352 | if (*big++ != first) | |
353 | continue; | |
354 | for (x=big,s=little; s < littleend; /**/ ) { | |
355 | if (*s++ != *x++) { | |
356 | s--; | |
357 | break; | |
358 | } | |
359 | } | |
360 | if (s >= littleend) | |
361 | return big-1; | |
378cc40b | 362 | } |
a687059c LW |
363 | return Nullch; |
364 | } | |
365 | ||
366 | /* reverse of the above--find last substring */ | |
367 | ||
368 | char * | |
369 | rninstr(big, bigend, little, lend) | |
370 | register char *big; | |
371 | char *bigend; | |
372 | char *little; | |
373 | char *lend; | |
374 | { | |
375 | register char *bigbeg; | |
376 | register char *s, *x; | |
79072805 | 377 | register I32 first = *little; |
a687059c LW |
378 | register char *littleend = lend; |
379 | ||
a0d0e21e | 380 | if (!first && little >= littleend) |
a687059c LW |
381 | return bigend; |
382 | bigbeg = big; | |
383 | big = bigend - (littleend - little++); | |
384 | while (big >= bigbeg) { | |
385 | if (*big-- != first) | |
386 | continue; | |
387 | for (x=big+2,s=little; s < littleend; /**/ ) { | |
388 | if (*s++ != *x++) { | |
389 | s--; | |
390 | break; | |
391 | } | |
392 | } | |
393 | if (s >= littleend) | |
394 | return big+1; | |
378cc40b | 395 | } |
a687059c | 396 | return Nullch; |
378cc40b | 397 | } |
a687059c | 398 | |
ef7eada9 | 399 | /* Initialize the fold[] array. */ |
55497cff | 400 | void |
ef7eada9 JH |
401 | perl_init_fold() |
402 | { | |
403 | int i; | |
404 | ||
405 | for (i = 0; i < 256; i++) { | |
406 | if (isUPPER(i)) fold[i] = toLOWER(i); | |
407 | else if (isLOWER(i)) fold[i] = toUPPER(i); | |
408 | else fold[i] = i; | |
409 | } | |
410 | } | |
411 | ||
f0c5b223 TB |
412 | /* Initialize locale (and the fold[] array).*/ |
413 | int | |
1050c9ca | 414 | perl_init_i18nl10n(printwarn) |
f0c5b223 TB |
415 | int printwarn; |
416 | { | |
417 | int ok = 1; | |
418 | /* returns | |
419 | * 1 = set ok or not applicable, | |
420 | * 0 = fallback to C locale, | |
421 | * -1 = fallback to C locale failed | |
422 | */ | |
ef7eada9 | 423 | #if defined(HAS_SETLOCALE) |
f0c5b223 TB |
424 | char * lc_all = getenv("LC_ALL"); |
425 | char * lc_ctype = getenv("LC_CTYPE"); | |
ef7eada9 JH |
426 | char * lc_collate = getenv("LC_COLLATE"); |
427 | char * lang = getenv("LANG"); | |
428 | int setlocale_failure = 0; | |
429 | ||
430 | #define SETLOCALE_LC_CTYPE 0x01 | |
431 | #define SETLOCALE_LC_COLLATE 0x02 | |
432 | ||
433 | #ifdef LC_CTYPE | |
434 | if (setlocale(LC_CTYPE, "") == 0) | |
435 | setlocale_failure |= SETLOCALE_LC_CTYPE; | |
436 | #endif | |
f0c5b223 | 437 | |
ef7eada9 JH |
438 | #ifdef LC_COLLATE |
439 | if (setlocale(LC_COLLATE, "") == 0) | |
440 | setlocale_failure |= SETLOCALE_LC_COLLATE; | |
441 | else | |
442 | lc_collate_active = 1; | |
443 | #endif | |
444 | ||
445 | if (setlocale_failure && (lc_all || lang)) { | |
446 | char *perl_badlang; | |
20cec16a | 447 | |
448 | if (printwarn > 1 || | |
ef7eada9 JH |
449 | printwarn && |
450 | (!(perl_badlang = getenv("PERL_BADLANG")) || atoi(perl_badlang))) { | |
451 | ||
452 | PerlIO_printf(PerlIO_stderr(), | |
453 | "perl: warning: Setting locale failed for the categories:\n\t"); | |
454 | #ifdef LC_CTYPE | |
455 | if (setlocale_failure & SETLOCALE_LC_CTYPE) | |
456 | PerlIO_printf(PerlIO_stderr(), | |
457 | "LC_CTYPE "); | |
458 | #endif | |
459 | #ifdef LC_COLLATE | |
460 | if (setlocale_failure & SETLOCALE_LC_COLLATE) | |
760ac839 | 461 | PerlIO_printf(PerlIO_stderr(), |
ef7eada9 JH |
462 | "LC_COLLATE "); |
463 | #endif | |
464 | PerlIO_printf(PerlIO_stderr(), | |
465 | "\n"); | |
466 | ||
467 | PerlIO_printf(PerlIO_stderr(), | |
468 | "perl: warning: Please check that your locale settings:\n"); | |
469 | ||
470 | PerlIO_printf(PerlIO_stderr(), | |
471 | "\tLC_ALL = %c%s%c,\n", | |
472 | lc_all ? '"' : '(', | |
473 | lc_all ? lc_all : "unset", | |
474 | lc_all ? '"' : ')' | |
f0c5b223 | 475 | ); |
ef7eada9 JH |
476 | #ifdef LC_CTYPE |
477 | if (setlocale_failure & SETLOCALE_LC_CTYPE) | |
478 | PerlIO_printf(PerlIO_stderr(), | |
479 | "\tLC_CTYPE = %c%s%c,\n", | |
480 | lc_ctype ? '"' : '(', | |
481 | lc_ctype ? lc_ctype : "unset", | |
482 | lc_ctype ? '"' : ')' | |
483 | ); | |
484 | #endif | |
485 | #ifdef LC_COLLATE | |
486 | if (setlocale_failure & SETLOCALE_LC_COLLATE) | |
487 | PerlIO_printf(PerlIO_stderr(), | |
488 | "\tLC_COLLATE = %c%s%c,\n", | |
489 | lc_collate ? '"' : '(', | |
490 | lc_collate ? lc_collate : "unset", | |
491 | lc_collate ? '"' : ')' | |
492 | ); | |
493 | #endif | |
494 | PerlIO_printf(PerlIO_stderr(), | |
495 | "\tLANG = %c%s%c\n", | |
496 | lang ? '"' : ')', | |
497 | lang ? lang : "unset", | |
498 | lang ? '"' : ')' | |
499 | ); | |
500 | ||
501 | PerlIO_printf(PerlIO_stderr(), | |
502 | " are supported and installed on your system.\n"); | |
503 | ||
f0c5b223 | 504 | ok = 0; |
ef7eada9 JH |
505 | |
506 | } | |
507 | #ifdef LC_ALL | |
508 | if (setlocale_failure) { | |
509 | PerlIO_printf(PerlIO_stderr(), | |
510 | "perl: warning: Falling back to the \"C\" locale.\n"); | |
511 | if (setlocale(LC_ALL, "C") == NULL) { | |
f0c5b223 | 512 | ok = -1; |
ef7eada9 JH |
513 | PerlIO_printf(PerlIO_stderr(), |
514 | "perl: warning: Failed to fall back to the \"C\" locale.\n"); | |
f0c5b223 | 515 | } |
f0c5b223 | 516 | } |
ef7eada9 JH |
517 | #else |
518 | PerlIO_printf(PerlIO_stderr(), | |
519 | "perl: warning: Cannot fall back to the \"C\" locale.\n"); | |
f0c5b223 | 520 | #endif |
ef7eada9 JH |
521 | } |
522 | ||
523 | if (setlocale_failure & SETLOCALE_LC_CTYPE == 0) | |
524 | perl_init_fold(); | |
525 | ||
526 | #endif /* #if defined(HAS_SETLOCALE) */ | |
527 | ||
f0c5b223 TB |
528 | return ok; |
529 | } | |
530 | ||
ef7eada9 JH |
531 | char * |
532 | mem_collxfrm(m, n, nx) /* mem_collxfrm() does strxfrm() for (data,size) */ | |
533 | const char *m; /* "strings", that is, transforms normal eight-bit */ | |
534 | const Size_t n; /* data into a format that can be memcmp()ed to get */ | |
535 | Size_t * nx; /* 'the right' result for each locale. */ | |
536 | { /* Uses strxfrm() but handles embedded NULs. */ | |
537 | char * mx = 0; | |
538 | ||
539 | #ifdef HAS_STRXFRM | |
540 | Size_t ma; | |
541 | ||
542 | /* the expansion factor of 16 has been seen with strxfrm() */ | |
543 | ma = (lc_collate_active ? 16 : 1) * n + 1; | |
544 | ||
545 | #define RENEW_mx() \ | |
546 | do { \ | |
547 | ma = 2 * ma + 1; \ | |
548 | Renew(mx, ma, char); \ | |
549 | if (mx == 0) \ | |
550 | goto out; \ | |
551 | } while (0) | |
552 | ||
553 | New(171, mx, ma, char); | |
554 | ||
555 | if (mx) { | |
556 | Size_t xc, dx; | |
557 | int xok; | |
558 | ||
559 | for (*nx = 0, xc = 0; xc < n; ) { | |
560 | if (m[xc] == 0) | |
561 | do { | |
562 | if (*nx == ma) | |
563 | RENEW_mx(); | |
564 | mx[*nx++] = m[xc++]; | |
565 | } while (xc < n && m[xc] == 0); | |
566 | else { | |
567 | do { | |
568 | dx = strxfrm(mx + *nx, m + xc, ma - *nx); | |
569 | if (dx + *nx > ma) { | |
570 | RENEW_mx(); | |
571 | xok = 0; | |
572 | } else | |
573 | xok = 1; | |
574 | } while (!xok); | |
575 | xc += strlen(mx + *nx); | |
576 | *nx += dx; | |
577 | } | |
578 | } | |
579 | } | |
580 | ||
581 | out: | |
582 | ||
583 | #endif /* HAS_STRXFRM */ | |
584 | ||
585 | return mx; | |
586 | } | |
587 | ||
378cc40b | 588 | void |
79072805 LW |
589 | fbm_compile(sv, iflag) |
590 | SV *sv; | |
591 | I32 iflag; | |
378cc40b | 592 | { |
a687059c LW |
593 | register unsigned char *s; |
594 | register unsigned char *table; | |
79072805 LW |
595 | register U32 i; |
596 | register U32 len = SvCUR(sv); | |
597 | I32 rarest = 0; | |
598 | U32 frequency = 256; | |
599 | ||
748a9306 LW |
600 | if (len > 255) |
601 | return; /* can't have offsets that big */ | |
79072805 | 602 | Sv_Grow(sv,len+258); |
463ee0b2 | 603 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
a687059c LW |
604 | s = table - 2; |
605 | for (i = 0; i < 256; i++) { | |
378cc40b LW |
606 | table[i] = len; |
607 | } | |
608 | i = 0; | |
463ee0b2 | 609 | while (s >= (unsigned char*)(SvPVX(sv))) |
a687059c LW |
610 | { |
611 | if (table[*s] == len) { | |
612 | #ifndef pdp11 | |
613 | if (iflag) | |
614 | table[*s] = table[fold[*s]] = i; | |
615 | #else | |
616 | if (iflag) { | |
79072805 | 617 | I32 j; |
a687059c LW |
618 | j = fold[*s]; |
619 | table[j] = i; | |
620 | table[*s] = i; | |
621 | } | |
622 | #endif /* pdp11 */ | |
623 | else | |
624 | table[*s] = i; | |
625 | } | |
378cc40b LW |
626 | s--,i++; |
627 | } | |
79072805 | 628 | sv_upgrade(sv, SVt_PVBM); |
a0d0e21e | 629 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 | 630 | SvVALID_on(sv); |
378cc40b | 631 | |
463ee0b2 | 632 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
a687059c | 633 | if (iflag) { |
79072805 LW |
634 | register U32 tmp, foldtmp; |
635 | SvCASEFOLD_on(sv); | |
a687059c LW |
636 | for (i = 0; i < len; i++) { |
637 | tmp=freq[s[i]]; | |
638 | foldtmp=freq[fold[s[i]]]; | |
639 | if (tmp < frequency && foldtmp < frequency) { | |
640 | rarest = i; | |
641 | /* choose most frequent among the two */ | |
642 | frequency = (tmp > foldtmp) ? tmp : foldtmp; | |
643 | } | |
644 | } | |
645 | } | |
646 | else { | |
647 | for (i = 0; i < len; i++) { | |
648 | if (freq[s[i]] < frequency) { | |
649 | rarest = i; | |
650 | frequency = freq[s[i]]; | |
651 | } | |
378cc40b LW |
652 | } |
653 | } | |
79072805 LW |
654 | BmRARE(sv) = s[rarest]; |
655 | BmPREVIOUS(sv) = rarest; | |
760ac839 | 656 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b LW |
657 | } |
658 | ||
378cc40b | 659 | char * |
79072805 | 660 | fbm_instr(big, bigend, littlestr) |
a687059c LW |
661 | unsigned char *big; |
662 | register unsigned char *bigend; | |
79072805 | 663 | SV *littlestr; |
378cc40b | 664 | { |
a687059c | 665 | register unsigned char *s; |
79072805 LW |
666 | register I32 tmp; |
667 | register I32 littlelen; | |
a687059c LW |
668 | register unsigned char *little; |
669 | register unsigned char *table; | |
670 | register unsigned char *olds; | |
671 | register unsigned char *oldlittle; | |
378cc40b | 672 | |
79072805 | 673 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e LW |
674 | STRLEN len; |
675 | char *l = SvPV(littlestr,len); | |
676 | if (!len) | |
d48672a2 | 677 | return (char*)big; |
a0d0e21e | 678 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 | 679 | } |
378cc40b | 680 | |
79072805 LW |
681 | littlelen = SvCUR(littlestr); |
682 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ | |
0f85fab0 LW |
683 | if (littlelen > bigend - big) |
684 | return Nullch; | |
463ee0b2 | 685 | little = (unsigned char*)SvPVX(littlestr); |
79072805 | 686 | if (SvCASEFOLD(littlestr)) { /* oops, fake it */ |
a687059c LW |
687 | big = bigend - littlelen; /* just start near end */ |
688 | if (bigend[-1] == '\n' && little[littlelen-1] != '\n') | |
689 | big--; | |
378cc40b LW |
690 | } |
691 | else { | |
a687059c | 692 | s = bigend - littlelen; |
bd4080b3 | 693 | if (*s == *little && memcmp((char*)s,(char*)little,littlelen)==0) |
a687059c | 694 | return (char*)s; /* how sweet it is */ |
34de22dd LW |
695 | else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' |
696 | && s > big) { | |
a687059c | 697 | s--; |
bd4080b3 | 698 | if (*s == *little && memcmp((char*)s,(char*)little,littlelen)==0) |
a687059c LW |
699 | return (char*)s; |
700 | } | |
701 | return Nullch; | |
702 | } | |
703 | } | |
463ee0b2 | 704 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 LW |
705 | if (--littlelen >= bigend - big) |
706 | return Nullch; | |
707 | s = big + littlelen; | |
a687059c | 708 | oldlittle = little = table - 2; |
79072805 | 709 | if (SvCASEFOLD(littlestr)) { /* case insensitive? */ |
20188a90 | 710 | if (s < bigend) { |
a687059c | 711 | top1: |
de3bb511 | 712 | /*SUPPRESS 560*/ |
a687059c | 713 | if (tmp = table[*s]) { |
62b28dd9 LW |
714 | #ifdef POINTERRIGOR |
715 | if (bigend - s > tmp) { | |
716 | s += tmp; | |
717 | goto top1; | |
718 | } | |
719 | #else | |
720 | if ((s += tmp) < bigend) | |
721 | goto top1; | |
722 | #endif | |
723 | return Nullch; | |
a687059c LW |
724 | } |
725 | else { | |
726 | tmp = littlelen; /* less expensive than calling strncmp() */ | |
727 | olds = s; | |
728 | while (tmp--) { | |
729 | if (*--s == *--little || fold[*s] == *little) | |
730 | continue; | |
731 | s = olds + 1; /* here we pay the price for failure */ | |
732 | little = oldlittle; | |
733 | if (s < bigend) /* fake up continue to outer loop */ | |
734 | goto top1; | |
735 | return Nullch; | |
736 | } | |
a687059c | 737 | return (char *)s; |
a687059c LW |
738 | } |
739 | } | |
740 | } | |
741 | else { | |
20188a90 | 742 | if (s < bigend) { |
a687059c | 743 | top2: |
de3bb511 | 744 | /*SUPPRESS 560*/ |
a687059c | 745 | if (tmp = table[*s]) { |
62b28dd9 LW |
746 | #ifdef POINTERRIGOR |
747 | if (bigend - s > tmp) { | |
748 | s += tmp; | |
749 | goto top2; | |
750 | } | |
751 | #else | |
752 | if ((s += tmp) < bigend) | |
753 | goto top2; | |
754 | #endif | |
755 | return Nullch; | |
a687059c LW |
756 | } |
757 | else { | |
758 | tmp = littlelen; /* less expensive than calling strncmp() */ | |
759 | olds = s; | |
760 | while (tmp--) { | |
761 | if (*--s == *--little) | |
762 | continue; | |
763 | s = olds + 1; /* here we pay the price for failure */ | |
764 | little = oldlittle; | |
765 | if (s < bigend) /* fake up continue to outer loop */ | |
766 | goto top2; | |
767 | return Nullch; | |
768 | } | |
a687059c | 769 | return (char *)s; |
378cc40b | 770 | } |
378cc40b LW |
771 | } |
772 | } | |
773 | return Nullch; | |
774 | } | |
775 | ||
776 | char * | |
777 | screaminstr(bigstr, littlestr) | |
79072805 LW |
778 | SV *bigstr; |
779 | SV *littlestr; | |
378cc40b | 780 | { |
a687059c LW |
781 | register unsigned char *s, *x; |
782 | register unsigned char *big; | |
79072805 LW |
783 | register I32 pos; |
784 | register I32 previous; | |
785 | register I32 first; | |
a687059c LW |
786 | register unsigned char *little; |
787 | register unsigned char *bigend; | |
788 | register unsigned char *littleend; | |
378cc40b | 789 | |
79072805 | 790 | if ((pos = screamfirst[BmRARE(littlestr)]) < 0) |
378cc40b | 791 | return Nullch; |
463ee0b2 | 792 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 | 793 | littleend = little + SvCUR(littlestr); |
378cc40b | 794 | first = *little++; |
79072805 | 795 | previous = BmPREVIOUS(littlestr); |
463ee0b2 | 796 | big = (unsigned char *)(SvPVX(bigstr)); |
79072805 | 797 | bigend = big + SvCUR(bigstr); |
378cc40b LW |
798 | while (pos < previous) { |
799 | if (!(pos += screamnext[pos])) | |
800 | return Nullch; | |
801 | } | |
de3bb511 | 802 | #ifdef POINTERRIGOR |
79072805 | 803 | if (SvCASEFOLD(littlestr)) { /* case insignificant? */ |
a687059c | 804 | do { |
988174c1 LW |
805 | if (big[pos-previous] != first && big[pos-previous] != fold[first]) |
806 | continue; | |
de3bb511 LW |
807 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
808 | if (x >= bigend) | |
809 | return Nullch; | |
810 | if (*s++ != *x++ && fold[*(s-1)] != *(x-1)) { | |
811 | s--; | |
812 | break; | |
813 | } | |
814 | } | |
815 | if (s == littleend) | |
de3bb511 | 816 | return (char *)(big+pos-previous); |
de3bb511 | 817 | } while ( |
de3bb511 | 818 | pos += screamnext[pos] /* does this goof up anywhere? */ |
de3bb511 LW |
819 | ); |
820 | } | |
821 | else { | |
822 | do { | |
988174c1 LW |
823 | if (big[pos-previous] != first) |
824 | continue; | |
de3bb511 LW |
825 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
826 | if (x >= bigend) | |
827 | return Nullch; | |
828 | if (*s++ != *x++) { | |
829 | s--; | |
830 | break; | |
831 | } | |
832 | } | |
833 | if (s == littleend) | |
de3bb511 | 834 | return (char *)(big+pos-previous); |
79072805 | 835 | } while ( pos += screamnext[pos] ); |
de3bb511 LW |
836 | } |
837 | #else /* !POINTERRIGOR */ | |
838 | big -= previous; | |
79072805 | 839 | if (SvCASEFOLD(littlestr)) { /* case insignificant? */ |
de3bb511 | 840 | do { |
988174c1 LW |
841 | if (big[pos] != first && big[pos] != fold[first]) |
842 | continue; | |
a687059c LW |
843 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
844 | if (x >= bigend) | |
845 | return Nullch; | |
846 | if (*s++ != *x++ && fold[*(s-1)] != *(x-1)) { | |
847 | s--; | |
848 | break; | |
849 | } | |
850 | } | |
851 | if (s == littleend) | |
a687059c | 852 | return (char *)(big+pos); |
a687059c | 853 | } while ( |
a687059c | 854 | pos += screamnext[pos] /* does this goof up anywhere? */ |
a687059c LW |
855 | ); |
856 | } | |
857 | else { | |
858 | do { | |
988174c1 LW |
859 | if (big[pos] != first) |
860 | continue; | |
a687059c LW |
861 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
862 | if (x >= bigend) | |
863 | return Nullch; | |
864 | if (*s++ != *x++) { | |
865 | s--; | |
866 | break; | |
867 | } | |
378cc40b | 868 | } |
a687059c | 869 | if (s == littleend) |
a687059c | 870 | return (char *)(big+pos); |
a687059c | 871 | } while ( |
a687059c | 872 | pos += screamnext[pos] |
a687059c LW |
873 | ); |
874 | } | |
de3bb511 | 875 | #endif /* POINTERRIGOR */ |
8d063cd8 LW |
876 | return Nullch; |
877 | } | |
878 | ||
79072805 LW |
879 | I32 |
880 | ibcmp(a,b,len) | |
a0d0e21e LW |
881 | register U8 *a; |
882 | register U8 *b; | |
79072805 LW |
883 | register I32 len; |
884 | { | |
885 | while (len--) { | |
886 | if (*a == *b) { | |
887 | a++,b++; | |
888 | continue; | |
889 | } | |
890 | if (fold[*a++] == *b++) | |
891 | continue; | |
892 | return 1; | |
893 | } | |
894 | return 0; | |
895 | } | |
896 | ||
8d063cd8 LW |
897 | /* copy a string to a safe spot */ |
898 | ||
899 | char * | |
a0d0e21e | 900 | savepv(sv) |
79072805 | 901 | char *sv; |
8d063cd8 | 902 | { |
a687059c | 903 | register char *newaddr; |
8d063cd8 | 904 | |
79072805 LW |
905 | New(902,newaddr,strlen(sv)+1,char); |
906 | (void)strcpy(newaddr,sv); | |
8d063cd8 LW |
907 | return newaddr; |
908 | } | |
909 | ||
a687059c LW |
910 | /* same thing but with a known length */ |
911 | ||
912 | char * | |
a0d0e21e | 913 | savepvn(sv, len) |
79072805 LW |
914 | char *sv; |
915 | register I32 len; | |
a687059c LW |
916 | { |
917 | register char *newaddr; | |
918 | ||
919 | New(903,newaddr,len+1,char); | |
79072805 | 920 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c LW |
921 | newaddr[len] = '\0'; /* is now */ |
922 | return newaddr; | |
923 | } | |
924 | ||
a0d0e21e | 925 | #if !defined(I_STDARG) && !defined(I_VARARGS) |
8d063cd8 | 926 | |
8990e307 LW |
927 | /* |
928 | * Fallback on the old hackers way of doing varargs | |
929 | */ | |
8d063cd8 | 930 | |
378cc40b | 931 | /*VARARGS1*/ |
7c0587c8 | 932 | char * |
378cc40b LW |
933 | mess(pat,a1,a2,a3,a4) |
934 | char *pat; | |
a687059c | 935 | long a1, a2, a3, a4; |
378cc40b LW |
936 | { |
937 | char *s; | |
f0c5b223 | 938 | char *s_start; |
79072805 LW |
939 | I32 usermess = strEQ(pat,"%s"); |
940 | SV *tmpstr; | |
378cc40b | 941 | |
f0c5b223 | 942 | s = s_start = buf; |
de3bb511 | 943 | if (usermess) { |
8990e307 | 944 | tmpstr = sv_newmortal(); |
79072805 | 945 | sv_setpv(tmpstr, (char*)a1); |
463ee0b2 | 946 | *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1]; |
de3bb511 LW |
947 | } |
948 | else { | |
949 | (void)sprintf(s,pat,a1,a2,a3,a4); | |
950 | s += strlen(s); | |
951 | } | |
952 | ||
378cc40b | 953 | if (s[-1] != '\n') { |
2304df62 AD |
954 | if (dirty) |
955 | strcpy(s, " during global destruction.\n"); | |
956 | else { | |
957 | if (curcop->cop_line) { | |
958 | (void)sprintf(s," at %s line %ld", | |
959 | SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line); | |
960 | s += strlen(s); | |
961 | } | |
a0d0e21e LW |
962 | if (GvIO(last_in_gv) && |
963 | IoLINES(GvIOp(last_in_gv)) ) { | |
2304df62 AD |
964 | (void)sprintf(s,", <%s> %s %ld", |
965 | last_in_gv == argvgv ? "" : GvENAME(last_in_gv), | |
966 | strEQ(rs,"\n") ? "line" : "chunk", | |
a0d0e21e | 967 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 AD |
968 | s += strlen(s); |
969 | } | |
970 | (void)strcpy(s,".\n"); | |
f0c5b223 | 971 | s += 2; |
378cc40b | 972 | } |
de3bb511 | 973 | if (usermess) |
79072805 | 974 | sv_catpv(tmpstr,buf+1); |
378cc40b | 975 | } |
f0c5b223 TB |
976 | |
977 | if (s - s_start >= sizeof(buf)) { /* Ooops! */ | |
978 | if (usermess) | |
760ac839 | 979 | PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr)); |
f0c5b223 | 980 | else |
760ac839 LW |
981 | PerlIO_puts(PerlIO_stderr(), buf); |
982 | PerlIO_puts(PerlIO_stderr(),"panic: message overflow - memory corrupted!\n"); | |
f0c5b223 TB |
983 | my_exit(1); |
984 | } | |
de3bb511 | 985 | if (usermess) |
463ee0b2 | 986 | return SvPVX(tmpstr); |
de3bb511 LW |
987 | else |
988 | return buf; | |
378cc40b LW |
989 | } |
990 | ||
8d063cd8 | 991 | /*VARARGS1*/ |
463ee0b2 | 992 | void croak(pat,a1,a2,a3,a4) |
8d063cd8 | 993 | char *pat; |
a687059c | 994 | long a1, a2, a3, a4; |
8d063cd8 | 995 | { |
9f68db38 | 996 | char *tmps; |
de3bb511 | 997 | char *message; |
748a9306 LW |
998 | HV *stash; |
999 | GV *gv; | |
1000 | CV *cv; | |
8d063cd8 | 1001 | |
de3bb511 | 1002 | message = mess(pat,a1,a2,a3,a4); |
20cec16a | 1003 | if (diehook) { |
1004 | SV *olddiehook = diehook; | |
1005 | diehook = Nullsv; /* sv_2cv might call croak() */ | |
1006 | cv = sv_2cv(olddiehook, &stash, &gv, 0); | |
1007 | diehook = olddiehook; | |
1008 | if (cv && !CvDEPTH(cv)) { | |
1009 | dSP; | |
1010 | ||
1011 | PUSHMARK(sp); | |
1012 | EXTEND(sp, 1); | |
1013 | PUSHs(sv_2mortal(newSVpv(message,0))); | |
1014 | PUTBACK; | |
1015 | perl_call_sv((SV*)cv, G_DISCARD); | |
1016 | } | |
748a9306 | 1017 | } |
a0d0e21e LW |
1018 | if (in_eval) { |
1019 | restartop = die_where(message); | |
a5f75d66 | 1020 | Siglongjmp(top_env, 3); |
a0d0e21e | 1021 | } |
760ac839 LW |
1022 | PerlIO_puts(PerlIO_stderr(),message); |
1023 | (void)PerlIO_flush(PerlIO_stderr()); | |
38cd9116 | 1024 | if (e_tmpname) { |
1025 | if (e_fp) { | |
760ac839 | 1026 | PerlIO_close(e_fp); |
38cd9116 | 1027 | e_fp = Nullfp; |
1028 | } | |
a687059c | 1029 | (void)UNLINK(e_tmpname); |
38cd9116 | 1030 | Safefree(e_tmpname); |
1031 | e_tmpname = Nullch; | |
f0c5b223 | 1032 | } |
748a9306 LW |
1033 | statusvalue = SHIFTSTATUS(statusvalue); |
1034 | #ifdef VMS | |
1035 | my_exit((U32)vaxc$errno?vaxc$errno:errno?errno:statusvalue?statusvalue:SS$_ABORT); | |
1036 | #else | |
1037 | my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); | |
1038 | #endif | |
378cc40b LW |
1039 | } |
1040 | ||
1041 | /*VARARGS1*/ | |
7c0587c8 | 1042 | void warn(pat,a1,a2,a3,a4) |
378cc40b | 1043 | char *pat; |
a687059c | 1044 | long a1, a2, a3, a4; |
378cc40b | 1045 | { |
de3bb511 | 1046 | char *message; |
748a9306 LW |
1047 | SV *sv; |
1048 | HV *stash; | |
1049 | GV *gv; | |
1050 | CV *cv; | |
de3bb511 LW |
1051 | |
1052 | message = mess(pat,a1,a2,a3,a4); | |
20cec16a | 1053 | if (warnhook) { |
1054 | SV *oldwarnhook = warnhook; | |
1055 | warnhook = Nullsv; /* sv_2cv might end up calling warn() */ | |
1056 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); | |
1057 | warnhook = oldwarnhook; | |
1058 | if (cv && !CvDEPTH(cv)) { | |
1059 | dSP; | |
1060 | ||
1061 | PUSHMARK(sp); | |
1062 | EXTEND(sp, 1); | |
1063 | PUSHs(sv_2mortal(newSVpv(message,0))); | |
1064 | PUTBACK; | |
1065 | perl_call_sv((SV*)cv, G_DISCARD); | |
1066 | return; | |
1067 | } | |
748a9306 | 1068 | } |
20cec16a | 1069 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c | 1070 | #ifdef LEAKTEST |
20cec16a | 1071 | DEBUG_L(xstat()); |
a687059c | 1072 | #endif |
20cec16a | 1073 | (void)PerlIO_flush(PerlIO_stderr()); |
8d063cd8 | 1074 | } |
8990e307 | 1075 | |
a0d0e21e | 1076 | #else /* !defined(I_STDARG) && !defined(I_VARARGS) */ |
8990e307 | 1077 | |
a0d0e21e | 1078 | #ifdef I_STDARG |
8990e307 | 1079 | char * |
2304df62 | 1080 | mess(char *pat, va_list *args) |
a687059c LW |
1081 | #else |
1082 | /*VARARGS0*/ | |
de3bb511 | 1083 | char * |
8990e307 | 1084 | mess(pat, args) |
a687059c | 1085 | char *pat; |
2304df62 | 1086 | va_list *args; |
8990e307 LW |
1087 | #endif |
1088 | { | |
a687059c | 1089 | char *s; |
f0c5b223 | 1090 | char *s_start; |
79072805 LW |
1091 | SV *tmpstr; |
1092 | I32 usermess; | |
d48672a2 | 1093 | #ifndef HAS_VPRINTF |
85e6fe83 | 1094 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1095 | char *vsprintf(); |
1096 | #else | |
79072805 | 1097 | I32 vsprintf(); |
a687059c | 1098 | #endif |
d48672a2 | 1099 | #endif |
a687059c | 1100 | |
f0c5b223 | 1101 | s = s_start = buf; |
de3bb511 LW |
1102 | usermess = strEQ(pat, "%s"); |
1103 | if (usermess) { | |
8990e307 | 1104 | tmpstr = sv_newmortal(); |
2304df62 | 1105 | sv_setpv(tmpstr, va_arg(*args, char *)); |
463ee0b2 | 1106 | *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1]; |
de3bb511 LW |
1107 | } |
1108 | else { | |
2304df62 | 1109 | (void) vsprintf(s,pat,*args); |
de3bb511 LW |
1110 | s += strlen(s); |
1111 | } | |
2304df62 | 1112 | va_end(*args); |
a687059c | 1113 | |
a687059c | 1114 | if (s[-1] != '\n') { |
2304df62 AD |
1115 | if (dirty) |
1116 | strcpy(s, " during global destruction.\n"); | |
1117 | else { | |
1118 | if (curcop->cop_line) { | |
1119 | (void)sprintf(s," at %s line %ld", | |
1120 | SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line); | |
1121 | s += strlen(s); | |
1122 | } | |
c07a80fd | 1123 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
1124 | bool line_mode = (RsSIMPLE(rs) && | |
1125 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); | |
2304df62 AD |
1126 | (void)sprintf(s,", <%s> %s %ld", |
1127 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), | |
c07a80fd | 1128 | line_mode ? "line" : "chunk", |
a0d0e21e | 1129 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 AD |
1130 | s += strlen(s); |
1131 | } | |
1132 | (void)strcpy(s,".\n"); | |
f0c5b223 | 1133 | s += 2; |
a687059c | 1134 | } |
de3bb511 | 1135 | if (usermess) |
79072805 | 1136 | sv_catpv(tmpstr,buf+1); |
a687059c | 1137 | } |
de3bb511 | 1138 | |
f0c5b223 TB |
1139 | if (s - s_start >= sizeof(buf)) { /* Ooops! */ |
1140 | if (usermess) | |
760ac839 | 1141 | PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr)); |
f0c5b223 | 1142 | else |
760ac839 LW |
1143 | PerlIO_puts(PerlIO_stderr(), buf); |
1144 | PerlIO_puts(PerlIO_stderr(), "panic: message overflow - memory corrupted!\n"); | |
f0c5b223 TB |
1145 | my_exit(1); |
1146 | } | |
de3bb511 | 1147 | if (usermess) |
463ee0b2 | 1148 | return SvPVX(tmpstr); |
de3bb511 LW |
1149 | else |
1150 | return buf; | |
a687059c LW |
1151 | } |
1152 | ||
ecfc5424 | 1153 | #ifdef I_STDARG |
79072805 | 1154 | void |
8990e307 | 1155 | croak(char* pat, ...) |
463ee0b2 | 1156 | #else |
8990e307 LW |
1157 | /*VARARGS0*/ |
1158 | void | |
1159 | croak(pat, va_alist) | |
1160 | char *pat; | |
1161 | va_dcl | |
463ee0b2 | 1162 | #endif |
a687059c LW |
1163 | { |
1164 | va_list args; | |
de3bb511 | 1165 | char *message; |
748a9306 LW |
1166 | HV *stash; |
1167 | GV *gv; | |
1168 | CV *cv; | |
a687059c | 1169 | |
a0d0e21e | 1170 | #ifdef I_STDARG |
8990e307 LW |
1171 | va_start(args, pat); |
1172 | #else | |
a687059c | 1173 | va_start(args); |
8990e307 | 1174 | #endif |
2304df62 | 1175 | message = mess(pat, &args); |
a687059c | 1176 | va_end(args); |
20cec16a | 1177 | if (diehook) { |
1178 | SV *olddiehook = diehook; | |
1179 | diehook = Nullsv; /* sv_2cv might call croak() */ | |
1180 | cv = sv_2cv(olddiehook, &stash, &gv, 0); | |
1181 | diehook = olddiehook; | |
1182 | if (cv && !CvDEPTH(cv)) { | |
1183 | dSP; | |
1184 | ||
1185 | PUSHMARK(sp); | |
1186 | EXTEND(sp, 1); | |
1187 | PUSHs(sv_2mortal(newSVpv(message,0))); | |
1188 | PUTBACK; | |
1189 | perl_call_sv((SV*)cv, G_DISCARD); | |
1190 | } | |
748a9306 | 1191 | } |
a0d0e21e LW |
1192 | if (in_eval) { |
1193 | restartop = die_where(message); | |
a5f75d66 | 1194 | Siglongjmp(top_env, 3); |
a0d0e21e | 1195 | } |
760ac839 LW |
1196 | PerlIO_puts(PerlIO_stderr(),message); |
1197 | (void)PerlIO_flush(PerlIO_stderr()); | |
38cd9116 | 1198 | if (e_tmpname) { |
1199 | if (e_fp) { | |
760ac839 | 1200 | PerlIO_close(e_fp); |
38cd9116 | 1201 | e_fp = Nullfp; |
1202 | } | |
a687059c | 1203 | (void)UNLINK(e_tmpname); |
38cd9116 | 1204 | Safefree(e_tmpname); |
1205 | e_tmpname = Nullch; | |
f0c5b223 | 1206 | } |
748a9306 LW |
1207 | statusvalue = SHIFTSTATUS(statusvalue); |
1208 | #ifdef VMS | |
1209 | my_exit((U32)(vaxc$errno?vaxc$errno:(statusvalue?statusvalue:44))); | |
1210 | #else | |
1211 | my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); | |
1212 | #endif | |
a687059c LW |
1213 | } |
1214 | ||
8990e307 | 1215 | void |
ecfc5424 | 1216 | #ifdef I_STDARG |
8990e307 | 1217 | warn(char* pat,...) |
463ee0b2 | 1218 | #else |
8990e307 LW |
1219 | /*VARARGS0*/ |
1220 | warn(pat,va_alist) | |
1221 | char *pat; | |
1222 | va_dcl | |
463ee0b2 | 1223 | #endif |
a687059c LW |
1224 | { |
1225 | va_list args; | |
de3bb511 | 1226 | char *message; |
748a9306 LW |
1227 | HV *stash; |
1228 | GV *gv; | |
1229 | CV *cv; | |
a687059c | 1230 | |
a0d0e21e | 1231 | #ifdef I_STDARG |
8990e307 LW |
1232 | va_start(args, pat); |
1233 | #else | |
a687059c | 1234 | va_start(args); |
8990e307 | 1235 | #endif |
2304df62 | 1236 | message = mess(pat, &args); |
a687059c LW |
1237 | va_end(args); |
1238 | ||
20cec16a | 1239 | if (warnhook) { |
1240 | SV *oldwarnhook = warnhook; | |
1241 | warnhook = Nullsv; /* sv_2cv might end up calling warn() */ | |
1242 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); | |
1243 | warnhook = oldwarnhook; | |
1244 | if (cv && !CvDEPTH(cv)) { | |
1245 | dSP; | |
1246 | ||
1247 | PUSHMARK(sp); | |
1248 | EXTEND(sp, 1); | |
1249 | PUSHs(sv_2mortal(newSVpv(message,0))); | |
1250 | PUTBACK; | |
1251 | perl_call_sv((SV*)cv, G_DISCARD); | |
1252 | return; | |
1253 | } | |
748a9306 | 1254 | } |
20cec16a | 1255 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c | 1256 | #ifdef LEAKTEST |
20cec16a | 1257 | DEBUG_L(xstat()); |
a687059c | 1258 | #endif |
20cec16a | 1259 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c | 1260 | } |
a0d0e21e | 1261 | #endif /* !defined(I_STDARG) && !defined(I_VARARGS) */ |
8d063cd8 | 1262 | |
a0d0e21e | 1263 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
8d063cd8 | 1264 | void |
7c0587c8 | 1265 | my_setenv(nam,val) |
8d063cd8 LW |
1266 | char *nam, *val; |
1267 | { | |
79072805 | 1268 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 | 1269 | |
fe14fcc3 | 1270 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 LW |
1271 | I32 j; |
1272 | I32 max; | |
fe14fcc3 LW |
1273 | char **tmpenv; |
1274 | ||
de3bb511 | 1275 | /*SUPPRESS 530*/ |
fe14fcc3 LW |
1276 | for (max = i; environ[max]; max++) ; |
1277 | New(901,tmpenv, max+2, char*); | |
1278 | for (j=0; j<max; j++) /* copy environment */ | |
a0d0e21e | 1279 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 LW |
1280 | tmpenv[max] = Nullch; |
1281 | environ = tmpenv; /* tell exec where it is now */ | |
1282 | } | |
a687059c LW |
1283 | if (!val) { |
1284 | while (environ[i]) { | |
1285 | environ[i] = environ[i+1]; | |
1286 | i++; | |
1287 | } | |
1288 | return; | |
1289 | } | |
8d063cd8 | 1290 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 | 1291 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 LW |
1292 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1293 | } | |
fe14fcc3 LW |
1294 | else |
1295 | Safefree(environ[i]); | |
a687059c | 1296 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 | 1297 | #ifndef MSDOS |
a687059c | 1298 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 LW |
1299 | #else |
1300 | /* MS-DOS requires environment variable names to be in uppercase */ | |
fe14fcc3 LW |
1301 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1302 | * some utilities and applications may break because they only look | |
1303 | * for upper case strings. (Fixed strupr() bug here.)] | |
1304 | */ | |
1305 | strcpy(environ[i],nam); strupr(environ[i]); | |
62b28dd9 LW |
1306 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1307 | #endif /* MSDOS */ | |
8d063cd8 LW |
1308 | } |
1309 | ||
79072805 LW |
1310 | I32 |
1311 | setenv_getix(nam) | |
8d063cd8 LW |
1312 | char *nam; |
1313 | { | |
79072805 | 1314 | register I32 i, len = strlen(nam); |
8d063cd8 LW |
1315 | |
1316 | for (i = 0; environ[i]; i++) { | |
1317 | if (strnEQ(environ[i],nam,len) && environ[i][len] == '=') | |
1318 | break; /* strnEQ must come first to avoid */ | |
1319 | } /* potential SEGV's */ | |
1320 | return i; | |
1321 | } | |
a0d0e21e | 1322 | #endif /* !VMS */ |
378cc40b | 1323 | |
16d20bd9 | 1324 | #ifdef UNLINK_ALL_VERSIONS |
79072805 | 1325 | I32 |
378cc40b LW |
1326 | unlnk(f) /* unlink all versions of a file */ |
1327 | char *f; | |
1328 | { | |
79072805 | 1329 | I32 i; |
378cc40b LW |
1330 | |
1331 | for (i = 0; unlink(f) >= 0; i++) ; | |
1332 | return i ? 0 : -1; | |
1333 | } | |
1334 | #endif | |
1335 | ||
85e6fe83 | 1336 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b | 1337 | char * |
7c0587c8 | 1338 | my_bcopy(from,to,len) |
378cc40b LW |
1339 | register char *from; |
1340 | register char *to; | |
79072805 | 1341 | register I32 len; |
378cc40b LW |
1342 | { |
1343 | char *retval = to; | |
1344 | ||
7c0587c8 LW |
1345 | if (from - to >= 0) { |
1346 | while (len--) | |
1347 | *to++ = *from++; | |
1348 | } | |
1349 | else { | |
1350 | to += len; | |
1351 | from += len; | |
1352 | while (len--) | |
faf8582f | 1353 | *(--to) = *(--from); |
7c0587c8 | 1354 | } |
378cc40b LW |
1355 | return retval; |
1356 | } | |
ffed7fef | 1357 | #endif |
378cc40b | 1358 | |
7c0587c8 | 1359 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b | 1360 | char * |
7c0587c8 | 1361 | my_bzero(loc,len) |
378cc40b | 1362 | register char *loc; |
79072805 | 1363 | register I32 len; |
378cc40b LW |
1364 | { |
1365 | char *retval = loc; | |
1366 | ||
1367 | while (len--) | |
1368 | *loc++ = 0; | |
1369 | return retval; | |
1370 | } | |
1371 | #endif | |
7c0587c8 LW |
1372 | |
1373 | #ifndef HAS_MEMCMP | |
79072805 | 1374 | I32 |
7c0587c8 LW |
1375 | my_memcmp(s1,s2,len) |
1376 | register unsigned char *s1; | |
1377 | register unsigned char *s2; | |
79072805 | 1378 | register I32 len; |
7c0587c8 | 1379 | { |
79072805 | 1380 | register I32 tmp; |
7c0587c8 LW |
1381 | |
1382 | while (len--) { | |
1383 | if (tmp = *s1++ - *s2++) | |
1384 | return tmp; | |
1385 | } | |
1386 | return 0; | |
1387 | } | |
1388 | #endif /* HAS_MEMCMP */ | |
a687059c | 1389 | |
4633a7c4 | 1390 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 | 1391 | #ifndef HAS_VPRINTF |
a687059c | 1392 | |
85e6fe83 | 1393 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1394 | char * |
1395 | #else | |
1396 | int | |
1397 | #endif | |
1398 | vsprintf(dest, pat, args) | |
1399 | char *dest, *pat, *args; | |
1400 | { | |
1401 | FILE fakebuf; | |
1402 | ||
1403 | fakebuf._ptr = dest; | |
1404 | fakebuf._cnt = 32767; | |
35c8bce7 LW |
1405 | #ifndef _IOSTRG |
1406 | #define _IOSTRG 0 | |
1407 | #endif | |
a687059c LW |
1408 | fakebuf._flag = _IOWRT|_IOSTRG; |
1409 | _doprnt(pat, args, &fakebuf); /* what a kludge */ | |
1410 | (void)putc('\0', &fakebuf); | |
85e6fe83 | 1411 | #ifdef USE_CHAR_VSPRINTF |
a687059c LW |
1412 | return(dest); |
1413 | #else | |
1414 | return 0; /* perl doesn't use return value */ | |
1415 | #endif | |
1416 | } | |
1417 | ||
fe14fcc3 | 1418 | #endif /* HAS_VPRINTF */ |
4633a7c4 | 1419 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c LW |
1420 | |
1421 | #ifdef MYSWAP | |
ffed7fef | 1422 | #if BYTEORDER != 0x4321 |
a687059c | 1423 | short |
748a9306 | 1424 | #ifndef CAN_PROTOTYPE |
a687059c LW |
1425 | my_swap(s) |
1426 | short s; | |
748a9306 LW |
1427 | #else |
1428 | my_swap(short s) | |
1429 | #endif | |
a687059c LW |
1430 | { |
1431 | #if (BYTEORDER & 1) == 0 | |
1432 | short result; | |
1433 | ||
1434 | result = ((s & 255) << 8) + ((s >> 8) & 255); | |
1435 | return result; | |
1436 | #else | |
1437 | return s; | |
1438 | #endif | |
1439 | } | |
1440 | ||
1441 | long | |
748a9306 LW |
1442 | #ifndef CAN_PROTOTYPE |
1443 | my_htonl(l) | |
a687059c | 1444 | register long l; |
748a9306 LW |
1445 | #else |
1446 | my_htonl(long l) | |
1447 | #endif | |
a687059c LW |
1448 | { |
1449 | union { | |
1450 | long result; | |
ffed7fef | 1451 | char c[sizeof(long)]; |
a687059c LW |
1452 | } u; |
1453 | ||
ffed7fef | 1454 | #if BYTEORDER == 0x1234 |
a687059c LW |
1455 | u.c[0] = (l >> 24) & 255; |
1456 | u.c[1] = (l >> 16) & 255; | |
1457 | u.c[2] = (l >> 8) & 255; | |
1458 | u.c[3] = l & 255; | |
1459 | return u.result; | |
1460 | #else | |
ffed7fef | 1461 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1462 | croak("Unknown BYTEORDER\n"); |
a687059c | 1463 | #else |
79072805 LW |
1464 | register I32 o; |
1465 | register I32 s; | |
a687059c | 1466 | |
ffed7fef LW |
1467 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1468 | u.c[o & 0xf] = (l >> s) & 255; | |
a687059c LW |
1469 | } |
1470 | return u.result; | |
1471 | #endif | |
1472 | #endif | |
1473 | } | |
1474 | ||
1475 | long | |
748a9306 LW |
1476 | #ifndef CAN_PROTOTYPE |
1477 | my_ntohl(l) | |
a687059c | 1478 | register long l; |
748a9306 LW |
1479 | #else |
1480 | my_ntohl(long l) | |
1481 | #endif | |
a687059c LW |
1482 | { |
1483 | union { | |
1484 | long l; | |
ffed7fef | 1485 | char c[sizeof(long)]; |
a687059c LW |
1486 | } u; |
1487 | ||
ffed7fef | 1488 | #if BYTEORDER == 0x1234 |
a687059c LW |
1489 | u.c[0] = (l >> 24) & 255; |
1490 | u.c[1] = (l >> 16) & 255; | |
1491 | u.c[2] = (l >> 8) & 255; | |
1492 | u.c[3] = l & 255; | |
1493 | return u.l; | |
1494 | #else | |
ffed7fef | 1495 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 | 1496 | croak("Unknown BYTEORDER\n"); |
a687059c | 1497 | #else |
79072805 LW |
1498 | register I32 o; |
1499 | register I32 s; | |
a687059c LW |
1500 | |
1501 | u.l = l; | |
1502 | l = 0; | |
ffed7fef LW |
1503 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1504 | l |= (u.c[o & 0xf] & 255) << s; | |
a687059c LW |
1505 | } |
1506 | return l; | |
1507 | #endif | |
1508 | #endif | |
1509 | } | |
1510 | ||
ffed7fef | 1511 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 LW |
1512 | #endif /* MYSWAP */ |
1513 | ||
1514 | /* | |
1515 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. | |
1516 | * If these functions are defined, | |
1517 | * the BYTEORDER is neither 0x1234 nor 0x4321. | |
1518 | * However, this is not assumed. | |
1519 | * -DWS | |
1520 | */ | |
1521 | ||
1522 | #define HTOV(name,type) \ | |
1523 | type \ | |
1524 | name (n) \ | |
1525 | register type n; \ | |
1526 | { \ | |
1527 | union { \ | |
1528 | type value; \ | |
1529 | char c[sizeof(type)]; \ | |
1530 | } u; \ | |
79072805 LW |
1531 | register I32 i; \ |
1532 | register I32 s; \ | |
988174c1 LW |
1533 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1534 | u.c[i] = (n >> s) & 0xFF; \ | |
1535 | } \ | |
1536 | return u.value; \ | |
1537 | } | |
1538 | ||
1539 | #define VTOH(name,type) \ | |
1540 | type \ | |
1541 | name (n) \ | |
1542 | register type n; \ | |
1543 | { \ | |
1544 | union { \ | |
1545 | type value; \ | |
1546 | char c[sizeof(type)]; \ | |
1547 | } u; \ | |
79072805 LW |
1548 | register I32 i; \ |
1549 | register I32 s; \ | |
988174c1 LW |
1550 | u.value = n; \ |
1551 | n = 0; \ | |
1552 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ | |
1553 | n += (u.c[i] & 0xFF) << s; \ | |
1554 | } \ | |
1555 | return n; \ | |
1556 | } | |
1557 | ||
1558 | #if defined(HAS_HTOVS) && !defined(htovs) | |
1559 | HTOV(htovs,short) | |
1560 | #endif | |
1561 | #if defined(HAS_HTOVL) && !defined(htovl) | |
1562 | HTOV(htovl,long) | |
1563 | #endif | |
1564 | #if defined(HAS_VTOHS) && !defined(vtohs) | |
1565 | VTOH(vtohs,short) | |
1566 | #endif | |
1567 | #if defined(HAS_VTOHL) && !defined(vtohl) | |
1568 | VTOH(vtohl,long) | |
1569 | #endif | |
a687059c | 1570 | |
55497cff | 1571 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) \ |
1572 | && !defined(VMS) /* VMS' my_popen() is in VMS.c, same with OS/2. */ | |
760ac839 | 1573 | PerlIO * |
79072805 | 1574 | my_popen(cmd,mode) |
a687059c LW |
1575 | char *cmd; |
1576 | char *mode; | |
1577 | { | |
1578 | int p[2]; | |
79072805 LW |
1579 | register I32 this, that; |
1580 | register I32 pid; | |
1581 | SV *sv; | |
55497cff | 1582 | I32 doexec = |
1583 | #ifdef AMIGAOS | |
1584 | 1; | |
1585 | #else | |
1586 | strNE(cmd,"-"); | |
1587 | #endif | |
a687059c | 1588 | |
ddcf38b7 IZ |
1589 | #ifdef OS2 |
1590 | if (doexec) { | |
1591 | return my_syspopen(cmd,mode); | |
1592 | } | |
1593 | #endif | |
a687059c LW |
1594 | if (pipe(p) < 0) |
1595 | return Nullfp; | |
1596 | this = (*mode == 'w'); | |
1597 | that = !this; | |
463ee0b2 LW |
1598 | if (tainting) { |
1599 | if (doexec) { | |
1600 | taint_env(); | |
1601 | taint_proper("Insecure %s%s", "EXEC"); | |
1602 | } | |
d48672a2 | 1603 | } |
a687059c LW |
1604 | while ((pid = (doexec?vfork():fork())) < 0) { |
1605 | if (errno != EAGAIN) { | |
1606 | close(p[this]); | |
1607 | if (!doexec) | |
463ee0b2 | 1608 | croak("Can't fork"); |
a687059c LW |
1609 | return Nullfp; |
1610 | } | |
1611 | sleep(5); | |
1612 | } | |
1613 | if (pid == 0) { | |
79072805 LW |
1614 | GV* tmpgv; |
1615 | ||
a687059c LW |
1616 | #define THIS that |
1617 | #define THAT this | |
1618 | close(p[THAT]); | |
1619 | if (p[THIS] != (*mode == 'r')) { | |
1620 | dup2(p[THIS], *mode == 'r'); | |
1621 | close(p[THIS]); | |
1622 | } | |
1623 | if (doexec) { | |
a0d0e21e | 1624 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 LW |
1625 | int fd; |
1626 | ||
1627 | #ifndef NOFILE | |
1628 | #define NOFILE 20 | |
1629 | #endif | |
d48672a2 | 1630 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
ae986130 LW |
1631 | close(fd); |
1632 | #endif | |
a687059c LW |
1633 | do_exec(cmd); /* may or may not use the shell */ |
1634 | _exit(1); | |
1635 | } | |
de3bb511 | 1636 | /*SUPPRESS 560*/ |
85e6fe83 | 1637 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 | 1638 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
9f68db38 | 1639 | forkprocess = 0; |
463ee0b2 | 1640 | hv_clear(pidstatus); /* we have no children */ |
a687059c LW |
1641 | return Nullfp; |
1642 | #undef THIS | |
1643 | #undef THAT | |
1644 | } | |
62b28dd9 | 1645 | do_execfree(); /* free any memory malloced by child on vfork */ |
a687059c | 1646 | close(p[that]); |
62b28dd9 LW |
1647 | if (p[that] < p[this]) { |
1648 | dup2(p[this], p[that]); | |
1649 | close(p[this]); | |
1650 | p[this] = p[that]; | |
1651 | } | |
79072805 | 1652 | sv = *av_fetch(fdpid,p[this],TRUE); |
a0d0e21e | 1653 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 1654 | SvIVX(sv) = pid; |
a687059c | 1655 | forkprocess = pid; |
760ac839 | 1656 | return PerlIO_fdopen(p[this], mode); |
a687059c | 1657 | } |
7c0587c8 | 1658 | #else |
55497cff | 1659 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 | 1660 | FILE *popen(); |
760ac839 | 1661 | PerlIO * |
79072805 | 1662 | my_popen(cmd,mode) |
7c0587c8 LW |
1663 | char *cmd; |
1664 | char *mode; | |
1665 | { | |
760ac839 | 1666 | /* Needs work for PerlIO ! */ |
55497cff | 1667 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1668 | return popen(PerlIO_exportFILE(cmd, 0), mode); | |
7c0587c8 LW |
1669 | } |
1670 | #endif | |
1671 | ||
1672 | #endif /* !DOSISH */ | |
a687059c | 1673 | |
748a9306 | 1674 | #ifdef DUMP_FDS |
79072805 | 1675 | dump_fds(s) |
ae986130 LW |
1676 | char *s; |
1677 | { | |
1678 | int fd; | |
1679 | struct stat tmpstatbuf; | |
1680 | ||
760ac839 | 1681 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 | 1682 | for (fd = 0; fd < 32; fd++) { |
a0d0e21e | 1683 | if (Fstat(fd,&tmpstatbuf) >= 0) |
760ac839 | 1684 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 | 1685 | } |
760ac839 | 1686 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 LW |
1687 | } |
1688 | #endif | |
1689 | ||
fe14fcc3 | 1690 | #ifndef HAS_DUP2 |
fec02dd3 | 1691 | int |
a687059c LW |
1692 | dup2(oldfd,newfd) |
1693 | int oldfd; | |
1694 | int newfd; | |
1695 | { | |
a0d0e21e | 1696 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 AD |
1697 | if (oldfd == newfd) |
1698 | return oldfd; | |
62b28dd9 | 1699 | close(newfd); |
fec02dd3 | 1700 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 | 1701 | #else |
d48672a2 | 1702 | int fdtmp[256]; |
79072805 | 1703 | I32 fdx = 0; |
ae986130 LW |
1704 | int fd; |
1705 | ||
fe14fcc3 | 1706 | if (oldfd == newfd) |
fec02dd3 | 1707 | return oldfd; |
a687059c | 1708 | close(newfd); |
fec02dd3 | 1709 | while ((fd = dup(oldfd)) != newfd && fd >= 0) /* good enough for low fd's */ |
ae986130 LW |
1710 | fdtmp[fdx++] = fd; |
1711 | while (fdx > 0) | |
1712 | close(fdtmp[--fdx]); | |
fec02dd3 | 1713 | return fd; |
62b28dd9 | 1714 | #endif |
a687059c LW |
1715 | } |
1716 | #endif | |
1717 | ||
55497cff | 1718 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) \ |
1719 | && !defined(VMS) /* VMS' my_popen() is in VMS.c */ | |
79072805 LW |
1720 | I32 |
1721 | my_pclose(ptr) | |
760ac839 | 1722 | PerlIO *ptr; |
a687059c | 1723 | { |
ecfc5424 | 1724 | Signal_t (*hstat)(), (*istat)(), (*qstat)(); |
a687059c | 1725 | int status; |
a0d0e21e | 1726 | SV **svp; |
20188a90 | 1727 | int pid; |
a687059c | 1728 | |
760ac839 | 1729 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 | 1730 | pid = (int)SvIVX(*svp); |
a0d0e21e LW |
1731 | SvREFCNT_dec(*svp); |
1732 | *svp = &sv_undef; | |
ddcf38b7 IZ |
1733 | #ifdef OS2 |
1734 | if (pid == -1) { /* Opened by popen. */ | |
1735 | return my_syspclose(ptr); | |
1736 | } | |
1737 | #endif | |
760ac839 | 1738 | PerlIO_close(ptr); |
7c0587c8 LW |
1739 | #ifdef UTS |
1740 | if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ | |
1741 | #endif | |
a687059c LW |
1742 | hstat = signal(SIGHUP, SIG_IGN); |
1743 | istat = signal(SIGINT, SIG_IGN); | |
1744 | qstat = signal(SIGQUIT, SIG_IGN); | |
748a9306 LW |
1745 | do { |
1746 | pid = wait4pid(pid, &status, 0); | |
1747 | } while (pid == -1 && errno == EINTR); | |
20188a90 LW |
1748 | signal(SIGHUP, hstat); |
1749 | signal(SIGINT, istat); | |
1750 | signal(SIGQUIT, qstat); | |
1751 | return(pid < 0 ? pid : status); | |
1752 | } | |
4633a7c4 LW |
1753 | #endif /* !DOSISH */ |
1754 | ||
1755 | #if !defined(DOSISH) || defined(OS2) | |
79072805 | 1756 | I32 |
20188a90 LW |
1757 | wait4pid(pid,statusp,flags) |
1758 | int pid; | |
1759 | int *statusp; | |
1760 | int flags; | |
1761 | { | |
79072805 LW |
1762 | SV *sv; |
1763 | SV** svp; | |
20188a90 LW |
1764 | char spid[16]; |
1765 | ||
1766 | if (!pid) | |
1767 | return -1; | |
20188a90 LW |
1768 | if (pid > 0) { |
1769 | sprintf(spid, "%d", pid); | |
79072805 LW |
1770 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
1771 | if (svp && *svp != &sv_undef) { | |
463ee0b2 | 1772 | *statusp = SvIVX(*svp); |
748a9306 | 1773 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
1774 | return pid; |
1775 | } | |
1776 | } | |
1777 | else { | |
79072805 | 1778 | HE *entry; |
20188a90 | 1779 | |
79072805 LW |
1780 | hv_iterinit(pidstatus); |
1781 | if (entry = hv_iternext(pidstatus)) { | |
a0d0e21e | 1782 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 | 1783 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 | 1784 | *statusp = SvIVX(sv); |
20188a90 | 1785 | sprintf(spid, "%d", pid); |
748a9306 | 1786 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 LW |
1787 | return pid; |
1788 | } | |
1789 | } | |
79072805 LW |
1790 | #ifdef HAS_WAITPID |
1791 | return waitpid(pid,statusp,flags); | |
1792 | #else | |
a0d0e21e LW |
1793 | #ifdef HAS_WAIT4 |
1794 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); | |
1795 | #else | |
1796 | { | |
1797 | I32 result; | |
1798 | if (flags) | |
1799 | croak("Can't do waitpid with flags"); | |
1800 | else { | |
1801 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) | |
1802 | pidgone(result,*statusp); | |
1803 | if (result < 0) | |
1804 | *statusp = -1; | |
1805 | } | |
1806 | return result; | |
a687059c LW |
1807 | } |
1808 | #endif | |
20188a90 | 1809 | #endif |
a687059c | 1810 | } |
7c0587c8 | 1811 | #endif /* !DOSISH */ |
a687059c | 1812 | |
7c0587c8 | 1813 | void |
de3bb511 | 1814 | /*SUPPRESS 590*/ |
a687059c LW |
1815 | pidgone(pid,status) |
1816 | int pid; | |
1817 | int status; | |
1818 | { | |
79072805 | 1819 | register SV *sv; |
20188a90 | 1820 | char spid[16]; |
a687059c | 1821 | |
20188a90 | 1822 | sprintf(spid, "%d", pid); |
79072805 | 1823 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e | 1824 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 | 1825 | SvIVX(sv) = status; |
20188a90 | 1826 | return; |
a687059c LW |
1827 | } |
1828 | ||
55497cff | 1829 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 | 1830 | int pclose(); |
ddcf38b7 IZ |
1831 | #ifdef HAS_FORK |
1832 | int /* Cannot prototype with I32 | |
1833 | in os2ish.h. */ | |
1834 | my_syspclose(ptr) | |
1835 | #else | |
79072805 LW |
1836 | I32 |
1837 | my_pclose(ptr) | |
ddcf38b7 | 1838 | #endif |
760ac839 | 1839 | PerlIO *ptr; |
a687059c | 1840 | { |
760ac839 LW |
1841 | /* Needs work for PerlIO ! */ |
1842 | FILE *f = PerlIO_findFILE(ptr); | |
1843 | I32 result = pclose(f); | |
1844 | PerlIO_releaseFILE(ptr,f); | |
1845 | return result; | |
a687059c | 1846 | } |
7c0587c8 | 1847 | #endif |
9f68db38 LW |
1848 | |
1849 | void | |
1850 | repeatcpy(to,from,len,count) | |
1851 | register char *to; | |
1852 | register char *from; | |
79072805 LW |
1853 | I32 len; |
1854 | register I32 count; | |
9f68db38 | 1855 | { |
79072805 | 1856 | register I32 todo; |
9f68db38 LW |
1857 | register char *frombase = from; |
1858 | ||
1859 | if (len == 1) { | |
1860 | todo = *from; | |
1861 | while (count-- > 0) | |
1862 | *to++ = todo; | |
1863 | return; | |
1864 | } | |
1865 | while (count-- > 0) { | |
1866 | for (todo = len; todo > 0; todo--) { | |
1867 | *to++ = *from++; | |
1868 | } | |
1869 | from = frombase; | |
1870 | } | |
1871 | } | |
0f85fab0 LW |
1872 | |
1873 | #ifndef CASTNEGFLOAT | |
463ee0b2 | 1874 | U32 |
79072805 | 1875 | cast_ulong(f) |
0f85fab0 LW |
1876 | double f; |
1877 | { | |
1878 | long along; | |
1879 | ||
27e2fb84 | 1880 | #if CASTFLAGS & 2 |
34de22dd LW |
1881 | # define BIGDOUBLE 2147483648.0 |
1882 | if (f >= BIGDOUBLE) | |
1883 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; | |
1884 | #endif | |
0f85fab0 LW |
1885 | if (f >= 0.0) |
1886 | return (unsigned long)f; | |
1887 | along = (long)f; | |
1888 | return (unsigned long)along; | |
1889 | } | |
ed6116ce LW |
1890 | # undef BIGDOUBLE |
1891 | #endif | |
1892 | ||
1893 | #ifndef CASTI32 | |
5d94fbed | 1894 | |
5d94fbed AD |
1895 | /* Unfortunately, on some systems the cast_uv() function doesn't |
1896 | work with the system-supplied definition of ULONG_MAX. The | |
1897 | comparison (f >= ULONG_MAX) always comes out true. It must be a | |
1898 | problem with the compiler constant folding. | |
1899 | ||
1900 | In any case, this workaround should be fine on any two's complement | |
1901 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your | |
1902 | ccflags. | |
1903 | --Andy Dougherty <doughera@lafcol.lafayette.edu> | |
1904 | */ | |
1eb770ff | 1905 | |
1906 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead | |
1907 | of LONG_(MIN/MAX). | |
1908 | -- Kenneth Albanowski <kjahds@kjahds.com> | |
1909 | */ | |
1910 | ||
20cec16a | 1911 | #ifndef MY_UV_MAX |
1912 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) | |
5d94fbed AD |
1913 | #endif |
1914 | ||
ed6116ce LW |
1915 | I32 |
1916 | cast_i32(f) | |
1917 | double f; | |
1918 | { | |
20cec16a | 1919 | if (f >= I32_MAX) |
1920 | return (I32) I32_MAX; | |
1921 | if (f <= I32_MIN) | |
1922 | return (I32) I32_MIN; | |
ed6116ce LW |
1923 | return (I32) f; |
1924 | } | |
a0d0e21e LW |
1925 | |
1926 | IV | |
1927 | cast_iv(f) | |
1928 | double f; | |
1929 | { | |
20cec16a | 1930 | if (f >= IV_MAX) |
1931 | return (IV) IV_MAX; | |
1932 | if (f <= IV_MIN) | |
1933 | return (IV) IV_MIN; | |
a0d0e21e LW |
1934 | return (IV) f; |
1935 | } | |
5d94fbed AD |
1936 | |
1937 | UV | |
1938 | cast_uv(f) | |
1939 | double f; | |
1940 | { | |
20cec16a | 1941 | if (f >= MY_UV_MAX) |
1942 | return (UV) MY_UV_MAX; | |
5d94fbed AD |
1943 | return (UV) f; |
1944 | } | |
1945 | ||
0f85fab0 | 1946 | #endif |
62b28dd9 | 1947 | |
fe14fcc3 | 1948 | #ifndef HAS_RENAME |
79072805 | 1949 | I32 |
62b28dd9 LW |
1950 | same_dirent(a,b) |
1951 | char *a; | |
1952 | char *b; | |
1953 | { | |
93a17b20 LW |
1954 | char *fa = strrchr(a,'/'); |
1955 | char *fb = strrchr(b,'/'); | |
62b28dd9 LW |
1956 | struct stat tmpstatbuf1; |
1957 | struct stat tmpstatbuf2; | |
1958 | #ifndef MAXPATHLEN | |
1959 | #define MAXPATHLEN 1024 | |
1960 | #endif | |
1961 | char tmpbuf[MAXPATHLEN+1]; | |
1962 | ||
1963 | if (fa) | |
1964 | fa++; | |
1965 | else | |
1966 | fa = a; | |
1967 | if (fb) | |
1968 | fb++; | |
1969 | else | |
1970 | fb = b; | |
1971 | if (strNE(a,b)) | |
1972 | return FALSE; | |
1973 | if (fa == a) | |
6eb13c3b | 1974 | strcpy(tmpbuf,"."); |
62b28dd9 LW |
1975 | else |
1976 | strncpy(tmpbuf, a, fa - a); | |
a0d0e21e | 1977 | if (Stat(tmpbuf, &tmpstatbuf1) < 0) |
62b28dd9 LW |
1978 | return FALSE; |
1979 | if (fb == b) | |
6eb13c3b | 1980 | strcpy(tmpbuf,"."); |
62b28dd9 LW |
1981 | else |
1982 | strncpy(tmpbuf, b, fb - b); | |
a0d0e21e | 1983 | if (Stat(tmpbuf, &tmpstatbuf2) < 0) |
62b28dd9 LW |
1984 | return FALSE; |
1985 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && | |
1986 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; | |
1987 | } | |
fe14fcc3 LW |
1988 | #endif /* !HAS_RENAME */ |
1989 | ||
55497cff | 1990 | UV |
79072805 | 1991 | scan_oct(start, len, retlen) |
fe14fcc3 | 1992 | char *start; |
79072805 LW |
1993 | I32 len; |
1994 | I32 *retlen; | |
fe14fcc3 LW |
1995 | { |
1996 | register char *s = start; | |
55497cff | 1997 | register UV retval = 0; |
1998 | bool overflowed = FALSE; | |
fe14fcc3 | 1999 | |
748a9306 | 2000 | while (len && *s >= '0' && *s <= '7') { |
55497cff | 2001 | register UV n = retval << 3; |
2002 | if (!overflowed && (n >> 3) != retval) { | |
2003 | warn("Integer overflow in octal number"); | |
2004 | overflowed = TRUE; | |
2005 | } | |
2006 | retval = n | (*s++ - '0'); | |
748a9306 | 2007 | len--; |
fe14fcc3 | 2008 | } |
748a9306 LW |
2009 | if (dowarn && len && (*s == '8' || *s == '9')) |
2010 | warn("Illegal octal digit ignored"); | |
fe14fcc3 LW |
2011 | *retlen = s - start; |
2012 | return retval; | |
2013 | } | |
2014 | ||
2015 | unsigned long | |
79072805 | 2016 | scan_hex(start, len, retlen) |
fe14fcc3 | 2017 | char *start; |
79072805 LW |
2018 | I32 len; |
2019 | I32 *retlen; | |
fe14fcc3 LW |
2020 | { |
2021 | register char *s = start; | |
55497cff | 2022 | register UV retval = 0; |
2023 | bool overflowed = FALSE; | |
fe14fcc3 LW |
2024 | char *tmp; |
2025 | ||
93a17b20 | 2026 | while (len-- && *s && (tmp = strchr(hexdigit, *s))) { |
55497cff | 2027 | register UV n = retval << 4; |
2028 | if (!overflowed && (n >> 4) != retval) { | |
2029 | warn("Integer overflow in hex number"); | |
2030 | overflowed = TRUE; | |
2031 | } | |
2032 | retval = n | (tmp - hexdigit) & 15; | |
fe14fcc3 LW |
2033 | s++; |
2034 | } | |
2035 | *retlen = s - start; | |
2036 | return retval; | |
2037 | } | |
760ac839 LW |
2038 | |
2039 | ||
2040 | #ifdef HUGE_VAL | |
2041 | /* | |
2042 | * This hack is to force load of "huge" support from libm.a | |
2043 | * So it is in perl for (say) POSIX to use. | |
2044 | * Needed for SunOS with Sun's 'acc' for example. | |
2045 | */ | |
2046 | double | |
2047 | Perl_huge() | |
2048 | { | |
2049 | return HUGE_VAL; | |
2050 | } | |
2051 | #endif |