Commit | Line | Data |
a0d0e21e |
1 | /* util.c |
a687059c |
2 | * |
a0d0e21e |
3 | * Copyright (c) 1991-1994, Larry Wall |
a687059c |
4 | * |
d48672a2 |
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 |
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 | |
ecfc5424 |
22 | /* Omit this -- it causes too much grief on mixed systems. |
85e6fe83 |
23 | #ifdef I_UNISTD |
8990e307 |
24 | # include <unistd.h> |
25 | #endif |
ecfc5424 |
26 | */ |
8990e307 |
27 | |
a687059c |
28 | #ifdef I_VFORK |
29 | # include <vfork.h> |
30 | #endif |
31 | |
94b6baf5 |
32 | /* Put this after #includes because fork and vfork prototypes may |
33 | conflict. |
34 | */ |
35 | #ifndef HAS_VFORK |
36 | # define vfork fork |
37 | #endif |
38 | |
fe14fcc3 |
39 | #ifdef I_FCNTL |
40 | # include <fcntl.h> |
41 | #endif |
42 | #ifdef I_SYS_FILE |
43 | # include <sys/file.h> |
44 | #endif |
45 | |
8d063cd8 |
46 | #define FLUSH |
8d063cd8 |
47 | |
a0d0e21e |
48 | #ifdef LEAKTEST |
49 | static void xstat _((void)); |
50 | #endif |
51 | |
de3bb511 |
52 | #ifndef safemalloc |
53 | |
8d063cd8 |
54 | /* paranoid version of malloc */ |
55 | |
a687059c |
56 | /* NOTE: Do not call the next three routines directly. Use the macros |
57 | * in handy.h, so that we can easily redefine everything to do tracking of |
58 | * allocated hunks back to the original New to track down any memory leaks. |
59 | */ |
60 | |
8d063cd8 |
61 | char * |
62 | safemalloc(size) |
62b28dd9 |
63 | #ifdef MSDOS |
64 | unsigned long size; |
65 | #else |
8d063cd8 |
66 | MEM_SIZE size; |
62b28dd9 |
67 | #endif /* MSDOS */ |
8d063cd8 |
68 | { |
2304df62 |
69 | char *ptr; |
62b28dd9 |
70 | #ifdef MSDOS |
71 | if (size > 0xffff) { |
760ac839 |
72 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
79072805 |
73 | my_exit(1); |
62b28dd9 |
74 | } |
75 | #endif /* MSDOS */ |
34de22dd |
76 | #ifdef DEBUGGING |
77 | if ((long)size < 0) |
463ee0b2 |
78 | croak("panic: malloc"); |
34de22dd |
79 | #endif |
8d063cd8 |
80 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 |
81 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
82 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
79072805 |
83 | #else |
760ac839 |
84 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
8d063cd8 |
85 | #endif |
86 | if (ptr != Nullch) |
87 | return ptr; |
7c0587c8 |
88 | else if (nomemok) |
89 | return Nullch; |
8d063cd8 |
90 | else { |
760ac839 |
91 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 |
92 | my_exit(1); |
8d063cd8 |
93 | } |
94 | /*NOTREACHED*/ |
95 | } |
96 | |
97 | /* paranoid version of realloc */ |
98 | |
99 | char * |
100 | saferealloc(where,size) |
101 | char *where; |
62b28dd9 |
102 | #ifndef MSDOS |
8d063cd8 |
103 | MEM_SIZE size; |
62b28dd9 |
104 | #else |
105 | unsigned long size; |
106 | #endif /* MSDOS */ |
8d063cd8 |
107 | { |
108 | char *ptr; |
ecfc5424 |
109 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
8d063cd8 |
110 | char *realloc(); |
ecfc5424 |
111 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 |
112 | |
62b28dd9 |
113 | #ifdef MSDOS |
114 | if (size > 0xffff) { |
760ac839 |
115 | PerlIO_printf(PerlIO_stderr(), "Reallocation too large: %lx\n", size) FLUSH; |
79072805 |
116 | my_exit(1); |
62b28dd9 |
117 | } |
118 | #endif /* MSDOS */ |
378cc40b |
119 | if (!where) |
463ee0b2 |
120 | croak("Null realloc"); |
34de22dd |
121 | #ifdef DEBUGGING |
122 | if ((long)size < 0) |
463ee0b2 |
123 | croak("panic: realloc"); |
34de22dd |
124 | #endif |
8d063cd8 |
125 | ptr = realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ |
79072805 |
126 | |
127 | #if !(defined(I286) || defined(atarist)) |
128 | DEBUG_m( { |
760ac839 |
129 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++); |
130 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
131 | } ) |
132 | #else |
133 | DEBUG_m( { |
760ac839 |
134 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++); |
135 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
136 | } ) |
8d063cd8 |
137 | #endif |
79072805 |
138 | |
8d063cd8 |
139 | if (ptr != Nullch) |
140 | return ptr; |
7c0587c8 |
141 | else if (nomemok) |
142 | return Nullch; |
8d063cd8 |
143 | else { |
760ac839 |
144 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 |
145 | my_exit(1); |
8d063cd8 |
146 | } |
147 | /*NOTREACHED*/ |
148 | } |
149 | |
150 | /* safe version of free */ |
151 | |
a687059c |
152 | void |
8d063cd8 |
153 | safefree(where) |
154 | char *where; |
155 | { |
79072805 |
156 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
157 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",where,an++)); |
79072805 |
158 | #else |
760ac839 |
159 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",where,an++)); |
8d063cd8 |
160 | #endif |
378cc40b |
161 | if (where) { |
de3bb511 |
162 | /*SUPPRESS 701*/ |
378cc40b |
163 | free(where); |
164 | } |
8d063cd8 |
165 | } |
166 | |
1050c9ca |
167 | /* safe version of calloc */ |
168 | |
169 | char * |
170 | safecalloc(count, size) |
171 | MEM_SIZE count; |
172 | MEM_SIZE size; |
173 | { |
174 | char *ptr; |
175 | |
176 | #ifdef MSDOS |
177 | if (size * count > 0xffff) { |
760ac839 |
178 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size * count) FLUSH; |
1050c9ca |
179 | my_exit(1); |
180 | } |
181 | #endif /* MSDOS */ |
182 | #ifdef DEBUGGING |
183 | if ((long)size < 0 || (long)count < 0) |
184 | croak("panic: calloc"); |
185 | #endif |
186 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
187 | DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
188 | #else |
760ac839 |
189 | DEBUG_m(PerlIO_printf(PerlIO_stderr(), "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
190 | #endif |
191 | size *= count; |
192 | ptr = malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
193 | if (ptr != Nullch) { |
194 | memset((void*)ptr, 0, size); |
195 | return ptr; |
196 | } |
197 | else if (nomemok) |
198 | return Nullch; |
199 | else { |
760ac839 |
200 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
1050c9ca |
201 | my_exit(1); |
202 | } |
203 | /*NOTREACHED*/ |
204 | } |
205 | |
de3bb511 |
206 | #endif /* !safemalloc */ |
207 | |
a687059c |
208 | #ifdef LEAKTEST |
209 | |
210 | #define ALIGN sizeof(long) |
8d063cd8 |
211 | |
212 | char * |
a687059c |
213 | safexmalloc(x,size) |
79072805 |
214 | I32 x; |
a687059c |
215 | MEM_SIZE size; |
8d063cd8 |
216 | { |
a687059c |
217 | register char *where; |
8d063cd8 |
218 | |
a687059c |
219 | where = safemalloc(size + ALIGN); |
220 | xcount[x]++; |
221 | where[0] = x % 100; |
222 | where[1] = x / 100; |
223 | return where + ALIGN; |
8d063cd8 |
224 | } |
8d063cd8 |
225 | |
226 | char * |
a687059c |
227 | safexrealloc(where,size) |
228 | char *where; |
229 | MEM_SIZE size; |
230 | { |
a0d0e21e |
231 | register char *new = saferealloc(where - ALIGN, size + ALIGN); |
232 | return new + ALIGN; |
a687059c |
233 | } |
234 | |
235 | void |
236 | safexfree(where) |
237 | char *where; |
238 | { |
79072805 |
239 | I32 x; |
a687059c |
240 | |
241 | if (!where) |
242 | return; |
243 | where -= ALIGN; |
244 | x = where[0] + 100 * where[1]; |
245 | xcount[x]--; |
246 | safefree(where); |
247 | } |
248 | |
1050c9ca |
249 | char * |
250 | safexcalloc(x,count,size) |
251 | I32 x; |
252 | MEM_SIZE count; |
253 | MEM_SIZE size; |
254 | { |
255 | register char *where; |
256 | |
257 | where = safexmalloc(x, size * count + ALIGN); |
258 | xcount[x]++; |
259 | memset((void*)where + ALIGN, 0, size * count); |
260 | where[0] = x % 100; |
261 | where[1] = x / 100; |
262 | return where + ALIGN; |
263 | } |
264 | |
7c0587c8 |
265 | static void |
a687059c |
266 | xstat() |
8d063cd8 |
267 | { |
79072805 |
268 | register I32 i; |
8d063cd8 |
269 | |
a687059c |
270 | for (i = 0; i < MAXXCOUNT; i++) { |
de3bb511 |
271 | if (xcount[i] > lastxcount[i]) { |
760ac839 |
272 | PerlIO_printf(PerlIO_stderr(),"%2d %2d\t%ld\n", i / 100, i % 100, xcount[i]); |
a687059c |
273 | lastxcount[i] = xcount[i]; |
8d063cd8 |
274 | } |
275 | } |
8d063cd8 |
276 | } |
a687059c |
277 | |
278 | #endif /* LEAKTEST */ |
8d063cd8 |
279 | |
280 | /* copy a string up to some (non-backslashed) delimiter, if any */ |
281 | |
282 | char * |
a687059c |
283 | cpytill(to,from,fromend,delim,retlen) |
62b28dd9 |
284 | register char *to; |
285 | register char *from; |
a687059c |
286 | register char *fromend; |
a0d0e21e |
287 | register int delim; |
79072805 |
288 | I32 *retlen; |
8d063cd8 |
289 | { |
a687059c |
290 | char *origto = to; |
291 | |
292 | for (; from < fromend; from++,to++) { |
378cc40b |
293 | if (*from == '\\') { |
294 | if (from[1] == delim) |
295 | from++; |
296 | else if (from[1] == '\\') |
297 | *to++ = *from++; |
298 | } |
8d063cd8 |
299 | else if (*from == delim) |
300 | break; |
301 | *to = *from; |
302 | } |
303 | *to = '\0'; |
a687059c |
304 | *retlen = to - origto; |
8d063cd8 |
305 | return from; |
306 | } |
307 | |
308 | /* return ptr to little string in big string, NULL if not found */ |
378cc40b |
309 | /* This routine was donated by Corey Satten. */ |
8d063cd8 |
310 | |
311 | char * |
312 | instr(big, little) |
378cc40b |
313 | register char *big; |
314 | register char *little; |
315 | { |
316 | register char *s, *x; |
79072805 |
317 | register I32 first; |
378cc40b |
318 | |
a687059c |
319 | if (!little) |
320 | return big; |
321 | first = *little++; |
378cc40b |
322 | if (!first) |
323 | return big; |
324 | while (*big) { |
325 | if (*big++ != first) |
326 | continue; |
327 | for (x=big,s=little; *s; /**/ ) { |
328 | if (!*x) |
329 | return Nullch; |
330 | if (*s++ != *x++) { |
331 | s--; |
332 | break; |
333 | } |
334 | } |
335 | if (!*s) |
336 | return big-1; |
337 | } |
338 | return Nullch; |
339 | } |
8d063cd8 |
340 | |
a687059c |
341 | /* same as instr but allow embedded nulls */ |
342 | |
343 | char * |
344 | ninstr(big, bigend, little, lend) |
345 | register char *big; |
346 | register char *bigend; |
347 | char *little; |
348 | char *lend; |
8d063cd8 |
349 | { |
a687059c |
350 | register char *s, *x; |
79072805 |
351 | register I32 first = *little; |
a687059c |
352 | register char *littleend = lend; |
378cc40b |
353 | |
a0d0e21e |
354 | if (!first && little >= littleend) |
a687059c |
355 | return big; |
de3bb511 |
356 | if (bigend - big < littleend - little) |
357 | return Nullch; |
a687059c |
358 | bigend -= littleend - little++; |
359 | while (big <= bigend) { |
360 | if (*big++ != first) |
361 | continue; |
362 | for (x=big,s=little; s < littleend; /**/ ) { |
363 | if (*s++ != *x++) { |
364 | s--; |
365 | break; |
366 | } |
367 | } |
368 | if (s >= littleend) |
369 | return big-1; |
378cc40b |
370 | } |
a687059c |
371 | return Nullch; |
372 | } |
373 | |
374 | /* reverse of the above--find last substring */ |
375 | |
376 | char * |
377 | rninstr(big, bigend, little, lend) |
378 | register char *big; |
379 | char *bigend; |
380 | char *little; |
381 | char *lend; |
382 | { |
383 | register char *bigbeg; |
384 | register char *s, *x; |
79072805 |
385 | register I32 first = *little; |
a687059c |
386 | register char *littleend = lend; |
387 | |
a0d0e21e |
388 | if (!first && little >= littleend) |
a687059c |
389 | return bigend; |
390 | bigbeg = big; |
391 | big = bigend - (littleend - little++); |
392 | while (big >= bigbeg) { |
393 | if (*big-- != first) |
394 | continue; |
395 | for (x=big+2,s=little; s < littleend; /**/ ) { |
396 | if (*s++ != *x++) { |
397 | s--; |
398 | break; |
399 | } |
400 | } |
401 | if (s >= littleend) |
402 | return big+1; |
378cc40b |
403 | } |
a687059c |
404 | return Nullch; |
378cc40b |
405 | } |
a687059c |
406 | |
f0c5b223 |
407 | /* Initialize locale (and the fold[] array).*/ |
408 | int |
1050c9ca |
409 | perl_init_i18nl10n(printwarn) |
f0c5b223 |
410 | int printwarn; |
411 | { |
412 | int ok = 1; |
413 | /* returns |
414 | * 1 = set ok or not applicable, |
415 | * 0 = fallback to C locale, |
416 | * -1 = fallback to C locale failed |
417 | */ |
418 | #if defined(HAS_SETLOCALE) && defined(LC_CTYPE) |
419 | char * lang = getenv("LANG"); |
420 | char * lc_all = getenv("LC_ALL"); |
421 | char * lc_ctype = getenv("LC_CTYPE"); |
422 | int i; |
423 | |
424 | if (setlocale(LC_CTYPE, "") == NULL && (lc_all || lc_ctype || lang)) { |
425 | if (printwarn) { |
760ac839 |
426 | PerlIO_printf(PerlIO_stderr(), "warning: setlocale(LC_CTYPE, \"\") failed.\n"); |
427 | PerlIO_printf(PerlIO_stderr(), |
f0c5b223 |
428 | "warning: LC_ALL = \"%s\", LC_CTYPE = \"%s\", LANG = \"%s\",\n", |
429 | lc_all ? lc_all : "(null)", |
430 | lc_ctype ? lc_ctype : "(null)", |
431 | lang ? lang : "(null)" |
432 | ); |
760ac839 |
433 | PerlIO_printf(PerlIO_stderr(), "warning: falling back to the \"C\" locale.\n"); |
f0c5b223 |
434 | } |
435 | ok = 0; |
436 | if (setlocale(LC_CTYPE, "C") == NULL) |
437 | ok = -1; |
438 | } |
439 | |
440 | for (i = 0; i < 256; i++) { |
441 | if (isUPPER(i)) fold[i] = toLOWER(i); |
442 | else if (isLOWER(i)) fold[i] = toUPPER(i); |
443 | else fold[i] = i; |
444 | } |
445 | #endif |
446 | return ok; |
447 | } |
448 | |
378cc40b |
449 | void |
79072805 |
450 | fbm_compile(sv, iflag) |
451 | SV *sv; |
452 | I32 iflag; |
378cc40b |
453 | { |
a687059c |
454 | register unsigned char *s; |
455 | register unsigned char *table; |
79072805 |
456 | register U32 i; |
457 | register U32 len = SvCUR(sv); |
458 | I32 rarest = 0; |
459 | U32 frequency = 256; |
460 | |
748a9306 |
461 | if (len > 255) |
462 | return; /* can't have offsets that big */ |
79072805 |
463 | Sv_Grow(sv,len+258); |
463ee0b2 |
464 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
a687059c |
465 | s = table - 2; |
466 | for (i = 0; i < 256; i++) { |
378cc40b |
467 | table[i] = len; |
468 | } |
469 | i = 0; |
463ee0b2 |
470 | while (s >= (unsigned char*)(SvPVX(sv))) |
a687059c |
471 | { |
472 | if (table[*s] == len) { |
473 | #ifndef pdp11 |
474 | if (iflag) |
475 | table[*s] = table[fold[*s]] = i; |
476 | #else |
477 | if (iflag) { |
79072805 |
478 | I32 j; |
a687059c |
479 | j = fold[*s]; |
480 | table[j] = i; |
481 | table[*s] = i; |
482 | } |
483 | #endif /* pdp11 */ |
484 | else |
485 | table[*s] = i; |
486 | } |
378cc40b |
487 | s--,i++; |
488 | } |
79072805 |
489 | sv_upgrade(sv, SVt_PVBM); |
a0d0e21e |
490 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 |
491 | SvVALID_on(sv); |
378cc40b |
492 | |
463ee0b2 |
493 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
a687059c |
494 | if (iflag) { |
79072805 |
495 | register U32 tmp, foldtmp; |
496 | SvCASEFOLD_on(sv); |
a687059c |
497 | for (i = 0; i < len; i++) { |
498 | tmp=freq[s[i]]; |
499 | foldtmp=freq[fold[s[i]]]; |
500 | if (tmp < frequency && foldtmp < frequency) { |
501 | rarest = i; |
502 | /* choose most frequent among the two */ |
503 | frequency = (tmp > foldtmp) ? tmp : foldtmp; |
504 | } |
505 | } |
506 | } |
507 | else { |
508 | for (i = 0; i < len; i++) { |
509 | if (freq[s[i]] < frequency) { |
510 | rarest = i; |
511 | frequency = freq[s[i]]; |
512 | } |
378cc40b |
513 | } |
514 | } |
79072805 |
515 | BmRARE(sv) = s[rarest]; |
516 | BmPREVIOUS(sv) = rarest; |
760ac839 |
517 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b |
518 | } |
519 | |
378cc40b |
520 | char * |
79072805 |
521 | fbm_instr(big, bigend, littlestr) |
a687059c |
522 | unsigned char *big; |
523 | register unsigned char *bigend; |
79072805 |
524 | SV *littlestr; |
378cc40b |
525 | { |
a687059c |
526 | register unsigned char *s; |
79072805 |
527 | register I32 tmp; |
528 | register I32 littlelen; |
a687059c |
529 | register unsigned char *little; |
530 | register unsigned char *table; |
531 | register unsigned char *olds; |
532 | register unsigned char *oldlittle; |
378cc40b |
533 | |
79072805 |
534 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e |
535 | STRLEN len; |
536 | char *l = SvPV(littlestr,len); |
537 | if (!len) |
d48672a2 |
538 | return (char*)big; |
a0d0e21e |
539 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 |
540 | } |
378cc40b |
541 | |
79072805 |
542 | littlelen = SvCUR(littlestr); |
543 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
0f85fab0 |
544 | if (littlelen > bigend - big) |
545 | return Nullch; |
463ee0b2 |
546 | little = (unsigned char*)SvPVX(littlestr); |
79072805 |
547 | if (SvCASEFOLD(littlestr)) { /* oops, fake it */ |
a687059c |
548 | big = bigend - littlelen; /* just start near end */ |
549 | if (bigend[-1] == '\n' && little[littlelen-1] != '\n') |
550 | big--; |
378cc40b |
551 | } |
552 | else { |
a687059c |
553 | s = bigend - littlelen; |
1aef975c |
554 | if (*s == *little && bcmp((char*)s,(char*)little,littlelen)==0) |
a687059c |
555 | return (char*)s; /* how sweet it is */ |
34de22dd |
556 | else if (bigend[-1] == '\n' && little[littlelen-1] != '\n' |
557 | && s > big) { |
a687059c |
558 | s--; |
1aef975c |
559 | if (*s == *little && bcmp((char*)s,(char*)little,littlelen)==0) |
a687059c |
560 | return (char*)s; |
561 | } |
562 | return Nullch; |
563 | } |
564 | } |
463ee0b2 |
565 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 |
566 | if (--littlelen >= bigend - big) |
567 | return Nullch; |
568 | s = big + littlelen; |
a687059c |
569 | oldlittle = little = table - 2; |
79072805 |
570 | if (SvCASEFOLD(littlestr)) { /* case insensitive? */ |
20188a90 |
571 | if (s < bigend) { |
a687059c |
572 | top1: |
de3bb511 |
573 | /*SUPPRESS 560*/ |
a687059c |
574 | if (tmp = table[*s]) { |
62b28dd9 |
575 | #ifdef POINTERRIGOR |
576 | if (bigend - s > tmp) { |
577 | s += tmp; |
578 | goto top1; |
579 | } |
580 | #else |
581 | if ((s += tmp) < bigend) |
582 | goto top1; |
583 | #endif |
584 | return Nullch; |
a687059c |
585 | } |
586 | else { |
587 | tmp = littlelen; /* less expensive than calling strncmp() */ |
588 | olds = s; |
589 | while (tmp--) { |
590 | if (*--s == *--little || fold[*s] == *little) |
591 | continue; |
592 | s = olds + 1; /* here we pay the price for failure */ |
593 | little = oldlittle; |
594 | if (s < bigend) /* fake up continue to outer loop */ |
595 | goto top1; |
596 | return Nullch; |
597 | } |
a687059c |
598 | return (char *)s; |
a687059c |
599 | } |
600 | } |
601 | } |
602 | else { |
20188a90 |
603 | if (s < bigend) { |
a687059c |
604 | top2: |
de3bb511 |
605 | /*SUPPRESS 560*/ |
a687059c |
606 | if (tmp = table[*s]) { |
62b28dd9 |
607 | #ifdef POINTERRIGOR |
608 | if (bigend - s > tmp) { |
609 | s += tmp; |
610 | goto top2; |
611 | } |
612 | #else |
613 | if ((s += tmp) < bigend) |
614 | goto top2; |
615 | #endif |
616 | return Nullch; |
a687059c |
617 | } |
618 | else { |
619 | tmp = littlelen; /* less expensive than calling strncmp() */ |
620 | olds = s; |
621 | while (tmp--) { |
622 | if (*--s == *--little) |
623 | continue; |
624 | s = olds + 1; /* here we pay the price for failure */ |
625 | little = oldlittle; |
626 | if (s < bigend) /* fake up continue to outer loop */ |
627 | goto top2; |
628 | return Nullch; |
629 | } |
a687059c |
630 | return (char *)s; |
378cc40b |
631 | } |
378cc40b |
632 | } |
633 | } |
634 | return Nullch; |
635 | } |
636 | |
637 | char * |
638 | screaminstr(bigstr, littlestr) |
79072805 |
639 | SV *bigstr; |
640 | SV *littlestr; |
378cc40b |
641 | { |
a687059c |
642 | register unsigned char *s, *x; |
643 | register unsigned char *big; |
79072805 |
644 | register I32 pos; |
645 | register I32 previous; |
646 | register I32 first; |
a687059c |
647 | register unsigned char *little; |
648 | register unsigned char *bigend; |
649 | register unsigned char *littleend; |
378cc40b |
650 | |
79072805 |
651 | if ((pos = screamfirst[BmRARE(littlestr)]) < 0) |
378cc40b |
652 | return Nullch; |
463ee0b2 |
653 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 |
654 | littleend = little + SvCUR(littlestr); |
378cc40b |
655 | first = *little++; |
79072805 |
656 | previous = BmPREVIOUS(littlestr); |
463ee0b2 |
657 | big = (unsigned char *)(SvPVX(bigstr)); |
79072805 |
658 | bigend = big + SvCUR(bigstr); |
378cc40b |
659 | while (pos < previous) { |
660 | if (!(pos += screamnext[pos])) |
661 | return Nullch; |
662 | } |
de3bb511 |
663 | #ifdef POINTERRIGOR |
79072805 |
664 | if (SvCASEFOLD(littlestr)) { /* case insignificant? */ |
a687059c |
665 | do { |
988174c1 |
666 | if (big[pos-previous] != first && big[pos-previous] != fold[first]) |
667 | continue; |
de3bb511 |
668 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
669 | if (x >= bigend) |
670 | return Nullch; |
671 | if (*s++ != *x++ && fold[*(s-1)] != *(x-1)) { |
672 | s--; |
673 | break; |
674 | } |
675 | } |
676 | if (s == littleend) |
de3bb511 |
677 | return (char *)(big+pos-previous); |
de3bb511 |
678 | } while ( |
de3bb511 |
679 | pos += screamnext[pos] /* does this goof up anywhere? */ |
de3bb511 |
680 | ); |
681 | } |
682 | else { |
683 | do { |
988174c1 |
684 | if (big[pos-previous] != first) |
685 | continue; |
de3bb511 |
686 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
687 | if (x >= bigend) |
688 | return Nullch; |
689 | if (*s++ != *x++) { |
690 | s--; |
691 | break; |
692 | } |
693 | } |
694 | if (s == littleend) |
de3bb511 |
695 | return (char *)(big+pos-previous); |
79072805 |
696 | } while ( pos += screamnext[pos] ); |
de3bb511 |
697 | } |
698 | #else /* !POINTERRIGOR */ |
699 | big -= previous; |
79072805 |
700 | if (SvCASEFOLD(littlestr)) { /* case insignificant? */ |
de3bb511 |
701 | do { |
988174c1 |
702 | if (big[pos] != first && big[pos] != fold[first]) |
703 | continue; |
a687059c |
704 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
705 | if (x >= bigend) |
706 | return Nullch; |
707 | if (*s++ != *x++ && fold[*(s-1)] != *(x-1)) { |
708 | s--; |
709 | break; |
710 | } |
711 | } |
712 | if (s == littleend) |
a687059c |
713 | return (char *)(big+pos); |
a687059c |
714 | } while ( |
a687059c |
715 | pos += screamnext[pos] /* does this goof up anywhere? */ |
a687059c |
716 | ); |
717 | } |
718 | else { |
719 | do { |
988174c1 |
720 | if (big[pos] != first) |
721 | continue; |
a687059c |
722 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
723 | if (x >= bigend) |
724 | return Nullch; |
725 | if (*s++ != *x++) { |
726 | s--; |
727 | break; |
728 | } |
378cc40b |
729 | } |
a687059c |
730 | if (s == littleend) |
a687059c |
731 | return (char *)(big+pos); |
a687059c |
732 | } while ( |
a687059c |
733 | pos += screamnext[pos] |
a687059c |
734 | ); |
735 | } |
de3bb511 |
736 | #endif /* POINTERRIGOR */ |
8d063cd8 |
737 | return Nullch; |
738 | } |
739 | |
79072805 |
740 | I32 |
741 | ibcmp(a,b,len) |
a0d0e21e |
742 | register U8 *a; |
743 | register U8 *b; |
79072805 |
744 | register I32 len; |
745 | { |
746 | while (len--) { |
747 | if (*a == *b) { |
748 | a++,b++; |
749 | continue; |
750 | } |
751 | if (fold[*a++] == *b++) |
752 | continue; |
753 | return 1; |
754 | } |
755 | return 0; |
756 | } |
757 | |
8d063cd8 |
758 | /* copy a string to a safe spot */ |
759 | |
760 | char * |
a0d0e21e |
761 | savepv(sv) |
79072805 |
762 | char *sv; |
8d063cd8 |
763 | { |
a687059c |
764 | register char *newaddr; |
8d063cd8 |
765 | |
79072805 |
766 | New(902,newaddr,strlen(sv)+1,char); |
767 | (void)strcpy(newaddr,sv); |
8d063cd8 |
768 | return newaddr; |
769 | } |
770 | |
a687059c |
771 | /* same thing but with a known length */ |
772 | |
773 | char * |
a0d0e21e |
774 | savepvn(sv, len) |
79072805 |
775 | char *sv; |
776 | register I32 len; |
a687059c |
777 | { |
778 | register char *newaddr; |
779 | |
780 | New(903,newaddr,len+1,char); |
79072805 |
781 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c |
782 | newaddr[len] = '\0'; /* is now */ |
783 | return newaddr; |
784 | } |
785 | |
a0d0e21e |
786 | #if !defined(I_STDARG) && !defined(I_VARARGS) |
8d063cd8 |
787 | |
8990e307 |
788 | /* |
789 | * Fallback on the old hackers way of doing varargs |
790 | */ |
8d063cd8 |
791 | |
378cc40b |
792 | /*VARARGS1*/ |
7c0587c8 |
793 | char * |
378cc40b |
794 | mess(pat,a1,a2,a3,a4) |
795 | char *pat; |
a687059c |
796 | long a1, a2, a3, a4; |
378cc40b |
797 | { |
798 | char *s; |
f0c5b223 |
799 | char *s_start; |
79072805 |
800 | I32 usermess = strEQ(pat,"%s"); |
801 | SV *tmpstr; |
378cc40b |
802 | |
f0c5b223 |
803 | s = s_start = buf; |
de3bb511 |
804 | if (usermess) { |
8990e307 |
805 | tmpstr = sv_newmortal(); |
79072805 |
806 | sv_setpv(tmpstr, (char*)a1); |
463ee0b2 |
807 | *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1]; |
de3bb511 |
808 | } |
809 | else { |
810 | (void)sprintf(s,pat,a1,a2,a3,a4); |
811 | s += strlen(s); |
812 | } |
813 | |
378cc40b |
814 | if (s[-1] != '\n') { |
2304df62 |
815 | if (dirty) |
816 | strcpy(s, " during global destruction.\n"); |
817 | else { |
818 | if (curcop->cop_line) { |
819 | (void)sprintf(s," at %s line %ld", |
820 | SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line); |
821 | s += strlen(s); |
822 | } |
a0d0e21e |
823 | if (GvIO(last_in_gv) && |
824 | IoLINES(GvIOp(last_in_gv)) ) { |
2304df62 |
825 | (void)sprintf(s,", <%s> %s %ld", |
826 | last_in_gv == argvgv ? "" : GvENAME(last_in_gv), |
827 | strEQ(rs,"\n") ? "line" : "chunk", |
a0d0e21e |
828 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 |
829 | s += strlen(s); |
830 | } |
831 | (void)strcpy(s,".\n"); |
f0c5b223 |
832 | s += 2; |
378cc40b |
833 | } |
de3bb511 |
834 | if (usermess) |
79072805 |
835 | sv_catpv(tmpstr,buf+1); |
378cc40b |
836 | } |
f0c5b223 |
837 | |
838 | if (s - s_start >= sizeof(buf)) { /* Ooops! */ |
839 | if (usermess) |
760ac839 |
840 | PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr)); |
f0c5b223 |
841 | else |
760ac839 |
842 | PerlIO_puts(PerlIO_stderr(), buf); |
843 | PerlIO_puts(PerlIO_stderr(),"panic: message overflow - memory corrupted!\n"); |
f0c5b223 |
844 | my_exit(1); |
845 | } |
de3bb511 |
846 | if (usermess) |
463ee0b2 |
847 | return SvPVX(tmpstr); |
de3bb511 |
848 | else |
849 | return buf; |
378cc40b |
850 | } |
851 | |
8d063cd8 |
852 | /*VARARGS1*/ |
463ee0b2 |
853 | void croak(pat,a1,a2,a3,a4) |
8d063cd8 |
854 | char *pat; |
a687059c |
855 | long a1, a2, a3, a4; |
8d063cd8 |
856 | { |
9f68db38 |
857 | char *tmps; |
de3bb511 |
858 | char *message; |
748a9306 |
859 | HV *stash; |
860 | GV *gv; |
861 | CV *cv; |
8d063cd8 |
862 | |
de3bb511 |
863 | message = mess(pat,a1,a2,a3,a4); |
748a9306 |
864 | if (diehook && (cv = sv_2cv(diehook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
865 | dSP; |
866 | |
867 | PUSHMARK(sp); |
868 | EXTEND(sp, 1); |
869 | PUSHs(sv_2mortal(newSVpv(message,0))); |
870 | PUTBACK; |
871 | perl_call_sv((SV*)cv, G_DISCARD); |
872 | } |
a0d0e21e |
873 | if (in_eval) { |
874 | restartop = die_where(message); |
a5f75d66 |
875 | Siglongjmp(top_env, 3); |
a0d0e21e |
876 | } |
760ac839 |
877 | PerlIO_puts(PerlIO_stderr(),message); |
878 | (void)PerlIO_flush(PerlIO_stderr()); |
38cd9116 |
879 | if (e_tmpname) { |
880 | if (e_fp) { |
760ac839 |
881 | PerlIO_close(e_fp); |
38cd9116 |
882 | e_fp = Nullfp; |
883 | } |
a687059c |
884 | (void)UNLINK(e_tmpname); |
38cd9116 |
885 | Safefree(e_tmpname); |
886 | e_tmpname = Nullch; |
f0c5b223 |
887 | } |
748a9306 |
888 | statusvalue = SHIFTSTATUS(statusvalue); |
889 | #ifdef VMS |
890 | my_exit((U32)vaxc$errno?vaxc$errno:errno?errno:statusvalue?statusvalue:SS$_ABORT); |
891 | #else |
892 | my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); |
893 | #endif |
378cc40b |
894 | } |
895 | |
896 | /*VARARGS1*/ |
7c0587c8 |
897 | void warn(pat,a1,a2,a3,a4) |
378cc40b |
898 | char *pat; |
a687059c |
899 | long a1, a2, a3, a4; |
378cc40b |
900 | { |
de3bb511 |
901 | char *message; |
748a9306 |
902 | SV *sv; |
903 | HV *stash; |
904 | GV *gv; |
905 | CV *cv; |
de3bb511 |
906 | |
907 | message = mess(pat,a1,a2,a3,a4); |
748a9306 |
908 | if (warnhook && (cv = sv_2cv(warnhook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
909 | dSP; |
910 | |
911 | PUSHMARK(sp); |
912 | EXTEND(sp, 1); |
913 | PUSHs(sv_2mortal(newSVpv(message,0))); |
914 | PUTBACK; |
915 | perl_call_sv((SV*)cv, G_DISCARD); |
916 | } |
917 | else { |
760ac839 |
918 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c |
919 | #ifdef LEAKTEST |
748a9306 |
920 | DEBUG_L(xstat()); |
a687059c |
921 | #endif |
760ac839 |
922 | (void)Fflush(PerlIO_stderr()); |
748a9306 |
923 | } |
8d063cd8 |
924 | } |
8990e307 |
925 | |
a0d0e21e |
926 | #else /* !defined(I_STDARG) && !defined(I_VARARGS) */ |
8990e307 |
927 | |
a0d0e21e |
928 | #ifdef I_STDARG |
8990e307 |
929 | char * |
2304df62 |
930 | mess(char *pat, va_list *args) |
a687059c |
931 | #else |
932 | /*VARARGS0*/ |
de3bb511 |
933 | char * |
8990e307 |
934 | mess(pat, args) |
a687059c |
935 | char *pat; |
2304df62 |
936 | va_list *args; |
8990e307 |
937 | #endif |
938 | { |
a687059c |
939 | char *s; |
f0c5b223 |
940 | char *s_start; |
79072805 |
941 | SV *tmpstr; |
942 | I32 usermess; |
d48672a2 |
943 | #ifndef HAS_VPRINTF |
85e6fe83 |
944 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
945 | char *vsprintf(); |
946 | #else |
79072805 |
947 | I32 vsprintf(); |
a687059c |
948 | #endif |
d48672a2 |
949 | #endif |
a687059c |
950 | |
f0c5b223 |
951 | s = s_start = buf; |
de3bb511 |
952 | usermess = strEQ(pat, "%s"); |
953 | if (usermess) { |
8990e307 |
954 | tmpstr = sv_newmortal(); |
2304df62 |
955 | sv_setpv(tmpstr, va_arg(*args, char *)); |
463ee0b2 |
956 | *s++ = SvPVX(tmpstr)[SvCUR(tmpstr)-1]; |
de3bb511 |
957 | } |
958 | else { |
2304df62 |
959 | (void) vsprintf(s,pat,*args); |
de3bb511 |
960 | s += strlen(s); |
961 | } |
2304df62 |
962 | va_end(*args); |
a687059c |
963 | |
a687059c |
964 | if (s[-1] != '\n') { |
2304df62 |
965 | if (dirty) |
966 | strcpy(s, " during global destruction.\n"); |
967 | else { |
968 | if (curcop->cop_line) { |
969 | (void)sprintf(s," at %s line %ld", |
970 | SvPVX(GvSV(curcop->cop_filegv)), (long)curcop->cop_line); |
971 | s += strlen(s); |
972 | } |
c07a80fd |
973 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
974 | bool line_mode = (RsSIMPLE(rs) && |
975 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); |
2304df62 |
976 | (void)sprintf(s,", <%s> %s %ld", |
977 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), |
c07a80fd |
978 | line_mode ? "line" : "chunk", |
a0d0e21e |
979 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 |
980 | s += strlen(s); |
981 | } |
982 | (void)strcpy(s,".\n"); |
f0c5b223 |
983 | s += 2; |
a687059c |
984 | } |
de3bb511 |
985 | if (usermess) |
79072805 |
986 | sv_catpv(tmpstr,buf+1); |
a687059c |
987 | } |
de3bb511 |
988 | |
f0c5b223 |
989 | if (s - s_start >= sizeof(buf)) { /* Ooops! */ |
990 | if (usermess) |
760ac839 |
991 | PerlIO_puts(PerlIO_stderr(), SvPVX(tmpstr)); |
f0c5b223 |
992 | else |
760ac839 |
993 | PerlIO_puts(PerlIO_stderr(), buf); |
994 | PerlIO_puts(PerlIO_stderr(), "panic: message overflow - memory corrupted!\n"); |
f0c5b223 |
995 | my_exit(1); |
996 | } |
de3bb511 |
997 | if (usermess) |
463ee0b2 |
998 | return SvPVX(tmpstr); |
de3bb511 |
999 | else |
1000 | return buf; |
a687059c |
1001 | } |
1002 | |
ecfc5424 |
1003 | #ifdef I_STDARG |
79072805 |
1004 | void |
8990e307 |
1005 | croak(char* pat, ...) |
463ee0b2 |
1006 | #else |
8990e307 |
1007 | /*VARARGS0*/ |
1008 | void |
1009 | croak(pat, va_alist) |
1010 | char *pat; |
1011 | va_dcl |
463ee0b2 |
1012 | #endif |
a687059c |
1013 | { |
1014 | va_list args; |
de3bb511 |
1015 | char *message; |
748a9306 |
1016 | HV *stash; |
1017 | GV *gv; |
1018 | CV *cv; |
a687059c |
1019 | |
a0d0e21e |
1020 | #ifdef I_STDARG |
8990e307 |
1021 | va_start(args, pat); |
1022 | #else |
a687059c |
1023 | va_start(args); |
8990e307 |
1024 | #endif |
2304df62 |
1025 | message = mess(pat, &args); |
a687059c |
1026 | va_end(args); |
748a9306 |
1027 | if (diehook && (cv = sv_2cv(diehook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
1028 | dSP; |
1029 | |
1030 | PUSHMARK(sp); |
1031 | EXTEND(sp, 1); |
1032 | PUSHs(sv_2mortal(newSVpv(message,0))); |
1033 | PUTBACK; |
1034 | perl_call_sv((SV*)cv, G_DISCARD); |
1035 | } |
a0d0e21e |
1036 | if (in_eval) { |
1037 | restartop = die_where(message); |
a5f75d66 |
1038 | Siglongjmp(top_env, 3); |
a0d0e21e |
1039 | } |
760ac839 |
1040 | PerlIO_puts(PerlIO_stderr(),message); |
1041 | (void)PerlIO_flush(PerlIO_stderr()); |
38cd9116 |
1042 | if (e_tmpname) { |
1043 | if (e_fp) { |
760ac839 |
1044 | PerlIO_close(e_fp); |
38cd9116 |
1045 | e_fp = Nullfp; |
1046 | } |
a687059c |
1047 | (void)UNLINK(e_tmpname); |
38cd9116 |
1048 | Safefree(e_tmpname); |
1049 | e_tmpname = Nullch; |
f0c5b223 |
1050 | } |
748a9306 |
1051 | statusvalue = SHIFTSTATUS(statusvalue); |
1052 | #ifdef VMS |
1053 | my_exit((U32)(vaxc$errno?vaxc$errno:(statusvalue?statusvalue:44))); |
1054 | #else |
1055 | my_exit((U32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); |
1056 | #endif |
a687059c |
1057 | } |
1058 | |
8990e307 |
1059 | void |
ecfc5424 |
1060 | #ifdef I_STDARG |
8990e307 |
1061 | warn(char* pat,...) |
463ee0b2 |
1062 | #else |
8990e307 |
1063 | /*VARARGS0*/ |
1064 | warn(pat,va_alist) |
1065 | char *pat; |
1066 | va_dcl |
463ee0b2 |
1067 | #endif |
a687059c |
1068 | { |
1069 | va_list args; |
de3bb511 |
1070 | char *message; |
748a9306 |
1071 | HV *stash; |
1072 | GV *gv; |
1073 | CV *cv; |
a687059c |
1074 | |
a0d0e21e |
1075 | #ifdef I_STDARG |
8990e307 |
1076 | va_start(args, pat); |
1077 | #else |
a687059c |
1078 | va_start(args); |
8990e307 |
1079 | #endif |
2304df62 |
1080 | message = mess(pat, &args); |
a687059c |
1081 | va_end(args); |
1082 | |
748a9306 |
1083 | if (warnhook && (cv = sv_2cv(warnhook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
1084 | dSP; |
1085 | |
1086 | PUSHMARK(sp); |
1087 | EXTEND(sp, 1); |
1088 | PUSHs(sv_2mortal(newSVpv(message,0))); |
1089 | PUTBACK; |
1090 | perl_call_sv((SV*)cv, G_DISCARD); |
1091 | } |
1092 | else { |
760ac839 |
1093 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c |
1094 | #ifdef LEAKTEST |
748a9306 |
1095 | DEBUG_L(xstat()); |
a687059c |
1096 | #endif |
760ac839 |
1097 | (void)PerlIO_flush(PerlIO_stderr()); |
748a9306 |
1098 | } |
a687059c |
1099 | } |
a0d0e21e |
1100 | #endif /* !defined(I_STDARG) && !defined(I_VARARGS) */ |
8d063cd8 |
1101 | |
a0d0e21e |
1102 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
8d063cd8 |
1103 | void |
7c0587c8 |
1104 | my_setenv(nam,val) |
8d063cd8 |
1105 | char *nam, *val; |
1106 | { |
79072805 |
1107 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 |
1108 | |
fe14fcc3 |
1109 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 |
1110 | I32 j; |
1111 | I32 max; |
fe14fcc3 |
1112 | char **tmpenv; |
1113 | |
de3bb511 |
1114 | /*SUPPRESS 530*/ |
fe14fcc3 |
1115 | for (max = i; environ[max]; max++) ; |
1116 | New(901,tmpenv, max+2, char*); |
1117 | for (j=0; j<max; j++) /* copy environment */ |
a0d0e21e |
1118 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 |
1119 | tmpenv[max] = Nullch; |
1120 | environ = tmpenv; /* tell exec where it is now */ |
1121 | } |
a687059c |
1122 | if (!val) { |
1123 | while (environ[i]) { |
1124 | environ[i] = environ[i+1]; |
1125 | i++; |
1126 | } |
1127 | return; |
1128 | } |
8d063cd8 |
1129 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 |
1130 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 |
1131 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1132 | } |
fe14fcc3 |
1133 | else |
1134 | Safefree(environ[i]); |
a687059c |
1135 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 |
1136 | #ifndef MSDOS |
a687059c |
1137 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 |
1138 | #else |
1139 | /* MS-DOS requires environment variable names to be in uppercase */ |
fe14fcc3 |
1140 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1141 | * some utilities and applications may break because they only look |
1142 | * for upper case strings. (Fixed strupr() bug here.)] |
1143 | */ |
1144 | strcpy(environ[i],nam); strupr(environ[i]); |
62b28dd9 |
1145 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1146 | #endif /* MSDOS */ |
8d063cd8 |
1147 | } |
1148 | |
79072805 |
1149 | I32 |
1150 | setenv_getix(nam) |
8d063cd8 |
1151 | char *nam; |
1152 | { |
79072805 |
1153 | register I32 i, len = strlen(nam); |
8d063cd8 |
1154 | |
1155 | for (i = 0; environ[i]; i++) { |
1156 | if (strnEQ(environ[i],nam,len) && environ[i][len] == '=') |
1157 | break; /* strnEQ must come first to avoid */ |
1158 | } /* potential SEGV's */ |
1159 | return i; |
1160 | } |
a0d0e21e |
1161 | #endif /* !VMS */ |
378cc40b |
1162 | |
16d20bd9 |
1163 | #ifdef UNLINK_ALL_VERSIONS |
79072805 |
1164 | I32 |
378cc40b |
1165 | unlnk(f) /* unlink all versions of a file */ |
1166 | char *f; |
1167 | { |
79072805 |
1168 | I32 i; |
378cc40b |
1169 | |
1170 | for (i = 0; unlink(f) >= 0; i++) ; |
1171 | return i ? 0 : -1; |
1172 | } |
1173 | #endif |
1174 | |
85e6fe83 |
1175 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b |
1176 | char * |
7c0587c8 |
1177 | my_bcopy(from,to,len) |
378cc40b |
1178 | register char *from; |
1179 | register char *to; |
79072805 |
1180 | register I32 len; |
378cc40b |
1181 | { |
1182 | char *retval = to; |
1183 | |
7c0587c8 |
1184 | if (from - to >= 0) { |
1185 | while (len--) |
1186 | *to++ = *from++; |
1187 | } |
1188 | else { |
1189 | to += len; |
1190 | from += len; |
1191 | while (len--) |
faf8582f |
1192 | *(--to) = *(--from); |
7c0587c8 |
1193 | } |
378cc40b |
1194 | return retval; |
1195 | } |
ffed7fef |
1196 | #endif |
378cc40b |
1197 | |
7c0587c8 |
1198 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b |
1199 | char * |
7c0587c8 |
1200 | my_bzero(loc,len) |
378cc40b |
1201 | register char *loc; |
79072805 |
1202 | register I32 len; |
378cc40b |
1203 | { |
1204 | char *retval = loc; |
1205 | |
1206 | while (len--) |
1207 | *loc++ = 0; |
1208 | return retval; |
1209 | } |
1210 | #endif |
7c0587c8 |
1211 | |
1212 | #ifndef HAS_MEMCMP |
79072805 |
1213 | I32 |
7c0587c8 |
1214 | my_memcmp(s1,s2,len) |
1215 | register unsigned char *s1; |
1216 | register unsigned char *s2; |
79072805 |
1217 | register I32 len; |
7c0587c8 |
1218 | { |
79072805 |
1219 | register I32 tmp; |
7c0587c8 |
1220 | |
1221 | while (len--) { |
1222 | if (tmp = *s1++ - *s2++) |
1223 | return tmp; |
1224 | } |
1225 | return 0; |
1226 | } |
1227 | #endif /* HAS_MEMCMP */ |
a687059c |
1228 | |
4633a7c4 |
1229 | #if defined(I_STDARG) || defined(I_VARARGS) |
fe14fcc3 |
1230 | #ifndef HAS_VPRINTF |
a687059c |
1231 | |
85e6fe83 |
1232 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1233 | char * |
1234 | #else |
1235 | int |
1236 | #endif |
1237 | vsprintf(dest, pat, args) |
1238 | char *dest, *pat, *args; |
1239 | { |
1240 | FILE fakebuf; |
1241 | |
1242 | fakebuf._ptr = dest; |
1243 | fakebuf._cnt = 32767; |
35c8bce7 |
1244 | #ifndef _IOSTRG |
1245 | #define _IOSTRG 0 |
1246 | #endif |
a687059c |
1247 | fakebuf._flag = _IOWRT|_IOSTRG; |
1248 | _doprnt(pat, args, &fakebuf); /* what a kludge */ |
1249 | (void)putc('\0', &fakebuf); |
85e6fe83 |
1250 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1251 | return(dest); |
1252 | #else |
1253 | return 0; /* perl doesn't use return value */ |
1254 | #endif |
1255 | } |
1256 | |
fe14fcc3 |
1257 | #endif /* HAS_VPRINTF */ |
4633a7c4 |
1258 | #endif /* I_VARARGS || I_STDARGS */ |
a687059c |
1259 | |
1260 | #ifdef MYSWAP |
ffed7fef |
1261 | #if BYTEORDER != 0x4321 |
a687059c |
1262 | short |
748a9306 |
1263 | #ifndef CAN_PROTOTYPE |
a687059c |
1264 | my_swap(s) |
1265 | short s; |
748a9306 |
1266 | #else |
1267 | my_swap(short s) |
1268 | #endif |
a687059c |
1269 | { |
1270 | #if (BYTEORDER & 1) == 0 |
1271 | short result; |
1272 | |
1273 | result = ((s & 255) << 8) + ((s >> 8) & 255); |
1274 | return result; |
1275 | #else |
1276 | return s; |
1277 | #endif |
1278 | } |
1279 | |
1280 | long |
748a9306 |
1281 | #ifndef CAN_PROTOTYPE |
1282 | my_htonl(l) |
a687059c |
1283 | register long l; |
748a9306 |
1284 | #else |
1285 | my_htonl(long l) |
1286 | #endif |
a687059c |
1287 | { |
1288 | union { |
1289 | long result; |
ffed7fef |
1290 | char c[sizeof(long)]; |
a687059c |
1291 | } u; |
1292 | |
ffed7fef |
1293 | #if BYTEORDER == 0x1234 |
a687059c |
1294 | u.c[0] = (l >> 24) & 255; |
1295 | u.c[1] = (l >> 16) & 255; |
1296 | u.c[2] = (l >> 8) & 255; |
1297 | u.c[3] = l & 255; |
1298 | return u.result; |
1299 | #else |
ffed7fef |
1300 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1301 | croak("Unknown BYTEORDER\n"); |
a687059c |
1302 | #else |
79072805 |
1303 | register I32 o; |
1304 | register I32 s; |
a687059c |
1305 | |
ffed7fef |
1306 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1307 | u.c[o & 0xf] = (l >> s) & 255; |
a687059c |
1308 | } |
1309 | return u.result; |
1310 | #endif |
1311 | #endif |
1312 | } |
1313 | |
1314 | long |
748a9306 |
1315 | #ifndef CAN_PROTOTYPE |
1316 | my_ntohl(l) |
a687059c |
1317 | register long l; |
748a9306 |
1318 | #else |
1319 | my_ntohl(long l) |
1320 | #endif |
a687059c |
1321 | { |
1322 | union { |
1323 | long l; |
ffed7fef |
1324 | char c[sizeof(long)]; |
a687059c |
1325 | } u; |
1326 | |
ffed7fef |
1327 | #if BYTEORDER == 0x1234 |
a687059c |
1328 | u.c[0] = (l >> 24) & 255; |
1329 | u.c[1] = (l >> 16) & 255; |
1330 | u.c[2] = (l >> 8) & 255; |
1331 | u.c[3] = l & 255; |
1332 | return u.l; |
1333 | #else |
ffed7fef |
1334 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1335 | croak("Unknown BYTEORDER\n"); |
a687059c |
1336 | #else |
79072805 |
1337 | register I32 o; |
1338 | register I32 s; |
a687059c |
1339 | |
1340 | u.l = l; |
1341 | l = 0; |
ffed7fef |
1342 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1343 | l |= (u.c[o & 0xf] & 255) << s; |
a687059c |
1344 | } |
1345 | return l; |
1346 | #endif |
1347 | #endif |
1348 | } |
1349 | |
ffed7fef |
1350 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 |
1351 | #endif /* MYSWAP */ |
1352 | |
1353 | /* |
1354 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. |
1355 | * If these functions are defined, |
1356 | * the BYTEORDER is neither 0x1234 nor 0x4321. |
1357 | * However, this is not assumed. |
1358 | * -DWS |
1359 | */ |
1360 | |
1361 | #define HTOV(name,type) \ |
1362 | type \ |
1363 | name (n) \ |
1364 | register type n; \ |
1365 | { \ |
1366 | union { \ |
1367 | type value; \ |
1368 | char c[sizeof(type)]; \ |
1369 | } u; \ |
79072805 |
1370 | register I32 i; \ |
1371 | register I32 s; \ |
988174c1 |
1372 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1373 | u.c[i] = (n >> s) & 0xFF; \ |
1374 | } \ |
1375 | return u.value; \ |
1376 | } |
1377 | |
1378 | #define VTOH(name,type) \ |
1379 | type \ |
1380 | name (n) \ |
1381 | register type n; \ |
1382 | { \ |
1383 | union { \ |
1384 | type value; \ |
1385 | char c[sizeof(type)]; \ |
1386 | } u; \ |
79072805 |
1387 | register I32 i; \ |
1388 | register I32 s; \ |
988174c1 |
1389 | u.value = n; \ |
1390 | n = 0; \ |
1391 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1392 | n += (u.c[i] & 0xFF) << s; \ |
1393 | } \ |
1394 | return n; \ |
1395 | } |
1396 | |
1397 | #if defined(HAS_HTOVS) && !defined(htovs) |
1398 | HTOV(htovs,short) |
1399 | #endif |
1400 | #if defined(HAS_HTOVL) && !defined(htovl) |
1401 | HTOV(htovl,long) |
1402 | #endif |
1403 | #if defined(HAS_VTOHS) && !defined(vtohs) |
1404 | VTOH(vtohs,short) |
1405 | #endif |
1406 | #if defined(HAS_VTOHL) && !defined(vtohl) |
1407 | VTOH(vtohl,long) |
1408 | #endif |
a687059c |
1409 | |
1050c9ca |
1410 | #if (!defined(DOSISH) || defined(HAS_FORK)) && !defined(VMS) /* VMS' my_popen() is in |
f0c5b223 |
1411 | VMS.c, same with OS/2. */ |
760ac839 |
1412 | PerlIO * |
79072805 |
1413 | my_popen(cmd,mode) |
a687059c |
1414 | char *cmd; |
1415 | char *mode; |
1416 | { |
1417 | int p[2]; |
79072805 |
1418 | register I32 this, that; |
1419 | register I32 pid; |
1420 | SV *sv; |
1421 | I32 doexec = strNE(cmd,"-"); |
a687059c |
1422 | |
1423 | if (pipe(p) < 0) |
1424 | return Nullfp; |
1425 | this = (*mode == 'w'); |
1426 | that = !this; |
463ee0b2 |
1427 | if (tainting) { |
1428 | if (doexec) { |
1429 | taint_env(); |
1430 | taint_proper("Insecure %s%s", "EXEC"); |
1431 | } |
d48672a2 |
1432 | } |
a687059c |
1433 | while ((pid = (doexec?vfork():fork())) < 0) { |
1434 | if (errno != EAGAIN) { |
1435 | close(p[this]); |
1436 | if (!doexec) |
463ee0b2 |
1437 | croak("Can't fork"); |
a687059c |
1438 | return Nullfp; |
1439 | } |
1440 | sleep(5); |
1441 | } |
1442 | if (pid == 0) { |
79072805 |
1443 | GV* tmpgv; |
1444 | |
a687059c |
1445 | #define THIS that |
1446 | #define THAT this |
1447 | close(p[THAT]); |
1448 | if (p[THIS] != (*mode == 'r')) { |
1449 | dup2(p[THIS], *mode == 'r'); |
1450 | close(p[THIS]); |
1451 | } |
1452 | if (doexec) { |
a0d0e21e |
1453 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 |
1454 | int fd; |
1455 | |
1456 | #ifndef NOFILE |
1457 | #define NOFILE 20 |
1458 | #endif |
d48672a2 |
1459 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
ae986130 |
1460 | close(fd); |
1461 | #endif |
a687059c |
1462 | do_exec(cmd); /* may or may not use the shell */ |
1463 | _exit(1); |
1464 | } |
de3bb511 |
1465 | /*SUPPRESS 560*/ |
85e6fe83 |
1466 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
79072805 |
1467 | sv_setiv(GvSV(tmpgv),(I32)getpid()); |
9f68db38 |
1468 | forkprocess = 0; |
463ee0b2 |
1469 | hv_clear(pidstatus); /* we have no children */ |
a687059c |
1470 | return Nullfp; |
1471 | #undef THIS |
1472 | #undef THAT |
1473 | } |
62b28dd9 |
1474 | do_execfree(); /* free any memory malloced by child on vfork */ |
a687059c |
1475 | close(p[that]); |
62b28dd9 |
1476 | if (p[that] < p[this]) { |
1477 | dup2(p[this], p[that]); |
1478 | close(p[this]); |
1479 | p[this] = p[that]; |
1480 | } |
79072805 |
1481 | sv = *av_fetch(fdpid,p[this],TRUE); |
a0d0e21e |
1482 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
1483 | SvIVX(sv) = pid; |
a687059c |
1484 | forkprocess = pid; |
760ac839 |
1485 | return PerlIO_fdopen(p[this], mode); |
a687059c |
1486 | } |
7c0587c8 |
1487 | #else |
f0c5b223 |
1488 | #if defined(atarist) |
7c0587c8 |
1489 | FILE *popen(); |
760ac839 |
1490 | PerlIO * |
79072805 |
1491 | my_popen(cmd,mode) |
7c0587c8 |
1492 | char *cmd; |
1493 | char *mode; |
1494 | { |
760ac839 |
1495 | /* Needs work for PerlIO ! */ |
1496 | return popen(PerlIO_exportFILE(cmd), mode); |
7c0587c8 |
1497 | } |
1498 | #endif |
1499 | |
1500 | #endif /* !DOSISH */ |
a687059c |
1501 | |
748a9306 |
1502 | #ifdef DUMP_FDS |
79072805 |
1503 | dump_fds(s) |
ae986130 |
1504 | char *s; |
1505 | { |
1506 | int fd; |
1507 | struct stat tmpstatbuf; |
1508 | |
760ac839 |
1509 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 |
1510 | for (fd = 0; fd < 32; fd++) { |
a0d0e21e |
1511 | if (Fstat(fd,&tmpstatbuf) >= 0) |
760ac839 |
1512 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 |
1513 | } |
760ac839 |
1514 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 |
1515 | } |
1516 | #endif |
1517 | |
fe14fcc3 |
1518 | #ifndef HAS_DUP2 |
fec02dd3 |
1519 | int |
a687059c |
1520 | dup2(oldfd,newfd) |
1521 | int oldfd; |
1522 | int newfd; |
1523 | { |
a0d0e21e |
1524 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 |
1525 | if (oldfd == newfd) |
1526 | return oldfd; |
62b28dd9 |
1527 | close(newfd); |
fec02dd3 |
1528 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 |
1529 | #else |
d48672a2 |
1530 | int fdtmp[256]; |
79072805 |
1531 | I32 fdx = 0; |
ae986130 |
1532 | int fd; |
1533 | |
fe14fcc3 |
1534 | if (oldfd == newfd) |
fec02dd3 |
1535 | return oldfd; |
a687059c |
1536 | close(newfd); |
fec02dd3 |
1537 | while ((fd = dup(oldfd)) != newfd && fd >= 0) /* good enough for low fd's */ |
ae986130 |
1538 | fdtmp[fdx++] = fd; |
1539 | while (fdx > 0) |
1540 | close(fdtmp[--fdx]); |
fec02dd3 |
1541 | return fd; |
62b28dd9 |
1542 | #endif |
a687059c |
1543 | } |
1544 | #endif |
1545 | |
1050c9ca |
1546 | #if (!defined(DOSISH) || defined(HAS_FORK)) && !defined(VMS) /* VMS' my_popen() is in VMS.c */ |
79072805 |
1547 | I32 |
1548 | my_pclose(ptr) |
760ac839 |
1549 | PerlIO *ptr; |
a687059c |
1550 | { |
ecfc5424 |
1551 | Signal_t (*hstat)(), (*istat)(), (*qstat)(); |
a687059c |
1552 | int status; |
a0d0e21e |
1553 | SV **svp; |
20188a90 |
1554 | int pid; |
a687059c |
1555 | |
760ac839 |
1556 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 |
1557 | pid = (int)SvIVX(*svp); |
a0d0e21e |
1558 | SvREFCNT_dec(*svp); |
1559 | *svp = &sv_undef; |
760ac839 |
1560 | PerlIO_close(ptr); |
7c0587c8 |
1561 | #ifdef UTS |
1562 | if(kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
1563 | #endif |
a687059c |
1564 | hstat = signal(SIGHUP, SIG_IGN); |
1565 | istat = signal(SIGINT, SIG_IGN); |
1566 | qstat = signal(SIGQUIT, SIG_IGN); |
748a9306 |
1567 | do { |
1568 | pid = wait4pid(pid, &status, 0); |
1569 | } while (pid == -1 && errno == EINTR); |
20188a90 |
1570 | signal(SIGHUP, hstat); |
1571 | signal(SIGINT, istat); |
1572 | signal(SIGQUIT, qstat); |
1573 | return(pid < 0 ? pid : status); |
1574 | } |
4633a7c4 |
1575 | #endif /* !DOSISH */ |
1576 | |
1577 | #if !defined(DOSISH) || defined(OS2) |
79072805 |
1578 | I32 |
20188a90 |
1579 | wait4pid(pid,statusp,flags) |
1580 | int pid; |
1581 | int *statusp; |
1582 | int flags; |
1583 | { |
79072805 |
1584 | SV *sv; |
1585 | SV** svp; |
20188a90 |
1586 | char spid[16]; |
1587 | |
1588 | if (!pid) |
1589 | return -1; |
20188a90 |
1590 | if (pid > 0) { |
1591 | sprintf(spid, "%d", pid); |
79072805 |
1592 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
1593 | if (svp && *svp != &sv_undef) { |
463ee0b2 |
1594 | *statusp = SvIVX(*svp); |
748a9306 |
1595 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
1596 | return pid; |
1597 | } |
1598 | } |
1599 | else { |
79072805 |
1600 | HE *entry; |
20188a90 |
1601 | |
79072805 |
1602 | hv_iterinit(pidstatus); |
1603 | if (entry = hv_iternext(pidstatus)) { |
a0d0e21e |
1604 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 |
1605 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 |
1606 | *statusp = SvIVX(sv); |
20188a90 |
1607 | sprintf(spid, "%d", pid); |
748a9306 |
1608 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
1609 | return pid; |
1610 | } |
1611 | } |
79072805 |
1612 | #ifdef HAS_WAITPID |
1613 | return waitpid(pid,statusp,flags); |
1614 | #else |
a0d0e21e |
1615 | #ifdef HAS_WAIT4 |
1616 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
1617 | #else |
1618 | { |
1619 | I32 result; |
1620 | if (flags) |
1621 | croak("Can't do waitpid with flags"); |
1622 | else { |
1623 | while ((result = wait(statusp)) != pid && pid > 0 && result >= 0) |
1624 | pidgone(result,*statusp); |
1625 | if (result < 0) |
1626 | *statusp = -1; |
1627 | } |
1628 | return result; |
a687059c |
1629 | } |
1630 | #endif |
20188a90 |
1631 | #endif |
a687059c |
1632 | } |
7c0587c8 |
1633 | #endif /* !DOSISH */ |
a687059c |
1634 | |
7c0587c8 |
1635 | void |
de3bb511 |
1636 | /*SUPPRESS 590*/ |
a687059c |
1637 | pidgone(pid,status) |
1638 | int pid; |
1639 | int status; |
1640 | { |
79072805 |
1641 | register SV *sv; |
20188a90 |
1642 | char spid[16]; |
a687059c |
1643 | |
20188a90 |
1644 | sprintf(spid, "%d", pid); |
79072805 |
1645 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e |
1646 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
1647 | SvIVX(sv) = status; |
20188a90 |
1648 | return; |
a687059c |
1649 | } |
1650 | |
1050c9ca |
1651 | #if defined(atarist) || (defined(OS2) && !defined(HAS_FORK)) |
7c0587c8 |
1652 | int pclose(); |
79072805 |
1653 | I32 |
1654 | my_pclose(ptr) |
760ac839 |
1655 | PerlIO *ptr; |
a687059c |
1656 | { |
760ac839 |
1657 | /* Needs work for PerlIO ! */ |
1658 | FILE *f = PerlIO_findFILE(ptr); |
1659 | I32 result = pclose(f); |
1660 | PerlIO_releaseFILE(ptr,f); |
1661 | return result; |
a687059c |
1662 | } |
7c0587c8 |
1663 | #endif |
9f68db38 |
1664 | |
1665 | void |
1666 | repeatcpy(to,from,len,count) |
1667 | register char *to; |
1668 | register char *from; |
79072805 |
1669 | I32 len; |
1670 | register I32 count; |
9f68db38 |
1671 | { |
79072805 |
1672 | register I32 todo; |
9f68db38 |
1673 | register char *frombase = from; |
1674 | |
1675 | if (len == 1) { |
1676 | todo = *from; |
1677 | while (count-- > 0) |
1678 | *to++ = todo; |
1679 | return; |
1680 | } |
1681 | while (count-- > 0) { |
1682 | for (todo = len; todo > 0; todo--) { |
1683 | *to++ = *from++; |
1684 | } |
1685 | from = frombase; |
1686 | } |
1687 | } |
0f85fab0 |
1688 | |
1689 | #ifndef CASTNEGFLOAT |
463ee0b2 |
1690 | U32 |
79072805 |
1691 | cast_ulong(f) |
0f85fab0 |
1692 | double f; |
1693 | { |
1694 | long along; |
1695 | |
27e2fb84 |
1696 | #if CASTFLAGS & 2 |
34de22dd |
1697 | # define BIGDOUBLE 2147483648.0 |
1698 | if (f >= BIGDOUBLE) |
1699 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; |
1700 | #endif |
0f85fab0 |
1701 | if (f >= 0.0) |
1702 | return (unsigned long)f; |
1703 | along = (long)f; |
1704 | return (unsigned long)along; |
1705 | } |
ed6116ce |
1706 | # undef BIGDOUBLE |
1707 | #endif |
1708 | |
1709 | #ifndef CASTI32 |
5d94fbed |
1710 | |
5d94fbed |
1711 | /* Unfortunately, on some systems the cast_uv() function doesn't |
1712 | work with the system-supplied definition of ULONG_MAX. The |
1713 | comparison (f >= ULONG_MAX) always comes out true. It must be a |
1714 | problem with the compiler constant folding. |
1715 | |
1716 | In any case, this workaround should be fine on any two's complement |
1717 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your |
1718 | ccflags. |
1719 | --Andy Dougherty <doughera@lafcol.lafayette.edu> |
1720 | */ |
1721 | #ifndef MY_ULONG_MAX |
760ac839 |
1722 | # define MY_ULONG_MAX ((UV)PERL_LONG_MAX * (UV)2 + (UV)1) |
5d94fbed |
1723 | #endif |
1724 | |
ed6116ce |
1725 | I32 |
1726 | cast_i32(f) |
1727 | double f; |
1728 | { |
760ac839 |
1729 | if (f >= PERL_LONG_MAX) |
1730 | return (I32) PERL_LONG_MAX; |
1731 | if (f <= PERL_LONG_MIN) |
1732 | return (I32) PERL_LONG_MIN; |
ed6116ce |
1733 | return (I32) f; |
1734 | } |
a0d0e21e |
1735 | |
1736 | IV |
1737 | cast_iv(f) |
1738 | double f; |
1739 | { |
760ac839 |
1740 | if (f >= PERL_LONG_MAX) |
1741 | return (IV) PERL_LONG_MAX; |
1742 | if (f <= PERL_LONG_MIN) |
1743 | return (IV) PERL_LONG_MIN; |
a0d0e21e |
1744 | return (IV) f; |
1745 | } |
5d94fbed |
1746 | |
1747 | UV |
1748 | cast_uv(f) |
1749 | double f; |
1750 | { |
1751 | if (f >= MY_ULONG_MAX) |
1752 | return (UV) MY_ULONG_MAX; |
1753 | return (UV) f; |
1754 | } |
1755 | |
0f85fab0 |
1756 | #endif |
62b28dd9 |
1757 | |
fe14fcc3 |
1758 | #ifndef HAS_RENAME |
79072805 |
1759 | I32 |
62b28dd9 |
1760 | same_dirent(a,b) |
1761 | char *a; |
1762 | char *b; |
1763 | { |
93a17b20 |
1764 | char *fa = strrchr(a,'/'); |
1765 | char *fb = strrchr(b,'/'); |
62b28dd9 |
1766 | struct stat tmpstatbuf1; |
1767 | struct stat tmpstatbuf2; |
1768 | #ifndef MAXPATHLEN |
1769 | #define MAXPATHLEN 1024 |
1770 | #endif |
1771 | char tmpbuf[MAXPATHLEN+1]; |
1772 | |
1773 | if (fa) |
1774 | fa++; |
1775 | else |
1776 | fa = a; |
1777 | if (fb) |
1778 | fb++; |
1779 | else |
1780 | fb = b; |
1781 | if (strNE(a,b)) |
1782 | return FALSE; |
1783 | if (fa == a) |
6eb13c3b |
1784 | strcpy(tmpbuf,"."); |
62b28dd9 |
1785 | else |
1786 | strncpy(tmpbuf, a, fa - a); |
a0d0e21e |
1787 | if (Stat(tmpbuf, &tmpstatbuf1) < 0) |
62b28dd9 |
1788 | return FALSE; |
1789 | if (fb == b) |
6eb13c3b |
1790 | strcpy(tmpbuf,"."); |
62b28dd9 |
1791 | else |
1792 | strncpy(tmpbuf, b, fb - b); |
a0d0e21e |
1793 | if (Stat(tmpbuf, &tmpstatbuf2) < 0) |
62b28dd9 |
1794 | return FALSE; |
1795 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && |
1796 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; |
1797 | } |
fe14fcc3 |
1798 | #endif /* !HAS_RENAME */ |
1799 | |
1800 | unsigned long |
79072805 |
1801 | scan_oct(start, len, retlen) |
fe14fcc3 |
1802 | char *start; |
79072805 |
1803 | I32 len; |
1804 | I32 *retlen; |
fe14fcc3 |
1805 | { |
1806 | register char *s = start; |
1807 | register unsigned long retval = 0; |
1808 | |
748a9306 |
1809 | while (len && *s >= '0' && *s <= '7') { |
fe14fcc3 |
1810 | retval <<= 3; |
1811 | retval |= *s++ - '0'; |
748a9306 |
1812 | len--; |
fe14fcc3 |
1813 | } |
748a9306 |
1814 | if (dowarn && len && (*s == '8' || *s == '9')) |
1815 | warn("Illegal octal digit ignored"); |
fe14fcc3 |
1816 | *retlen = s - start; |
1817 | return retval; |
1818 | } |
1819 | |
1820 | unsigned long |
79072805 |
1821 | scan_hex(start, len, retlen) |
fe14fcc3 |
1822 | char *start; |
79072805 |
1823 | I32 len; |
1824 | I32 *retlen; |
fe14fcc3 |
1825 | { |
1826 | register char *s = start; |
1827 | register unsigned long retval = 0; |
1828 | char *tmp; |
1829 | |
93a17b20 |
1830 | while (len-- && *s && (tmp = strchr(hexdigit, *s))) { |
fe14fcc3 |
1831 | retval <<= 4; |
1832 | retval |= (tmp - hexdigit) & 15; |
1833 | s++; |
1834 | } |
1835 | *retlen = s - start; |
1836 | return retval; |
1837 | } |
760ac839 |
1838 | |
1839 | |
1840 | #ifdef HUGE_VAL |
1841 | /* |
1842 | * This hack is to force load of "huge" support from libm.a |
1843 | * So it is in perl for (say) POSIX to use. |
1844 | * Needed for SunOS with Sun's 'acc' for example. |
1845 | */ |
1846 | double |
1847 | Perl_huge() |
1848 | { |
1849 | return HUGE_VAL; |
1850 | } |
1851 | #endif |