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