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bdb7fd9f RGS |
1 | /* Filename: Bzip2.xs |
2 | * Author : Paul Marquess, <pmqs@cpan.org> | |
3 | * Created : 5th October 2005 | |
4 | * Version : 2.000 | |
5 | * | |
9b5fd1d4 | 6 | * Copyright (c) 2005-2010 Paul Marquess. All rights reserved. |
bdb7fd9f RGS |
7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the same terms as Perl itself. | |
9 | * | |
10 | */ | |
11 | ||
14c0f22a | 12 | #define PERL_NO_GET_CONTEXT |
bdb7fd9f RGS |
13 | #include "EXTERN.h" |
14 | #include "perl.h" | |
15 | #include "XSUB.h" | |
16 | ||
17 | #include "bzlib.h" | |
18 | ||
19 | #ifdef USE_PPPORT_H | |
20 | # define NEED_sv_2pv_nolen | |
21 | # include "ppport.h" | |
22 | #endif | |
23 | ||
24 | #if PERL_REVISION == 5 && (PERL_VERSION < 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) | |
25 | ||
26 | # ifdef SvPVbyte_force | |
27 | # undef SvPVbyte_force | |
28 | # endif | |
29 | ||
30 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) | |
31 | ||
32 | #endif | |
33 | ||
34 | #ifndef SvPVbyte_nolen | |
35 | # define SvPVbyte_nolen SvPV_nolen | |
36 | #endif | |
37 | ||
38 | ||
39 | #if PERL_REVISION == 5 && (PERL_VERSION >= 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) | |
40 | # define UTF8_AVAILABLE | |
41 | #endif | |
42 | ||
43 | typedef int DualType ; | |
44 | typedef int int_undef ; | |
45 | ||
46 | typedef unsigned long uLong; | |
47 | typedef unsigned int uInt; | |
48 | ||
49 | typedef struct di_stream { | |
50 | int flags ; | |
51 | #define FLAG_APPEND_OUTPUT 1 | |
52 | #define FLAG_CONSUME_INPUT 8 | |
ea6efd2c | 53 | #define FLAG_LIMIT_OUTPUT 16 |
bdb7fd9f RGS |
54 | bz_stream stream; |
55 | uInt bufsize; | |
56 | int last_error ; | |
57 | uLong bytesInflated ; | |
58 | uLong compressedBytes ; | |
59 | uLong uncompressedBytes ; | |
60 | ||
61 | } di_stream; | |
62 | ||
63 | typedef di_stream * deflateStream ; | |
64 | typedef di_stream * Compress__Raw__Bzip2 ; | |
65 | ||
66 | typedef di_stream * inflateStream ; | |
67 | typedef di_stream * Compress__Raw__Bunzip2 ; | |
68 | ||
69 | #define COMPRESS_CLASS "Compress::Raw::Bzip2" | |
70 | #define UNCOMPRESS_CLASS "Compress::Raw::Bunzip2" | |
71 | ||
72 | #define ZMALLOC(to, typ) ((to = (typ *)safemalloc(sizeof(typ))), \ | |
73 | Zero(to,1,typ)) | |
74 | ||
75 | ||
76 | /* static const char * const my_z_errmsg[] = { */ | |
77 | static const char my_z_errmsg[][32] = { | |
78 | "End of Stream", /* BZ_STREAM_END 4 */ | |
79 | "Finish OK", /* BZ_FINISH_OK 3 */ | |
80 | "Flush OK", /* BZ_FLUSH_OK 2 */ | |
81 | "Run OK", /* BZ_RUN_OK 1 */ | |
82 | "", /* BZ_OK 0 */ | |
83 | "Sequence Error", /* BZ_SEQUENCE_ERROR (-1) */ | |
84 | "Param Error", /* BZ_PARAM_ERROR (-2) */ | |
85 | "Memory Error", /* BZ_MEM_ERROR (-3) */ | |
86 | "Data Error", /* BZ_DATA_ERROR (-4) */ | |
87 | "Magic Error", /* BZ_DATA_ERROR_MAGIC (-5) */ | |
88 | "IO Error", /* BZ_IO_ERROR (-6) */ | |
89 | "Unexpected EOF", /* BZ_UNEXPECTED_EOF (-7) */ | |
90 | "Output Buffer Full", /* BZ_OUTBUFF_FULL (-8) */ | |
91 | "Config Error", /* BZ_CONFIG_ERROR (-9) */ | |
92 | ""}; | |
93 | ||
94 | #define setDUALstatus(var, err) \ | |
95 | sv_setnv(var, (double)err) ; \ | |
96 | sv_setpv(var, ((err) ? GetErrorString(err) : "")) ; \ | |
97 | SvNOK_on(var); | |
98 | ||
99 | ||
100 | #if defined(__SYMBIAN32__) | |
101 | # define NO_WRITEABLE_DATA | |
102 | #endif | |
103 | ||
9e7c8eb7 | 104 | /* Set TRACE_DEFAULT to a non-zero value to enable tracing */ |
bdb7fd9f RGS |
105 | #define TRACE_DEFAULT 0 |
106 | ||
9e7c8eb7 | 107 | #if defined(NO_WRITEABLE_DATA) || TRACE_DEFAULT == 0 |
bdb7fd9f RGS |
108 | # define trace TRACE_DEFAULT |
109 | #else | |
110 | static int trace = TRACE_DEFAULT ; | |
111 | #endif | |
112 | ||
113 | /* Dodge PerlIO hiding of these functions. */ | |
114 | #undef printf | |
115 | ||
116 | #if 1 | |
117 | #define getInnerObject(x) (*av_fetch((AV*)SvRV(x), 0, FALSE)) | |
118 | #else | |
119 | #define getInnerObject(x) ((SV*)SvRV(sv)) | |
120 | #endif | |
121 | ||
122 | #ifdef BZ_NO_STDIO | |
123 | void bz_internal_error(int errorcode) | |
124 | { | |
125 | croak("bz_internal_error %d\n", errorcode); | |
126 | } | |
127 | #endif | |
128 | ||
129 | static char * | |
130 | #ifdef CAN_PROTOTYPE | |
131 | GetErrorString(int error_no) | |
132 | #else | |
133 | GetErrorString(error_no) | |
134 | int error_no ; | |
135 | #endif | |
136 | { | |
9e7c8eb7 | 137 | return(char*) my_z_errmsg[4 - error_no]; |
bdb7fd9f RGS |
138 | } |
139 | ||
140 | static void | |
141 | #ifdef CAN_PROTOTYPE | |
142 | DispHex(void * ptr, int length) | |
143 | #else | |
144 | DispHex(ptr, length) | |
145 | void * ptr; | |
146 | int length; | |
147 | #endif | |
148 | { | |
149 | char * p = (char*)ptr; | |
150 | int i; | |
151 | for (i = 0; i < length; ++i) { | |
152 | printf(" %02x", 0xFF & *(p+i)); | |
153 | } | |
154 | } | |
155 | ||
156 | ||
157 | static void | |
158 | #ifdef CAN_PROTOTYPE | |
3383dc2c | 159 | DispStream(di_stream * s, const char * message) |
bdb7fd9f RGS |
160 | #else |
161 | DispStream(s, message) | |
162 | di_stream * s; | |
3383dc2c | 163 | const char * message; |
bdb7fd9f RGS |
164 | #endif |
165 | { | |
166 | ||
167 | #if 0 | |
168 | if (! trace) | |
169 | return ; | |
170 | #endif | |
171 | ||
172 | #define EnDis(f) (s->flags & f ? "Enabled" : "Disabled") | |
173 | ||
174 | printf("DispStream 0x%p", s) ; | |
175 | if (message) | |
ea6efd2c | 176 | printf(" - %s \n", message) ; |
bdb7fd9f RGS |
177 | printf("\n") ; |
178 | ||
179 | if (!s) { | |
180 | printf(" stream pointer is NULL\n"); | |
181 | } | |
182 | else { | |
183 | printf(" stream 0x%p\n", &(s->stream)); | |
184 | printf(" opaque 0x%p\n", s->stream.opaque); | |
ea6efd2c | 185 | printf(" state 0x%p\n", s->stream.state ); |
bdb7fd9f RGS |
186 | printf(" next_in 0x%p", s->stream.next_in); |
187 | if (s->stream.next_in){ | |
188 | printf(" =>"); | |
189 | DispHex(s->stream.next_in, 4); | |
190 | } | |
191 | printf("\n"); | |
192 | ||
193 | printf(" next_out 0x%p", s->stream.next_out); | |
194 | if (s->stream.next_out){ | |
195 | printf(" =>"); | |
196 | DispHex(s->stream.next_out, 4); | |
197 | } | |
198 | printf("\n"); | |
199 | ||
200 | printf(" avail_in %lu\n", (unsigned long)s->stream.avail_in); | |
201 | printf(" avail_out %lu\n", (unsigned long)s->stream.avail_out); | |
202 | printf(" bufsize %lu\n", (unsigned long)s->bufsize); | |
ea6efd2c MB |
203 | printf(" total_in_lo32 %u\n", s->stream.total_in_lo32); |
204 | printf(" total_in_hi32 %u\n", s->stream.total_in_hi32); | |
205 | printf(" total_out_lo32 %u\n", s->stream.total_out_lo32); | |
206 | printf(" total_out_hi32 %u\n", s->stream.total_out_hi32); | |
bdb7fd9f RGS |
207 | printf(" flags 0x%x\n", s->flags); |
208 | printf(" APPEND %s\n", EnDis(FLAG_APPEND_OUTPUT)); | |
209 | printf(" CONSUME %s\n", EnDis(FLAG_CONSUME_INPUT)); | |
ea6efd2c | 210 | printf(" LIMIT %s\n", EnDis(FLAG_LIMIT_OUTPUT)); |
bdb7fd9f RGS |
211 | |
212 | printf("\n"); | |
213 | ||
214 | } | |
215 | } | |
216 | ||
217 | static di_stream * | |
218 | #ifdef CAN_PROTOTYPE | |
219 | InitStream(void) | |
220 | #else | |
221 | InitStream() | |
222 | #endif | |
223 | { | |
224 | di_stream *s ; | |
225 | ||
226 | ZMALLOC(s, di_stream) ; | |
227 | ||
228 | return s ; | |
229 | ||
230 | } | |
231 | ||
232 | static void | |
233 | #ifdef CAN_PROTOTYPE | |
234 | PostInitStream(di_stream * s, int flags) | |
235 | #else | |
236 | PostInitStream(s, flags) | |
237 | di_stream *s ; | |
238 | int flags ; | |
239 | #endif | |
240 | { | |
241 | s->bufsize = 1024 * 16 ; | |
242 | s->last_error = 0 ; | |
243 | s->flags = flags ; | |
244 | } | |
245 | ||
246 | ||
247 | static SV* | |
248 | #ifdef CAN_PROTOTYPE | |
249 | deRef(SV * sv, const char * string) | |
250 | #else | |
251 | deRef(sv, string) | |
252 | SV * sv ; | |
253 | char * string; | |
254 | #endif | |
255 | { | |
256 | dTHX; | |
257 | SvGETMAGIC(sv); | |
258 | ||
259 | if (SvROK(sv)) { | |
260 | sv = SvRV(sv) ; | |
261 | SvGETMAGIC(sv); | |
262 | switch(SvTYPE(sv)) { | |
263 | case SVt_PVAV: | |
264 | case SVt_PVHV: | |
265 | case SVt_PVCV: | |
266 | croak("%s: buffer parameter is not a SCALAR reference", string); | |
776304fb PM |
267 | default: |
268 | break; | |
bdb7fd9f RGS |
269 | } |
270 | if (SvROK(sv)) | |
271 | croak("%s: buffer parameter is a reference to a reference", string) ; | |
272 | } | |
273 | ||
4bac9ae4 CS |
274 | if (!SvOK(sv)) |
275 | sv = sv_2mortal(newSVpv("", 0)); | |
bdb7fd9f RGS |
276 | |
277 | return sv ; | |
278 | } | |
279 | ||
280 | static SV* | |
281 | #ifdef CAN_PROTOTYPE | |
282 | deRef_l(SV * sv, const char * string) | |
283 | #else | |
284 | deRef_l(sv, string) | |
285 | SV * sv ; | |
286 | char * string ; | |
287 | #endif | |
288 | { | |
289 | dTHX; | |
290 | bool wipe = 0 ; | |
4bac9ae4 | 291 | STRLEN na; |
bdb7fd9f RGS |
292 | |
293 | SvGETMAGIC(sv); | |
294 | wipe = ! SvOK(sv) ; | |
295 | ||
296 | if (SvROK(sv)) { | |
297 | sv = SvRV(sv) ; | |
298 | SvGETMAGIC(sv); | |
299 | wipe = ! SvOK(sv) ; | |
300 | ||
301 | switch(SvTYPE(sv)) { | |
302 | case SVt_PVAV: | |
303 | case SVt_PVHV: | |
304 | case SVt_PVCV: | |
305 | croak("%s: buffer parameter is not a SCALAR reference", string); | |
776304fb PM |
306 | default: |
307 | break; | |
bdb7fd9f RGS |
308 | } |
309 | if (SvROK(sv)) | |
310 | croak("%s: buffer parameter is a reference to a reference", string) ; | |
311 | } | |
312 | ||
313 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) | |
314 | croak("%s: buffer parameter is read-only", string); | |
315 | ||
9d90bd60 PM |
316 | SvUPGRADE(sv, SVt_PV); |
317 | ||
bdb7fd9f | 318 | if (wipe) |
9d90bd60 | 319 | sv_setpv(sv, "") ; |
4bac9ae4 CS |
320 | else |
321 | (void)SvPVbyte_force(sv, na) ; | |
9d90bd60 | 322 | |
bdb7fd9f RGS |
323 | return sv ; |
324 | } | |
325 | ||
326 | ||
327 | #include "constants.h" | |
328 | ||
329 | MODULE = Compress::Raw::Bzip2 PACKAGE = Compress::Raw::Bzip2 PREFIX = Zip_ | |
330 | ||
331 | REQUIRE: 1.924 | |
332 | PROTOTYPES: DISABLE | |
333 | ||
334 | INCLUDE: constants.xs | |
335 | ||
336 | BOOT: | |
337 | /* Check this version of bzip2 is == 1 */ | |
338 | if (BZ2_bzlibVersion()[0] != '1') | |
339 | croak(COMPRESS_CLASS " needs bzip2 version 1.x, you have %s\n", BZ2_bzlibVersion()) ; | |
340 | ||
341 | ||
342 | MODULE = Compress::Raw::Bzip2 PACKAGE = Compress::Raw::Bzip2 | |
343 | ||
344 | #define bzlibversion() BZ2_bzlibVersion() | |
345 | const char * | |
346 | bzlibversion() | |
347 | ||
348 | void | |
c14f59c3 PM |
349 | new(className, appendOut=1, blockSize100k=1, workfactor=0, verbosity=0) |
350 | const char * className | |
bdb7fd9f RGS |
351 | int appendOut |
352 | int blockSize100k | |
353 | int workfactor | |
354 | int verbosity | |
355 | PPCODE: | |
356 | { | |
357 | int err ; | |
358 | deflateStream s ; | |
359 | #if 0 | |
360 | /* if (trace) */ | |
361 | warn("in Compress::Raw::Bzip2::_new(items=%d,appendOut=%d, blockSize100k=%d, workfactor=%d, verbosity=%d\n", | |
362 | items, appendOut, blockSize100k, workfactor, verbosity); | |
363 | #endif | |
364 | if ((s = InitStream() )) { | |
365 | ||
366 | err = BZ2_bzCompressInit ( &(s->stream), | |
367 | blockSize100k, | |
368 | verbosity, | |
369 | workfactor ); | |
370 | ||
371 | if (err != BZ_OK) { | |
372 | Safefree(s) ; | |
373 | s = NULL ; | |
374 | } | |
375 | else { | |
376 | int flags = 0 ; | |
377 | if (appendOut) | |
378 | flags |= FLAG_APPEND_OUTPUT; | |
379 | PostInitStream(s, appendOut ? FLAG_APPEND_OUTPUT :0) ; | |
380 | } | |
381 | } | |
382 | else | |
383 | err = BZ_MEM_ERROR ; | |
384 | ||
385 | { | |
c14f59c3 | 386 | SV* obj = sv_setref_pv(sv_newmortal(), className, (void*)s); |
bdb7fd9f RGS |
387 | XPUSHs(obj); |
388 | } | |
389 | if(0) | |
390 | { | |
391 | SV* obj = sv_2mortal(newSViv(PTR2IV(s))) ; | |
392 | XPUSHs(obj); | |
393 | } | |
394 | if (GIMME == G_ARRAY) { | |
395 | SV * sv = sv_2mortal(newSViv(err)) ; | |
396 | setDUALstatus(sv, err); | |
397 | XPUSHs(sv) ; | |
398 | } | |
399 | } | |
400 | ||
401 | MODULE = Compress::Raw::Bunzip2 PACKAGE = Compress::Raw::Bunzip2 | |
402 | ||
403 | void | |
ea6efd2c | 404 | new(className, appendOut=1 , consume=1, small=0, verbosity=0, limitOutput=0) |
c14f59c3 | 405 | const char* className |
bdb7fd9f RGS |
406 | int appendOut |
407 | int consume | |
408 | int small | |
409 | int verbosity | |
ea6efd2c | 410 | int limitOutput |
bdb7fd9f RGS |
411 | PPCODE: |
412 | { | |
413 | int err = BZ_OK ; | |
414 | inflateStream s ; | |
415 | #if 0 | |
416 | if (trace) | |
417 | warn("in _inflateInit(windowBits=%d, bufsize=%lu, dictionary=%lu\n", | |
418 | windowBits, bufsize, (unsigned long)SvCUR(dictionary)) ; | |
419 | #endif | |
420 | if ((s = InitStream() )) { | |
421 | ||
422 | err = BZ2_bzDecompressInit (&(s->stream), verbosity, small); | |
423 | if (err != BZ_OK) { | |
424 | Safefree(s) ; | |
425 | s = NULL ; | |
426 | } | |
427 | if (s) { | |
428 | int flags = 0; | |
429 | if (appendOut) | |
430 | flags |= FLAG_APPEND_OUTPUT; | |
431 | if (consume) | |
432 | flags |= FLAG_CONSUME_INPUT; | |
ea6efd2c MB |
433 | if (limitOutput) |
434 | flags |= (FLAG_LIMIT_OUTPUT|FLAG_CONSUME_INPUT); | |
bdb7fd9f RGS |
435 | PostInitStream(s, flags) ; |
436 | } | |
437 | } | |
438 | else | |
439 | err = BZ_MEM_ERROR ; | |
440 | ||
441 | { | |
c14f59c3 | 442 | SV* obj = sv_setref_pv(sv_newmortal(), className, (void*)s); |
bdb7fd9f RGS |
443 | XPUSHs(obj); |
444 | } | |
445 | if (0) | |
446 | { | |
447 | SV* obj = sv_2mortal(newSViv(PTR2IV(s))) ; | |
448 | XPUSHs(obj); | |
449 | } | |
450 | if (GIMME == G_ARRAY) { | |
451 | SV * sv = sv_2mortal(newSViv(err)) ; | |
452 | setDUALstatus(sv, err); | |
453 | XPUSHs(sv) ; | |
454 | } | |
455 | } | |
456 | ||
457 | ||
458 | ||
459 | MODULE = Compress::Raw::Bzip2 PACKAGE = Compress::Raw::Bzip2 | |
460 | ||
461 | void | |
462 | DispStream(s, message=NULL) | |
463 | Compress::Raw::Bzip2 s | |
3383dc2c | 464 | const char * message |
bdb7fd9f RGS |
465 | |
466 | DualType | |
467 | bzdeflate (s, buf, output) | |
468 | Compress::Raw::Bzip2 s | |
469 | SV * buf | |
470 | SV * output | |
471 | uInt cur_length = NO_INIT | |
472 | uInt increment = NO_INIT | |
473 | int RETVAL = 0; | |
474 | uInt bufinc = NO_INIT | |
fdaa82e4 | 475 | STRLEN origlen = NO_INIT |
bdb7fd9f RGS |
476 | CODE: |
477 | bufinc = s->bufsize; | |
478 | ||
479 | /* If the input buffer is a reference, dereference it */ | |
480 | buf = deRef(buf, "deflate") ; | |
481 | ||
482 | /* initialise the input buffer */ | |
483 | #ifdef UTF8_AVAILABLE | |
484 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) | |
485 | croak("Wide character in " COMPRESS_CLASS "::bzdeflate input parameter"); | |
9d90bd60 | 486 | #endif |
fdaa82e4 CBW |
487 | s->stream.next_in = (char*)SvPV_nomg(buf, origlen) ; |
488 | s->stream.avail_in = origlen; | |
bdb7fd9f RGS |
489 | |
490 | /* and retrieve the output buffer */ | |
491 | output = deRef_l(output, "deflate") ; | |
492 | #ifdef UTF8_AVAILABLE | |
493 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
494 | croak("Wide character in " COMPRESS_CLASS "::bzdeflate output parameter"); | |
495 | #endif | |
9d90bd60 PM |
496 | |
497 | if((s->flags & FLAG_APPEND_OUTPUT) != FLAG_APPEND_OUTPUT) { | |
bdb7fd9f | 498 | SvCUR_set(output, 0); |
9d90bd60 PM |
499 | /* sv_setpvn(output, "", 0); */ |
500 | } | |
bdb7fd9f | 501 | cur_length = SvCUR(output) ; |
9d90bd60 | 502 | s->stream.next_out = (char*) SvPVX(output) + cur_length; |
bdb7fd9f RGS |
503 | increment = SvLEN(output) - cur_length; |
504 | s->stream.avail_out = increment; | |
505 | while (s->stream.avail_in != 0) { | |
506 | ||
507 | if (s->stream.avail_out == 0) { | |
508 | /* out of space in the output buffer so make it bigger */ | |
9d90bd60 | 509 | s->stream.next_out = Sv_Grow(output, SvLEN(output) + bufinc) ; |
bdb7fd9f | 510 | cur_length += increment ; |
9d90bd60 | 511 | s->stream.next_out += cur_length ; |
bdb7fd9f RGS |
512 | increment = bufinc ; |
513 | s->stream.avail_out = increment; | |
514 | bufinc *= 2 ; | |
515 | } | |
516 | ||
517 | RETVAL = BZ2_bzCompress(&(s->stream), BZ_RUN); | |
518 | if (RETVAL != BZ_RUN_OK) | |
519 | break; | |
520 | } | |
521 | ||
522 | s->compressedBytes += cur_length + increment - s->stream.avail_out ; | |
fdaa82e4 | 523 | s->uncompressedBytes += origlen - s->stream.avail_in ; |
bdb7fd9f RGS |
524 | |
525 | s->last_error = RETVAL ; | |
526 | if (RETVAL == BZ_RUN_OK) { | |
527 | SvPOK_only(output); | |
528 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; | |
529 | SvSETMAGIC(output); | |
530 | } | |
531 | OUTPUT: | |
532 | RETVAL | |
533 | ||
534 | ||
535 | void | |
536 | DESTROY(s) | |
537 | Compress::Raw::Bzip2 s | |
538 | CODE: | |
539 | BZ2_bzCompressEnd(&s->stream) ; | |
540 | Safefree(s) ; | |
541 | ||
542 | ||
543 | DualType | |
544 | bzclose(s, output) | |
545 | Compress::Raw::Bzip2 s | |
546 | SV * output | |
547 | uInt cur_length = NO_INIT | |
548 | uInt increment = NO_INIT | |
549 | uInt bufinc = NO_INIT | |
550 | CODE: | |
551 | bufinc = s->bufsize; | |
552 | ||
553 | s->stream.avail_in = 0; /* should be zero already anyway */ | |
554 | ||
555 | /* retrieve the output buffer */ | |
556 | output = deRef_l(output, "close") ; | |
557 | #ifdef UTF8_AVAILABLE | |
558 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
559 | croak("Wide character in " COMPRESS_CLASS "::bzclose input parameter"); | |
560 | #endif | |
9d90bd60 | 561 | if(! s->flags & FLAG_APPEND_OUTPUT) { |
bdb7fd9f | 562 | SvCUR_set(output, 0); |
9d90bd60 PM |
563 | /* sv_setpvn(output, "", 0); */ |
564 | } | |
bdb7fd9f | 565 | cur_length = SvCUR(output) ; |
9d90bd60 | 566 | s->stream.next_out = (char*) SvPVX(output) + cur_length; |
bdb7fd9f RGS |
567 | increment = SvLEN(output) - cur_length; |
568 | s->stream.avail_out = increment; | |
569 | ||
570 | for (;;) { | |
571 | if (s->stream.avail_out == 0) { | |
572 | /* consumed all the available output, so extend it */ | |
9d90bd60 | 573 | s->stream.next_out = Sv_Grow(output, SvLEN(output) + bufinc) ; |
bdb7fd9f | 574 | cur_length += increment ; |
9d90bd60 | 575 | s->stream.next_out += cur_length ; |
bdb7fd9f RGS |
576 | increment = bufinc ; |
577 | s->stream.avail_out = increment; | |
578 | bufinc *= 2 ; | |
579 | } | |
580 | RETVAL = BZ2_bzCompress(&(s->stream), BZ_FINISH); | |
581 | ||
582 | /* deflate has finished flushing only when it hasn't used up | |
583 | * all the available space in the output buffer: | |
584 | */ | |
585 | /* if (s->stream.avail_out != 0 || RETVAL < 0 ) */ | |
586 | if (RETVAL == BZ_STREAM_END || RETVAL < 0 ) | |
587 | break; | |
588 | } | |
589 | ||
590 | /* RETVAL = (RETVAL == BZ_STREAM_END ? BZ_OK : RETVAL) ; */ | |
591 | s->last_error = RETVAL ; | |
592 | ||
593 | s->compressedBytes += cur_length + increment - s->stream.avail_out ; | |
594 | ||
595 | if (RETVAL == BZ_STREAM_END) { | |
596 | SvPOK_only(output); | |
597 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; | |
598 | SvSETMAGIC(output); | |
599 | } | |
600 | OUTPUT: | |
601 | RETVAL | |
602 | ||
603 | ||
604 | DualType | |
605 | bzflush(s, output) | |
606 | Compress::Raw::Bzip2 s | |
607 | SV * output | |
608 | uInt cur_length = NO_INIT | |
609 | uInt increment = NO_INIT | |
610 | uInt bufinc = NO_INIT | |
611 | CODE: | |
612 | bufinc = s->bufsize; | |
613 | ||
614 | s->stream.avail_in = 0; /* should be zero already anyway */ | |
615 | ||
616 | /* retrieve the output buffer */ | |
617 | output = deRef_l(output, "close") ; | |
618 | #ifdef UTF8_AVAILABLE | |
619 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
620 | croak("Wide character in " COMPRESS_CLASS "::bzflush input parameter"); | |
621 | #endif | |
9d90bd60 | 622 | if(! s->flags & FLAG_APPEND_OUTPUT) { |
bdb7fd9f | 623 | SvCUR_set(output, 0); |
9d90bd60 PM |
624 | /* sv_setpvn(output, "", 0); */ |
625 | } | |
bdb7fd9f | 626 | cur_length = SvCUR(output) ; |
9d90bd60 | 627 | s->stream.next_out = (char*) SvPVX(output) + cur_length; |
bdb7fd9f RGS |
628 | increment = SvLEN(output) - cur_length; |
629 | s->stream.avail_out = increment; | |
630 | ||
631 | for (;;) { | |
632 | if (s->stream.avail_out == 0) { | |
633 | /* consumed all the available output, so extend it */ | |
9d90bd60 | 634 | s->stream.next_out = Sv_Grow(output, SvLEN(output) + bufinc) ; |
bdb7fd9f | 635 | cur_length += increment ; |
9d90bd60 | 636 | s->stream.next_out += cur_length ; |
bdb7fd9f RGS |
637 | increment = bufinc ; |
638 | s->stream.avail_out = increment; | |
639 | bufinc *= 2 ; | |
640 | } | |
641 | RETVAL = BZ2_bzCompress(&(s->stream), BZ_FLUSH); | |
642 | ||
643 | if (RETVAL == BZ_RUN_OK || RETVAL < 0) | |
644 | break; | |
645 | ||
646 | /* deflate has finished flushing only when it hasn't used up | |
647 | * all the available space in the output buffer: | |
648 | */ | |
649 | /* RETVAL == if (s->stream.avail_out != 0 || RETVAL < 0 ) | |
650 | break; */ | |
651 | } | |
652 | ||
653 | /* RETVAL = (RETVAL == BZ_STREAM_END ? BZ_OK : RETVAL) ; */ | |
654 | s->last_error = RETVAL ; | |
655 | ||
656 | s->compressedBytes += cur_length + increment - s->stream.avail_out ; | |
657 | ||
658 | if (RETVAL == BZ_RUN_OK) { | |
659 | SvPOK_only(output); | |
660 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; | |
661 | SvSETMAGIC(output); | |
662 | } | |
663 | OUTPUT: | |
664 | RETVAL | |
665 | ||
666 | uLong | |
667 | total_in_lo32(s) | |
668 | Compress::Raw::Bzip2 s | |
669 | CODE: | |
670 | RETVAL = s->stream.total_in_lo32 ; | |
671 | OUTPUT: | |
672 | RETVAL | |
673 | ||
674 | uLong | |
675 | total_out_lo32(s) | |
676 | Compress::Raw::Bzip2 s | |
677 | CODE: | |
678 | RETVAL = s->stream.total_out_lo32 ; | |
679 | OUTPUT: | |
680 | RETVAL | |
681 | ||
682 | uLong | |
683 | compressedBytes(s) | |
684 | Compress::Raw::Bzip2 s | |
685 | CODE: | |
686 | RETVAL = s->compressedBytes; | |
687 | OUTPUT: | |
688 | RETVAL | |
689 | ||
690 | uLong | |
691 | uncompressedBytes(s) | |
692 | Compress::Raw::Bzip2 s | |
693 | CODE: | |
694 | RETVAL = s->uncompressedBytes; | |
695 | OUTPUT: | |
696 | RETVAL | |
697 | ||
698 | ||
699 | MODULE = Compress::Raw::Bunzip2 PACKAGE = Compress::Raw::Bunzip2 | |
700 | ||
701 | void | |
702 | DispStream(s, message=NULL) | |
703 | Compress::Raw::Bunzip2 s | |
3383dc2c | 704 | const char * message |
bdb7fd9f RGS |
705 | |
706 | DualType | |
707 | bzinflate (s, buf, output) | |
708 | Compress::Raw::Bunzip2 s | |
709 | SV * buf | |
710 | SV * output | |
711 | uInt cur_length = 0; | |
712 | uInt prefix_length = 0; | |
713 | uInt increment = 0; | |
bdb7fd9f | 714 | uInt bufinc = NO_INIT |
ae48cd00 | 715 | STRLEN na = NO_INIT ; |
fdaa82e4 | 716 | STRLEN origlen = NO_INIT |
bdb7fd9f RGS |
717 | PREINIT: |
718 | #ifdef UTF8_AVAILABLE | |
719 | bool out_utf8 = FALSE; | |
720 | #endif | |
721 | CODE: | |
722 | bufinc = s->bufsize; | |
723 | /* If the buffer is a reference, dereference it */ | |
ea6efd2c | 724 | buf = deRef(buf, "bzinflate") ; |
bdb7fd9f | 725 | |
ae48cd00 CBW |
726 | if (s->flags & FLAG_CONSUME_INPUT) { |
727 | if (SvREADONLY(buf)) | |
728 | croak(UNCOMPRESS_CLASS "::bzinflate input parameter cannot be read-only when ConsumeInput is specified"); | |
729 | SvPV_force(buf, na); | |
730 | } | |
bdb7fd9f RGS |
731 | #ifdef UTF8_AVAILABLE |
732 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) | |
733 | croak("Wide character in " UNCOMPRESS_CLASS "::bzinflate input parameter"); | |
734 | #endif | |
735 | ||
736 | /* initialise the input buffer */ | |
fdaa82e4 CBW |
737 | s->stream.next_in = (char*)SvPV_nomg(buf, origlen) ; |
738 | s->stream.avail_in = origlen; | |
bdb7fd9f RGS |
739 | |
740 | /* and retrieve the output buffer */ | |
ea6efd2c | 741 | output = deRef_l(output, "bzinflate") ; |
bdb7fd9f RGS |
742 | #ifdef UTF8_AVAILABLE |
743 | if (DO_UTF8(output)) | |
744 | out_utf8 = TRUE ; | |
745 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
746 | croak("Wide character in " UNCOMPRESS_CLASS "::bzinflate output parameter"); | |
747 | #endif | |
748 | if((s->flags & FLAG_APPEND_OUTPUT) != FLAG_APPEND_OUTPUT) { | |
749 | SvCUR_set(output, 0); | |
750 | } | |
80b215cb | 751 | |
ea6efd2c MB |
752 | /* Assume no output buffer - the code below will update if there is any available */ |
753 | s->stream.avail_out = 0; | |
754 | ||
755 | if (SvLEN(output)) { | |
756 | prefix_length = cur_length = SvCUR(output) ; | |
757 | ||
758 | if (s->flags & FLAG_LIMIT_OUTPUT && SvLEN(output) - cur_length - 1 < bufinc) | |
759 | { | |
760 | Sv_Grow(output, bufinc + cur_length + 1) ; | |
761 | } | |
762 | ||
763 | /* Only setup the stream output pointers if there is spare | |
764 | capacity in the outout SV | |
765 | */ | |
766 | if (SvLEN(output) > cur_length + 1) | |
767 | { | |
9d90bd60 | 768 | s->stream.next_out = (char*) SvPVX(output) + cur_length; |
ea6efd2c MB |
769 | increment = SvLEN(output) - cur_length - 1; |
770 | s->stream.avail_out = increment; | |
771 | } | |
772 | } | |
773 | ||
774 | s->bytesInflated = 0; | |
775 | ||
776 | RETVAL = BZ_OK; | |
bdb7fd9f RGS |
777 | |
778 | while (1) { | |
779 | ||
780 | if (s->stream.avail_out == 0) { | |
781 | /* out of space in the output buffer so make it bigger */ | |
9d90bd60 | 782 | s->stream.next_out = Sv_Grow(output, SvLEN(output) + bufinc + 1) ; |
bdb7fd9f | 783 | cur_length += increment ; |
9d90bd60 | 784 | s->stream.next_out += cur_length ; |
bdb7fd9f RGS |
785 | increment = bufinc ; |
786 | s->stream.avail_out = increment; | |
787 | bufinc *= 2 ; | |
788 | } | |
789 | ||
dcfdccf9 | 790 | /* DispStream(s, "pre"); */ |
bdb7fd9f RGS |
791 | RETVAL = BZ2_bzDecompress (&(s->stream)); |
792 | ||
9d90bd60 PM |
793 | /* |
794 | printf("Status %d\n", RETVAL); | |
795 | DispStream(s, "apres"); | |
796 | */ | |
ea6efd2c | 797 | if (RETVAL != BZ_OK || s->flags & FLAG_LIMIT_OUTPUT) |
bdb7fd9f RGS |
798 | break ; |
799 | ||
800 | if (s->stream.avail_out == 0) | |
801 | continue ; | |
802 | ||
803 | if (s->stream.avail_in == 0) { | |
804 | RETVAL = BZ_OK ; | |
805 | break ; | |
806 | } | |
807 | ||
808 | } | |
809 | ||
810 | s->last_error = RETVAL ; | |
811 | if (RETVAL == BZ_OK || RETVAL == BZ_STREAM_END) { | |
812 | unsigned in ; | |
813 | ||
814 | s->bytesInflated = cur_length + increment - s->stream.avail_out - prefix_length; | |
815 | s->uncompressedBytes += s->bytesInflated ; | |
fdaa82e4 | 816 | s->compressedBytes += origlen - s->stream.avail_in ; |
bdb7fd9f RGS |
817 | |
818 | SvPOK_only(output); | |
819 | SvCUR_set(output, prefix_length + s->bytesInflated) ; | |
9d90bd60 | 820 | *SvEND(output) = '\0'; |
bdb7fd9f RGS |
821 | #ifdef UTF8_AVAILABLE |
822 | if (out_utf8) | |
9d90bd60 | 823 | sv_utf8_upgrade(output); |
bdb7fd9f | 824 | #endif |
9d90bd60 | 825 | SvSETMAGIC(output); |
bdb7fd9f RGS |
826 | |
827 | /* fix the input buffer */ | |
828 | if (s->flags & FLAG_CONSUME_INPUT) { | |
829 | in = s->stream.avail_in ; | |
830 | SvCUR_set(buf, in) ; | |
831 | if (in) | |
4bac9ae4 | 832 | Move(s->stream.next_in, SvPVX(buf), in, char) ; |
9d90bd60 PM |
833 | *SvEND(buf) = '\0'; |
834 | SvSETMAGIC(buf); | |
bdb7fd9f RGS |
835 | } |
836 | } | |
837 | OUTPUT: | |
838 | RETVAL | |
839 | ||
840 | uLong | |
841 | inflateCount(s) | |
842 | Compress::Raw::Bunzip2 s | |
843 | CODE: | |
844 | RETVAL = s->bytesInflated; | |
845 | OUTPUT: | |
846 | RETVAL | |
847 | ||
848 | ||
849 | void | |
850 | DESTROY(s) | |
851 | Compress::Raw::Bunzip2 s | |
852 | CODE: | |
853 | BZ2_bzDecompressEnd(&s->stream) ; | |
854 | Safefree(s) ; | |
855 | ||
856 | ||
857 | uLong | |
858 | status(s) | |
859 | Compress::Raw::Bunzip2 s | |
860 | CODE: | |
861 | RETVAL = s->last_error ; | |
862 | OUTPUT: | |
863 | RETVAL | |
864 | ||
865 | uLong | |
866 | total_in_lo32(s) | |
867 | Compress::Raw::Bunzip2 s | |
868 | CODE: | |
869 | RETVAL = s->stream.total_in_lo32 ; | |
870 | OUTPUT: | |
871 | RETVAL | |
872 | ||
873 | uLong | |
874 | total_out_lo32(s) | |
875 | Compress::Raw::Bunzip2 s | |
876 | CODE: | |
877 | RETVAL = s->stream.total_out_lo32 ; | |
878 | OUTPUT: | |
879 | RETVAL | |
880 | ||
881 | uLong | |
882 | compressedBytes(s) | |
883 | Compress::Raw::Bunzip2 s | |
884 | CODE: | |
885 | RETVAL = s->compressedBytes; | |
886 | OUTPUT: | |
887 | RETVAL | |
888 | ||
889 | uLong | |
890 | uncompressedBytes(s) | |
891 | Compress::Raw::Bunzip2 s | |
892 | CODE: | |
893 | RETVAL = s->uncompressedBytes; | |
894 | OUTPUT: | |
895 | RETVAL | |
896 | ||
897 | MODULE = Compress::Raw::Bzip2 PACKAGE = Compress::Raw::Bzip2 PREFIX = Zip_ |