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25f0751f PM |
1 | /* Filename: Zlib.xs |
2 | * Author : Paul Marquess, <pmqs@cpan.org> | |
3 | * Created : 22nd January 1996 | |
4 | * Version : 2.000 | |
5 | * | |
319fab50 | 6 | * Copyright (c) 1995-2009 Paul Marquess. All rights reserved. |
25f0751f PM |
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 | ||
12 | /* Parts of this code are based on the files gzio.c and gzappend.c from | |
13 | * the standard zlib source distribution. Below are the copyright statements | |
14 | * from each. | |
15 | */ | |
16 | ||
17 | /* gzio.c -- IO on .gz files | |
18 | * Copyright (C) 1995 Jean-loup Gailly. | |
19 | * For conditions of distribution and use, see copyright notice in zlib.h | |
20 | */ | |
21 | ||
22 | /* gzappend -- command to append to a gzip file | |
23 | ||
24 | Copyright (C) 2003 Mark Adler, all rights reserved | |
25 | version 1.1, 4 Nov 2003 | |
26 | */ | |
27 | ||
28 | ||
29 | ||
30 | #include "EXTERN.h" | |
31 | #include "perl.h" | |
32 | #include "XSUB.h" | |
33 | ||
34 | #include <zlib.h> | |
35 | ||
36 | /* zlib prior to 1.06 doesn't know about z_off_t */ | |
37 | #ifndef z_off_t | |
38 | # define z_off_t long | |
39 | #endif | |
40 | ||
41 | #if ! defined(ZLIB_VERNUM) || ZLIB_VERNUM < 0x1200 | |
42 | # define NEED_DUMMY_BYTE_AT_END | |
43 | #endif | |
44 | ||
45 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1210 | |
46 | # define MAGIC_APPEND | |
47 | #endif | |
48 | ||
49 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1221 | |
50 | # define AT_LEAST_ZLIB_1_2_2_1 | |
51 | #endif | |
52 | ||
e11a3f9e PM |
53 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1222 |
54 | # define AT_LEAST_ZLIB_1_2_2_2 | |
55 | #endif | |
56 | ||
25f0751f PM |
57 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1223 |
58 | # define AT_LEAST_ZLIB_1_2_2_3 | |
59 | #endif | |
60 | ||
61 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1230 | |
62 | # define AT_LEAST_ZLIB_1_2_3 | |
63 | #endif | |
64 | ||
9f44f717 JH |
65 | #ifdef USE_PPPORT_H |
66 | # define NEED_sv_2pvbyte | |
67 | # define NEED_sv_2pv_nolen | |
68 | # include "ppport.h" | |
69 | #endif | |
25f0751f | 70 | |
be714331 PM |
71 | #if PERL_REVISION == 5 && PERL_VERSION == 9 |
72 | /* For Andreas */ | |
73 | # define sv_pvbyte_force(sv,lp) sv_pvbyten_force(sv,lp) | |
74 | #endif | |
75 | ||
258133d1 | 76 | #if PERL_REVISION == 5 && (PERL_VERSION < 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) |
25f0751f PM |
77 | |
78 | # ifdef SvPVbyte_force | |
79 | # undef SvPVbyte_force | |
80 | # endif | |
81 | ||
82 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) | |
83 | ||
258133d1 | 84 | #endif |
25f0751f | 85 | |
258133d1 | 86 | #ifndef SvPVbyte_nolen |
25f0751f | 87 | # define SvPVbyte_nolen SvPV_nolen |
258133d1 | 88 | #endif |
25f0751f PM |
89 | |
90 | ||
25f0751f | 91 | |
258133d1 | 92 | #if 0 |
25f0751f PM |
93 | # ifndef SvPVbyte_nolen |
94 | # define SvPVbyte_nolen SvPV_nolen | |
95 | # endif | |
96 | ||
97 | # ifndef SvPVbyte_force | |
98 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) | |
99 | # endif | |
258133d1 | 100 | #endif |
25f0751f PM |
101 | |
102 | #if PERL_REVISION == 5 && (PERL_VERSION >= 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) | |
103 | # define UTF8_AVAILABLE | |
104 | #endif | |
105 | ||
106 | typedef int DualType ; | |
107 | typedef int int_undef ; | |
108 | ||
109 | typedef struct di_stream { | |
110 | int flags ; | |
111 | #define FLAG_APPEND 1 | |
112 | #define FLAG_CRC32 2 | |
113 | #define FLAG_ADLER32 4 | |
114 | #define FLAG_CONSUME_INPUT 8 | |
9253672d | 115 | #define FLAG_LIMIT_OUTPUT 16 |
25f0751f PM |
116 | uLong crc32 ; |
117 | uLong adler32 ; | |
118 | z_stream stream; | |
119 | uLong bufsize; | |
25f0751f PM |
120 | SV * dictionary ; |
121 | uLong dict_adler ; | |
122 | int last_error ; | |
123 | bool zip_mode ; | |
124 | #define SETP_BYTE | |
125 | #ifdef SETP_BYTE | |
126 | bool deflateParams_out_valid ; | |
127 | Bytef deflateParams_out_byte; | |
128 | #else | |
129 | #define deflateParams_BUFFER_SIZE 0x4000 | |
130 | uLong deflateParams_out_length; | |
131 | Bytef* deflateParams_out_buffer; | |
132 | #endif | |
133 | int Level; | |
134 | int Method; | |
135 | int WindowBits; | |
136 | int MemLevel; | |
137 | int Strategy; | |
138 | uLong bytesInflated ; | |
139 | uLong compressedBytes ; | |
140 | uLong uncompressedBytes ; | |
141 | #ifdef MAGIC_APPEND | |
142 | ||
143 | #define WINDOW_SIZE 32768U | |
144 | ||
145 | bool matchedEndBlock; | |
146 | Bytef* window ; | |
147 | int window_lastbit, window_left, window_full; | |
148 | unsigned window_have; | |
149 | off_t window_lastoff, window_end; | |
150 | off_t window_endOffset; | |
151 | ||
152 | uLong lastBlockOffset ; | |
153 | unsigned char window_lastByte ; | |
154 | ||
155 | ||
156 | #endif | |
157 | } di_stream; | |
158 | ||
159 | typedef di_stream * deflateStream ; | |
160 | typedef di_stream * Compress__Raw__Zlib__deflateStream ; | |
161 | typedef di_stream * inflateStream ; | |
162 | typedef di_stream * Compress__Raw__Zlib__inflateStream ; | |
163 | typedef di_stream * Compress__Raw__Zlib__inflateScanStream ; | |
164 | ||
25f0751f PM |
165 | #define ZMALLOC(to, typ) ((to = (typ *)safemalloc(sizeof(typ))), \ |
166 | Zero(to,1,typ)) | |
167 | ||
168 | /* Figure out the Operating System */ | |
169 | #ifdef MSDOS | |
170 | # define OS_CODE 0x00 | |
171 | #endif | |
172 | ||
173 | #if defined(AMIGA) || defined(AMIGAOS) | |
174 | # define OS_CODE 0x01 | |
175 | #endif | |
176 | ||
177 | #if defined(VAXC) || defined(VMS) | |
178 | # define OS_CODE 0x02 | |
179 | #endif | |
180 | ||
181 | #if 0 /* VM/CMS */ | |
182 | # define OS_CODE 0x04 | |
183 | #endif | |
184 | ||
185 | #if defined(ATARI) || defined(atarist) | |
186 | # define OS_CODE 0x05 | |
187 | #endif | |
188 | ||
189 | #ifdef OS2 | |
190 | # define OS_CODE 0x06 | |
191 | #endif | |
192 | ||
193 | #if defined(MACOS) || defined(TARGET_OS_MAC) | |
194 | # define OS_CODE 0x07 | |
195 | #endif | |
196 | ||
197 | #if 0 /* Z-System */ | |
198 | # define OS_CODE 0x08 | |
199 | #endif | |
200 | ||
201 | #if 0 /* CP/M */ | |
202 | # define OS_CODE 0x09 | |
203 | #endif | |
204 | ||
205 | #ifdef TOPS20 | |
206 | # define OS_CODE 0x0a | |
207 | #endif | |
208 | ||
209 | #ifdef WIN32 /* Window 95 & Windows NT */ | |
210 | # define OS_CODE 0x0b | |
211 | #endif | |
212 | ||
213 | #if 0 /* QDOS */ | |
214 | # define OS_CODE 0x0c | |
215 | #endif | |
216 | ||
217 | #if 0 /* Acorn RISCOS */ | |
218 | # define OS_CODE 0x0d | |
219 | #endif | |
220 | ||
221 | #if 0 /* ??? */ | |
222 | # define OS_CODE 0x0e | |
223 | #endif | |
224 | ||
225 | #ifdef __50SERIES /* Prime/PRIMOS */ | |
226 | # define OS_CODE 0x0F | |
227 | #endif | |
228 | ||
229 | /* Default to UNIX */ | |
230 | #ifndef OS_CODE | |
231 | # define OS_CODE 0x03 /* assume Unix */ | |
232 | #endif | |
233 | ||
234 | #ifndef GZIP_OS_CODE | |
235 | # define GZIP_OS_CODE OS_CODE | |
236 | #endif | |
237 | ||
238 | #define adlerInitial adler32(0L, Z_NULL, 0) | |
239 | #define crcInitial crc32(0L, Z_NULL, 0) | |
240 | ||
d5e10e57 | 241 | /* static const char * const my_z_errmsg[] = { */ |
d54256af | 242 | static const char my_z_errmsg[][32] = { |
25f0751f PM |
243 | "need dictionary", /* Z_NEED_DICT 2 */ |
244 | "stream end", /* Z_STREAM_END 1 */ | |
245 | "", /* Z_OK 0 */ | |
246 | "file error", /* Z_ERRNO (-1) */ | |
247 | "stream error", /* Z_STREAM_ERROR (-2) */ | |
248 | "data error", /* Z_DATA_ERROR (-3) */ | |
249 | "insufficient memory", /* Z_MEM_ERROR (-4) */ | |
250 | "buffer error", /* Z_BUF_ERROR (-5) */ | |
251 | "incompatible version",/* Z_VERSION_ERROR(-6) */ | |
252 | ""}; | |
253 | ||
254 | #define setDUALstatus(var, err) \ | |
255 | sv_setnv(var, (double)err) ; \ | |
256 | sv_setpv(var, ((err) ? GetErrorString(err) : "")) ; \ | |
257 | SvNOK_on(var); | |
258 | ||
259 | ||
260 | #if defined(__SYMBIAN32__) | |
261 | # define NO_WRITEABLE_DATA | |
262 | #endif | |
263 | ||
264 | #define TRACE_DEFAULT 0 | |
265 | ||
266 | #ifdef NO_WRITEABLE_DATA | |
267 | # define trace TRACE_DEFAULT | |
268 | #else | |
269 | static int trace = TRACE_DEFAULT ; | |
270 | #endif | |
271 | ||
272 | /* Dodge PerlIO hiding of these functions. */ | |
273 | #undef printf | |
274 | ||
275 | static char * | |
276 | #ifdef CAN_PROTOTYPE | |
277 | GetErrorString(int error_no) | |
278 | #else | |
279 | GetErrorString(error_no) | |
280 | int error_no ; | |
281 | #endif | |
282 | { | |
283 | dTHX; | |
284 | char * errstr ; | |
285 | ||
286 | if (error_no == Z_ERRNO) { | |
287 | errstr = Strerror(errno) ; | |
288 | } | |
289 | else | |
290 | /* errstr = gzerror(fil, &error_no) ; */ | |
291 | errstr = (char*) my_z_errmsg[2 - error_no]; | |
292 | ||
293 | return errstr ; | |
294 | } | |
295 | ||
25f0751f PM |
296 | |
297 | #ifdef MAGIC_APPEND | |
298 | ||
299 | /* | |
300 | The following two functions are taken almost directly from | |
301 | examples/gzappend.c. Only cosmetic changes have been made to conform to | |
302 | the coding style of the rest of the code in this file. | |
303 | */ | |
304 | ||
305 | ||
306 | /* return the greatest common divisor of a and b using Euclid's algorithm, | |
307 | modified to be fast when one argument much greater than the other, and | |
308 | coded to avoid unnecessary swapping */ | |
309 | static unsigned | |
310 | #ifdef CAN_PROTOTYPE | |
311 | gcd(unsigned a, unsigned b) | |
312 | #else | |
313 | gcd(a, b) | |
314 | unsigned a; | |
315 | unsigned b; | |
316 | #endif | |
317 | { | |
318 | unsigned c; | |
319 | ||
320 | while (a && b) | |
321 | if (a > b) { | |
322 | c = b; | |
323 | while (a - c >= c) | |
324 | c <<= 1; | |
325 | a -= c; | |
326 | } | |
327 | else { | |
328 | c = a; | |
329 | while (b - c >= c) | |
330 | c <<= 1; | |
331 | b -= c; | |
332 | } | |
333 | return a + b; | |
334 | } | |
335 | ||
336 | /* rotate list[0..len-1] left by rot positions, in place */ | |
337 | static void | |
338 | #ifdef CAN_PROTOTYPE | |
339 | rotate(unsigned char *list, unsigned len, unsigned rot) | |
340 | #else | |
341 | rotate(list, len, rot) | |
342 | unsigned char *list; | |
343 | unsigned len ; | |
344 | unsigned rot; | |
345 | #endif | |
346 | { | |
347 | unsigned char tmp; | |
348 | unsigned cycles; | |
349 | unsigned char *start, *last, *to, *from; | |
350 | ||
351 | /* normalize rot and handle degenerate cases */ | |
352 | if (len < 2) return; | |
353 | if (rot >= len) rot %= len; | |
354 | if (rot == 0) return; | |
355 | ||
356 | /* pointer to last entry in list */ | |
357 | last = list + (len - 1); | |
358 | ||
359 | /* do simple left shift by one */ | |
360 | if (rot == 1) { | |
361 | tmp = *list; | |
362 | memcpy(list, list + 1, len - 1); | |
363 | *last = tmp; | |
364 | return; | |
365 | } | |
366 | ||
367 | /* do simple right shift by one */ | |
368 | if (rot == len - 1) { | |
369 | tmp = *last; | |
370 | memmove(list + 1, list, len - 1); | |
371 | *list = tmp; | |
372 | return; | |
373 | } | |
374 | ||
375 | /* otherwise do rotate as a set of cycles in place */ | |
376 | cycles = gcd(len, rot); /* number of cycles */ | |
377 | do { | |
378 | start = from = list + cycles; /* start index is arbitrary */ | |
379 | tmp = *from; /* save entry to be overwritten */ | |
380 | for (;;) { | |
381 | to = from; /* next step in cycle */ | |
382 | from += rot; /* go right rot positions */ | |
383 | if (from > last) from -= len; /* (pointer better not wrap) */ | |
384 | if (from == start) break; /* all but one shifted */ | |
385 | *to = *from; /* shift left */ | |
386 | } | |
387 | *to = tmp; /* complete the circle */ | |
388 | } while (--cycles); | |
389 | } | |
390 | ||
391 | #endif /* MAGIC_APPEND */ | |
392 | ||
393 | static void | |
394 | #ifdef CAN_PROTOTYPE | |
395 | DispHex(void * ptr, int length) | |
396 | #else | |
397 | DispHex(ptr, length) | |
398 | void * ptr; | |
399 | int length; | |
400 | #endif | |
401 | { | |
402 | char * p = (char*)ptr; | |
403 | int i; | |
404 | for (i = 0; i < length; ++i) { | |
405 | printf(" %02x", 0xFF & *(p+i)); | |
406 | } | |
407 | } | |
408 | ||
409 | ||
410 | static void | |
411 | #ifdef CAN_PROTOTYPE | |
412 | DispStream(di_stream * s, char * message) | |
413 | #else | |
414 | DispStream(s, message) | |
415 | di_stream * s; | |
416 | char * message; | |
417 | #endif | |
418 | { | |
419 | ||
420 | #if 0 | |
421 | if (! trace) | |
422 | return ; | |
423 | #endif | |
424 | ||
425 | #define EnDis(f) (s->flags & f ? "Enabled" : "Disabled") | |
426 | ||
427 | printf("DispStream 0x%p", s) ; | |
428 | if (message) | |
429 | printf("- %s \n", message) ; | |
430 | printf("\n") ; | |
431 | ||
432 | if (!s) { | |
433 | printf(" stream pointer is NULL\n"); | |
434 | } | |
435 | else { | |
436 | printf(" stream 0x%p\n", &(s->stream)); | |
437 | printf(" zalloc 0x%p\n", s->stream.zalloc); | |
438 | printf(" zfree 0x%p\n", s->stream.zfree); | |
439 | printf(" opaque 0x%p\n", s->stream.opaque); | |
440 | if (s->stream.msg) | |
441 | printf(" msg %s\n", s->stream.msg); | |
442 | else | |
443 | printf(" msg \n"); | |
444 | printf(" next_in 0x%p", s->stream.next_in); | |
445 | if (s->stream.next_in){ | |
446 | printf(" =>"); | |
447 | DispHex(s->stream.next_in, 4); | |
448 | } | |
449 | printf("\n"); | |
450 | ||
451 | printf(" next_out 0x%p", s->stream.next_out); | |
452 | if (s->stream.next_out){ | |
453 | printf(" =>"); | |
454 | DispHex(s->stream.next_out, 4); | |
455 | } | |
456 | printf("\n"); | |
457 | ||
458 | printf(" avail_in %lu\n", (unsigned long)s->stream.avail_in); | |
459 | printf(" avail_out %lu\n", (unsigned long)s->stream.avail_out); | |
460 | printf(" total_in %ld\n", s->stream.total_in); | |
461 | printf(" total_out %ld\n", s->stream.total_out); | |
462 | printf(" adler %ld\n", s->stream.adler ); | |
463 | printf(" bufsize %ld\n", s->bufsize); | |
464 | printf(" dictionary 0x%p\n", s->dictionary); | |
465 | printf(" dict_adler 0x%ld\n",s->dict_adler); | |
466 | printf(" zip_mode %d\n", s->zip_mode); | |
467 | printf(" crc32 0x%x\n", (unsigned)s->crc32); | |
468 | printf(" adler32 0x%x\n", (unsigned)s->adler32); | |
469 | printf(" flags 0x%x\n", s->flags); | |
470 | printf(" APPEND %s\n", EnDis(FLAG_APPEND)); | |
471 | printf(" CRC32 %s\n", EnDis(FLAG_CRC32)); | |
472 | printf(" ADLER32 %s\n", EnDis(FLAG_ADLER32)); | |
473 | printf(" CONSUME %s\n", EnDis(FLAG_CONSUME_INPUT)); | |
9253672d SH |
474 | printf(" LIMIT %s\n", EnDis(FLAG_LIMIT_OUTPUT)); |
475 | ||
25f0751f PM |
476 | |
477 | #ifdef MAGIC_APPEND | |
478 | printf(" window 0x%p\n", s->window); | |
479 | #endif | |
480 | printf("\n"); | |
481 | ||
482 | } | |
483 | } | |
484 | ||
485 | static di_stream * | |
486 | #ifdef CAN_PROTOTYPE | |
487 | InitStream(void) | |
488 | #else | |
489 | InitStream() | |
490 | #endif | |
491 | { | |
492 | di_stream *s ; | |
493 | ||
494 | ZMALLOC(s, di_stream) ; | |
495 | ||
496 | return s ; | |
497 | ||
498 | } | |
499 | ||
500 | static void | |
501 | #ifdef CAN_PROTOTYPE | |
502 | PostInitStream(di_stream * s, int flags, int bufsize, int windowBits) | |
503 | #else | |
504 | PostInitStream(s, flags, bufsize, windowBits) | |
505 | di_stream *s ; | |
506 | int flags ; | |
507 | int bufsize ; | |
508 | int windowBits ; | |
509 | #endif | |
510 | { | |
511 | s->bufsize = bufsize ; | |
25f0751f PM |
512 | s->compressedBytes = |
513 | s->uncompressedBytes = | |
514 | s->last_error = 0 ; | |
515 | s->flags = flags ; | |
516 | s->zip_mode = (windowBits < 0) ; | |
517 | if (flags & FLAG_CRC32) | |
518 | s->crc32 = crcInitial ; | |
519 | if (flags & FLAG_ADLER32) | |
520 | s->adler32 = adlerInitial ; | |
521 | } | |
522 | ||
523 | ||
524 | static SV* | |
525 | #ifdef CAN_PROTOTYPE | |
92905b42 | 526 | deRef(SV * sv, const char * string) |
25f0751f PM |
527 | #else |
528 | deRef(sv, string) | |
529 | SV * sv ; | |
530 | char * string; | |
531 | #endif | |
532 | { | |
533 | dTHX; | |
534 | SvGETMAGIC(sv); | |
535 | ||
536 | if (SvROK(sv)) { | |
537 | sv = SvRV(sv) ; | |
538 | SvGETMAGIC(sv); | |
539 | switch(SvTYPE(sv)) { | |
540 | case SVt_PVAV: | |
541 | case SVt_PVHV: | |
542 | case SVt_PVCV: | |
543 | croak("%s: buffer parameter is not a SCALAR reference", string); | |
776304fb PM |
544 | default: |
545 | break; | |
25f0751f PM |
546 | } |
547 | if (SvROK(sv)) | |
548 | croak("%s: buffer parameter is a reference to a reference", string) ; | |
549 | } | |
550 | ||
551 | if (!SvOK(sv)) { | |
552 | sv = newSVpv("", 0); | |
553 | } | |
554 | ||
555 | return sv ; | |
556 | } | |
557 | ||
558 | static SV* | |
559 | #ifdef CAN_PROTOTYPE | |
92905b42 | 560 | deRef_l(SV * sv, const char * string) |
25f0751f PM |
561 | #else |
562 | deRef_l(sv, string) | |
563 | SV * sv ; | |
564 | char * string ; | |
565 | #endif | |
566 | { | |
567 | dTHX; | |
568 | bool wipe = 0 ; | |
569 | ||
570 | SvGETMAGIC(sv); | |
571 | wipe = ! SvOK(sv) ; | |
572 | ||
573 | if (SvROK(sv)) { | |
574 | sv = SvRV(sv) ; | |
575 | SvGETMAGIC(sv); | |
576 | wipe = ! SvOK(sv) ; | |
577 | ||
578 | switch(SvTYPE(sv)) { | |
579 | case SVt_PVAV: | |
580 | case SVt_PVHV: | |
581 | case SVt_PVCV: | |
582 | croak("%s: buffer parameter is not a SCALAR reference", string); | |
776304fb PM |
583 | default: |
584 | break; | |
25f0751f PM |
585 | } |
586 | if (SvROK(sv)) | |
587 | croak("%s: buffer parameter is a reference to a reference", string) ; | |
588 | } | |
589 | ||
590 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) | |
591 | croak("%s: buffer parameter is read-only", string); | |
592 | ||
593 | SvUPGRADE(sv, SVt_PV); | |
594 | ||
595 | if (wipe) | |
596 | SvCUR_set(sv, 0); | |
597 | ||
598 | SvOOK_off(sv); | |
599 | SvPOK_only(sv); | |
600 | ||
601 | return sv ; | |
602 | } | |
603 | ||
604 | ||
605 | #include "constants.h" | |
606 | ||
607 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib PREFIX = Zip_ | |
608 | ||
609 | REQUIRE: 1.924 | |
610 | PROTOTYPES: DISABLE | |
611 | ||
612 | INCLUDE: constants.xs | |
613 | ||
614 | BOOT: | |
615 | /* Check this version of zlib is == 1 */ | |
616 | if (zlibVersion()[0] != '1') | |
617 | croak("Compress::Raw::Zlib needs zlib version 1.x\n") ; | |
618 | ||
619 | { | |
620 | /* Create the $os_code scalar */ | |
621 | SV * os_code_sv = perl_get_sv("Compress::Raw::Zlib::gzip_os_code", GV_ADDMULTI) ; | |
622 | sv_setiv(os_code_sv, GZIP_OS_CODE) ; | |
623 | } | |
624 | ||
625 | ||
d56f7e4c PM |
626 | #define Zip_zlib_version() (const char*)zlib_version |
627 | const char* | |
25f0751f PM |
628 | Zip_zlib_version() |
629 | ||
630 | unsigned | |
631 | ZLIB_VERNUM() | |
632 | CODE: | |
633 | #ifdef ZLIB_VERNUM | |
634 | RETVAL = ZLIB_VERNUM ; | |
635 | #else | |
636 | /* 1.1.4 => 0x1140 */ | |
637 | RETVAL = (ZLIB_VERSION[0] - '0') << 12 ; | |
638 | RETVAL += (ZLIB_VERSION[2] - '0') << 8 ; | |
639 | RETVAL += (ZLIB_VERSION[4] - '0') << 4 ; | |
640 | #endif | |
641 | OUTPUT: | |
642 | RETVAL | |
643 | ||
644 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib PREFIX = Zip_ | |
645 | ||
646 | #define Zip_adler32(buf, adler) adler32(adler, buf, (uInt)len) | |
647 | ||
648 | uLong | |
649 | Zip_adler32(buf, adler=adlerInitial) | |
650 | uLong adler = NO_INIT | |
651 | STRLEN len = NO_INIT | |
652 | Bytef * buf = NO_INIT | |
653 | SV * sv = ST(0) ; | |
654 | INIT: | |
655 | /* If the buffer is a reference, dereference it */ | |
656 | sv = deRef(sv, "adler32") ; | |
657 | #ifdef UTF8_AVAILABLE | |
658 | if (DO_UTF8(sv) && !sv_utf8_downgrade(sv, 1)) | |
659 | croak("Wide character in Compress::Raw::Zlib::adler32"); | |
660 | #endif | |
661 | buf = (Byte*)SvPVbyte(sv, len) ; | |
662 | ||
663 | if (items < 2) | |
664 | adler = adlerInitial; | |
665 | else if (SvOK(ST(1))) | |
666 | adler = SvUV(ST(1)) ; | |
667 | else | |
668 | adler = adlerInitial; | |
d56f7e4c PM |
669 | OUTPUT: |
670 | RETVAL | |
25f0751f PM |
671 | |
672 | #define Zip_crc32(buf, crc) crc32(crc, buf, (uInt)len) | |
673 | ||
674 | uLong | |
675 | Zip_crc32(buf, crc=crcInitial) | |
676 | uLong crc = NO_INIT | |
677 | STRLEN len = NO_INIT | |
678 | Bytef * buf = NO_INIT | |
679 | SV * sv = ST(0) ; | |
680 | INIT: | |
681 | /* If the buffer is a reference, dereference it */ | |
682 | sv = deRef(sv, "crc32") ; | |
683 | #ifdef UTF8_AVAILABLE | |
684 | if (DO_UTF8(sv) && !sv_utf8_downgrade(sv, 1)) | |
685 | croak("Wide character in Compress::Raw::Zlib::crc32"); | |
686 | #endif | |
687 | buf = (Byte*)SvPVbyte(sv, len) ; | |
688 | ||
689 | if (items < 2) | |
690 | crc = crcInitial; | |
691 | else if (SvOK(ST(1))) | |
692 | crc = SvUV(ST(1)) ; | |
693 | else | |
694 | crc = crcInitial; | |
695 | ||
696 | ||
697 | uLong | |
698 | crc32_combine(crc1, crc2, len2) | |
699 | uLong crc1 | |
700 | uLong crc2 | |
701 | z_off_t len2 | |
702 | CODE: | |
703 | #ifndef AT_LEAST_ZLIB_1_2_2_1 | |
704 | crc1 = crc1; crc2 = crc2 ; len2 = len2; /* Silence -Wall */ | |
705 | croak("crc32_combine needs zlib 1.2.3 or better"); | |
706 | #else | |
707 | RETVAL = crc32_combine(crc1, crc2, len2); | |
708 | #endif | |
709 | OUTPUT: | |
710 | RETVAL | |
711 | ||
712 | ||
713 | uLong | |
714 | adler32_combine(adler1, adler2, len2) | |
715 | uLong adler1 | |
716 | uLong adler2 | |
717 | z_off_t len2 | |
718 | CODE: | |
719 | #ifndef AT_LEAST_ZLIB_1_2_2_1 | |
720 | adler1 = adler1; adler2 = adler2 ; len2 = len2; /* Silence -Wall */ | |
721 | croak("adler32_combine needs zlib 1.2.3 or better"); | |
722 | #else | |
723 | RETVAL = adler32_combine(adler1, adler2, len2); | |
724 | #endif | |
725 | OUTPUT: | |
726 | RETVAL | |
727 | ||
728 | ||
729 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib | |
730 | ||
731 | void | |
732 | _deflateInit(flags,level, method, windowBits, memLevel, strategy, bufsize, dictionary) | |
733 | int flags | |
734 | int level | |
735 | int method | |
736 | int windowBits | |
737 | int memLevel | |
738 | int strategy | |
739 | uLong bufsize | |
740 | SV* dictionary | |
741 | PPCODE: | |
742 | int err ; | |
743 | deflateStream s ; | |
744 | ||
d56f7e4c PM |
745 | if (trace) |
746 | warn("in _deflateInit(level=%d, method=%d, windowBits=%d, memLevel=%d, strategy=%d, bufsize=%ld dictionary=%p)\n", | |
747 | level, method, windowBits, memLevel, strategy, bufsize, dictionary) ; | |
25f0751f PM |
748 | if ((s = InitStream() )) { |
749 | ||
750 | s->Level = level; | |
751 | s->Method = method; | |
752 | s->WindowBits = windowBits; | |
753 | s->MemLevel = memLevel; | |
754 | s->Strategy = strategy; | |
755 | ||
756 | err = deflateInit2(&(s->stream), level, | |
757 | method, windowBits, memLevel, strategy); | |
758 | ||
759 | /* Check if a dictionary has been specified */ | |
760 | ||
761 | if (err == Z_OK && SvCUR(dictionary)) { | |
762 | #ifdef UTF8_AVAILABLE | |
763 | if (DO_UTF8(dictionary) && !sv_utf8_downgrade(dictionary, 1)) | |
764 | croak("Wide character in Compress::Raw::Zlib::Deflate::new dicrionary parameter"); | |
765 | #endif | |
766 | err = deflateSetDictionary(&(s->stream), (const Bytef*) SvPVbyte_nolen(dictionary), | |
767 | SvCUR(dictionary)) ; | |
768 | s->dict_adler = s->stream.adler ; | |
769 | } | |
770 | ||
771 | if (err != Z_OK) { | |
772 | Safefree(s) ; | |
773 | s = NULL ; | |
774 | } | |
775 | else | |
776 | PostInitStream(s, flags, bufsize, windowBits) ; | |
777 | ||
778 | } | |
779 | else | |
780 | err = Z_MEM_ERROR ; | |
781 | ||
d56f7e4c PM |
782 | { |
783 | SV* obj = sv_setref_pv(sv_newmortal(), | |
784 | "Compress::Raw::Zlib::deflateStream", (void*)s); | |
785 | XPUSHs(obj); | |
786 | } | |
25f0751f PM |
787 | if (GIMME == G_ARRAY) { |
788 | SV * sv = sv_2mortal(newSViv(err)) ; | |
789 | setDUALstatus(sv, err); | |
790 | XPUSHs(sv) ; | |
791 | } | |
792 | ||
793 | void | |
794 | _inflateInit(flags, windowBits, bufsize, dictionary) | |
795 | int flags | |
796 | int windowBits | |
797 | uLong bufsize | |
798 | SV * dictionary | |
799 | ALIAS: | |
800 | _inflateScanInit = 1 | |
801 | PPCODE: | |
802 | ||
803 | int err = Z_OK ; | |
804 | inflateStream s ; | |
805 | #ifndef MAGIC_APPEND | |
806 | if (ix == 1) | |
807 | croak("inflateScanInit needs zlib 1.2.1 or better"); | |
808 | #endif | |
809 | if (trace) | |
810 | warn("in _inflateInit(windowBits=%d, bufsize=%lu, dictionary=%lu\n", | |
811 | windowBits, bufsize, (unsigned long)SvCUR(dictionary)) ; | |
812 | if ((s = InitStream() )) { | |
813 | ||
814 | s->WindowBits = windowBits; | |
815 | ||
816 | err = inflateInit2(&(s->stream), windowBits); | |
817 | if (err != Z_OK) { | |
818 | Safefree(s) ; | |
819 | s = NULL ; | |
820 | } | |
821 | else if (SvCUR(dictionary)) { | |
e11a3f9e PM |
822 | #ifdef AT_LEAST_ZLIB_1_2_2_1 |
823 | /* Zlib 1.2.2.1 or better allows a dictionary with raw inflate */ | |
824 | if (s->WindowBits < 0) { | |
825 | err = inflateSetDictionary(&(s->stream), | |
826 | (const Bytef*)SvPVbyte_nolen(dictionary), | |
827 | SvCUR(dictionary)); | |
828 | if (err != Z_OK) { | |
829 | Safefree(s) ; | |
830 | s = NULL ; | |
831 | } | |
832 | } | |
833 | else | |
834 | #endif | |
25f0751f PM |
835 | /* Dictionary specified - take a copy for use in inflate */ |
836 | s->dictionary = newSVsv(dictionary) ; | |
837 | } | |
838 | if (s) { | |
839 | PostInitStream(s, flags, bufsize, windowBits) ; | |
840 | #ifdef MAGIC_APPEND | |
841 | if (ix == 1) | |
842 | { | |
843 | s->window = (unsigned char *)safemalloc(WINDOW_SIZE); | |
844 | } | |
845 | #endif | |
846 | } | |
847 | } | |
848 | else | |
849 | err = Z_MEM_ERROR ; | |
850 | ||
d56f7e4c PM |
851 | { |
852 | SV* obj = sv_setref_pv(sv_newmortal(), | |
25f0751f PM |
853 | ix == 1 |
854 | ? "Compress::Raw::Zlib::inflateScanStream" | |
855 | : "Compress::Raw::Zlib::inflateStream", | |
d56f7e4c PM |
856 | (void*)s); |
857 | XPUSHs(obj); | |
858 | } | |
25f0751f PM |
859 | if (GIMME == G_ARRAY) { |
860 | SV * sv = sv_2mortal(newSViv(err)) ; | |
861 | setDUALstatus(sv, err); | |
862 | XPUSHs(sv) ; | |
863 | } | |
864 | ||
865 | ||
866 | ||
867 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::deflateStream | |
868 | ||
869 | void | |
870 | DispStream(s, message=NULL) | |
871 | Compress::Raw::Zlib::deflateStream s | |
872 | char * message | |
873 | ||
874 | DualType | |
875 | deflateReset(s) | |
876 | Compress::Raw::Zlib::deflateStream s | |
877 | CODE: | |
878 | RETVAL = deflateReset(&(s->stream)) ; | |
879 | if (RETVAL == Z_OK) { | |
880 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; | |
881 | } | |
882 | OUTPUT: | |
883 | RETVAL | |
884 | ||
885 | DualType | |
886 | deflate (s, buf, output) | |
887 | Compress::Raw::Zlib::deflateStream s | |
888 | SV * buf | |
889 | SV * output | |
890 | uInt cur_length = NO_INIT | |
891 | uInt increment = NO_INIT | |
892 | uInt prefix = NO_INIT | |
893 | int RETVAL = 0; | |
258133d1 | 894 | uLong bufinc = NO_INIT |
25f0751f | 895 | CODE: |
258133d1 | 896 | bufinc = s->bufsize; |
25f0751f PM |
897 | |
898 | /* If the input buffer is a reference, dereference it */ | |
899 | buf = deRef(buf, "deflate") ; | |
900 | ||
901 | /* initialise the input buffer */ | |
902 | #ifdef UTF8_AVAILABLE | |
903 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) | |
904 | croak("Wide character in Compress::Raw::Zlib::Deflate::deflate input parameter"); | |
905 | #endif | |
906 | s->stream.next_in = (Bytef*)SvPVbyte_nolen(buf) ; | |
907 | s->stream.avail_in = SvCUR(buf) ; | |
908 | ||
909 | if (s->flags & FLAG_CRC32) | |
910 | s->crc32 = crc32(s->crc32, s->stream.next_in, s->stream.avail_in) ; | |
911 | ||
912 | if (s->flags & FLAG_ADLER32) | |
913 | s->adler32 = adler32(s->adler32, s->stream.next_in, s->stream.avail_in) ; | |
914 | ||
915 | /* and retrieve the output buffer */ | |
916 | output = deRef_l(output, "deflate") ; | |
917 | #ifdef UTF8_AVAILABLE | |
918 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
919 | croak("Wide character in Compress::Raw::Zlib::Deflate::deflate output parameter"); | |
920 | #endif | |
921 | ||
922 | if((s->flags & FLAG_APPEND) != FLAG_APPEND) { | |
923 | SvCUR_set(output, 0); | |
924 | /* sv_setpvn(output, "", 0); */ | |
925 | } | |
926 | prefix = cur_length = SvCUR(output) ; | |
927 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; | |
928 | increment = SvLEN(output) - cur_length; | |
929 | s->stream.avail_out = increment; | |
930 | #ifdef SETP_BYTE | |
931 | /* Check for saved output from deflateParams */ | |
932 | if (s->deflateParams_out_valid) { | |
933 | *(s->stream.next_out) = s->deflateParams_out_byte; | |
934 | ++ s->stream.next_out; | |
935 | -- s->stream.avail_out ; | |
936 | s->deflateParams_out_valid = FALSE; | |
937 | } | |
938 | #else | |
939 | /* Check for saved output from deflateParams */ | |
940 | if (s->deflateParams_out_length) { | |
941 | uLong plen = s->deflateParams_out_length ; | |
942 | /* printf("Copy %d bytes saved data\n", plen);*/ | |
943 | if (s->stream.avail_out < plen) { | |
944 | /*printf("GROW from %d to %d\n", s->stream.avail_out, | |
945 | SvLEN(output) + plen - s->stream.avail_out); */ | |
946 | Sv_Grow(output, SvLEN(output) + plen - s->stream.avail_out) ; | |
947 | } | |
948 | ||
949 | Copy(s->stream.next_out, s->deflateParams_out_buffer, plen, Bytef) ; | |
950 | cur_length = cur_length + plen; | |
951 | SvCUR_set(output, cur_length); | |
952 | s->stream.next_out += plen ; | |
953 | s->stream.avail_out = SvLEN(output) - cur_length ; | |
954 | increment = s->stream.avail_out; | |
955 | s->deflateParams_out_length = 0; | |
956 | } | |
957 | #endif | |
958 | while (s->stream.avail_in != 0) { | |
959 | ||
960 | if (s->stream.avail_out == 0) { | |
961 | /* out of space in the output buffer so make it bigger */ | |
258133d1 | 962 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f PM |
963 | cur_length += increment ; |
964 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; | |
258133d1 | 965 | increment = bufinc ; |
25f0751f | 966 | s->stream.avail_out = increment; |
258133d1 | 967 | bufinc *= 2 ; |
25f0751f PM |
968 | } |
969 | ||
970 | RETVAL = deflate(&(s->stream), Z_NO_FLUSH); | |
971 | if (RETVAL != Z_OK) | |
972 | break; | |
973 | } | |
974 | ||
975 | s->compressedBytes += cur_length + increment - prefix - s->stream.avail_out ; | |
976 | s->uncompressedBytes += SvCUR(buf) - s->stream.avail_in ; | |
977 | ||
978 | s->last_error = RETVAL ; | |
979 | if (RETVAL == Z_OK) { | |
980 | SvPOK_only(output); | |
981 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; | |
4e7676c7 | 982 | SvSETMAGIC(output); |
25f0751f PM |
983 | } |
984 | OUTPUT: | |
985 | RETVAL | |
25f0751f PM |
986 | |
987 | ||
988 | void | |
989 | DESTROY(s) | |
990 | Compress::Raw::Zlib::deflateStream s | |
991 | CODE: | |
992 | deflateEnd(&s->stream) ; | |
993 | if (s->dictionary) | |
994 | SvREFCNT_dec(s->dictionary) ; | |
995 | #ifndef SETP_BYTE | |
996 | if (s->deflateParams_out_buffer) | |
997 | Safefree(s->deflateParams_out_buffer); | |
998 | #endif | |
999 | Safefree(s) ; | |
1000 | ||
1001 | ||
1002 | DualType | |
1003 | flush(s, output, f=Z_FINISH) | |
1004 | Compress::Raw::Zlib::deflateStream s | |
1005 | SV * output | |
1006 | int f | |
1007 | uInt cur_length = NO_INIT | |
1008 | uInt increment = NO_INIT | |
1009 | uInt prefix = NO_INIT | |
258133d1 | 1010 | uLong bufinc = NO_INIT |
25f0751f | 1011 | CODE: |
258133d1 | 1012 | bufinc = s->bufsize; |
25f0751f PM |
1013 | |
1014 | s->stream.avail_in = 0; /* should be zero already anyway */ | |
1015 | ||
1016 | /* retrieve the output buffer */ | |
1017 | output = deRef_l(output, "flush") ; | |
1018 | #ifdef UTF8_AVAILABLE | |
1019 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
1020 | croak("Wide character in Compress::Raw::Zlib::Deflate::flush input parameter"); | |
1021 | #endif | |
1022 | if(! s->flags & FLAG_APPEND) { | |
1023 | SvCUR_set(output, 0); | |
1024 | /* sv_setpvn(output, "", 0); */ | |
1025 | } | |
1026 | prefix = cur_length = SvCUR(output) ; | |
1027 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; | |
1028 | increment = SvLEN(output) - cur_length; | |
1029 | s->stream.avail_out = increment; | |
1030 | #ifdef SETP_BYTE | |
1031 | /* Check for saved output from deflateParams */ | |
1032 | if (s->deflateParams_out_valid) { | |
1033 | *(s->stream.next_out) = s->deflateParams_out_byte; | |
1034 | ++ s->stream.next_out; | |
1035 | -- s->stream.avail_out ; | |
1036 | s->deflateParams_out_valid = FALSE; | |
1037 | } | |
1038 | #else | |
1039 | /* Check for saved output from deflateParams */ | |
1040 | if (s->deflateParams_out_length) { | |
1041 | uLong plen = s->deflateParams_out_length ; | |
1042 | /* printf("Copy %d bytes saved data\n", plen); */ | |
1043 | if (s->stream.avail_out < plen) { | |
1044 | /* printf("GROW from %d to %d\n", s->stream.avail_out, | |
1045 | SvLEN(output) + plen - s->stream.avail_out); */ | |
1046 | Sv_Grow(output, SvLEN(output) + plen - s->stream.avail_out) ; | |
1047 | } | |
1048 | ||
1049 | Copy(s->stream.next_out, s->deflateParams_out_buffer, plen, Bytef) ; | |
1050 | cur_length = cur_length + plen; | |
1051 | SvCUR_set(output, cur_length); | |
1052 | s->stream.next_out += plen ; | |
1053 | s->stream.avail_out = SvLEN(output) - cur_length ; | |
1054 | increment = s->stream.avail_out; | |
1055 | s->deflateParams_out_length = 0; | |
1056 | } | |
1057 | #endif | |
1058 | ||
1059 | for (;;) { | |
1060 | if (s->stream.avail_out == 0) { | |
1061 | /* consumed all the available output, so extend it */ | |
258133d1 | 1062 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f PM |
1063 | cur_length += increment ; |
1064 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; | |
258133d1 | 1065 | increment = bufinc ; |
25f0751f | 1066 | s->stream.avail_out = increment; |
258133d1 | 1067 | bufinc *= 2 ; |
25f0751f PM |
1068 | } |
1069 | RETVAL = deflate(&(s->stream), f); | |
1070 | ||
1071 | /* deflate has finished flushing only when it hasn't used up | |
1072 | * all the available space in the output buffer: | |
1073 | */ | |
1074 | if (s->stream.avail_out != 0 || RETVAL != Z_OK ) | |
1075 | break; | |
1076 | } | |
1077 | ||
1078 | RETVAL = (RETVAL == Z_STREAM_END ? Z_OK : RETVAL) ; | |
1079 | s->last_error = RETVAL ; | |
1080 | ||
1081 | s->compressedBytes += cur_length + increment - prefix - s->stream.avail_out ; | |
1082 | ||
1083 | if (RETVAL == Z_OK) { | |
1084 | SvPOK_only(output); | |
1085 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; | |
4e7676c7 | 1086 | SvSETMAGIC(output); |
25f0751f PM |
1087 | } |
1088 | OUTPUT: | |
1089 | RETVAL | |
25f0751f PM |
1090 | |
1091 | ||
1092 | DualType | |
1093 | _deflateParams(s, flags, level, strategy, bufsize) | |
1094 | Compress::Raw::Zlib::deflateStream s | |
1095 | int flags | |
1096 | int level | |
1097 | int strategy | |
1098 | uLong bufsize | |
1099 | CODE: | |
1100 | /* printf("_deflateParams(Flags %d Level %d Strategy %d Bufsize %d)\n", flags, level, strategy, bufsize); | |
1101 | printf("Before -- Level %d, Strategy %d, Bufsize %d\n", s->Level, s->Strategy, s->bufsize); */ | |
1102 | if (flags & 1) | |
1103 | s->Level = level ; | |
1104 | if (flags & 2) | |
1105 | s->Strategy = strategy ; | |
1106 | if (flags & 4) { | |
1107 | s->bufsize = bufsize; | |
25f0751f PM |
1108 | } |
1109 | /* printf("After -- Level %d, Strategy %d, Bufsize %d\n", s->Level, s->Strategy, s->bufsize);*/ | |
1110 | #ifdef SETP_BYTE | |
1111 | s->stream.avail_in = 0; | |
1112 | s->stream.next_out = &(s->deflateParams_out_byte) ; | |
1113 | s->stream.avail_out = 1; | |
1114 | RETVAL = deflateParams(&(s->stream), s->Level, s->Strategy); | |
1115 | s->deflateParams_out_valid = | |
1116 | (RETVAL == Z_OK && s->stream.avail_out == 0) ; | |
1117 | /* printf("RETVAL %d, avail out %d, byte %c\n", RETVAL, s->stream.avail_out, s->deflateParams_out_byte); */ | |
1118 | #else | |
1119 | /* printf("Level %d Strategy %d, Prev Len %d\n", | |
1120 | s->Level, s->Strategy, s->deflateParams_out_length); */ | |
1121 | s->stream.avail_in = 0; | |
1122 | if (s->deflateParams_out_buffer == NULL) | |
1123 | s->deflateParams_out_buffer = safemalloc(deflateParams_BUFFER_SIZE); | |
1124 | s->stream.next_out = s->deflateParams_out_buffer ; | |
1125 | s->stream.avail_out = deflateParams_BUFFER_SIZE; | |
1126 | ||
1127 | RETVAL = deflateParams(&(s->stream), s->Level, s->Strategy); | |
1128 | s->deflateParams_out_length = deflateParams_BUFFER_SIZE - s->stream.avail_out; | |
1129 | /* printf("RETVAL %d, length out %d, avail %d\n", | |
1130 | RETVAL, s->deflateParams_out_length, s->stream.avail_out ); */ | |
1131 | #endif | |
1132 | OUTPUT: | |
1133 | RETVAL | |
1134 | ||
1135 | ||
1136 | int | |
1137 | get_Level(s) | |
1138 | Compress::Raw::Zlib::deflateStream s | |
1139 | CODE: | |
1140 | RETVAL = s->Level ; | |
1141 | OUTPUT: | |
1142 | RETVAL | |
1143 | ||
1144 | int | |
1145 | get_Strategy(s) | |
1146 | Compress::Raw::Zlib::deflateStream s | |
1147 | CODE: | |
1148 | RETVAL = s->Strategy ; | |
1149 | OUTPUT: | |
1150 | RETVAL | |
1151 | ||
1152 | ||
1153 | uLong | |
1154 | get_Bufsize(s) | |
1155 | Compress::Raw::Zlib::deflateStream s | |
1156 | CODE: | |
1157 | RETVAL = s->bufsize ; | |
1158 | OUTPUT: | |
1159 | RETVAL | |
1160 | ||
1161 | ||
1162 | int | |
1163 | status(s) | |
1164 | Compress::Raw::Zlib::deflateStream s | |
1165 | CODE: | |
1166 | RETVAL = s->last_error ; | |
1167 | OUTPUT: | |
1168 | RETVAL | |
1169 | ||
1170 | uLong | |
1171 | crc32(s) | |
1172 | Compress::Raw::Zlib::deflateStream s | |
1173 | CODE: | |
1174 | RETVAL = s->crc32 ; | |
1175 | OUTPUT: | |
1176 | RETVAL | |
1177 | ||
1178 | uLong | |
1179 | dict_adler(s) | |
1180 | Compress::Raw::Zlib::deflateStream s | |
1181 | CODE: | |
1182 | RETVAL = s->dict_adler ; | |
1183 | OUTPUT: | |
1184 | RETVAL | |
1185 | ||
1186 | uLong | |
1187 | adler32(s) | |
1188 | Compress::Raw::Zlib::deflateStream s | |
1189 | CODE: | |
1190 | RETVAL = s->adler32 ; | |
1191 | OUTPUT: | |
1192 | RETVAL | |
1193 | ||
1194 | uLong | |
1195 | compressedBytes(s) | |
1196 | Compress::Raw::Zlib::deflateStream s | |
1197 | CODE: | |
1198 | RETVAL = s->compressedBytes; | |
1199 | OUTPUT: | |
1200 | RETVAL | |
1201 | ||
1202 | uLong | |
1203 | uncompressedBytes(s) | |
1204 | Compress::Raw::Zlib::deflateStream s | |
1205 | CODE: | |
1206 | RETVAL = s->uncompressedBytes; | |
1207 | OUTPUT: | |
1208 | RETVAL | |
1209 | ||
1210 | uLong | |
1211 | total_in(s) | |
1212 | Compress::Raw::Zlib::deflateStream s | |
1213 | CODE: | |
1214 | RETVAL = s->stream.total_in ; | |
1215 | OUTPUT: | |
1216 | RETVAL | |
1217 | ||
1218 | uLong | |
1219 | total_out(s) | |
1220 | Compress::Raw::Zlib::deflateStream s | |
1221 | CODE: | |
1222 | RETVAL = s->stream.total_out ; | |
1223 | OUTPUT: | |
1224 | RETVAL | |
1225 | ||
1226 | char* | |
1227 | msg(s) | |
1228 | Compress::Raw::Zlib::deflateStream s | |
1229 | CODE: | |
1230 | RETVAL = s->stream.msg; | |
1231 | OUTPUT: | |
1232 | RETVAL | |
1233 | ||
1234 | int | |
1235 | deflateTune(s, good_length, max_lazy, nice_length, max_chain) | |
1236 | Compress::Raw::Zlib::deflateStream s | |
1237 | int good_length | |
1238 | int max_lazy | |
1239 | int nice_length | |
1240 | int max_chain | |
1241 | CODE: | |
1242 | #ifndef AT_LEAST_ZLIB_1_2_2_3 | |
1243 | good_length = good_length; max_lazy = max_lazy ; /* Silence -Wall */ | |
1244 | nice_length = nice_length; max_chain = max_chain; /* Silence -Wall */ | |
1245 | croak("deflateTune needs zlib 1.2.2.3 or better"); | |
1246 | #else | |
1247 | RETVAL = deflateTune(&(s->stream), good_length, max_lazy, nice_length, max_chain); | |
1248 | #endif | |
1249 | OUTPUT: | |
1250 | RETVAL | |
1251 | ||
1252 | ||
1253 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::inflateStream | |
1254 | ||
1255 | void | |
1256 | DispStream(s, message=NULL) | |
1257 | Compress::Raw::Zlib::inflateStream s | |
1258 | char * message | |
1259 | ||
1260 | DualType | |
1261 | inflateReset(s) | |
1262 | Compress::Raw::Zlib::inflateStream s | |
1263 | CODE: | |
1264 | RETVAL = inflateReset(&(s->stream)) ; | |
1265 | if (RETVAL == Z_OK) { | |
1266 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; | |
1267 | } | |
1268 | OUTPUT: | |
1269 | RETVAL | |
1270 | ||
1271 | DualType | |
1272 | inflate (s, buf, output, eof=FALSE) | |
1273 | Compress::Raw::Zlib::inflateStream s | |
1274 | SV * buf | |
1275 | SV * output | |
1276 | bool eof | |
1277 | uInt cur_length = 0; | |
1278 | uInt prefix_length = 0; | |
319fab50 | 1279 | int increment = 0; |
25f0751f | 1280 | STRLEN stmp = NO_INIT |
258133d1 | 1281 | uLong bufinc = NO_INIT |
25f0751f PM |
1282 | PREINIT: |
1283 | #ifdef UTF8_AVAILABLE | |
1284 | bool out_utf8 = FALSE; | |
1285 | #endif | |
1286 | CODE: | |
258133d1 | 1287 | bufinc = s->bufsize; |
25f0751f PM |
1288 | /* If the buffer is a reference, dereference it */ |
1289 | buf = deRef(buf, "inflate") ; | |
1290 | ||
1291 | if (s->flags & FLAG_CONSUME_INPUT && SvREADONLY(buf)) | |
1292 | croak("Compress::Raw::Zlib::Inflate::inflate input parameter cannot be read-only when ConsumeInput is specified"); | |
1293 | #ifdef UTF8_AVAILABLE | |
1294 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) | |
1295 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflate input parameter"); | |
1296 | #endif | |
1297 | ||
1298 | /* initialise the input buffer */ | |
1299 | s->stream.next_in = (Bytef*)SvPVbyte_force(buf, stmp) ; | |
1300 | s->stream.avail_in = SvCUR(buf) ; | |
1301 | ||
1302 | /* and retrieve the output buffer */ | |
1303 | output = deRef_l(output, "inflate") ; | |
1304 | #ifdef UTF8_AVAILABLE | |
1305 | if (DO_UTF8(output)) | |
1306 | out_utf8 = TRUE ; | |
1307 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) | |
1308 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflate output parameter"); | |
1309 | #endif | |
1310 | if((s->flags & FLAG_APPEND) != FLAG_APPEND) { | |
1311 | SvCUR_set(output, 0); | |
1312 | } | |
319fab50 PM |
1313 | |
1314 | /* Assume no output buffer - the code below will update if there is any available */ | |
1315 | s->stream.avail_out = 0; | |
1316 | ||
1317 | ||
25f0751f PM |
1318 | if (SvLEN(output)) { |
1319 | prefix_length = cur_length = SvCUR(output) ; | |
319fab50 PM |
1320 | |
1321 | if (s->flags & FLAG_LIMIT_OUTPUT && SvLEN(output) - cur_length - 1 < bufinc) | |
1322 | { | |
1323 | Sv_Grow(output, bufinc + cur_length + 1) ; | |
1324 | } | |
1325 | ||
1326 | /* Only setup the stream output pointers if there is spare | |
1327 | capacity in the outout SV | |
1328 | */ | |
1329 | if (SvLEN(output) > cur_length + 1) | |
1330 | { | |
1331 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; | |
1332 | increment = SvLEN(output) - cur_length - 1; | |
1333 | s->stream.avail_out = increment; | |
1334 | } | |
25f0751f | 1335 | } |
319fab50 PM |
1336 | |
1337 | ||
25f0751f PM |
1338 | s->bytesInflated = 0; |
1339 | ||
e11a3f9e | 1340 | RETVAL = Z_OK; |
25f0751f | 1341 | |
e11a3f9e | 1342 | while (RETVAL == Z_OK) { |
319fab50 | 1343 | if (s->stream.avail_out == 0) { |
25f0751f | 1344 | /* out of space in the output buffer so make it bigger */ |
7efcbeef | 1345 | Sv_Grow(output, SvLEN(output) + bufinc +1) ; |
25f0751f PM |
1346 | cur_length += increment ; |
1347 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; | |
258133d1 | 1348 | increment = bufinc ; |
25f0751f | 1349 | s->stream.avail_out = increment; |
258133d1 | 1350 | bufinc *= 2 ; |
25f0751f PM |
1351 | } |
1352 | ||
319fab50 PM |
1353 | /* printf("INFLATE Availl In %d, Out %d\n", s->stream.avail_in, |
1354 | s->stream.avail_out); | |
1355 | DispStream(s, "BEFORE"); | |
1356 | Perl_sv_dump(output); */ | |
25f0751f | 1357 | RETVAL = inflate(&(s->stream), Z_SYNC_FLUSH); |
319fab50 PM |
1358 | /* printf("INFLATE returned %d %s, avail in %d, out %d\n", RETVAL, |
1359 | GetErrorString(RETVAL), s->stream.avail_in, s->stream.avail_out); */ | |
25f0751f | 1360 | |
9253672d SH |
1361 | |
1362 | if (RETVAL == Z_NEED_DICT && s->dictionary) { | |
1363 | s->dict_adler = s->stream.adler ; | |
1364 | RETVAL = inflateSetDictionary(&(s->stream), | |
1365 | (const Bytef*)SvPVbyte_nolen(s->dictionary), | |
1366 | SvCUR(s->dictionary)); | |
319fab50 PM |
1367 | if (RETVAL == Z_OK) |
1368 | continue; | |
9253672d SH |
1369 | } |
1370 | ||
319fab50 PM |
1371 | if (s->flags & FLAG_LIMIT_OUTPUT && |
1372 | (RETVAL == Z_OK || RETVAL == Z_BUF_ERROR )) | |
1373 | break; | |
1374 | ||
1375 | if (RETVAL == Z_STREAM_ERROR || RETVAL == Z_MEM_ERROR || | |
1376 | RETVAL == Z_DATA_ERROR || RETVAL == Z_STREAM_END ) | |
25f0751f PM |
1377 | break ; |
1378 | ||
1379 | if (RETVAL == Z_BUF_ERROR) { | |
1380 | if (s->stream.avail_out == 0) | |
1381 | continue ; | |
1382 | if (s->stream.avail_in == 0) { | |
1383 | RETVAL = Z_OK ; | |
1384 | break ; | |
1385 | } | |
1386 | } | |
25f0751f PM |
1387 | } |
1388 | #ifdef NEED_DUMMY_BYTE_AT_END | |
9253672d | 1389 | if (eof && RETVAL == Z_OK && s->flags & FLAG_LIMIT_OUTPUT == 0) { |
25f0751f PM |
1390 | Bytef* nextIn = s->stream.next_in; |
1391 | uInt availIn = s->stream.avail_in; | |
1392 | s->stream.next_in = (Bytef*) " "; | |
1393 | s->stream.avail_in = 1; | |
1394 | if (s->stream.avail_out == 0) { | |
1395 | /* out of space in the output buffer so make it bigger */ | |
258133d1 | 1396 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f PM |
1397 | cur_length += increment ; |
1398 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; | |
258133d1 | 1399 | increment = bufinc ; |
25f0751f | 1400 | s->stream.avail_out = increment; |
258133d1 | 1401 | bufinc *= 2 ; |
25f0751f PM |
1402 | } |
1403 | RETVAL = inflate(&(s->stream), Z_SYNC_FLUSH); | |
1404 | s->stream.next_in = nextIn ; | |
1405 | s->stream.avail_in = availIn ; | |
1406 | } | |
1407 | #endif | |
1408 | ||
1409 | s->last_error = RETVAL ; | |
319fab50 PM |
1410 | if (RETVAL == Z_OK || RETVAL == Z_STREAM_END || RETVAL == Z_BUF_ERROR || RETVAL == Z_DATA_ERROR) { |
1411 | unsigned in ; | |
25f0751f PM |
1412 | |
1413 | s->bytesInflated = cur_length + increment - s->stream.avail_out - prefix_length; | |
1414 | s->uncompressedBytes += s->bytesInflated ; | |
1415 | s->compressedBytes += SvCUR(buf) - s->stream.avail_in ; | |
1416 | ||
1417 | SvPOK_only(output); | |
1418 | SvCUR_set(output, prefix_length + s->bytesInflated) ; | |
1419 | *SvEND(output) = '\0'; | |
1420 | #ifdef UTF8_AVAILABLE | |
1421 | if (out_utf8) | |
1422 | sv_utf8_upgrade(output); | |
1423 | #endif | |
4e7676c7 | 1424 | SvSETMAGIC(output); |
25f0751f PM |
1425 | |
1426 | if (s->flags & FLAG_CRC32 ) | |
1427 | s->crc32 = crc32(s->crc32, | |
1428 | (const Bytef*)SvPVbyte_nolen(output)+prefix_length, | |
1429 | SvCUR(output)-prefix_length) ; | |
1430 | ||
1431 | if (s->flags & FLAG_ADLER32) | |
1432 | s->adler32 = adler32(s->adler32, | |
1433 | (const Bytef*)SvPVbyte_nolen(output)+prefix_length, | |
1434 | SvCUR(output)-prefix_length) ; | |
1435 | ||
1436 | /* fix the input buffer */ | |
9253672d | 1437 | if (s->flags & FLAG_CONSUME_INPUT || s->flags & FLAG_LIMIT_OUTPUT) { |
25f0751f PM |
1438 | in = s->stream.avail_in ; |
1439 | SvCUR_set(buf, in) ; | |
1440 | if (in) | |
1441 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; | |
1442 | *SvEND(buf) = '\0'; | |
1443 | SvSETMAGIC(buf); | |
1444 | } | |
319fab50 | 1445 | |
25f0751f PM |
1446 | } |
1447 | OUTPUT: | |
1448 | RETVAL | |
25f0751f PM |
1449 | |
1450 | uLong | |
1451 | inflateCount(s) | |
1452 | Compress::Raw::Zlib::inflateStream s | |
1453 | CODE: | |
1454 | RETVAL = s->bytesInflated; | |
1455 | OUTPUT: | |
1456 | RETVAL | |
1457 | ||
1458 | uLong | |
1459 | compressedBytes(s) | |
1460 | Compress::Raw::Zlib::inflateStream s | |
1461 | CODE: | |
1462 | RETVAL = s->compressedBytes; | |
1463 | OUTPUT: | |
1464 | RETVAL | |
1465 | ||
1466 | uLong | |
1467 | uncompressedBytes(s) | |
1468 | Compress::Raw::Zlib::inflateStream s | |
1469 | CODE: | |
1470 | RETVAL = s->uncompressedBytes; | |
1471 | OUTPUT: | |
1472 | RETVAL | |
1473 | ||
1474 | ||
1475 | DualType | |
1476 | inflateSync (s, buf) | |
1477 | Compress::Raw::Zlib::inflateStream s | |
1478 | SV * buf | |
1479 | CODE: | |
1480 | ||
1481 | /* If the buffer is a reference, dereference it */ | |
1482 | buf = deRef(buf, "inflateSync") ; | |
1483 | #ifdef UTF8_AVAILABLE | |
1484 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) | |
1485 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflateSync"); | |
1486 | #endif | |
1487 | ||
1488 | /* initialise the input buffer */ | |
1489 | s->stream.next_in = (Bytef*)SvPVbyte_nolen(buf) ; | |
1490 | s->stream.avail_in = SvCUR(buf) ; | |
1491 | ||
1492 | /* inflateSync doesn't create any output */ | |
1493 | s->stream.next_out = (Bytef*) NULL; | |
1494 | s->stream.avail_out = 0; | |
1495 | ||
1496 | RETVAL = inflateSync(&(s->stream)); | |
1497 | s->last_error = RETVAL ; | |
1498 | ||
1499 | /* fix the input buffer */ | |
1500 | { | |
1501 | unsigned in = s->stream.avail_in ; | |
1502 | SvCUR_set(buf, in) ; | |
1503 | if (in) | |
1504 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; | |
1505 | *SvEND(buf) = '\0'; | |
1506 | SvSETMAGIC(buf); | |
1507 | } | |
1508 | OUTPUT: | |
1509 | RETVAL | |
25f0751f PM |
1510 | |
1511 | void | |
1512 | DESTROY(s) | |
1513 | Compress::Raw::Zlib::inflateStream s | |
1514 | CODE: | |
1515 | inflateEnd(&s->stream) ; | |
1516 | if (s->dictionary) | |
1517 | SvREFCNT_dec(s->dictionary) ; | |
1518 | #ifndef SETP_BYTE | |
1519 | if (s->deflateParams_out_buffer) | |
1520 | Safefree(s->deflateParams_out_buffer); | |
1521 | #endif | |
1522 | #ifdef MAGIC_APPEND | |
1523 | if (s->window) | |
1524 | Safefree(s->window); | |
1525 | #endif | |
1526 | Safefree(s) ; | |
1527 | ||
1528 | ||
1529 | uLong | |
1530 | status(s) | |
1531 | Compress::Raw::Zlib::inflateStream s | |
1532 | CODE: | |
1533 | RETVAL = s->last_error ; | |
1534 | OUTPUT: | |
1535 | RETVAL | |
1536 | ||
1537 | uLong | |
1538 | crc32(s) | |
1539 | Compress::Raw::Zlib::inflateStream s | |
1540 | CODE: | |
1541 | RETVAL = s->crc32 ; | |
1542 | OUTPUT: | |
1543 | RETVAL | |
1544 | ||
1545 | uLong | |
1546 | dict_adler(s) | |
1547 | Compress::Raw::Zlib::inflateStream s | |
1548 | CODE: | |
1549 | RETVAL = s->dict_adler ; | |
1550 | OUTPUT: | |
1551 | RETVAL | |
1552 | ||
1553 | uLong | |
1554 | total_in(s) | |
1555 | Compress::Raw::Zlib::inflateStream s | |
1556 | CODE: | |
1557 | RETVAL = s->stream.total_in ; | |
1558 | OUTPUT: | |
1559 | RETVAL | |
1560 | ||
1561 | uLong | |
1562 | adler32(s) | |
1563 | Compress::Raw::Zlib::inflateStream s | |
1564 | CODE: | |
1565 | RETVAL = s->adler32 ; | |
1566 | OUTPUT: | |
1567 | RETVAL | |
1568 | ||
1569 | uLong | |
1570 | total_out(s) | |
1571 | Compress::Raw::Zlib::inflateStream s | |
1572 | CODE: | |
1573 | RETVAL = s->stream.total_out ; | |
1574 | OUTPUT: | |
1575 | RETVAL | |
1576 | ||
1577 | char* | |
1578 | msg(s) | |
1579 | Compress::Raw::Zlib::inflateStream s | |
1580 | CODE: | |
1581 | RETVAL = s->stream.msg; | |
1582 | OUTPUT: | |
1583 | RETVAL | |
1584 | ||
1585 | ||
1586 | uLong | |
1587 | get_Bufsize(s) | |
1588 | Compress::Raw::Zlib::inflateStream s | |
1589 | CODE: | |
1590 | RETVAL = s->bufsize ; | |
1591 | OUTPUT: | |
1592 | RETVAL | |
1593 | ||
1594 | bool | |
1595 | set_Append(s, mode) | |
1596 | Compress::Raw::Zlib::inflateStream s | |
1597 | bool mode | |
1598 | CODE: | |
1599 | RETVAL = ((s->flags & FLAG_APPEND) == FLAG_APPEND); | |
1600 | if (mode) | |
1601 | s->flags |= FLAG_APPEND ; | |
1602 | else | |
1603 | s->flags &= ~FLAG_APPEND ; | |
1604 | OUTPUT: | |
1605 | RETVAL | |
1606 | ||
1607 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::inflateScanStream | |
1608 | ||
1609 | void | |
1610 | DESTROY(s) | |
1611 | Compress::Raw::Zlib::inflateScanStream s | |
1612 | CODE: | |
1613 | inflateEnd(&s->stream) ; | |
1614 | if (s->dictionary) | |
1615 | SvREFCNT_dec(s->dictionary) ; | |
1616 | #ifndef SETP_BYTE | |
1617 | if (s->deflateParams_out_buffer) | |
1618 | Safefree(s->deflateParams_out_buffer); | |
1619 | #endif | |
1620 | #ifdef MAGIC_APPEND | |
1621 | if (s->window) | |
1622 | Safefree(s->window); | |
1623 | #endif | |
1624 | Safefree(s) ; | |
1625 | ||
1626 | void | |
1627 | DispStream(s, message=NULL) | |
1628 | Compress::Raw::Zlib::inflateScanStream s | |
1629 | char * message | |
1630 | ||
1631 | DualType | |
1632 | inflateReset(s) | |
1633 | Compress::Raw::Zlib::inflateScanStream s | |
1634 | CODE: | |
1635 | RETVAL = inflateReset(&(s->stream)) ; | |
1636 | if (RETVAL == Z_OK) { | |
1637 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; | |
1638 | } | |
1639 | OUTPUT: | |
1640 | RETVAL | |
1641 | ||
1642 | DualType | |
1643 | scan(s, buf, out=NULL, eof=FALSE) | |
1644 | Compress::Raw::Zlib::inflateScanStream s | |
1645 | SV * buf | |
1646 | SV * out | |
1647 | bool eof | |
1648 | bool eof_mode = FALSE; | |
1649 | int start_len = NO_INIT | |
1650 | STRLEN stmp = NO_INIT | |
1651 | CODE: | |
1652 | /* If the input buffer is a reference, dereference it */ | |
1653 | #ifndef MAGIC_APPEND | |
1654 | buf = buf; | |
1655 | croak("scan needs zlib 1.2.1 or better"); | |
1656 | #else | |
1657 | buf = deRef(buf, "inflateScan") ; | |
1658 | #ifdef UTF8_AVAILABLE | |
1659 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) | |
1660 | croak("Wide character in Compress::Raw::Zlib::InflateScan::scan input parameter"); | |
1661 | #endif | |
1662 | /* initialise the input buffer */ | |
1663 | s->stream.next_in = (Bytef*)SvPVbyte_force(buf, stmp) ; | |
1664 | s->stream.avail_in = SvCUR(buf) ; | |
1665 | start_len = s->stream.avail_in ; | |
1666 | s->bytesInflated = 0 ; | |
1667 | do | |
1668 | { | |
1669 | if (s->stream.avail_in == 0) { | |
1670 | RETVAL = Z_OK ; | |
1671 | break ; | |
1672 | } | |
1673 | ||
1674 | /* set up output to next available section of sliding window */ | |
1675 | s->stream.avail_out = WINDOW_SIZE - s->window_have; | |
1676 | s->stream.next_out = s->window + s->window_have; | |
1677 | ||
1678 | /* DispStream(s, "before inflate\n"); */ | |
1679 | ||
1680 | /* inflate and check for errors */ | |
1681 | RETVAL = inflate(&(s->stream), Z_BLOCK); | |
1682 | ||
1683 | if (start_len > 1 && ! eof_mode) | |
1684 | s->window_lastByte = *(s->stream.next_in - 1 ) ; | |
1685 | ||
1686 | if (RETVAL == Z_STREAM_ERROR || RETVAL == Z_MEM_ERROR || | |
1687 | RETVAL == Z_DATA_ERROR ) | |
1688 | break ; | |
1689 | ||
1690 | if (s->flags & FLAG_CRC32 ) | |
1691 | s->crc32 = crc32(s->crc32, s->window + s->window_have, | |
1692 | WINDOW_SIZE - s->window_have - s->stream.avail_out); | |
1693 | ||
1694 | if (s->flags & FLAG_ADLER32) | |
1695 | s->adler32 = adler32(s->adler32, s->window + s->window_have, | |
1696 | WINDOW_SIZE - s->window_have - s->stream.avail_out); | |
1697 | ||
1698 | s->uncompressedBytes = | |
1699 | s->bytesInflated += WINDOW_SIZE - s->window_have - s->stream.avail_out; | |
1700 | ||
1701 | if (s->stream.avail_out) | |
1702 | s->window_have = WINDOW_SIZE - s->stream.avail_out; | |
1703 | else { | |
1704 | s->window_have = 0; | |
1705 | s->window_full = 1; | |
1706 | } | |
1707 | ||
1708 | /* process end of block */ | |
1709 | if (s->stream.data_type & 128) { | |
1710 | if (s->stream.data_type & 64) { | |
1711 | s->window_left = s->stream.data_type & 0x1f; | |
1712 | } | |
1713 | else { | |
1714 | s->window_lastbit = s->stream.data_type & 0x1f; | |
1715 | s->lastBlockOffset = s->stream.total_in; | |
1716 | } | |
1717 | } | |
1718 | ||
1719 | } while (RETVAL != Z_STREAM_END); | |
1720 | ||
1721 | s->last_error = RETVAL ; | |
1722 | s->window_lastoff = s->stream.total_in ; | |
1723 | s->compressedBytes += SvCUR(buf) - s->stream.avail_in ; | |
1724 | ||
1725 | if (RETVAL == Z_STREAM_END) | |
1726 | { | |
1727 | s->matchedEndBlock = 1 ; | |
1728 | ||
1729 | /* save the location of the end of the compressed data */ | |
1730 | s->window_end = SvCUR(buf) - s->stream.avail_in - 1 ; | |
1731 | s->window_endOffset = s->stream.total_in ; | |
1732 | if (s->window_left) | |
1733 | { | |
1734 | -- s->window_endOffset ; | |
1735 | } | |
1736 | ||
1737 | /* if window wrapped, build dictionary from window by rotating */ | |
1738 | if (s->window_full) { | |
1739 | rotate(s->window, WINDOW_SIZE, s->window_have); | |
1740 | s->window_have = WINDOW_SIZE; | |
1741 | } | |
1742 | ||
1743 | /* if (s->flags & FLAG_CONSUME_INPUT) { */ | |
1744 | if (1) { | |
1745 | unsigned in = s->stream.avail_in ; | |
1746 | SvCUR_set(buf, in) ; | |
1747 | if (in) | |
1748 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; | |
1749 | *SvEND(buf) = '\0'; | |
1750 | SvSETMAGIC(buf); | |
1751 | } | |
1752 | } | |
1753 | #endif | |
1754 | OUTPUT: | |
1755 | RETVAL | |
1756 | ||
1757 | ||
1758 | uLong | |
1759 | getEndOffset(s) | |
1760 | Compress::Raw::Zlib::inflateScanStream s | |
1761 | CODE: | |
1762 | #ifndef MAGIC_APPEND | |
1763 | croak("getEndOffset needs zlib 1.2.1 or better"); | |
1764 | #else | |
1765 | RETVAL = s->window_endOffset; | |
1766 | #endif | |
1767 | OUTPUT: | |
1768 | RETVAL | |
1769 | ||
1770 | uLong | |
1771 | inflateCount(s) | |
1772 | Compress::Raw::Zlib::inflateScanStream s | |
1773 | CODE: | |
1774 | #ifndef MAGIC_APPEND | |
1775 | croak("inflateCount needs zlib 1.2.1 or better"); | |
1776 | #else | |
1777 | RETVAL = s->bytesInflated; | |
1778 | #endif | |
1779 | OUTPUT: | |
1780 | RETVAL | |
1781 | ||
1782 | uLong | |
1783 | compressedBytes(s) | |
1784 | Compress::Raw::Zlib::inflateScanStream s | |
1785 | CODE: | |
1786 | RETVAL = s->compressedBytes; | |
1787 | OUTPUT: | |
1788 | RETVAL | |
1789 | ||
1790 | uLong | |
1791 | uncompressedBytes(s) | |
1792 | Compress::Raw::Zlib::inflateScanStream s | |
1793 | CODE: | |
1794 | RETVAL = s->uncompressedBytes; | |
1795 | OUTPUT: | |
1796 | RETVAL | |
1797 | ||
1798 | ||
1799 | uLong | |
1800 | getLastBlockOffset(s) | |
1801 | Compress::Raw::Zlib::inflateScanStream s | |
1802 | CODE: | |
1803 | #ifndef MAGIC_APPEND | |
1804 | croak("getLastBlockOffset needs zlib 1.2.1 or better"); | |
1805 | #else | |
1806 | RETVAL = s->lastBlockOffset - (s->window_lastbit != 0); | |
1807 | #endif | |
1808 | OUTPUT: | |
1809 | RETVAL | |
1810 | ||
1811 | uLong | |
1812 | getLastBufferOffset(s) | |
1813 | Compress::Raw::Zlib::inflateScanStream s | |
1814 | CODE: | |
1815 | #ifndef MAGIC_APPEND | |
1816 | croak("getLastBufferOffset needs zlib 1.2.1 or better"); | |
1817 | #else | |
1818 | RETVAL = s->window_lastoff; | |
1819 | #endif | |
1820 | OUTPUT: | |
1821 | RETVAL | |
1822 | ||
1823 | void | |
1824 | resetLastBlockByte(s, byte) | |
1825 | Compress::Raw::Zlib::inflateScanStream s | |
1826 | unsigned char* byte | |
1827 | CODE: | |
1828 | #ifndef MAGIC_APPEND | |
1829 | croak("resetLastBlockByte needs zlib 1.2.1 or better"); | |
1830 | #else | |
cb7abd7f PM |
1831 | if (byte != NULL) |
1832 | *byte = *byte ^ (1 << ((8 - s->window_lastbit) & 7)); | |
25f0751f PM |
1833 | #endif |
1834 | ||
1835 | ||
1836 | void | |
1837 | _createDeflateStream(inf_s, flags,level, method, windowBits, memLevel, strategy, bufsize) | |
1838 | Compress::Raw::Zlib::inflateScanStream inf_s | |
1839 | int flags | |
1840 | int level | |
1841 | int method | |
1842 | int windowBits | |
1843 | int memLevel | |
1844 | int strategy | |
1845 | uLong bufsize | |
1846 | PPCODE: | |
1847 | { | |
1848 | #ifndef MAGIC_APPEND | |
1849 | flags = flags; | |
1850 | level = level ; | |
1851 | method = method; | |
1852 | windowBits = windowBits; | |
1853 | memLevel = memLevel; | |
1854 | strategy = strategy; | |
1855 | bufsize= bufsize; | |
1856 | croak("_createDeflateStream needs zlib 1.2.1 or better"); | |
1857 | #else | |
1858 | int err ; | |
1859 | deflateStream s ; | |
1860 | ||
1861 | if (trace) | |
1862 | warn("in _createDeflateStream(level=%d, method=%d, windowBits=%d, memLevel=%d, strategy=%d, bufsize=%lu\n", | |
1863 | level, method, windowBits, memLevel, strategy, bufsize) ; | |
1864 | if ((s = InitStream() )) { | |
1865 | ||
1866 | s->Level = level; | |
1867 | s->Method = method; | |
1868 | s->WindowBits = windowBits; | |
1869 | s->MemLevel = memLevel; | |
1870 | s->Strategy = strategy; | |
1871 | ||
1872 | err = deflateInit2(&(s->stream), level, | |
1873 | method, windowBits, memLevel, strategy); | |
1874 | ||
1875 | if (err == Z_OK) { | |
1876 | err = deflateSetDictionary(&(s->stream), inf_s->window, inf_s->window_have); | |
1877 | s->dict_adler = s->stream.adler ; | |
1878 | } | |
1879 | ||
1880 | if (err != Z_OK) { | |
1881 | Safefree(s) ; | |
1882 | s = NULL ; | |
1883 | } | |
1884 | else { | |
1885 | PostInitStream(s, flags, bufsize, windowBits) ; | |
1886 | s->crc32 = inf_s->crc32; | |
1887 | s->adler32 = inf_s->adler32; | |
1888 | s->stream.adler = inf_s->stream.adler ; | |
1889 | /* s->stream.total_out = inf_s->bytesInflated ; */ | |
1890 | s->stream.total_in = inf_s->stream.total_out ; | |
1891 | if (inf_s->window_left) { | |
1892 | /* printf("** window_left %d, window_lastByte %d\n", inf_s->window_left, inf_s->window_lastByte); */ | |
1893 | deflatePrime(&(s->stream), 8 - inf_s->window_left, inf_s->window_lastByte); | |
1894 | } | |
1895 | } | |
1896 | } | |
1897 | else | |
1898 | err = Z_MEM_ERROR ; | |
1899 | ||
1900 | XPUSHs(sv_setref_pv(sv_newmortal(), | |
1901 | "Compress::Raw::Zlib::deflateStream", (void*)s)); | |
1902 | if (GIMME == G_ARRAY) { | |
1903 | SV * sv = sv_2mortal(newSViv(err)) ; | |
1904 | setDUALstatus(sv, err); | |
1905 | XPUSHs(sv) ; | |
1906 | } | |
1907 | #endif | |
1908 | } | |
1909 | ||
1910 | DualType | |
1911 | status(s) | |
1912 | Compress::Raw::Zlib::inflateScanStream s | |
1913 | CODE: | |
1914 | RETVAL = s->last_error ; | |
1915 | OUTPUT: | |
1916 | RETVAL | |
1917 | ||
1918 | uLong | |
1919 | crc32(s) | |
1920 | Compress::Raw::Zlib::inflateScanStream s | |
1921 | CODE: | |
1922 | RETVAL = s->crc32 ; | |
1923 | OUTPUT: | |
1924 | RETVAL | |
1925 | ||
1926 | ||
1927 | uLong | |
1928 | adler32(s) | |
1929 | Compress::Raw::Zlib::inflateScanStream s | |
1930 | CODE: | |
1931 | RETVAL = s->adler32 ; | |
1932 | OUTPUT: | |
1933 | RETVAL | |
1934 |