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25f0751f |
1 | /* Filename: Zlib.xs |
2 | * Author : Paul Marquess, <pmqs@cpan.org> |
3 | * Created : 22nd January 1996 |
4 | * Version : 2.000 |
5 | * |
6 | * Copyright (c) 1995-2005 Paul Marquess. All rights reserved. |
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 | |
53 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1223 |
54 | # define AT_LEAST_ZLIB_1_2_2_3 |
55 | #endif |
56 | |
57 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1230 |
58 | # define AT_LEAST_ZLIB_1_2_3 |
59 | #endif |
60 | |
258133d1 |
61 | #define NEED_sv_2pvbyte |
62 | #define NEED_sv_2pv_nolen |
63 | #include "ppport.h" |
25f0751f |
64 | |
258133d1 |
65 | #if PERL_REVISION == 5 && (PERL_VERSION < 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) |
25f0751f |
66 | |
67 | # ifdef SvPVbyte_force |
68 | # undef SvPVbyte_force |
69 | # endif |
70 | |
71 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) |
72 | |
258133d1 |
73 | #endif |
25f0751f |
74 | |
258133d1 |
75 | #ifndef SvPVbyte_nolen |
25f0751f |
76 | # define SvPVbyte_nolen SvPV_nolen |
258133d1 |
77 | #endif |
25f0751f |
78 | |
79 | |
25f0751f |
80 | |
258133d1 |
81 | #if 0 |
25f0751f |
82 | # ifndef SvPVbyte_nolen |
83 | # define SvPVbyte_nolen SvPV_nolen |
84 | # endif |
85 | |
86 | # ifndef SvPVbyte_force |
87 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) |
88 | # endif |
258133d1 |
89 | #endif |
25f0751f |
90 | |
91 | #if PERL_REVISION == 5 && (PERL_VERSION >= 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) |
92 | # define UTF8_AVAILABLE |
93 | #endif |
94 | |
95 | typedef int DualType ; |
96 | typedef int int_undef ; |
97 | |
98 | typedef struct di_stream { |
99 | int flags ; |
100 | #define FLAG_APPEND 1 |
101 | #define FLAG_CRC32 2 |
102 | #define FLAG_ADLER32 4 |
103 | #define FLAG_CONSUME_INPUT 8 |
104 | uLong crc32 ; |
105 | uLong adler32 ; |
106 | z_stream stream; |
107 | uLong bufsize; |
25f0751f |
108 | SV * dictionary ; |
109 | uLong dict_adler ; |
110 | int last_error ; |
111 | bool zip_mode ; |
112 | #define SETP_BYTE |
113 | #ifdef SETP_BYTE |
114 | bool deflateParams_out_valid ; |
115 | Bytef deflateParams_out_byte; |
116 | #else |
117 | #define deflateParams_BUFFER_SIZE 0x4000 |
118 | uLong deflateParams_out_length; |
119 | Bytef* deflateParams_out_buffer; |
120 | #endif |
121 | int Level; |
122 | int Method; |
123 | int WindowBits; |
124 | int MemLevel; |
125 | int Strategy; |
126 | uLong bytesInflated ; |
127 | uLong compressedBytes ; |
128 | uLong uncompressedBytes ; |
129 | #ifdef MAGIC_APPEND |
130 | |
131 | #define WINDOW_SIZE 32768U |
132 | |
133 | bool matchedEndBlock; |
134 | Bytef* window ; |
135 | int window_lastbit, window_left, window_full; |
136 | unsigned window_have; |
137 | off_t window_lastoff, window_end; |
138 | off_t window_endOffset; |
139 | |
140 | uLong lastBlockOffset ; |
141 | unsigned char window_lastByte ; |
142 | |
143 | |
144 | #endif |
145 | } di_stream; |
146 | |
147 | typedef di_stream * deflateStream ; |
148 | typedef di_stream * Compress__Raw__Zlib__deflateStream ; |
149 | typedef di_stream * inflateStream ; |
150 | typedef di_stream * Compress__Raw__Zlib__inflateStream ; |
151 | typedef di_stream * Compress__Raw__Zlib__inflateScanStream ; |
152 | |
153 | #define GZERRNO "Compress::Zlib::gzerrno" |
154 | |
155 | #define ZMALLOC(to, typ) ((to = (typ *)safemalloc(sizeof(typ))), \ |
156 | Zero(to,1,typ)) |
157 | |
158 | /* Figure out the Operating System */ |
159 | #ifdef MSDOS |
160 | # define OS_CODE 0x00 |
161 | #endif |
162 | |
163 | #if defined(AMIGA) || defined(AMIGAOS) |
164 | # define OS_CODE 0x01 |
165 | #endif |
166 | |
167 | #if defined(VAXC) || defined(VMS) |
168 | # define OS_CODE 0x02 |
169 | #endif |
170 | |
171 | #if 0 /* VM/CMS */ |
172 | # define OS_CODE 0x04 |
173 | #endif |
174 | |
175 | #if defined(ATARI) || defined(atarist) |
176 | # define OS_CODE 0x05 |
177 | #endif |
178 | |
179 | #ifdef OS2 |
180 | # define OS_CODE 0x06 |
181 | #endif |
182 | |
183 | #if defined(MACOS) || defined(TARGET_OS_MAC) |
184 | # define OS_CODE 0x07 |
185 | #endif |
186 | |
187 | #if 0 /* Z-System */ |
188 | # define OS_CODE 0x08 |
189 | #endif |
190 | |
191 | #if 0 /* CP/M */ |
192 | # define OS_CODE 0x09 |
193 | #endif |
194 | |
195 | #ifdef TOPS20 |
196 | # define OS_CODE 0x0a |
197 | #endif |
198 | |
199 | #ifdef WIN32 /* Window 95 & Windows NT */ |
200 | # define OS_CODE 0x0b |
201 | #endif |
202 | |
203 | #if 0 /* QDOS */ |
204 | # define OS_CODE 0x0c |
205 | #endif |
206 | |
207 | #if 0 /* Acorn RISCOS */ |
208 | # define OS_CODE 0x0d |
209 | #endif |
210 | |
211 | #if 0 /* ??? */ |
212 | # define OS_CODE 0x0e |
213 | #endif |
214 | |
215 | #ifdef __50SERIES /* Prime/PRIMOS */ |
216 | # define OS_CODE 0x0F |
217 | #endif |
218 | |
219 | /* Default to UNIX */ |
220 | #ifndef OS_CODE |
221 | # define OS_CODE 0x03 /* assume Unix */ |
222 | #endif |
223 | |
224 | #ifndef GZIP_OS_CODE |
225 | # define GZIP_OS_CODE OS_CODE |
226 | #endif |
227 | |
228 | #define adlerInitial adler32(0L, Z_NULL, 0) |
229 | #define crcInitial crc32(0L, Z_NULL, 0) |
230 | |
231 | |
232 | static const char * const my_z_errmsg[] = { |
233 | "need dictionary", /* Z_NEED_DICT 2 */ |
234 | "stream end", /* Z_STREAM_END 1 */ |
235 | "", /* Z_OK 0 */ |
236 | "file error", /* Z_ERRNO (-1) */ |
237 | "stream error", /* Z_STREAM_ERROR (-2) */ |
238 | "data error", /* Z_DATA_ERROR (-3) */ |
239 | "insufficient memory", /* Z_MEM_ERROR (-4) */ |
240 | "buffer error", /* Z_BUF_ERROR (-5) */ |
241 | "incompatible version",/* Z_VERSION_ERROR(-6) */ |
242 | ""}; |
243 | |
244 | #define setDUALstatus(var, err) \ |
245 | sv_setnv(var, (double)err) ; \ |
246 | sv_setpv(var, ((err) ? GetErrorString(err) : "")) ; \ |
247 | SvNOK_on(var); |
248 | |
249 | |
250 | #if defined(__SYMBIAN32__) |
251 | # define NO_WRITEABLE_DATA |
252 | #endif |
253 | |
254 | #define TRACE_DEFAULT 0 |
255 | |
256 | #ifdef NO_WRITEABLE_DATA |
257 | # define trace TRACE_DEFAULT |
258 | #else |
259 | static int trace = TRACE_DEFAULT ; |
260 | #endif |
261 | |
262 | /* Dodge PerlIO hiding of these functions. */ |
263 | #undef printf |
264 | |
265 | static char * |
266 | #ifdef CAN_PROTOTYPE |
267 | GetErrorString(int error_no) |
268 | #else |
269 | GetErrorString(error_no) |
270 | int error_no ; |
271 | #endif |
272 | { |
273 | dTHX; |
274 | char * errstr ; |
275 | |
276 | if (error_no == Z_ERRNO) { |
277 | errstr = Strerror(errno) ; |
278 | } |
279 | else |
280 | /* errstr = gzerror(fil, &error_no) ; */ |
281 | errstr = (char*) my_z_errmsg[2 - error_no]; |
282 | |
283 | return errstr ; |
284 | } |
285 | |
286 | #if 0 |
287 | static void |
288 | #ifdef CAN_PROTOTYPE |
289 | SetGzErrorNo(int error_no) |
290 | #else |
291 | SetGzErrorNo(error_no) |
292 | int error_no ; |
293 | #endif |
294 | { |
295 | dTHX; |
296 | char * errstr ; |
297 | SV * gzerror_sv = perl_get_sv(GZERRNO, FALSE) ; |
298 | |
299 | if (error_no == Z_ERRNO) { |
300 | error_no = errno ; |
301 | errstr = Strerror(errno) ; |
302 | } |
303 | else |
304 | /* errstr = gzerror(fil, &error_no) ; */ |
305 | errstr = (char*) my_z_errmsg[2 - error_no]; |
306 | |
307 | if (SvIV(gzerror_sv) != error_no) { |
308 | sv_setiv(gzerror_sv, error_no) ; |
309 | sv_setpv(gzerror_sv, errstr) ; |
310 | SvIOK_on(gzerror_sv) ; |
311 | } |
312 | |
313 | } |
314 | |
315 | |
316 | static void |
317 | #ifdef CAN_PROTOTYPE |
318 | SetGzError(gzFile file) |
319 | #else |
320 | SetGzError(file) |
321 | gzFile file ; |
322 | #endif |
323 | { |
324 | int error_no ; |
325 | |
326 | (void)gzerror(file, &error_no) ; |
327 | SetGzErrorNo(error_no) ; |
328 | } |
329 | |
330 | #endif |
331 | |
332 | #ifdef MAGIC_APPEND |
333 | |
334 | /* |
335 | The following two functions are taken almost directly from |
336 | examples/gzappend.c. Only cosmetic changes have been made to conform to |
337 | the coding style of the rest of the code in this file. |
338 | */ |
339 | |
340 | |
341 | /* return the greatest common divisor of a and b using Euclid's algorithm, |
342 | modified to be fast when one argument much greater than the other, and |
343 | coded to avoid unnecessary swapping */ |
344 | static unsigned |
345 | #ifdef CAN_PROTOTYPE |
346 | gcd(unsigned a, unsigned b) |
347 | #else |
348 | gcd(a, b) |
349 | unsigned a; |
350 | unsigned b; |
351 | #endif |
352 | { |
353 | unsigned c; |
354 | |
355 | while (a && b) |
356 | if (a > b) { |
357 | c = b; |
358 | while (a - c >= c) |
359 | c <<= 1; |
360 | a -= c; |
361 | } |
362 | else { |
363 | c = a; |
364 | while (b - c >= c) |
365 | c <<= 1; |
366 | b -= c; |
367 | } |
368 | return a + b; |
369 | } |
370 | |
371 | /* rotate list[0..len-1] left by rot positions, in place */ |
372 | static void |
373 | #ifdef CAN_PROTOTYPE |
374 | rotate(unsigned char *list, unsigned len, unsigned rot) |
375 | #else |
376 | rotate(list, len, rot) |
377 | unsigned char *list; |
378 | unsigned len ; |
379 | unsigned rot; |
380 | #endif |
381 | { |
382 | unsigned char tmp; |
383 | unsigned cycles; |
384 | unsigned char *start, *last, *to, *from; |
385 | |
386 | /* normalize rot and handle degenerate cases */ |
387 | if (len < 2) return; |
388 | if (rot >= len) rot %= len; |
389 | if (rot == 0) return; |
390 | |
391 | /* pointer to last entry in list */ |
392 | last = list + (len - 1); |
393 | |
394 | /* do simple left shift by one */ |
395 | if (rot == 1) { |
396 | tmp = *list; |
397 | memcpy(list, list + 1, len - 1); |
398 | *last = tmp; |
399 | return; |
400 | } |
401 | |
402 | /* do simple right shift by one */ |
403 | if (rot == len - 1) { |
404 | tmp = *last; |
405 | memmove(list + 1, list, len - 1); |
406 | *list = tmp; |
407 | return; |
408 | } |
409 | |
410 | /* otherwise do rotate as a set of cycles in place */ |
411 | cycles = gcd(len, rot); /* number of cycles */ |
412 | do { |
413 | start = from = list + cycles; /* start index is arbitrary */ |
414 | tmp = *from; /* save entry to be overwritten */ |
415 | for (;;) { |
416 | to = from; /* next step in cycle */ |
417 | from += rot; /* go right rot positions */ |
418 | if (from > last) from -= len; /* (pointer better not wrap) */ |
419 | if (from == start) break; /* all but one shifted */ |
420 | *to = *from; /* shift left */ |
421 | } |
422 | *to = tmp; /* complete the circle */ |
423 | } while (--cycles); |
424 | } |
425 | |
426 | #endif /* MAGIC_APPEND */ |
427 | |
428 | static void |
429 | #ifdef CAN_PROTOTYPE |
430 | DispHex(void * ptr, int length) |
431 | #else |
432 | DispHex(ptr, length) |
433 | void * ptr; |
434 | int length; |
435 | #endif |
436 | { |
437 | char * p = (char*)ptr; |
438 | int i; |
439 | for (i = 0; i < length; ++i) { |
440 | printf(" %02x", 0xFF & *(p+i)); |
441 | } |
442 | } |
443 | |
444 | |
445 | static void |
446 | #ifdef CAN_PROTOTYPE |
447 | DispStream(di_stream * s, char * message) |
448 | #else |
449 | DispStream(s, message) |
450 | di_stream * s; |
451 | char * message; |
452 | #endif |
453 | { |
454 | |
455 | #if 0 |
456 | if (! trace) |
457 | return ; |
458 | #endif |
459 | |
460 | #define EnDis(f) (s->flags & f ? "Enabled" : "Disabled") |
461 | |
462 | printf("DispStream 0x%p", s) ; |
463 | if (message) |
464 | printf("- %s \n", message) ; |
465 | printf("\n") ; |
466 | |
467 | if (!s) { |
468 | printf(" stream pointer is NULL\n"); |
469 | } |
470 | else { |
471 | printf(" stream 0x%p\n", &(s->stream)); |
472 | printf(" zalloc 0x%p\n", s->stream.zalloc); |
473 | printf(" zfree 0x%p\n", s->stream.zfree); |
474 | printf(" opaque 0x%p\n", s->stream.opaque); |
475 | if (s->stream.msg) |
476 | printf(" msg %s\n", s->stream.msg); |
477 | else |
478 | printf(" msg \n"); |
479 | printf(" next_in 0x%p", s->stream.next_in); |
480 | if (s->stream.next_in){ |
481 | printf(" =>"); |
482 | DispHex(s->stream.next_in, 4); |
483 | } |
484 | printf("\n"); |
485 | |
486 | printf(" next_out 0x%p", s->stream.next_out); |
487 | if (s->stream.next_out){ |
488 | printf(" =>"); |
489 | DispHex(s->stream.next_out, 4); |
490 | } |
491 | printf("\n"); |
492 | |
493 | printf(" avail_in %lu\n", (unsigned long)s->stream.avail_in); |
494 | printf(" avail_out %lu\n", (unsigned long)s->stream.avail_out); |
495 | printf(" total_in %ld\n", s->stream.total_in); |
496 | printf(" total_out %ld\n", s->stream.total_out); |
497 | printf(" adler %ld\n", s->stream.adler ); |
498 | printf(" bufsize %ld\n", s->bufsize); |
499 | printf(" dictionary 0x%p\n", s->dictionary); |
500 | printf(" dict_adler 0x%ld\n",s->dict_adler); |
501 | printf(" zip_mode %d\n", s->zip_mode); |
502 | printf(" crc32 0x%x\n", (unsigned)s->crc32); |
503 | printf(" adler32 0x%x\n", (unsigned)s->adler32); |
504 | printf(" flags 0x%x\n", s->flags); |
505 | printf(" APPEND %s\n", EnDis(FLAG_APPEND)); |
506 | printf(" CRC32 %s\n", EnDis(FLAG_CRC32)); |
507 | printf(" ADLER32 %s\n", EnDis(FLAG_ADLER32)); |
508 | printf(" CONSUME %s\n", EnDis(FLAG_CONSUME_INPUT)); |
509 | |
510 | #ifdef MAGIC_APPEND |
511 | printf(" window 0x%p\n", s->window); |
512 | #endif |
513 | printf("\n"); |
514 | |
515 | } |
516 | } |
517 | |
518 | static di_stream * |
519 | #ifdef CAN_PROTOTYPE |
520 | InitStream(void) |
521 | #else |
522 | InitStream() |
523 | #endif |
524 | { |
525 | di_stream *s ; |
526 | |
527 | ZMALLOC(s, di_stream) ; |
528 | |
529 | return s ; |
530 | |
531 | } |
532 | |
533 | static void |
534 | #ifdef CAN_PROTOTYPE |
535 | PostInitStream(di_stream * s, int flags, int bufsize, int windowBits) |
536 | #else |
537 | PostInitStream(s, flags, bufsize, windowBits) |
538 | di_stream *s ; |
539 | int flags ; |
540 | int bufsize ; |
541 | int windowBits ; |
542 | #endif |
543 | { |
544 | s->bufsize = bufsize ; |
25f0751f |
545 | s->compressedBytes = |
546 | s->uncompressedBytes = |
547 | s->last_error = 0 ; |
548 | s->flags = flags ; |
549 | s->zip_mode = (windowBits < 0) ; |
550 | if (flags & FLAG_CRC32) |
551 | s->crc32 = crcInitial ; |
552 | if (flags & FLAG_ADLER32) |
553 | s->adler32 = adlerInitial ; |
554 | } |
555 | |
556 | |
557 | static SV* |
558 | #ifdef CAN_PROTOTYPE |
559 | deRef(SV * sv, char * string) |
560 | #else |
561 | deRef(sv, string) |
562 | SV * sv ; |
563 | char * string; |
564 | #endif |
565 | { |
566 | dTHX; |
567 | SvGETMAGIC(sv); |
568 | |
569 | if (SvROK(sv)) { |
570 | sv = SvRV(sv) ; |
571 | SvGETMAGIC(sv); |
572 | switch(SvTYPE(sv)) { |
573 | case SVt_PVAV: |
574 | case SVt_PVHV: |
575 | case SVt_PVCV: |
576 | croak("%s: buffer parameter is not a SCALAR reference", string); |
577 | } |
578 | if (SvROK(sv)) |
579 | croak("%s: buffer parameter is a reference to a reference", string) ; |
580 | } |
581 | |
582 | if (!SvOK(sv)) { |
583 | sv = newSVpv("", 0); |
584 | } |
585 | |
586 | return sv ; |
587 | } |
588 | |
589 | static SV* |
590 | #ifdef CAN_PROTOTYPE |
591 | deRef_l(SV * sv, char * string) |
592 | #else |
593 | deRef_l(sv, string) |
594 | SV * sv ; |
595 | char * string ; |
596 | #endif |
597 | { |
598 | dTHX; |
599 | bool wipe = 0 ; |
600 | |
601 | SvGETMAGIC(sv); |
602 | wipe = ! SvOK(sv) ; |
603 | |
604 | if (SvROK(sv)) { |
605 | sv = SvRV(sv) ; |
606 | SvGETMAGIC(sv); |
607 | wipe = ! SvOK(sv) ; |
608 | |
609 | switch(SvTYPE(sv)) { |
610 | case SVt_PVAV: |
611 | case SVt_PVHV: |
612 | case SVt_PVCV: |
613 | croak("%s: buffer parameter is not a SCALAR reference", string); |
614 | } |
615 | if (SvROK(sv)) |
616 | croak("%s: buffer parameter is a reference to a reference", string) ; |
617 | } |
618 | |
619 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) |
620 | croak("%s: buffer parameter is read-only", string); |
621 | |
622 | SvUPGRADE(sv, SVt_PV); |
623 | |
624 | if (wipe) |
625 | SvCUR_set(sv, 0); |
626 | |
627 | SvOOK_off(sv); |
628 | SvPOK_only(sv); |
629 | |
630 | return sv ; |
631 | } |
632 | |
633 | |
634 | #include "constants.h" |
635 | |
636 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib PREFIX = Zip_ |
637 | |
638 | REQUIRE: 1.924 |
639 | PROTOTYPES: DISABLE |
640 | |
641 | INCLUDE: constants.xs |
642 | |
643 | BOOT: |
644 | /* Check this version of zlib is == 1 */ |
645 | if (zlibVersion()[0] != '1') |
646 | croak("Compress::Raw::Zlib needs zlib version 1.x\n") ; |
647 | |
648 | { |
649 | /* Create the $os_code scalar */ |
650 | SV * os_code_sv = perl_get_sv("Compress::Raw::Zlib::gzip_os_code", GV_ADDMULTI) ; |
651 | sv_setiv(os_code_sv, GZIP_OS_CODE) ; |
652 | } |
653 | |
654 | |
655 | #define Zip_zlib_version() (char*)zlib_version |
656 | char* |
657 | Zip_zlib_version() |
658 | |
659 | unsigned |
660 | ZLIB_VERNUM() |
661 | CODE: |
662 | #ifdef ZLIB_VERNUM |
663 | RETVAL = ZLIB_VERNUM ; |
664 | #else |
665 | /* 1.1.4 => 0x1140 */ |
666 | RETVAL = (ZLIB_VERSION[0] - '0') << 12 ; |
667 | RETVAL += (ZLIB_VERSION[2] - '0') << 8 ; |
668 | RETVAL += (ZLIB_VERSION[4] - '0') << 4 ; |
669 | #endif |
670 | OUTPUT: |
671 | RETVAL |
672 | |
673 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib PREFIX = Zip_ |
674 | |
675 | #define Zip_adler32(buf, adler) adler32(adler, buf, (uInt)len) |
676 | |
677 | uLong |
678 | Zip_adler32(buf, adler=adlerInitial) |
679 | uLong adler = NO_INIT |
680 | STRLEN len = NO_INIT |
681 | Bytef * buf = NO_INIT |
682 | SV * sv = ST(0) ; |
683 | INIT: |
684 | /* If the buffer is a reference, dereference it */ |
685 | sv = deRef(sv, "adler32") ; |
686 | #ifdef UTF8_AVAILABLE |
687 | if (DO_UTF8(sv) && !sv_utf8_downgrade(sv, 1)) |
688 | croak("Wide character in Compress::Raw::Zlib::adler32"); |
689 | #endif |
690 | buf = (Byte*)SvPVbyte(sv, len) ; |
691 | |
692 | if (items < 2) |
693 | adler = adlerInitial; |
694 | else if (SvOK(ST(1))) |
695 | adler = SvUV(ST(1)) ; |
696 | else |
697 | adler = adlerInitial; |
698 | |
699 | #define Zip_crc32(buf, crc) crc32(crc, buf, (uInt)len) |
700 | |
701 | uLong |
702 | Zip_crc32(buf, crc=crcInitial) |
703 | uLong crc = NO_INIT |
704 | STRLEN len = NO_INIT |
705 | Bytef * buf = NO_INIT |
706 | SV * sv = ST(0) ; |
707 | INIT: |
708 | /* If the buffer is a reference, dereference it */ |
709 | sv = deRef(sv, "crc32") ; |
710 | #ifdef UTF8_AVAILABLE |
711 | if (DO_UTF8(sv) && !sv_utf8_downgrade(sv, 1)) |
712 | croak("Wide character in Compress::Raw::Zlib::crc32"); |
713 | #endif |
714 | buf = (Byte*)SvPVbyte(sv, len) ; |
715 | |
716 | if (items < 2) |
717 | crc = crcInitial; |
718 | else if (SvOK(ST(1))) |
719 | crc = SvUV(ST(1)) ; |
720 | else |
721 | crc = crcInitial; |
722 | |
723 | |
724 | uLong |
725 | crc32_combine(crc1, crc2, len2) |
726 | uLong crc1 |
727 | uLong crc2 |
728 | z_off_t len2 |
729 | CODE: |
730 | #ifndef AT_LEAST_ZLIB_1_2_2_1 |
731 | crc1 = crc1; crc2 = crc2 ; len2 = len2; /* Silence -Wall */ |
732 | croak("crc32_combine needs zlib 1.2.3 or better"); |
733 | #else |
734 | RETVAL = crc32_combine(crc1, crc2, len2); |
735 | #endif |
736 | OUTPUT: |
737 | RETVAL |
738 | |
739 | |
740 | uLong |
741 | adler32_combine(adler1, adler2, len2) |
742 | uLong adler1 |
743 | uLong adler2 |
744 | z_off_t len2 |
745 | CODE: |
746 | #ifndef AT_LEAST_ZLIB_1_2_2_1 |
747 | adler1 = adler1; adler2 = adler2 ; len2 = len2; /* Silence -Wall */ |
748 | croak("adler32_combine needs zlib 1.2.3 or better"); |
749 | #else |
750 | RETVAL = adler32_combine(adler1, adler2, len2); |
751 | #endif |
752 | OUTPUT: |
753 | RETVAL |
754 | |
755 | |
756 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib |
757 | |
758 | void |
759 | _deflateInit(flags,level, method, windowBits, memLevel, strategy, bufsize, dictionary) |
760 | int flags |
761 | int level |
762 | int method |
763 | int windowBits |
764 | int memLevel |
765 | int strategy |
766 | uLong bufsize |
767 | SV* dictionary |
768 | PPCODE: |
769 | int err ; |
770 | deflateStream s ; |
771 | |
772 | if (trace) |
773 | warn("in _deflateInit(level=%d, method=%d, windowBits=%d, memLevel=%d, strategy=%d, bufsize=%ld\n", |
774 | level, method, windowBits, memLevel, strategy, bufsize) ; |
775 | if ((s = InitStream() )) { |
776 | |
777 | s->Level = level; |
778 | s->Method = method; |
779 | s->WindowBits = windowBits; |
780 | s->MemLevel = memLevel; |
781 | s->Strategy = strategy; |
782 | |
783 | err = deflateInit2(&(s->stream), level, |
784 | method, windowBits, memLevel, strategy); |
785 | |
786 | /* Check if a dictionary has been specified */ |
787 | |
788 | if (err == Z_OK && SvCUR(dictionary)) { |
789 | #ifdef UTF8_AVAILABLE |
790 | if (DO_UTF8(dictionary) && !sv_utf8_downgrade(dictionary, 1)) |
791 | croak("Wide character in Compress::Raw::Zlib::Deflate::new dicrionary parameter"); |
792 | #endif |
793 | err = deflateSetDictionary(&(s->stream), (const Bytef*) SvPVbyte_nolen(dictionary), |
794 | SvCUR(dictionary)) ; |
795 | s->dict_adler = s->stream.adler ; |
796 | } |
797 | |
798 | if (err != Z_OK) { |
799 | Safefree(s) ; |
800 | s = NULL ; |
801 | } |
802 | else |
803 | PostInitStream(s, flags, bufsize, windowBits) ; |
804 | |
805 | } |
806 | else |
807 | err = Z_MEM_ERROR ; |
808 | |
809 | XPUSHs(sv_setref_pv(sv_newmortal(), |
810 | "Compress::Raw::Zlib::deflateStream", (void*)s)); |
811 | if (GIMME == G_ARRAY) { |
812 | SV * sv = sv_2mortal(newSViv(err)) ; |
813 | setDUALstatus(sv, err); |
814 | XPUSHs(sv) ; |
815 | } |
816 | |
817 | void |
818 | _inflateInit(flags, windowBits, bufsize, dictionary) |
819 | int flags |
820 | int windowBits |
821 | uLong bufsize |
822 | SV * dictionary |
823 | ALIAS: |
824 | _inflateScanInit = 1 |
825 | PPCODE: |
826 | |
827 | int err = Z_OK ; |
828 | inflateStream s ; |
829 | #ifndef MAGIC_APPEND |
830 | if (ix == 1) |
831 | croak("inflateScanInit needs zlib 1.2.1 or better"); |
832 | #endif |
833 | if (trace) |
834 | warn("in _inflateInit(windowBits=%d, bufsize=%lu, dictionary=%lu\n", |
835 | windowBits, bufsize, (unsigned long)SvCUR(dictionary)) ; |
836 | if ((s = InitStream() )) { |
837 | |
838 | s->WindowBits = windowBits; |
839 | |
840 | err = inflateInit2(&(s->stream), windowBits); |
841 | if (err != Z_OK) { |
842 | Safefree(s) ; |
843 | s = NULL ; |
844 | } |
845 | else if (SvCUR(dictionary)) { |
846 | /* Dictionary specified - take a copy for use in inflate */ |
847 | s->dictionary = newSVsv(dictionary) ; |
848 | } |
849 | if (s) { |
850 | PostInitStream(s, flags, bufsize, windowBits) ; |
851 | #ifdef MAGIC_APPEND |
852 | if (ix == 1) |
853 | { |
854 | s->window = (unsigned char *)safemalloc(WINDOW_SIZE); |
855 | } |
856 | #endif |
857 | } |
858 | } |
859 | else |
860 | err = Z_MEM_ERROR ; |
861 | |
862 | XPUSHs(sv_setref_pv(sv_newmortal(), |
863 | ix == 1 |
864 | ? "Compress::Raw::Zlib::inflateScanStream" |
865 | : "Compress::Raw::Zlib::inflateStream", |
866 | (void*)s)); |
867 | if (GIMME == G_ARRAY) { |
868 | SV * sv = sv_2mortal(newSViv(err)) ; |
869 | setDUALstatus(sv, err); |
870 | XPUSHs(sv) ; |
871 | } |
872 | |
873 | |
874 | |
875 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::deflateStream |
876 | |
877 | void |
878 | DispStream(s, message=NULL) |
879 | Compress::Raw::Zlib::deflateStream s |
880 | char * message |
881 | |
882 | DualType |
883 | deflateReset(s) |
884 | Compress::Raw::Zlib::deflateStream s |
885 | CODE: |
886 | RETVAL = deflateReset(&(s->stream)) ; |
887 | if (RETVAL == Z_OK) { |
888 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; |
889 | } |
890 | OUTPUT: |
891 | RETVAL |
892 | |
893 | DualType |
894 | deflate (s, buf, output) |
895 | Compress::Raw::Zlib::deflateStream s |
896 | SV * buf |
897 | SV * output |
898 | uInt cur_length = NO_INIT |
899 | uInt increment = NO_INIT |
900 | uInt prefix = NO_INIT |
901 | int RETVAL = 0; |
258133d1 |
902 | uLong bufinc = NO_INIT |
25f0751f |
903 | CODE: |
258133d1 |
904 | bufinc = s->bufsize; |
25f0751f |
905 | |
906 | /* If the input buffer is a reference, dereference it */ |
907 | buf = deRef(buf, "deflate") ; |
908 | |
909 | /* initialise the input buffer */ |
910 | #ifdef UTF8_AVAILABLE |
911 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
912 | croak("Wide character in Compress::Raw::Zlib::Deflate::deflate input parameter"); |
913 | #endif |
914 | s->stream.next_in = (Bytef*)SvPVbyte_nolen(buf) ; |
915 | s->stream.avail_in = SvCUR(buf) ; |
916 | |
917 | if (s->flags & FLAG_CRC32) |
918 | s->crc32 = crc32(s->crc32, s->stream.next_in, s->stream.avail_in) ; |
919 | |
920 | if (s->flags & FLAG_ADLER32) |
921 | s->adler32 = adler32(s->adler32, s->stream.next_in, s->stream.avail_in) ; |
922 | |
923 | /* and retrieve the output buffer */ |
924 | output = deRef_l(output, "deflate") ; |
925 | #ifdef UTF8_AVAILABLE |
926 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
927 | croak("Wide character in Compress::Raw::Zlib::Deflate::deflate output parameter"); |
928 | #endif |
929 | |
930 | if((s->flags & FLAG_APPEND) != FLAG_APPEND) { |
931 | SvCUR_set(output, 0); |
932 | /* sv_setpvn(output, "", 0); */ |
933 | } |
934 | prefix = cur_length = SvCUR(output) ; |
935 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
936 | increment = SvLEN(output) - cur_length; |
937 | s->stream.avail_out = increment; |
938 | #ifdef SETP_BYTE |
939 | /* Check for saved output from deflateParams */ |
940 | if (s->deflateParams_out_valid) { |
941 | *(s->stream.next_out) = s->deflateParams_out_byte; |
942 | ++ s->stream.next_out; |
943 | -- s->stream.avail_out ; |
944 | s->deflateParams_out_valid = FALSE; |
945 | } |
946 | #else |
947 | /* Check for saved output from deflateParams */ |
948 | if (s->deflateParams_out_length) { |
949 | uLong plen = s->deflateParams_out_length ; |
950 | /* printf("Copy %d bytes saved data\n", plen);*/ |
951 | if (s->stream.avail_out < plen) { |
952 | /*printf("GROW from %d to %d\n", s->stream.avail_out, |
953 | SvLEN(output) + plen - s->stream.avail_out); */ |
954 | Sv_Grow(output, SvLEN(output) + plen - s->stream.avail_out) ; |
955 | } |
956 | |
957 | Copy(s->stream.next_out, s->deflateParams_out_buffer, plen, Bytef) ; |
958 | cur_length = cur_length + plen; |
959 | SvCUR_set(output, cur_length); |
960 | s->stream.next_out += plen ; |
961 | s->stream.avail_out = SvLEN(output) - cur_length ; |
962 | increment = s->stream.avail_out; |
963 | s->deflateParams_out_length = 0; |
964 | } |
965 | #endif |
966 | while (s->stream.avail_in != 0) { |
967 | |
968 | if (s->stream.avail_out == 0) { |
969 | /* out of space in the output buffer so make it bigger */ |
258133d1 |
970 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f |
971 | cur_length += increment ; |
972 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
258133d1 |
973 | increment = bufinc ; |
25f0751f |
974 | s->stream.avail_out = increment; |
258133d1 |
975 | bufinc *= 2 ; |
25f0751f |
976 | } |
977 | |
978 | RETVAL = deflate(&(s->stream), Z_NO_FLUSH); |
979 | if (RETVAL != Z_OK) |
980 | break; |
981 | } |
982 | |
983 | s->compressedBytes += cur_length + increment - prefix - s->stream.avail_out ; |
984 | s->uncompressedBytes += SvCUR(buf) - s->stream.avail_in ; |
985 | |
986 | s->last_error = RETVAL ; |
987 | if (RETVAL == Z_OK) { |
988 | SvPOK_only(output); |
989 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; |
990 | } |
991 | OUTPUT: |
992 | RETVAL |
993 | output |
994 | |
995 | |
996 | void |
997 | DESTROY(s) |
998 | Compress::Raw::Zlib::deflateStream s |
999 | CODE: |
1000 | deflateEnd(&s->stream) ; |
1001 | if (s->dictionary) |
1002 | SvREFCNT_dec(s->dictionary) ; |
1003 | #ifndef SETP_BYTE |
1004 | if (s->deflateParams_out_buffer) |
1005 | Safefree(s->deflateParams_out_buffer); |
1006 | #endif |
1007 | Safefree(s) ; |
1008 | |
1009 | |
1010 | DualType |
1011 | flush(s, output, f=Z_FINISH) |
1012 | Compress::Raw::Zlib::deflateStream s |
1013 | SV * output |
1014 | int f |
1015 | uInt cur_length = NO_INIT |
1016 | uInt increment = NO_INIT |
1017 | uInt prefix = NO_INIT |
258133d1 |
1018 | uLong bufinc = NO_INIT |
25f0751f |
1019 | CODE: |
258133d1 |
1020 | bufinc = s->bufsize; |
25f0751f |
1021 | |
1022 | s->stream.avail_in = 0; /* should be zero already anyway */ |
1023 | |
1024 | /* retrieve the output buffer */ |
1025 | output = deRef_l(output, "flush") ; |
1026 | #ifdef UTF8_AVAILABLE |
1027 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
1028 | croak("Wide character in Compress::Raw::Zlib::Deflate::flush input parameter"); |
1029 | #endif |
1030 | if(! s->flags & FLAG_APPEND) { |
1031 | SvCUR_set(output, 0); |
1032 | /* sv_setpvn(output, "", 0); */ |
1033 | } |
1034 | prefix = cur_length = SvCUR(output) ; |
1035 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
1036 | increment = SvLEN(output) - cur_length; |
1037 | s->stream.avail_out = increment; |
1038 | #ifdef SETP_BYTE |
1039 | /* Check for saved output from deflateParams */ |
1040 | if (s->deflateParams_out_valid) { |
1041 | *(s->stream.next_out) = s->deflateParams_out_byte; |
1042 | ++ s->stream.next_out; |
1043 | -- s->stream.avail_out ; |
1044 | s->deflateParams_out_valid = FALSE; |
1045 | } |
1046 | #else |
1047 | /* Check for saved output from deflateParams */ |
1048 | if (s->deflateParams_out_length) { |
1049 | uLong plen = s->deflateParams_out_length ; |
1050 | /* printf("Copy %d bytes saved data\n", plen); */ |
1051 | if (s->stream.avail_out < plen) { |
1052 | /* printf("GROW from %d to %d\n", s->stream.avail_out, |
1053 | SvLEN(output) + plen - s->stream.avail_out); */ |
1054 | Sv_Grow(output, SvLEN(output) + plen - s->stream.avail_out) ; |
1055 | } |
1056 | |
1057 | Copy(s->stream.next_out, s->deflateParams_out_buffer, plen, Bytef) ; |
1058 | cur_length = cur_length + plen; |
1059 | SvCUR_set(output, cur_length); |
1060 | s->stream.next_out += plen ; |
1061 | s->stream.avail_out = SvLEN(output) - cur_length ; |
1062 | increment = s->stream.avail_out; |
1063 | s->deflateParams_out_length = 0; |
1064 | } |
1065 | #endif |
1066 | |
1067 | for (;;) { |
1068 | if (s->stream.avail_out == 0) { |
1069 | /* consumed all the available output, so extend it */ |
258133d1 |
1070 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f |
1071 | cur_length += increment ; |
1072 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
258133d1 |
1073 | increment = bufinc ; |
25f0751f |
1074 | s->stream.avail_out = increment; |
258133d1 |
1075 | bufinc *= 2 ; |
25f0751f |
1076 | } |
1077 | RETVAL = deflate(&(s->stream), f); |
1078 | |
1079 | /* deflate has finished flushing only when it hasn't used up |
1080 | * all the available space in the output buffer: |
1081 | */ |
1082 | if (s->stream.avail_out != 0 || RETVAL != Z_OK ) |
1083 | break; |
1084 | } |
1085 | |
1086 | RETVAL = (RETVAL == Z_STREAM_END ? Z_OK : RETVAL) ; |
1087 | s->last_error = RETVAL ; |
1088 | |
1089 | s->compressedBytes += cur_length + increment - prefix - s->stream.avail_out ; |
1090 | |
1091 | if (RETVAL == Z_OK) { |
1092 | SvPOK_only(output); |
1093 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; |
1094 | } |
1095 | OUTPUT: |
1096 | RETVAL |
1097 | output |
1098 | |
1099 | |
1100 | DualType |
1101 | _deflateParams(s, flags, level, strategy, bufsize) |
1102 | Compress::Raw::Zlib::deflateStream s |
1103 | int flags |
1104 | int level |
1105 | int strategy |
1106 | uLong bufsize |
1107 | CODE: |
1108 | /* printf("_deflateParams(Flags %d Level %d Strategy %d Bufsize %d)\n", flags, level, strategy, bufsize); |
1109 | printf("Before -- Level %d, Strategy %d, Bufsize %d\n", s->Level, s->Strategy, s->bufsize); */ |
1110 | if (flags & 1) |
1111 | s->Level = level ; |
1112 | if (flags & 2) |
1113 | s->Strategy = strategy ; |
1114 | if (flags & 4) { |
1115 | s->bufsize = bufsize; |
25f0751f |
1116 | } |
1117 | /* printf("After -- Level %d, Strategy %d, Bufsize %d\n", s->Level, s->Strategy, s->bufsize);*/ |
1118 | #ifdef SETP_BYTE |
1119 | s->stream.avail_in = 0; |
1120 | s->stream.next_out = &(s->deflateParams_out_byte) ; |
1121 | s->stream.avail_out = 1; |
1122 | RETVAL = deflateParams(&(s->stream), s->Level, s->Strategy); |
1123 | s->deflateParams_out_valid = |
1124 | (RETVAL == Z_OK && s->stream.avail_out == 0) ; |
1125 | /* printf("RETVAL %d, avail out %d, byte %c\n", RETVAL, s->stream.avail_out, s->deflateParams_out_byte); */ |
1126 | #else |
1127 | /* printf("Level %d Strategy %d, Prev Len %d\n", |
1128 | s->Level, s->Strategy, s->deflateParams_out_length); */ |
1129 | s->stream.avail_in = 0; |
1130 | if (s->deflateParams_out_buffer == NULL) |
1131 | s->deflateParams_out_buffer = safemalloc(deflateParams_BUFFER_SIZE); |
1132 | s->stream.next_out = s->deflateParams_out_buffer ; |
1133 | s->stream.avail_out = deflateParams_BUFFER_SIZE; |
1134 | |
1135 | RETVAL = deflateParams(&(s->stream), s->Level, s->Strategy); |
1136 | s->deflateParams_out_length = deflateParams_BUFFER_SIZE - s->stream.avail_out; |
1137 | /* printf("RETVAL %d, length out %d, avail %d\n", |
1138 | RETVAL, s->deflateParams_out_length, s->stream.avail_out ); */ |
1139 | #endif |
1140 | OUTPUT: |
1141 | RETVAL |
1142 | |
1143 | |
1144 | int |
1145 | get_Level(s) |
1146 | Compress::Raw::Zlib::deflateStream s |
1147 | CODE: |
1148 | RETVAL = s->Level ; |
1149 | OUTPUT: |
1150 | RETVAL |
1151 | |
1152 | int |
1153 | get_Strategy(s) |
1154 | Compress::Raw::Zlib::deflateStream s |
1155 | CODE: |
1156 | RETVAL = s->Strategy ; |
1157 | OUTPUT: |
1158 | RETVAL |
1159 | |
1160 | |
1161 | uLong |
1162 | get_Bufsize(s) |
1163 | Compress::Raw::Zlib::deflateStream s |
1164 | CODE: |
1165 | RETVAL = s->bufsize ; |
1166 | OUTPUT: |
1167 | RETVAL |
1168 | |
1169 | |
1170 | int |
1171 | status(s) |
1172 | Compress::Raw::Zlib::deflateStream s |
1173 | CODE: |
1174 | RETVAL = s->last_error ; |
1175 | OUTPUT: |
1176 | RETVAL |
1177 | |
1178 | uLong |
1179 | crc32(s) |
1180 | Compress::Raw::Zlib::deflateStream s |
1181 | CODE: |
1182 | RETVAL = s->crc32 ; |
1183 | OUTPUT: |
1184 | RETVAL |
1185 | |
1186 | uLong |
1187 | dict_adler(s) |
1188 | Compress::Raw::Zlib::deflateStream s |
1189 | CODE: |
1190 | RETVAL = s->dict_adler ; |
1191 | OUTPUT: |
1192 | RETVAL |
1193 | |
1194 | uLong |
1195 | adler32(s) |
1196 | Compress::Raw::Zlib::deflateStream s |
1197 | CODE: |
1198 | RETVAL = s->adler32 ; |
1199 | OUTPUT: |
1200 | RETVAL |
1201 | |
1202 | uLong |
1203 | compressedBytes(s) |
1204 | Compress::Raw::Zlib::deflateStream s |
1205 | CODE: |
1206 | RETVAL = s->compressedBytes; |
1207 | OUTPUT: |
1208 | RETVAL |
1209 | |
1210 | uLong |
1211 | uncompressedBytes(s) |
1212 | Compress::Raw::Zlib::deflateStream s |
1213 | CODE: |
1214 | RETVAL = s->uncompressedBytes; |
1215 | OUTPUT: |
1216 | RETVAL |
1217 | |
1218 | uLong |
1219 | total_in(s) |
1220 | Compress::Raw::Zlib::deflateStream s |
1221 | CODE: |
1222 | RETVAL = s->stream.total_in ; |
1223 | OUTPUT: |
1224 | RETVAL |
1225 | |
1226 | uLong |
1227 | total_out(s) |
1228 | Compress::Raw::Zlib::deflateStream s |
1229 | CODE: |
1230 | RETVAL = s->stream.total_out ; |
1231 | OUTPUT: |
1232 | RETVAL |
1233 | |
1234 | char* |
1235 | msg(s) |
1236 | Compress::Raw::Zlib::deflateStream s |
1237 | CODE: |
1238 | RETVAL = s->stream.msg; |
1239 | OUTPUT: |
1240 | RETVAL |
1241 | |
1242 | int |
1243 | deflateTune(s, good_length, max_lazy, nice_length, max_chain) |
1244 | Compress::Raw::Zlib::deflateStream s |
1245 | int good_length |
1246 | int max_lazy |
1247 | int nice_length |
1248 | int max_chain |
1249 | CODE: |
1250 | #ifndef AT_LEAST_ZLIB_1_2_2_3 |
1251 | good_length = good_length; max_lazy = max_lazy ; /* Silence -Wall */ |
1252 | nice_length = nice_length; max_chain = max_chain; /* Silence -Wall */ |
1253 | croak("deflateTune needs zlib 1.2.2.3 or better"); |
1254 | #else |
1255 | RETVAL = deflateTune(&(s->stream), good_length, max_lazy, nice_length, max_chain); |
1256 | #endif |
1257 | OUTPUT: |
1258 | RETVAL |
1259 | |
1260 | |
1261 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::inflateStream |
1262 | |
1263 | void |
1264 | DispStream(s, message=NULL) |
1265 | Compress::Raw::Zlib::inflateStream s |
1266 | char * message |
1267 | |
1268 | DualType |
1269 | inflateReset(s) |
1270 | Compress::Raw::Zlib::inflateStream s |
1271 | CODE: |
1272 | RETVAL = inflateReset(&(s->stream)) ; |
1273 | if (RETVAL == Z_OK) { |
1274 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; |
1275 | } |
1276 | OUTPUT: |
1277 | RETVAL |
1278 | |
1279 | DualType |
1280 | inflate (s, buf, output, eof=FALSE) |
1281 | Compress::Raw::Zlib::inflateStream s |
1282 | SV * buf |
1283 | SV * output |
1284 | bool eof |
1285 | uInt cur_length = 0; |
1286 | uInt prefix_length = 0; |
1287 | uInt increment = 0; |
1288 | STRLEN stmp = NO_INIT |
258133d1 |
1289 | uLong bufinc = NO_INIT |
25f0751f |
1290 | PREINIT: |
1291 | #ifdef UTF8_AVAILABLE |
1292 | bool out_utf8 = FALSE; |
1293 | #endif |
1294 | CODE: |
258133d1 |
1295 | bufinc = s->bufsize; |
25f0751f |
1296 | /* If the buffer is a reference, dereference it */ |
1297 | buf = deRef(buf, "inflate") ; |
1298 | |
1299 | if (s->flags & FLAG_CONSUME_INPUT && SvREADONLY(buf)) |
1300 | croak("Compress::Raw::Zlib::Inflate::inflate input parameter cannot be read-only when ConsumeInput is specified"); |
1301 | #ifdef UTF8_AVAILABLE |
1302 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1303 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflate input parameter"); |
1304 | #endif |
1305 | |
1306 | /* initialise the input buffer */ |
1307 | s->stream.next_in = (Bytef*)SvPVbyte_force(buf, stmp) ; |
1308 | s->stream.avail_in = SvCUR(buf) ; |
1309 | |
1310 | /* and retrieve the output buffer */ |
1311 | output = deRef_l(output, "inflate") ; |
1312 | #ifdef UTF8_AVAILABLE |
1313 | if (DO_UTF8(output)) |
1314 | out_utf8 = TRUE ; |
1315 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
1316 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflate output parameter"); |
1317 | #endif |
1318 | if((s->flags & FLAG_APPEND) != FLAG_APPEND) { |
1319 | SvCUR_set(output, 0); |
1320 | } |
1321 | if (SvLEN(output)) { |
1322 | prefix_length = cur_length = SvCUR(output) ; |
1323 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
1324 | increment = SvLEN(output) - cur_length - 1; |
1325 | s->stream.avail_out = increment; |
1326 | } |
1327 | else { |
1328 | s->stream.avail_out = 0; |
1329 | } |
1330 | s->bytesInflated = 0; |
1331 | |
1332 | while (1) { |
1333 | |
258133d1 |
1334 | if (s->stream.avail_out == 0 ) { |
25f0751f |
1335 | /* out of space in the output buffer so make it bigger */ |
258133d1 |
1336 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f |
1337 | cur_length += increment ; |
1338 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
258133d1 |
1339 | increment = bufinc ; |
25f0751f |
1340 | s->stream.avail_out = increment; |
258133d1 |
1341 | bufinc *= 2 ; |
25f0751f |
1342 | } |
1343 | |
1344 | RETVAL = inflate(&(s->stream), Z_SYNC_FLUSH); |
1345 | |
1346 | if (RETVAL == Z_STREAM_ERROR || RETVAL == Z_MEM_ERROR || |
1347 | RETVAL == Z_DATA_ERROR || RETVAL == Z_STREAM_END ) |
1348 | break ; |
1349 | |
1350 | if (RETVAL == Z_BUF_ERROR) { |
1351 | if (s->stream.avail_out == 0) |
1352 | continue ; |
1353 | if (s->stream.avail_in == 0) { |
1354 | RETVAL = Z_OK ; |
1355 | break ; |
1356 | } |
1357 | } |
1358 | |
1359 | if (RETVAL == Z_NEED_DICT && s->dictionary) { |
1360 | s->dict_adler = s->stream.adler ; |
1361 | RETVAL = inflateSetDictionary(&(s->stream), |
1362 | (const Bytef*)SvPVbyte_nolen(s->dictionary), |
1363 | SvCUR(s->dictionary)); |
1364 | } |
1365 | |
1366 | if (RETVAL != Z_OK) |
1367 | break; |
1368 | } |
1369 | #ifdef NEED_DUMMY_BYTE_AT_END |
1370 | if (eof && RETVAL == Z_OK) { |
1371 | Bytef* nextIn = s->stream.next_in; |
1372 | uInt availIn = s->stream.avail_in; |
1373 | s->stream.next_in = (Bytef*) " "; |
1374 | s->stream.avail_in = 1; |
1375 | if (s->stream.avail_out == 0) { |
1376 | /* out of space in the output buffer so make it bigger */ |
258133d1 |
1377 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f |
1378 | cur_length += increment ; |
1379 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
258133d1 |
1380 | increment = bufinc ; |
25f0751f |
1381 | s->stream.avail_out = increment; |
258133d1 |
1382 | bufinc *= 2 ; |
25f0751f |
1383 | } |
1384 | RETVAL = inflate(&(s->stream), Z_SYNC_FLUSH); |
1385 | s->stream.next_in = nextIn ; |
1386 | s->stream.avail_in = availIn ; |
1387 | } |
1388 | #endif |
1389 | |
1390 | s->last_error = RETVAL ; |
1391 | if (RETVAL == Z_OK || RETVAL == Z_STREAM_END || RETVAL == Z_DATA_ERROR) { |
1392 | unsigned in ; |
1393 | |
1394 | s->bytesInflated = cur_length + increment - s->stream.avail_out - prefix_length; |
1395 | s->uncompressedBytes += s->bytesInflated ; |
1396 | s->compressedBytes += SvCUR(buf) - s->stream.avail_in ; |
1397 | |
1398 | SvPOK_only(output); |
1399 | SvCUR_set(output, prefix_length + s->bytesInflated) ; |
1400 | *SvEND(output) = '\0'; |
1401 | #ifdef UTF8_AVAILABLE |
1402 | if (out_utf8) |
1403 | sv_utf8_upgrade(output); |
1404 | #endif |
1405 | |
1406 | if (s->flags & FLAG_CRC32 ) |
1407 | s->crc32 = crc32(s->crc32, |
1408 | (const Bytef*)SvPVbyte_nolen(output)+prefix_length, |
1409 | SvCUR(output)-prefix_length) ; |
1410 | |
1411 | if (s->flags & FLAG_ADLER32) |
1412 | s->adler32 = adler32(s->adler32, |
1413 | (const Bytef*)SvPVbyte_nolen(output)+prefix_length, |
1414 | SvCUR(output)-prefix_length) ; |
1415 | |
1416 | /* fix the input buffer */ |
1417 | if (s->flags & FLAG_CONSUME_INPUT) { |
1418 | in = s->stream.avail_in ; |
1419 | SvCUR_set(buf, in) ; |
1420 | if (in) |
1421 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
1422 | *SvEND(buf) = '\0'; |
1423 | SvSETMAGIC(buf); |
1424 | } |
1425 | } |
1426 | OUTPUT: |
1427 | RETVAL |
1428 | buf |
1429 | output |
1430 | |
1431 | uLong |
1432 | inflateCount(s) |
1433 | Compress::Raw::Zlib::inflateStream s |
1434 | CODE: |
1435 | RETVAL = s->bytesInflated; |
1436 | OUTPUT: |
1437 | RETVAL |
1438 | |
1439 | uLong |
1440 | compressedBytes(s) |
1441 | Compress::Raw::Zlib::inflateStream s |
1442 | CODE: |
1443 | RETVAL = s->compressedBytes; |
1444 | OUTPUT: |
1445 | RETVAL |
1446 | |
1447 | uLong |
1448 | uncompressedBytes(s) |
1449 | Compress::Raw::Zlib::inflateStream s |
1450 | CODE: |
1451 | RETVAL = s->uncompressedBytes; |
1452 | OUTPUT: |
1453 | RETVAL |
1454 | |
1455 | |
1456 | DualType |
1457 | inflateSync (s, buf) |
1458 | Compress::Raw::Zlib::inflateStream s |
1459 | SV * buf |
1460 | CODE: |
1461 | |
1462 | /* If the buffer is a reference, dereference it */ |
1463 | buf = deRef(buf, "inflateSync") ; |
1464 | #ifdef UTF8_AVAILABLE |
1465 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1466 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflateSync"); |
1467 | #endif |
1468 | |
1469 | /* initialise the input buffer */ |
1470 | s->stream.next_in = (Bytef*)SvPVbyte_nolen(buf) ; |
1471 | s->stream.avail_in = SvCUR(buf) ; |
1472 | |
1473 | /* inflateSync doesn't create any output */ |
1474 | s->stream.next_out = (Bytef*) NULL; |
1475 | s->stream.avail_out = 0; |
1476 | |
1477 | RETVAL = inflateSync(&(s->stream)); |
1478 | s->last_error = RETVAL ; |
1479 | |
1480 | /* fix the input buffer */ |
1481 | { |
1482 | unsigned in = s->stream.avail_in ; |
1483 | SvCUR_set(buf, in) ; |
1484 | if (in) |
1485 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
1486 | *SvEND(buf) = '\0'; |
1487 | SvSETMAGIC(buf); |
1488 | } |
1489 | OUTPUT: |
1490 | RETVAL |
1491 | buf |
1492 | |
1493 | void |
1494 | DESTROY(s) |
1495 | Compress::Raw::Zlib::inflateStream s |
1496 | CODE: |
1497 | inflateEnd(&s->stream) ; |
1498 | if (s->dictionary) |
1499 | SvREFCNT_dec(s->dictionary) ; |
1500 | #ifndef SETP_BYTE |
1501 | if (s->deflateParams_out_buffer) |
1502 | Safefree(s->deflateParams_out_buffer); |
1503 | #endif |
1504 | #ifdef MAGIC_APPEND |
1505 | if (s->window) |
1506 | Safefree(s->window); |
1507 | #endif |
1508 | Safefree(s) ; |
1509 | |
1510 | |
1511 | uLong |
1512 | status(s) |
1513 | Compress::Raw::Zlib::inflateStream s |
1514 | CODE: |
1515 | RETVAL = s->last_error ; |
1516 | OUTPUT: |
1517 | RETVAL |
1518 | |
1519 | uLong |
1520 | crc32(s) |
1521 | Compress::Raw::Zlib::inflateStream s |
1522 | CODE: |
1523 | RETVAL = s->crc32 ; |
1524 | OUTPUT: |
1525 | RETVAL |
1526 | |
1527 | uLong |
1528 | dict_adler(s) |
1529 | Compress::Raw::Zlib::inflateStream s |
1530 | CODE: |
1531 | RETVAL = s->dict_adler ; |
1532 | OUTPUT: |
1533 | RETVAL |
1534 | |
1535 | uLong |
1536 | total_in(s) |
1537 | Compress::Raw::Zlib::inflateStream s |
1538 | CODE: |
1539 | RETVAL = s->stream.total_in ; |
1540 | OUTPUT: |
1541 | RETVAL |
1542 | |
1543 | uLong |
1544 | adler32(s) |
1545 | Compress::Raw::Zlib::inflateStream s |
1546 | CODE: |
1547 | RETVAL = s->adler32 ; |
1548 | OUTPUT: |
1549 | RETVAL |
1550 | |
1551 | uLong |
1552 | total_out(s) |
1553 | Compress::Raw::Zlib::inflateStream s |
1554 | CODE: |
1555 | RETVAL = s->stream.total_out ; |
1556 | OUTPUT: |
1557 | RETVAL |
1558 | |
1559 | char* |
1560 | msg(s) |
1561 | Compress::Raw::Zlib::inflateStream s |
1562 | CODE: |
1563 | RETVAL = s->stream.msg; |
1564 | OUTPUT: |
1565 | RETVAL |
1566 | |
1567 | |
1568 | uLong |
1569 | get_Bufsize(s) |
1570 | Compress::Raw::Zlib::inflateStream s |
1571 | CODE: |
1572 | RETVAL = s->bufsize ; |
1573 | OUTPUT: |
1574 | RETVAL |
1575 | |
1576 | bool |
1577 | set_Append(s, mode) |
1578 | Compress::Raw::Zlib::inflateStream s |
1579 | bool mode |
1580 | CODE: |
1581 | RETVAL = ((s->flags & FLAG_APPEND) == FLAG_APPEND); |
1582 | if (mode) |
1583 | s->flags |= FLAG_APPEND ; |
1584 | else |
1585 | s->flags &= ~FLAG_APPEND ; |
1586 | OUTPUT: |
1587 | RETVAL |
1588 | |
1589 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::inflateScanStream |
1590 | |
1591 | void |
1592 | DESTROY(s) |
1593 | Compress::Raw::Zlib::inflateScanStream s |
1594 | CODE: |
1595 | inflateEnd(&s->stream) ; |
1596 | if (s->dictionary) |
1597 | SvREFCNT_dec(s->dictionary) ; |
1598 | #ifndef SETP_BYTE |
1599 | if (s->deflateParams_out_buffer) |
1600 | Safefree(s->deflateParams_out_buffer); |
1601 | #endif |
1602 | #ifdef MAGIC_APPEND |
1603 | if (s->window) |
1604 | Safefree(s->window); |
1605 | #endif |
1606 | Safefree(s) ; |
1607 | |
1608 | void |
1609 | DispStream(s, message=NULL) |
1610 | Compress::Raw::Zlib::inflateScanStream s |
1611 | char * message |
1612 | |
1613 | DualType |
1614 | inflateReset(s) |
1615 | Compress::Raw::Zlib::inflateScanStream s |
1616 | CODE: |
1617 | RETVAL = inflateReset(&(s->stream)) ; |
1618 | if (RETVAL == Z_OK) { |
1619 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; |
1620 | } |
1621 | OUTPUT: |
1622 | RETVAL |
1623 | |
1624 | DualType |
1625 | scan(s, buf, out=NULL, eof=FALSE) |
1626 | Compress::Raw::Zlib::inflateScanStream s |
1627 | SV * buf |
1628 | SV * out |
1629 | bool eof |
1630 | bool eof_mode = FALSE; |
1631 | int start_len = NO_INIT |
1632 | STRLEN stmp = NO_INIT |
1633 | CODE: |
1634 | /* If the input buffer is a reference, dereference it */ |
1635 | #ifndef MAGIC_APPEND |
1636 | buf = buf; |
1637 | croak("scan needs zlib 1.2.1 or better"); |
1638 | #else |
1639 | buf = deRef(buf, "inflateScan") ; |
1640 | #ifdef UTF8_AVAILABLE |
1641 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1642 | croak("Wide character in Compress::Raw::Zlib::InflateScan::scan input parameter"); |
1643 | #endif |
1644 | /* initialise the input buffer */ |
1645 | s->stream.next_in = (Bytef*)SvPVbyte_force(buf, stmp) ; |
1646 | s->stream.avail_in = SvCUR(buf) ; |
1647 | start_len = s->stream.avail_in ; |
1648 | s->bytesInflated = 0 ; |
1649 | do |
1650 | { |
1651 | if (s->stream.avail_in == 0) { |
1652 | RETVAL = Z_OK ; |
1653 | break ; |
1654 | } |
1655 | |
1656 | /* set up output to next available section of sliding window */ |
1657 | s->stream.avail_out = WINDOW_SIZE - s->window_have; |
1658 | s->stream.next_out = s->window + s->window_have; |
1659 | |
1660 | /* DispStream(s, "before inflate\n"); */ |
1661 | |
1662 | /* inflate and check for errors */ |
1663 | RETVAL = inflate(&(s->stream), Z_BLOCK); |
1664 | |
1665 | if (start_len > 1 && ! eof_mode) |
1666 | s->window_lastByte = *(s->stream.next_in - 1 ) ; |
1667 | |
1668 | if (RETVAL == Z_STREAM_ERROR || RETVAL == Z_MEM_ERROR || |
1669 | RETVAL == Z_DATA_ERROR ) |
1670 | break ; |
1671 | |
1672 | if (s->flags & FLAG_CRC32 ) |
1673 | s->crc32 = crc32(s->crc32, s->window + s->window_have, |
1674 | WINDOW_SIZE - s->window_have - s->stream.avail_out); |
1675 | |
1676 | if (s->flags & FLAG_ADLER32) |
1677 | s->adler32 = adler32(s->adler32, s->window + s->window_have, |
1678 | WINDOW_SIZE - s->window_have - s->stream.avail_out); |
1679 | |
1680 | s->uncompressedBytes = |
1681 | s->bytesInflated += WINDOW_SIZE - s->window_have - s->stream.avail_out; |
1682 | |
1683 | if (s->stream.avail_out) |
1684 | s->window_have = WINDOW_SIZE - s->stream.avail_out; |
1685 | else { |
1686 | s->window_have = 0; |
1687 | s->window_full = 1; |
1688 | } |
1689 | |
1690 | /* process end of block */ |
1691 | if (s->stream.data_type & 128) { |
1692 | if (s->stream.data_type & 64) { |
1693 | s->window_left = s->stream.data_type & 0x1f; |
1694 | } |
1695 | else { |
1696 | s->window_lastbit = s->stream.data_type & 0x1f; |
1697 | s->lastBlockOffset = s->stream.total_in; |
1698 | } |
1699 | } |
1700 | |
1701 | } while (RETVAL != Z_STREAM_END); |
1702 | |
1703 | s->last_error = RETVAL ; |
1704 | s->window_lastoff = s->stream.total_in ; |
1705 | s->compressedBytes += SvCUR(buf) - s->stream.avail_in ; |
1706 | |
1707 | if (RETVAL == Z_STREAM_END) |
1708 | { |
1709 | s->matchedEndBlock = 1 ; |
1710 | |
1711 | /* save the location of the end of the compressed data */ |
1712 | s->window_end = SvCUR(buf) - s->stream.avail_in - 1 ; |
1713 | s->window_endOffset = s->stream.total_in ; |
1714 | if (s->window_left) |
1715 | { |
1716 | -- s->window_endOffset ; |
1717 | } |
1718 | |
1719 | /* if window wrapped, build dictionary from window by rotating */ |
1720 | if (s->window_full) { |
1721 | rotate(s->window, WINDOW_SIZE, s->window_have); |
1722 | s->window_have = WINDOW_SIZE; |
1723 | } |
1724 | |
1725 | /* if (s->flags & FLAG_CONSUME_INPUT) { */ |
1726 | if (1) { |
1727 | unsigned in = s->stream.avail_in ; |
1728 | SvCUR_set(buf, in) ; |
1729 | if (in) |
1730 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
1731 | *SvEND(buf) = '\0'; |
1732 | SvSETMAGIC(buf); |
1733 | } |
1734 | } |
1735 | #endif |
1736 | OUTPUT: |
1737 | RETVAL |
1738 | |
1739 | |
1740 | uLong |
1741 | getEndOffset(s) |
1742 | Compress::Raw::Zlib::inflateScanStream s |
1743 | CODE: |
1744 | #ifndef MAGIC_APPEND |
1745 | croak("getEndOffset needs zlib 1.2.1 or better"); |
1746 | #else |
1747 | RETVAL = s->window_endOffset; |
1748 | #endif |
1749 | OUTPUT: |
1750 | RETVAL |
1751 | |
1752 | uLong |
1753 | inflateCount(s) |
1754 | Compress::Raw::Zlib::inflateScanStream s |
1755 | CODE: |
1756 | #ifndef MAGIC_APPEND |
1757 | croak("inflateCount needs zlib 1.2.1 or better"); |
1758 | #else |
1759 | RETVAL = s->bytesInflated; |
1760 | #endif |
1761 | OUTPUT: |
1762 | RETVAL |
1763 | |
1764 | uLong |
1765 | compressedBytes(s) |
1766 | Compress::Raw::Zlib::inflateScanStream s |
1767 | CODE: |
1768 | RETVAL = s->compressedBytes; |
1769 | OUTPUT: |
1770 | RETVAL |
1771 | |
1772 | uLong |
1773 | uncompressedBytes(s) |
1774 | Compress::Raw::Zlib::inflateScanStream s |
1775 | CODE: |
1776 | RETVAL = s->uncompressedBytes; |
1777 | OUTPUT: |
1778 | RETVAL |
1779 | |
1780 | |
1781 | uLong |
1782 | getLastBlockOffset(s) |
1783 | Compress::Raw::Zlib::inflateScanStream s |
1784 | CODE: |
1785 | #ifndef MAGIC_APPEND |
1786 | croak("getLastBlockOffset needs zlib 1.2.1 or better"); |
1787 | #else |
1788 | RETVAL = s->lastBlockOffset - (s->window_lastbit != 0); |
1789 | #endif |
1790 | OUTPUT: |
1791 | RETVAL |
1792 | |
1793 | uLong |
1794 | getLastBufferOffset(s) |
1795 | Compress::Raw::Zlib::inflateScanStream s |
1796 | CODE: |
1797 | #ifndef MAGIC_APPEND |
1798 | croak("getLastBufferOffset needs zlib 1.2.1 or better"); |
1799 | #else |
1800 | RETVAL = s->window_lastoff; |
1801 | #endif |
1802 | OUTPUT: |
1803 | RETVAL |
1804 | |
1805 | void |
1806 | resetLastBlockByte(s, byte) |
1807 | Compress::Raw::Zlib::inflateScanStream s |
1808 | unsigned char* byte |
1809 | CODE: |
1810 | #ifndef MAGIC_APPEND |
1811 | croak("resetLastBlockByte needs zlib 1.2.1 or better"); |
1812 | #else |
cb7abd7f |
1813 | if (byte != NULL) |
1814 | *byte = *byte ^ (1 << ((8 - s->window_lastbit) & 7)); |
25f0751f |
1815 | #endif |
1816 | |
1817 | |
1818 | void |
1819 | _createDeflateStream(inf_s, flags,level, method, windowBits, memLevel, strategy, bufsize) |
1820 | Compress::Raw::Zlib::inflateScanStream inf_s |
1821 | int flags |
1822 | int level |
1823 | int method |
1824 | int windowBits |
1825 | int memLevel |
1826 | int strategy |
1827 | uLong bufsize |
1828 | PPCODE: |
1829 | { |
1830 | #ifndef MAGIC_APPEND |
1831 | flags = flags; |
1832 | level = level ; |
1833 | method = method; |
1834 | windowBits = windowBits; |
1835 | memLevel = memLevel; |
1836 | strategy = strategy; |
1837 | bufsize= bufsize; |
1838 | croak("_createDeflateStream needs zlib 1.2.1 or better"); |
1839 | #else |
1840 | int err ; |
1841 | deflateStream s ; |
1842 | |
1843 | if (trace) |
1844 | warn("in _createDeflateStream(level=%d, method=%d, windowBits=%d, memLevel=%d, strategy=%d, bufsize=%lu\n", |
1845 | level, method, windowBits, memLevel, strategy, bufsize) ; |
1846 | if ((s = InitStream() )) { |
1847 | |
1848 | s->Level = level; |
1849 | s->Method = method; |
1850 | s->WindowBits = windowBits; |
1851 | s->MemLevel = memLevel; |
1852 | s->Strategy = strategy; |
1853 | |
1854 | err = deflateInit2(&(s->stream), level, |
1855 | method, windowBits, memLevel, strategy); |
1856 | |
1857 | if (err == Z_OK) { |
1858 | err = deflateSetDictionary(&(s->stream), inf_s->window, inf_s->window_have); |
1859 | s->dict_adler = s->stream.adler ; |
1860 | } |
1861 | |
1862 | if (err != Z_OK) { |
1863 | Safefree(s) ; |
1864 | s = NULL ; |
1865 | } |
1866 | else { |
1867 | PostInitStream(s, flags, bufsize, windowBits) ; |
1868 | s->crc32 = inf_s->crc32; |
1869 | s->adler32 = inf_s->adler32; |
1870 | s->stream.adler = inf_s->stream.adler ; |
1871 | /* s->stream.total_out = inf_s->bytesInflated ; */ |
1872 | s->stream.total_in = inf_s->stream.total_out ; |
1873 | if (inf_s->window_left) { |
1874 | /* printf("** window_left %d, window_lastByte %d\n", inf_s->window_left, inf_s->window_lastByte); */ |
1875 | deflatePrime(&(s->stream), 8 - inf_s->window_left, inf_s->window_lastByte); |
1876 | } |
1877 | } |
1878 | } |
1879 | else |
1880 | err = Z_MEM_ERROR ; |
1881 | |
1882 | XPUSHs(sv_setref_pv(sv_newmortal(), |
1883 | "Compress::Raw::Zlib::deflateStream", (void*)s)); |
1884 | if (GIMME == G_ARRAY) { |
1885 | SV * sv = sv_2mortal(newSViv(err)) ; |
1886 | setDUALstatus(sv, err); |
1887 | XPUSHs(sv) ; |
1888 | } |
1889 | #endif |
1890 | } |
1891 | |
1892 | DualType |
1893 | status(s) |
1894 | Compress::Raw::Zlib::inflateScanStream s |
1895 | CODE: |
1896 | RETVAL = s->last_error ; |
1897 | OUTPUT: |
1898 | RETVAL |
1899 | |
1900 | uLong |
1901 | crc32(s) |
1902 | Compress::Raw::Zlib::inflateScanStream s |
1903 | CODE: |
1904 | RETVAL = s->crc32 ; |
1905 | OUTPUT: |
1906 | RETVAL |
1907 | |
1908 | |
1909 | uLong |
1910 | adler32(s) |
1911 | Compress::Raw::Zlib::inflateScanStream s |
1912 | CODE: |
1913 | RETVAL = s->adler32 ; |
1914 | OUTPUT: |
1915 | RETVAL |
1916 | |