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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 | * |
319fab50 |
6 | * Copyright (c) 1995-2009 Paul Marquess. All rights reserved. |
25f0751f |
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 |
53 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1222 |
54 | # define AT_LEAST_ZLIB_1_2_2_2 |
55 | #endif |
56 | |
25f0751f |
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 |
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 |
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 |
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 |
89 | |
90 | |
25f0751f |
91 | |
258133d1 |
92 | #if 0 |
25f0751f |
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 |
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 |
116 | uLong crc32 ; |
117 | uLong adler32 ; |
118 | z_stream stream; |
119 | uLong bufsize; |
25f0751f |
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 |
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 |
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 |
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 |
474 | printf(" LIMIT %s\n", EnDis(FLAG_LIMIT_OUTPUT)); |
475 | |
25f0751f |
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 |
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 |
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 |
544 | default: |
545 | break; |
25f0751f |
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 |
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 |
583 | default: |
584 | break; |
25f0751f |
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 |
626 | #define Zip_zlib_version() (const char*)zlib_version |
627 | const char* |
25f0751f |
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 |
669 | OUTPUT: |
670 | RETVAL |
25f0751f |
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 |
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 |
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 |
782 | { |
783 | SV* obj = sv_setref_pv(sv_newmortal(), |
784 | "Compress::Raw::Zlib::deflateStream", (void*)s); |
785 | XPUSHs(obj); |
786 | } |
25f0751f |
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 |
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 |
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 |
851 | { |
852 | SV* obj = sv_setref_pv(sv_newmortal(), |
25f0751f |
853 | ix == 1 |
854 | ? "Compress::Raw::Zlib::inflateScanStream" |
855 | : "Compress::Raw::Zlib::inflateStream", |
d56f7e4c |
856 | (void*)s); |
857 | XPUSHs(obj); |
858 | } |
25f0751f |
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 |
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 |
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 |
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 |
983 | } |
984 | OUTPUT: |
985 | RETVAL |
25f0751f |
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 |
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 |
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 |
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 |
1087 | } |
1088 | OUTPUT: |
1089 | RETVAL |
25f0751f |
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 |
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 |
1282 | PREINIT: |
1283 | #ifdef UTF8_AVAILABLE |
1284 | bool out_utf8 = FALSE; |
1285 | #endif |
1286 | CODE: |
258133d1 |
1287 | bufinc = s->bufsize; |
25f0751f |
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 |
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 |
1318 | if (SvLEN(output)) { |
1319 | prefix_length = cur_length = SvCUR(output) ; |
319fab50 |
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 |
1336 | |
1337 | |
25f0751f |
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 |
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 |
1351 | } |
1352 | |
319fab50 |
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 |
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 |
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 |
1367 | if (RETVAL == Z_OK) |
1368 | continue; |
9253672d |
1369 | } |
1370 | |
319fab50 |
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 |
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 |
1387 | } |
1388 | #ifdef NEED_DUMMY_BYTE_AT_END |
9253672d |
1389 | if (eof && RETVAL == Z_OK && s->flags & FLAG_LIMIT_OUTPUT == 0) { |
25f0751f |
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 |
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 |
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 |
1410 | if (RETVAL == Z_OK || RETVAL == Z_STREAM_END || RETVAL == Z_BUF_ERROR || RETVAL == Z_DATA_ERROR) { |
1411 | unsigned in ; |
25f0751f |
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 |
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 |
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 |
1446 | } |
1447 | OUTPUT: |
1448 | RETVAL |
25f0751f |
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 |
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 |
1831 | if (byte != NULL) |
1832 | *byte = *byte ^ (1 << ((8 - s->window_lastbit) & 7)); |
25f0751f |
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 | |