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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 | * |
4e7676c7 |
6 | * Copyright (c) 1995-2007 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 | |
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 | |
9f44f717 |
61 | #ifdef USE_PPPORT_H |
62 | # define NEED_sv_2pvbyte |
63 | # define NEED_sv_2pv_nolen |
64 | # include "ppport.h" |
65 | #endif |
25f0751f |
66 | |
258133d1 |
67 | #if PERL_REVISION == 5 && (PERL_VERSION < 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) |
25f0751f |
68 | |
69 | # ifdef SvPVbyte_force |
70 | # undef SvPVbyte_force |
71 | # endif |
72 | |
73 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) |
74 | |
258133d1 |
75 | #endif |
25f0751f |
76 | |
258133d1 |
77 | #ifndef SvPVbyte_nolen |
25f0751f |
78 | # define SvPVbyte_nolen SvPV_nolen |
258133d1 |
79 | #endif |
25f0751f |
80 | |
81 | |
25f0751f |
82 | |
258133d1 |
83 | #if 0 |
25f0751f |
84 | # ifndef SvPVbyte_nolen |
85 | # define SvPVbyte_nolen SvPV_nolen |
86 | # endif |
87 | |
88 | # ifndef SvPVbyte_force |
89 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) |
90 | # endif |
258133d1 |
91 | #endif |
25f0751f |
92 | |
93 | #if PERL_REVISION == 5 && (PERL_VERSION >= 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) |
94 | # define UTF8_AVAILABLE |
95 | #endif |
96 | |
97 | typedef int DualType ; |
98 | typedef int int_undef ; |
99 | |
100 | typedef struct di_stream { |
101 | int flags ; |
102 | #define FLAG_APPEND 1 |
103 | #define FLAG_CRC32 2 |
104 | #define FLAG_ADLER32 4 |
105 | #define FLAG_CONSUME_INPUT 8 |
106 | uLong crc32 ; |
107 | uLong adler32 ; |
108 | z_stream stream; |
109 | uLong bufsize; |
25f0751f |
110 | SV * dictionary ; |
111 | uLong dict_adler ; |
112 | int last_error ; |
113 | bool zip_mode ; |
114 | #define SETP_BYTE |
115 | #ifdef SETP_BYTE |
116 | bool deflateParams_out_valid ; |
117 | Bytef deflateParams_out_byte; |
118 | #else |
119 | #define deflateParams_BUFFER_SIZE 0x4000 |
120 | uLong deflateParams_out_length; |
121 | Bytef* deflateParams_out_buffer; |
122 | #endif |
123 | int Level; |
124 | int Method; |
125 | int WindowBits; |
126 | int MemLevel; |
127 | int Strategy; |
128 | uLong bytesInflated ; |
129 | uLong compressedBytes ; |
130 | uLong uncompressedBytes ; |
131 | #ifdef MAGIC_APPEND |
132 | |
133 | #define WINDOW_SIZE 32768U |
134 | |
135 | bool matchedEndBlock; |
136 | Bytef* window ; |
137 | int window_lastbit, window_left, window_full; |
138 | unsigned window_have; |
139 | off_t window_lastoff, window_end; |
140 | off_t window_endOffset; |
141 | |
142 | uLong lastBlockOffset ; |
143 | unsigned char window_lastByte ; |
144 | |
145 | |
146 | #endif |
147 | } di_stream; |
148 | |
149 | typedef di_stream * deflateStream ; |
150 | typedef di_stream * Compress__Raw__Zlib__deflateStream ; |
151 | typedef di_stream * inflateStream ; |
152 | typedef di_stream * Compress__Raw__Zlib__inflateStream ; |
153 | typedef di_stream * Compress__Raw__Zlib__inflateScanStream ; |
154 | |
25f0751f |
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 | |
25f0751f |
231 | static const char * const my_z_errmsg[] = { |
232 | "need dictionary", /* Z_NEED_DICT 2 */ |
233 | "stream end", /* Z_STREAM_END 1 */ |
234 | "", /* Z_OK 0 */ |
235 | "file error", /* Z_ERRNO (-1) */ |
236 | "stream error", /* Z_STREAM_ERROR (-2) */ |
237 | "data error", /* Z_DATA_ERROR (-3) */ |
238 | "insufficient memory", /* Z_MEM_ERROR (-4) */ |
239 | "buffer error", /* Z_BUF_ERROR (-5) */ |
240 | "incompatible version",/* Z_VERSION_ERROR(-6) */ |
241 | ""}; |
242 | |
243 | #define setDUALstatus(var, err) \ |
244 | sv_setnv(var, (double)err) ; \ |
245 | sv_setpv(var, ((err) ? GetErrorString(err) : "")) ; \ |
246 | SvNOK_on(var); |
247 | |
248 | |
249 | #if defined(__SYMBIAN32__) |
250 | # define NO_WRITEABLE_DATA |
251 | #endif |
252 | |
253 | #define TRACE_DEFAULT 0 |
254 | |
255 | #ifdef NO_WRITEABLE_DATA |
256 | # define trace TRACE_DEFAULT |
257 | #else |
258 | static int trace = TRACE_DEFAULT ; |
259 | #endif |
260 | |
261 | /* Dodge PerlIO hiding of these functions. */ |
262 | #undef printf |
263 | |
264 | static char * |
265 | #ifdef CAN_PROTOTYPE |
266 | GetErrorString(int error_no) |
267 | #else |
268 | GetErrorString(error_no) |
269 | int error_no ; |
270 | #endif |
271 | { |
272 | dTHX; |
273 | char * errstr ; |
274 | |
275 | if (error_no == Z_ERRNO) { |
276 | errstr = Strerror(errno) ; |
277 | } |
278 | else |
279 | /* errstr = gzerror(fil, &error_no) ; */ |
280 | errstr = (char*) my_z_errmsg[2 - error_no]; |
281 | |
282 | return errstr ; |
283 | } |
284 | |
25f0751f |
285 | |
286 | #ifdef MAGIC_APPEND |
287 | |
288 | /* |
289 | The following two functions are taken almost directly from |
290 | examples/gzappend.c. Only cosmetic changes have been made to conform to |
291 | the coding style of the rest of the code in this file. |
292 | */ |
293 | |
294 | |
295 | /* return the greatest common divisor of a and b using Euclid's algorithm, |
296 | modified to be fast when one argument much greater than the other, and |
297 | coded to avoid unnecessary swapping */ |
298 | static unsigned |
299 | #ifdef CAN_PROTOTYPE |
300 | gcd(unsigned a, unsigned b) |
301 | #else |
302 | gcd(a, b) |
303 | unsigned a; |
304 | unsigned b; |
305 | #endif |
306 | { |
307 | unsigned c; |
308 | |
309 | while (a && b) |
310 | if (a > b) { |
311 | c = b; |
312 | while (a - c >= c) |
313 | c <<= 1; |
314 | a -= c; |
315 | } |
316 | else { |
317 | c = a; |
318 | while (b - c >= c) |
319 | c <<= 1; |
320 | b -= c; |
321 | } |
322 | return a + b; |
323 | } |
324 | |
325 | /* rotate list[0..len-1] left by rot positions, in place */ |
326 | static void |
327 | #ifdef CAN_PROTOTYPE |
328 | rotate(unsigned char *list, unsigned len, unsigned rot) |
329 | #else |
330 | rotate(list, len, rot) |
331 | unsigned char *list; |
332 | unsigned len ; |
333 | unsigned rot; |
334 | #endif |
335 | { |
336 | unsigned char tmp; |
337 | unsigned cycles; |
338 | unsigned char *start, *last, *to, *from; |
339 | |
340 | /* normalize rot and handle degenerate cases */ |
341 | if (len < 2) return; |
342 | if (rot >= len) rot %= len; |
343 | if (rot == 0) return; |
344 | |
345 | /* pointer to last entry in list */ |
346 | last = list + (len - 1); |
347 | |
348 | /* do simple left shift by one */ |
349 | if (rot == 1) { |
350 | tmp = *list; |
351 | memcpy(list, list + 1, len - 1); |
352 | *last = tmp; |
353 | return; |
354 | } |
355 | |
356 | /* do simple right shift by one */ |
357 | if (rot == len - 1) { |
358 | tmp = *last; |
359 | memmove(list + 1, list, len - 1); |
360 | *list = tmp; |
361 | return; |
362 | } |
363 | |
364 | /* otherwise do rotate as a set of cycles in place */ |
365 | cycles = gcd(len, rot); /* number of cycles */ |
366 | do { |
367 | start = from = list + cycles; /* start index is arbitrary */ |
368 | tmp = *from; /* save entry to be overwritten */ |
369 | for (;;) { |
370 | to = from; /* next step in cycle */ |
371 | from += rot; /* go right rot positions */ |
372 | if (from > last) from -= len; /* (pointer better not wrap) */ |
373 | if (from == start) break; /* all but one shifted */ |
374 | *to = *from; /* shift left */ |
375 | } |
376 | *to = tmp; /* complete the circle */ |
377 | } while (--cycles); |
378 | } |
379 | |
380 | #endif /* MAGIC_APPEND */ |
381 | |
382 | static void |
383 | #ifdef CAN_PROTOTYPE |
384 | DispHex(void * ptr, int length) |
385 | #else |
386 | DispHex(ptr, length) |
387 | void * ptr; |
388 | int length; |
389 | #endif |
390 | { |
391 | char * p = (char*)ptr; |
392 | int i; |
393 | for (i = 0; i < length; ++i) { |
394 | printf(" %02x", 0xFF & *(p+i)); |
395 | } |
396 | } |
397 | |
398 | |
399 | static void |
400 | #ifdef CAN_PROTOTYPE |
401 | DispStream(di_stream * s, char * message) |
402 | #else |
403 | DispStream(s, message) |
404 | di_stream * s; |
405 | char * message; |
406 | #endif |
407 | { |
408 | |
409 | #if 0 |
410 | if (! trace) |
411 | return ; |
412 | #endif |
413 | |
414 | #define EnDis(f) (s->flags & f ? "Enabled" : "Disabled") |
415 | |
416 | printf("DispStream 0x%p", s) ; |
417 | if (message) |
418 | printf("- %s \n", message) ; |
419 | printf("\n") ; |
420 | |
421 | if (!s) { |
422 | printf(" stream pointer is NULL\n"); |
423 | } |
424 | else { |
425 | printf(" stream 0x%p\n", &(s->stream)); |
426 | printf(" zalloc 0x%p\n", s->stream.zalloc); |
427 | printf(" zfree 0x%p\n", s->stream.zfree); |
428 | printf(" opaque 0x%p\n", s->stream.opaque); |
429 | if (s->stream.msg) |
430 | printf(" msg %s\n", s->stream.msg); |
431 | else |
432 | printf(" msg \n"); |
433 | printf(" next_in 0x%p", s->stream.next_in); |
434 | if (s->stream.next_in){ |
435 | printf(" =>"); |
436 | DispHex(s->stream.next_in, 4); |
437 | } |
438 | printf("\n"); |
439 | |
440 | printf(" next_out 0x%p", s->stream.next_out); |
441 | if (s->stream.next_out){ |
442 | printf(" =>"); |
443 | DispHex(s->stream.next_out, 4); |
444 | } |
445 | printf("\n"); |
446 | |
447 | printf(" avail_in %lu\n", (unsigned long)s->stream.avail_in); |
448 | printf(" avail_out %lu\n", (unsigned long)s->stream.avail_out); |
449 | printf(" total_in %ld\n", s->stream.total_in); |
450 | printf(" total_out %ld\n", s->stream.total_out); |
451 | printf(" adler %ld\n", s->stream.adler ); |
452 | printf(" bufsize %ld\n", s->bufsize); |
453 | printf(" dictionary 0x%p\n", s->dictionary); |
454 | printf(" dict_adler 0x%ld\n",s->dict_adler); |
455 | printf(" zip_mode %d\n", s->zip_mode); |
456 | printf(" crc32 0x%x\n", (unsigned)s->crc32); |
457 | printf(" adler32 0x%x\n", (unsigned)s->adler32); |
458 | printf(" flags 0x%x\n", s->flags); |
459 | printf(" APPEND %s\n", EnDis(FLAG_APPEND)); |
460 | printf(" CRC32 %s\n", EnDis(FLAG_CRC32)); |
461 | printf(" ADLER32 %s\n", EnDis(FLAG_ADLER32)); |
462 | printf(" CONSUME %s\n", EnDis(FLAG_CONSUME_INPUT)); |
463 | |
464 | #ifdef MAGIC_APPEND |
465 | printf(" window 0x%p\n", s->window); |
466 | #endif |
467 | printf("\n"); |
468 | |
469 | } |
470 | } |
471 | |
472 | static di_stream * |
473 | #ifdef CAN_PROTOTYPE |
474 | InitStream(void) |
475 | #else |
476 | InitStream() |
477 | #endif |
478 | { |
479 | di_stream *s ; |
480 | |
481 | ZMALLOC(s, di_stream) ; |
482 | |
483 | return s ; |
484 | |
485 | } |
486 | |
487 | static void |
488 | #ifdef CAN_PROTOTYPE |
489 | PostInitStream(di_stream * s, int flags, int bufsize, int windowBits) |
490 | #else |
491 | PostInitStream(s, flags, bufsize, windowBits) |
492 | di_stream *s ; |
493 | int flags ; |
494 | int bufsize ; |
495 | int windowBits ; |
496 | #endif |
497 | { |
498 | s->bufsize = bufsize ; |
25f0751f |
499 | s->compressedBytes = |
500 | s->uncompressedBytes = |
501 | s->last_error = 0 ; |
502 | s->flags = flags ; |
503 | s->zip_mode = (windowBits < 0) ; |
504 | if (flags & FLAG_CRC32) |
505 | s->crc32 = crcInitial ; |
506 | if (flags & FLAG_ADLER32) |
507 | s->adler32 = adlerInitial ; |
508 | } |
509 | |
510 | |
511 | static SV* |
512 | #ifdef CAN_PROTOTYPE |
513 | deRef(SV * sv, char * string) |
514 | #else |
515 | deRef(sv, string) |
516 | SV * sv ; |
517 | char * string; |
518 | #endif |
519 | { |
520 | dTHX; |
521 | SvGETMAGIC(sv); |
522 | |
523 | if (SvROK(sv)) { |
524 | sv = SvRV(sv) ; |
525 | SvGETMAGIC(sv); |
526 | switch(SvTYPE(sv)) { |
527 | case SVt_PVAV: |
528 | case SVt_PVHV: |
529 | case SVt_PVCV: |
530 | croak("%s: buffer parameter is not a SCALAR reference", string); |
531 | } |
532 | if (SvROK(sv)) |
533 | croak("%s: buffer parameter is a reference to a reference", string) ; |
534 | } |
535 | |
536 | if (!SvOK(sv)) { |
537 | sv = newSVpv("", 0); |
538 | } |
539 | |
540 | return sv ; |
541 | } |
542 | |
543 | static SV* |
544 | #ifdef CAN_PROTOTYPE |
545 | deRef_l(SV * sv, char * string) |
546 | #else |
547 | deRef_l(sv, string) |
548 | SV * sv ; |
549 | char * string ; |
550 | #endif |
551 | { |
552 | dTHX; |
553 | bool wipe = 0 ; |
554 | |
555 | SvGETMAGIC(sv); |
556 | wipe = ! SvOK(sv) ; |
557 | |
558 | if (SvROK(sv)) { |
559 | sv = SvRV(sv) ; |
560 | SvGETMAGIC(sv); |
561 | wipe = ! SvOK(sv) ; |
562 | |
563 | switch(SvTYPE(sv)) { |
564 | case SVt_PVAV: |
565 | case SVt_PVHV: |
566 | case SVt_PVCV: |
567 | croak("%s: buffer parameter is not a SCALAR reference", string); |
568 | } |
569 | if (SvROK(sv)) |
570 | croak("%s: buffer parameter is a reference to a reference", string) ; |
571 | } |
572 | |
573 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) |
574 | croak("%s: buffer parameter is read-only", string); |
575 | |
576 | SvUPGRADE(sv, SVt_PV); |
577 | |
578 | if (wipe) |
579 | SvCUR_set(sv, 0); |
580 | |
581 | SvOOK_off(sv); |
582 | SvPOK_only(sv); |
583 | |
584 | return sv ; |
585 | } |
586 | |
587 | |
588 | #include "constants.h" |
589 | |
590 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib PREFIX = Zip_ |
591 | |
592 | REQUIRE: 1.924 |
593 | PROTOTYPES: DISABLE |
594 | |
595 | INCLUDE: constants.xs |
596 | |
597 | BOOT: |
598 | /* Check this version of zlib is == 1 */ |
599 | if (zlibVersion()[0] != '1') |
600 | croak("Compress::Raw::Zlib needs zlib version 1.x\n") ; |
601 | |
602 | { |
603 | /* Create the $os_code scalar */ |
604 | SV * os_code_sv = perl_get_sv("Compress::Raw::Zlib::gzip_os_code", GV_ADDMULTI) ; |
605 | sv_setiv(os_code_sv, GZIP_OS_CODE) ; |
606 | } |
607 | |
608 | |
d56f7e4c |
609 | #define Zip_zlib_version() (const char*)zlib_version |
610 | const char* |
25f0751f |
611 | Zip_zlib_version() |
612 | |
613 | unsigned |
614 | ZLIB_VERNUM() |
615 | CODE: |
616 | #ifdef ZLIB_VERNUM |
617 | RETVAL = ZLIB_VERNUM ; |
618 | #else |
619 | /* 1.1.4 => 0x1140 */ |
620 | RETVAL = (ZLIB_VERSION[0] - '0') << 12 ; |
621 | RETVAL += (ZLIB_VERSION[2] - '0') << 8 ; |
622 | RETVAL += (ZLIB_VERSION[4] - '0') << 4 ; |
623 | #endif |
624 | OUTPUT: |
625 | RETVAL |
626 | |
627 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib PREFIX = Zip_ |
628 | |
629 | #define Zip_adler32(buf, adler) adler32(adler, buf, (uInt)len) |
630 | |
631 | uLong |
632 | Zip_adler32(buf, adler=adlerInitial) |
633 | uLong adler = NO_INIT |
634 | STRLEN len = NO_INIT |
635 | Bytef * buf = NO_INIT |
636 | SV * sv = ST(0) ; |
637 | INIT: |
638 | /* If the buffer is a reference, dereference it */ |
639 | sv = deRef(sv, "adler32") ; |
640 | #ifdef UTF8_AVAILABLE |
641 | if (DO_UTF8(sv) && !sv_utf8_downgrade(sv, 1)) |
642 | croak("Wide character in Compress::Raw::Zlib::adler32"); |
643 | #endif |
644 | buf = (Byte*)SvPVbyte(sv, len) ; |
645 | |
646 | if (items < 2) |
647 | adler = adlerInitial; |
648 | else if (SvOK(ST(1))) |
649 | adler = SvUV(ST(1)) ; |
650 | else |
651 | adler = adlerInitial; |
d56f7e4c |
652 | OUTPUT: |
653 | RETVAL |
25f0751f |
654 | |
655 | #define Zip_crc32(buf, crc) crc32(crc, buf, (uInt)len) |
656 | |
657 | uLong |
658 | Zip_crc32(buf, crc=crcInitial) |
659 | uLong crc = NO_INIT |
660 | STRLEN len = NO_INIT |
661 | Bytef * buf = NO_INIT |
662 | SV * sv = ST(0) ; |
663 | INIT: |
664 | /* If the buffer is a reference, dereference it */ |
665 | sv = deRef(sv, "crc32") ; |
666 | #ifdef UTF8_AVAILABLE |
667 | if (DO_UTF8(sv) && !sv_utf8_downgrade(sv, 1)) |
668 | croak("Wide character in Compress::Raw::Zlib::crc32"); |
669 | #endif |
670 | buf = (Byte*)SvPVbyte(sv, len) ; |
671 | |
672 | if (items < 2) |
673 | crc = crcInitial; |
674 | else if (SvOK(ST(1))) |
675 | crc = SvUV(ST(1)) ; |
676 | else |
677 | crc = crcInitial; |
678 | |
679 | |
680 | uLong |
681 | crc32_combine(crc1, crc2, len2) |
682 | uLong crc1 |
683 | uLong crc2 |
684 | z_off_t len2 |
685 | CODE: |
686 | #ifndef AT_LEAST_ZLIB_1_2_2_1 |
687 | crc1 = crc1; crc2 = crc2 ; len2 = len2; /* Silence -Wall */ |
688 | croak("crc32_combine needs zlib 1.2.3 or better"); |
689 | #else |
690 | RETVAL = crc32_combine(crc1, crc2, len2); |
691 | #endif |
692 | OUTPUT: |
693 | RETVAL |
694 | |
695 | |
696 | uLong |
697 | adler32_combine(adler1, adler2, len2) |
698 | uLong adler1 |
699 | uLong adler2 |
700 | z_off_t len2 |
701 | CODE: |
702 | #ifndef AT_LEAST_ZLIB_1_2_2_1 |
703 | adler1 = adler1; adler2 = adler2 ; len2 = len2; /* Silence -Wall */ |
704 | croak("adler32_combine needs zlib 1.2.3 or better"); |
705 | #else |
706 | RETVAL = adler32_combine(adler1, adler2, len2); |
707 | #endif |
708 | OUTPUT: |
709 | RETVAL |
710 | |
711 | |
712 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib |
713 | |
714 | void |
715 | _deflateInit(flags,level, method, windowBits, memLevel, strategy, bufsize, dictionary) |
716 | int flags |
717 | int level |
718 | int method |
719 | int windowBits |
720 | int memLevel |
721 | int strategy |
722 | uLong bufsize |
723 | SV* dictionary |
724 | PPCODE: |
725 | int err ; |
726 | deflateStream s ; |
727 | |
d56f7e4c |
728 | if (trace) |
729 | warn("in _deflateInit(level=%d, method=%d, windowBits=%d, memLevel=%d, strategy=%d, bufsize=%ld dictionary=%p)\n", |
730 | level, method, windowBits, memLevel, strategy, bufsize, dictionary) ; |
25f0751f |
731 | if ((s = InitStream() )) { |
732 | |
733 | s->Level = level; |
734 | s->Method = method; |
735 | s->WindowBits = windowBits; |
736 | s->MemLevel = memLevel; |
737 | s->Strategy = strategy; |
738 | |
739 | err = deflateInit2(&(s->stream), level, |
740 | method, windowBits, memLevel, strategy); |
741 | |
742 | /* Check if a dictionary has been specified */ |
743 | |
744 | if (err == Z_OK && SvCUR(dictionary)) { |
745 | #ifdef UTF8_AVAILABLE |
746 | if (DO_UTF8(dictionary) && !sv_utf8_downgrade(dictionary, 1)) |
747 | croak("Wide character in Compress::Raw::Zlib::Deflate::new dicrionary parameter"); |
748 | #endif |
749 | err = deflateSetDictionary(&(s->stream), (const Bytef*) SvPVbyte_nolen(dictionary), |
750 | SvCUR(dictionary)) ; |
751 | s->dict_adler = s->stream.adler ; |
752 | } |
753 | |
754 | if (err != Z_OK) { |
755 | Safefree(s) ; |
756 | s = NULL ; |
757 | } |
758 | else |
759 | PostInitStream(s, flags, bufsize, windowBits) ; |
760 | |
761 | } |
762 | else |
763 | err = Z_MEM_ERROR ; |
764 | |
d56f7e4c |
765 | { |
766 | SV* obj = sv_setref_pv(sv_newmortal(), |
767 | "Compress::Raw::Zlib::deflateStream", (void*)s); |
768 | XPUSHs(obj); |
769 | } |
25f0751f |
770 | if (GIMME == G_ARRAY) { |
771 | SV * sv = sv_2mortal(newSViv(err)) ; |
772 | setDUALstatus(sv, err); |
773 | XPUSHs(sv) ; |
774 | } |
775 | |
776 | void |
777 | _inflateInit(flags, windowBits, bufsize, dictionary) |
778 | int flags |
779 | int windowBits |
780 | uLong bufsize |
781 | SV * dictionary |
782 | ALIAS: |
783 | _inflateScanInit = 1 |
784 | PPCODE: |
785 | |
786 | int err = Z_OK ; |
787 | inflateStream s ; |
788 | #ifndef MAGIC_APPEND |
789 | if (ix == 1) |
790 | croak("inflateScanInit needs zlib 1.2.1 or better"); |
791 | #endif |
792 | if (trace) |
793 | warn("in _inflateInit(windowBits=%d, bufsize=%lu, dictionary=%lu\n", |
794 | windowBits, bufsize, (unsigned long)SvCUR(dictionary)) ; |
795 | if ((s = InitStream() )) { |
796 | |
797 | s->WindowBits = windowBits; |
798 | |
799 | err = inflateInit2(&(s->stream), windowBits); |
800 | if (err != Z_OK) { |
801 | Safefree(s) ; |
802 | s = NULL ; |
803 | } |
804 | else if (SvCUR(dictionary)) { |
805 | /* Dictionary specified - take a copy for use in inflate */ |
806 | s->dictionary = newSVsv(dictionary) ; |
807 | } |
808 | if (s) { |
809 | PostInitStream(s, flags, bufsize, windowBits) ; |
810 | #ifdef MAGIC_APPEND |
811 | if (ix == 1) |
812 | { |
813 | s->window = (unsigned char *)safemalloc(WINDOW_SIZE); |
814 | } |
815 | #endif |
816 | } |
817 | } |
818 | else |
819 | err = Z_MEM_ERROR ; |
820 | |
d56f7e4c |
821 | { |
822 | SV* obj = sv_setref_pv(sv_newmortal(), |
25f0751f |
823 | ix == 1 |
824 | ? "Compress::Raw::Zlib::inflateScanStream" |
825 | : "Compress::Raw::Zlib::inflateStream", |
d56f7e4c |
826 | (void*)s); |
827 | XPUSHs(obj); |
828 | } |
25f0751f |
829 | if (GIMME == G_ARRAY) { |
830 | SV * sv = sv_2mortal(newSViv(err)) ; |
831 | setDUALstatus(sv, err); |
832 | XPUSHs(sv) ; |
833 | } |
834 | |
835 | |
836 | |
837 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::deflateStream |
838 | |
839 | void |
840 | DispStream(s, message=NULL) |
841 | Compress::Raw::Zlib::deflateStream s |
842 | char * message |
843 | |
844 | DualType |
845 | deflateReset(s) |
846 | Compress::Raw::Zlib::deflateStream s |
847 | CODE: |
848 | RETVAL = deflateReset(&(s->stream)) ; |
849 | if (RETVAL == Z_OK) { |
850 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; |
851 | } |
852 | OUTPUT: |
853 | RETVAL |
854 | |
855 | DualType |
856 | deflate (s, buf, output) |
857 | Compress::Raw::Zlib::deflateStream s |
858 | SV * buf |
859 | SV * output |
860 | uInt cur_length = NO_INIT |
861 | uInt increment = NO_INIT |
862 | uInt prefix = NO_INIT |
863 | int RETVAL = 0; |
258133d1 |
864 | uLong bufinc = NO_INIT |
25f0751f |
865 | CODE: |
258133d1 |
866 | bufinc = s->bufsize; |
25f0751f |
867 | |
868 | /* If the input buffer is a reference, dereference it */ |
869 | buf = deRef(buf, "deflate") ; |
870 | |
871 | /* initialise the input buffer */ |
872 | #ifdef UTF8_AVAILABLE |
873 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
874 | croak("Wide character in Compress::Raw::Zlib::Deflate::deflate input parameter"); |
875 | #endif |
876 | s->stream.next_in = (Bytef*)SvPVbyte_nolen(buf) ; |
877 | s->stream.avail_in = SvCUR(buf) ; |
878 | |
879 | if (s->flags & FLAG_CRC32) |
880 | s->crc32 = crc32(s->crc32, s->stream.next_in, s->stream.avail_in) ; |
881 | |
882 | if (s->flags & FLAG_ADLER32) |
883 | s->adler32 = adler32(s->adler32, s->stream.next_in, s->stream.avail_in) ; |
884 | |
885 | /* and retrieve the output buffer */ |
886 | output = deRef_l(output, "deflate") ; |
887 | #ifdef UTF8_AVAILABLE |
888 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
889 | croak("Wide character in Compress::Raw::Zlib::Deflate::deflate output parameter"); |
890 | #endif |
891 | |
892 | if((s->flags & FLAG_APPEND) != FLAG_APPEND) { |
893 | SvCUR_set(output, 0); |
894 | /* sv_setpvn(output, "", 0); */ |
895 | } |
896 | prefix = cur_length = SvCUR(output) ; |
897 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
898 | increment = SvLEN(output) - cur_length; |
899 | s->stream.avail_out = increment; |
900 | #ifdef SETP_BYTE |
901 | /* Check for saved output from deflateParams */ |
902 | if (s->deflateParams_out_valid) { |
903 | *(s->stream.next_out) = s->deflateParams_out_byte; |
904 | ++ s->stream.next_out; |
905 | -- s->stream.avail_out ; |
906 | s->deflateParams_out_valid = FALSE; |
907 | } |
908 | #else |
909 | /* Check for saved output from deflateParams */ |
910 | if (s->deflateParams_out_length) { |
911 | uLong plen = s->deflateParams_out_length ; |
912 | /* printf("Copy %d bytes saved data\n", plen);*/ |
913 | if (s->stream.avail_out < plen) { |
914 | /*printf("GROW from %d to %d\n", s->stream.avail_out, |
915 | SvLEN(output) + plen - s->stream.avail_out); */ |
916 | Sv_Grow(output, SvLEN(output) + plen - s->stream.avail_out) ; |
917 | } |
918 | |
919 | Copy(s->stream.next_out, s->deflateParams_out_buffer, plen, Bytef) ; |
920 | cur_length = cur_length + plen; |
921 | SvCUR_set(output, cur_length); |
922 | s->stream.next_out += plen ; |
923 | s->stream.avail_out = SvLEN(output) - cur_length ; |
924 | increment = s->stream.avail_out; |
925 | s->deflateParams_out_length = 0; |
926 | } |
927 | #endif |
928 | while (s->stream.avail_in != 0) { |
929 | |
930 | if (s->stream.avail_out == 0) { |
931 | /* out of space in the output buffer so make it bigger */ |
258133d1 |
932 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f |
933 | cur_length += increment ; |
934 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
258133d1 |
935 | increment = bufinc ; |
25f0751f |
936 | s->stream.avail_out = increment; |
258133d1 |
937 | bufinc *= 2 ; |
25f0751f |
938 | } |
939 | |
940 | RETVAL = deflate(&(s->stream), Z_NO_FLUSH); |
941 | if (RETVAL != Z_OK) |
942 | break; |
943 | } |
944 | |
945 | s->compressedBytes += cur_length + increment - prefix - s->stream.avail_out ; |
946 | s->uncompressedBytes += SvCUR(buf) - s->stream.avail_in ; |
947 | |
948 | s->last_error = RETVAL ; |
949 | if (RETVAL == Z_OK) { |
950 | SvPOK_only(output); |
951 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; |
4e7676c7 |
952 | SvSETMAGIC(output); |
25f0751f |
953 | } |
954 | OUTPUT: |
955 | RETVAL |
25f0751f |
956 | |
957 | |
958 | void |
959 | DESTROY(s) |
960 | Compress::Raw::Zlib::deflateStream s |
961 | CODE: |
962 | deflateEnd(&s->stream) ; |
963 | if (s->dictionary) |
964 | SvREFCNT_dec(s->dictionary) ; |
965 | #ifndef SETP_BYTE |
966 | if (s->deflateParams_out_buffer) |
967 | Safefree(s->deflateParams_out_buffer); |
968 | #endif |
969 | Safefree(s) ; |
970 | |
971 | |
972 | DualType |
973 | flush(s, output, f=Z_FINISH) |
974 | Compress::Raw::Zlib::deflateStream s |
975 | SV * output |
976 | int f |
977 | uInt cur_length = NO_INIT |
978 | uInt increment = NO_INIT |
979 | uInt prefix = NO_INIT |
258133d1 |
980 | uLong bufinc = NO_INIT |
25f0751f |
981 | CODE: |
258133d1 |
982 | bufinc = s->bufsize; |
25f0751f |
983 | |
984 | s->stream.avail_in = 0; /* should be zero already anyway */ |
985 | |
986 | /* retrieve the output buffer */ |
987 | output = deRef_l(output, "flush") ; |
988 | #ifdef UTF8_AVAILABLE |
989 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
990 | croak("Wide character in Compress::Raw::Zlib::Deflate::flush input parameter"); |
991 | #endif |
992 | if(! s->flags & FLAG_APPEND) { |
993 | SvCUR_set(output, 0); |
994 | /* sv_setpvn(output, "", 0); */ |
995 | } |
996 | prefix = cur_length = SvCUR(output) ; |
997 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
998 | increment = SvLEN(output) - cur_length; |
999 | s->stream.avail_out = increment; |
1000 | #ifdef SETP_BYTE |
1001 | /* Check for saved output from deflateParams */ |
1002 | if (s->deflateParams_out_valid) { |
1003 | *(s->stream.next_out) = s->deflateParams_out_byte; |
1004 | ++ s->stream.next_out; |
1005 | -- s->stream.avail_out ; |
1006 | s->deflateParams_out_valid = FALSE; |
1007 | } |
1008 | #else |
1009 | /* Check for saved output from deflateParams */ |
1010 | if (s->deflateParams_out_length) { |
1011 | uLong plen = s->deflateParams_out_length ; |
1012 | /* printf("Copy %d bytes saved data\n", plen); */ |
1013 | if (s->stream.avail_out < plen) { |
1014 | /* printf("GROW from %d to %d\n", s->stream.avail_out, |
1015 | SvLEN(output) + plen - s->stream.avail_out); */ |
1016 | Sv_Grow(output, SvLEN(output) + plen - s->stream.avail_out) ; |
1017 | } |
1018 | |
1019 | Copy(s->stream.next_out, s->deflateParams_out_buffer, plen, Bytef) ; |
1020 | cur_length = cur_length + plen; |
1021 | SvCUR_set(output, cur_length); |
1022 | s->stream.next_out += plen ; |
1023 | s->stream.avail_out = SvLEN(output) - cur_length ; |
1024 | increment = s->stream.avail_out; |
1025 | s->deflateParams_out_length = 0; |
1026 | } |
1027 | #endif |
1028 | |
1029 | for (;;) { |
1030 | if (s->stream.avail_out == 0) { |
1031 | /* consumed all the available output, so extend it */ |
258133d1 |
1032 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f |
1033 | cur_length += increment ; |
1034 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
258133d1 |
1035 | increment = bufinc ; |
25f0751f |
1036 | s->stream.avail_out = increment; |
258133d1 |
1037 | bufinc *= 2 ; |
25f0751f |
1038 | } |
1039 | RETVAL = deflate(&(s->stream), f); |
1040 | |
1041 | /* deflate has finished flushing only when it hasn't used up |
1042 | * all the available space in the output buffer: |
1043 | */ |
1044 | if (s->stream.avail_out != 0 || RETVAL != Z_OK ) |
1045 | break; |
1046 | } |
1047 | |
1048 | RETVAL = (RETVAL == Z_STREAM_END ? Z_OK : RETVAL) ; |
1049 | s->last_error = RETVAL ; |
1050 | |
1051 | s->compressedBytes += cur_length + increment - prefix - s->stream.avail_out ; |
1052 | |
1053 | if (RETVAL == Z_OK) { |
1054 | SvPOK_only(output); |
1055 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; |
4e7676c7 |
1056 | SvSETMAGIC(output); |
25f0751f |
1057 | } |
1058 | OUTPUT: |
1059 | RETVAL |
25f0751f |
1060 | |
1061 | |
1062 | DualType |
1063 | _deflateParams(s, flags, level, strategy, bufsize) |
1064 | Compress::Raw::Zlib::deflateStream s |
1065 | int flags |
1066 | int level |
1067 | int strategy |
1068 | uLong bufsize |
1069 | CODE: |
1070 | /* printf("_deflateParams(Flags %d Level %d Strategy %d Bufsize %d)\n", flags, level, strategy, bufsize); |
1071 | printf("Before -- Level %d, Strategy %d, Bufsize %d\n", s->Level, s->Strategy, s->bufsize); */ |
1072 | if (flags & 1) |
1073 | s->Level = level ; |
1074 | if (flags & 2) |
1075 | s->Strategy = strategy ; |
1076 | if (flags & 4) { |
1077 | s->bufsize = bufsize; |
25f0751f |
1078 | } |
1079 | /* printf("After -- Level %d, Strategy %d, Bufsize %d\n", s->Level, s->Strategy, s->bufsize);*/ |
1080 | #ifdef SETP_BYTE |
1081 | s->stream.avail_in = 0; |
1082 | s->stream.next_out = &(s->deflateParams_out_byte) ; |
1083 | s->stream.avail_out = 1; |
1084 | RETVAL = deflateParams(&(s->stream), s->Level, s->Strategy); |
1085 | s->deflateParams_out_valid = |
1086 | (RETVAL == Z_OK && s->stream.avail_out == 0) ; |
1087 | /* printf("RETVAL %d, avail out %d, byte %c\n", RETVAL, s->stream.avail_out, s->deflateParams_out_byte); */ |
1088 | #else |
1089 | /* printf("Level %d Strategy %d, Prev Len %d\n", |
1090 | s->Level, s->Strategy, s->deflateParams_out_length); */ |
1091 | s->stream.avail_in = 0; |
1092 | if (s->deflateParams_out_buffer == NULL) |
1093 | s->deflateParams_out_buffer = safemalloc(deflateParams_BUFFER_SIZE); |
1094 | s->stream.next_out = s->deflateParams_out_buffer ; |
1095 | s->stream.avail_out = deflateParams_BUFFER_SIZE; |
1096 | |
1097 | RETVAL = deflateParams(&(s->stream), s->Level, s->Strategy); |
1098 | s->deflateParams_out_length = deflateParams_BUFFER_SIZE - s->stream.avail_out; |
1099 | /* printf("RETVAL %d, length out %d, avail %d\n", |
1100 | RETVAL, s->deflateParams_out_length, s->stream.avail_out ); */ |
1101 | #endif |
1102 | OUTPUT: |
1103 | RETVAL |
1104 | |
1105 | |
1106 | int |
1107 | get_Level(s) |
1108 | Compress::Raw::Zlib::deflateStream s |
1109 | CODE: |
1110 | RETVAL = s->Level ; |
1111 | OUTPUT: |
1112 | RETVAL |
1113 | |
1114 | int |
1115 | get_Strategy(s) |
1116 | Compress::Raw::Zlib::deflateStream s |
1117 | CODE: |
1118 | RETVAL = s->Strategy ; |
1119 | OUTPUT: |
1120 | RETVAL |
1121 | |
1122 | |
1123 | uLong |
1124 | get_Bufsize(s) |
1125 | Compress::Raw::Zlib::deflateStream s |
1126 | CODE: |
1127 | RETVAL = s->bufsize ; |
1128 | OUTPUT: |
1129 | RETVAL |
1130 | |
1131 | |
1132 | int |
1133 | status(s) |
1134 | Compress::Raw::Zlib::deflateStream s |
1135 | CODE: |
1136 | RETVAL = s->last_error ; |
1137 | OUTPUT: |
1138 | RETVAL |
1139 | |
1140 | uLong |
1141 | crc32(s) |
1142 | Compress::Raw::Zlib::deflateStream s |
1143 | CODE: |
1144 | RETVAL = s->crc32 ; |
1145 | OUTPUT: |
1146 | RETVAL |
1147 | |
1148 | uLong |
1149 | dict_adler(s) |
1150 | Compress::Raw::Zlib::deflateStream s |
1151 | CODE: |
1152 | RETVAL = s->dict_adler ; |
1153 | OUTPUT: |
1154 | RETVAL |
1155 | |
1156 | uLong |
1157 | adler32(s) |
1158 | Compress::Raw::Zlib::deflateStream s |
1159 | CODE: |
1160 | RETVAL = s->adler32 ; |
1161 | OUTPUT: |
1162 | RETVAL |
1163 | |
1164 | uLong |
1165 | compressedBytes(s) |
1166 | Compress::Raw::Zlib::deflateStream s |
1167 | CODE: |
1168 | RETVAL = s->compressedBytes; |
1169 | OUTPUT: |
1170 | RETVAL |
1171 | |
1172 | uLong |
1173 | uncompressedBytes(s) |
1174 | Compress::Raw::Zlib::deflateStream s |
1175 | CODE: |
1176 | RETVAL = s->uncompressedBytes; |
1177 | OUTPUT: |
1178 | RETVAL |
1179 | |
1180 | uLong |
1181 | total_in(s) |
1182 | Compress::Raw::Zlib::deflateStream s |
1183 | CODE: |
1184 | RETVAL = s->stream.total_in ; |
1185 | OUTPUT: |
1186 | RETVAL |
1187 | |
1188 | uLong |
1189 | total_out(s) |
1190 | Compress::Raw::Zlib::deflateStream s |
1191 | CODE: |
1192 | RETVAL = s->stream.total_out ; |
1193 | OUTPUT: |
1194 | RETVAL |
1195 | |
1196 | char* |
1197 | msg(s) |
1198 | Compress::Raw::Zlib::deflateStream s |
1199 | CODE: |
1200 | RETVAL = s->stream.msg; |
1201 | OUTPUT: |
1202 | RETVAL |
1203 | |
1204 | int |
1205 | deflateTune(s, good_length, max_lazy, nice_length, max_chain) |
1206 | Compress::Raw::Zlib::deflateStream s |
1207 | int good_length |
1208 | int max_lazy |
1209 | int nice_length |
1210 | int max_chain |
1211 | CODE: |
1212 | #ifndef AT_LEAST_ZLIB_1_2_2_3 |
1213 | good_length = good_length; max_lazy = max_lazy ; /* Silence -Wall */ |
1214 | nice_length = nice_length; max_chain = max_chain; /* Silence -Wall */ |
1215 | croak("deflateTune needs zlib 1.2.2.3 or better"); |
1216 | #else |
1217 | RETVAL = deflateTune(&(s->stream), good_length, max_lazy, nice_length, max_chain); |
1218 | #endif |
1219 | OUTPUT: |
1220 | RETVAL |
1221 | |
1222 | |
1223 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::inflateStream |
1224 | |
1225 | void |
1226 | DispStream(s, message=NULL) |
1227 | Compress::Raw::Zlib::inflateStream s |
1228 | char * message |
1229 | |
1230 | DualType |
1231 | inflateReset(s) |
1232 | Compress::Raw::Zlib::inflateStream s |
1233 | CODE: |
1234 | RETVAL = inflateReset(&(s->stream)) ; |
1235 | if (RETVAL == Z_OK) { |
1236 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; |
1237 | } |
1238 | OUTPUT: |
1239 | RETVAL |
1240 | |
1241 | DualType |
1242 | inflate (s, buf, output, eof=FALSE) |
1243 | Compress::Raw::Zlib::inflateStream s |
1244 | SV * buf |
1245 | SV * output |
1246 | bool eof |
1247 | uInt cur_length = 0; |
1248 | uInt prefix_length = 0; |
1249 | uInt increment = 0; |
1250 | STRLEN stmp = NO_INIT |
258133d1 |
1251 | uLong bufinc = NO_INIT |
25f0751f |
1252 | PREINIT: |
1253 | #ifdef UTF8_AVAILABLE |
1254 | bool out_utf8 = FALSE; |
1255 | #endif |
1256 | CODE: |
258133d1 |
1257 | bufinc = s->bufsize; |
25f0751f |
1258 | /* If the buffer is a reference, dereference it */ |
1259 | buf = deRef(buf, "inflate") ; |
1260 | |
1261 | if (s->flags & FLAG_CONSUME_INPUT && SvREADONLY(buf)) |
1262 | croak("Compress::Raw::Zlib::Inflate::inflate input parameter cannot be read-only when ConsumeInput is specified"); |
1263 | #ifdef UTF8_AVAILABLE |
1264 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1265 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflate input parameter"); |
1266 | #endif |
1267 | |
1268 | /* initialise the input buffer */ |
1269 | s->stream.next_in = (Bytef*)SvPVbyte_force(buf, stmp) ; |
1270 | s->stream.avail_in = SvCUR(buf) ; |
1271 | |
1272 | /* and retrieve the output buffer */ |
1273 | output = deRef_l(output, "inflate") ; |
1274 | #ifdef UTF8_AVAILABLE |
1275 | if (DO_UTF8(output)) |
1276 | out_utf8 = TRUE ; |
1277 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
1278 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflate output parameter"); |
1279 | #endif |
1280 | if((s->flags & FLAG_APPEND) != FLAG_APPEND) { |
1281 | SvCUR_set(output, 0); |
1282 | } |
1283 | if (SvLEN(output)) { |
1284 | prefix_length = cur_length = SvCUR(output) ; |
1285 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
1286 | increment = SvLEN(output) - cur_length - 1; |
1287 | s->stream.avail_out = increment; |
1288 | } |
1289 | else { |
1290 | s->stream.avail_out = 0; |
1291 | } |
1292 | s->bytesInflated = 0; |
1293 | |
1294 | while (1) { |
1295 | |
258133d1 |
1296 | if (s->stream.avail_out == 0 ) { |
25f0751f |
1297 | /* out of space in the output buffer so make it bigger */ |
258133d1 |
1298 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f |
1299 | cur_length += increment ; |
1300 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
258133d1 |
1301 | increment = bufinc ; |
25f0751f |
1302 | s->stream.avail_out = increment; |
258133d1 |
1303 | bufinc *= 2 ; |
25f0751f |
1304 | } |
1305 | |
1306 | RETVAL = inflate(&(s->stream), Z_SYNC_FLUSH); |
1307 | |
1308 | if (RETVAL == Z_STREAM_ERROR || RETVAL == Z_MEM_ERROR || |
1309 | RETVAL == Z_DATA_ERROR || RETVAL == Z_STREAM_END ) |
1310 | break ; |
1311 | |
1312 | if (RETVAL == Z_BUF_ERROR) { |
1313 | if (s->stream.avail_out == 0) |
1314 | continue ; |
1315 | if (s->stream.avail_in == 0) { |
1316 | RETVAL = Z_OK ; |
1317 | break ; |
1318 | } |
1319 | } |
1320 | |
1321 | if (RETVAL == Z_NEED_DICT && s->dictionary) { |
1322 | s->dict_adler = s->stream.adler ; |
1323 | RETVAL = inflateSetDictionary(&(s->stream), |
1324 | (const Bytef*)SvPVbyte_nolen(s->dictionary), |
1325 | SvCUR(s->dictionary)); |
1326 | } |
1327 | |
1328 | if (RETVAL != Z_OK) |
1329 | break; |
1330 | } |
1331 | #ifdef NEED_DUMMY_BYTE_AT_END |
1332 | if (eof && RETVAL == Z_OK) { |
1333 | Bytef* nextIn = s->stream.next_in; |
1334 | uInt availIn = s->stream.avail_in; |
1335 | s->stream.next_in = (Bytef*) " "; |
1336 | s->stream.avail_in = 1; |
1337 | if (s->stream.avail_out == 0) { |
1338 | /* out of space in the output buffer so make it bigger */ |
258133d1 |
1339 | Sv_Grow(output, SvLEN(output) + bufinc) ; |
25f0751f |
1340 | cur_length += increment ; |
1341 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
258133d1 |
1342 | increment = bufinc ; |
25f0751f |
1343 | s->stream.avail_out = increment; |
258133d1 |
1344 | bufinc *= 2 ; |
25f0751f |
1345 | } |
1346 | RETVAL = inflate(&(s->stream), Z_SYNC_FLUSH); |
1347 | s->stream.next_in = nextIn ; |
1348 | s->stream.avail_in = availIn ; |
1349 | } |
1350 | #endif |
1351 | |
1352 | s->last_error = RETVAL ; |
1353 | if (RETVAL == Z_OK || RETVAL == Z_STREAM_END || RETVAL == Z_DATA_ERROR) { |
1354 | unsigned in ; |
1355 | |
1356 | s->bytesInflated = cur_length + increment - s->stream.avail_out - prefix_length; |
1357 | s->uncompressedBytes += s->bytesInflated ; |
1358 | s->compressedBytes += SvCUR(buf) - s->stream.avail_in ; |
1359 | |
1360 | SvPOK_only(output); |
1361 | SvCUR_set(output, prefix_length + s->bytesInflated) ; |
1362 | *SvEND(output) = '\0'; |
1363 | #ifdef UTF8_AVAILABLE |
1364 | if (out_utf8) |
1365 | sv_utf8_upgrade(output); |
1366 | #endif |
4e7676c7 |
1367 | SvSETMAGIC(output); |
25f0751f |
1368 | |
1369 | if (s->flags & FLAG_CRC32 ) |
1370 | s->crc32 = crc32(s->crc32, |
1371 | (const Bytef*)SvPVbyte_nolen(output)+prefix_length, |
1372 | SvCUR(output)-prefix_length) ; |
1373 | |
1374 | if (s->flags & FLAG_ADLER32) |
1375 | s->adler32 = adler32(s->adler32, |
1376 | (const Bytef*)SvPVbyte_nolen(output)+prefix_length, |
1377 | SvCUR(output)-prefix_length) ; |
1378 | |
1379 | /* fix the input buffer */ |
1380 | if (s->flags & FLAG_CONSUME_INPUT) { |
1381 | in = s->stream.avail_in ; |
1382 | SvCUR_set(buf, in) ; |
1383 | if (in) |
1384 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
1385 | *SvEND(buf) = '\0'; |
1386 | SvSETMAGIC(buf); |
1387 | } |
1388 | } |
1389 | OUTPUT: |
1390 | RETVAL |
25f0751f |
1391 | |
1392 | uLong |
1393 | inflateCount(s) |
1394 | Compress::Raw::Zlib::inflateStream s |
1395 | CODE: |
1396 | RETVAL = s->bytesInflated; |
1397 | OUTPUT: |
1398 | RETVAL |
1399 | |
1400 | uLong |
1401 | compressedBytes(s) |
1402 | Compress::Raw::Zlib::inflateStream s |
1403 | CODE: |
1404 | RETVAL = s->compressedBytes; |
1405 | OUTPUT: |
1406 | RETVAL |
1407 | |
1408 | uLong |
1409 | uncompressedBytes(s) |
1410 | Compress::Raw::Zlib::inflateStream s |
1411 | CODE: |
1412 | RETVAL = s->uncompressedBytes; |
1413 | OUTPUT: |
1414 | RETVAL |
1415 | |
1416 | |
1417 | DualType |
1418 | inflateSync (s, buf) |
1419 | Compress::Raw::Zlib::inflateStream s |
1420 | SV * buf |
1421 | CODE: |
1422 | |
1423 | /* If the buffer is a reference, dereference it */ |
1424 | buf = deRef(buf, "inflateSync") ; |
1425 | #ifdef UTF8_AVAILABLE |
1426 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1427 | croak("Wide character in Compress::Raw::Zlib::Inflate::inflateSync"); |
1428 | #endif |
1429 | |
1430 | /* initialise the input buffer */ |
1431 | s->stream.next_in = (Bytef*)SvPVbyte_nolen(buf) ; |
1432 | s->stream.avail_in = SvCUR(buf) ; |
1433 | |
1434 | /* inflateSync doesn't create any output */ |
1435 | s->stream.next_out = (Bytef*) NULL; |
1436 | s->stream.avail_out = 0; |
1437 | |
1438 | RETVAL = inflateSync(&(s->stream)); |
1439 | s->last_error = RETVAL ; |
1440 | |
1441 | /* fix the input buffer */ |
1442 | { |
1443 | unsigned in = s->stream.avail_in ; |
1444 | SvCUR_set(buf, in) ; |
1445 | if (in) |
1446 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
1447 | *SvEND(buf) = '\0'; |
1448 | SvSETMAGIC(buf); |
1449 | } |
1450 | OUTPUT: |
1451 | RETVAL |
25f0751f |
1452 | |
1453 | void |
1454 | DESTROY(s) |
1455 | Compress::Raw::Zlib::inflateStream s |
1456 | CODE: |
1457 | inflateEnd(&s->stream) ; |
1458 | if (s->dictionary) |
1459 | SvREFCNT_dec(s->dictionary) ; |
1460 | #ifndef SETP_BYTE |
1461 | if (s->deflateParams_out_buffer) |
1462 | Safefree(s->deflateParams_out_buffer); |
1463 | #endif |
1464 | #ifdef MAGIC_APPEND |
1465 | if (s->window) |
1466 | Safefree(s->window); |
1467 | #endif |
1468 | Safefree(s) ; |
1469 | |
1470 | |
1471 | uLong |
1472 | status(s) |
1473 | Compress::Raw::Zlib::inflateStream s |
1474 | CODE: |
1475 | RETVAL = s->last_error ; |
1476 | OUTPUT: |
1477 | RETVAL |
1478 | |
1479 | uLong |
1480 | crc32(s) |
1481 | Compress::Raw::Zlib::inflateStream s |
1482 | CODE: |
1483 | RETVAL = s->crc32 ; |
1484 | OUTPUT: |
1485 | RETVAL |
1486 | |
1487 | uLong |
1488 | dict_adler(s) |
1489 | Compress::Raw::Zlib::inflateStream s |
1490 | CODE: |
1491 | RETVAL = s->dict_adler ; |
1492 | OUTPUT: |
1493 | RETVAL |
1494 | |
1495 | uLong |
1496 | total_in(s) |
1497 | Compress::Raw::Zlib::inflateStream s |
1498 | CODE: |
1499 | RETVAL = s->stream.total_in ; |
1500 | OUTPUT: |
1501 | RETVAL |
1502 | |
1503 | uLong |
1504 | adler32(s) |
1505 | Compress::Raw::Zlib::inflateStream s |
1506 | CODE: |
1507 | RETVAL = s->adler32 ; |
1508 | OUTPUT: |
1509 | RETVAL |
1510 | |
1511 | uLong |
1512 | total_out(s) |
1513 | Compress::Raw::Zlib::inflateStream s |
1514 | CODE: |
1515 | RETVAL = s->stream.total_out ; |
1516 | OUTPUT: |
1517 | RETVAL |
1518 | |
1519 | char* |
1520 | msg(s) |
1521 | Compress::Raw::Zlib::inflateStream s |
1522 | CODE: |
1523 | RETVAL = s->stream.msg; |
1524 | OUTPUT: |
1525 | RETVAL |
1526 | |
1527 | |
1528 | uLong |
1529 | get_Bufsize(s) |
1530 | Compress::Raw::Zlib::inflateStream s |
1531 | CODE: |
1532 | RETVAL = s->bufsize ; |
1533 | OUTPUT: |
1534 | RETVAL |
1535 | |
1536 | bool |
1537 | set_Append(s, mode) |
1538 | Compress::Raw::Zlib::inflateStream s |
1539 | bool mode |
1540 | CODE: |
1541 | RETVAL = ((s->flags & FLAG_APPEND) == FLAG_APPEND); |
1542 | if (mode) |
1543 | s->flags |= FLAG_APPEND ; |
1544 | else |
1545 | s->flags &= ~FLAG_APPEND ; |
1546 | OUTPUT: |
1547 | RETVAL |
1548 | |
1549 | MODULE = Compress::Raw::Zlib PACKAGE = Compress::Raw::Zlib::inflateScanStream |
1550 | |
1551 | void |
1552 | DESTROY(s) |
1553 | Compress::Raw::Zlib::inflateScanStream s |
1554 | CODE: |
1555 | inflateEnd(&s->stream) ; |
1556 | if (s->dictionary) |
1557 | SvREFCNT_dec(s->dictionary) ; |
1558 | #ifndef SETP_BYTE |
1559 | if (s->deflateParams_out_buffer) |
1560 | Safefree(s->deflateParams_out_buffer); |
1561 | #endif |
1562 | #ifdef MAGIC_APPEND |
1563 | if (s->window) |
1564 | Safefree(s->window); |
1565 | #endif |
1566 | Safefree(s) ; |
1567 | |
1568 | void |
1569 | DispStream(s, message=NULL) |
1570 | Compress::Raw::Zlib::inflateScanStream s |
1571 | char * message |
1572 | |
1573 | DualType |
1574 | inflateReset(s) |
1575 | Compress::Raw::Zlib::inflateScanStream s |
1576 | CODE: |
1577 | RETVAL = inflateReset(&(s->stream)) ; |
1578 | if (RETVAL == Z_OK) { |
1579 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; |
1580 | } |
1581 | OUTPUT: |
1582 | RETVAL |
1583 | |
1584 | DualType |
1585 | scan(s, buf, out=NULL, eof=FALSE) |
1586 | Compress::Raw::Zlib::inflateScanStream s |
1587 | SV * buf |
1588 | SV * out |
1589 | bool eof |
1590 | bool eof_mode = FALSE; |
1591 | int start_len = NO_INIT |
1592 | STRLEN stmp = NO_INIT |
1593 | CODE: |
1594 | /* If the input buffer is a reference, dereference it */ |
1595 | #ifndef MAGIC_APPEND |
1596 | buf = buf; |
1597 | croak("scan needs zlib 1.2.1 or better"); |
1598 | #else |
1599 | buf = deRef(buf, "inflateScan") ; |
1600 | #ifdef UTF8_AVAILABLE |
1601 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1602 | croak("Wide character in Compress::Raw::Zlib::InflateScan::scan input parameter"); |
1603 | #endif |
1604 | /* initialise the input buffer */ |
1605 | s->stream.next_in = (Bytef*)SvPVbyte_force(buf, stmp) ; |
1606 | s->stream.avail_in = SvCUR(buf) ; |
1607 | start_len = s->stream.avail_in ; |
1608 | s->bytesInflated = 0 ; |
1609 | do |
1610 | { |
1611 | if (s->stream.avail_in == 0) { |
1612 | RETVAL = Z_OK ; |
1613 | break ; |
1614 | } |
1615 | |
1616 | /* set up output to next available section of sliding window */ |
1617 | s->stream.avail_out = WINDOW_SIZE - s->window_have; |
1618 | s->stream.next_out = s->window + s->window_have; |
1619 | |
1620 | /* DispStream(s, "before inflate\n"); */ |
1621 | |
1622 | /* inflate and check for errors */ |
1623 | RETVAL = inflate(&(s->stream), Z_BLOCK); |
1624 | |
1625 | if (start_len > 1 && ! eof_mode) |
1626 | s->window_lastByte = *(s->stream.next_in - 1 ) ; |
1627 | |
1628 | if (RETVAL == Z_STREAM_ERROR || RETVAL == Z_MEM_ERROR || |
1629 | RETVAL == Z_DATA_ERROR ) |
1630 | break ; |
1631 | |
1632 | if (s->flags & FLAG_CRC32 ) |
1633 | s->crc32 = crc32(s->crc32, s->window + s->window_have, |
1634 | WINDOW_SIZE - s->window_have - s->stream.avail_out); |
1635 | |
1636 | if (s->flags & FLAG_ADLER32) |
1637 | s->adler32 = adler32(s->adler32, s->window + s->window_have, |
1638 | WINDOW_SIZE - s->window_have - s->stream.avail_out); |
1639 | |
1640 | s->uncompressedBytes = |
1641 | s->bytesInflated += WINDOW_SIZE - s->window_have - s->stream.avail_out; |
1642 | |
1643 | if (s->stream.avail_out) |
1644 | s->window_have = WINDOW_SIZE - s->stream.avail_out; |
1645 | else { |
1646 | s->window_have = 0; |
1647 | s->window_full = 1; |
1648 | } |
1649 | |
1650 | /* process end of block */ |
1651 | if (s->stream.data_type & 128) { |
1652 | if (s->stream.data_type & 64) { |
1653 | s->window_left = s->stream.data_type & 0x1f; |
1654 | } |
1655 | else { |
1656 | s->window_lastbit = s->stream.data_type & 0x1f; |
1657 | s->lastBlockOffset = s->stream.total_in; |
1658 | } |
1659 | } |
1660 | |
1661 | } while (RETVAL != Z_STREAM_END); |
1662 | |
1663 | s->last_error = RETVAL ; |
1664 | s->window_lastoff = s->stream.total_in ; |
1665 | s->compressedBytes += SvCUR(buf) - s->stream.avail_in ; |
1666 | |
1667 | if (RETVAL == Z_STREAM_END) |
1668 | { |
1669 | s->matchedEndBlock = 1 ; |
1670 | |
1671 | /* save the location of the end of the compressed data */ |
1672 | s->window_end = SvCUR(buf) - s->stream.avail_in - 1 ; |
1673 | s->window_endOffset = s->stream.total_in ; |
1674 | if (s->window_left) |
1675 | { |
1676 | -- s->window_endOffset ; |
1677 | } |
1678 | |
1679 | /* if window wrapped, build dictionary from window by rotating */ |
1680 | if (s->window_full) { |
1681 | rotate(s->window, WINDOW_SIZE, s->window_have); |
1682 | s->window_have = WINDOW_SIZE; |
1683 | } |
1684 | |
1685 | /* if (s->flags & FLAG_CONSUME_INPUT) { */ |
1686 | if (1) { |
1687 | unsigned in = s->stream.avail_in ; |
1688 | SvCUR_set(buf, in) ; |
1689 | if (in) |
1690 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
1691 | *SvEND(buf) = '\0'; |
1692 | SvSETMAGIC(buf); |
1693 | } |
1694 | } |
1695 | #endif |
1696 | OUTPUT: |
1697 | RETVAL |
1698 | |
1699 | |
1700 | uLong |
1701 | getEndOffset(s) |
1702 | Compress::Raw::Zlib::inflateScanStream s |
1703 | CODE: |
1704 | #ifndef MAGIC_APPEND |
1705 | croak("getEndOffset needs zlib 1.2.1 or better"); |
1706 | #else |
1707 | RETVAL = s->window_endOffset; |
1708 | #endif |
1709 | OUTPUT: |
1710 | RETVAL |
1711 | |
1712 | uLong |
1713 | inflateCount(s) |
1714 | Compress::Raw::Zlib::inflateScanStream s |
1715 | CODE: |
1716 | #ifndef MAGIC_APPEND |
1717 | croak("inflateCount needs zlib 1.2.1 or better"); |
1718 | #else |
1719 | RETVAL = s->bytesInflated; |
1720 | #endif |
1721 | OUTPUT: |
1722 | RETVAL |
1723 | |
1724 | uLong |
1725 | compressedBytes(s) |
1726 | Compress::Raw::Zlib::inflateScanStream s |
1727 | CODE: |
1728 | RETVAL = s->compressedBytes; |
1729 | OUTPUT: |
1730 | RETVAL |
1731 | |
1732 | uLong |
1733 | uncompressedBytes(s) |
1734 | Compress::Raw::Zlib::inflateScanStream s |
1735 | CODE: |
1736 | RETVAL = s->uncompressedBytes; |
1737 | OUTPUT: |
1738 | RETVAL |
1739 | |
1740 | |
1741 | uLong |
1742 | getLastBlockOffset(s) |
1743 | Compress::Raw::Zlib::inflateScanStream s |
1744 | CODE: |
1745 | #ifndef MAGIC_APPEND |
1746 | croak("getLastBlockOffset needs zlib 1.2.1 or better"); |
1747 | #else |
1748 | RETVAL = s->lastBlockOffset - (s->window_lastbit != 0); |
1749 | #endif |
1750 | OUTPUT: |
1751 | RETVAL |
1752 | |
1753 | uLong |
1754 | getLastBufferOffset(s) |
1755 | Compress::Raw::Zlib::inflateScanStream s |
1756 | CODE: |
1757 | #ifndef MAGIC_APPEND |
1758 | croak("getLastBufferOffset needs zlib 1.2.1 or better"); |
1759 | #else |
1760 | RETVAL = s->window_lastoff; |
1761 | #endif |
1762 | OUTPUT: |
1763 | RETVAL |
1764 | |
1765 | void |
1766 | resetLastBlockByte(s, byte) |
1767 | Compress::Raw::Zlib::inflateScanStream s |
1768 | unsigned char* byte |
1769 | CODE: |
1770 | #ifndef MAGIC_APPEND |
1771 | croak("resetLastBlockByte needs zlib 1.2.1 or better"); |
1772 | #else |
cb7abd7f |
1773 | if (byte != NULL) |
1774 | *byte = *byte ^ (1 << ((8 - s->window_lastbit) & 7)); |
25f0751f |
1775 | #endif |
1776 | |
1777 | |
1778 | void |
1779 | _createDeflateStream(inf_s, flags,level, method, windowBits, memLevel, strategy, bufsize) |
1780 | Compress::Raw::Zlib::inflateScanStream inf_s |
1781 | int flags |
1782 | int level |
1783 | int method |
1784 | int windowBits |
1785 | int memLevel |
1786 | int strategy |
1787 | uLong bufsize |
1788 | PPCODE: |
1789 | { |
1790 | #ifndef MAGIC_APPEND |
1791 | flags = flags; |
1792 | level = level ; |
1793 | method = method; |
1794 | windowBits = windowBits; |
1795 | memLevel = memLevel; |
1796 | strategy = strategy; |
1797 | bufsize= bufsize; |
1798 | croak("_createDeflateStream needs zlib 1.2.1 or better"); |
1799 | #else |
1800 | int err ; |
1801 | deflateStream s ; |
1802 | |
1803 | if (trace) |
1804 | warn("in _createDeflateStream(level=%d, method=%d, windowBits=%d, memLevel=%d, strategy=%d, bufsize=%lu\n", |
1805 | level, method, windowBits, memLevel, strategy, bufsize) ; |
1806 | if ((s = InitStream() )) { |
1807 | |
1808 | s->Level = level; |
1809 | s->Method = method; |
1810 | s->WindowBits = windowBits; |
1811 | s->MemLevel = memLevel; |
1812 | s->Strategy = strategy; |
1813 | |
1814 | err = deflateInit2(&(s->stream), level, |
1815 | method, windowBits, memLevel, strategy); |
1816 | |
1817 | if (err == Z_OK) { |
1818 | err = deflateSetDictionary(&(s->stream), inf_s->window, inf_s->window_have); |
1819 | s->dict_adler = s->stream.adler ; |
1820 | } |
1821 | |
1822 | if (err != Z_OK) { |
1823 | Safefree(s) ; |
1824 | s = NULL ; |
1825 | } |
1826 | else { |
1827 | PostInitStream(s, flags, bufsize, windowBits) ; |
1828 | s->crc32 = inf_s->crc32; |
1829 | s->adler32 = inf_s->adler32; |
1830 | s->stream.adler = inf_s->stream.adler ; |
1831 | /* s->stream.total_out = inf_s->bytesInflated ; */ |
1832 | s->stream.total_in = inf_s->stream.total_out ; |
1833 | if (inf_s->window_left) { |
1834 | /* printf("** window_left %d, window_lastByte %d\n", inf_s->window_left, inf_s->window_lastByte); */ |
1835 | deflatePrime(&(s->stream), 8 - inf_s->window_left, inf_s->window_lastByte); |
1836 | } |
1837 | } |
1838 | } |
1839 | else |
1840 | err = Z_MEM_ERROR ; |
1841 | |
1842 | XPUSHs(sv_setref_pv(sv_newmortal(), |
1843 | "Compress::Raw::Zlib::deflateStream", (void*)s)); |
1844 | if (GIMME == G_ARRAY) { |
1845 | SV * sv = sv_2mortal(newSViv(err)) ; |
1846 | setDUALstatus(sv, err); |
1847 | XPUSHs(sv) ; |
1848 | } |
1849 | #endif |
1850 | } |
1851 | |
1852 | DualType |
1853 | status(s) |
1854 | Compress::Raw::Zlib::inflateScanStream s |
1855 | CODE: |
1856 | RETVAL = s->last_error ; |
1857 | OUTPUT: |
1858 | RETVAL |
1859 | |
1860 | uLong |
1861 | crc32(s) |
1862 | Compress::Raw::Zlib::inflateScanStream s |
1863 | CODE: |
1864 | RETVAL = s->crc32 ; |
1865 | OUTPUT: |
1866 | RETVAL |
1867 | |
1868 | |
1869 | uLong |
1870 | adler32(s) |
1871 | Compress::Raw::Zlib::inflateScanStream s |
1872 | CODE: |
1873 | RETVAL = s->adler32 ; |
1874 | OUTPUT: |
1875 | RETVAL |
1876 | |