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f4c6fd49 |
1 | /* Filename: Zlib.xs |
2 | * Author : Paul Marquess, <pmqs@cpan.org> |
642e522c |
3 | * Created : 22nd January 1996 |
4 | * Version : 2.000 |
f4c6fd49 |
5 | * |
6 | * Copyright (c) 1995-2005 Paul Marquess. All rights reserved. |
7 | * This program is free software; you can redistribute it and/or |
8 | * modify it under the same terms as Perl itself. |
9 | * |
10 | */ |
11 | |
642e522c |
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 | */ |
f4c6fd49 |
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 | |
642e522c |
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 | |
f4c6fd49 |
28 | |
29 | |
30 | #include "EXTERN.h" |
31 | #include "perl.h" |
32 | #include "XSUB.h" |
33 | |
34 | #include <zlib.h> |
35 | |
642e522c |
36 | |
37 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1210 |
38 | # define MAGIC_APPEND |
39 | #endif |
40 | |
41 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1221 |
42 | # define AT_LEAST_ZLIB_1_2_2_1 |
43 | #endif |
44 | |
45 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1223 |
46 | # define AT_LEAST_ZLIB_1_2_2_3 |
47 | #endif |
48 | |
49 | #if defined(ZLIB_VERNUM) && ZLIB_VERNUM >= 0x1230 |
50 | # define AT_LEAST_ZLIB_1_2_3 |
51 | #endif |
52 | |
53 | #if 0 |
54 | |
55 | # include "ppport.h" |
56 | |
57 | #else |
58 | |
59 | /* zlib prior to 1.06 doesn't know about z_off_t */ |
60 | #ifndef z_off_t |
61 | # define z_off_t long |
62 | #endif |
63 | |
64 | # ifndef PERL_VERSION |
65 | # include "patchlevel.h" |
66 | # define PERL_REVISION 5 |
67 | # define PERL_VERSION PATCHLEVEL |
68 | # define PERL_SUBVERSION SUBVERSION |
69 | # endif |
70 | |
71 | # if PERL_REVISION == 5 && (PERL_VERSION < 4 || (PERL_VERSION == 4 && PERL_SUBVERSION <= 75 )) |
72 | |
73 | # define PL_sv_undef sv_undef |
74 | # define PL_na na |
75 | # define PL_curcop curcop |
76 | # define PL_compiling compiling |
77 | |
78 | # endif |
79 | |
80 | # ifndef newSVuv |
81 | # define newSVuv newSViv |
82 | # endif |
83 | |
84 | #endif |
85 | |
86 | |
87 | #if PERL_REVISION == 5 && (PERL_VERSION >= 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) |
88 | # define UTF8_AVAILABLE |
89 | #endif |
90 | |
91 | #if PERL_REVISION == 5 && (PERL_VERSION < 8 || (PERL_VERSION == 8 && PERL_SUBVERSION < 4 )) |
92 | |
93 | # ifdef SvPVbyte_force |
94 | # undef SvPVbyte_force |
95 | # endif |
96 | |
97 | # define SvPVbyte_force(sv,lp) SvPV_force(sv,lp) |
98 | |
f4c6fd49 |
99 | #endif |
100 | |
642e522c |
101 | #ifndef SvPVbyte_nolen |
102 | # define SvPVbyte_nolen SvPV_nolen |
103 | #endif |
104 | |
105 | #ifndef SvPVbyte |
106 | # define SvPVbyte SvPV |
107 | #endif |
108 | |
109 | #ifndef dTHX |
110 | # define dTHX |
111 | #endif |
112 | |
113 | #ifndef SvPV_nolen |
114 | |
115 | #define sv_2pv_nolen(a) my_sv_2pv_nolen(a) |
116 | |
117 | static char * |
118 | my_sv_2pv_nolen(register SV *sv) |
119 | { |
120 | STRLEN n_a; |
121 | return sv_2pv(sv, &n_a); |
122 | } |
123 | |
124 | |
125 | /* SvPV_nolen depends on sv_2pv_nolen */ |
126 | #define SvPV_nolen(sv) \ |
127 | ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \ |
128 | ? SvPVX(sv) : sv_2pv_nolen(sv)) |
f4c6fd49 |
129 | |
f4c6fd49 |
130 | |
131 | #endif |
132 | |
642e522c |
133 | #ifndef SvGETMAGIC |
134 | # define SvGETMAGIC(x) STMT_START { if (SvGMAGICAL(x)) mg_get(x); } STMT_END |
f4c6fd49 |
135 | #endif |
136 | |
642e522c |
137 | typedef int DualType ; |
138 | typedef int int_undef ; |
139 | |
f4c6fd49 |
140 | typedef struct di_stream { |
642e522c |
141 | int flags ; |
142 | #define FLAG_APPEND 1 |
143 | #define FLAG_CRC32 2 |
144 | #define FLAG_ADLER32 4 |
145 | #define FLAG_CONSUME_INPUT 8 |
146 | uLong crc32 ; |
147 | uLong adler32 ; |
f4c6fd49 |
148 | z_stream stream; |
642e522c |
149 | uLong bufsize; |
150 | uLong bufinc; |
f4c6fd49 |
151 | SV * dictionary ; |
152 | uLong dict_adler ; |
642e522c |
153 | int last_error ; |
154 | bool zip_mode ; |
155 | #define SETP_BYTE |
156 | #ifdef SETP_BYTE |
f4c6fd49 |
157 | bool deflateParams_out_valid ; |
158 | Bytef deflateParams_out_byte; |
642e522c |
159 | #else |
160 | #define deflateParams_BUFFER_SIZE 0x4000 |
161 | uLong deflateParams_out_length; |
162 | Bytef* deflateParams_out_buffer; |
163 | #endif |
f4c6fd49 |
164 | int Level; |
165 | int Method; |
166 | int WindowBits; |
167 | int MemLevel; |
168 | int Strategy; |
642e522c |
169 | uLong bytesInflated ; |
170 | #ifdef MAGIC_APPEND |
171 | |
172 | #define WINDOW_SIZE 32768U |
173 | |
174 | bool matchedEndBlock; |
175 | Bytef* window ; |
176 | int window_lastbit, window_left, window_full; |
177 | unsigned window_have; |
178 | off_t window_lastoff, window_end; |
179 | off_t window_endOffset; |
180 | |
181 | uLong lastBlockOffset ; |
182 | unsigned char window_lastByte ; |
183 | |
184 | |
185 | #endif |
f4c6fd49 |
186 | } di_stream; |
187 | |
188 | typedef di_stream * deflateStream ; |
189 | typedef di_stream * Compress__Zlib__deflateStream ; |
190 | typedef di_stream * inflateStream ; |
191 | typedef di_stream * Compress__Zlib__inflateStream ; |
642e522c |
192 | typedef di_stream * Compress__Zlib__inflateScanStream ; |
193 | |
194 | #define GZERRNO "Compress::Zlib::gzerrno" |
f4c6fd49 |
195 | |
642e522c |
196 | #define ZMALLOC(to, typ) ((to = (typ *)safemalloc(sizeof(typ))), \ |
197 | Zero(to,1,typ)) |
198 | |
199 | /* Figure out the Operating System */ |
200 | #ifdef MSDOS |
201 | # define OS_CODE 0x00 |
202 | #endif |
f4c6fd49 |
203 | |
642e522c |
204 | #if defined(AMIGA) || defined(AMIGAOS) |
205 | # define OS_CODE 0x01 |
206 | #endif |
207 | |
208 | #if defined(VAXC) || defined(VMS) |
209 | # define OS_CODE 0x02 |
210 | #endif |
f4c6fd49 |
211 | |
642e522c |
212 | #if 0 /* VM/CMS */ |
213 | # define OS_CODE 0x04 |
214 | #endif |
215 | |
216 | #if defined(ATARI) || defined(atarist) |
217 | # define OS_CODE 0x05 |
218 | #endif |
219 | |
220 | #ifdef OS2 |
221 | # define OS_CODE 0x06 |
222 | #endif |
223 | |
224 | #if defined(MACOS) || defined(TARGET_OS_MAC) |
225 | # define OS_CODE 0x07 |
226 | #endif |
f4c6fd49 |
227 | |
642e522c |
228 | #if 0 /* Z-System */ |
229 | # define OS_CODE 0x08 |
230 | #endif |
231 | |
232 | #if 0 /* CP/M */ |
233 | # define OS_CODE 0x09 |
234 | #endif |
235 | |
236 | #ifdef TOPS20 |
237 | # define OS_CODE 0x0a |
238 | #endif |
f4c6fd49 |
239 | |
642e522c |
240 | #ifdef WIN32 /* Window 95 & Windows NT */ |
241 | # define OS_CODE 0x0b |
242 | #endif |
243 | |
244 | #if 0 /* QDOS */ |
245 | # define OS_CODE 0x0c |
246 | #endif |
247 | |
248 | #if 0 /* Acorn RISCOS */ |
249 | # define OS_CODE 0x0d |
250 | #endif |
251 | |
252 | #if 0 /* ??? */ |
253 | # define OS_CODE 0x0e |
254 | #endif |
255 | |
256 | #ifdef __50SERIES /* Prime/PRIMOS */ |
257 | # define OS_CODE 0x0F |
258 | #endif |
259 | |
260 | /* Default to UNIX */ |
261 | #ifndef OS_CODE |
262 | # define OS_CODE 0x03 /* assume Unix */ |
263 | #endif |
f4c6fd49 |
264 | |
642e522c |
265 | #ifndef GZIP_OS_CODE |
266 | # define GZIP_OS_CODE OS_CODE |
267 | #endif |
f4c6fd49 |
268 | |
269 | #define adlerInitial adler32(0L, Z_NULL, 0) |
270 | #define crcInitial crc32(0L, Z_NULL, 0) |
271 | |
642e522c |
272 | |
c042ae3a |
273 | static const char * const my_z_errmsg[] = { |
f4c6fd49 |
274 | "need dictionary", /* Z_NEED_DICT 2 */ |
275 | "stream end", /* Z_STREAM_END 1 */ |
276 | "", /* Z_OK 0 */ |
277 | "file error", /* Z_ERRNO (-1) */ |
278 | "stream error", /* Z_STREAM_ERROR (-2) */ |
279 | "data error", /* Z_DATA_ERROR (-3) */ |
280 | "insufficient memory", /* Z_MEM_ERROR (-4) */ |
281 | "buffer error", /* Z_BUF_ERROR (-5) */ |
282 | "incompatible version",/* Z_VERSION_ERROR(-6) */ |
283 | ""}; |
f4c6fd49 |
284 | |
642e522c |
285 | #define setDUALstatus(var, err) \ |
286 | sv_setnv(var, (double)err) ; \ |
287 | sv_setpv(var, ((err) ? GetErrorString(err) : "")) ; \ |
288 | SvNOK_on(var); |
289 | |
290 | |
c042ae3a |
291 | #if defined(__SYMBIAN32__) |
292 | # define NO_WRITEABLE_DATA |
293 | #endif |
294 | |
295 | #define TRACE_DEFAULT 0 |
296 | |
297 | #ifdef NO_WRITEABLE_DATA |
642e522c |
298 | # define trace TRACE_DEFAULT |
c042ae3a |
299 | #else |
642e522c |
300 | static int trace = TRACE_DEFAULT ; |
c042ae3a |
301 | #endif |
f4c6fd49 |
302 | |
c042ae3a |
303 | /* Dodge PerlIO hiding of these functions. */ |
304 | #undef printf |
f4c6fd49 |
305 | |
642e522c |
306 | static char * |
307 | #ifdef CAN_PROTOTYPE |
308 | GetErrorString(int error_no) |
309 | #else |
310 | GetErrorString(error_no) |
311 | int error_no ; |
312 | #endif |
313 | { |
314 | dTHX; |
315 | char * errstr ; |
316 | |
317 | if (error_no == Z_ERRNO) { |
318 | errstr = Strerror(errno) ; |
319 | } |
320 | else |
321 | /* errstr = gzerror(fil, &error_no) ; */ |
322 | errstr = (char*) my_z_errmsg[2 - error_no]; |
323 | |
324 | return errstr ; |
325 | } |
326 | |
327 | #if 0 |
f4c6fd49 |
328 | static void |
329 | #ifdef CAN_PROTOTYPE |
330 | SetGzErrorNo(int error_no) |
331 | #else |
332 | SetGzErrorNo(error_no) |
333 | int error_no ; |
334 | #endif |
335 | { |
336 | char * errstr ; |
337 | SV * gzerror_sv = perl_get_sv(GZERRNO, FALSE) ; |
338 | |
339 | if (error_no == Z_ERRNO) { |
340 | error_no = errno ; |
341 | errstr = Strerror(errno) ; |
342 | } |
343 | else |
344 | /* errstr = gzerror(fil, &error_no) ; */ |
345 | errstr = (char*) my_z_errmsg[2 - error_no]; |
346 | |
347 | if (SvIV(gzerror_sv) != error_no) { |
348 | sv_setiv(gzerror_sv, error_no) ; |
349 | sv_setpv(gzerror_sv, errstr) ; |
350 | SvIOK_on(gzerror_sv) ; |
351 | } |
352 | |
353 | } |
354 | |
642e522c |
355 | |
f4c6fd49 |
356 | static void |
357 | #ifdef CAN_PROTOTYPE |
358 | SetGzError(gzFile file) |
359 | #else |
360 | SetGzError(file) |
361 | gzFile file ; |
362 | #endif |
363 | { |
364 | int error_no ; |
365 | |
366 | (void)gzerror(file, &error_no) ; |
367 | SetGzErrorNo(error_no) ; |
368 | } |
369 | |
642e522c |
370 | #endif |
371 | |
372 | #ifdef MAGIC_APPEND |
373 | |
374 | /* |
375 | The following two functions are taken almost directly from |
376 | examples/gzappend.c. Only cosmetic changes have been made to conform to |
377 | the coding style of the rest of the code in this file. |
378 | */ |
379 | |
380 | |
381 | /* return the greatest common divisor of a and b using Euclid's algorithm, |
382 | modified to be fast when one argument much greater than the other, and |
383 | coded to avoid unnecessary swapping */ |
384 | static unsigned |
385 | #ifdef CAN_PROTOTYPE |
386 | gcd(unsigned a, unsigned b) |
387 | #else |
388 | gcd(a, b) |
389 | unsigned a; |
390 | unsigned b; |
391 | #endif |
392 | { |
393 | unsigned c; |
394 | |
395 | while (a && b) |
396 | if (a > b) { |
397 | c = b; |
398 | while (a - c >= c) |
399 | c <<= 1; |
400 | a -= c; |
401 | } |
402 | else { |
403 | c = a; |
404 | while (b - c >= c) |
405 | c <<= 1; |
406 | b -= c; |
407 | } |
408 | return a + b; |
409 | } |
410 | |
411 | /* rotate list[0..len-1] left by rot positions, in place */ |
412 | static void |
413 | #ifdef CAN_PROTOTYPE |
414 | rotate(unsigned char *list, unsigned len, unsigned rot) |
415 | #else |
416 | rotate(list, len, rot) |
417 | unsigned char *list; |
418 | unsigned len ; |
419 | unsigned rot; |
420 | #endif |
421 | { |
422 | unsigned char tmp; |
423 | unsigned cycles; |
424 | unsigned char *start, *last, *to, *from; |
425 | |
426 | /* normalize rot and handle degenerate cases */ |
427 | if (len < 2) return; |
428 | if (rot >= len) rot %= len; |
429 | if (rot == 0) return; |
430 | |
431 | /* pointer to last entry in list */ |
432 | last = list + (len - 1); |
433 | |
434 | /* do simple left shift by one */ |
435 | if (rot == 1) { |
436 | tmp = *list; |
437 | memcpy(list, list + 1, len - 1); |
438 | *last = tmp; |
439 | return; |
440 | } |
441 | |
442 | /* do simple right shift by one */ |
443 | if (rot == len - 1) { |
444 | tmp = *last; |
445 | memmove(list + 1, list, len - 1); |
446 | *list = tmp; |
447 | return; |
448 | } |
449 | |
450 | /* otherwise do rotate as a set of cycles in place */ |
451 | cycles = gcd(len, rot); /* number of cycles */ |
452 | do { |
453 | start = from = list + cycles; /* start index is arbitrary */ |
454 | tmp = *from; /* save entry to be overwritten */ |
455 | for (;;) { |
456 | to = from; /* next step in cycle */ |
457 | from += rot; /* go right rot positions */ |
458 | if (from > last) from -= len; /* (pointer better not wrap) */ |
459 | if (from == start) break; /* all but one shifted */ |
460 | *to = *from; /* shift left */ |
461 | } |
462 | *to = tmp; /* complete the circle */ |
463 | } while (--cycles); |
464 | } |
465 | |
466 | #endif /* MAGIC_APPEND */ |
467 | |
f4c6fd49 |
468 | static void |
469 | #ifdef CAN_PROTOTYPE |
470 | DispHex(void * ptr, int length) |
471 | #else |
472 | DispHex(ptr, length) |
473 | void * ptr; |
474 | int length; |
475 | #endif |
476 | { |
477 | char * p = (char*)ptr; |
478 | int i; |
479 | for (i = 0; i < length; ++i) { |
480 | printf(" %02x", 0xFF & *(p+i)); |
481 | } |
482 | } |
483 | |
484 | |
485 | static void |
486 | #ifdef CAN_PROTOTYPE |
487 | DispStream(di_stream * s, char * message) |
488 | #else |
489 | DispStream(s, message) |
490 | di_stream * s; |
491 | char * message; |
492 | #endif |
493 | { |
494 | |
495 | #if 0 |
496 | if (! trace) |
497 | return ; |
498 | #endif |
499 | |
642e522c |
500 | #define EnDis(f) (s->flags & f ? "Enabled" : "Disabled") |
501 | |
502 | printf("DispStream 0x%p", s) ; |
503 | if (message) |
504 | printf("- %s \n", message) ; |
505 | printf("\n") ; |
f4c6fd49 |
506 | |
507 | if (!s) { |
642e522c |
508 | printf(" stream pointer is NULL\n"); |
f4c6fd49 |
509 | } |
510 | else { |
642e522c |
511 | printf(" stream 0x%p\n", &(s->stream)); |
512 | printf(" zalloc 0x%p\n", s->stream.zalloc); |
513 | printf(" zfree 0x%p\n", s->stream.zfree); |
514 | printf(" opaque 0x%p\n", s->stream.opaque); |
515 | if (s->stream.msg) |
516 | printf(" msg %s\n", s->stream.msg); |
517 | else |
518 | printf(" msg \n"); |
519 | printf(" next_in 0x%p", s->stream.next_in); |
520 | if (s->stream.next_in){ |
521 | printf(" =>"); |
f4c6fd49 |
522 | DispHex(s->stream.next_in, 4); |
642e522c |
523 | } |
f4c6fd49 |
524 | printf("\n"); |
525 | |
642e522c |
526 | printf(" next_out 0x%p", s->stream.next_out); |
527 | if (s->stream.next_out){ |
528 | printf(" =>"); |
f4c6fd49 |
529 | DispHex(s->stream.next_out, 4); |
642e522c |
530 | } |
f4c6fd49 |
531 | printf("\n"); |
532 | |
642e522c |
533 | printf(" avail_in %lu\n", (unsigned long)s->stream.avail_in); |
534 | printf(" avail_out %lu\n", (unsigned long)s->stream.avail_out); |
535 | printf(" total_in %ld\n", s->stream.total_in); |
536 | printf(" total_out %ld\n", s->stream.total_out); |
537 | printf(" adler %ld\n", s->stream.adler ); |
538 | printf(" bufsize %ld\n", s->bufsize); |
539 | printf(" dictionary 0x%p\n", s->dictionary); |
540 | printf(" dict_adler 0x%ld\n",s->dict_adler); |
541 | printf(" zip_mode %d\n", s->zip_mode); |
542 | printf(" crc32 0x%x\n", (unsigned)s->crc32); |
543 | printf(" adler32 0x%x\n", (unsigned)s->adler32); |
544 | printf(" flags 0x%x\n", s->flags); |
545 | printf(" APPEND %s\n", EnDis(FLAG_APPEND)); |
546 | printf(" CRC32 %s\n", EnDis(FLAG_CRC32)); |
547 | printf(" ADLER32 %s\n", EnDis(FLAG_ADLER32)); |
548 | printf(" CONSUME %s\n", EnDis(FLAG_CONSUME_INPUT)); |
549 | |
550 | #ifdef MAGIC_APPEND |
551 | printf(" window 0x%p\n", s->window); |
552 | #endif |
553 | printf("\n"); |
f4c6fd49 |
554 | |
555 | } |
556 | } |
557 | |
f4c6fd49 |
558 | static di_stream * |
559 | #ifdef CAN_PROTOTYPE |
642e522c |
560 | InitStream(void) |
f4c6fd49 |
561 | #else |
642e522c |
562 | InitStream() |
f4c6fd49 |
563 | #endif |
564 | { |
565 | di_stream *s ; |
566 | |
567 | ZMALLOC(s, di_stream) ; |
568 | |
f4c6fd49 |
569 | return s ; |
570 | |
571 | } |
572 | |
642e522c |
573 | static void |
f4c6fd49 |
574 | #ifdef CAN_PROTOTYPE |
642e522c |
575 | PostInitStream(di_stream * s, int flags, int bufsize, int windowBits) |
f4c6fd49 |
576 | #else |
642e522c |
577 | PostInitStream(s, flags, bufsize, windowBits) |
578 | di_stream *s ; |
579 | int flags ; |
580 | int bufsize ; |
581 | int windowBits ; |
f4c6fd49 |
582 | #endif |
583 | { |
642e522c |
584 | s->bufsize = bufsize ; |
585 | s->bufinc = bufsize ; |
586 | s->last_error = 0 ; |
587 | s->flags = flags ; |
588 | s->zip_mode = (windowBits < 0) ; |
589 | if (flags & FLAG_CRC32) |
590 | s->crc32 = crcInitial ; |
591 | if (flags & FLAG_ADLER32) |
592 | s->adler32 = adlerInitial ; |
f4c6fd49 |
593 | } |
594 | |
642e522c |
595 | |
f4c6fd49 |
596 | static SV* |
597 | #ifdef CAN_PROTOTYPE |
598 | deRef(SV * sv, char * string) |
599 | #else |
600 | deRef(sv, string) |
601 | SV * sv ; |
602 | char * string; |
603 | #endif |
604 | { |
c042ae3a |
605 | dTHX; |
642e522c |
606 | SvGETMAGIC(sv); |
607 | |
f4c6fd49 |
608 | if (SvROK(sv)) { |
642e522c |
609 | sv = SvRV(sv) ; |
610 | SvGETMAGIC(sv); |
611 | switch(SvTYPE(sv)) { |
f4c6fd49 |
612 | case SVt_PVAV: |
613 | case SVt_PVHV: |
614 | case SVt_PVCV: |
615 | croak("%s: buffer parameter is not a SCALAR reference", string); |
642e522c |
616 | } |
617 | if (SvROK(sv)) |
618 | croak("%s: buffer parameter is a reference to a reference", string) ; |
f4c6fd49 |
619 | } |
620 | |
621 | if (!SvOK(sv)) { |
622 | sv = newSVpv("", 0); |
642e522c |
623 | } |
624 | |
625 | return sv ; |
626 | } |
627 | |
628 | static SV* |
629 | #ifdef CAN_PROTOTYPE |
630 | deRef_l(SV * sv, char * string) |
631 | #else |
632 | deRef_l(sv, string) |
633 | SV * sv ; |
634 | char * string ; |
635 | #endif |
636 | { |
0added8b |
637 | dTHX; |
642e522c |
638 | bool wipe = 0 ; |
639 | |
640 | SvGETMAGIC(sv); |
641 | wipe = ! SvOK(sv) ; |
642 | |
643 | if (SvROK(sv)) { |
644 | sv = SvRV(sv) ; |
645 | SvGETMAGIC(sv); |
646 | wipe = ! SvOK(sv) ; |
647 | |
648 | switch(SvTYPE(sv)) { |
649 | case SVt_PVAV: |
650 | case SVt_PVHV: |
651 | case SVt_PVCV: |
652 | croak("%s: buffer parameter is not a SCALAR reference", string); |
653 | } |
654 | if (SvROK(sv)) |
655 | croak("%s: buffer parameter is a reference to a reference", string) ; |
656 | } |
657 | |
658 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) |
659 | croak("%s: buffer parameter is read-only", string); |
660 | |
661 | SvUPGRADE(sv, SVt_PV); |
662 | |
663 | if (wipe) |
664 | SvCUR_set(sv, 0); |
665 | |
666 | SvOOK_off(sv); |
667 | SvPOK_only(sv); |
668 | |
f4c6fd49 |
669 | return sv ; |
670 | } |
671 | |
642e522c |
672 | |
f4c6fd49 |
673 | #include "constants.h" |
674 | |
642e522c |
675 | MODULE = Compress::Zlib PACKAGE = Compress::Zlib PREFIX = Zip_ |
f4c6fd49 |
676 | |
677 | REQUIRE: 1.924 |
678 | PROTOTYPES: DISABLE |
679 | |
680 | INCLUDE: constants.xs |
681 | |
682 | BOOT: |
683 | /* Check this version of zlib is == 1 */ |
684 | if (zlibVersion()[0] != '1') |
685 | croak("Compress::Zlib needs zlib version 1.x\n") ; |
686 | |
687 | { |
642e522c |
688 | /* Create the $os_code scalar */ |
689 | SV * os_code_sv = perl_get_sv("Compress::Zlib::gzip_os_code", GV_ADDMULTI) ; |
690 | sv_setiv(os_code_sv, GZIP_OS_CODE) ; |
691 | } |
692 | |
693 | { |
f4c6fd49 |
694 | /* Create the $gzerror scalar */ |
695 | SV * gzerror_sv = perl_get_sv(GZERRNO, GV_ADDMULTI) ; |
696 | sv_setiv(gzerror_sv, 0) ; |
697 | sv_setpv(gzerror_sv, "") ; |
698 | SvIOK_on(gzerror_sv) ; |
699 | } |
700 | |
701 | |
642e522c |
702 | int |
703 | _readonly_ref(sv) |
704 | SV* sv |
705 | CODE: |
706 | if (SvROK(sv)) |
707 | RETVAL = SvREADONLY(SvRV(sv)) ; |
708 | else |
709 | RETVAL = SvREADONLY(sv) ; |
710 | OUTPUT: |
711 | RETVAL |
712 | |
713 | void |
714 | _dualvar(num,str) |
715 | SV * num |
716 | SV * str |
717 | PROTOTYPE: $$ |
718 | CODE: |
719 | { |
720 | STRLEN len; |
721 | char *ptr = SvPVbyte(str,len); |
722 | ST(0) = sv_newmortal(); |
723 | SvUPGRADE(ST(0),SVt_PVNV); |
724 | sv_setpvn(ST(0),ptr,len); |
725 | if(SvNOK(num) || SvPOK(num) || SvMAGICAL(num)) { |
5e701d2b |
726 | SvNV_set(ST(0), SvNV(num)); |
642e522c |
727 | SvNOK_on(ST(0)); |
728 | } |
729 | #ifdef SVf_IVisUVXXXX |
730 | else if (SvUOK(num)) { |
731 | SvUVX(ST(0)) = SvUV(num); |
732 | SvIOK_on(ST(0)); |
733 | SvIsUV_on(ST(0)); |
734 | } |
735 | #endif |
736 | else { |
5e701d2b |
737 | SvIV_set(ST(0), SvIV(num)); |
642e522c |
738 | SvIOK_on(ST(0)); |
739 | } |
740 | XSRETURN(1); |
741 | } |
742 | |
743 | |
f4c6fd49 |
744 | #define Zip_zlib_version() (char*)zlib_version |
745 | char* |
746 | Zip_zlib_version() |
747 | |
06edba15 |
748 | unsigned |
749 | ZLIB_VERNUM() |
750 | CODE: |
751 | #ifdef ZLIB_VERNUM |
752 | RETVAL = ZLIB_VERNUM ; |
753 | #else |
754 | /* 1.1.4 => 0x1140 */ |
755 | RETVAL = (ZLIB_VERSION[0] - '0') << 12 ; |
756 | RETVAL += (ZLIB_VERSION[2] - '0') << 8 ; |
757 | RETVAL += (ZLIB_VERSION[4] - '0') << 4 ; |
758 | #endif |
759 | OUTPUT: |
760 | RETVAL |
761 | |
642e522c |
762 | MODULE = Compress::Zlib PACKAGE = Compress::Zlib PREFIX = Zip_ |
f4c6fd49 |
763 | |
642e522c |
764 | #define Zip_adler32(buf, adler) adler32(adler, buf, (uInt)len) |
f4c6fd49 |
765 | |
642e522c |
766 | uLong |
767 | Zip_adler32(buf, adler=adlerInitial) |
768 | uLong adler = NO_INIT |
769 | STRLEN len = NO_INIT |
770 | Bytef * buf = NO_INIT |
771 | SV * sv = ST(0) ; |
772 | INIT: |
773 | /* If the buffer is a reference, dereference it */ |
774 | sv = deRef(sv, "adler32") ; |
775 | #ifdef UTF8_AVAILABLE |
776 | if (DO_UTF8(sv) && !sv_utf8_downgrade(sv, 1)) |
777 | croak("Wide character in Compress::Zlib::adler32"); |
778 | #endif |
779 | buf = (Byte*)SvPVbyte(sv, len) ; |
f4c6fd49 |
780 | |
642e522c |
781 | if (items < 2) |
782 | adler = adlerInitial; |
783 | else if (SvOK(ST(1))) |
784 | adler = SvUV(ST(1)) ; |
785 | else |
786 | adler = adlerInitial; |
787 | |
788 | #define Zip_crc32(buf, crc) crc32(crc, buf, (uInt)len) |
f4c6fd49 |
789 | |
642e522c |
790 | uLong |
791 | Zip_crc32(buf, crc=crcInitial) |
792 | uLong crc = NO_INIT |
793 | STRLEN len = NO_INIT |
794 | Bytef * buf = NO_INIT |
795 | SV * sv = ST(0) ; |
796 | INIT: |
797 | /* If the buffer is a reference, dereference it */ |
798 | sv = deRef(sv, "crc32") ; |
799 | #ifdef UTF8_AVAILABLE |
800 | if (DO_UTF8(sv) && !sv_utf8_downgrade(sv, 1)) |
801 | croak("Wide character in Compress::Zlib::crc32"); |
802 | #endif |
803 | buf = (Byte*)SvPVbyte(sv, len) ; |
f4c6fd49 |
804 | |
642e522c |
805 | if (items < 2) |
806 | crc = crcInitial; |
807 | else if (SvOK(ST(1))) |
808 | crc = SvUV(ST(1)) ; |
809 | else |
810 | crc = crcInitial; |
f4c6fd49 |
811 | |
812 | |
642e522c |
813 | uLong |
814 | crc32_combine(crc1, crc2, len2) |
815 | uLong crc1 |
816 | uLong crc2 |
817 | z_off_t len2 |
f4c6fd49 |
818 | CODE: |
642e522c |
819 | #ifndef AT_LEAST_ZLIB_1_2_2_1 |
820 | crc1 = crc1; crc2 = crc2 ; len2 = len2; /* Silence -Wall */ |
821 | croak("crc32_combine needs zlib 1.2.3 or better"); |
f4c6fd49 |
822 | #else |
642e522c |
823 | RETVAL = crc32_combine(crc1, crc2, len2); |
f4c6fd49 |
824 | #endif |
642e522c |
825 | OUTPUT: |
826 | RETVAL |
f4c6fd49 |
827 | |
828 | |
642e522c |
829 | uLong |
830 | adler32_combine(adler1, adler2, len2) |
831 | uLong adler1 |
832 | uLong adler2 |
833 | z_off_t len2 |
f4c6fd49 |
834 | CODE: |
642e522c |
835 | #ifndef AT_LEAST_ZLIB_1_2_2_1 |
836 | adler1 = adler1; adler2 = adler2 ; len2 = len2; /* Silence -Wall */ |
837 | croak("adler32_combine needs zlib 1.2.3 or better"); |
f4c6fd49 |
838 | #else |
642e522c |
839 | RETVAL = adler32_combine(adler1, adler2, len2); |
f4c6fd49 |
840 | #endif |
642e522c |
841 | OUTPUT: |
842 | RETVAL |
f4c6fd49 |
843 | |
f4c6fd49 |
844 | |
845 | MODULE = Compress::Zlib PACKAGE = Compress::Zlib |
846 | |
847 | void |
642e522c |
848 | _deflateInit(flags,level, method, windowBits, memLevel, strategy, bufsize, dictionary) |
849 | int flags |
f4c6fd49 |
850 | int level |
851 | int method |
852 | int windowBits |
853 | int memLevel |
854 | int strategy |
855 | uLong bufsize |
642e522c |
856 | SV* dictionary |
f4c6fd49 |
857 | PPCODE: |
f4c6fd49 |
858 | int err ; |
859 | deflateStream s ; |
860 | |
861 | if (trace) |
642e522c |
862 | warn("in _deflateInit(level=%d, method=%d, windowBits=%d, memLevel=%d, strategy=%d, bufsize=%ld\n", |
f4c6fd49 |
863 | level, method, windowBits, memLevel, strategy, bufsize) ; |
642e522c |
864 | if ((s = InitStream() )) { |
f4c6fd49 |
865 | |
866 | s->Level = level; |
867 | s->Method = method; |
868 | s->WindowBits = windowBits; |
869 | s->MemLevel = memLevel; |
870 | s->Strategy = strategy; |
871 | |
872 | err = deflateInit2(&(s->stream), level, |
873 | method, windowBits, memLevel, strategy); |
874 | |
875 | /* Check if a dictionary has been specified */ |
642e522c |
876 | |
f4c6fd49 |
877 | if (err == Z_OK && SvCUR(dictionary)) { |
642e522c |
878 | #ifdef UTF8_AVAILABLE |
879 | if (DO_UTF8(dictionary) && !sv_utf8_downgrade(dictionary, 1)) |
880 | croak("Wide character in Compress::Zlib::Deflate::new dicrionary parameter"); |
881 | #endif |
882 | err = deflateSetDictionary(&(s->stream), (const Bytef*) SvPVbyte_nolen(dictionary), |
f4c6fd49 |
883 | SvCUR(dictionary)) ; |
884 | s->dict_adler = s->stream.adler ; |
885 | } |
886 | |
887 | if (err != Z_OK) { |
888 | Safefree(s) ; |
889 | s = NULL ; |
890 | } |
642e522c |
891 | else |
892 | PostInitStream(s, flags, bufsize, windowBits) ; |
f4c6fd49 |
893 | |
894 | } |
895 | else |
896 | err = Z_MEM_ERROR ; |
897 | |
898 | XPUSHs(sv_setref_pv(sv_newmortal(), |
899 | "Compress::Zlib::deflateStream", (void*)s)); |
642e522c |
900 | if (GIMME == G_ARRAY) { |
901 | SV * sv = sv_2mortal(newSViv(err)) ; |
902 | setDUALstatus(sv, err); |
903 | XPUSHs(sv) ; |
904 | } |
f4c6fd49 |
905 | |
906 | void |
642e522c |
907 | _inflateInit(flags, windowBits, bufsize, dictionary) |
908 | int flags |
f4c6fd49 |
909 | int windowBits |
910 | uLong bufsize |
911 | SV * dictionary |
642e522c |
912 | ALIAS: |
913 | _inflateScanInit = 1 |
f4c6fd49 |
914 | PPCODE: |
915 | |
916 | int err = Z_OK ; |
917 | inflateStream s ; |
642e522c |
918 | #ifndef MAGIC_APPEND |
919 | if (ix == 1) |
920 | croak("inflateScanInit needs zlib 1.2.1 or better"); |
921 | #endif |
f4c6fd49 |
922 | if (trace) |
642e522c |
923 | warn("in _inflateInit(windowBits=%d, bufsize=%lu, dictionary=%lu\n", |
924 | windowBits, bufsize, (unsigned long)SvCUR(dictionary)) ; |
925 | if ((s = InitStream() )) { |
f4c6fd49 |
926 | |
927 | s->WindowBits = windowBits; |
928 | |
929 | err = inflateInit2(&(s->stream), windowBits); |
f4c6fd49 |
930 | if (err != Z_OK) { |
931 | Safefree(s) ; |
932 | s = NULL ; |
933 | } |
934 | else if (SvCUR(dictionary)) { |
935 | /* Dictionary specified - take a copy for use in inflate */ |
936 | s->dictionary = newSVsv(dictionary) ; |
937 | } |
642e522c |
938 | if (s) { |
939 | PostInitStream(s, flags, bufsize, windowBits) ; |
940 | #ifdef MAGIC_APPEND |
941 | if (ix == 1) |
942 | { |
943 | s->window = (unsigned char *)safemalloc(WINDOW_SIZE); |
944 | } |
945 | #endif |
946 | } |
f4c6fd49 |
947 | } |
948 | else |
949 | err = Z_MEM_ERROR ; |
950 | |
951 | XPUSHs(sv_setref_pv(sv_newmortal(), |
642e522c |
952 | ix == 1 |
953 | ? "Compress::Zlib::inflateScanStream" |
954 | : "Compress::Zlib::inflateStream", |
955 | (void*)s)); |
956 | if (GIMME == G_ARRAY) { |
957 | SV * sv = sv_2mortal(newSViv(err)) ; |
958 | setDUALstatus(sv, err); |
959 | XPUSHs(sv) ; |
960 | } |
f4c6fd49 |
961 | |
962 | |
963 | |
964 | MODULE = Compress::Zlib PACKAGE = Compress::Zlib::deflateStream |
965 | |
966 | void |
967 | DispStream(s, message=NULL) |
642e522c |
968 | Compress::Zlib::deflateStream s |
969 | char * message |
970 | |
971 | DualType |
972 | deflateReset(s) |
973 | Compress::Zlib::deflateStream s |
974 | CODE: |
975 | RETVAL = deflateReset(&(s->stream)) ; |
976 | if (RETVAL == Z_OK) { |
977 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; |
978 | } |
979 | OUTPUT: |
980 | RETVAL |
f4c6fd49 |
981 | |
642e522c |
982 | DualType |
983 | deflate (s, buf, output) |
f4c6fd49 |
984 | Compress::Zlib::deflateStream s |
985 | SV * buf |
642e522c |
986 | SV * output |
987 | uInt cur_length = NO_INIT |
988 | uInt increment = NO_INIT |
989 | int RETVAL = 0; |
990 | CODE: |
991 | |
992 | /* If the input buffer is a reference, dereference it */ |
f4c6fd49 |
993 | buf = deRef(buf, "deflate") ; |
994 | |
995 | /* initialise the input buffer */ |
642e522c |
996 | #ifdef UTF8_AVAILABLE |
997 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
998 | croak("Wide character in Compress::Zlib::Deflate::deflate input parameter"); |
999 | #endif |
d13b0db4 |
1000 | s->stream.next_in = (Bytef*)SvPVbyte_nolen(buf) ; |
1001 | s->stream.avail_in = SvCUR(buf) ; |
642e522c |
1002 | |
1003 | if (s->flags & FLAG_CRC32) |
1004 | s->crc32 = crc32(s->crc32, s->stream.next_in, s->stream.avail_in) ; |
1005 | |
1006 | if (s->flags & FLAG_ADLER32) |
1007 | s->adler32 = adler32(s->adler32, s->stream.next_in, s->stream.avail_in) ; |
1008 | |
1009 | /* and retrieve the output buffer */ |
1010 | output = deRef_l(output, "deflate") ; |
1011 | #ifdef UTF8_AVAILABLE |
1012 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
1013 | croak("Wide character in Compress::Zlib::Deflate::deflate output parameter"); |
1014 | #endif |
1015 | |
1016 | if((s->flags & FLAG_APPEND) != FLAG_APPEND) { |
1017 | SvCUR_set(output, 0); |
1018 | /* sv_setpvn(output, "", 0); */ |
1019 | } |
1020 | cur_length = SvCUR(output) ; |
1021 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
1022 | increment = SvLEN(output) - cur_length; |
1023 | s->stream.avail_out = increment; |
1024 | #ifdef SETP_BYTE |
f4c6fd49 |
1025 | /* Check for saved output from deflateParams */ |
1026 | if (s->deflateParams_out_valid) { |
1027 | *(s->stream.next_out) = s->deflateParams_out_byte; |
1028 | ++ s->stream.next_out; |
1029 | -- s->stream.avail_out ; |
1030 | s->deflateParams_out_valid = FALSE; |
1031 | } |
642e522c |
1032 | #else |
1033 | /* Check for saved output from deflateParams */ |
1034 | if (s->deflateParams_out_length) { |
1035 | uLong plen = s->deflateParams_out_length ; |
1036 | /* printf("Copy %d bytes saved data\n", plen);*/ |
1037 | if (s->stream.avail_out < plen) { |
1038 | /*printf("GROW from %d to %d\n", s->stream.avail_out, |
1039 | SvLEN(output) + plen - s->stream.avail_out); */ |
1040 | Sv_Grow(output, SvLEN(output) + plen - s->stream.avail_out) ; |
1041 | } |
1042 | |
1043 | Copy(s->stream.next_out, s->deflateParams_out_buffer, plen, Bytef) ; |
1044 | cur_length = cur_length + plen; |
1045 | SvCUR_set(output, cur_length); |
1046 | s->stream.next_out += plen ; |
1047 | s->stream.avail_out = SvLEN(output) - cur_length ; |
1048 | increment = s->stream.avail_out; |
1049 | s->deflateParams_out_length = 0; |
1050 | } |
1051 | #endif |
f4c6fd49 |
1052 | while (s->stream.avail_in != 0) { |
1053 | |
1054 | if (s->stream.avail_out == 0) { |
642e522c |
1055 | /* out of space in the output buffer so make it bigger */ |
642e522c |
1056 | Sv_Grow(output, SvLEN(output) + s->bufinc) ; |
1057 | cur_length += increment ; |
1058 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
1059 | increment = s->bufinc ; |
1060 | s->stream.avail_out = increment; |
6f5df6bc |
1061 | s->bufinc *= 2 ; |
f4c6fd49 |
1062 | } |
642e522c |
1063 | |
1064 | RETVAL = deflate(&(s->stream), Z_NO_FLUSH); |
1065 | if (RETVAL != Z_OK) |
f4c6fd49 |
1066 | break; |
1067 | } |
1068 | |
642e522c |
1069 | s->last_error = RETVAL ; |
1070 | if (RETVAL == Z_OK) { |
f4c6fd49 |
1071 | SvPOK_only(output); |
642e522c |
1072 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; |
f4c6fd49 |
1073 | } |
642e522c |
1074 | OUTPUT: |
1075 | RETVAL |
1076 | output |
f4c6fd49 |
1077 | |
1078 | |
f4c6fd49 |
1079 | void |
642e522c |
1080 | DESTROY(s) |
f4c6fd49 |
1081 | Compress::Zlib::deflateStream s |
642e522c |
1082 | CODE: |
1083 | deflateEnd(&s->stream) ; |
1084 | if (s->dictionary) |
1085 | SvREFCNT_dec(s->dictionary) ; |
1086 | #ifndef SETP_BYTE |
1087 | if (s->deflateParams_out_buffer) |
1088 | Safefree(s->deflateParams_out_buffer); |
1089 | #endif |
1090 | Safefree(s) ; |
1091 | |
1092 | |
1093 | DualType |
1094 | flush(s, output, f=Z_FINISH) |
1095 | Compress::Zlib::deflateStream s |
1096 | SV * output |
1097 | int f |
1098 | uInt cur_length = NO_INIT |
1099 | uInt increment = NO_INIT |
1100 | CODE: |
f4c6fd49 |
1101 | |
1102 | s->stream.avail_in = 0; /* should be zero already anyway */ |
1103 | |
642e522c |
1104 | /* retrieve the output buffer */ |
1105 | output = deRef_l(output, "flush") ; |
1106 | #ifdef UTF8_AVAILABLE |
1107 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
1108 | croak("Wide character in Compress::Zlib::Deflate::flush input parameter"); |
1109 | #endif |
1110 | if(! s->flags & FLAG_APPEND) { |
1111 | SvCUR_set(output, 0); |
1112 | /* sv_setpvn(output, "", 0); */ |
1113 | } |
1114 | cur_length = SvCUR(output) ; |
1115 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
1116 | increment = SvLEN(output) - cur_length; |
1117 | s->stream.avail_out = increment; |
1118 | #ifdef SETP_BYTE |
f4c6fd49 |
1119 | /* Check for saved output from deflateParams */ |
1120 | if (s->deflateParams_out_valid) { |
1121 | *(s->stream.next_out) = s->deflateParams_out_byte; |
1122 | ++ s->stream.next_out; |
1123 | -- s->stream.avail_out ; |
1124 | s->deflateParams_out_valid = FALSE; |
1125 | } |
642e522c |
1126 | #else |
1127 | /* Check for saved output from deflateParams */ |
1128 | if (s->deflateParams_out_length) { |
1129 | uLong plen = s->deflateParams_out_length ; |
1130 | /* printf("Copy %d bytes saved data\n", plen); */ |
1131 | if (s->stream.avail_out < plen) { |
1132 | /* printf("GROW from %d to %d\n", s->stream.avail_out, |
1133 | SvLEN(output) + plen - s->stream.avail_out); */ |
1134 | Sv_Grow(output, SvLEN(output) + plen - s->stream.avail_out) ; |
1135 | } |
1136 | |
1137 | Copy(s->stream.next_out, s->deflateParams_out_buffer, plen, Bytef) ; |
1138 | cur_length = cur_length + plen; |
1139 | SvCUR_set(output, cur_length); |
1140 | s->stream.next_out += plen ; |
1141 | s->stream.avail_out = SvLEN(output) - cur_length ; |
1142 | increment = s->stream.avail_out; |
1143 | s->deflateParams_out_length = 0; |
1144 | } |
1145 | #endif |
f4c6fd49 |
1146 | |
1147 | for (;;) { |
1148 | if (s->stream.avail_out == 0) { |
1149 | /* consumed all the available output, so extend it */ |
642e522c |
1150 | Sv_Grow(output, SvLEN(output) + s->bufinc) ; |
1151 | cur_length += increment ; |
1152 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
1153 | increment = s->bufinc ; |
1154 | s->stream.avail_out = increment; |
6f5df6bc |
1155 | s->bufinc *= 2 ; |
f4c6fd49 |
1156 | } |
642e522c |
1157 | RETVAL = deflate(&(s->stream), f); |
f4c6fd49 |
1158 | |
1159 | /* deflate has finished flushing only when it hasn't used up |
1160 | * all the available space in the output buffer: |
1161 | */ |
642e522c |
1162 | if (s->stream.avail_out != 0 || RETVAL != Z_OK ) |
f4c6fd49 |
1163 | break; |
1164 | } |
1165 | |
642e522c |
1166 | RETVAL = (RETVAL == Z_STREAM_END ? Z_OK : RETVAL) ; |
1167 | s->last_error = RETVAL ; |
f4c6fd49 |
1168 | |
642e522c |
1169 | if (RETVAL == Z_OK) { |
f4c6fd49 |
1170 | SvPOK_only(output); |
642e522c |
1171 | SvCUR_set(output, cur_length + increment - s->stream.avail_out) ; |
f4c6fd49 |
1172 | } |
642e522c |
1173 | OUTPUT: |
1174 | RETVAL |
1175 | output |
f4c6fd49 |
1176 | |
642e522c |
1177 | |
1178 | DualType |
f4c6fd49 |
1179 | _deflateParams(s, flags, level, strategy, bufsize) |
1180 | Compress::Zlib::deflateStream s |
1181 | int flags |
1182 | int level |
1183 | int strategy |
1184 | uLong bufsize |
1185 | CODE: |
642e522c |
1186 | /* printf("_deflateParams(Flags %d Level %d Strategy %d Bufsize %d)\n", flags, level, strategy, bufsize); |
1187 | printf("Before -- Level %d, Strategy %d, Bufsize %d\n", s->Level, s->Strategy, s->bufsize); */ |
f4c6fd49 |
1188 | if (flags & 1) |
1189 | s->Level = level ; |
1190 | if (flags & 2) |
1191 | s->Strategy = strategy ; |
642e522c |
1192 | if (flags & 4) { |
f4c6fd49 |
1193 | s->bufsize = bufsize; |
1194 | s->bufinc = bufsize; |
1195 | } |
642e522c |
1196 | /* printf("After -- Level %d, Strategy %d, Bufsize %d\n", s->Level, s->Strategy, s->bufsize);*/ |
1197 | #ifdef SETP_BYTE |
f4c6fd49 |
1198 | s->stream.avail_in = 0; |
1199 | s->stream.next_out = &(s->deflateParams_out_byte) ; |
1200 | s->stream.avail_out = 1; |
1201 | RETVAL = deflateParams(&(s->stream), s->Level, s->Strategy); |
1202 | s->deflateParams_out_valid = |
1203 | (RETVAL == Z_OK && s->stream.avail_out == 0) ; |
642e522c |
1204 | /* printf("RETVAL %d, avail out %d, byte %c\n", RETVAL, s->stream.avail_out, s->deflateParams_out_byte); */ |
1205 | #else |
1206 | /* printf("Level %d Strategy %d, Prev Len %d\n", |
1207 | s->Level, s->Strategy, s->deflateParams_out_length); */ |
1208 | s->stream.avail_in = 0; |
1209 | if (s->deflateParams_out_buffer == NULL) |
1210 | s->deflateParams_out_buffer = safemalloc(deflateParams_BUFFER_SIZE); |
1211 | s->stream.next_out = s->deflateParams_out_buffer ; |
1212 | s->stream.avail_out = deflateParams_BUFFER_SIZE; |
1213 | |
1214 | RETVAL = deflateParams(&(s->stream), s->Level, s->Strategy); |
1215 | s->deflateParams_out_length = deflateParams_BUFFER_SIZE - s->stream.avail_out; |
1216 | /* printf("RETVAL %d, length out %d, avail %d\n", |
1217 | RETVAL, s->deflateParams_out_length, s->stream.avail_out ); */ |
1218 | #endif |
f4c6fd49 |
1219 | OUTPUT: |
1220 | RETVAL |
1221 | |
1222 | |
1223 | int |
1224 | get_Level(s) |
1225 | Compress::Zlib::deflateStream s |
1226 | CODE: |
1227 | RETVAL = s->Level ; |
1228 | OUTPUT: |
1229 | RETVAL |
1230 | |
1231 | int |
1232 | get_Strategy(s) |
1233 | Compress::Zlib::deflateStream s |
1234 | CODE: |
1235 | RETVAL = s->Strategy ; |
1236 | OUTPUT: |
1237 | RETVAL |
1238 | |
642e522c |
1239 | |
1240 | uLong |
1241 | get_Bufsize(s) |
1242 | Compress::Zlib::deflateStream s |
1243 | CODE: |
1244 | RETVAL = s->bufsize ; |
1245 | OUTPUT: |
1246 | RETVAL |
f4c6fd49 |
1247 | |
1248 | |
642e522c |
1249 | int |
1250 | status(s) |
1251 | Compress::Zlib::deflateStream s |
1252 | CODE: |
1253 | RETVAL = s->last_error ; |
1254 | OUTPUT: |
1255 | RETVAL |
1256 | |
1257 | uLong |
1258 | crc32(s) |
1259 | Compress::Zlib::deflateStream s |
1260 | CODE: |
1261 | RETVAL = s->crc32 ; |
1262 | OUTPUT: |
1263 | RETVAL |
1264 | |
f4c6fd49 |
1265 | uLong |
1266 | dict_adler(s) |
1267 | Compress::Zlib::deflateStream s |
1268 | CODE: |
1269 | RETVAL = s->dict_adler ; |
1270 | OUTPUT: |
1271 | RETVAL |
1272 | |
1273 | uLong |
642e522c |
1274 | adler32(s) |
1275 | Compress::Zlib::deflateStream s |
1276 | CODE: |
1277 | RETVAL = s->adler32 ; |
1278 | OUTPUT: |
1279 | RETVAL |
1280 | |
1281 | uLong |
f4c6fd49 |
1282 | total_in(s) |
1283 | Compress::Zlib::deflateStream s |
1284 | CODE: |
642e522c |
1285 | RETVAL = s->stream.total_in ; |
f4c6fd49 |
1286 | OUTPUT: |
1287 | RETVAL |
1288 | |
1289 | uLong |
1290 | total_out(s) |
1291 | Compress::Zlib::deflateStream s |
1292 | CODE: |
642e522c |
1293 | RETVAL = s->stream.total_out ; |
f4c6fd49 |
1294 | OUTPUT: |
1295 | RETVAL |
1296 | |
1297 | char* |
1298 | msg(s) |
1299 | Compress::Zlib::deflateStream s |
1300 | CODE: |
642e522c |
1301 | RETVAL = s->stream.msg; |
f4c6fd49 |
1302 | OUTPUT: |
1303 | RETVAL |
1304 | |
642e522c |
1305 | int |
1306 | deflateTune(s, good_length, max_lazy, nice_length, max_chain) |
1307 | Compress::Zlib::deflateStream s |
1308 | int good_length |
1309 | int max_lazy |
1310 | int nice_length |
1311 | int max_chain |
1312 | CODE: |
1313 | #ifndef AT_LEAST_ZLIB_1_2_2_3 |
1314 | good_length = good_length; max_lazy = max_lazy ; /* Silence -Wall */ |
1315 | nice_length = nice_length; max_chain = max_chain; /* Silence -Wall */ |
1316 | croak("deflateTune needs zlib 1.2.2.3 or better"); |
1317 | #else |
1318 | RETVAL = deflateTune(&(s->stream), good_length, max_lazy, nice_length, max_chain); |
1319 | #endif |
1320 | OUTPUT: |
1321 | RETVAL |
1322 | |
f4c6fd49 |
1323 | |
1324 | MODULE = Compress::Zlib PACKAGE = Compress::Zlib::inflateStream |
1325 | |
1326 | void |
1327 | DispStream(s, message=NULL) |
642e522c |
1328 | Compress::Zlib::inflateStream s |
1329 | char * message |
f4c6fd49 |
1330 | |
642e522c |
1331 | DualType |
1332 | inflateReset(s) |
1333 | Compress::Zlib::inflateStream s |
1334 | CODE: |
1335 | RETVAL = inflateReset(&(s->stream)) ; |
1336 | if (RETVAL == Z_OK) { |
1337 | PostInitStream(s, s->flags, s->bufsize, s->WindowBits) ; |
1338 | } |
1339 | OUTPUT: |
1340 | RETVAL |
1341 | |
1342 | DualType |
1343 | inflate (s, buf, output) |
f4c6fd49 |
1344 | Compress::Zlib::inflateStream s |
1345 | SV * buf |
642e522c |
1346 | SV * output |
6f5df6bc |
1347 | uInt cur_length = 0; |
1348 | uInt prefix_length = 0; |
1349 | uInt increment = 0; |
d13b0db4 |
1350 | STRLEN stmp = NO_INIT |
642e522c |
1351 | PREINIT: |
1352 | #ifdef UTF8_AVAILABLE |
1353 | bool out_utf8 = FALSE; |
1354 | #endif |
1355 | CODE: |
f4c6fd49 |
1356 | /* If the buffer is a reference, dereference it */ |
1357 | buf = deRef(buf, "inflate") ; |
642e522c |
1358 | |
1359 | if (s->flags & FLAG_CONSUME_INPUT && SvREADONLY(buf)) |
1360 | croak("Compress::Zlib::Inflate::inflate input parameter cannot be read-only when ConsumeInput is specified"); |
1361 | #ifdef UTF8_AVAILABLE |
1362 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1363 | croak("Wide character in Compress::Zlib::Inflate::inflate input parameter"); |
1364 | #endif |
f4c6fd49 |
1365 | |
1366 | /* initialise the input buffer */ |
d13b0db4 |
1367 | s->stream.next_in = (Bytef*)SvPVbyte_force(buf, stmp) ; |
1368 | s->stream.avail_in = SvCUR(buf) ; |
f4c6fd49 |
1369 | |
642e522c |
1370 | /* and retrieve the output buffer */ |
1371 | output = deRef_l(output, "inflate") ; |
1372 | #ifdef UTF8_AVAILABLE |
1373 | if (DO_UTF8(output)) |
1374 | out_utf8 = TRUE ; |
1375 | if (DO_UTF8(output) && !sv_utf8_downgrade(output, 1)) |
1376 | croak("Wide character in Compress::Zlib::Inflate::inflate output parameter"); |
1377 | #endif |
1378 | if((s->flags & FLAG_APPEND) != FLAG_APPEND) { |
1379 | SvCUR_set(output, 0); |
1380 | } |
6f5df6bc |
1381 | if (SvLEN(output)) { |
1382 | prefix_length = cur_length = SvCUR(output) ; |
1383 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length; |
1384 | increment = SvLEN(output) - cur_length - 1; |
1385 | s->stream.avail_out = increment; |
1386 | } |
1387 | else { |
1388 | s->stream.avail_out = 0; |
1389 | } |
642e522c |
1390 | s->bytesInflated = 0; |
1391 | |
f4c6fd49 |
1392 | while (1) { |
1393 | |
1394 | if (s->stream.avail_out == 0) { |
642e522c |
1395 | /* out of space in the output buffer so make it bigger */ |
6f5df6bc |
1396 | Sv_Grow(output, SvLEN(output) + s->bufinc) ; |
642e522c |
1397 | cur_length += increment ; |
1398 | s->stream.next_out = (Bytef*) SvPVbyte_nolen(output) + cur_length ; |
1399 | increment = s->bufinc ; |
1400 | s->stream.avail_out = increment; |
6f5df6bc |
1401 | s->bufinc *= 2 ; |
f4c6fd49 |
1402 | } |
1403 | |
642e522c |
1404 | RETVAL = inflate(&(s->stream), Z_SYNC_FLUSH); |
f4c6fd49 |
1405 | |
642e522c |
1406 | |
1407 | if (RETVAL == Z_BUF_ERROR) { |
1408 | if (s->stream.avail_out == 0) |
1409 | continue ; |
1410 | if (s->stream.avail_in == 0) { |
1411 | RETVAL = Z_OK ; |
1412 | break ; |
1413 | } |
1414 | } |
1415 | |
1416 | if (RETVAL == Z_NEED_DICT && s->dictionary) { |
1417 | s->dict_adler = s->stream.adler ; |
1418 | RETVAL = inflateSetDictionary(&(s->stream), |
1419 | (const Bytef*)SvPVbyte_nolen(s->dictionary), |
1420 | SvCUR(s->dictionary)); |
1421 | } |
1422 | |
1423 | if (RETVAL != Z_OK) |
f4c6fd49 |
1424 | break; |
1425 | } |
1426 | |
642e522c |
1427 | s->last_error = RETVAL ; |
1428 | if (RETVAL == Z_OK || RETVAL == Z_STREAM_END || RETVAL == Z_DATA_ERROR) { |
f4c6fd49 |
1429 | unsigned in ; |
642e522c |
1430 | |
1431 | s->bytesInflated = cur_length + increment - s->stream.avail_out - prefix_length; |
f4c6fd49 |
1432 | SvPOK_only(output); |
642e522c |
1433 | SvCUR_set(output, prefix_length + s->bytesInflated) ; |
1434 | *SvEND(output) = '\0'; |
1435 | #ifdef UTF8_AVAILABLE |
1436 | if (out_utf8) |
1437 | sv_utf8_upgrade(output); |
1438 | #endif |
1439 | |
1440 | if (s->flags & FLAG_CRC32 ) |
1441 | s->crc32 = crc32(s->crc32, |
1442 | (const Bytef*)SvPVbyte_nolen(output)+prefix_length, |
1443 | SvCUR(output)-prefix_length) ; |
1444 | |
1445 | if (s->flags & FLAG_ADLER32) |
1446 | s->adler32 = adler32(s->adler32, |
1447 | (const Bytef*)SvPVbyte_nolen(output)+prefix_length, |
1448 | SvCUR(output)-prefix_length) ; |
1449 | |
1450 | /* fix the input buffer */ |
1451 | if (s->flags & FLAG_CONSUME_INPUT) { |
1452 | in = s->stream.avail_in ; |
1453 | SvCUR_set(buf, in) ; |
1454 | if (in) |
1455 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
f4c6fd49 |
1456 | *SvEND(buf) = '\0'; |
1457 | SvSETMAGIC(buf); |
1458 | } |
1459 | } |
642e522c |
1460 | OUTPUT: |
1461 | RETVAL |
1462 | buf |
1463 | output |
f4c6fd49 |
1464 | |
642e522c |
1465 | uLong |
1466 | inflateCount(s) |
1467 | Compress::Zlib::inflateStream s |
1468 | CODE: |
1469 | RETVAL = s->bytesInflated; |
1470 | OUTPUT: |
1471 | RETVAL |
1472 | |
1473 | |
1474 | DualType |
f4c6fd49 |
1475 | inflateSync (s, buf) |
1476 | Compress::Zlib::inflateStream s |
1477 | SV * buf |
1478 | CODE: |
1479 | |
1480 | /* If the buffer is a reference, dereference it */ |
1481 | buf = deRef(buf, "inflateSync") ; |
642e522c |
1482 | #ifdef UTF8_AVAILABLE |
1483 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1484 | croak("Wide character in Compress::Zlib::Inflate::inflateSync"); |
1485 | #endif |
f4c6fd49 |
1486 | |
1487 | /* initialise the input buffer */ |
642e522c |
1488 | s->stream.next_in = (Bytef*)SvPVbyte_nolen(buf) ; |
f4c6fd49 |
1489 | s->stream.avail_in = SvCUR(buf) ; |
1490 | |
1491 | /* inflateSync doesn't create any output */ |
1492 | s->stream.next_out = (Bytef*) NULL; |
1493 | s->stream.avail_out = 0; |
1494 | |
1495 | RETVAL = inflateSync(&(s->stream)); |
642e522c |
1496 | s->last_error = RETVAL ; |
1497 | |
1498 | /* fix the input buffer */ |
f4c6fd49 |
1499 | { |
f4c6fd49 |
1500 | unsigned in = s->stream.avail_in ; |
f4c6fd49 |
1501 | SvCUR_set(buf, in) ; |
1502 | if (in) |
642e522c |
1503 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
f4c6fd49 |
1504 | *SvEND(buf) = '\0'; |
1505 | SvSETMAGIC(buf); |
1506 | } |
1507 | OUTPUT: |
1508 | RETVAL |
642e522c |
1509 | buf |
f4c6fd49 |
1510 | |
1511 | void |
1512 | DESTROY(s) |
1513 | Compress::Zlib::inflateStream s |
1514 | CODE: |
1515 | inflateEnd(&s->stream) ; |
1516 | if (s->dictionary) |
1517 | SvREFCNT_dec(s->dictionary) ; |
642e522c |
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 |
f4c6fd49 |
1526 | Safefree(s) ; |
1527 | |
1528 | |
1529 | uLong |
642e522c |
1530 | status(s) |
1531 | Compress::Zlib::inflateStream s |
1532 | CODE: |
1533 | RETVAL = s->last_error ; |
1534 | OUTPUT: |
1535 | RETVAL |
1536 | |
1537 | uLong |
1538 | crc32(s) |
1539 | Compress::Zlib::inflateStream s |
1540 | CODE: |
1541 | RETVAL = s->crc32 ; |
1542 | OUTPUT: |
1543 | RETVAL |
1544 | |
1545 | uLong |
f4c6fd49 |
1546 | dict_adler(s) |
1547 | Compress::Zlib::inflateStream s |
1548 | CODE: |
1549 | RETVAL = s->dict_adler ; |
1550 | OUTPUT: |
1551 | RETVAL |
1552 | |
1553 | uLong |
1554 | total_in(s) |
1555 | Compress::Zlib::inflateStream s |
1556 | CODE: |
642e522c |
1557 | RETVAL = s->stream.total_in ; |
1558 | OUTPUT: |
1559 | RETVAL |
1560 | |
1561 | uLong |
1562 | adler32(s) |
1563 | Compress::Zlib::inflateStream s |
1564 | CODE: |
1565 | RETVAL = s->adler32 ; |
f4c6fd49 |
1566 | OUTPUT: |
1567 | RETVAL |
1568 | |
1569 | uLong |
1570 | total_out(s) |
1571 | Compress::Zlib::inflateStream s |
1572 | CODE: |
642e522c |
1573 | RETVAL = s->stream.total_out ; |
f4c6fd49 |
1574 | OUTPUT: |
1575 | RETVAL |
1576 | |
1577 | char* |
1578 | msg(s) |
1579 | Compress::Zlib::inflateStream s |
1580 | CODE: |
642e522c |
1581 | RETVAL = s->stream.msg; |
f4c6fd49 |
1582 | OUTPUT: |
1583 | RETVAL |
1584 | |
1585 | |
642e522c |
1586 | uLong |
1587 | get_Bufsize(s) |
1588 | Compress::Zlib::inflateStream s |
1589 | CODE: |
1590 | RETVAL = s->bufsize ; |
1591 | OUTPUT: |
1592 | RETVAL |
1593 | |
1594 | bool |
1595 | set_Append(s, mode) |
1596 | Compress::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::Zlib PACKAGE = Compress::Zlib::inflateScanStream |
1608 | |
1609 | void |
1610 | DESTROY(s) |
1611 | Compress::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::Zlib::inflateScanStream s |
1629 | char * message |
1630 | |
1631 | DualType |
1632 | scan(s, buf, out=NULL) |
1633 | Compress::Zlib::inflateScanStream s |
1634 | SV * buf |
1635 | SV * out |
1636 | int start_len = NO_INIT |
d13b0db4 |
1637 | STRLEN stmp = NO_INIT |
642e522c |
1638 | ALIAS: |
1639 | inflate = 1 |
1640 | CODE: |
1641 | /* If the input buffer is a reference, dereference it */ |
1642 | ix = ix ; /* warning suppression */ |
1643 | #ifndef MAGIC_APPEND |
1644 | buf = buf; |
1645 | croak("scan needs zlib 1.2.1 or better"); |
1646 | #else |
1647 | buf = deRef(buf, "inflateScan") ; |
1648 | #ifdef UTF8_AVAILABLE |
1649 | if (DO_UTF8(buf) && !sv_utf8_downgrade(buf, 1)) |
1650 | croak("Wide character in Compress::Zlib::InflateScan::scan input parameter"); |
1651 | #endif |
1652 | |
1653 | /* initialise the input buffer */ |
d13b0db4 |
1654 | s->stream.next_in = (Bytef*)SvPVbyte_force(buf, stmp) ; |
1655 | s->stream.avail_in = SvCUR(buf) ; |
642e522c |
1656 | start_len = s->stream.avail_in ; |
1657 | s->bytesInflated = 0 ; |
1658 | do |
1659 | { |
1660 | if (s->stream.avail_in == 0) { |
1661 | RETVAL = Z_OK ; |
1662 | break ; |
1663 | } |
1664 | |
1665 | /* set up output to next available section of sliding window */ |
1666 | s->stream.avail_out = WINDOW_SIZE - s->window_have; |
1667 | s->stream.next_out = s->window + s->window_have; |
1668 | |
1669 | /* DispStream(s, "before inflate\n"); */ |
1670 | |
1671 | /* inflate and check for errors */ |
1672 | RETVAL = inflate(&(s->stream), Z_BLOCK); |
1673 | |
1674 | |
1675 | if (start_len > 1) |
1676 | s->window_lastByte = *(s->stream.next_in - 1 ) ; |
1677 | |
1678 | if (RETVAL == Z_STREAM_ERROR || RETVAL == Z_MEM_ERROR || |
1679 | RETVAL == Z_DATA_ERROR ) |
1680 | break ; |
1681 | |
1682 | if (s->flags & FLAG_CRC32 ) |
1683 | s->crc32 = crc32(s->crc32, s->window + s->window_have, |
1684 | WINDOW_SIZE - s->window_have - s->stream.avail_out); |
1685 | |
1686 | if (s->flags & FLAG_ADLER32) |
1687 | s->adler32 = adler32(s->adler32, s->window + s->window_have, |
1688 | WINDOW_SIZE - s->window_have - s->stream.avail_out); |
1689 | |
1690 | s->bytesInflated += WINDOW_SIZE - s->window_have - s->stream.avail_out; |
1691 | |
1692 | if (s->stream.avail_out) |
1693 | s->window_have = WINDOW_SIZE - s->stream.avail_out; |
1694 | else { |
1695 | s->window_have = 0; |
1696 | s->window_full = 1; |
1697 | } |
1698 | |
1699 | /* process end of block */ |
1700 | if (s->stream.data_type & 128) { |
1701 | if (s->stream.data_type & 64) { |
1702 | s->window_left = s->stream.data_type & 0x1f; |
1703 | } |
1704 | else { |
1705 | s->window_lastbit = s->stream.data_type & 0x1f; |
1706 | s->lastBlockOffset = s->stream.total_in; |
1707 | } |
1708 | } |
1709 | |
1710 | } while (RETVAL != Z_STREAM_END); |
1711 | |
1712 | s->last_error = RETVAL ; |
1713 | s->window_lastoff = s->stream.total_in ; |
1714 | |
1715 | if (RETVAL == Z_STREAM_END) |
1716 | { |
1717 | s->matchedEndBlock = 1 ; |
1718 | |
1719 | /* save the location of the end of the compressed data */ |
1720 | s->window_end = SvCUR(buf) - s->stream.avail_in - 1 ; |
1721 | s->window_endOffset = s->stream.total_in ; |
1722 | if (s->window_left) |
1723 | { |
1724 | -- s->window_endOffset ; |
1725 | } |
1726 | |
1727 | /* if window wrapped, build dictionary from window by rotating */ |
1728 | if (s->window_full) { |
1729 | rotate(s->window, WINDOW_SIZE, s->window_have); |
1730 | s->window_have = WINDOW_SIZE; |
1731 | } |
1732 | |
1733 | /* if (s->flags & FLAG_CONSUME_INPUT) { */ |
1734 | if (1) { |
1735 | unsigned in = s->stream.avail_in ; |
1736 | SvCUR_set(buf, in) ; |
1737 | if (in) |
1738 | Move(s->stream.next_in, SvPVbyte_nolen(buf), in, char) ; |
1739 | *SvEND(buf) = '\0'; |
1740 | SvSETMAGIC(buf); |
1741 | } |
1742 | } |
1743 | #endif |
1744 | OUTPUT: |
1745 | RETVAL |
1746 | |
1747 | |
1748 | uLong |
1749 | getEndOffset(s) |
1750 | Compress::Zlib::inflateScanStream s |
1751 | CODE: |
1752 | #ifndef MAGIC_APPEND |
1753 | croak("getEndOffset needs zlib 1.2.1 or better"); |
1754 | #else |
1755 | RETVAL = s->window_endOffset; |
1756 | #endif |
1757 | OUTPUT: |
1758 | RETVAL |
1759 | |
1760 | uLong |
1761 | inflateCount(s) |
1762 | Compress::Zlib::inflateScanStream s |
1763 | CODE: |
1764 | #ifndef MAGIC_APPEND |
1765 | croak("inflateCount needs zlib 1.2.1 or better"); |
1766 | #else |
1767 | RETVAL = s->bytesInflated; |
1768 | #endif |
1769 | OUTPUT: |
1770 | RETVAL |
1771 | |
1772 | |
1773 | uLong |
1774 | getLastBlockOffset(s) |
1775 | Compress::Zlib::inflateScanStream s |
1776 | CODE: |
1777 | #ifndef MAGIC_APPEND |
1778 | croak("getLastBlockOffset needs zlib 1.2.1 or better"); |
1779 | #else |
1780 | RETVAL = s->lastBlockOffset - (s->window_lastbit != 0); |
1781 | #endif |
1782 | OUTPUT: |
1783 | RETVAL |
1784 | |
1785 | uLong |
1786 | getLastBufferOffset(s) |
1787 | Compress::Zlib::inflateScanStream s |
1788 | CODE: |
1789 | #ifndef MAGIC_APPEND |
1790 | croak("getLastBufferOffset needs zlib 1.2.1 or better"); |
1791 | #else |
1792 | RETVAL = s->window_lastoff; |
1793 | #endif |
1794 | OUTPUT: |
1795 | RETVAL |
1796 | |
1797 | void |
1798 | resetLastBlockByte(s, byte) |
1799 | Compress::Zlib::inflateScanStream s |
1800 | unsigned char* byte |
1801 | CODE: |
1802 | #ifndef MAGIC_APPEND |
1803 | croak("resetLastBlockByte needs zlib 1.2.1 or better"); |
1804 | #else |
1805 | *byte = *byte ^ (1 << ((8 - s->window_lastbit) & 7)); |
1806 | #endif |
1807 | |
1808 | |
1809 | void |
1810 | _createDeflateStream(inf_s, flags,level, method, windowBits, memLevel, strategy, bufsize) |
1811 | Compress::Zlib::inflateScanStream inf_s |
1812 | int flags |
1813 | int level |
1814 | int method |
1815 | int windowBits |
1816 | int memLevel |
1817 | int strategy |
1818 | uLong bufsize |
1819 | PPCODE: |
1820 | { |
1821 | #ifndef MAGIC_APPEND |
1822 | flags = flags; |
1823 | level = level ; |
1824 | method = method; |
1825 | windowBits = windowBits; |
1826 | memLevel = memLevel; |
1827 | strategy = strategy; |
1828 | bufsize= bufsize; |
1829 | croak("_createDeflateStream needs zlib 1.2.1 or better"); |
1830 | #else |
1831 | int err ; |
1832 | deflateStream s ; |
1833 | |
1834 | if (trace) |
1835 | warn("in _createDeflateStream(level=%d, method=%d, windowBits=%d, memLevel=%d, strategy=%d, bufsize=%lu\n", |
1836 | level, method, windowBits, memLevel, strategy, bufsize) ; |
1837 | if ((s = InitStream() )) { |
1838 | |
1839 | s->Level = level; |
1840 | s->Method = method; |
1841 | s->WindowBits = windowBits; |
1842 | s->MemLevel = memLevel; |
1843 | s->Strategy = strategy; |
1844 | |
1845 | err = deflateInit2(&(s->stream), level, |
1846 | method, windowBits, memLevel, strategy); |
1847 | |
1848 | if (err == Z_OK) { |
1849 | err = deflateSetDictionary(&(s->stream), inf_s->window, inf_s->window_have); |
1850 | s->dict_adler = s->stream.adler ; |
1851 | } |
1852 | |
1853 | if (err != Z_OK) { |
1854 | Safefree(s) ; |
1855 | s = NULL ; |
1856 | } |
1857 | else { |
1858 | PostInitStream(s, flags, bufsize, windowBits) ; |
1859 | s->crc32 = inf_s->crc32; |
1860 | s->adler32 = inf_s->adler32; |
1861 | s->stream.adler = inf_s->stream.adler ; |
1862 | /* s->stream.total_out = inf_s->bytesInflated ; */ |
1863 | s->stream.total_in = inf_s->stream.total_out ; |
1864 | if (inf_s->window_left) { |
1865 | /* printf("** window_left %d, window_lastByte %d\n", inf_s->window_left, inf_s->window_lastByte); */ |
1866 | deflatePrime(&(s->stream), 8 - inf_s->window_left, inf_s->window_lastByte); |
1867 | } |
1868 | } |
1869 | } |
1870 | else |
1871 | err = Z_MEM_ERROR ; |
1872 | |
1873 | XPUSHs(sv_setref_pv(sv_newmortal(), |
1874 | "Compress::Zlib::deflateStream", (void*)s)); |
1875 | if (GIMME == G_ARRAY) { |
1876 | SV * sv = sv_2mortal(newSViv(err)) ; |
1877 | setDUALstatus(sv, err); |
1878 | XPUSHs(sv) ; |
1879 | } |
1880 | #endif |
1881 | } |
1882 | |
1883 | DualType |
1884 | status(s) |
1885 | Compress::Zlib::inflateScanStream s |
1886 | CODE: |
1887 | RETVAL = s->last_error ; |
1888 | OUTPUT: |
1889 | RETVAL |
1890 | |
1891 | uLong |
1892 | crc32(s) |
1893 | Compress::Zlib::inflateScanStream s |
1894 | CODE: |
1895 | RETVAL = s->crc32 ; |
1896 | OUTPUT: |
1897 | RETVAL |
1898 | |
1899 | |
1900 | uLong |
1901 | adler32(s) |
1902 | Compress::Zlib::inflateScanStream s |
1903 | CODE: |
1904 | RETVAL = s->adler32 ; |
1905 | OUTPUT: |
1906 | RETVAL |
1907 | |