File size: 72,146 Bytes
9375c9a |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 |
<html><!-- Created using the cpp_pretty_printer from the dlib C++ library. See http://dlib.net for updates. --><head><title>dlib C++ Library - gzwrite.c</title></head><body bgcolor='white'><pre>
<font color='#009900'>/* gzwrite.c -- zlib functions for writing gzip files
* Copyright (C) 2004, 2005, 2010, 2011, 2012, 2013 Mark Adler
* For conditions of distribution and use, see copyright notice in zlib.h
*/</font>
<font color='#0000FF'>#include</font> "<a style='text-decoration:none' href='gzguts.h.html'>gzguts.h</a>"
<font color='#009900'>/* Local functions */</font>
local <font color='#0000FF'><u>int</u></font> gz_init <b><a name='OF'></a>OF</b><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
local <font color='#0000FF'><u>int</u></font> gz_comp <b><a name='OF'></a>OF</b><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>gz_statep, <font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
local <font color='#0000FF'><u>int</u></font> gz_zero <b><a name='OF'></a>OF</b><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>gz_statep, z_off64_t<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#009900'>/* Initialize state for writing a gzip file. Mark initialization by setting
state->size to non-zero. Return -1 on failure or 0 on success. */</font>
local <font color='#0000FF'><u>int</u></font> <b><a name='gz_init'></a>gz_init</b><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>
gz_statep state;
<b>{</b>
<font color='#0000FF'><u>int</u></font> ret;
z_streamp strm <font color='#5555FF'>=</font> <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* allocate input buffer */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font color='#BB00BB'>malloc</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>want<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_MEM_ERROR, "<font color='#CC0000'>out of memory</font>"<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* only need output buffer and deflate state if compressing */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#5555FF'>!</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct<font face='Lucida Console'>)</font> <b>{</b>
<font color='#009900'>/* allocate output buffer */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>out <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font color='#BB00BB'>malloc</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>want<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>out <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_MEM_ERROR, "<font color='#CC0000'>out of memory</font>"<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* allocate deflate memory, set up for gzip compression */</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>zalloc <font color='#5555FF'>=</font> Z_NULL;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>zfree <font color='#5555FF'>=</font> Z_NULL;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>opaque <font color='#5555FF'>=</font> Z_NULL;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>deflateInit2</font><font face='Lucida Console'>(</font>strm, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>level, Z_DEFLATED,
MAX_WBITS <font color='#5555FF'>+</font> <font color='#979000'>16</font>, DEF_MEM_LEVEL, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>ret <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>out<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_MEM_ERROR, "<font color='#CC0000'>out of memory</font>"<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<b>}</b>
<font color='#009900'>/* mark state as initialized */</font>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>want;
<font color='#009900'>/* initialize write buffer if compressing */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#5555FF'>!</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct<font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_out <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_out <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>out;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.next <font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_out;
<b>}</b>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* Compress whatever is at avail_in and next_in and write to the output file.
Return -1 if there is an error writing to the output file, otherwise 0.
flush is assumed to be a valid deflate() flush value. If flush is Z_FINISH,
then the deflate() state is reset to start a new gzip stream. If gz->direct
is true, then simply write to the output file without compressing, and
ignore flush. */</font>
local <font color='#0000FF'><u>int</u></font> <b><a name='gz_comp'></a>gz_comp</b><font face='Lucida Console'>(</font>state, flush<font face='Lucida Console'>)</font>
gz_statep state;
<font color='#0000FF'><u>int</u></font> flush;
<b>{</b>
<font color='#0000FF'><u>int</u></font> ret, got;
<font color='#0000FF'><u>unsigned</u></font> have;
z_streamp strm <font color='#5555FF'>=</font> <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* allocate memory if this is the first time through */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_init</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* write directly if requested */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct<font face='Lucida Console'>)</font> <b>{</b>
got <font color='#5555FF'>=</font> <font color='#BB00BB'>write</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd, strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in, strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>got <font color='#5555FF'><</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>got <font color='#5555FF'>!</font><font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_ERRNO, <font color='#BB00BB'>zstrerror</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* run deflate() on provided input until it produces no more output */</font>
ret <font color='#5555FF'>=</font> Z_OK;
<font color='#0000FF'>do</font> <b>{</b>
<font color='#009900'>/* write out current buffer contents if full, or if flushing, but if
doing Z_FINISH then don't write until we get to Z_STREAM_END */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_out <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font>flush <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_NO_FLUSH <font color='#5555FF'>&</font><font color='#5555FF'>&</font>
<font face='Lucida Console'>(</font>flush <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_FINISH <font color='#5555FF'>|</font><font color='#5555FF'>|</font> ret <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_STREAM_END<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <b>{</b>
have <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_out <font color='#5555FF'>-</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.next<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>have <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>got <font color='#5555FF'>=</font> <font color='#BB00BB'>write</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.next, have<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <font color='#5555FF'><</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font>
<font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>got <font color='#5555FF'>!</font><font color='#5555FF'>=</font> have<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_ERRNO, <font color='#BB00BB'>zstrerror</font><font face='Lucida Console'>(</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_out <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_out <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_out <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>out;
<b>}</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.next <font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_out;
<b>}</b>
<font color='#009900'>/* compress */</font>
have <font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_out;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>deflate</font><font face='Lucida Console'>(</font>strm, flush<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>ret <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_STREAM_ERROR<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_STREAM_ERROR,
"<font color='#CC0000'>internal error: deflate stream corrupt</font>"<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
have <font color='#5555FF'>-</font><font color='#5555FF'>=</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_out;
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>have<font face='Lucida Console'>)</font>;
<font color='#009900'>/* if that completed a deflate stream, allow another to start */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>flush <font color='#5555FF'>=</font><font color='#5555FF'>=</font> Z_FINISH<font face='Lucida Console'>)</font>
<font color='#BB00BB'>deflateReset</font><font face='Lucida Console'>(</font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* all done, no errors */</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* Compress len zeros to output. Return -1 on error, 0 on success. */</font>
local <font color='#0000FF'><u>int</u></font> <b><a name='gz_zero'></a>gz_zero</b><font face='Lucida Console'>(</font>state, len<font face='Lucida Console'>)</font>
gz_statep state;
z_off64_t len;
<b>{</b>
<font color='#0000FF'><u>int</u></font> first;
<font color='#0000FF'><u>unsigned</u></font> n;
z_streamp strm <font color='#5555FF'>=</font> <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* consume whatever's left in the input buffer */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_NO_FLUSH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* compress len zeros (len guaranteed > 0) */</font>
first <font color='#5555FF'>=</font> <font color='#979000'>1</font>;
<font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>len<font face='Lucida Console'>)</font> <b>{</b>
n <font color='#5555FF'>=</font> <font color='#BB00BB'>GT_OFF</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size<font face='Lucida Console'>)</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> <font face='Lucida Console'>(</font>z_off64_t<font face='Lucida Console'>)</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>></font> len ?
<font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>len : state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>first<font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>memset</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in, <font color='#979000'>0</font>, n<font face='Lucida Console'>)</font>;
first <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<b>}</b>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font> n;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> n;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_NO_FLUSH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
len <font color='#5555FF'>-</font><font color='#5555FF'>=</font> n;
<b>}</b>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzwrite'></a>gzwrite</b><font face='Lucida Console'>(</font>file, buf, len<font face='Lucida Console'>)</font>
gzFile file;
voidpc buf;
<font color='#0000FF'><u>unsigned</u></font> len;
<b>{</b>
<font color='#0000FF'><u>unsigned</u></font> put <font color='#5555FF'>=</font> len;
gz_statep state;
z_streamp strm;
<font color='#009900'>/* get internal structure */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
strm <font color='#5555FF'>=</font> <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* check that we're writing and that there's no error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* since an int is returned, make sure len fits in one, otherwise return
with an error (this avoids the flaw in the interface) */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font>len <font color='#5555FF'><</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <b>{</b>
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_DATA_ERROR, "<font color='#CC0000'>requested length does not fit in int</font>"<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* if len is zero, avoid unnecessary operations */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>len <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* allocate memory if this is the first time through */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_init</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* check for seek request */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_zero</font><font face='Lucida Console'>(</font>state, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* for small len, copy to input buffer, otherwise compress directly */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>len <font color='#5555FF'><</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size<font face='Lucida Console'>)</font> <b>{</b>
<font color='#009900'>/* copy to input buffer, compress when full */</font>
<font color='#0000FF'>do</font> <b>{</b>
<font color='#0000FF'><u>unsigned</u></font> have, copy;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in;
have <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>+</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in<font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>;
copy <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>-</font> have;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>copy <font color='#5555FF'>></font> len<font face='Lucida Console'>)</font>
copy <font color='#5555FF'>=</font> len;
<font color='#BB00BB'>memcpy</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in <font color='#5555FF'>+</font> have, buf, copy<font face='Lucida Console'>)</font>;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>+</font><font color='#5555FF'>=</font> copy;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> copy;
buf <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>buf <font color='#5555FF'>+</font> copy;
len <font color='#5555FF'>-</font><font color='#5555FF'>=</font> copy;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>len <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_NO_FLUSH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b> <font color='#0000FF'>while</font> <font face='Lucida Console'>(</font>len<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#0000FF'>else</font> <b>{</b>
<font color='#009900'>/* consume whatever's left in the input buffer */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_NO_FLUSH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* directly compress user buffer to file */</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font> len;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>z_const Bytef <font color='#5555FF'>*</font><font face='Lucida Console'>)</font>buf;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> len;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_NO_FLUSH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* input was all buffered or compressed (put will fit in int) */</font>
<font color='#0000FF'>return</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font>put;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzputc'></a>gzputc</b><font face='Lucida Console'>(</font>file, c<font face='Lucida Console'>)</font>
gzFile file;
<font color='#0000FF'><u>int</u></font> c;
<b>{</b>
<font color='#0000FF'><u>unsigned</u></font> have;
<font color='#0000FF'><u>unsigned</u></font> <font color='#0000FF'><u>char</u></font> buf[<font color='#979000'>1</font>];
gz_statep state;
z_streamp strm;
<font color='#009900'>/* get internal structure */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
strm <font color='#5555FF'>=</font> <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* check that we're writing and that there's no error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#009900'>/* check for seek request */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_zero</font><font face='Lucida Console'>(</font>state, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* try writing to input buffer for speed (state->size == 0 if buffer not
initialized) */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in;
have <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>+</font> strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in<font face='Lucida Console'>)</font> <font color='#5555FF'>-</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>have <font color='#5555FF'><</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in[have] <font color='#5555FF'>=</font> c;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in<font color='#5555FF'>+</font><font color='#5555FF'>+</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos<font color='#5555FF'>+</font><font color='#5555FF'>+</font>;
<font color='#0000FF'>return</font> c <font color='#5555FF'>&</font> <font color='#979000'>0xff</font>;
<b>}</b>
<b>}</b>
<font color='#009900'>/* no room in buffer or not initialized, use gz_write() */</font>
buf[<font color='#979000'>0</font>] <font color='#5555FF'>=</font> c;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gzwrite</font><font face='Lucida Console'>(</font>file, buf, <font color='#979000'>1</font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<font color='#0000FF'>return</font> c <font color='#5555FF'>&</font> <font color='#979000'>0xff</font>;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzputs'></a>gzputs</b><font face='Lucida Console'>(</font>file, str<font face='Lucida Console'>)</font>
gzFile file;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>str;
<b>{</b>
<font color='#0000FF'><u>int</u></font> ret;
<font color='#0000FF'><u>unsigned</u></font> len;
<font color='#009900'>/* write string */</font>
len <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font><font color='#BB00BB'>strlen</font><font face='Lucida Console'>(</font>str<font face='Lucida Console'>)</font>;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>gzwrite</font><font face='Lucida Console'>(</font>file, str, len<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> ret <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> len <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> ? <font color='#5555FF'>-</font><font color='#979000'>1</font> : ret;
<b>}</b>
<font color='#0000FF'>#if</font> defined<font face='Lucida Console'>(</font>STDC<font face='Lucida Console'>)</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> defined<font face='Lucida Console'>(</font>Z_HAVE_STDARG_H<font face='Lucida Console'>)</font>
<font color='#0000FF'>#include</font> <font color='#5555FF'><</font>stdarg.h<font color='#5555FF'>></font>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORTVA <b><a name='gzvprintf'></a>gzvprintf</b><font face='Lucida Console'>(</font>gzFile file, <font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>format, va_list va<font face='Lucida Console'>)</font>
<b>{</b>
<font color='#0000FF'><u>int</u></font> size, len;
gz_statep state;
z_streamp strm;
<font color='#009900'>/* get internal structure */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
strm <font color='#5555FF'>=</font> <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* check that we're writing and that there's no error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* make sure we have some buffer space */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_init</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* check for seek request */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_zero</font><font face='Lucida Console'>(</font>state, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* consume whatever's left in the input buffer */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_NO_FLUSH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* do the printf() into the input buffer, put length in len */</font>
size <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in[size <font color='#5555FF'>-</font> <font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>#ifdef</font> NO_vsnprintf
# ifdef <font color='#BB00BB'>HAS_vsprintf_void</font>
<font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font><font color='#BB00BB'>vsprintf</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>, format, va<font face='Lucida Console'>)</font>;
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>len <font color='#5555FF'>=</font> <font color='#979000'>0</font>; len <font color='#5555FF'><</font> size; len<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in[len] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <font color='#0000FF'>break</font>;
# <font color='#0000FF'>else</font>
len <font color='#5555FF'>=</font> <font color='#BB00BB'>vsprintf</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>, format, va<font face='Lucida Console'>)</font>;
# endif
<font color='#0000FF'>#else</font>
# ifdef <font color='#BB00BB'>HAS_vsnprintf_void</font>
<font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font><font color='#BB00BB'>vsnprintf</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>, size, format, va<font face='Lucida Console'>)</font>;
len <font color='#5555FF'>=</font> <font color='#BB00BB'>strlen</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
# <font color='#0000FF'>else</font>
len <font color='#5555FF'>=</font> <font color='#BB00BB'>vsnprintf</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>, size, format, va<font face='Lucida Console'>)</font>;
# endif
<font color='#0000FF'>#endif</font>
<font color='#009900'>/* check that printf() results fit in buffer */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>len <font color='#5555FF'><</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> len <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font>size <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in[size <font color='#5555FF'>-</font> <font color='#979000'>1</font>] <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* update buffer and position, defer compression until needed */</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>len;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> len;
<font color='#0000FF'>return</font> len;
<b>}</b>
<font color='#0000FF'><u>int</u></font> ZEXPORTVA <b><a name='gzprintf'></a>gzprintf</b><font face='Lucida Console'>(</font>gzFile file, <font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>format, ...<font face='Lucida Console'>)</font>
<b>{</b>
va_list va;
<font color='#0000FF'><u>int</u></font> ret;
<font color='#BB00BB'>va_start</font><font face='Lucida Console'>(</font>va, format<font face='Lucida Console'>)</font>;
ret <font color='#5555FF'>=</font> <font color='#BB00BB'>gzvprintf</font><font face='Lucida Console'>(</font>file, format, va<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>va_end</font><font face='Lucida Console'>(</font>va<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> ret;
<b>}</b>
<font color='#0000FF'>#else</font> <font color='#009900'>/* !STDC && !Z_HAVE_STDARG_H */</font>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORTVA <b><a name='gzprintf'></a>gzprintf</b> <font face='Lucida Console'>(</font>file, format, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20<font face='Lucida Console'>)</font>
gzFile file;
<font color='#0000FF'>const</font> <font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font>format;
<font color='#0000FF'><u>int</u></font> a1, a2, a3, a4, a5, a6, a7, a8, a9, a10,
a11, a12, a13, a14, a15, a16, a17, a18, a19, a20;
<b>{</b>
<font color='#0000FF'><u>int</u></font> size, len;
gz_statep state;
z_streamp strm;
<font color='#009900'>/* get internal structure */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
strm <font color='#5555FF'>=</font> <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* check that can really pass pointer in ints */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font> <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#0000FF'>sizeof</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* check that we're writing and that there's no error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* make sure we have some buffer space */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_init</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* check for seek request */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_zero</font><font face='Lucida Console'>(</font>state, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<b>}</b>
<font color='#009900'>/* consume whatever's left in the input buffer */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_NO_FLUSH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* do the printf() into the input buffer, put length in len */</font>
size <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size<font face='Lucida Console'>)</font>;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in[size <font color='#5555FF'>-</font> <font color='#979000'>1</font>] <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>#ifdef</font> NO_snprintf
# ifdef HAS_sprintf_void
<font color='#BB00BB'>sprintf</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>, format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20<font face='Lucida Console'>)</font>;
<font color='#0000FF'>for</font> <font face='Lucida Console'>(</font>len <font color='#5555FF'>=</font> <font color='#979000'>0</font>; len <font color='#5555FF'><</font> size; len<font color='#5555FF'>+</font><font color='#5555FF'>+</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in[len] <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font> <font color='#0000FF'>break</font>;
# <font color='#0000FF'>else</font>
len <font color='#5555FF'>=</font> <font color='#BB00BB'>sprintf</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>, format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20<font face='Lucida Console'>)</font>;
# endif
<font color='#0000FF'>#else</font>
# ifdef HAS_snprintf_void
<font color='#BB00BB'>snprintf</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>, size, format, a1, a2, a3, a4, a5, a6, a7, a8,
a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20<font face='Lucida Console'>)</font>;
len <font color='#5555FF'>=</font> <font color='#BB00BB'>strlen</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
# <font color='#0000FF'>else</font>
len <font color='#5555FF'>=</font> <font color='#BB00BB'>snprintf</font><font face='Lucida Console'>(</font><font face='Lucida Console'>(</font><font color='#0000FF'><u>char</u></font> <font color='#5555FF'>*</font><font face='Lucida Console'>)</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>, size, format, a1, a2, a3, a4, a5, a6,
a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18,
a19, a20<font face='Lucida Console'>)</font>;
# endif
<font color='#0000FF'>#endif</font>
<font color='#009900'>/* check that printf() results fit in buffer */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>len <font color='#5555FF'><</font><font color='#5555FF'>=</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> len <font color='#5555FF'>></font><font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>int</u></font><font face='Lucida Console'>)</font>size <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in[size <font color='#5555FF'>-</font> <font color='#979000'>1</font>] <font color='#5555FF'>!</font><font color='#5555FF'>=</font> <font color='#979000'>0</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#979000'>0</font>;
<font color='#009900'>/* update buffer and position, defer compression until needed */</font>
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font><font color='#0000FF'><u>unsigned</u></font><font face='Lucida Console'>)</font>len;
strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>next_in <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>x.pos <font color='#5555FF'>+</font><font color='#5555FF'>=</font> len;
<font color='#0000FF'>return</font> len;
<b>}</b>
<font color='#0000FF'>#endif</font>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzflush'></a>gzflush</b><font face='Lucida Console'>(</font>file, flush<font face='Lucida Console'>)</font>
gzFile file;
<font color='#0000FF'><u>int</u></font> flush;
<b>{</b>
gz_statep state;
<font color='#009900'>/* get internal structure */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#009900'>/* check that we're writing and that there's no error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
<font color='#009900'>/* check flush parameter */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>flush <font color='#5555FF'><</font> <font color='#979000'>0</font> <font color='#5555FF'>|</font><font color='#5555FF'>|</font> flush <font color='#5555FF'>></font> Z_FINISH<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
<font color='#009900'>/* check for seek request */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_zero</font><font face='Lucida Console'>(</font>state, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* compress remaining data with requested flush */</font>
<font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, flush<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzsetparams'></a>gzsetparams</b><font face='Lucida Console'>(</font>file, level, strategy<font face='Lucida Console'>)</font>
gzFile file;
<font color='#0000FF'><u>int</u></font> level;
<font color='#0000FF'><u>int</u></font> strategy;
<b>{</b>
gz_statep state;
z_streamp strm;
<font color='#009900'>/* get internal structure */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
strm <font color='#5555FF'>=</font> <font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font>;
<font color='#009900'>/* check that we're writing and that there's no error */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE <font color='#5555FF'>|</font><font color='#5555FF'>|</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err <font color='#5555FF'>!</font><font color='#5555FF'>=</font> Z_OK<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
<font color='#009900'>/* if no change is requested, then do nothing */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>level <font color='#5555FF'>=</font><font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>level <font color='#5555FF'>&</font><font color='#5555FF'>&</font> strategy <font color='#5555FF'>=</font><font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_OK;
<font color='#009900'>/* check for seek request */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_zero</font><font face='Lucida Console'>(</font>state, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> <font color='#5555FF'>-</font><font color='#979000'>1</font>;
<b>}</b>
<font color='#009900'>/* change compression parameters for subsequent input */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size<font face='Lucida Console'>)</font> <b>{</b>
<font color='#009900'>/* flush previous input with previous parameters before changing */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>strm<font color='#5555FF'>-</font><font color='#5555FF'>></font>avail_in <font color='#5555FF'>&</font><font color='#5555FF'>&</font> <font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_PARTIAL_FLUSH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err;
<font color='#BB00BB'>deflateParams</font><font face='Lucida Console'>(</font>strm, level, strategy<font face='Lucida Console'>)</font>;
<b>}</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>level <font color='#5555FF'>=</font> level;
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strategy <font color='#5555FF'>=</font> strategy;
<font color='#0000FF'>return</font> Z_OK;
<b>}</b>
<font color='#009900'>/* -- see zlib.h -- */</font>
<font color='#0000FF'><u>int</u></font> ZEXPORT <b><a name='gzclose_w'></a>gzclose_w</b><font face='Lucida Console'>(</font>file<font face='Lucida Console'>)</font>
gzFile file;
<b>{</b>
<font color='#0000FF'><u>int</u></font> ret <font color='#5555FF'>=</font> Z_OK;
gz_statep state;
<font color='#009900'>/* get internal structure */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>file <font color='#5555FF'>=</font><font color='#5555FF'>=</font> NULL<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
state <font color='#5555FF'>=</font> <font face='Lucida Console'>(</font>gz_statep<font face='Lucida Console'>)</font>file;
<font color='#009900'>/* check that we're writing */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>mode <font color='#5555FF'>!</font><font color='#5555FF'>=</font> GZ_WRITE<font face='Lucida Console'>)</font>
<font color='#0000FF'>return</font> Z_STREAM_ERROR;
<font color='#009900'>/* check for seek request */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek<font face='Lucida Console'>)</font> <b>{</b>
state<font color='#5555FF'>-</font><font color='#5555FF'>></font>seek <font color='#5555FF'>=</font> <font color='#979000'>0</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_zero</font><font face='Lucida Console'>(</font>state, state<font color='#5555FF'>-</font><font color='#5555FF'>></font>skip<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
ret <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err;
<b>}</b>
<font color='#009900'>/* flush, free memory, and close file */</font>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>gz_comp</font><font face='Lucida Console'>(</font>state, Z_FINISH<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
ret <font color='#5555FF'>=</font> state<font color='#5555FF'>-</font><font color='#5555FF'>></font>err;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>size<font face='Lucida Console'>)</font> <b>{</b>
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#5555FF'>!</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>direct<font face='Lucida Console'>)</font> <b>{</b>
<font face='Lucida Console'>(</font><font color='#0000FF'><u>void</u></font><font face='Lucida Console'>)</font><font color='#BB00BB'>deflateEnd</font><font face='Lucida Console'>(</font><font color='#5555FF'>&</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>strm<font face='Lucida Console'>)</font><font face='Lucida Console'>)</font>;
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>out<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>in<font face='Lucida Console'>)</font>;
<b>}</b>
<font color='#BB00BB'>gz_error</font><font face='Lucida Console'>(</font>state, Z_OK, NULL<font face='Lucida Console'>)</font>;
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>path<font face='Lucida Console'>)</font>;
<font color='#0000FF'>if</font> <font face='Lucida Console'>(</font><font color='#BB00BB'>close</font><font face='Lucida Console'>(</font>state<font color='#5555FF'>-</font><font color='#5555FF'>></font>fd<font face='Lucida Console'>)</font> <font color='#5555FF'>=</font><font color='#5555FF'>=</font> <font color='#5555FF'>-</font><font color='#979000'>1</font><font face='Lucida Console'>)</font>
ret <font color='#5555FF'>=</font> Z_ERRNO;
<font color='#BB00BB'>free</font><font face='Lucida Console'>(</font>state<font face='Lucida Console'>)</font>;
<font color='#0000FF'>return</font> ret;
<b>}</b>
</pre></body></html> |