-- see zlib.h -- */
(file, c)
| 336 | |
| 337 | /* -- see zlib.h -- */ |
| 338 | int ZEXPORT gzputc(file, c) |
| 339 | gzFile file; |
| 340 | |
| 341 | int c; |
| 342 | { |
| 343 | unsigned have; |
| 344 | unsigned char buf[1]; |
| 345 | gz_statep state; |
| 346 | z_streamp strm; |
| 347 | |
| 348 | /* get internal structure */ |
| 349 | if (file == NULL) |
| 350 | return -1; |
| 351 | state = (gz_statep)file; |
| 352 | strm = &(state->strm); |
| 353 | |
| 354 | /* check that we're writing and that there's no error */ |
| 355 | if (state->mode != GZ_WRITE || state->err != Z_OK) |
| 356 | return -1; |
| 357 | |
| 358 | /* check for seek request */ |
| 359 | if (state->seek) |
| 360 | { |
| 361 | state->seek = 0; |
| 362 | if (gz_zero(state, state->skip) == -1) |
| 363 | return -1; |
| 364 | } |
| 365 | |
| 366 | /* try writing to input buffer for speed (state->size == 0 if buffer not |
| 367 | initialized) */ |
| 368 | if (state->size) |
| 369 | { |
| 370 | if (strm->avail_in == 0) |
| 371 | strm->next_in = state->in; |
| 372 | have = (unsigned)((strm->next_in + strm->avail_in) - state->in); |
| 373 | if (have < state->size) |
| 374 | { |
| 375 | state->in[have] = (unsigned char)c; |
| 376 | strm->avail_in++; |
| 377 | state->x.pos++; |
| 378 | return c & 0xff; |
| 379 | } |
| 380 | } |
| 381 | |
| 382 | /* no room in buffer or not initialized, use gz_write() */ |
| 383 | buf[0] = (unsigned char)c; |
| 384 | if (gz_write(state, buf, 1) != 1) |
| 385 | return -1; |
| 386 | return c & 0xff; |
| 387 | } |
| 388 | |
| 389 | /* -- see zlib.h -- */ |
| 390 | int ZEXPORT gzputs(file, str) |