-- see zlib.h -- */
(file, c)
| 308 | |
| 309 | /* -- see zlib.h -- */ |
| 310 | int ZEXPORT gzputc(file, c) |
| 311 | gzFile file; |
| 312 | int c; |
| 313 | { |
| 314 | unsigned have; |
| 315 | unsigned char buf[1]; |
| 316 | gz_statep state; |
| 317 | z_streamp strm; |
| 318 | |
| 319 | /* get internal structure */ |
| 320 | if (file == NULL) |
| 321 | return -1; |
| 322 | state.file = file; |
| 323 | strm = &(state.state->strm); |
| 324 | |
| 325 | /* check that we're writing and that there's no error */ |
| 326 | if (state.state->mode != GZ_WRITE || state.state->err != Z_OK) |
| 327 | return -1; |
| 328 | |
| 329 | /* check for seek request */ |
| 330 | if (state.state->seek) { |
| 331 | state.state->seek = 0; |
| 332 | if (gz_zero(state, state.state->skip) == -1) |
| 333 | return -1; |
| 334 | } |
| 335 | |
| 336 | /* try writing to input buffer for speed (state.state->size == 0 if buffer not |
| 337 | initialized) */ |
| 338 | if (state.state->size) { |
| 339 | if (strm->avail_in == 0) |
| 340 | strm->next_in = state.state->in; |
| 341 | have = (unsigned)((strm->next_in + strm->avail_in) - state.state->in); |
| 342 | if (have < state.state->size) { |
| 343 | state.state->in[have] = (unsigned char)c; |
| 344 | strm->avail_in++; |
| 345 | state.state->x.pos++; |
| 346 | return c & 0xff; |
| 347 | } |
| 348 | } |
| 349 | |
| 350 | /* no room in buffer or not initialized, use gz_write() */ |
| 351 | buf[0] = (unsigned char)c; |
| 352 | if (gz_write(state, buf, 1) != 1) |
| 353 | return -1; |
| 354 | return c & 0xff; |
| 355 | } |
| 356 | |
| 357 | /* -- see zlib.h -- */ |
| 358 | int ZEXPORT gzputs(file, str) |