-- see zlib.h -- */
| 285 | |
| 286 | /* -- see zlib.h -- */ |
| 287 | int ZEXPORT gzputc(gzFile file, int c) { |
| 288 | unsigned have; |
| 289 | unsigned char buf[1]; |
| 290 | gz_statep state; |
| 291 | z_streamp strm; |
| 292 | |
| 293 | /* get internal structure */ |
| 294 | if (file == NULL) |
| 295 | return -1; |
| 296 | state = (gz_statep)file; |
| 297 | strm = &(state->strm); |
| 298 | |
| 299 | /* check that we're writing and that there's no error */ |
| 300 | if (state->mode != GZ_WRITE || state->err != Z_OK) |
| 301 | return -1; |
| 302 | |
| 303 | /* check for seek request */ |
| 304 | if (state->seek) { |
| 305 | state->seek = 0; |
| 306 | if (gz_zero(state, state->skip) == -1) |
| 307 | return -1; |
| 308 | } |
| 309 | |
| 310 | /* try writing to input buffer for speed (state->size == 0 if buffer not |
| 311 | initialized) */ |
| 312 | if (state->size) { |
| 313 | if (strm->avail_in == 0) |
| 314 | strm->next_in = state->in; |
| 315 | have = (unsigned)((strm->next_in + strm->avail_in) - state->in); |
| 316 | if (have < state->size) { |
| 317 | state->in[have] = (unsigned char)c; |
| 318 | strm->avail_in++; |
| 319 | state->x.pos++; |
| 320 | return c & 0xff; |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | /* no room in buffer or not initialized, use gz_write() */ |
| 325 | buf[0] = (unsigned char)c; |
| 326 | if (gz_write(state, buf, 1) != 1) |
| 327 | return -1; |
| 328 | return c & 0xff; |
| 329 | } |
| 330 | |
| 331 | /* -- see zlib.h -- */ |
| 332 | int ZEXPORT gzputs(gzFile file, const char *s) { |