Lines Matching refs:state
72 /* Reset gzip file state */
73 local void gz_reset(state)
74 gz_statep state;
76 if (state->mode == GZ_READ) { /* for reading ... */
77 state->have = 0; /* no output data available */
78 state->eof = 0; /* not at end of file */
79 state->how = LOOK; /* look for gzip header */
80 state->direct = 1; /* default for empty file */
82 state->seek = 0; /* no seek request pending */
83 gz_error(state, Z_OK, NULL); /* clear error */
84 state->pos = 0; /* no uncompressed data yet */
85 state->strm.avail_in = 0; /* no input data yet */
94 gz_statep state;
97 state = malloc(sizeof(gz_state));
98 if (state == NULL)
100 state->size = 0; /* no buffers allocated yet */
101 state->want = GZBUFSIZE; /* requested buffer size */
102 state->msg = NULL; /* no error message yet */
105 state->mode = GZ_NONE;
106 state->level = Z_DEFAULT_COMPRESSION;
107 state->strategy = Z_DEFAULT_STRATEGY;
110 state->level = *mode - '0';
114 state->mode = GZ_READ;
118 state->mode = GZ_WRITE;
121 state->mode = GZ_APPEND;
125 free(state);
130 state->strategy = Z_FILTERED;
133 state->strategy = Z_HUFFMAN_ONLY;
136 state->strategy = Z_RLE;
139 state->strategy = Z_FIXED;
147 if (state->mode == GZ_NONE) {
148 free(state);
153 state->path = malloc(strlen(path) + 1);
154 if (state->path == NULL) {
155 free(state);
158 strcpy(state->path, path);
161 state->fd = fd != -1 ? fd :
169 (state->mode == GZ_READ ?
172 state->mode == GZ_WRITE ?
176 if (state->fd == -1) {
177 free(state->path);
178 free(state);
181 if (state->mode == GZ_APPEND)
182 state->mode = GZ_WRITE; /* simplify later checks */
185 if (state->mode == GZ_READ) {
186 state->start = LSEEK(state->fd, 0, SEEK_CUR);
187 if (state->start == -1) state->start = 0;
191 gz_reset(state);
194 return (gzFile)state;
234 gz_statep state;
239 state = (gz_statep)file;
240 if (state->mode != GZ_READ && state->mode != GZ_WRITE)
244 if (state->size != 0)
250 state->want = size;
258 gz_statep state;
263 state = (gz_statep)file;
266 if (state->mode != GZ_READ || state->err != Z_OK)
270 if (LSEEK(state->fd, state->start, SEEK_SET) == -1)
272 gz_reset(state);
284 gz_statep state;
289 state = (gz_statep)file;
290 if (state->mode != GZ_READ && state->mode != GZ_WRITE)
294 if (state->err != Z_OK)
303 offset -= state->pos;
304 else if (state->seek)
305 offset += state->skip;
306 state->seek = 0;
309 if (state->mode == GZ_READ && state->how == COPY &&
310 state->pos + offset >= state->raw) {
311 ret = LSEEK(state->fd, offset - state->have, SEEK_CUR);
314 state->have = 0;
315 state->eof = 0;
316 state->seek = 0;
317 gz_error(state, Z_OK, NULL);
318 state->strm.avail_in = 0;
319 state->pos += offset;
320 return state->pos;
325 if (state->mode != GZ_READ) /* writing -- can't go backwards */
327 offset += state->pos;
335 if (state->mode == GZ_READ) {
336 n = GT_OFF(state->have) || (z_off64_t)state->have > offset ?
337 (unsigned)offset : state->have;
338 state->have -= n;
339 state->next += n;
340 state->pos += n;
346 state->seek = 1;
347 state->skip = offset;
349 return state->pos + offset;
368 gz_statep state;
373 state = (gz_statep)file;
374 if (state->mode != GZ_READ && state->mode != GZ_WRITE)
378 return state->pos + (state->seek ? state->skip : 0);
396 gz_statep state;
401 state = (gz_statep)file;
402 if (state->mode != GZ_READ && state->mode != GZ_WRITE)
406 offset = LSEEK(state->fd, 0, SEEK_CUR);
409 if (state->mode == GZ_READ) /* reading */
410 offset -= state->strm.avail_in; /* don't count buffered input */
428 gz_statep state;
433 state = (gz_statep)file;
434 if (state->mode != GZ_READ && state->mode != GZ_WRITE)
437 /* return end-of-file state */
438 return state->mode == GZ_READ ?
439 (state->eof && state->strm.avail_in == 0 && state->have == 0) : 0;
447 gz_statep state;
452 state = (gz_statep)file;
453 if (state->mode != GZ_READ && state->mode != GZ_WRITE)
458 *errnum = state->err;
459 return state->msg == NULL ? "" : state->msg;
466 gz_statep state;
471 state = (gz_statep)file;
472 if (state->mode != GZ_READ && state->mode != GZ_WRITE)
476 if (state->mode == GZ_READ)
477 state->eof = 0;
478 gz_error(state, Z_OK, NULL);
481 /* Create an error message in allocated memory and set state->err and
482 state->msg accordingly. Free any previous error message already there. Do
487 void ZLIB_INTERNAL gz_error(state, err, msg)
488 gz_statep state;
493 if (state->msg != NULL) {
494 if (state->err != Z_MEM_ERROR)
495 free(state->msg);
496 state->msg = NULL;
500 state->err = err;
506 state->msg = (char *)msg;
511 if ((state->msg = malloc(strlen(state->path) + strlen(msg) + 3)) == NULL) {
512 state->err = Z_MEM_ERROR;
513 state->msg = (char *)"out of memory";
516 strcpy(state->msg, state->path);
517 strcat(state->msg, ": ");
518 strcat(state->msg, msg);
