contrib/zlib/gzread.c

14                   unsigned *have) {
18     *have = 0;
20         get = len - *have;
23         ret = read(state->fd, buf + *have, get);
26         *have += (unsigned)ret;
27     } while (*have < len);
68 /* Look for gzip header, set up for inflate or copy.  state->x.have must be 0.
136         state->x.have = 0;
145     state->x.have = strm->avail_in;
153    On return, state->x.have and state->x.next point to the just decompressed
155    the next gzip stream or raw data, once state->x.have is depleted.  Returns 0
192     state->x.have = had - strm->avail_out;
193     state->x.next = strm->next_out - state->x.have;
203 /* Fetch data and put it in the output buffer.  Assumes state->x.have is 0.
221             if (gz_load(state, state->out, state->size << 1, &(state->x.have))
232     } while (state->x.have == 0 && (!state->eof || strm->avail_in));
243         if (state->x.have) {
244             n = GT_OFF(state->x.have) || (z_off64_t)state->x.have > len ?
245                 (unsigned)len : state->x.have;
246             state->x.have -= n;
293         if (state->x.have) {
294             if (state->x.have < n)
295                 n = state->x.have;
298             state->x.have -= n;
330             n = state->x.have;
331             state->x.have = 0;
424     if (state->x.have) {
425         state->x.have--;
448     if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)
468     if (state->x.have == 0) {
469         state->x.have = 1;
477     /* if no room, give up (must have already done a gzungetc()) */
478     if (state->x.have == (state->size << 1)) {
485         unsigned char *src = state->out + state->x.have;
491     state->x.have++;
530         if (state->x.have == 0 && gz_fetch(state) == -1)
532         if (state->x.have == 0) {       /* end of file */
534             break;                      /* return what we have */
538         n = state->x.have > left ? left : state->x.have;
545         state->x.have -= n;
570     if (state->mode == GZ_READ && state->how == LOOK && state->x.have == 0)