lib/libz/gzread.c

51    If strm->avail_in != 0, then the current data is moved to the beginning of
58     z_streamp strm = &(state->strm);
63         if (strm->avail_in) {       /* copy what's there to the start */
65             unsigned const char *q = strm->next_in;
66             unsigned n = strm->avail_in;
71         if (gz_load(state, state->in + strm->avail_in,
72                     state->size - strm->avail_in, &got) == -1)
74         strm->avail_in += got;
75         strm->next_in = state->in;
92     z_streamp strm = &(state->strm);
110         state->strm.zalloc = Z_NULL;
111         state->strm.zfree = Z_NULL;
112         state->strm.opaque = Z_NULL;
113         state->strm.avail_in = 0;
114         state->strm.next_in = Z_NULL;
115         if (inflateInit2(&(state->strm), 15 + 16) != Z_OK) {    /* gunzip */
125     if (strm->avail_in < 2) {
128         if (strm->avail_in == 0)
139     if (strm->avail_in > 1 &&
140             strm->next_in[0] == 31 && strm->next_in[1] == 139) {
141         inflateReset(strm);
150         strm->avail_in = 0;
160     if (strm->avail_in) {
161         memcpy(state->x.next, strm->next_in, strm->avail_in);
162         state->x.have = strm->avail_in;
163         strm->avail_in = 0;
180     z_streamp strm = &(state->strm);
183     had = strm->avail_out;
186         if (strm->avail_in == 0 && gz_avail(state) == -1)
188         if (strm->avail_in == 0) {
194         ret = inflate(strm, Z_NO_FLUSH);
206                      strm->msg == NULL ? "compressed data error" : strm->msg);
209     } while (strm->avail_out && ret != Z_STREAM_END);
212     state->x.have = had - strm->avail_out;
213     state->x.next = strm->next_out - state->x.have;
232     z_streamp strm = &(state->strm);
249             strm->avail_out = state->size << 1;
250             strm->next_out = state->out;
254     } while (state->x.have == 0 && (!state->eof || strm->avail_in));
278         else if (state->eof && state->strm.avail_in == 0)
298     z_streamp strm;
304     strm = &(state->strm);
341         else if (state->eof && strm->avail_in == 0) {
365             strm->avail_out = len;
366             strm->next_out = (unsigned char *)buf;
587         inflateEnd(&(state->strm));