usr.sbin/ppp/deflate.c

47     z_stream cx;
62   deflateReset(&state->cx);
104   state->cx.next_out = wp;
105   state->cx.avail_out = DEFLATE_CHUNK_LEN - 2;
106   state->cx.next_in = MBUF_CTOP(mi);
107   state->cx.avail_in = mi->m_len;
112     if ((res = deflate(&state->cx, flush)) != Z_OK) {
116                 res, state->cx.msg ? state->cx.msg : "");
123     if (flush == Z_SYNC_FLUSH && state->cx.avail_out != 0)
126     if (state->cx.avail_in == 0 && mi->m_next != NULL) {
128       state->cx.next_in = MBUF_CTOP(mi);
129       state->cx.avail_in = mi->m_len;
134     if (state->cx.avail_out == 0) {
139       state->cx.next_out = MBUF_CTOP(mo);
140       state->cx.avail_out = DEFLATE_CHUNK_LEN;
144   olen += (mo->m_len = DEFLATE_CHUNK_LEN - state->cx.avail_out);
194   inflateReset(&state->cx);
246   state->cx.next_in = MBUF_CTOP(mi);
247   state->cx.avail_in = mi->m_len;
248   state->cx.next_out = wp + 1;
249   state->cx.avail_out = 1;
257     if ((res = inflate(&state->cx, flush)) != Z_OK) {
261                 res, state->cx.msg ? state->cx.msg : "");
268     if (flush == Z_SYNC_FLUSH && state->cx.avail_out != 0)
271     if (state->cx.avail_in == 0 && mi && (mi = m_free(mi)) != NULL) {
273       state->cx.next_in = MBUF_CTOP(mi);
274       ilen += (state->cx.avail_in = mi->m_len);
279     if (state->cx.avail_out == 0) {
285           state->cx.next_out--;
286           state->cx.avail_out = DEFLATE_CHUNK_LEN-1;
288           state->cx.avail_out = DEFLATE_CHUNK_LEN-2;
294         state->cx.next_out = MBUF_CTOP(mo);
295         state->cx.avail_out = DEFLATE_CHUNK_LEN;
310   olen += (mo->m_len = DEFLATE_CHUNK_LEN - state->cx.avail_out);
327   state->cx.next_out = garbage;
328   state->cx.avail_out = sizeof garbage;
329   state->cx.next_in = EMPTY_BLOCK;
330   state->cx.avail_in = sizeof EMPTY_BLOCK;
331   inflate(&state->cx, Z_SYNC_FLUSH);
372   state->cx.next_in = rp;
373   state->cx.avail_in = mi->m_len;
374   state->cx.next_out = garbage;
375   state->cx.avail_out = sizeof garbage;
380     if ((res = inflate(&state->cx, flush)) != Z_OK) {
386                 res, state->cx.msg ? state->cx.msg : "");
388                 state->cx.avail_in, state->cx.avail_out);
394     if (flush == Z_SYNC_FLUSH && state->cx.avail_out != 0)
397     if (state->cx.avail_in == 0 && mi && (mi = mi->m_next) != NULL) {
399       state->cx.next_in = MBUF_CTOP(mi);
400       state->cx.avail_in = mi->m_len;
405     if (state->cx.avail_out == 0) {
406       if (state->cx.avail_in == 0)
420       state->cx.next_out = garbage;
421       state->cx.avail_out = sizeof garbage;
496     state->cx.zalloc = NULL;
497     state->cx.opaque = NULL;
498     state->cx.zfree = NULL;
499     state->cx.next_out = NULL;
500     if (inflateInit2(&state->cx, -state->winsize) == Z_OK)
519     state->cx.zalloc = NULL;
520     state->cx.opaque = NULL;
521     state->cx.zfree = NULL;
522     state->cx.next_in = NULL;
523     if (deflateInit2(&state->cx, Z_DEFAULT_COMPRESSION, 8,
540   inflateEnd(&state->cx);
549   deflateEnd(&state->cx);