tx_strm.zalloc = z_alloc;
tx_strm.zfree = z_free;
if (deflateInit2(&tx_strm, Z_DEFAULT_COMPRESSION, 8,
- -15, 8, Z_DEFAULT_STRATEGY, -4) != Z_OK) {
+ -15, 8, Z_DEFAULT_STRATEGY) != Z_OK) {
fprintf(FERROR, "compression init failed\n");
exit_cleanup(1);
}
{
int n, r, flag;
static int init_done = 0;
+ static int saved_flag = 0;
for (;;) {
switch (recv_state) {
inflateReset(&rx_strm);
}
recv_state = r_idle;
+ rx_token = 0;
break;
case r_idle:
case r_inflated:
- flag = read_byte(f);
+ if (saved_flag) {
+ flag = saved_flag & 0xff;
+ saved_flag = 0;
+ } else
+ flag = read_byte(f);
if ((flag & 0xC0) == DEFLATED_DATA) {
n = ((flag & 0x3f) << 8) + read_byte(f);
read_buf(f, cbuf, n);
rx_strm.avail_out = CHUNK_SIZE;
r = inflate(&rx_strm, Z_PACKET_FLUSH);
n = CHUNK_SIZE - rx_strm.avail_out;
- if (r != Z_OK || n != 0) {
+ if (r != Z_OK) {
fprintf(FERROR, "inflate flush returned %d (%d bytes)\n",
r, n);
exit_cleanup(1);
}
+ if (n != 0) {
+ /* have to return some more data and
+ save the flag for later. */
+ saved_flag = flag + 0x10000;
+ if (rx_strm.avail_out != 0)
+ recv_state = r_idle;
+ *data = dbuf;
+ return n;
+ }
recv_state = r_idle;
}
if (flag == END_FLAG) {
rx_strm.avail_out = CHUNK_SIZE;
r = inflate(&rx_strm, Z_NO_FLUSH);
n = CHUNK_SIZE - rx_strm.avail_out;
- if (r != Z_OK || n == 0) {
+ if (r != Z_OK) {
fprintf(FERROR, "inflate returned %d (%d bytes)\n", r, n);
exit_cleanup(1);
}
- if (rx_strm.avail_out != 0)
+ if (rx_strm.avail_in == 0)
recv_state = r_inflated;
- *data = dbuf;
- return n;
+ if (n != 0) {
+ *data = dbuf;
+ return n;
+ }
+ break;
case r_running:
++rx_token;