c->decomp_size = 1;
} else { // ZLIB-compressed data
c->zstream.total_in = c->zstream.total_out = 0;
- c->zstream.next_in = buf;
+ c->zstream.next_in = (uint8_t*)buf;
c->zstream.avail_in = len;
c->zstream.next_out = c->decomp_buf;
c->zstream.avail_out = c->decomp_size;