+ } else if (use_gzip && 1024 < rpc->len) {
+ /* The client backend isn't giving us compressed data so
+ * we can try to deflate it ourselves, this may save on.
+ * the transfer time.
+ */
+ size_t size;
+ z_stream stream;
+ int ret;
+
+ memset(&stream, 0, sizeof(stream));
+ ret = deflateInit2(&stream, Z_BEST_COMPRESSION,
+ Z_DEFLATED, (15 + 16),
+ 8, Z_DEFAULT_STRATEGY);
+ if (ret != Z_OK)
+ die("cannot deflate request; zlib init error %d", ret);
+ size = deflateBound(&stream, rpc->len);
+ gzip_body = xmalloc(size);
+
+ stream.next_in = (unsigned char *)rpc->buf;
+ stream.avail_in = rpc->len;
+ stream.next_out = (unsigned char *)gzip_body;
+ stream.avail_out = size;
+
+ ret = deflate(&stream, Z_FINISH);
+ if (ret != Z_STREAM_END)
+ die("cannot deflate request; zlib deflate error %d", ret);
+
+ ret = deflateEnd(&stream);
+ if (ret != Z_OK)
+ die("cannot deflate request; zlib end error %d", ret);
+
+ size = stream.total_out;
+
+ headers = curl_slist_append(headers, "Content-Encoding: gzip");
+ curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body);
+ curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, size);
+
+ if (options.verbosity > 1) {
+ fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n",
+ rpc->service_name,
+ (unsigned long)rpc->len, (unsigned long)size);
+ fflush(stderr);
+ }