+ do {
+ if (PHPSTR_NOMEM == phpstr_resize_ex(&buffer, buffer.size, 0, 1)) {
+ status = Z_MEM_ERROR;
+ } else {
+ Z->avail_out = buffer.free;
+ Z->next_out = (Bytef *) buffer.data + buffer.used;
+#if 0
+ fprintf(stderr, "\n%3d: %3d PRIOR: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out);
+#endif
+ status = inflate(Z, flush);
+
+ buffer.used += buffer.free - Z->avail_out;
+ buffer.free = Z->avail_out;
+#if 0
+ fprintf(stderr, "%3d: %3d AFTER: size=%7lu,\tfree=%7lu,\tused=%7lu,\tavail_in=%7lu,\tavail_out=%7lu\n", round, status, buffer.size, buffer.free, buffer.used, Z->avail_in, Z->avail_out);
+#endif
+ HTTP_INFLATE_BUFFER_SIZE_ALIGN(buffer.size);
+ }
+ } while ((Z_BUF_ERROR == status || (Z_OK == status && Z->avail_in)) && ++round < HTTP_INFLATE_ROUNDS);
+
+ if (status == Z_OK || status == Z_STREAM_END) {
+ phpstr_shrink(&buffer);
+ phpstr_fix(&buffer);
+ *buf = buffer.data;
+ *len = buffer.used;
+ } else {
+ phpstr_dtor(&buffer);
+ }
+
+ return status;
+}
+/* }}} */
+
+/* {{{ STATUS http_encoding_deflate(int, char *, size_t, char **, size_t *) */
+PHP_HTTP_API STATUS _http_encoding_deflate(int flags, const char *data, size_t data_len, char **encoded, size_t *encoded_len ZEND_FILE_LINE_DC ZEND_FILE_LINE_ORIG_DC TSRMLS_DC)
+{
+ int status, level, wbits, strategy;
+ z_stream Z;
+
+ HTTP_DEFLATE_LEVEL_SET(flags, level);
+ HTTP_DEFLATE_WBITS_SET(flags, wbits);
+ HTTP_DEFLATE_STRATEGY_SET(flags, strategy);
+
+ memset(&Z, 0, sizeof(z_stream));
+ *encoded = NULL;
+ *encoded_len = 0;
+
+ status = deflateInit2(&Z, level, Z_DEFLATED, wbits, MAX_MEM_LEVEL, strategy);
+ if (Z_OK == status) {
+ *encoded_len = HTTP_DEFLATE_BUFFER_SIZE_GUESS(data_len);
+ *encoded = emalloc_rel(*encoded_len);
+
+ Z.next_in = (Bytef *) data;
+ Z.next_out = (Bytef *) *encoded;
+ Z.avail_in = data_len;
+ Z.avail_out = *encoded_len;
+
+ status = deflate(&Z, Z_FINISH);
+ deflateEnd(&Z);
+
+ if (Z_STREAM_END == status) {
+ /* size buffer down to actual length */
+ *encoded = erealloc_rel(*encoded, Z.total_out + 1);
+ (*encoded)[*encoded_len = Z.total_out] = '\0';
+ return SUCCESS;
+ } else {
+ STR_SET(*encoded, NULL);
+ *encoded_len = 0;
+ }
+ }