136 static CURLcode process_trailer(struct connectdata *conn, zlib_params *zp)  in process_trailer()  argument
138   z_stream *z = &zp->z;  in process_trailer()
140   uInt len = z->avail_in < zp->trailerlen? z->avail_in: zp->trailerlen;  in process_trailer()
145   zp->trailerlen -= len;  in process_trailer()
150   if(result || !zp->trailerlen)  in process_trailer()
151     result = exit_zlib(conn, z, &zp->zlib_init, result);  in process_trailer()
154     zp->zlib_init = ZLIB_EXTERNAL_TRAILER;  in process_trailer()
162   zlib_params *zp = (zlib_params *) &writer->params;  in inflate_stream()  local
163   z_stream *z = &zp->z;         /* zlib state structure */  in inflate_stream()
171   if(zp->zlib_init != ZLIB_INIT &&  in inflate_stream()
172      zp->zlib_init != ZLIB_INFLATING &&  in inflate_stream()
173      zp->zlib_init != ZLIB_INIT_GZIP &&  in inflate_stream()
174      zp->zlib_init != ZLIB_GZIP_INFLATING)  in inflate_stream()
175     return exit_zlib(conn, z, &zp->zlib_init, CURLE_WRITE_ERROR);  in inflate_stream()
181     return exit_zlib(conn, z, &zp->zlib_init, CURLE_OUT_OF_MEMORY);  in inflate_stream()
204         zp->zlib_init = started;      /* Data started. */  in inflate_stream()
208           exit_zlib(conn, z, &zp->zlib_init, result);  in inflate_stream()
224       result = process_trailer(conn, zp);  in inflate_stream()
229       if(zp->zlib_init == ZLIB_INIT) {  in inflate_stream()
235           zp->zlib_init = ZLIB_INFLATING;  in inflate_stream()
236           zp->trailerlen = 4; /* Tolerate up to 4 unknown trailer bytes. */  in inflate_stream()
240         zp->zlib_init = ZLIB_UNINIT;    /* inflateEnd() already called. */  in inflate_stream()
244       result = exit_zlib(conn, z, &zp->zlib_init, process_zlib_error(conn, z));  in inflate_stream()
253   if(nread && zp->zlib_init == ZLIB_INIT)  in inflate_stream()
254     zp->zlib_init = started;      /* Cannot restart anymore. */  in inflate_stream()
264   zlib_params *zp = (zlib_params *) &writer->params;  in deflate_init_writer()  local
265   z_stream *z = &zp->z;     /* zlib state structure */  in deflate_init_writer()
276   zp->zlib_init = ZLIB_INIT;  in deflate_init_writer()
284   zlib_params *zp = (zlib_params *) &writer->params;  in deflate_unencode_write()  local
285   z_stream *z = &zp->z;     /* zlib state structure */  in deflate_unencode_write()
291   if(zp->zlib_init == ZLIB_EXTERNAL_TRAILER)  in deflate_unencode_write()
292     return process_trailer(conn, zp);  in deflate_unencode_write()
301   zlib_params *zp = (zlib_params *) &writer->params;  in deflate_close_writer()  local
302   z_stream *z = &zp->z;     /* zlib state structure */  in deflate_close_writer()
304   exit_zlib(conn, z, &zp->zlib_init, CURLE_OK);  in deflate_close_writer()
321   zlib_params *zp = (zlib_params *) &writer->params;  in gzip_init_writer()  local
322   z_stream *z = &zp->z;     /* zlib state structure */  in gzip_init_writer()
336     zp->zlib_init = ZLIB_INIT_GZIP; /* Transparent gzip decompress state */  in gzip_init_writer()
343     zp->trailerlen = 8; /* A CRC-32 and a 32-bit input size (RFC 1952, 2.2) */  in gzip_init_writer()
344     zp->zlib_init = ZLIB_INIT; /* Initial call state */  in gzip_init_writer()
438   zlib_params *zp = (zlib_params *) &writer->params;  in gzip_unencode_write()  local
439   z_stream *z = &zp->z;     /* zlib state structure */  in gzip_unencode_write()
441   if(zp->zlib_init == ZLIB_INIT_GZIP) {  in gzip_unencode_write()
452   return exit_zlib(conn, z, &zp->zlib_init, CURLE_WRITE_ERROR);  in gzip_unencode_write()
465   switch(zp->zlib_init) {  in gzip_unencode_write()
476       zp->zlib_init = ZLIB_GZIP_INFLATING; /* Inflating stream state */  in gzip_unencode_write()
490         return exit_zlib(conn, z, &zp->zlib_init, CURLE_OUT_OF_MEMORY);  in gzip_unencode_write()
493       zp->zlib_init = ZLIB_GZIP_HEADER;  /* Need more gzip header data state */  in gzip_unencode_write()
499       return exit_zlib(conn, z, &zp->zlib_init, process_zlib_error(conn, z));  in gzip_unencode_write()
512       return exit_zlib(conn, z, &zp->zlib_init, CURLE_OUT_OF_MEMORY);  in gzip_unencode_write()
524       zp->zlib_init = ZLIB_GZIP_INFLATING;   /* Inflating stream state */  in gzip_unencode_write()
533       return exit_zlib(conn, z, &zp->zlib_init, process_zlib_error(conn, z));  in gzip_unencode_write()
542     return process_trailer(conn, zp);  in gzip_unencode_write()
565   zlib_params *zp = (zlib_params *) &writer->params;  in gzip_close_writer()  local
566   z_stream *z = &zp->z;     /* zlib state structure */  in gzip_close_writer()
568   exit_zlib(conn, z, &zp->zlib_init, CURLE_OK);  in gzip_close_writer()