44 #define CHECK_ERR(err, msg) { \  argument
45     if (err != Z_OK) { \
46         fprintf(stderr, "%s error: %d\n", msg, err); \
117     int err;  local
120     err = compress(compr, &comprLen, (const Bytef*)hello, len);
121     CHECK_ERR(err, "compress");
125     err = uncompress(uncompr, &uncomprLen, compr, comprLen);
126     CHECK_ERR(err, "uncompress");
147     int err;
159         fprintf(stderr, "gzputs err: %s\n", gzerror(file, &err));
163         fprintf(stderr, "gzprintf err: %s\n", gzerror(file, &err));
177         fprintf(stderr, "gzread err: %s\n", gzerror(file, &err));
206         fprintf(stderr, "gzgets err after gzseek: %s\n", gzerror(file, &err));
230     int err;  local
237     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
238     CHECK_ERR(err, "deflateInit");
245         err = deflate(&c_stream, Z_NO_FLUSH);
246         CHECK_ERR(err, "deflate");
251         err = deflate(&c_stream, Z_FINISH);
252         if (err == Z_STREAM_END) break;
253         CHECK_ERR(err, "deflate");
256     err = deflateEnd(&c_stream);
257     CHECK_ERR(err, "deflateEnd");
267     int err;  local
280     err = inflateInit(&d_stream);
281     CHECK_ERR(err, "inflateInit");
285         err = inflate(&d_stream, Z_NO_FLUSH);
286         if (err == Z_STREAM_END) break;
287         CHECK_ERR(err, "inflate");
290     err = inflateEnd(&d_stream);
291     CHECK_ERR(err, "inflateEnd");
309     int err;  local
315     err = deflateInit(&c_stream, Z_BEST_SPEED);
316     CHECK_ERR(err, "deflateInit");
326     err = deflate(&c_stream, Z_NO_FLUSH);
327     CHECK_ERR(err, "deflate");
337     err = deflate(&c_stream, Z_NO_FLUSH);
338     CHECK_ERR(err, "deflate");
344     err = deflate(&c_stream, Z_NO_FLUSH);
345     CHECK_ERR(err, "deflate");
347     err = deflate(&c_stream, Z_FINISH);
348     if (err != Z_STREAM_END) {
352     err = deflateEnd(&c_stream);
353     CHECK_ERR(err, "deflateEnd");
363     int err;  local
375     err = inflateInit(&d_stream);
376     CHECK_ERR(err, "inflateInit");
381         err = inflate(&d_stream, Z_NO_FLUSH);
382         if (err == Z_STREAM_END) break;
383         CHECK_ERR(err, "large inflate");
386     err = inflateEnd(&d_stream);
387     CHECK_ERR(err, "inflateEnd");
405     int err;  local
412     err = deflateInit(&c_stream, Z_DEFAULT_COMPRESSION);
413     CHECK_ERR(err, "deflateInit");
419     err = deflate(&c_stream, Z_FULL_FLUSH);
420     CHECK_ERR(err, "deflate");
425     err = deflate(&c_stream, Z_FINISH);
426     if (err != Z_STREAM_END) {
427         CHECK_ERR(err, "deflate");
429     err = deflateEnd(&c_stream);
430     CHECK_ERR(err, "deflateEnd");
442     int err;  local
454     err = inflateInit(&d_stream);
455     CHECK_ERR(err, "inflateInit");
461     CHECK_ERR(err, "inflate");
464     err = inflateSync(&d_stream);           /* but skip the damaged part */
465     CHECK_ERR(err, "inflateSync");
467     err = inflate(&d_stream, Z_FINISH);
468     if (err != Z_DATA_ERROR) {
473     err = inflateEnd(&d_stream);
474     CHECK_ERR(err, "inflateEnd");
487     int err;  local
493     err = deflateInit(&c_stream, Z_BEST_COMPRESSION);
494     CHECK_ERR(err, "deflateInit");
496     err = deflateSetDictionary(&c_stream,
498     CHECK_ERR(err, "deflateSetDictionary");
507     err = deflate(&c_stream, Z_FINISH);
508     if (err != Z_STREAM_END) {
512     err = deflateEnd(&c_stream);
513     CHECK_ERR(err, "deflateEnd");
523     int err;  local
535     err = inflateInit(&d_stream);
536     CHECK_ERR(err, "inflateInit");
542         err = inflate(&d_stream, Z_NO_FLUSH);
543         if (err == Z_STREAM_END) break;
544         if (err == Z_NEED_DICT) {
549             err = inflateSetDictionary(&d_stream, (const Bytef*)dictionary,
552         CHECK_ERR(err, "inflate with dict");
555     err = inflateEnd(&d_stream);
556     CHECK_ERR(err, "inflateEnd");