Cross Reference: /vbox/src/libs/zlib-1.2.6/examples/gzappend.c

Lines Matching defs:strm
253 /* decompress gzip file "name", return strm with a deflate stream ready to
257 local int gzscan(char *name, z_stream *strm, int level)
281     strm->zalloc = Z_NULL;
282     strm->zfree = Z_NULL;
283     strm->opaque = Z_NULL;
284     ret = inflateInit2(strm, -15);
291     strm->avail_in = gz.left;
292     strm->next_in = gz.next;
297         if (strm->avail_in == 0) {
299             strm->avail_in = gz.left;
300             strm->next_in = gz.next;
304         strm->avail_out = DSIZE - have;
305         strm->next_out = window + have;
308         ret = inflate(strm, Z_BLOCK);
315         crc = crc32(crc, window + have, DSIZE - have - strm->avail_out);
316         if (strm->avail_out)
317             have = DSIZE - strm->avail_out;
324         if (strm->data_type & 128) {
325             if (strm->data_type & 64)
326                 left = strm->data_type & 0x1f;
328                 lastbit = strm->data_type & 0x1f;
329                 lastoff = lseek(gz.fd, 0L, SEEK_CUR) - strm->avail_in;
333     inflateEnd(strm);
334     gz.left = strm->avail_in;
335     gz.next = strm->next_in;
343     tot = strm->total_out;
366     ret = deflateInit2(strm, level, Z_DEFLATED, -15, 8, Z_DEFAULT_STRATEGY);
368     deflateSetDictionary(strm, window, have);
369     strm->adler = crc;
370     strm->total_in = tot;
374         deflatePrime(strm, 8 - left, *gz.buf);
384 /* append file "name" to gzip file gd using deflate stream strm -- if last
386 local void gztack(char *name, int gd, z_stream *strm, int last)
416         strm->avail_in = (unsigned)len;
417         strm->next_in = in;
418         if (len) strm->adler = crc32(strm->adler, in, (unsigned)len);
422             strm->avail_out = CHUNK;
423             strm->next_out = out;
424             ret = deflate(strm, last && len == 0 ? Z_FINISH : Z_NO_FLUSH);
425             left = CHUNK - strm->avail_out;
427                 len = write(gd, out + CHUNK - strm->avail_out - left, left);
431         } while (strm->avail_out == 0 && ret != Z_STREAM_END);
436         deflateEnd(strm);
437         out[0] = (unsigned char)(strm->adler);
438         out[1] = (unsigned char)(strm->adler >> 8);
439         out[2] = (unsigned char)(strm->adler >> 16);
440         out[3] = (unsigned char)(strm->adler >> 24);
441         out[4] = (unsigned char)(strm->total_in);
442         out[5] = (unsigned char)(strm->total_in >> 8);
443         out[6] = (unsigned char)(strm->total_in >> 16);
444         out[7] = (unsigned char)(strm->total_in >> 24);
467     z_stream strm;
490     gd = gzscan(*argv++, &strm, level);
494         gztack(NULL, gd, &strm, 1);
497             gztack(*argv, gd, &strm, argv[1] == NULL);