46     z_stream zstr;  member
60 compress_error (status, zstatus, zstr, msg)  in compress_error()  argument
63      z_stream *zstr;
72     zmsg = zstr->msg;
102 	zstatus = inflateInit (&n->zstr);
104 	zstatus = deflateInit (&n->zstr, level);
106 	compress_error (1, zstatus, &n->zstr, "compression initialization");
170     cb->zstr.avail_out = size;
171     cb->zstr.next_out = (Bytef *) data;
182 	cb->zstr.avail_in = bd->size;
183 	cb->zstr.next_in = (Bytef *) bd->bufp;
187 	    zstatus = inflate (&cb->zstr, Z_NO_FLUSH);
192 		compress_error (0, zstatus, &cb->zstr, "inflate");
195 	} while (cb->zstr.avail_in > 0
196 		 && cb->zstr.avail_out > 0);
198 	bd->size = cb->zstr.avail_in;
199 	bd->bufp = (char *) cb->zstr.next_in;
209 	sofar = size - cb->zstr.avail_out;
243     *got = size - cb->zstr.avail_out;
259     cb->zstr.avail_in = have;
260     cb->zstr.next_in = (unsigned char *) data;
262     while (cb->zstr.avail_in > 0)
267 	cb->zstr.avail_out = BUFFER_DATA_SIZE;
268 	cb->zstr.next_out = (unsigned char *) buffer;
270 	zstatus = deflate (&cb->zstr, Z_NO_FLUSH);
273 	    compress_error (0, zstatus, &cb->zstr, "deflate");
277 	if (cb->zstr.avail_out != BUFFER_DATA_SIZE)
279 			BUFFER_DATA_SIZE - cb->zstr.avail_out);
298     cb->zstr.avail_in = 0;
299     cb->zstr.next_in = NULL;
306 	cb->zstr.avail_out = BUFFER_DATA_SIZE;
307 	cb->zstr.next_out = (unsigned char *) buffer;
309 	zstatus = deflate (&cb->zstr, Z_SYNC_FLUSH);
319 	    compress_error (0, zstatus, &cb->zstr, "deflate flush");
323 	if (cb->zstr.avail_out != BUFFER_DATA_SIZE)
325 			BUFFER_DATA_SIZE - cb->zstr.avail_out);
329 	if (cb->zstr.avail_out > 0)
369     zstatus = inflateEnd (&cb->zstr);
372 	compress_error (0, zstatus, &cb->zstr, "inflateEnd");
392 	cb->zstr.avail_out = BUFFER_DATA_SIZE;
393 	cb->zstr.next_out = (unsigned char *) buffer;
395 	zstatus = deflate (&cb->zstr, Z_FINISH);
398 	    compress_error (0, zstatus, &cb->zstr, "deflate finish");
402 	if (cb->zstr.avail_out != BUFFER_DATA_SIZE)
404 			BUFFER_DATA_SIZE - cb->zstr.avail_out);
407     zstatus = deflateEnd (&cb->zstr);
410 	compress_error (0, zstatus, &cb->zstr, "deflateEnd");
454     z_stream zstr;  local
532     memset (&zstr, 0, sizeof zstr);
537     zstatus = inflateInit2 (&zstr, -15);
540 	compress_error (1, zstatus, &zstr, fullname);
546     zstr.avail_in = size - pos;
547     zstr.next_in = buf + pos;
553 	zstr.avail_out = sizeof (outbuf);
554 	zstr.next_out = outbuf;
555 	zstatus = inflate (&zstr, Z_NO_FLUSH);
558 	    compress_error (0, zstatus, &zstr, fullname);
561 	if (write (fd, outbuf, sizeof (outbuf) - zstr.avail_out) < 0)
566 	crc = crc32 (crc, outbuf, sizeof (outbuf) - zstr.avail_out);
568     zstatus = inflateEnd (&zstr);
570 	compress_error (0, zstatus, &zstr, fullname);
575     pos += zstr.total_in;
591     if (zstr.total_out != ((unsigned long)buf[pos + 4]
619     z_stream zstr;  local
647     memset (&zstr, 0, sizeof zstr);
648     zstatus = deflateInit2 (&zstr, level, Z_DEFLATED, -15, 8,
653 	compress_error (0, zstatus, &zstr, fullname);
658     zstr.total_out = 10;
659     zstr.avail_out = *size - 10;
660     zstr.next_out = *buf + 10;
676 	zstr.next_in = inbuf;
677 	zstr.avail_in = nread;
686 	    if (zstr.avail_out < 4096)
690 		assert(zstr.avail_out + zstr.total_out == *size);
691 		assert(zstr.next_out == *buf + zstr.total_out);
700 		zstr.next_out = *buf + zstr.total_out;
701 		zstr.avail_out = *size - zstr.total_out;
702 		assert(zstr.avail_out + zstr.total_out == *size);
703 		assert(zstr.next_out == *buf + zstr.total_out);
706 	    zstatus = deflate (&zstr, finish ? Z_FINISH : 0);
710 		compress_error (0, zstatus, &zstr, fullname);
711 	} while (zstr.avail_out == 0);
718     if (zstr.avail_out < 8)
722 	assert(zstr.avail_out + zstr.total_out == *size);
723 	assert(zstr.next_out == *buf + zstr.total_out);
724 	*size += 8 - zstr.avail_out;
732 	zstr.next_out = *buf + zstr.total_out;
733 	zstr.avail_out = *size - zstr.total_out;
734 	assert(zstr.avail_out + zstr.total_out == *size);
735 	assert(zstr.next_out == *buf + zstr.total_out);
737     *zstr.next_out++ = (unsigned char)(crc & 0xff);
738     *zstr.next_out++ = (unsigned char)((crc >> 8) & 0xff);
739     *zstr.next_out++ = (unsigned char)((crc >> 16) & 0xff);
740     *zstr.next_out++ = (unsigned char)((crc >> 24) & 0xff);
742     *zstr.next_out++ = (unsigned char)(zstr.total_in & 0xff);
743     *zstr.next_out++ = (unsigned char)((zstr.total_in >> 8) & 0xff);
744     *zstr.next_out++ = (unsigned char)((zstr.total_in >> 16) & 0xff);
745     *zstr.next_out++ = (unsigned char)((zstr.total_in >> 24) & 0xff);
747     zstr.total_out += 8;
748     zstr.avail_out -= 8;
749     assert(zstr.avail_out + zstr.total_out == *size);
750     assert(zstr.next_out == *buf + zstr.total_out);
752     *len = zstr.total_out;
754     zstatus = deflateEnd (&zstr);
756 	compress_error (0, zstatus, &zstr, fullname);