libarchive/libarchive/archive_read_support_format_cab.c

104 	} br;
2139 	ds->br.cache_buffer = 0;
2140 	ds->br.cache_avail = 0;
2218 #define lzx_br_has(br, n)	((br)->cache_avail >= n)
2220 #define lzx_br_bits(br, n)				\
2221 	(((uint32_t)((br)->cache_buffer >>		\
2222 		((br)->cache_avail - (n)))) & cache_masks[n])
2223 #define lzx_br_bits_forced(br, n)			\
2224 	(((uint32_t)((br)->cache_buffer <<		\
2225 		((n) - (br)->cache_avail))) & cache_masks[n])
2231 #define lzx_br_read_ahead_0(strm, br, n)	\
2232 	(lzx_br_has((br), (n)) || lzx_br_fillup(strm, br))
2236 #define lzx_br_read_ahead(strm, br, n)	\
2237 	(lzx_br_read_ahead_0((strm), (br), (n)) || lzx_br_has((br), (n)))
2240 #define lzx_br_consume(br, n)	((br)->cache_avail -= (n))
2241 #define lzx_br_consume_unaligned_bits(br) ((br)->cache_avail &= ~0x0f)
2243 #define lzx_br_is_unaligned(br)	((br)->cache_avail & 0x0f)
2265 lzx_br_fillup(struct lzx_stream *strm, struct lzx_br *br)
2270 	int n = CACHE_BITS - br->cache_avail;
2276 				br->cache_buffer =
2287 				br->cache_avail += 8 * 8;
2293 				br->cache_buffer =
2294 		 		   (br->cache_buffer << 48) |
2303 				br->cache_avail += 6 * 8;
2318 				br->odd = *strm->next_in++;
2320 				br->have_odd = 1;
2324 		br->cache_buffer =
2325 		   (br->cache_buffer << 16) |
2329 		br->cache_avail += 16;
2335 lzx_br_fixup(struct lzx_stream *strm, struct lzx_br *br)
2337 	int n = CACHE_BITS - br->cache_avail;
2339 	if (br->have_odd && n >= 16 && strm->avail_in > 0) {
2340 		br->cache_buffer =
2341 		   (br->cache_buffer << 16) |
2342 		   ((uint16_t)(*strm->next_in)) << 8 | br->odd;
2345 		br->cache_avail += 16;
2346 		br->have_odd = 0;
2353 	strm->ds->br.cache_avail = 0;
2354 	strm->ds->br.have_odd = 0;
2401 	lzx_br_fixup(strm, &(ds->br));
2421 	struct lzx_br *br = &(ds->br);
2427 			if (!lzx_br_read_ahead(strm, br, 1)) {
2433 			ds->translation = lzx_br_bits(br, 1);
2434 			lzx_br_consume(br, 1);
2438 				if (!lzx_br_read_ahead(strm, br, 32)) {
2444 				ds->translation_size = lzx_br_bits(br, 16);
2445 				lzx_br_consume(br, 16);
2447 				ds->translation_size |= lzx_br_bits(br, 16);
2448 				lzx_br_consume(br, 16);
2452 			if (!lzx_br_read_ahead(strm, br, 3)) {
2458 			ds->block_type = lzx_br_bits(br, 3);
2459 			lzx_br_consume(br, 3);
2471 			if (!lzx_br_read_ahead(strm, br, 24)) {
2477 			ds->block_size = lzx_br_bits(br, 8);
2478 			lzx_br_consume(br, 8);
2480 			ds->block_size |= lzx_br_bits(br, 16);
2481 			lzx_br_consume(br, 16);
2499 			if (lzx_br_is_unaligned(br))
2500 				lzx_br_consume_unaligned_bits(br);
2502 				if (lzx_br_read_ahead(strm, br, 16))
2503 					lzx_br_consume(br, 16);
2522 				if (lzx_br_has(br, 32)) {
2523 					u16 = lzx_br_bits(br, 16);
2524 					lzx_br_consume(br, 16);
2526 					u16 = lzx_br_bits(br, 16);
2527 					lzx_br_consume(br, 16);
2530 				} else if (lzx_br_has(br, 16)) {
2531 					u16 = lzx_br_bits(br, 16);
2532 					lzx_br_consume(br, 16);
2536 				if (ds->rbytes_avail < 4 && ds->br.have_odd) {
2538 					    ds->br.odd;
2539 					ds->br.have_odd = 0;
2627 			if (!lzx_br_read_ahead(strm, br, 3 * ds->at.len_size)) {
2635 				ds->at.bitlen[i] = lzx_br_bits(br, 3);
2637 				lzx_br_consume(br, 3);
2746 	struct lzx_br bre = ds->br;
2775 					ds->br = bre;
3002 	ds->br = bre;
3020 	struct lzx_br *br = &(ds->br);
3026 		if (!lzx_br_read_ahead(strm, br, 4)) {
3030 		ds->pt.bitlen[i] = lzx_br_bits(br, 4);
3032 		lzx_br_consume(br, 4);
3045 	struct lzx_br *br = &(ds->br);
3057 		if (!lzx_br_read_ahead(strm, br, ds->pt.max_bits))
3059 		rbits = lzx_br_bits(br, ds->pt.max_bits);
3063 			if (!lzx_br_read_ahead(strm, br, ds->pt.bitlen[c]+4))
3065 			lzx_br_consume(br, ds->pt.bitlen[c]);
3066 			same = lzx_br_bits(br, 4) + 4;
3069 			lzx_br_consume(br, 4);
3074 			if (!lzx_br_read_ahead(strm, br, ds->pt.bitlen[c]+5))
3076 			lzx_br_consume(br, ds->pt.bitlen[c]);
3077 			same = lzx_br_bits(br, 5) + 20;
3080 			lzx_br_consume(br, 5);
3085 			if (!lzx_br_read_ahead(strm, br,
3088 			lzx_br_consume(br, ds->pt.bitlen[c]);
3089 			same = lzx_br_bits(br, 1) + 4;
3092 			lzx_br_consume(br, 1);
3093 			rbits = lzx_br_bits(br, ds->pt.max_bits);
3095 			lzx_br_consume(br, ds->pt.bitlen[c]);
3104 			lzx_br_consume(br, ds->pt.bitlen[c]);