286 static void dict_reset(struct dictionary *dict, struct xz_buf *b)  in dict_reset()  argument
289 		dict->buf = b->out + b->out_pos;  in dict_reset()
290 		dict->end = b->out_size - b->out_pos;  in dict_reset()
374 static void dict_uncompressed(struct dictionary *dict, struct xz_buf *b,  in dict_uncompressed()  argument
379 	while (*left > 0 && b->in_pos < b->in_size  in dict_uncompressed()
380 			&& b->out_pos < b->out_size) {  in dict_uncompressed()
381 		copy_size = min(b->in_size - b->in_pos,  in dict_uncompressed()
382 				b->out_size - b->out_pos);  in dict_uncompressed()
397 		memmove(dict->buf + dict->pos, b->in + b->in_pos, copy_size);  in dict_uncompressed()
411 			memmove(b->out + b->out_pos, b->in + b->in_pos,  in dict_uncompressed()
417 		b->out_pos += copy_size;  in dict_uncompressed()
418 		b->in_pos += copy_size;  in dict_uncompressed()
427 static uint32_t dict_flush(struct dictionary *dict, struct xz_buf *b)  in dict_flush()  argument
441 		memcpy(b->out + b->out_pos, dict->buf + dict->start,  in dict_flush()
446 	b->out_pos += copy_size;  in dict_flush()
466 static bool rc_read_init(struct rc_dec *rc, struct xz_buf *b)  in rc_read_init()  argument
469 		if (b->in_pos == b->in_size)  in rc_read_init()
472 		rc->code = (rc->code << 8) + b->in[b->in_pos++];  in rc_read_init()
863 static bool lzma2_lzma(struct xz_dec_lzma2 *s, struct xz_buf *b)  in lzma2_lzma()  argument
868 	in_avail = b->in_size - b->in_pos;  in lzma2_lzma()
876 		memcpy(s->temp.buf + s->temp.size, b->in + b->in_pos, tmp);  in lzma2_lzma()
885 			b->in_pos += tmp;  in lzma2_lzma()
906 		b->in_pos += s->rc.in_pos - s->temp.size;  in lzma2_lzma()
910 	in_avail = b->in_size - b->in_pos;  in lzma2_lzma()
912 		s->rc.in = b->in;  in lzma2_lzma()
913 		s->rc.in_pos = b->in_pos;  in lzma2_lzma()
916 			s->rc.in_limit = b->in_pos + s->lzma2.compressed;  in lzma2_lzma()
918 			s->rc.in_limit = b->in_size - LZMA_IN_REQUIRED;  in lzma2_lzma()
923 		in_avail = s->rc.in_pos - b->in_pos;  in lzma2_lzma()
928 		b->in_pos = s->rc.in_pos;  in lzma2_lzma()
931 	in_avail = b->in_size - b->in_pos;  in lzma2_lzma()
936 		memcpy(s->temp.buf, b->in + b->in_pos, in_avail);  in lzma2_lzma()
938 		b->in_pos += in_avail;  in lzma2_lzma()
949 				       struct xz_buf *b)  in xz_dec_lzma2_run()  argument
953 	while (b->in_pos < b->in_size || s->lzma2.sequence == SEQ_LZMA_RUN) {  in xz_dec_lzma2_run()
987 			tmp = b->in[b->in_pos++];  in xz_dec_lzma2_run()
995 				dict_reset(&s->dict, b);  in xz_dec_lzma2_run()
1035 					+= (uint32_t)b->in[b->in_pos++] << 8;  in xz_dec_lzma2_run()
1041 					+= (uint32_t)b->in[b->in_pos++] + 1;  in xz_dec_lzma2_run()
1047 					= (uint32_t)b->in[b->in_pos++] << 8;  in xz_dec_lzma2_run()
1053 					+= (uint32_t)b->in[b->in_pos++] + 1;  in xz_dec_lzma2_run()
1058 			if (!lzma_props(s, b->in[b->in_pos++]))  in xz_dec_lzma2_run()
1069 			if (!rc_read_init(&s->rc, b))  in xz_dec_lzma2_run()
1088 					b->out_size - b->out_pos,  in xz_dec_lzma2_run()
1090 			if (!lzma2_lzma(s, b))  in xz_dec_lzma2_run()
1093 			s->lzma2.uncompressed -= dict_flush(&s->dict, b);  in xz_dec_lzma2_run()
1103 			} else if (b->out_pos == b->out_size  in xz_dec_lzma2_run()
1104 					|| (b->in_pos == b->in_size  in xz_dec_lzma2_run()
1113 			dict_uncompressed(&s->dict, b, &s->lzma2.compressed);  in xz_dec_lzma2_run()