2 Copyright (c) 2012 Frank Lahm <franklahm@gmail.com>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
17 #endif /* HAVE_CONFIG_H */
27 #include <atalk/errchk.h>
28 #include <atalk/util.h>
29 #include <atalk/logger.h>
30 #include <atalk/talloc.h>
31 #include <atalk/dalloc.h>
32 #include <atalk/byteorder.h>
33 #include <atalk/netatalk_conf.h>
34 #include <atalk/volume.h>
35 #include <atalk/dsi.h>
36 #include <atalk/spotlight.h>
38 #define MAX_SLQ_DAT (DSI_DATASIZ - 64)
39 #define MAX_SLQ_TOC 8192
41 /**************************************************************************************************
42 * RPC data marshalling and unmarshalling
43 **************************************************************************************************/
45 /* Spotlight epoch is UNIX epoch minus SPOTLIGHT_TIME_DELTA */
46 #define SPOTLIGHT_TIME_DELTA INT64_C(280878921600U)
48 #define SQ_TYPE_NULL 0x0000
49 #define SQ_TYPE_COMPLEX 0x0200
50 #define SQ_TYPE_INT64 0x8400
51 #define SQ_TYPE_BOOL 0x0100
52 #define SQ_TYPE_FLOAT 0x8500
53 #define SQ_TYPE_DATA 0x0700
54 #define SQ_TYPE_CNIDS 0x8700
55 #define SQ_TYPE_UUID 0x0e00
56 #define SQ_TYPE_DATE 0x8600
57 #define SQ_TYPE_TOC 0x8800
59 #define SQ_CPX_TYPE_ARRAY 0x0a00
60 #define SQ_CPX_TYPE_STRING 0x0c00
61 #define SQ_CPX_TYPE_UTF16_STRING 0x1c00
62 #define SQ_CPX_TYPE_DICT 0x0d00
63 #define SQ_CPX_TYPE_CNIDS 0x1a00
64 #define SQ_CPX_TYPE_FILEMETA 0x1b00
66 #define SUBQ_SAFETY_LIM 20
68 /* Forward declarations */
69 static int sl_pack_loop(DALLOC_CTX *query, char *buf, int offset, char *toc_buf, int *toc_idx);
70 static int sl_unpack_loop(DALLOC_CTX *query, const char *buf, int offset, uint count, const uint toc_offset, const uint encoding);
72 /**************************************************************************************************
73 * Wrapper functions for the *VAL macros with bound checking
74 **************************************************************************************************/
76 static int sivalc(char *buf, off_t off, off_t maxoff, uint32_t val)
78 if (off + sizeof(val) >= maxoff) {
79 LOG(log_error, logtype_sl, "sivalc: off: %zd, maxoff: %zd", off, maxoff);
86 static int slvalc(char *buf, off_t off, off_t maxoff, uint64_t val)
88 if (off + sizeof(val) >= maxoff) {
89 LOG(log_error, logtype_sl, "slvalc: off: %zd, maxoff: %zd", off, maxoff);
97 * Returns the UTF-16 string encoding, by checking the 2-byte byte order mark.
98 * If there is no byte order mark, -1 is returned.
100 static uint spotlight_get_utf16_string_encoding(const char *buf, int offset, int query_length, uint encoding) {
103 /* check for byte order mark */
104 utf16_encoding = SL_ENC_BIG_ENDIAN;
105 if (query_length >= 2) {
106 uint16_t byte_order_mark;
107 if (encoding == SL_ENC_LITTLE_ENDIAN)
108 byte_order_mark = SVAL(buf, offset);
110 byte_order_mark = RSVAL(buf, offset);
112 if (byte_order_mark == 0xFFFE) {
113 utf16_encoding = SL_ENC_BIG_ENDIAN | SL_ENC_UTF_16;
115 else if (byte_order_mark == 0xFEFF) {
116 utf16_encoding = SL_ENC_LITTLE_ENDIAN | SL_ENC_UTF_16;
120 return utf16_encoding;
123 /**************************************************************************************************
124 * marshalling functions
125 **************************************************************************************************/
127 #define SL_OFFSET_DELTA 16
129 static uint64_t sl_pack_tag(uint16_t type, uint16_t size_or_count, uint32_t val)
131 uint64_t tag = ((uint64_t)val << 32) | ((uint64_t)type << 16) | size_or_count;
135 static int sl_pack_float(double d, char *buf, int offset)
144 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_FLOAT, 2, 1)) );
145 EC_ZERO( slvalc(buf, offset + 8, MAX_SLQ_DAT, ieee_fp_union.w) );
150 return offset + 2 * sizeof(uint64_t);
153 static int sl_pack_uint64(uint64_t u, char *buf, int offset)
157 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_INT64, 2, 1)) );
158 EC_ZERO( slvalc(buf, offset + 8, MAX_SLQ_DAT, u) );
163 return offset + 2 * sizeof(uint64_t);
166 static int sl_pack_bool(sl_bool_t bl, char *buf, int offset)
170 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_BOOL, 1, bl ? 1 : 0)) );
175 return offset + sizeof(uint64_t);
178 static int sl_pack_nil(char *buf, int offset)
182 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_NULL, 1, 1)) );
187 return offset + sizeof(uint64_t);
190 static int sl_pack_date(sl_time_t t, char *buf, int offset)
195 data = (t.tv_sec + SPOTLIGHT_TIME_DELTA) << 24;
197 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_DATE, 2, 1)) );
198 EC_ZERO( slvalc(buf, offset + 8, MAX_SLQ_DAT, data) );
203 return offset + 2 * sizeof(uint64_t);
206 static int sl_pack_uuid(sl_uuid_t *uuid, char *buf, int offset)
210 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_UUID, 3, 1)) );
211 if (offset + 8 + 16 >= MAX_SLQ_DAT)
213 memcpy(buf + offset + 8, uuid, 16);
218 return offset + sizeof(uint64_t) + 16;
221 static int sl_pack_CNID(sl_cnids_t *cnids, char *buf, int offset, char *toc_buf, int *toc_idx)
225 int cnid_count = talloc_array_length(cnids->ca_cnids->dd_talloc_array);
228 EC_ZERO( slvalc(toc_buf, *toc_idx * 8, MAX_SLQ_TOC, sl_pack_tag(SQ_CPX_TYPE_CNIDS, (offset + SL_OFFSET_DELTA) / 8, 0)) );
229 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_COMPLEX, 1, *toc_idx + 1)) );
233 len = cnid_count + 1;
237 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_CNIDS, len, 8 /* unknown meaning, but always 8 */)) );
240 if (cnid_count > 0) {
241 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(0x0add, cnid_count, cnids->ca_context)) );
244 for (int i = 0; i < cnid_count; i++) {
245 memcpy(&id, cnids->ca_cnids->dd_talloc_array[i], sizeof(uint64_t));
246 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, id) );
257 static int sl_pack_array(sl_array_t *array, char *buf, int offset, char *toc_buf, int *toc_idx)
260 int count = talloc_array_length(array->dd_talloc_array);
261 int octets = (offset + SL_OFFSET_DELTA) / 8;
263 EC_ZERO( slvalc(toc_buf, *toc_idx * 8, MAX_SLQ_TOC, sl_pack_tag(SQ_CPX_TYPE_ARRAY, octets, count)) );
264 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_COMPLEX, 1, *toc_idx + 1)) );
268 EC_NEG1( offset = sl_pack_loop(array, buf, offset, toc_buf, toc_idx) );
276 static int sl_pack_dict(sl_array_t *dict, char *buf, int offset, char *toc_buf, int *toc_idx)
280 EC_ZERO( slvalc(toc_buf,
283 sl_pack_tag(SQ_CPX_TYPE_DICT,
284 (offset + SL_OFFSET_DELTA) / 8,
285 talloc_array_length(dict->dd_talloc_array))) );
286 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_COMPLEX, 1, *toc_idx + 1)) );
290 EC_NEG1( offset = sl_pack_loop(dict, buf, offset, toc_buf, toc_idx) );
298 static int sl_pack_filemeta(sl_filemeta_t *fm, char *buf, int offset, char *toc_buf, int *toc_idx)
301 int fmlen; /* lenght of filemeta */
302 int saveoff = offset;
304 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_COMPLEX, 1, *toc_idx + 1)) );
307 EC_NEG1( fmlen = sl_pack(fm, buf + offset) );
309 /* Check for empty filemeta array, if it's only 40 bytes, it's only the header but no content */
310 LOG(log_debug, logtype_sl, "fmlen: %d", fmlen);
316 EC_ZERO( slvalc(buf, saveoff + 8, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_DATA, (fmlen / 8) + 1, 8 /* unknown meaning, but always 8 */)) );
318 EC_ZERO( slvalc(toc_buf, *toc_idx * 8, MAX_SLQ_TOC, sl_pack_tag(SQ_CPX_TYPE_FILEMETA, (saveoff + SL_OFFSET_DELTA) / 8, fmlen / 8)) );
327 static int sl_pack_string(char *s, char *buf, int offset, char *toc_buf, int *toc_idx)
330 int len, octets, used_in_last_octet;
333 octets = (len / 8) + (len & 7 ? 1 : 0);
334 used_in_last_octet = 8 - (octets * 8 - len);
336 EC_ZERO( slvalc(toc_buf, *toc_idx * 8, MAX_SLQ_TOC, sl_pack_tag(SQ_CPX_TYPE_STRING, (offset + SL_OFFSET_DELTA) / 8, used_in_last_octet)) );
337 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_COMPLEX, 1, *toc_idx + 1)) );
341 EC_ZERO( slvalc(buf, offset, MAX_SLQ_DAT, sl_pack_tag(SQ_TYPE_DATA, octets + 1, used_in_last_octet)) );
344 if (offset + octets * 8 > MAX_SLQ_DAT)
346 memset(buf + offset, 0, octets * 8);
347 strncpy(buf + offset, s, len);
348 offset += octets * 8;
356 static int sl_pack_loop(DALLOC_CTX *query, char *buf, int offset, char *toc_buf, int *toc_idx)
361 for (int n = 0; n < talloc_array_length(query->dd_talloc_array); n++) {
363 type = talloc_get_name(query->dd_talloc_array[n]);
365 if (STRCMP(type, ==, "sl_array_t")) {
366 EC_NEG1( offset = sl_pack_array(query->dd_talloc_array[n], buf, offset, toc_buf, toc_idx) );
367 } else if (STRCMP(type, ==, "sl_dict_t")) {
368 EC_NEG1( offset = sl_pack_dict(query->dd_talloc_array[n], buf, offset, toc_buf, toc_idx) );
369 } else if (STRCMP(type, ==, "sl_filemeta_t")) {
370 EC_NEG1( offset = sl_pack_filemeta(query->dd_talloc_array[n], buf, offset, toc_buf, toc_idx) );
371 } else if (STRCMP(type, ==, "uint64_t")) {
373 memcpy(&i, query->dd_talloc_array[n], sizeof(uint64_t));
374 EC_NEG1( offset = sl_pack_uint64(i, buf, offset) );
375 } else if (STRCMP(type, ==, "char *")) {
376 EC_NEG1( offset = sl_pack_string(query->dd_talloc_array[n], buf, offset, toc_buf, toc_idx) );
377 } else if (STRCMP(type, ==, "sl_bool_t")) {
379 memcpy(&bl, query->dd_talloc_array[n], sizeof(sl_bool_t));
380 EC_NEG1( offset = sl_pack_bool(bl, buf, offset) );
381 } else if (STRCMP(type, ==, "double")) {
383 memcpy(&d, query->dd_talloc_array[n], sizeof(double));
384 EC_NEG1( offset = sl_pack_float(d, buf, offset) );
385 } else if (STRCMP(type, ==, "sl_nil_t")) {
386 EC_NEG1( offset = sl_pack_nil(buf, offset) );
387 } else if (STRCMP(type, ==, "sl_time_t")) {
389 memcpy(&t, query->dd_talloc_array[n], sizeof(sl_time_t));
390 EC_NEG1( offset = sl_pack_date(t, buf, offset) );
391 } else if (STRCMP(type, ==, "sl_uuid_t")) {
392 EC_NEG1( offset = sl_pack_uuid(query->dd_talloc_array[n], buf, offset) );
393 } else if (STRCMP(type, ==, "sl_cnids_t")) {
394 EC_NEG1( offset = sl_pack_CNID(query->dd_talloc_array[n], buf, offset, toc_buf, toc_idx) );
404 /**************************************************************************************************
405 * unmarshalling functions
406 **************************************************************************************************/
408 static uint64_t sl_unpack_uint64(const char *buf, int offset, uint encoding)
410 if (encoding == SL_ENC_LITTLE_ENDIAN)
411 return LVAL(buf, offset);
413 return RLVAL(buf, offset);
416 static int sl_unpack_ints(DALLOC_CTX *query, const char *buf, int offset, uint encoding)
419 uint64_t query_data64;
421 query_data64 = sl_unpack_uint64(buf, offset, encoding);
422 count = query_data64 >> 32;
426 while (i++ < count) {
427 query_data64 = sl_unpack_uint64(buf, offset, encoding);
428 dalloc_add_copy(query, &query_data64, uint64_t);
435 static int sl_unpack_date(DALLOC_CTX *query, const char *buf, int offset, uint encoding)
438 uint64_t query_data64;
441 query_data64 = sl_unpack_uint64(buf, offset, encoding);
442 count = query_data64 >> 32;
446 while (i++ < count) {
447 query_data64 = sl_unpack_uint64(buf, offset, encoding) >> 24;
448 t.tv_sec = query_data64 - SPOTLIGHT_TIME_DELTA;
450 dalloc_add_copy(query, &t, sl_time_t);
457 static int sl_unpack_uuid(DALLOC_CTX *query, const char *buf, int offset, uint encoding)
460 uint64_t query_data64;
462 query_data64 = sl_unpack_uint64(buf, offset, encoding);
463 count = query_data64 >> 32;
467 while (i++ < count) {
468 memcpy(uuid.sl_uuid, buf + offset, 16);
469 dalloc_add_copy(query, &uuid, sl_uuid_t);
476 static int sl_unpack_floats(DALLOC_CTX *query, const char *buf, int offset, uint encoding)
479 uint64_t query_data64;
486 query_data64 = sl_unpack_uint64(buf, offset, encoding);
487 count = query_data64 >> 32;
491 while (i++ < count) {
492 if (encoding == SL_ENC_LITTLE_ENDIAN) {
493 #ifdef WORDS_BIGENDIAN
494 ieee_fp_union.w[0] = IVAL(buf, offset + 4);
495 ieee_fp_union.w[1] = IVAL(buf, offset);
497 ieee_fp_union.w[0] = IVAL(buf, offset);
498 ieee_fp_union.w[1] = IVAL(buf, offset + 4);
501 #ifdef WORDS_BIGENDIAN
502 ieee_fp_union.w[0] = RIVAL(buf, offset);
503 ieee_fp_union.w[1] = RIVAL(buf, offset + 4);
505 ieee_fp_union.w[0] = RIVAL(buf, offset + 4);
506 ieee_fp_union.w[1] = RIVAL(buf, offset);
509 dalloc_add_copy(query, &ieee_fp_union.d, double);
516 static int sl_unpack_CNID(DALLOC_CTX *query, const char *buf, int offset, int length, uint encoding)
520 uint64_t query_data64;
523 EC_NULL( cnids = talloc_zero(query, sl_cnids_t) );
524 EC_NULL( cnids->ca_cnids = talloc_zero(cnids, DALLOC_CTX) );
527 /* that's permitted, it's an empty array */
530 query_data64 = sl_unpack_uint64(buf, offset, encoding);
531 count = query_data64 & 0xffff;
533 cnids->ca_unkn1 = (query_data64 & 0xffff0000) >> 16;
534 cnids->ca_context = query_data64 >> 32;
539 query_data64 = sl_unpack_uint64(buf, offset, encoding);
540 dalloc_add_copy(cnids->ca_cnids, &query_data64, uint64_t);
544 dalloc_add(query, cnids, sl_cnids_t);
550 static const char *spotlight_get_qtype_string(uint64_t query_type)
552 switch (query_type) {
555 case SQ_TYPE_COMPLEX:
572 static const char *spotlight_get_cpx_qtype_string(uint64_t cpx_query_type)
574 switch (cpx_query_type) {
575 case SQ_CPX_TYPE_ARRAY:
577 case SQ_CPX_TYPE_STRING:
579 case SQ_CPX_TYPE_UTF16_STRING:
580 return "utf-16 string";
581 case SQ_CPX_TYPE_DICT:
583 case SQ_CPX_TYPE_CNIDS:
585 case SQ_CPX_TYPE_FILEMETA:
592 static int sl_unpack_cpx(DALLOC_CTX *query,
596 uint cpx_query_count,
597 const uint toc_offset,
602 int roffset = offset;
603 uint64_t query_data64;
604 uint unicode_encoding;
607 int qlen, used_in_last_block, slen;
608 sl_array_t *sl_array;
610 sl_filemeta_t *sl_fm;
612 switch (cpx_query_type) {
613 case SQ_CPX_TYPE_ARRAY:
614 sl_array = talloc_zero(query, sl_array_t);
615 EC_NEG1_LOG( roffset = sl_unpack_loop(sl_array, buf, offset, cpx_query_count, toc_offset, encoding) );
616 dalloc_add(query, sl_array, sl_array_t);
619 case SQ_CPX_TYPE_DICT:
620 sl_dict = talloc_zero(query, sl_dict_t);
621 EC_NEG1_LOG( roffset = sl_unpack_loop(sl_dict, buf, offset, cpx_query_count, toc_offset, encoding) );
622 dalloc_add(query, sl_dict, sl_dict_t);
625 case SQ_CPX_TYPE_STRING:
626 case SQ_CPX_TYPE_UTF16_STRING:
627 query_data64 = sl_unpack_uint64(buf, offset, encoding);
628 qlen = (query_data64 & 0xffff) * 8;
629 used_in_last_block = query_data64 >> 32;
630 slen = qlen - 8 + used_in_last_block;
632 if (cpx_query_type == SQ_CPX_TYPE_STRING) {
633 p = dalloc_strndup(query, buf + offset + 8, slen);
635 unicode_encoding = spotlight_get_utf16_string_encoding(buf, offset + 8, slen, encoding);
636 mark_exists = (unicode_encoding & SL_ENC_UTF_16);
637 unicode_encoding &= ~SL_ENC_UTF_16;
638 EC_NEG1( convert_string_allocate(CH_UCS2, CH_UTF8, buf + offset + (mark_exists ? 18 : 16), slen, &p) );
641 dalloc_add(query, p, char *);
645 case SQ_CPX_TYPE_FILEMETA:
646 query_data64 = sl_unpack_uint64(buf, offset, encoding);
647 qlen = (query_data64 & 0xffff) * 8;
649 EC_FAIL_LOG("SQ_CPX_TYPE_FILEMETA: query_length <= 8: %d", qlen);
651 sl_fm = talloc_zero(query, sl_filemeta_t);
652 EC_NEG1_LOG( sl_unpack(sl_fm, buf + offset + 8) );
653 dalloc_add(query, sl_fm, sl_filemeta_t);
658 case SQ_CPX_TYPE_CNIDS:
659 query_data64 = sl_unpack_uint64(buf, offset, encoding);
660 qlen = (query_data64 & 0xffff) * 8;
661 EC_NEG1_LOG( sl_unpack_CNID(query, buf, offset + 8, qlen, encoding) );
675 static int sl_unpack_loop(DALLOC_CTX *query,
679 const uint toc_offset,
683 int i, toc_index, query_length;
685 uint64_t query_data64, query_type;
686 uint cpx_query_type, cpx_query_count;
690 while (count > 0 && (offset < toc_offset)) {
691 query_data64 = sl_unpack_uint64(buf, offset, encoding);
692 query_length = (query_data64 & 0xffff) * 8;
693 query_type = (query_data64 & 0xffff0000) >> 16;
694 if (query_length == 0)
697 switch (query_type) {
698 case SQ_TYPE_COMPLEX:
699 toc_index = (query_data64 >> 32) - 1;
700 query_data64 = sl_unpack_uint64(buf, toc_offset + toc_index * 8, encoding);
701 cpx_query_type = (query_data64 & 0xffff0000) >> 16;
702 cpx_query_count = query_data64 >> 32;
704 EC_NEG1_LOG( offset = sl_unpack_cpx(query, buf, offset + 8, cpx_query_type, cpx_query_count, toc_offset, encoding));
708 subcount = query_data64 >> 32;
712 for (i = 0; i < subcount; i++)
713 dalloc_add_copy(query, &nil, sl_nil_t);
714 offset += query_length;
718 b = query_data64 >> 32;
719 dalloc_add_copy(query, &b, sl_bool_t);
720 offset += query_length;
724 EC_NEG1_LOG( subcount = sl_unpack_ints(query, buf, offset, encoding) );
725 offset += query_length;
729 EC_NEG1_LOG( subcount = sl_unpack_uuid(query, buf, offset, encoding) );
730 offset += query_length;
734 EC_NEG1_LOG( subcount = sl_unpack_floats(query, buf, offset, encoding) );
735 offset += query_length;
739 EC_NEG1_LOG( subcount = sl_unpack_date(query, buf, offset, encoding) );
740 offset += query_length;
755 /**************************************************************************************************
756 * Global functions for packing und unpacking
757 **************************************************************************************************/
759 int sl_pack(DALLOC_CTX *query, char *buf)
762 char toc_buf[MAX_SLQ_TOC];
766 memcpy(buf, "432130dm", 8);
767 EC_NEG1_LOG( len = sl_pack_loop(query, buf + 16, 0, toc_buf + 8, &toc_index) );
768 EC_ZERO( sivalc(buf, 8, MAX_SLQ_DAT, len / 8 + 1 + toc_index + 1) );
769 EC_ZERO( sivalc(buf, 12, MAX_SLQ_DAT, len / 8 + 1) );
771 EC_ZERO( slvalc(toc_buf, 0, MAX_SLQ_TOC, sl_pack_tag(SQ_TYPE_TOC, toc_index + 1, 0)) );
772 if ((16 + len + ((toc_index + 1 ) * 8)) >= MAX_SLQ_DAT)
774 memcpy(buf + 16 + len, toc_buf, (toc_index + 1 ) * 8);
775 len += 16 + (toc_index + 1 ) * 8;
783 int sl_unpack(DALLOC_CTX *query, const char *buf)
786 int encoding, i, toc_entries;
787 uint64_t toc_offset, tquerylen, toc_entry;
789 if (strncmp(buf, "md031234", 8) == 0)
790 encoding = SL_ENC_BIG_ENDIAN;
792 encoding = SL_ENC_LITTLE_ENDIAN;
796 toc_offset = ((sl_unpack_uint64(buf, 0, encoding) >> 32) - 1 ) * 8;
797 if (toc_offset < 0 || (toc_offset > 65000)) {
803 toc_entries = (int)(sl_unpack_uint64(buf, toc_offset, encoding) & 0xffff);
805 EC_NEG1( sl_unpack_loop(query, buf, 0, 1, toc_offset + 8, encoding) );