source: vendor/3.6.9/source3/registry/reg_parse.c

Last change on this file was 746, checked in by Silvan Scherrer, 13 years ago

Samba Server: updated vendor to 3.6.9
File size: 20.4 KB
Line 
1/*
2 * Samba Unix/Linux SMB client library
3 *
4 * Copyright (C) Gregor Beck 2010
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20/**
21 * @brief Parser for dot.reg files
22 * @file reg_parse.c
23 * @author Gregor Beck <gb@sernet.de>
24 * @date Jun 2010
25 *
26 */
27
28#include "includes.h"
29#include "system/filesys.h"
30#include "cbuf.h"
31#include "srprs.h"
32#include "reg_parse_internal.h"
33#include "reg_parse.h"
34#include "reg_format.h"
35
36#include <stdio.h>
37#include <unistd.h>
38#include <wchar.h>
39#include <talloc.h>
40#include <stdbool.h>
41#include <string.h>
42#include <sys/types.h>
43#include <regex.h>
44#include <assert.h>
45#include <stdint.h>
46
47enum reg_parse_state {
48 STATE_DEFAULT,
49 STATE_KEY_OPEN,
50 STATE_VAL_HEX_CONT,
51 STATE_VAL_SZ_CONT
52};
53
54struct reg_parse {
55 struct reg_format_callback reg_format_callback;
56 cbuf* key;
57 cbuf* valname;
58 uint32_t valtype;
59 cbuf* valblob;
60 cbuf* tmp;
61 struct reg_parse_callback call;
62 int ret;
63 int linenum;
64 enum reg_parse_state state;
65 struct reg_parse_options* opt;
66 smb_iconv_t str2UTF16;
67 unsigned flags;
68};
69
70/**
71 * @defgroup action Action
72 * @{
73 */
74static bool act_key(struct reg_parse* p, cbuf* keyname, bool del)
75{
76 const char* name = cbuf_gets(keyname, 0);
77 cbuf_swap(p->key, keyname);
78
79 assert(p->state == STATE_DEFAULT || p->state == STATE_KEY_OPEN);
80 p->state = del ? STATE_DEFAULT : STATE_KEY_OPEN;
81
82 assert(p->call.key);
83 p->ret = p->call.key(p->call.data, &name, 1, del);
84 return p->ret >= 0;
85}
86
87static bool value_callback(struct reg_parse* p)
88{
89 const char* name = cbuf_gets(p->valname,0);
90 const uint8_t* val = (const uint8_t*)cbuf_gets(p->valblob,0);
91 size_t len = cbuf_getpos(p->valblob);
92
93 assert(p->call.val);
94 p->ret = p->call.val(p->call.data, name, p->valtype, val, len);
95 return p->ret >= 0;
96}
97
98static bool act_val_hex(struct reg_parse* p, cbuf* value, bool cont)
99{
100 cbuf_swap(p->valblob, value);
101 assert((p->state == STATE_KEY_OPEN) || (p->state == STATE_VAL_HEX_CONT));
102
103 if (cont) {
104 p->state = STATE_VAL_HEX_CONT;
105 } else {
106 p->state = STATE_KEY_OPEN;
107
108 switch (p->valtype) {
109 case REG_EXPAND_SZ:
110 case REG_MULTI_SZ:
111 if (p->str2UTF16 != NULL) {
112 char* dst = NULL;
113 const char* src = cbuf_gets(p->valblob, 0);
114 const size_t slen = cbuf_getpos(p->valblob);
115 size_t dlen = iconvert_talloc(p,
116 p->str2UTF16,
117 src, slen,
118 &dst);
119 if (dlen != -1) {
120 cbuf_swapptr(p->valblob, &dst, dlen);
121 } else {
122 DEBUG(0, ("iconvert_talloc failed\n"));
123 }
124 talloc_free(dst);
125 }
126 default:
127 break;
128 }
129 return value_callback(p);
130 }
131 return true;
132}
133
134static bool act_val_dw(struct reg_parse* p, uint32_t val)
135{
136 assert(p->valtype == REG_DWORD);
137 assert(p->state == STATE_KEY_OPEN);
138
139 cbuf_clear(p->valblob);
140
141 if (cbuf_putdw(p->valblob, val) < 0) {
142 return false;
143 }
144 return value_callback(p);
145}
146
147static bool act_val_sz(struct reg_parse* p, cbuf* value, bool cont)
148{
149 cbuf_swap(p->valblob, value);
150
151 assert(p->valtype == REG_SZ);
152 assert((p->state == STATE_KEY_OPEN) || (p->state == STATE_VAL_SZ_CONT));
153
154 if (cont) {
155 p->state = STATE_VAL_SZ_CONT;
156 } else {
157 char* dst = NULL;
158 size_t dlen;
159 const char* src = cbuf_gets(p->valblob, 0);
160
161 p->state = STATE_KEY_OPEN;
162
163
164 if (convert_string_talloc(p->valblob, CH_UNIX, CH_UTF16LE,
165 src, strlen(src)+1,
166 &dst, &dlen, true))
167 {
168 cbuf_swapptr(p->valblob, &dst, dlen);
169 } else {
170 DEBUG(0, ("convert_string_talloc failed: >%s<\n"
171 "use it as is\t", src));
172 }
173 talloc_free(dst);
174
175 return value_callback(p);
176 }
177 return true;
178}
179
180static bool act_val_del(struct reg_parse* p)
181{
182 const char* name = cbuf_gets(p->valname, 0);
183
184 assert(p->call.val_del);
185 p->ret = p->call.val_del(p->call.data, name);
186 return p->ret >= 0;
187}
188
189static bool act_comment (struct reg_parse* p, const char* txt)
190{
191 assert(p->call.comment);
192 p->ret = p->call.comment(p->call.data, txt);
193 return p->ret >= 0;
194}
195/**@}*/
196
197
198static int nop(void* data)
199{
200 return 0;
201}
202
203
204struct reg_parse* reg_parse_new(const void* ctx,
205 struct reg_parse_callback cb,
206 const char* str_enc, unsigned flags)
207{
208 struct reg_parse* s = talloc_zero(ctx, struct reg_parse);
209 if (s == NULL)
210 return NULL;
211 s->key = cbuf_new(s);
212 s->valname = cbuf_new(s);
213 s->valblob = cbuf_new(s);
214 s->tmp = cbuf_new(s);
215 if ( (s->tmp == NULL) || (s->valblob == NULL)
216 || (s->valname == NULL) || (s->key == NULL) )
217 {
218 goto fail;
219 }
220
221 s->reg_format_callback.writeline = (reg_format_callback_writeline_t)&reg_parse_line;
222 s->reg_format_callback.data = s;
223
224 s->valtype = 0;
225 if (cb.key == NULL) {
226 cb.key = (reg_parse_callback_key_t)&nop;
227 }
228 if (cb.val == NULL) {
229 cb.val = (reg_parse_callback_val_t)&nop;
230 }
231 if (cb.val_del == NULL) {
232 cb.val_del = (reg_parse_callback_val_del_t)&nop;
233 }
234 if (cb.comment == NULL) {
235 cb.comment = (reg_parse_callback_comment_t)&nop;
236 }
237
238 s->call = cb;
239 s->linenum = 0;
240 s->state = STATE_DEFAULT;
241 s->flags = flags;
242
243 if (str_enc && !set_iconv(&s->str2UTF16, "UTF-16LE", str_enc)) {
244 DEBUG(0, ("reg_parse_new: failed to set encoding: %s",
245 str_enc));
246 goto fail;
247 }
248
249 assert(&s->reg_format_callback == (struct reg_format_callback*)s);
250 return s;
251fail:
252 talloc_free(s);
253 return NULL;
254}
255
256/**
257 * @defgroup parse Parser Primitive
258 * @ingroup internal
259 * @{
260 */
261
262
263static bool srprs_key(const char** ptr, cbuf* key, bool* del)
264{
265 const char* pos = *ptr;
266 const char* closing_bracket_pos = NULL;
267 size_t closing_bracket_idx = 0;
268
269 if (!srprs_skipws(&pos) || !srprs_char(&pos, '[')) {
270 return false;
271 }
272
273 *del = srprs_char(&pos, '-');
274
275 cbuf_clear(key);
276
277 while (true) {
278 while (srprs_charsetinv(&pos, "]\\", key))
279 ;
280
281 switch (*pos) {
282
283 case ']':
284 closing_bracket_idx = cbuf_getpos(key);
285 closing_bracket_pos = pos;
286 cbuf_putc(key, ']');
287 pos++;
288 break;
289
290 case '\\':
291 cbuf_putc(key, '\\');
292 /* n++; */
293 /* cbuf_puts(subkeyidx, cbuf_getpos(key), sizeof(size_t)) */
294 while (srprs_char(&pos,'\\'))
295 ;
296 break;
297
298 case '\0':
299 if (closing_bracket_pos == NULL) {
300 return false;
301 }
302
303 /* remove trailing backslash (if any) */
304 if (*(closing_bracket_pos-1)=='\\') {
305 closing_bracket_idx--;
306 }
307
308 cbuf_setpos(key, closing_bracket_idx);
309 *ptr = closing_bracket_pos+1;
310 return true;
311
312 default:
313 assert(false);
314 }
315 }
316}
317
318static bool srprs_val_name(const char** ptr, cbuf* name)
319{
320 const char* pos = *ptr;
321 const size_t spos = cbuf_getpos(name);
322
323 if ( !srprs_skipws(&pos) ) {
324 goto fail;
325 }
326
327 if ( srprs_char(&pos, '@') ) {
328 cbuf_puts(name, "", -1);
329 }
330 else if (!srprs_quoted_string(&pos, name, NULL)) {
331 goto fail;
332 }
333
334 if (!srprs_skipws(&pos) || !srprs_char(&pos, '=')) {
335 goto fail;
336 }
337
338 *ptr = pos;
339 return true;
340
341fail:
342 cbuf_setpos(name, spos);
343 return false;
344}
345
346static bool srprs_val_dword(const char** ptr, uint32_t* type, uint32_t* val)
347{
348 const char* pos = *ptr;
349
350 if (!srprs_str(&pos, "dword:", -1)) {
351 return false;
352 }
353
354 if (!srprs_hex(&pos, 8, val)) {
355 return false;
356 }
357
358 *type = REG_DWORD;
359 *ptr = pos;
360 return true;
361}
362
363static bool srprs_val_sz(const char** ptr, uint32_t* type, cbuf* val, bool* cont)
364{
365 if (!srprs_quoted_string(ptr, val, cont)) {
366 return false;
367 }
368
369 *type = REG_SZ;
370 return true;
371}
372
373
374static bool srprs_nl_no_eos(const char** ptr, cbuf* str, bool eof)
375{
376 const char* pos = *ptr;
377 const size_t spos = cbuf_getpos(str);
378
379 if( srprs_nl(&pos, str) && (eof || *pos != '\0')) {
380 *ptr = pos;
381 return true;
382 }
383 cbuf_setpos(str, spos);
384 return false;
385}
386
387
388static bool srprs_eol_cont(const char** ptr, bool* cont)
389{
390 const char* pos = *ptr;
391 bool bs = srprs_char(&pos, '\\');
392
393 if (!srprs_eol(&pos, NULL)) {
394 return false;
395 }
396
397 *cont = bs;
398 *ptr = pos;
399 return true;
400}
401
402/* matches the empty string, for zero length lists */
403static bool srprs_val_hex_values(const char** ptr, cbuf* val, bool* cont)
404{
405 const char* pos = *ptr;
406 unsigned u;
407
408 do {
409 if (!srprs_skipws(&pos) || !srprs_hex(&pos, 2, &u) || !srprs_skipws(&pos)) {
410 break;
411 }
412 cbuf_putc(val, (char)u);
413 } while(srprs_char(&pos, ','));
414
415 *ptr = pos;
416
417 if (srprs_skipws(&pos) && srprs_eol_cont(&pos, cont)) {
418 *ptr = pos;
419 }
420
421 return true;
422}
423
424static bool srprs_val_hex(const char** ptr, uint32_t* ptype, cbuf* val,
425 bool* cont)
426{
427 const char* pos = *ptr;
428 uint32_t type;
429
430 if (!srprs_str(&pos, "hex", -1)) {
431 return false;
432 }
433
434 if (srprs_char(&pos, ':')) {
435 type = REG_BINARY;
436 }
437 else if (!srprs_char(&pos, '(') ||
438 !srprs_hex(&pos, 8, &type) ||
439 !srprs_char(&pos,')') ||
440 !srprs_char(&pos, ':'))
441 {
442 return false;
443 }
444
445 if (!srprs_val_hex_values(&pos, val, cont)) {
446 return false;
447 }
448
449 *ptype = type;
450 *ptr = pos;
451 return true;
452}
453
454
455static bool srprs_comment(const char** ptr, cbuf* str)
456{
457 return srprs_char(ptr, ';') && srprs_line(ptr, str);
458}
459
460/**@}*/
461
462int reg_parse_set_options(struct reg_parse* parser, const char* options)
463{
464 static const char* DEFAULT ="enc=unix,flags=0";
465
466 int ret = 0;
467 char *key, *val;
468 void* ctx = talloc_new(parser);
469
470 if (options == NULL) {
471 options = DEFAULT;
472 }
473
474 while (srprs_option(&options, ctx, &key, &val)) {
475 if ((strcmp(key, "enc") == 0) || (strcmp(key, "strenc") == 0)) {
476 } else if ((strcmp(key, "flags") == 0) && (val != NULL)) {
477 char* end = NULL;
478 if (val != NULL) {
479 parser->flags = strtol(val, &end, 0);
480 }
481 if ((end==NULL) || (*end != '\0')) {
482 DEBUG(0, ("Invalid flags format: %s\n",
483 val ? val : "<NULL>"));
484 ret = -1;
485 }
486 }
487 /* else if (strcmp(key, "hive") == 0) { */
488 /* if (strcmp(val, "short") == 0) { */
489 /* f->hive_fmt = REG_FMT_SHORT_HIVES; */
490 /* } else if (strcmp(val, "long") == 0) { */
491 /* f->hive_fmt = REG_FMT_LONG_HIVES; */
492 /* } else if (strcmp(val, "preserve") == 0) { */
493 /* f->hive_fmt = REG_FMT_PRESERVE_HIVES; */
494 /* } else { */
495 /* DEBUG(0, ("Invalid hive format: %s\n", val)); */
496 /* ret = -1; */
497 /* } */
498 /* } */
499 }
500 talloc_free(ctx);
501 return ret;
502}
503
504
505int reg_parse_line(struct reg_parse* parser, const char* line)
506{
507 const char* pos;
508 bool del=false;
509 cbuf* tmp=cbuf_clear(parser->tmp);
510 bool cb_ok = true;
511 bool cont = true;
512
513 if (!line) {
514 return -4;
515 }
516
517 parser->linenum++;
518 pos = line;
519
520 switch (parser->state) {
521 case STATE_VAL_HEX_CONT:
522 if (srprs_val_hex_values(&pos, parser->valblob, &cont)) {
523 cb_ok = act_val_hex(parser, parser->valblob, cont);
524 }
525 goto done;
526 case STATE_VAL_SZ_CONT:
527 if (srprs_quoted_string(&pos, parser->valblob, &cont)) {
528 cb_ok = act_val_sz(parser, parser->valblob, cont);
529 }
530 goto done;
531 default:
532 cont = false;
533 }
534
535 if ( !srprs_skipws(&pos) ) {
536 return -4;
537 }
538
539 /* empty line ?*/
540 if ( srprs_eol(&pos, NULL) ) {
541 return 0;
542 }
543
544 /* key line ?*/
545 else if (srprs_key(&pos, tmp, &del)) {
546 cb_ok = act_key(parser, tmp, del);
547 }
548
549 /* comment line ? */
550 else if (srprs_comment(&pos, tmp)) {
551 cb_ok = act_comment(parser, cbuf_gets(tmp, 0));
552 }
553
554 /* head line */
555 else if ((parser->linenum == 1) && srprs_line(&pos, tmp) ) {
556 /* cb_ok = act_head(parser, cbuf_gets(tmp, 0)); */
557 }
558
559 /* value line ?*/
560 else if (srprs_val_name(&pos, tmp)) {
561 uint32_t dw;
562 cbuf_swap(parser->valname, tmp);
563 cbuf_clear(tmp);
564
565 if (parser->state != STATE_KEY_OPEN) {
566 DEBUG(0, ("value \"%s\" without a key at line: %i",
567 cbuf_gets(parser->valname, 0), parser->linenum));
568 return -3;
569 }
570
571 if (!srprs_skipws(&pos)) {
572 return -4;
573 }
574
575 if (srprs_char(&pos, '-')) {
576 cb_ok = act_val_del(parser);
577 }
578 else if (srprs_val_dword(&pos, &parser->valtype, &dw)) {
579 cb_ok = act_val_dw(parser, dw);
580 }
581 else if (srprs_val_sz(&pos, &parser->valtype, tmp, &cont)) {
582 cb_ok = act_val_sz(parser, tmp, cont);
583 }
584 else if (srprs_val_hex(&pos, &parser->valtype, tmp, &cont)){
585 cb_ok = act_val_hex(parser, tmp, cont);
586 }
587 else {
588 DEBUG(0, ("value \"%s\" parse error"
589 "at line: %i pos: %li : %s",
590 cbuf_gets(parser->valname, 0), parser->linenum,
591 (long int)(pos-line), pos));
592 return -3;
593 }
594 }
595 else {
596 DEBUG(0, ("unrecognized line %i : %s\n", parser->linenum, line));
597 return -3;
598 }
599
600done:
601 if (!cb_ok)
602 return -2;
603
604 if (!srprs_skipws(&pos) || !srprs_eol(&pos, NULL)) {
605 DEBUG(0, ("trailing garbage at line: %i pos: %li : %s\n",
606 parser->linenum, (long int)(pos-line), pos));
607 return -1;
608 }
609 return 0;
610}
611
612/******************************************************************************/
613/**
614 * @addtogroup misc
615 * @{
616 */
617static bool lookslike_utf16(const char* line, size_t len, bool* little_endian)
618{
619 static const uint16_t M_LE = 0xFF80;
620 static const uint16_t M_BE = 0x80FF;
621 uint16_t mask;
622 bool le;
623
624 size_t l = MIN(len/2, 64);
625 uint16_t* u = (uint16_t*)line;
626 int i;
627
628 assert(len >= 2);
629
630 if ( u[0] & M_LE ) {
631 le = true;
632 mask = M_LE;
633 } else if ( u[0] & M_BE ) {
634 le = false;
635 mask = M_BE;
636 } else {
637 return false;
638 }
639
640 for (i=1; i<l; i++) {
641 if ( u[i] & mask ) {
642 return false;
643 }
644 }
645
646 *little_endian = le;
647 return true;
648}
649
650static bool lookslike_dos(const char* line, size_t len)
651{
652 int i;
653 for (i=0; i<len; i++) {
654 if ( (line[i] == '\0') || (line[i] & 0x80) ) {
655 return false;
656 }
657 if ( (line[i] == '\r') && (i+1 < len) && (line[i+1] == '\n') ) {
658 return true;
659 }
660 }
661 return false;
662}
663
664static bool guess_charset(const char** ptr,
665 size_t* len,
666 const char** file_enc,
667 const char** str_enc)
668{
669 const char* charset = NULL;
670 const char* pos = *ptr;
671
672 if (*len < 4) {
673 return false;
674 }
675
676 if (srprs_bom(&pos, &charset, NULL)) {
677 *len -= (pos - *ptr);
678 *ptr = pos;
679 if (*file_enc == NULL) {
680 *file_enc = charset;
681 }
682 else if( strcmp(*file_enc, charset) != 0 ) {
683 DEBUG(0, ("file encoding forced to %s\n",
684 *file_enc));
685 }
686 }
687 else if (*file_enc == NULL) {
688 bool le;
689 if (lookslike_utf16(*ptr, *len, &le)) {
690 *file_enc = le ? "UTF-16LE" : "UTF-16BE";
691 }
692 else if (lookslike_dos(*ptr, *len)) {
693 *file_enc = "dos";
694 }
695 else {
696 *file_enc = "unix";
697 }
698 }
699
700 if ((str_enc != NULL) && (*str_enc == NULL)) {
701 *str_enc = ( strncmp(*ptr, "REGEDIT4", 8) == 0)
702 ? *file_enc
703 : "UTF-16LE";
704 }
705
706 return true;
707}
708/**@}*/
709
710struct reg_parse_fd_opt {
711 const char* file_enc;
712 const char* str_enc;
713 unsigned flags;
714 int fail_level;
715};
716
717static struct reg_parse_fd_opt
718reg_parse_fd_opt(void* mem_ctx, const char* options)
719{
720 struct reg_parse_fd_opt ret = {
721 .file_enc = NULL,
722 .str_enc = NULL,
723 .flags = 0,
724 };
725
726 void* ctx = talloc_new(mem_ctx);
727 char *key, *val;
728
729 if (options == NULL) {
730 goto done;
731 }
732
733 while (srprs_option(&options, ctx, &key, &val)) {
734 if (strcmp(key, "enc") == 0) {
735 ret.file_enc = talloc_steal(mem_ctx, val);
736 ret.str_enc = ret.file_enc;
737 } else if (strcmp(key, "strenc") == 0) {
738 ret.str_enc = talloc_steal(mem_ctx, val);
739 } else if (strcmp(key, "fileenc") == 0) {
740 ret.file_enc = talloc_steal(mem_ctx, val);
741 } else if ((strcmp(key, "flags") == 0) && (val != NULL)) {
742 char* end = NULL;
743 if (val != NULL) {
744 ret.flags = strtol(val, &end, 0);
745 }
746 if ((end==NULL) || (*end != '\0')) {
747 DEBUG(0, ("Invalid format \"%s\": %s\n",
748 key, val ? val : "<NULL>"));
749 }
750 } else if ((strcmp(key, "fail") == 0) && (val != NULL)) {
751 char* end = NULL;
752 if (val != NULL) {
753 ret.fail_level = -strtol(val, &end, 0);
754 }
755 if ((end==NULL) || (*end != '\0')) {
756 DEBUG(0, ("Invalid format \"%s\": %s\n",
757 key, val ? val : "<NULL>"));
758 }
759 }
760 }
761done:
762 talloc_free(ctx);
763 return ret;
764}
765
766
767static void
768handle_iconv_errno(int err, const char* obuf, size_t linenum,
769 smb_iconv_t cd, const char** iptr, size_t* ilen,
770 char** optr, size_t *olen)
771{
772 const char *pos = obuf;
773 const char *ptr = obuf;
774 switch(err) {
775 case EINVAL:
776 /* DEBUG(0, ("Incomplete multibyte sequence\n")); */
777 case E2BIG:
778 return;
779 case EILSEQ:
780 break;
781 default:
782 assert(false);
783 }
784
785 **optr = '\0';
786 while (srprs_line(&ptr, NULL) && srprs_nl(&ptr, NULL)) {
787 pos = ptr;
788 linenum++;
789 }
790 if (pos == *optr) {
791 pos = MAX(obuf, *optr-60);
792 }
793 DEBUG(0, ("Illegal multibyte sequence at line %lu: %s",
794 (long unsigned)(linenum+1), pos));
795
796 assert((*ilen) > 0);
797 do {
798 size_t il = 1;
799 DEBUGADD(0, ("<%02x>", (unsigned char)**iptr));
800
801 if ((*olen) > 0) {
802 *(*optr)++ = '\?';
803 (*iptr)++;
804 /* Todo: parametrize, e.g. skip: *optr++ = *iptr++; */
805 (*ilen)--;
806 }
807
808 if (smb_iconv(cd, iptr, &il, optr, olen) != (size_t)-1 || (errno != EILSEQ)) {
809 if(il == 0)
810 (*ilen)-- ;
811 break;
812 }
813
814 }
815 while ((*ilen > 0) && (*olen > 0));
816
817 DEBUGADD(0, ("\n"));
818
819}
820
821int reg_parse_fd(int fd, const struct reg_parse_callback* cb, const char* opts)
822{
823 void* mem_ctx = talloc_stackframe();
824 cbuf* line = cbuf_new(mem_ctx);
825 smb_iconv_t cd = (smb_iconv_t)-1;
826 struct reg_parse* parser = NULL;
827 char buf_raw[1024];
828 char buf_unix[1025];
829
830 ssize_t nread;
831 size_t nconv;
832 const char* pos;
833 const char* iptr;
834 char* optr;
835 size_t ilen;
836 size_t olen;
837 int ret = -1;
838 bool eof = false;
839 size_t linenum = 0;
840
841 struct reg_parse_fd_opt opt = reg_parse_fd_opt(mem_ctx, opts);
842
843 if (cb == NULL) {
844 DEBUG(0,("reg_parse_fd: NULL callback\n"));
845 goto done;
846 }
847
848 nread = read(fd, buf_raw, sizeof(buf_raw));
849 if (nread < 0) {
850 DEBUG(0, ("reg_parse_fd: read failed: %s\n", strerror(errno)));
851 ret = nread;
852 goto done;
853 }
854
855 iptr = &buf_raw[0];
856 ilen = nread;
857
858 if (!guess_charset(&iptr, &ilen,
859 &opt.file_enc, &opt.str_enc))
860 {
861 DEBUG(0, ("reg_parse_fd: failed to guess encoding\n"));
862 goto done;
863 }
864
865 DEBUG(10, ("reg_parse_fd: encoding file: %s str: %s\n",
866 opt.file_enc, opt.str_enc));
867
868
869 if (!set_iconv(&cd, "unix", opt.file_enc)) {
870 DEBUG(0, ("reg_parse_fd: failed to set file encoding %s\n",
871 opt.file_enc));
872 goto done;
873 }
874
875 parser = reg_parse_new(mem_ctx, *cb, opt.str_enc, opt.flags);
876
877 optr = &buf_unix[0];
878 while (!eof) {
879 olen = sizeof(buf_unix) - (optr - buf_unix) - 1 ;
880 while ( olen > 0 ) {
881 memmove(buf_raw, iptr, ilen);
882
883 nread = read(fd, buf_raw + ilen, sizeof(buf_raw) - ilen);
884 if (nread < 0) {
885 DEBUG(0, ("reg_parse_fd: read failed: %s\n", strerror(errno)));
886 ret = nread;
887 goto done;
888 }
889
890 iptr = buf_raw;
891 ilen += nread;
892
893 if (ilen == 0) {
894 smb_iconv(cd, NULL, NULL, &optr, &olen);
895 eof = true;
896 break;
897 }
898
899 nconv = smb_iconv(cd, &iptr, &ilen, &optr, &olen);
900
901 if (nconv == (size_t)-1) {
902 handle_iconv_errno(errno, buf_unix, linenum,
903 cd, &iptr, &ilen,
904 &optr, &olen);
905 break;
906 }
907 }
908 /* process_lines: */
909 *optr = '\0';
910 pos = &buf_unix[0];
911
912 while ( srprs_line(&pos, line) && srprs_nl_no_eos(&pos, line, eof)) {
913 linenum ++;
914 ret = reg_parse_line(parser, cbuf_gets(line, 0));
915 if (ret < opt.fail_level) {
916 goto done;
917 }
918 cbuf_clear(line);
919 }
920 memmove(buf_unix, pos, optr - pos);
921 optr -= (pos - buf_unix);
922 }
923
924 ret = 0;
925done:
926 set_iconv(&cd, NULL, NULL);
927 talloc_free(mem_ctx);
928 return ret;
929}
930
931int reg_parse_file(const char* fname, const struct reg_parse_callback* cb,
932 const char* opt)
933{
934 int ret = -1;
935 int fd;
936
937 fd = open(fname, O_RDONLY);
938 if (fd < 0) {
939 DEBUG(0, ("reg_parse_file: open failed: %s\n", strerror(errno)));
940 return -1;
941 }
942
943 ret = reg_parse_fd(fd, cb, opt);
944
945 close(fd);
946 return ret;
947}
948
949/* static struct registry_key *find_regkey_by_hnd(pipes_struct *p, */
950/* struct policy_handle *hnd) */
951/* { */
952/* struct registry_key *regkey = NULL; */
953
954/* if(!find_policy_by_hnd(p,hnd,(void **)(void *)&regkey)) { */
955/* DEBUG(2,("find_regkey_index_by_hnd: Registry Key not found: ")); */
956/* return NULL; */
957/* } */
958
959/* return regkey; */
960/* } */
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