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1/*␊
2 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.␊
3 *␊
4 * @APPLE_LICENSE_HEADER_START@␊
5 * ␊
6 * Portions Copyright (c) 2003 Apple Computer, Inc. All Rights␊
7 * Reserved. ␊
8 * The contents of this file constitute Original Code as defined in and␊
9 * are subject to the Apple Public Source License Version 2.0 (the␊
10 * "License"). You may not use this file except in compliance with the␊
11 * License. Please obtain a copy of the License at␊
12 * http://www.apple.com/publicsource and read it before using this file.␊
13 * ␊
14 * This Original Code and all software distributed under the License are␊
15 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER␊
16 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,␊
17 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,␊
18 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the␊
19 * License for the specific language governing rights and limitations␊
20 * under the License.␊
21 * ␊
22 * @APPLE_LICENSE_HEADER_END@␊
23 */␊
24␊
25#include "bootstruct.h"␊
26#include "libsaio.h"␊
27#include "sl.h"␊
28#include "xml.h"␊
29␊
30#define ASSERT_DICT \␊
31if (dict == DEFAULT_BOOT_CONFIG_DICT) \␊
32dict = bootInfo->bootConfig.dictionary ; \␊
33else if (dict == DEFAULT_SYSTEM_CONFIG_DICT) \␊
34dict = bootInfo->SystemConfig.dictionary ; \␊
35else if (dict == DEFAULT_OVERRIDE_CONFIG_DICT) \␊
36dict = bootInfo->overrideConfig.dictionary ; \␊
37else if (dict == DEFAULT_SMBIOS_CONFIG_DICT) \␊
38dict = bootInfo->smbiosConfig.dictionary ; \␊
39else if (dict == DEFAULT_HELPER_CONFIG_DICT) \␊
40dict = bootInfo->helperConfig.dictionary ; ␊
41␊
42string_ref *ref_strings = NULL;␊
43␊
44/// TODO: remove below␊
45static char* buffer_start = NULL;␊
46// TODO: redo the next two functions␊
47static void SaveRefString(char* string, int id)␊
48{␊
49␉//printf("Adding Ref String %d (%s)\n", id, string);␊
50␉string_ref* tmp = ref_strings;␊
51␉while(tmp)␊
52␉{␊
53␉␉if(tmp->id == id)␊
54␉␉{␊
55␉␉␉tmp->string = malloc(strlen(string+1));␊
56␉␉␉sprintf(tmp->string, "%s", string);␊
57␉␉␉return;␊
58␉␉}␊
59␉␉tmp = tmp->next;␊
60␉}␊
61␉␊
62␉string_ref* new_ref = malloc(sizeof(string_ref));␊
63␉new_ref->string = malloc(strlen(string)+1);␊
64␉sprintf(new_ref->string, "%s", string);␊
65␉new_ref->id = id;␊
66␉new_ref->next = ref_strings;␊
67␉ref_strings = new_ref;␊
68}␊
69␊
70static char* GetRefString(int id)␊
71{␊
72␉string_ref* tmp = ref_strings;␊
73␉while(tmp)␊
74␉{␊
75␉␉if(tmp->id == id) return tmp->string;␊
76␉␉tmp = tmp->next;␊
77␉}␊
78␉//verbose("Unable to locate Ref String %d\n", id);␊
79␉return "Unknown";␊
80}␊
81␊
82#define USEMALLOC 1␊
83#define DOFREE 1␊
84␊
85static long ParseTagList(char *buffer, TagPtr *tag, long type, long empty);␊
86static long ParseTagKey(char *buffer, TagPtr *tag);␊
87static long ParseTagString(char *buffer, TagPtr *tag);␊
88static long ParseTagInteger(char *buffer, TagPtr *tag);␊
89static long ParseTagData(char *buffer, TagPtr *tag);␊
90static long ParseTagDate(char *buffer, TagPtr *tag);␊
91static long ParseTagBoolean(char *buffer, TagPtr *tag, long type);␊
92static long GetNextTag(char *buffer, char **tag, long *start);␊
93static long FixDataMatchingTag(char *buffer, char *tag);␊
94static TagPtr NewTag(void);␊
95static char *NewSymbol(char *string);␊
96#if DOFREE␊
97static void FreeSymbol(char *string);␊
98#endif␊
99␊
100␊
101//==========================================================================␊
102// XMLGetProperty␊
103␊
104TagPtr␊
105XMLGetProperty( TagPtr dict, const char * key )␊
106{␊
107 TagPtr tagList, tag;␊
108 ␊
109 ASSERT_DICT␊
110 ␊
111 if (dict->type != kTagTypeDict) return 0;␊
112 ␊
113 tag = 0;␊
114 tagList = dict->tag;␊
115 while (tagList)␊
116 {␊
117 tag = tagList;␊
118 tagList = tag->tagNext;␊
119 ␊
120 if ((tag->type != kTagTypeKey) || (tag->string == 0)) continue;␊
121 ␊
122 if (!strcmp(tag->string, key)) return tag->tag;␊
123 }␊
124 ␊
125 return 0;␊
126}␊
127␊
128␊
129// XMLGetTag(int index)␊
130␊
131// XMLTagCount( TagPtr dict )␊
132int XMLTagCount( TagPtr dict )␊
133{␊
134␉int count = 0;␊
135␉TagPtr tagList, tag;␊
136 ␊
137 ASSERT_DICT␊
138 ␊
139 if (dict->type != kTagTypeDict && dict->type != kTagTypeArray) return 0;␊
140␉tag = 0;␊
141 tagList = dict->tag;␊
142 while (tagList)␊
143 {␊
144␉␉tag = tagList;␊
145 tagList = tag->tagNext;␊
146␉␉␊
147␉␉if (((tag->type != kTagTypeKey) && ((tag->string == 0) || (tag->string[0] == 0)))␊
148␉␉␉&& (dict->type != kTagTypeArray)␉// If we are an array, any element is valid␊
149␉␉␉) continue;␊
150␉␉␊
151␉␉if(tag->type == kTagTypeKey) printf("Located key %s\n", tag->string);␊
152 ␊
153␉␉count++;␊
154 }␊
155␉␊
156␉return count;␊
157}␊
158␊
159TagPtr XMLGetElement( TagPtr dict, int id )␊
160{␊
161 ASSERT_DICT␊
162 ␊
163␉if(dict->type != kTagTypeArray) return 0;␊
164␉␊
165␉int element = 0;␊
166␉TagPtr tmp = dict->tag;␊
167 ␊
168␉while(element < id)␊
169␉{␊
170␉␉element++;␊
171␉␉tmp = tmp->tagNext;␊
172␉}␊
173␉␊
174␉return tmp;␊
175}␊
176/* Function for basic XML character entities parsing */␊
177␊
178char*␊
179XMLDecode(const char* src)␊
180{␊
181 typedef const struct XMLEntity {␊
182 const char* name;␊
183 size_t nameLen;␊
184 char value;␊
185 } XMLEntity;␊
186 ␊
187 /* This is ugly, but better than specifying the lengths by hand */␊
188#define _e(str,c) {str,sizeof(str)-1,c}␊
189 const XMLEntity ents[] = {␊
190 _e("quot;",'"'), _e("apos;",'\''),␊
191 _e("lt;", '<'), _e("gt;", '>'),␊
192 _e("amp;", '&')␊
193 };␊
194 ␊
195 size_t len;␊
196 const char *s;␊
197 char *out, *o;␊
198 ␊
199 if ( !src || !(len = strlen(src)) || !(out = malloc(len+1)) )␊
200 return 0;␊
201 ␊
202 o = out;␊
203 s = src;␊
204 while (s <= src+len) /* Make sure the terminator is also copied */␊
205 {␊
206 if ( *s == '&' )␊
207 {␊
208 bool entFound = false;␊
209 int i;␊
210 ␊
211 s++;␊
212 for ( i = 0; (unsigned)i < sizeof(ents); i++)␊
213 {␊
214 if ( strncmp(s, ents[i].name, ents[i].nameLen) == 0 )␊
215 {␊
216 entFound = true;␊
217 break;␊
218 }␊
219 }␊
220 if ( entFound )␊
221 {␊
222 *o++ = ents[i].value;␊
223 s += ents[i].nameLen;␊
224 continue;␊
225 }␊
226 }␊
227 ␊
228 *o++ = *s++;␊
229 }␊
230 ␊
231 return out;␊
232} ␊
233␊
234//==========================================================================␊
235// XMLParseFile␊
236// Expects to see one dictionary in the XML file, the final pos will be returned␊
237// If the pos is not equal to the strlen, then there are multiple dicts␊
238// Puts the first dictionary it finds in the␊
239// tag pointer and returns the end of the dic, or returns -1 if not found.␊
240//␊
241long␊
242XMLParseFile( char * buffer, TagPtr * dict )␊
243{␊
244 long length, pos;␊
245 TagPtr tag;␊
246 pos = 0;␊
247␉char *configBuffer;␊
248␉␊
249␉␊
250␉␊
251 configBuffer = malloc(strlen(buffer)+1);␊
252 strcpy(configBuffer, buffer);␊
253␉␊
254␉buffer_start = configBuffer;␊
255 ␊
256 while (1)␊
257 {␊
258 length = XMLParseNextTag(configBuffer + pos, &tag);␊
259 if (length == -1) break;␊
260 ␊
261 pos += length;␊
262 ␊
263 if (tag == 0) continue;␊
264 if (tag->type == kTagTypeDict) break;␊
265 ␊
266 XMLFreeTag(tag);␊
267 }␊
268␉free(configBuffer);␊
269␉if (length < 0) {␊
270 return -1;␊
271 }␊
272 *dict = tag;␊
273 return pos;␊
274}␊
275␊
276//==========================================================================␊
277// ParseNextTag␊
278// TODO: cleanup␊
279long␊
280XMLParseNextTag( char * buffer, TagPtr * tag )␊
281{␊
282␉long length, pos;␊
283␉char * tagName;␊
284 ␊
285 length = GetNextTag(buffer, &tagName, 0);␊
286 if (length == -1) return -1;␊
287␉␊
288␉pos = length;␊
289 if (!strncmp(tagName, kXMLTagPList, 6))␊
290 {␊
291 length = 0;␊
292 }␊
293␉/***** dict ****/␊
294 else if (!strcmp(tagName, kXMLTagDict))␊
295 {␊
296 length = ParseTagList(buffer + pos, tag, kTagTypeDict, 0);␊
297 }␊
298 else if (!strncmp(tagName, kXMLTagDict, strlen(kXMLTagDict)) && tagName[strlen(tagName)-1] == '/')␊
299 {␊
300 length = ParseTagList(buffer + pos, tag, kTagTypeDict, 1);␊
301 }␊
302 else if (!strncmp(tagName, kXMLTagDict " ", strlen(kXMLTagDict " ")))␊
303 {␊
304 length = ParseTagList(buffer + pos, tag, kTagTypeDict, 0);␊
305 }␊
306␉/***** key ****/␊
307 else if (!strcmp(tagName, kXMLTagKey))␊
308 {␊
309 length = ParseTagKey(buffer + pos, tag);␊
310 }␊
311␉␊
312␉/***** string ****/␊
313 else if (!strcmp(tagName, kXMLTagString))␊
314 {␊
315 length = ParseTagString(buffer + pos, tag);␊
316 }␊
317 else if (!strncmp(tagName, kXMLTagString " ", strlen(kXMLTagString " ")))␊
318 {␊
319␉␉// TODO: save tag if if found␊
320␉␉if(!strncmp(tagName + strlen(kXMLTagString " "), kXMLStringID, strlen(kXMLStringID)))␊
321␉␉{␊
322␉␉␉// ID=␊
323␉␉␉int id = 0;␊
324␉␉␉int cnt = strlen(kXMLTagString " " kXMLStringID "\"") + 1;␊
325␉␉␉while ((tagName[cnt] != '\0') && (tagName[cnt] != '"')) cnt++;␊
326␉␉␉tagName[cnt] = 0;␊
327␉␉␉char* val = tagName + strlen(kXMLTagString " " kXMLStringID "\"");␊
328␉␉␉while(*val)␊
329␉␉␉{␉␉␉␊
330␉␉␉␉if ((*val >= '0' && *val <= '9'))␉// 0 - 9␊
331␉␉␉␉{␊
332␉␉␉␉␉id = (id * 10) + (*val++ - '0');␊
333␉␉␉␉}␊
334␉␉␉␉else␊
335␉␉␉␉{␊
336␉␉␉␉␉printf("ParseStringID error (0x%x)\n", *val);␊
337␉␉␉␉␉getc();␊
338␉␉␉␉␉return -1;␊
339␉␉␉␉␉␊
340␉␉␉␉}␊
341␉␉␉␉␊
342␉␉␉}␊
343␉␉␉length = ParseTagString(buffer + pos, tag);␊
344 ␊
345␉␉␉SaveRefString(buffer + pos, id);␊
346␉␉}␊
347␉␉else if(!strncmp(tagName + strlen(kXMLTagString " "), kXMLStringIDRef, strlen(kXMLStringIDRef)))␊
348␉␉{␊
349␉␉␉// IDREF=␊
350␉␉␉int id = 0;␊
351␉␉␉int cnt = strlen(kXMLTagString " " kXMLStringIDRef "\"") + 1;␊
352␉␉␉while ((tagName[cnt] != '\0') && (tagName[cnt] != '"')) cnt++;␊
353␉␉␉tagName[cnt] = 0;␊
354␉␉␉char* val = tagName + strlen(kXMLTagString " " kXMLStringIDRef "\"");␊
355␉␉␉while(*val)␊
356␉␉␉{␉␉␉␊
357␉␉␉␉if ((*val >= '0' && *val <= '9'))␉// 0 - 9␊
358␉␉␉␉{␊
359␉␉␉␉␉id = (id * 10) + (*val++ - '0');␊
360␉␉␉␉}␊
361␉␉␉␉else␊
362␉␉␉␉{␊
363␉␉␉␉␉printf("ParseStringIDREF error (0x%x)\n", *val);␊
364␉␉␉␉␉getc();␊
365␉␉␉␉␉return -1;␊
366␉␉␉␉␉␊
367␉␉␉␉}␊
368␉␉␉␉␊
369␉␉␉}␊
370␉␉␉char* str = GetRefString(id);␊
371 ␊
372␉␉␉TagPtr tmpTag = NewTag();␊
373␉␉␉tmpTag->type = kTagTypeString;␊
374␉␉␉tmpTag->string = str;␊
375␉␉␉tmpTag->tag = 0;␊
376␉␉␉tmpTag->tagNext = 0;␊
377␉␉␉tmpTag->offset = buffer_start ? buffer - buffer_start + pos : 0;␊
378␉␉␉*tag = tmpTag;␊
379␉␉␉␊
380␉␉␉length = 0;␊
381␉␉␉//printf("Located IDREF, id = %d, string = %s\n", id, str);␊
382␉␉}␊
383 ␊
384 }␊
385␉␊
386␉/***** integer ****/␊
387 else if (!strcmp(tagName, kXMLTagInteger))␊
388 {␊
389 length = ParseTagInteger(buffer + pos, tag);␊
390 }␊
391 else if (!strncmp(tagName, kXMLTagInteger " ", strlen(kXMLTagInteger " ")))␊
392 {␊
393␉␉if(!strncmp(tagName + strlen(kXMLTagInteger " "), kXMLStringID, strlen(kXMLStringID)))␊
394␉␉{␊
395␉␉␉// ID=␊
396␉␉␉int id = 0;␊
397␉␉␉int cnt = strlen(kXMLTagInteger " " kXMLStringID "\"") + 1;␊
398␉␉␉while ((tagName[cnt] != '\0') && (tagName[cnt] != '"')) cnt++;␊
399␉␉␉tagName[cnt] = 0;␊
400␉␉␉char* val = tagName + strlen(kXMLTagInteger " " kXMLStringID "\"");␊
401␉␉␉while(*val)␊
402␉␉␉{␉␉␉␊
403␉␉␉␉if ((*val >= '0' && *val <= '9'))␉// 0 - 9␊
404␉␉␉␉{␊
405␉␉␉␉␉id = (id * 10) + (*val++ - '0');␊
406␉␉␉␉}␊
407␉␉␉␉else␊
408␉␉␉␉{␊
409␉␉␉␉␉printf("ParseIntegerID error (0x%x)\n", *val);␊
410␉␉␉␉␉getc();␊
411␉␉␉␉␉return -1;␊
412␉␉␉␉␉␊
413␉␉␉␉}␊
414␉␉␉␉␊
415␉␉␉}␊
416␉␉␉length = ParseTagInteger(buffer + pos, tag);␊
417␉␉␉␊
418␉␉␉SaveRefString((*tag)->string, id);␊
419␉␉}␊
420␉␉else if(!strncmp(tagName + strlen(kXMLTagInteger " "), kXMLStringIDRef, strlen(kXMLStringIDRef)))␊
421␉␉{␊
422␉␉␉// IDREF=␊
423␉␉␉int id = 0;␊
424␉␉␉int cnt = strlen(kXMLTagInteger " " kXMLStringIDRef "\"") + 1;␊
425␉␉␉while ((tagName[cnt] != '\0') && (tagName[cnt] != '"')) cnt++;␊
426␉␉␉tagName[cnt] = 0;␊
427␉␉␉char* val = tagName + strlen(kXMLTagInteger " " kXMLStringIDRef "\"");␊
428␉␉␉while(*val)␊
429␉␉␉{␉␉␉␊
430␉␉␉␉if ((*val >= '0' && *val <= '9'))␉// 0 - 9␊
431␉␉␉␉{␊
432␉␉␉␉␉id = (id * 10) + (*val++ - '0');␊
433␉␉␉␉}␊
434␉␉␉␉else␊
435␉␉␉␉{␊
436␉␉␉␉␉printf("ParseStringIDREF error (0x%x)\n", *val);␊
437␉␉␉␉␉getc();␊
438␉␉␉␉␉return -1;␊
439␉␉␉␉␉␊
440␉␉␉␉}␊
441␉␉␉␉␊
442␉␉␉}␊
443␉␉␉int integer = (int)GetRefString(id);␊
444␉␉␉␊
445␉␉␉TagPtr tmpTag = NewTag();␊
446␉␉␉tmpTag->type = kTagTypeInteger;␊
447␉␉␉tmpTag->string = (char*) integer;␊
448␉␉␉tmpTag->tag = 0;␊
449␉␉␉tmpTag->tagNext = 0;␊
450␉␉␉tmpTag->offset = buffer_start ? buffer - buffer_start + pos : 0;␊
451 ␊
452␉␉␉*tag = tmpTag;␊
453␉␉␉␊
454␉␉␉length = 0;␊
455␉␉␉//printf("Located IDREF, id = %d, string = %s\n", id, str);␊
456␉␉}␉␉␊
457 ␉␉else ␊
458␉␉{␊
459␉␉␉length = ParseTagInteger(buffer + pos, tag);␊
460␉␉}␊
461␉}␊
462␉␊
463␉/***** data ****/␊
464 else if (!strcmp(tagName, kXMLTagData))␊
465 {␊
466 length = ParseTagData(buffer + pos, tag);␊
467 }␊
468␉else if (!strncmp(tagName, kXMLTagData " ", strlen(kXMLTagData " ")))␊
469 {␊
470 length = ParseTagData(buffer + pos, tag);␊
471 }␉␊
472 else if (!strcmp(tagName, kXMLTagDate))␊
473 {␊
474 length = ParseTagDate(buffer + pos, tag);␊
475 }␊
476␉␊
477␉/***** date ****/␊
478␉else if (!strncmp(tagName, kXMLTagDate " ", strlen(kXMLTagDate " ")))␊
479 {␊
480 length = ParseTagDate(buffer + pos, tag);␊
481 }␉␊
482␉␊
483␉/***** false ****/␊
484 else if (!strcmp(tagName, kXMLTagFalse))␊
485 {␊
486 length = ParseTagBoolean(buffer + pos, tag, kTagTypeFalse);␊
487 }␊
488␉/***** true ****/␊
489 else if (!strcmp(tagName, kXMLTagTrue))␊
490 {␊
491 length = ParseTagBoolean(buffer + pos, tag, kTagTypeTrue);␊
492 }␊
493␉␊
494␉/***** array ****/␊
495 else if (!strcmp(tagName, kXMLTagArray))␊
496 {␊
497 length = ParseTagList(buffer + pos, tag, kTagTypeArray, 0);␊
498 }␊
499␉else if (!strncmp(tagName, kXMLTagArray " ", strlen(kXMLTagArray " ")))␊
500 {␊
501 length = ParseTagList(buffer + pos, tag, kTagTypeArray, 0);␊
502 }␉␉␊
503 else if (!strcmp(tagName, kXMLTagArray "/"))␊
504 {␊
505 length = ParseTagList(buffer + pos, tag, kTagTypeArray, 1);␊
506 }␊
507␉␊
508␉/***** unknown ****/␊
509 else␊
510 {␊
511 *tag = 0;␊
512 length = 0;␊
513 }␊
514 ␊
515 ␊
516 if (length == -1) return -1;␊
517 ␊
518 return pos + length;␊
519}␊
520␊
521//==========================================================================␊
522// ParseTagList␊
523␊
524static long␊
525ParseTagList( char * buffer, TagPtr * tag, long type, long empty )␊
526{␊
527␉long length, pos;␊
528␉TagPtr tagList, tmpTag;␊
529 ␊
530 tagList = 0;␊
531 pos = 0;␊
532 ␊
533 if (!empty)␊
534 {␊
535 while (1)␊
536 {␊
537 length = XMLParseNextTag(buffer + pos, &tmpTag);␊
538 if (length == -1) break;␊
539 ␊
540 pos += length;␊
541 ␊
542 if (tmpTag == 0) break;␊
543 tmpTag->tagNext = tagList;␊
544 tagList = tmpTag;␊
545 }␊
546 ␊
547 if (length == -1)␊
548 {␊
549 XMLFreeTag(tagList);␊
550 return -1;␊
551 }␊
552 }␊
553 ␊
554 tmpTag = NewTag();␊
555 if (tmpTag == 0)␊
556 {␊
557 XMLFreeTag(tagList);␊
558 return -1;␊
559 }␊
560 ␊
561 tmpTag->type = type;␊
562 tmpTag->string = 0;␊
563␉tmpTag->offset = buffer_start ? buffer - buffer_start : 0;␊
564 tmpTag->tag = tagList;␊
565 tmpTag->tagNext = 0;␊
566 ␊
567 *tag = tmpTag;␊
568 ␊
569 return pos;␊
570}␊
571␊
572//==========================================================================␊
573// ParseTagKey␊
574␊
575static long␊
576ParseTagKey( char * buffer, TagPtr * tag )␊
577{␊
578 long length, length2;␊
579 char *string;␊
580 TagPtr tmpTag, subTag;␊
581 ␊
582 length = FixDataMatchingTag(buffer, kXMLTagKey);␊
583 if (length == -1) return -1;␊
584 ␊
585 length2 = XMLParseNextTag(buffer + length, &subTag);␊
586 if (length2 == -1) return -1;␊
587 ␊
588 tmpTag = NewTag();␊
589 if (tmpTag == 0)␊
590 {␊
591 XMLFreeTag(subTag);␊
592 return -1;␊
593 }␊
594 ␊
595 string = NewSymbol(buffer);␊
596 if (string == 0)␊
597 {␊
598 XMLFreeTag(subTag);␊
599 XMLFreeTag(tmpTag);␊
600 return -1;␊
601 }␊
602 ␊
603 tmpTag->type = kTagTypeKey;␊
604 tmpTag->string = string;␊
605 tmpTag->tag = subTag;␊
606␉tmpTag->offset = buffer_start ? buffer - buffer_start: 0;␊
607 tmpTag->tagNext = 0;␊
608 ␊
609 *tag = tmpTag;␊
610 ␊
611 return length + length2;␊
612}␊
613␊
614//==========================================================================␊
615// ParseTagString␊
616␊
617static long␊
618ParseTagString( char * buffer, TagPtr * tag )␊
619{␊
620 long length;␊
621 char * string;␊
622 TagPtr tmpTag;␊
623 ␊
624 length = FixDataMatchingTag(buffer, kXMLTagString);␊
625 if (length == -1) return -1;␊
626 ␊
627 tmpTag = NewTag();␊
628 if (tmpTag == 0) return -1;␊
629 ␊
630 string = NewSymbol(buffer);␊
631 if (string == 0)␊
632 {␊
633 XMLFreeTag(tmpTag);␊
634 return -1;␊
635 }␊
636 ␊
637 tmpTag->type = kTagTypeString;␊
638 tmpTag->string = string;␊
639 tmpTag->tag = 0;␊
640␉tmpTag->offset = buffer_start ? buffer - buffer_start: 0;␊
641 tmpTag->tagNext = 0;␊
642 ␊
643 *tag = tmpTag;␊
644 return length;␊
645}␊
646␊
647//==========================================================================␊
648// ParseTagInteger␊
649␊
650static long␊
651ParseTagInteger( char * buffer, TagPtr * tag )␊
652{␊
653 long length, integer;␊
654␉bool negative = false;␊
655 TagPtr tmpTag = 0;␊
656␉char* val = buffer;␊
657 int size;␊
658␉␊
659␉␊
660␉if(buffer[0] == '<') ␊
661␉{␊
662␉␉printf("Warning integer is non existant\n");␊
663␉␉getc();␊
664␉␉tmpTag->type = kTagTypeInteger;␊
665␉␉tmpTag->string = 0;␊
666␉␉tmpTag->tag = 0;␊
667␉␉tmpTag->offset = 0;␊
668␉␉tmpTag->tagNext = 0;␊
669␉␉␊
670␉␉*tag = tmpTag;␊
671␉␉␊
672␉␉return 0;␊
673␉}␊
674␉␊
675 size = length = FixDataMatchingTag(buffer, kXMLTagInteger);␊
676 if (length == -1) return -1;␊
677 ␊
678 tmpTag = NewTag();␊
679 if (tmpTag == 0) return -1;␊
680 ␊
681 integer = 0;␊
682 ␊
683␉if(size > 1 && (val[1] == 'x' || val[1] == 'X'))␉// Hex value␊
684␉{␊
685␉␉val += 2;␊
686␉␉while(*val)␊
687␉␉{␉␉␉␊
688␉␉␉if ((*val >= '0' && *val <= '9'))␉// 0 - 9␊
689␉␉␉{␊
690␉␉␉␉integer = (integer * 16) + (*val++ - '0');␊
691␉␉␉}␊
692␉␉␉else if ((*val >= 'a' && *val <= 'f'))␉// a - f␊
693␉␉␉{␊
694␉␉␉␉integer = (integer * 16) + (*val++ - 'a' + 10);␊
695␉␉␉}␊
696␉␉␉else if ((*val >= 'A' && *val <= 'F'))␉// A - F␊
697␉␉␉{␊
698␉␉␉␉integer = (integer * 16) + (*val++ - 'a' + 10);␊
699␉␉␉}␊
700␉␉␉else␊
701␉␉␉{␊
702␉␉␉␉printf("ParseTagInteger hex error (0x%x) in buffer %s\n", *val, buffer);␊
703␉␉␉␉getc();␊
704␉␉␉␉return -1;␊
705␉␉␉␉␊
706␉␉␉}␊
707 ␊
708␉␉}␊
709␉}␊
710␉else if ( size )␉// Decimal value␊
711␉{␊
712␉␉if (*val == '-')␊
713␉␉{␊
714␉␉␉negative = true;␊
715␉␉␉val++;␊
716␉␉␉size--;␊
717␉␉}␊
718␉␉␊
719␉␉for (integer = 0; size > 0; size--)␊
720␉␉{␊
721␉␉␉if(*val) // UGLY HACK, fix me.␊
722␉␉␉{␊
723␉␉␉␉if (*val < '0' || *val > '9')␊
724␉␉␉␉{␊
725␉␉␉␉␉printf("ParseTagInteger decimal error (0x%x) in buffer %s\n", *val, buffer);␊
726␉␉␉␉␉getc();␊
727␉␉␉␉␉return -1;␊
728␉␉␉␉}␊
729␉␉␉␉␊
730␉␉␉␉integer = (integer * 10) + (*val++ - '0');␊
731␉␉␉}␊
732␉␉}␊
733␉␉␊
734␉␉if (negative)␊
735␉␉␉integer = -integer;␊
736␉}␊
737 ␊
738 tmpTag->type = kTagTypeInteger;␊
739␉tmpTag->string = (char *)integer;␊
740␉tmpTag->tag = 0;␊
741␉tmpTag->offset = buffer_start ? buffer - buffer_start: 0;␊
742 tmpTag->tagNext = 0;␊
743 ␊
744 *tag = tmpTag;␊
745 ␊
746 return length;␊
747}␊
748␊
749//==========================================================================␊
750// ParseTagData␊
751␊
752static long␊
753ParseTagData( char * buffer, TagPtr * tag )␊
754{␊
755 long length;␊
756 TagPtr tmpTag;␊
757 ␊
758 length = FixDataMatchingTag(buffer, kXMLTagData);␊
759 if (length == -1) return -1;␊
760 ␊
761 tmpTag = NewTag();␊
762 if (tmpTag == 0) return -1;␊
763 ␊
764␉//printf("ParseTagData unimplimented\n");␊
765␉//printf("Data: %s\n", buffer);␊
766␉//␉getc();␊
767␉␊
768␉// TODO: base64 decode␊
769␉␊
770␉char* string = NewSymbol(buffer);␊
771 tmpTag->type = kTagTypeData;␊
772 tmpTag->string = string;␊
773 tmpTag->tag = 0;␊
774␉tmpTag->offset = buffer_start ? buffer - buffer_start: 0;␊
775 tmpTag->tagNext = 0;␊
776 ␊
777 *tag = tmpTag;␊
778 ␊
779 return length;␊
780}␊
781␊
782//==========================================================================␊
783// ParseTagDate␊
784␊
785static long␊
786ParseTagDate( char * buffer, TagPtr * tag )␊
787{␊
788 long length;␊
789 TagPtr tmpTag;␊
790 ␊
791 length = FixDataMatchingTag(buffer, kXMLTagDate);␊
792 if (length == -1) return -1;␊
793 ␊
794 tmpTag = NewTag();␊
795 if (tmpTag == 0) return -1;␊
796 ␊
797␉printf("ParseTagDate unimplimented\n");␊
798␉getc();␊
799␉␊
800 tmpTag->type = kTagTypeDate;␊
801 tmpTag->string = 0;␊
802 tmpTag->tag = 0;␊
803␉tmpTag->offset = buffer_start ? buffer - buffer_start: 0;␊
804 tmpTag->tagNext = 0;␊
805 ␊
806 *tag = tmpTag;␊
807 ␊
808 return length;␊
809}␊
810␊
811//==========================================================================␊
812// ParseTagBoolean␊
813␊
814static long␊
815ParseTagBoolean( char * buffer, TagPtr * tag, long type )␊
816{␊
817 TagPtr tmpTag;␊
818 ␊
819 tmpTag = NewTag();␊
820 if (tmpTag == 0) return -1;␊
821 ␊
822 tmpTag->type = type;␊
823 tmpTag->string = 0;␊
824 tmpTag->tag = 0;␊
825␉tmpTag->offset = buffer_start ? buffer - buffer_start: 0;␊
826 tmpTag->tagNext = 0;␊
827 ␊
828 *tag = tmpTag;␊
829 ␊
830 return 0;␊
831}␊
832␊
833//==========================================================================␊
834// GetNextTag␊
835␊
836static long␊
837GetNextTag( char * buffer, char ** tag, long * start )␊
838{␊
839 long cnt, cnt2;␊
840 ␊
841 if (tag == 0) return -1;␊
842 ␊
843 // Find the start of the tag.␊
844 cnt = 0;␊
845 while ((buffer[cnt] != '\0') && (buffer[cnt] != '<')) cnt++;␊
846 if (buffer[cnt] == '\0') return -1;␊
847 ␊
848 // Find the end of the tag.␊
849 cnt2 = cnt + 1;␊
850 while ((buffer[cnt2] != '\0') && (buffer[cnt2] != '>')) cnt2++;␊
851 if (buffer[cnt2] == '\0') return -1;␊
852 ␊
853 // Fix the tag data.␊
854 *tag = buffer + cnt + 1;␊
855 buffer[cnt2] = '\0';␊
856 if (start) *start = cnt;␊
857 ␊
858 return cnt2 + 1;␊
859}␊
860␊
861//==========================================================================␊
862// FixDataMatchingTag␊
863// Modifies 'buffer' to add a '\0' at the end of the tag matching 'tag'.␊
864// Returns the length of the data found, counting the end tag,␊
865// or -1 if the end tag was not found.␊
866␊
867static long␊
868FixDataMatchingTag( char * buffer, char * tag )␊
869{␊
870 long length, start, stop;␊
871 char * endTag;␊
872 ␊
873 start = 0;␊
874 while (1)␊
875 {␊
876 length = GetNextTag(buffer + start, &endTag, &stop);␊
877 if (length == -1) return -1;␊
878 ␊
879 if ((*endTag == '/') && !strcmp(endTag + 1, tag)) break;␊
880 start += length;␊
881 }␊
882 ␊
883 buffer[start + stop] = '\0';␊
884 ␊
885 return start + length;␊
886}␊
887␊
888//==========================================================================␊
889// NewTag␊
890␊
891#define kTagsPerBlock (0x1000)␊
892␊
893static TagPtr gTagsFree;␊
894␊
895static TagPtr␊
896NewTag( void )␊
897{␊
898␉long cnt;␊
899␉TagPtr tag;␊
900 ␊
901 if (gTagsFree == 0)␊
902 {␊
903#if USEMALLOC␊
904 tag = (TagPtr)malloc(kTagsPerBlock * sizeof(Tag));␊
905#else␊
906 tag = (TagPtr)AllocateBootXMemory(kTagsPerBlock * sizeof(Tag));␊
907#endif␊
908 if (tag == 0) return 0;␊
909 ␊
910 // Initalize the new tags.␊
911 for (cnt = 0; cnt < kTagsPerBlock; cnt++)␊
912 {␊
913 tag[cnt].type = kTagTypeNone;␊
914 tag[cnt].string = 0;␊
915 tag[cnt].tag = 0;␊
916 tag[cnt].tagNext = tag + cnt + 1;␊
917 }␊
918 tag[kTagsPerBlock - 1].tagNext = 0;␊
919 ␊
920 gTagsFree = tag;␊
921 }␊
922 ␊
923 tag = gTagsFree;␊
924 gTagsFree = tag->tagNext;␊
925 ␊
926 return tag;␊
927}␊
928␊
929//==========================================================================␊
930// XMLFreeTag␊
931␊
932void␊
933XMLFreeTag( TagPtr tag )␊
934{␊
935#if DOFREE␊
936 if (tag == 0) return;␊
937 ␊
938 if (tag->string) FreeSymbol(tag->string);␊
939 ␊
940 XMLFreeTag(tag->tag);␊
941 XMLFreeTag(tag->tagNext);␊
942 ␊
943 // Clear and free the tag.␊
944 tag->type = kTagTypeNone;␊
945 tag->string = 0;␊
946 tag->tag = 0;␊
947␉tag->offset = 0;␊
948 tag->tagNext = gTagsFree;␊
949 gTagsFree = tag;␊
950#else␊
951 return;␊
952#endif␊
953}␊
954␊
955//==========================================================================␊
956// Symbol object.␊
957␊
958struct Symbol␊
959{␊
960 long refCount;␊
961 struct Symbol *next;␊
962 char string[];␊
963};␊
964typedef struct Symbol Symbol, *SymbolPtr;␊
965␊
966static SymbolPtr FindSymbol(char * string, SymbolPtr * prevSymbol);␊
967␊
968static SymbolPtr gSymbolsHead;␊
969␊
970//==========================================================================␊
971// NewSymbol␊
972␊
973static char *␊
974NewSymbol( char * string )␊
975{␊
976 static SymbolPtr lastGuy = 0;␊
977␉SymbolPtr symbol;␊
978 ␊
979 // Look for string in the list of symbols.␊
980 symbol = FindSymbol(string, 0);␊
981 ␊
982 // Add the new symbol.␊
983 if (symbol == 0)␊
984 {␊
985#if USEMALLOC␊
986 symbol = (SymbolPtr)malloc(sizeof(Symbol) + 1 + strlen(string));␊
987#else␊
988 symbol = (SymbolPtr)AllocateBootXMemory(sizeof(Symbol) + 1 + strlen(string));␊
989#endif␊
990 if (symbol == 0) { ␊
991 stop("NULL symbol!"); ␊
992 return 0;␊
993 }␊
994 // Set the symbol's data.␊
995 symbol->refCount = 0;␊
996 strcpy(symbol->string, string);␊
997 ␊
998 // Add the symbol to the list.␊
999 symbol->next = gSymbolsHead;␊
1000 gSymbolsHead = symbol;␊
1001 }␊
1002 ␊
1003 // Update the refCount and return the string.␊
1004 symbol->refCount++;␊
1005 ␊
1006 if (lastGuy && lastGuy->next != 0) stop("last guy not last!");␊
1007 return symbol->string;␊
1008}␊
1009␊
1010//==========================================================================␊
1011// FreeSymbol␊
1012␊
1013#if DOFREE␊
1014static void␊
1015FreeSymbol( char * string )␊
1016{ ␊
1017 SymbolPtr symbol, prev;␊
1018␉prev = 0;␊
1019 ␊
1020 // Look for string in the list of symbols.␊
1021 symbol = FindSymbol(string, &prev);␊
1022 if (symbol == 0) return;␊
1023 ␊
1024 // Update the refCount.␊
1025 symbol->refCount--;␊
1026 ␊
1027 if (symbol->refCount != 0) return;␊
1028 ␊
1029 // Remove the symbol from the list.␊
1030 if (prev != 0) prev->next = symbol->next;␊
1031 else gSymbolsHead = symbol->next;␊
1032 ␊
1033 // Free the symbol's memory.␊
1034 free(symbol);␊
1035}␊
1036#endif␊
1037␊
1038//==========================================================================␊
1039// FindSymbol␊
1040␊
1041static SymbolPtr␊
1042FindSymbol( char * string, SymbolPtr * prevSymbol )␊
1043{␊
1044 SymbolPtr symbol, prev;␊
1045 ␊
1046 symbol = gSymbolsHead;␊
1047 prev = 0;␊
1048 ␊
1049 while (symbol != 0) {␊
1050 if (!strcmp(symbol->string, string)) break;␊
1051 ␊
1052 prev = symbol;␊
1053 symbol = symbol->next;␊
1054 }␊
1055 ␊
1056 if ((symbol != 0) && (prevSymbol != 0)) *prevSymbol = prev;␊
1057 ␊
1058 return symbol;␊
1059}␊
1060␊
1061␊
1062␊
1063bool XMLIsType(TagPtr dict, enum xmltype type)␊
1064{␊
1065␉if(!dict) return (type == kTagTypeNone);␊
1066␉return (dict->type == (long)type);␊
1067}␊
1068␊
1069␊
1070/*** Cast functions ***/␊
1071TagPtr XMLCastArray(TagPtr dict)␊
1072{␊
1073␉if(!dict) return NULL;␊
1074␉if(dict->type == kTagTypeArray) return dict;␊
1075␉else return NULL;␊
1076}␊
1077␊
1078␊
1079TagPtr XMLCastDict(TagPtr dict)␊
1080{␊
1081␉if(!dict) return NULL;␊
1082␉if(dict->type == kTagTypeDict) return dict;␊
1083␉else return NULL;␊
1084}␊
1085␊
1086char* XMLCastString(TagPtr dict)␊
1087{␊
1088␉if(!dict) return NULL;␊
1089 ␊
1090␉if((dict->type == kTagTypeString) ||␊
1091␉ (dict->type == kTagTypeKey)) return dict->string;␊
1092␉␊
1093␉return NULL;␊
1094}␊
1095␊
1096long XMLCastStringOffset(TagPtr dict)␊
1097{␊
1098␉if(dict &&␊
1099␉ ((dict->type == kTagTypeString) ||␊
1100 (dict->type == kTagTypeKey)))␊
1101␉{␊
1102␉␉return dict->offset;␊
1103␉}␊
1104␉else ␊
1105␉{␊
1106␉␉return -1;␊
1107␉}␊
1108}␊
1109␊
1110␊
1111bool XMLCastBoolean(TagPtr dict)␊
1112{␊
1113␉if(!dict) return false;␊
1114␉if(dict->type == kTagTypeTrue) return true;␊
1115␉return false;␊
1116}␊
1117␊
1118int XMLCastInteger(TagPtr dict)␊
1119{␊
1120␉if(!dict)␊
1121␉{␊
1122␉␉printf("XMLCastInteger: null dict\n");␊
1123␉␉return 0;␊
1124␉}␊
1125␉if(dict->type == kTagTypeInteger) return (int)(dict->string);␊
1126␉return 0;␊
1127}␊
1128

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