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1/*␊
2 * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.␊
3 *␊
4 * @APPLE_LICENSE_HEADER_START@␊
5 * ␊
6 * Portions Copyright (c) 1999-2003 Apple Computer, Inc. All Rights␊
7 * Reserved. This file contains Original Code and/or Modifications of␊
8 * Original Code as defined in and that are subject to the Apple Public␊
9 * Source License Version 2.0 (the "License"). You may not use this file␊
10 * except in compliance with the License. Please obtain a copy of the␊
11 * License at http://www.apple.com/publicsource and read it before using␊
12 * this file.␊
13 * ␊
14 * The 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 * Copyright 1993 NeXT, Inc.␊
26 * All rights reserved.␊
27 */␊
28␊
29#include "libsaio.h"␊
30#include "bootstruct.h"␊
31#include "platform.h"␊
32#include "xml.h"␊
33␊
34static char * AllocInitStringWithLength(const char * oldString, int len);␊
35static char * AllocInitZeroEndedStringWithLength(const char * oldString, int len);␊
36␊
37#ifndef MIN␊
38#define MIN(x, y) ((x) < (y) ? (x) : (y))␊
39#endif␊
40␊
41#define ASSERT_CONFIG \␊
42if (config == DEFAULT_BOOT_CONFIG) \␊
43config = &bootInfo->bootConfig ; \␊
44else if (config == DEFAULT_SYSTEM_CONFIG) \␊
45config = &bootInfo->SystemConfig ; \␊
46else if (config == DEFAULT_OVERRIDE_CONFIG) \␊
47config = &bootInfo->overrideConfig ; \␊
48else if (config == DEFAULT_SMBIOS_CONFIG) \␊
49config = &bootInfo->smbiosConfig ; \␊
50else if (config == DEFAULT_HELPER_CONFIG) \␊
51config = &bootInfo->helperConfig ; ␊
52␊
53#if UNUSED␊
54/*␊
55 * Compare a string to a key with quoted characters␊
56 */␊
57static inline int␊
58keyncmp(const char *str, const char *key, int n)␊
59{␊
60 int c;␊
61 while (n--) {␊
62␉␉c = *key++;␊
63␉␉if (c == '\\') {␊
64␉␉␉switch(c = *key++) {␊
65␉␉␉␉case 'n':␊
66␉␉␉␉␉c = '\n';␊
67␉␉␉␉␉break;␊
68␉␉␉␉case 'r':␊
69␉␉␉␉␉c = '\r';␊
70␉␉␉␉␉break;␊
71␉␉␉␉case 't':␊
72␉␉␉␉␉c = '\t';␊
73␉␉␉␉␉break;␊
74␉␉␉␉default:␊
75␉␉␉␉␉break;␊
76␉␉␉}␊
77␉␉} else if (c == '\"') {␊
78␉␉␉/* Premature end of key */␊
79␉␉␉return 1;␊
80␉␉}␊
81␉␉if (c != *str++) {␊
82␉␉␉return 1;␊
83␉␉}␊
84 }␊
85 return 0;␊
86}␊
87␊
88static void eatThru(char val, const char **table_p)␊
89{␊
90␉register const char *table = *table_p;␊
91␉register bool found = false;␊
92␉␊
93␉while (*table && !found)␊
94␉{␊
95␉␉if (*table == '\\') table += 2;␊
96␉␉else␊
97␉␉{␊
98␉␉␉if (*table == val) found = true;␊
99␉␉␉table++;␊
100␉␉}␊
101␉}␊
102␉*table_p = table;␊
103}␊
104␊
105/* Remove key and its associated value from the table. */␊
106␊
107bool␊
108removeKeyFromTable(const char *key, char *table)␊
109{␊
110 register int len;␊
111 register char *tab;␊
112 char *buf;␊
113␉␊
114 len = strlen(key);␊
115 tab = (char *)table;␊
116 buf = (char *)malloc(len + 3);␊
117␉␊
118 sprintf(buf, "\"%s\"", key);␊
119 len = strlen(buf);␊
120␉␊
121 while(*tab) {␊
122 if(strncmp(buf, tab, len) == 0) {␊
123 char c;␊
124␉␉␉␊
125 while((c = *(tab + len)) != ';') {␊
126 if(c == 0) {␊
127 len = -1;␊
128 goto out;␊
129 }␊
130 len++;␊
131 }␊
132 len++;␊
133 if(*(tab + len) == '\n') len++;␊
134 goto out;␊
135 }␊
136 tab++;␊
137 }␊
138 len = -1;␊
139out:␊
140 free(buf);␊
141␉␊
142 if(len == -1) return false;␊
143␉␊
144 while((*tab = *(tab + len))) {␊
145 tab++;␊
146 }␊
147␉␊
148 return true;␊
149}␊
150␊
151char *␊
152newStringFromList(␊
153␉␉␉␉ char **list,␊
154␉␉␉␉ int *size␊
155␉␉␉␉ )␊
156{␊
157 char *begin = *list, *end;␊
158 char *newstr;␊
159 int newsize = *size;␊
160 int bufsize;␊
161 ␊
162 while (*begin && newsize && isspace(*begin)) {␊
163␉␉begin++;␊
164␉␉newsize--;␊
165 }␊
166 end = begin;␊
167 while (*end && newsize && !isspace(*end)) {␊
168␉␉end++;␊
169␉␉newsize--;␊
170 }␊
171 if (begin == end)␊
172␉␉return 0;␊
173 bufsize = end - begin + 1;␊
174 newstr = malloc(bufsize);␊
175 strlcpy(newstr, begin, bufsize);␊
176 *list = end;␊
177 *size = newsize;␊
178 return newstr;␊
179}␊
180␊
181/* ␊
182 * compress == compress escaped characters to one character␊
183 */␊
184int stringLength(const char *table, int compress)␊
185{␊
186␉int ret = 0;␊
187␉␊
188␉while (*table)␊
189␉{␊
190␉␉if (*table == '\\')␊
191␉␉{␊
192␉␉␉table += 2;␊
193␉␉␉ret += 1 + (compress ? 0 : 1);␊
194␉␉}␊
195␉␉else␊
196␉␉{␊
197␉␉␉if (*table == '\"') return ret;␊
198␉␉␉ret++;␊
199␉␉␉table++;␊
200␉␉}␊
201␉}␊
202␉return ret;␊
203}␊
204#endif␊
205␊
206bool getValueForConfigTableKey(config_file_t *config, const char *key, const char **val, int *size)␊
207{␊
208 ASSERT_CONFIG␊
209 ␊
210␉if (config->dictionary != 0 ) {␊
211␉␉// Look up key in XML dictionary␊
212␉␉TagPtr value;␊
213␉␉value = XMLGetProperty(config->dictionary, key);␊
214␉␉if (value != 0) {␊
215␉␉␉if (value->type != kTagTypeString) {␊
216␉␉␉␉error("Non-string tag '%s' found in config file\n",␊
217␉␉␉␉␉ key);␊
218␉␉␉␉return false;␊
219␉␉␉}␊
220␉␉␉*val = value->string;␊
221␉␉␉*size = strlen(value->string);␊
222␉␉␉return true;␊
223␉␉}␊
224␉} else {␊
225␉␉␊
226␉␉// Legacy plist-style table␊
227␉␉␊
228␉}␊
229␉␊
230␉return false;␊
231}␊
232␊
233#if UNUSED␊
234␊
235/*␊
236 * Returns a new malloc'ed string if one is found␊
237 * in the string table matching 'key'. Also translates␊
238 * \n escapes in the string.␊
239 */␊
240char *newStringForStringTableKey(␊
241␉␉␉␉␉␉␉␉ char *table,␊
242␉␉␉␉␉␉␉␉ char *key,␊
243␉␉␉␉␉␉␉␉ config_file_t *config␊
244␉␉␉␉␉␉␉␉ )␊
245{␊
246 const char *val;␊
247 char *newstr, *p;␊
248 int size;␊
249 ␊
250 ASSERT_CONFIG␊
251 ␊
252 if (getValueForConfigTableKey(config, key, &val, &size)) {␊
253␉␉newstr = (char *)malloc(size+1);␊
254␉␉for (p = newstr; size; size--, p++, val++) {␊
255␉␉␉if ((*p = *val) == '\\') {␊
256␉␉␉␉switch (*++val) {␊
257␉␉␉␉␉case 'r':␊
258␉␉␉␉␉␉*p = '\r';␊
259␉␉␉␉␉␉break;␊
260␉␉␉␉␉case 'n':␊
261␉␉␉␉␉␉*p = '\n';␊
262␉␉␉␉␉␉break;␊
263␉␉␉␉␉case 't':␊
264␉␉␉␉␉␉*p = '\t';␊
265␉␉␉␉␉␉break;␊
266␉␉␉␉␉default:␊
267␉␉␉␉␉␉*p = *val;␊
268␉␉␉␉␉␉break;␊
269␉␉␉␉}␊
270␉␉␉␉size--;␊
271␉␉␉}␊
272␉␉}␊
273␉␉*p = '\0';␊
274␉␉return newstr;␊
275 } else {␊
276␉␉return 0;␊
277 }␊
278}␊
279␊
280#endif␊
281␊
282char *␊
283newStringForKey(char *key, config_file_t *config)␊
284{␊
285 const char *val;␊
286 char *newstr;␊
287 int size;␊
288 ␊
289 ASSERT_CONFIG␊
290 ␊
291 if (getValueForKey(key, &val, &size, config) && size) {␊
292␉␉newstr = (char *)malloc(size + 1);␊
293␉␉strlcpy(newstr, val, size + 1);␊
294␉␉return newstr;␊
295 } else {␊
296␉␉return 0;␊
297 }␊
298}␊
299␊
300/* parse a command line␊
301 * in the form: [<argument> ...] [<option>=<value> ...]␊
302 * both <option> and <value> must be either composed of␊
303 * non-whitespace characters, or enclosed in quotes.␊
304 */␊
305␊
306static const char *getToken(const char *line, const char **begin, int *len)␊
307{␊
308 if (*line == '\"') {␊
309␉␉*begin = ++line;␊
310␉␉while (*line && *line != '\"')␊
311␉␉␉line++;␊
312␉␉*len = line++ - *begin;␊
313 } else {␊
314␉␉*begin = line;␊
315␉␉while (*line && !isspace(*line) && *line != '=')␊
316␉␉␉line++;␊
317␉␉*len = line - *begin;␊
318 }␊
319 return line;␊
320}␊
321␊
322bool getValueForBootKey(const char *line, const char *match, const char **matchval, int *len)␊
323{␊
324 const char *key, *value;␊
325 int key_len, value_len;␊
326 bool retval = false;␊
327 ␊
328 while (*line) {␊
329␉␉/* look for keyword or argument */␊
330␉␉while (isspace(*line)) line++;␊
331␉␉␊
332␉␉/* now look for '=' or whitespace */␊
333␉␉line = getToken(line, &key, &key_len);␊
334␉␉/* line now points to '=' or space */␊
335␉␉if (*line && !isspace(*line)) {␊
336␉␉␉line = getToken(++line, &value, &value_len);␊
337␉␉} else {␊
338␉␉␉value = line;␊
339␉␉␉value_len = 0;␊
340␉␉}␊
341␉␉if ((strlen(match) == key_len)␊
342␉␉␉&& strncmp(match, key, key_len) == 0) {␊
343␉␉␉*matchval = value;␊
344␉␉␉*len = value_len;␊
345␉␉␉retval = true;␊
346 /* Continue to look for this key; last one wins. */␊
347␉␉}␊
348 }␊
349 return retval;␊
350}␊
351␊
352/* Return NULL if no option has been successfully retrieved, or the string otherwise */␊
353const char * getStringForKey(const char * key, config_file_t *config)␊
354{␊
355␉static const char* value =0;␊
356␉int len=0;␊
357 ␊
358 ASSERT_CONFIG␊
359 ␊
360␉if(!getValueForKey(key, &value, &len, config)) value = 0;␊
361␉return value;␊
362}␊
363␊
364␊
365/* Returns TRUE if a value was found, FALSE otherwise.␊
366 * The boolean value of the key is stored in 'val'.␊
367 */␊
368␊
369bool getBoolForKey( const char *key, bool *result_val, config_file_t *config )␊
370{␊
371 const char *key_val;␊
372 int size;␊
373 ␊
374 ASSERT_CONFIG␊
375 ␊
376 if (getValueForKey(key, &key_val, &size, config)) {␊
377 if ( (size >= 1) && (key_val[0] == 'Y' || key_val[0] == 'y') ) {␊
378 *result_val = true;␊
379 } else {␊
380 *result_val = false;␊
381 }␊
382 return true;␊
383 }␊
384 return false;␊
385}␊
386␊
387bool getIntForKey( const char *key, int *value, config_file_t *config )␊
388{␊
389 const char *val;␊
390 int size, sum;␊
391 bool negative = false;␊
392 ␊
393 ASSERT_CONFIG␊
394 ␊
395 if (getValueForKey(key, &val, &size, config))␊
396␉{␊
397␉␉if ( size )␊
398␉␉{␊
399␉␉␉if (*val == '-')␊
400␉␉␉{␊
401␉␉␉␉negative = true;␊
402␉␉␉␉val++;␊
403␉␉␉␉size--;␊
404␉␉␉}␊
405␉␉␉␊
406␉␉␉for (sum = 0; size > 0; size--)␊
407␉␉␉{␊
408␉␉␉␉if (*val < '0' || *val > '9')␊
409␉␉␉␉␉return false;␊
410␉␉␉␉␊
411␉␉␉␉sum = (sum * 10) + (*val++ - '0');␊
412␉␉␉}␊
413␉␉␉␊
414␉␉␉if (negative)␊
415␉␉␉␉sum = -sum;␊
416␉␉␉␊
417␉␉␉*value = sum;␊
418␉␉␉return true;␊
419␉␉}␊
420␉}␊
421 return false;␊
422}␊
423␊
424/*␊
425 *␊
426 */␊
427␊
428bool getDimensionForKey( const char *key, unsigned int *value, config_file_t *config, unsigned int dimension_max, unsigned int object_size )␊
429{␊
430␉const char *val;␊
431␉␊
432 int size = 0;␊
433␉int sum = 0;␊
434 ␊
435␉bool negative = false;␊
436␉bool percentage = false;␊
437 ␊
438 ASSERT_CONFIG␊
439␉␊
440 if (getValueForKey(key, &val, &size, config))␊
441␉{␊
442␉␉if ( size )␊
443␉␉{␊
444␉␉␉if (*val == '-')␊
445␉␉␉{␊
446␉␉␉␉negative = true;␊
447␉␉␉␉val++;␊
448␉␉␉␉size--;␊
449␉␉␉}␊
450␉␉␉␊
451␉␉␉if (val[size-1] == '%')␊
452␉␉␉{␊
453␉␉␉␉percentage = true;␊
454␉␉␉␉size--;␊
455␉␉␉}␊
456␉␉␉␊
457␉␉␉// convert string to integer␊
458␉␉␉for (sum = 0; size > 0; size--)␊
459␉␉␉{␊
460␉␉␉␉if (*val < '0' || *val > '9')␊
461␉␉␉␉␉return false;␊
462␉␉␉␉␊
463␉␉␉␉sum = (sum * 10) + (*val++ - '0');␊
464␉␉␉}␊
465␉␉␉␊
466␉␉␉if (percentage)␊
467␉␉␉␉sum = ( dimension_max * sum ) / 100;␊
468␉␉␉␊
469␉␉␉// calculate offset from opposite origin␊
470␉␉␉if (negative)␊
471␉␉␉␉sum = ( ( dimension_max - object_size ) - sum );␊
472␉␉␉␊
473␉␉} else {␊
474␉␉␉␊
475␉␉␉// null value calculate center␊
476␉␉␉sum = ( dimension_max - object_size ) / 2;␊
477␉␉␉␊
478␉␉}␊
479␉␉␊
480␉␉*value = (uint16_t) sum;␊
481␉␉return true;␊
482␉}␊
483␉␊
484␉// key not found␊
485 return false;␊
486} ␊
487␊
488/*␊
489 *␉get color value from plist format #RRGGBB␊
490 */␊
491␊
492bool getColorForKey( const char *key, unsigned int *value, config_file_t *config )␊
493{␊
494 const char *val;␊
495 int size;␊
496 ␊
497 ASSERT_CONFIG␊
498 ␊
499 if (getValueForKey(key, &val, &size, config))␊
500␉{␊
501␉␉if (*val == '#')␊
502␉␉{␊
503 val++;␊
504␉␉␉*value = strtol(val, NULL, 16);␊
505␉␉␉return true;␊
506 }␊
507 }␊
508 return false;␊
509}␊
510␊
511bool getValueForKey( const char *key, const char **val, int *size, config_file_t *config )␊
512{␊
513 const char *overrideVal;␊
514 int overrideSize;␊
515 bool ret; ␊
516 ␊
517 if (getValueForBootKey(bootArgs->CommandLine, key, val, size))␊
518 return true;␊
519 ␊
520 ASSERT_CONFIG␊
521 ␊
522 ret = getValueForConfigTableKey(config, key, val, size);␊
523 ␊
524 // Try to find alternate keys in bootInfo->overrideConfig␊
525 // and prefer its values with the exceptions for␊
526 // "Kernel"="mach_kernel" and "Kernel Flags"="".␊
527 ␊
528 if (config->canOverride)␊
529 {␊
530 if (getValueForConfigTableKey(&bootInfo->overrideConfig, key, &overrideVal, &overrideSize) && overrideSize)␊
531 {␊
532 *val = overrideVal;␊
533 *size = overrideSize;␊
534 return true;␉␉␊
535 }␊
536 else if (getValueForConfigTableKey(&bootInfo->SystemConfig, key, &overrideVal, &overrideSize) && overrideSize)␊
537 {␊
538 *val = overrideVal;␊
539 *size = overrideSize;␊
540 return true;␉␉␊
541 }␊
542 }␊
543 ␊
544 return ret;␊
545}␊
546␊
547␊
548#if UNUSED␊
549void␊
550printSystemConfig(char *p1)␊
551{␊
552 char *p2 = p1, tmp;␊
553␉␊
554 while (*p1 != '\0') {␊
555␉␉while (*p2 != '\0' && *p2 != '\n') p2++;␊
556␉␉tmp = *p2;␊
557␉␉*p2 = '\0';␊
558␉␉printf("%s\n", p1);␊
559␉␉*p2 = tmp;␊
560␉␉if (tmp == '\0') break;␊
561␉␉p1 = ++p2;␊
562 }␊
563}␊
564#endif␊
565␊
566//==========================================================================␊
567// ParseXMLFile␊
568// Modifies the input buffer.␊
569// Expects to see one dictionary in the XML file.␊
570// Puts the first dictionary it finds in the␊
571// tag pointer and returns 0, or returns -1 if not found␊
572// (and does not modify dict pointer).␊
573// Prints an error message if there is a parsing error.␊
574//␊
575int ParseXMLFile( char * buffer, TagPtr * dict )␊
576{␊
577 long length, pos;␊
578 TagPtr tag;␊
579 pos = 0;␊
580 char *configBuffer;␊
581␉␊
582 configBuffer = malloc(strlen(buffer)+1);␊
583 if (!configBuffer) {␊
584 return -1;␊
585 } ␊
586 ␊
587 strcpy(configBuffer, buffer);␊
588␉␊
589 while (1)␊
590 {␊
591 length = XMLParseNextTag(configBuffer + pos, &tag);␊
592 if (length == -1) break;␊
593␉␉␊
594 pos += length;␊
595␉␉␊
596 if (tag == 0) continue;␊
597 if (tag->type == kTagTypeDict) break;␊
598␉␉␊
599 XMLFreeTag(tag);␊
600 }␊
601 free(configBuffer);␊
602 if (length < 0) {␊
603 error ("Error parsing plist file\n");␊
604 return -1;␊
605 }␊
606 *dict = tag;␊
607 return 0;␊
608}␊
609␊
610/* loadConfigFile␊
611 *␊
612 * Returns 0 - successful.␊
613 *␉␉ -1 - unsuccesful.␊
614 */␊
615int loadConfigFile (const char *configFile, config_file_t *config)␊
616{␊
617␉int fd, count, fixedsize;␊
618 ␊
619 ASSERT_CONFIG␊
620 ␊
621␉if ((fd = open(configFile)) < 0) {␊
622␉␉return -1;␊
623␉}␊
624␉␊
625 fixedsize = MIN(file_size(fd),IO_CONFIG_DATA_SIZE);␊
626 ␊
627␉// read file␊
628␉count = read(fd, config->plist, fixedsize);␊
629␉close(fd);␊
630 if (count != fixedsize) return -1;␊
631␊
632␉// build xml dictionary␉␊
633␉return ParseXMLFile(config->plist, &config->dictionary);␊
634}␊
635␊
636/* loadBooterConfig␊
637 *␊
638 * Returns 0 - successful.␊
639 *␉␉ -1 - unsuccesful.␊
640 */␊
641int loadBooterConfig(void)␊
642{␊
643␉char *dirspec[] = {␉␉␉␉␉␉␉ ␊
644␉␉"rd(0,0)/Extra/com.apple.Boot.plist", ␊
645␉␉"/Extra/com.apple.Boot.plist",␊
646␉␉"bt(0,0)/Extra/com.apple.Boot.plist",␊
647␉␉"rd(0,0)/Extra/org.chameleon.Boot.plist", // Add compatibility with the trunk ␊
648␉␉"/Extra/org.chameleon.Boot.plist", // Add compatibility with the trunk ␊
649␉␉"bt(0,0)/Extra/org.chameleon.Boot.plist" // Add compatibility with the trunk␉␉␊
650 ␊
651␉};␊
652 ␊
653 config_file_t *config = &bootInfo->bootConfig;␊
654 ␊
655␉int i, fd, count, ret=-1, fixedsize;␊
656 ␊
657␉for(i = 0; (unsigned)i< sizeof(dirspec)/sizeof(dirspec[0]); i++)␊
658␉{␊
659␉␉if ((fd = open(dirspec[i])) >= 0)␊
660␉␉{␊
661␉␉␉// read file␊
662 fixedsize = MIN(file_size(fd),IO_CONFIG_DATA_SIZE);␊
663␉␉␉count = read(fd, config->plist, fixedsize);␊
664␉␉␉close(fd);␊
665 if (count != fixedsize) continue;␊
666␊
667␉␉␉// build xml dictionary␊
668␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
669 safe_set_env(envSysConfigValid,true);␊
670␉␉␉ret=0;␊
671␉␉␉␊
672␉␉␉// enable canOverride flag␊
673␉␉␉config->canOverride = true;␊
674 ␊
675␉␉␉break;␊
676␉␉}␊
677␉}␊
678#ifdef BOOT_HELPER_SUPPORT␊
679␉if(ret == -1)␊
680␉{␊
681␉␉ret = loadHelperConfig();␊
682␉}␊
683#endif␊
684␉␊
685␉return ret;␊
686}␊
687␊
688/* loadOverrideConfig␊
689 *␊
690 * Returns 0 - successful.␊
691 *␉␉ -1 - unsuccesful.␊
692 */␊
693int loadOverrideConfig(void)␊
694{␊
695␉char *dirspec[] = {␊
696␉␉"/Extra/com.apple.Boot.plist", ␊
697␉␉"/Extra/org.chameleon.Boot.plist" ␊
698␉};␊
699 ␊
700 config_file_t *config = &bootInfo->overrideConfig;␊
701␊
702 ␊
703␉int i, fd, count, ret=-1, fixedsize;␊
704 ␊
705␉for(i = 0; (unsigned)i< sizeof(dirspec)/sizeof(dirspec[0]); i++)␊
706␉{␊
707␉␉if ((fd = open(dirspec[i])) >= 0)␊
708␉␉{␊
709␉␉␉// read file␊
710␉␉␉fixedsize = MIN(file_size(fd),IO_CONFIG_DATA_SIZE); ␊
711␉␉␉count = read(fd, config->plist, fixedsize);␊
712␉␉␉close(fd);␊
713 if (count != fixedsize) continue;␊
714␉␉␉␊
715␉␉␉// build xml dictionary␊
716␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
717 safe_set_env(envSysConfigValid,true);␊
718␉␉␉ret=0;␊
719␉␉␉break;␊
720␉␉}␊
721␉}␊
722#ifdef BOOT_HELPER_SUPPORT␉␊
723␉if(ret == -1)␊
724␉{␊
725␉␉ret = loadHelperConfig();␊
726␉}␊
727#endif␊
728 ␊
729␉return ret;␊
730}␊
731␊
732/* loadSystemConfig␊
733 *␊
734 * Returns 0 - successful.␊
735 *␉␉ -1 - unsuccesful.␊
736 */␊
737int loadSystemConfig(void)␊
738{␊
739␉char *dirspec[] = {␊
740 "rd(0,0)/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
741␉␉"/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
742␉␉"bt(0,0)/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
743 "rd(0,0)/OS X Install Data/com.apple.Boot.plist",␊
744␉␉"/OS X Install Data/com.apple.Boot.plist",␊
745␉␉"bt(0,0)/OS X Install Data/com.apple.Boot.plist",␊
746 "rd(0,0)/Mac OS X Install Data/com.apple.Boot.plist",␊
747␉␉"/Mac OS X Install Data/com.apple.Boot.plist",␊
748␉␉"bt(0,0)/Mac OS X Install Data/com.apple.Boot.plist"␊
749␉};␊
750 ␊
751 config_file_t *config = &bootInfo->SystemConfig;␊
752␊
753 ␊
754␉int i, fd, count, ret=-1, fixedsize;␊
755␉␊
756␉for(i = 0; (unsigned)i< sizeof(dirspec)/sizeof(dirspec[0]); i++)␊
757␉{␊
758␉␉if ((fd = open(dirspec[i])) >= 0)␊
759␉␉{␊
760␉␉␉// read file␊
761␉␉␉fixedsize = MIN(file_size(fd),IO_CONFIG_DATA_SIZE); ␊
762␉␉␉count = read(fd, config->plist, fixedsize);␊
763␉␉␉close(fd);␊
764 if (count != fixedsize) continue;␊
765␉␉␉␊
766␉␉␉// build xml dictionary␊
767␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
768 safe_set_env(envSysConfigValid,true);␊
769␉␉␉ret=0;␉␉␉␊
770␉␉␉break;␊
771␉␉}␊
772␉}␊
773␉␊
774␉return ret;␊
775}␊
776␊
777#ifdef BOOT_HELPER_SUPPORT␊
778␊
779/* loadHelperConfig␊
780 *␊
781 * Returns 0 - successful.␊
782 *␉␉ -1 - unsuccesful.␊
783 */␊
784int loadHelperConfig(void)␊
785{␊
786␉int rfd, pfd, sfd, count, ret=-1, fixedsize;␊
787␉␊
788␉char *dirspec[] = {␊
789␉␉"/com.apple.boot.P/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
790␉␉"/com.apple.boot.R/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
791␉␉"/com.apple.boot.S/Library/Preferences/SystemConfiguration/com.apple.Boot.plist"␊
792␉};␊
793␉␊
794 config_file_t *config = &bootInfo->helperConfig;␊
795 ␊
796 ␊
797␉// This is a simple rock - paper scissors algo. R beats S, P beats R, S beats P␊
798␉// If all three, S is used for now. This should be change dto something else (say, timestamp?)␊
799␉␊
800␉pfd = open(dirspec[0]);␊
801␉if(pfd >= 0)␉// com.apple.boot.P exists␊
802␉{␊
803␉␉sfd = open(dirspec[2]); // com.apple.boot.S takes precidence if it also exists␊
804␉␉if(sfd >= 0)␊
805␉␉{␊
806␉␉␉// Use sfd␊
807 fixedsize = MIN(file_size(sfd),IO_CONFIG_DATA_SIZE);␊
808␉␉␉count = read(sfd, config->plist, fixedsize);␊
809␉␉␉close(sfd);␊
810␉␉␉close(pfd); ␊
811 if (count != fixedsize) return -1;␊
812 ␊
813␉␉␉// build xml dictionary␊
814␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
815 safe_set_env(envSysConfigValid,true);␊
816␉␉␉ret=0;␊
817␉␉␉␊
818␉␉}␊
819␉␉else␊
820␉␉{␊
821␉␉␉// used pfd␊
822 fixedsize = MIN(file_size(pfd),IO_CONFIG_DATA_SIZE);␊
823␉␉␉count = read(pfd, config->plist, fixedsize);␊
824␉␉␉close(pfd);␊
825 if (count != fixedsize) return -1;␊
826␊
827␉␉␉// build xml dictionary␊
828␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
829 safe_set_env(envSysConfigValid,true);␊
830␉␉␉ret=0;␊
831␉␉}␊
832␉␉␊
833␉}␊
834␉else␊
835␉{␊
836␉␉rfd = open(dirspec[1]); // com.apple.boot.R exists␊
837␉␉if(rfd >= 0)␊
838␉␉{␊
839␉␉␉pfd = open(dirspec[2]); // com.apple.boot.P takes recidence if it exists␊
840␉␉␉if(pfd >= 0)␊
841␉␉␉{␊
842␉␉␉␉// use sfd␊
843 fixedsize = MIN(file_size(pfd),IO_CONFIG_DATA_SIZE);␊
844␉␉␉␉count = read(pfd, config->plist, fixedsize);␊
845␉␉␉␉close(pfd);␊
846␉␉␉␉close(rfd);␊
847 if (count != fixedsize) return -1;␊
848␊
849␉␉␉␉// build xml dictionary␊
850␉␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
851 safe_set_env(envSysConfigValid,true);␊
852␉␉␉␉ret=0;␊
853␉␉␉␉␊
854␉␉␉}␊
855␉␉␉else␊
856␉␉␉{␊
857␉␉␉␉// use rfd␊
858 fixedsize = MIN(file_size(rfd),IO_CONFIG_DATA_SIZE);␊
859␉␉␉␉count = read(rfd, config->plist, fixedsize);␊
860␉␉␉␉close(rfd);␊
861 if (count != fixedsize) return -1;␊
862␊
863␉␉␉␉// build xml dictionary␊
864␉␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
865 safe_set_env(envSysConfigValid,true);␊
866␉␉␉␉ret=0;␊
867␉␉␉␉␊
868␉␉␉}␊
869␉␉␉␊
870␉␉}␊
871␉␉else␊
872␉␉{␊
873␉␉␉sfd = open(dirspec[2]); // com.apple.boot.S exists, but nothing else does␊
874␉␉␉if(sfd >= 0)␊
875␉␉␉{␊
876␉␉␉␉// use sfd␊
877 fixedsize = MIN(file_size(sfd),IO_CONFIG_DATA_SIZE);␊
878␉␉␉␉count = read(sfd, config->plist, fixedsize);␊
879␉␉␉␉close(sfd);␊
880 if (count != fixedsize) return -1;␊
881␊
882␉␉␉␉// build xml dictionary␊
883␉␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
884 safe_set_env(envSysConfigValid,true);␊
885␉␉␉␉ret=0;␊
886␉␉␉␉␊
887␉␉␉}␊
888␉␉}␊
889␉␉␊
890␉}␊
891␉␊
892␉return ret;␊
893}␊
894#endif␊
895␊
896static char * AllocInitStringWithLength(const char * oldString, int len)␊
897{␊
898␉char *Buf = NULL;␊
899␉Buf = malloc(len);␊
900␉if (Buf == NULL) return NULL;␊
901␉␊
902␉if (oldString != NULL)␊
903␉␉strlcpy(Buf, oldString,len);␊
904␉␊
905␉return Buf;␊
906}␊
907␊
908static char * AllocInitZeroEndedStringWithLength(const char * oldString, int len)␊
909{␉␊
910␉if (len > 0)␊
911␉{␊
912␉␉return AllocInitStringWithLength( oldString, len + 1);␊
913␉}␊
914␉return NULL;␊
915}␊
916␊
917char * newString(const char * oldString)␊
918{␉␊
919 if ( oldString )␊
920␉{␊
921␉␉int len = strlen(oldString);␊
922␉␉␊
923␉␉if (len > 0) ␊
924␉␉{␊
925␉␉␉return AllocInitZeroEndedStringWithLength(oldString, len);␊
926␉␉}␉␊
927␉}␉␊
928 return NULL;␊
929}␊
930␊
931char * newStringWithLength(const char * oldString, int len)␊
932{␉␊
933␉if (len > 0) ␊
934␉{␊
935␉␉return AllocInitZeroEndedStringWithLength(oldString, len);␊
936␉}␉␉␊
937 return NULL;␊
938}␊
939␊
940char * newEmptyStringWithLength(int len)␊
941{␉␊
942␉if (len > 0) ␊
943␉{␊
944␉␉return AllocInitZeroEndedStringWithLength(NULL, len);␊
945␉}␉␉␊
946 return NULL;␊
947}␊
948␊
949/*␊
950 * Extracts the next argument from the command line, double quotes are allowed here.␊
951 */␊
952char * getNextArg(char ** argPtr, char * val)␊
953{␊
954␉char * ptr = *argPtr;␊
955␉const char * strStart;␊
956␉int len = 0;␊
957␉bool isQuoted = false;␊
958␉␊
959␉*val = '\0';␊
960␉␊
961␉// Scan for the next non-whitespace character.␊
962␉while ( *ptr && (*ptr == ' ' || *ptr == '=') )␊
963␉{␊
964␉␉ptr++;␊
965␉}␊
966␉␊
967␉strStart = ptr;␊
968␉␊
969␉// Skip the leading double quote character.␊
970␉if (*ptr == '\"')␊
971␉{␊
972␉␉isQuoted = true;␊
973␉␉ptr++;␊
974␉␉strStart++;␊
975␉}␊
976␉␊
977␉// Scan for the argument terminator character.␊
978␉// This can be either a NULL character - in case we reach the end of the string,␊
979␉// a double quote in case of quoted argument,␊
980␉// or a whitespace character (' ' or '=') for non-quoted argument.␊
981␉while (*ptr && !( (isQuoted && (*ptr == '\"')) ||␊
982␉␉␉␉␉ (!isQuoted && (*ptr == ' ' || *ptr == '=')) )␊
983␉␉ )␊
984␉{␊
985␉␉ptr++;␊
986␉}␊
987␉␊
988␉len = ptr - strStart;␊
989␉␊
990␉// Skip the closing double quote character and adjust␊
991␉// the starting pointer for the next getNextArg call.␊
992␉if (*ptr && isQuoted && *ptr == '\"')␊
993␉␉ptr++;␊
994␉␊
995␉// Copy the extracted argument to val.␊
996␉strncat(val, strStart, len);␊
997␉␊
998␉// Set command line pointer.␊
999␉*argPtr = ptr;␊
1000␉␊
1001␉return ptr;␊
1002}␊
1003

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