Chameleon

Chameleon Svn Source Tree

Root/branches/cparm/i386/libsaio/stringTable.c

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␉if (!buf) {␊
118 return false;␊
119 }␊
120 sprintf(buf, "\"%s\"", key);␊
121 len = strlen(buf);␊
122␉␊
123 while(*tab) {␊
124 if(strncmp(buf, tab, len) == 0) {␊
125 char c;␊
126␉␉␉␊
127 while((c = *(tab + len)) != ';') {␊
128 if(c == 0) {␊
129 len = -1;␊
130 goto out;␊
131 }␊
132 len++;␊
133 }␊
134 len++;␊
135 if(*(tab + len) == '\n') len++;␊
136 goto out;␊
137 }␊
138 tab++;␊
139 }␊
140 len = -1;␊
141out:␊
142 free(buf);␊
143␉␊
144 if(len == -1) return false;␊
145␉␊
146 while((*tab = *(tab + len))) {␊
147 tab++;␊
148 }␊
149␉␊
150 return true;␊
151}␊
152␊
153char *␊
154newStringFromList(␊
155␉␉␉␉ char **list,␊
156␉␉␉␉ int *size␊
157␉␉␉␉ )␊
158{␊
159 char *begin = *list, *end;␊
160 char *newstr;␊
161 int newsize = *size;␊
162 int bufsize;␊
163 ␊
164 while (*begin && newsize && isspace(*begin)) {␊
165␉␉begin++;␊
166␉␉newsize--;␊
167 }␊
168 end = begin;␊
169 while (*end && newsize && !isspace(*end)) {␊
170␉␉end++;␊
171␉␉newsize--;␊
172 }␊
173 if (begin == end)␊
174␉␉return 0;␊
175 bufsize = end - begin + 1;␊
176 newstr = malloc(bufsize);␊
177 if (!newstr) {␊
178 return 0;␊
179 }␊
180 strlcpy(newstr, begin, bufsize);␊
181 *list = end;␊
182 *size = newsize;␊
183 return newstr;␊
184}␊
185␊
186/* ␊
187 * compress == compress escaped characters to one character␊
188 */␊
189int stringLength(const char *table, int compress)␊
190{␊
191␉int ret = 0;␊
192␉␊
193␉while (*table)␊
194␉{␊
195␉␉if (*table == '\\')␊
196␉␉{␊
197␉␉␉table += 2;␊
198␉␉␉ret += 1 + (compress ? 0 : 1);␊
199␉␉}␊
200␉␉else␊
201␉␉{␊
202␉␉␉if (*table == '\"') return ret;␊
203␉␉␉ret++;␊
204␉␉␉table++;␊
205␉␉}␊
206␉}␊
207␉return ret;␊
208}␊
209#endif␊
210␊
211bool getValueForConfigTableKey(config_file_t *config, const char *key, const char **val, int *size)␊
212{␊
213 ASSERT_CONFIG␊
214 ␊
215␉if (config->dictionary != 0 ) {␊
216␉␉// Look up key in XML dictionary␊
217␉␉TagPtr value;␊
218␉␉value = XMLGetProperty(config->dictionary, key);␊
219␉␉if (value != 0) {␊
220␉␉␉if (value->type != kTagTypeString) {␊
221␉␉␉␉error("Non-string tag '%s' found in config file\n",␊
222␉␉␉␉␉ key);␊
223␉␉␉␉return false;␊
224␉␉␉}␊
225␉␉␉*val = value->string;␊
226␉␉␉*size = strlen(value->string);␊
227␉␉␉return true;␊
228␉␉}␊
229␉} else {␊
230␉␉␊
231␉␉// Legacy plist-style table␊
232␉␉␊
233␉}␊
234␉␊
235␉return false;␊
236}␊
237␊
238#if UNUSED␊
239␊
240/*␊
241 * Returns a new malloc'ed string if one is found␊
242 * in the string table matching 'key'. Also translates␊
243 * \n escapes in the string.␊
244 */␊
245char *newStringForStringTableKey(␊
246␉␉␉␉␉␉␉␉ char *table,␊
247␉␉␉␉␉␉␉␉ char *key,␊
248␉␉␉␉␉␉␉␉ config_file_t *config␊
249␉␉␉␉␉␉␉␉ )␊
250{␊
251 const char *val;␊
252 char *newstr, *p;␊
253 int size;␊
254 ␊
255 ASSERT_CONFIG␊
256 ␊
257 if (getValueForConfigTableKey(config, key, &val, &size)) {␊
258␉␉newstr = (char *)malloc(size+1);␊
259 if (!newstr) {␊
260 return 0;␊
261 }␊
262␉␉for (p = newstr; size; size--, p++, val++) {␊
263␉␉␉if ((*p = *val) == '\\') {␊
264␉␉␉␉switch (*++val) {␊
265␉␉␉␉␉case 'r':␊
266␉␉␉␉␉␉*p = '\r';␊
267␉␉␉␉␉␉break;␊
268␉␉␉␉␉case 'n':␊
269␉␉␉␉␉␉*p = '\n';␊
270␉␉␉␉␉␉break;␊
271␉␉␉␉␉case 't':␊
272␉␉␉␉␉␉*p = '\t';␊
273␉␉␉␉␉␉break;␊
274␉␉␉␉␉default:␊
275␉␉␉␉␉␉*p = *val;␊
276␉␉␉␉␉␉break;␊
277␉␉␉␉}␊
278␉␉␉␉size--;␊
279␉␉␉}␊
280␉␉}␊
281␉␉*p = '\0';␊
282␉␉return newstr;␊
283 } else {␊
284␉␉return 0;␊
285 }␊
286}␊
287␊
288#endif␊
289␊
290char *␊
291newStringForKey(char *key, config_file_t *config)␊
292{␊
293 const char *val;␊
294 char *newstr;␊
295 int size;␊
296 ␊
297 ASSERT_CONFIG␊
298 ␊
299 if (getValueForKey(key, &val, &size, config) && size) {␊
300␉␉newstr = (char *)malloc(size + 1);␊
301 if (!newstr) {␊
302 return 0;␊
303 }␊
304␉␉strlcpy(newstr, val, size + 1);␊
305␉␉return newstr;␊
306 } else {␊
307␉␉return 0;␊
308 }␊
309}␊
310␊
311/* parse a command line␊
312 * in the form: [<argument> ...] [<option>=<value> ...]␊
313 * both <option> and <value> must be either composed of␊
314 * non-whitespace characters, or enclosed in quotes.␊
315 */␊
316␊
317static const char *getToken(const char *line, const char **begin, int *len)␊
318{␊
319 if (*line == '\"') {␊
320␉␉*begin = ++line;␊
321␉␉while (*line && *line != '\"')␊
322␉␉␉line++;␊
323␉␉*len = line++ - *begin;␊
324 } else {␊
325␉␉*begin = line;␊
326␉␉while (*line && !isspace(*line) && *line != '=')␊
327␉␉␉line++;␊
328␉␉*len = line - *begin;␊
329 }␊
330 return line;␊
331}␊
332␊
333bool getValueForBootKey(const char *line, const char *match, const char **matchval, int *len)␊
334{␊
335 const char *key, *value;␊
336 int key_len, value_len;␊
337 bool retval = false;␊
338 ␊
339 while (*line) {␊
340␉␉/* look for keyword or argument */␊
341␉␉while (isspace(*line)) line++;␊
342␉␉␊
343␉␉/* now look for '=' or whitespace */␊
344␉␉line = getToken(line, &key, &key_len);␊
345␉␉/* line now points to '=' or space */␊
346␉␉if (*line && !isspace(*line)) {␊
347␉␉␉line = getToken(++line, &value, &value_len);␊
348␉␉} else {␊
349␉␉␉value = line;␊
350␉␉␉value_len = 0;␊
351␉␉}␊
352␉␉if ((strlen(match) == key_len)␊
353␉␉␉&& strncmp(match, key, key_len) == 0) {␊
354␉␉␉*matchval = value;␊
355␉␉␉*len = value_len;␊
356␉␉␉retval = true;␊
357 /* Continue to look for this key; last one wins. */␊
358␉␉}␊
359 }␊
360 return retval;␊
361}␊
362␊
363/* Return NULL if no option has been successfully retrieved, or the string otherwise */␊
364const char * getStringForKey(const char * key, config_file_t *config)␊
365{␊
366␉static const char* value =0;␊
367␉int len=0;␊
368 ␊
369 ASSERT_CONFIG␊
370 ␊
371␉if(!getValueForKey(key, &value, &len, config)) value = 0;␊
372␉return value;␊
373}␊
374␊
375␊
376/* Returns TRUE if a value was found, FALSE otherwise.␊
377 * The boolean value of the key is stored in 'val'.␊
378 */␊
379␊
380bool getBoolForKey( const char *key, bool *result_val, config_file_t *config )␊
381{␊
382 const char *key_val;␊
383 int size;␊
384 ␊
385 ASSERT_CONFIG␊
386 ␊
387 if (getValueForKey(key, &key_val, &size, config)) {␊
388 if ( (size >= 1) && (key_val[0] == 'Y' || key_val[0] == 'y') ) {␊
389 *result_val = true;␊
390 } else {␊
391 *result_val = false;␊
392 }␊
393 return true;␊
394 }␊
395 return false;␊
396}␊
397␊
398bool getIntForKey( const char *key, int *value, config_file_t *config )␊
399{␊
400 const char *val;␊
401 int size, sum;␊
402 bool negative = false;␊
403 ␊
404 ASSERT_CONFIG␊
405 ␊
406 if (getValueForKey(key, &val, &size, config))␊
407␉{␊
408␉␉if ( size )␊
409␉␉{␊
410␉␉␉if (*val == '-')␊
411␉␉␉{␊
412␉␉␉␉negative = true;␊
413␉␉␉␉val++;␊
414␉␉␉␉size--;␊
415␉␉␉}␊
416␉␉␉␊
417␉␉␉for (sum = 0; size > 0; size--)␊
418␉␉␉{␊
419␉␉␉␉if (*val < '0' || *val > '9')␊
420␉␉␉␉␉return false;␊
421␉␉␉␉␊
422␉␉␉␉sum = (sum * 10) + (*val++ - '0');␊
423␉␉␉}␊
424␉␉␉␊
425␉␉␉if (negative)␊
426␉␉␉␉sum = -sum;␊
427␉␉␉␊
428␉␉␉*value = sum;␊
429␉␉␉return true;␊
430␉␉}␊
431␉}␊
432 return false;␊
433}␊
434␊
435config_file_t *resolveConfig(config_file_t *config)␊
436{␊
437␉ASSERT_CONFIG␊
438␉config_file_t *new_config = config;␊
439␉return new_config;␊
440}␊
441#if UNUSED␊
442/*␊
443 *␊
444 */␊
445␊
446bool getDimensionForKey( const char *key, unsigned int *value, config_file_t *config, unsigned int dimension_max, unsigned int object_size )␊
447{␊
448␉const char *val;␊
449␉␊
450 int size = 0;␊
451␉int sum = 0;␊
452 ␊
453␉bool negative = false;␊
454␉bool percentage = false;␊
455 ␊
456 ASSERT_CONFIG␊
457␉␊
458 if (getValueForKey(key, &val, &size, config))␊
459␉{␊
460␉␉if ( size )␊
461␉␉{␊
462␉␉␉if (*val == '-')␊
463␉␉␉{␊
464␉␉␉␉negative = true;␊
465␉␉␉␉val++;␊
466␉␉␉␉size--;␊
467␉␉␉}␊
468␉␉␉␊
469␉␉␉if (val[size-1] == '%')␊
470␉␉␉{␊
471␉␉␉␉percentage = true;␊
472␉␉␉␉size--;␊
473␉␉␉}␊
474␉␉␉␊
475␉␉␉// convert string to integer␊
476␉␉␉for (sum = 0; size > 0; size--)␊
477␉␉␉{␊
478␉␉␉␉if (*val < '0' || *val > '9')␊
479␉␉␉␉␉return false;␊
480␉␉␉␉␊
481␉␉␉␉sum = (sum * 10) + (*val++ - '0');␊
482␉␉␉}␊
483␉␉␉␊
484␉␉␉if (percentage)␊
485␉␉␉␉sum = ( dimension_max * sum ) / 100;␊
486␉␉␉␊
487␉␉␉// calculate offset from opposite origin␊
488␉␉␉if (negative)␊
489␉␉␉␉sum = ( ( dimension_max - object_size ) - sum );␊
490␉␉␉␊
491␉␉} else {␊
492␉␉␉␊
493␉␉␉// null value calculate center␊
494␉␉␉sum = ( dimension_max - object_size ) / 2;␊
495␉␉␉␊
496␉␉}␊
497␉␉␊
498␉␉*value = (uint16_t) sum;␊
499␉␉return true;␊
500␉}␊
501␉␊
502␉// key not found␊
503 return false;␊
504}␊
505␊
506/*␊
507 *␉get color value from plist format #RRGGBB␊
508 */␊
509␊
510bool getColorForKey( const char *key, unsigned int *value, config_file_t *config )␊
511{␊
512 const char *val;␊
513 int size;␊
514 ␊
515 ASSERT_CONFIG␊
516 ␊
517 if (getValueForKey(key, &val, &size, config))␊
518␉{␊
519␉␉if (*val == '#')␊
520␉␉{␊
521 val++;␊
522␉␉␉*value = strtol(val, NULL, 16);␊
523␉␉␉return true;␊
524 }␊
525 }␊
526 return false;␊
527}␊
528#endif␊
529␊
530bool getValueForKey( const char *key, const char **val, int *size, config_file_t *config )␊
531{␊
532 const char *overrideVal;␊
533 int overrideSize;␊
534 bool ret; ␊
535 ␊
536 if (getValueForBootKey(bootArgs->CommandLine, key, val, size))␊
537 return true;␊
538 ␊
539 ASSERT_CONFIG␊
540 ␊
541 ret = getValueForConfigTableKey(config, key, val, size);␊
542 ␊
543 // Try to find alternate keys in bootInfo->overrideConfig␊
544 // and prefer its values with the exceptions for␊
545 // "Kernel"="mach_kernel" and "Kernel Flags"="".␊
546 ␊
547 if (config->canOverride)␊
548 {␊
549 if (getValueForConfigTableKey(&bootInfo->overrideConfig, key, &overrideVal, &overrideSize) && overrideSize)␊
550 {␊
551 *val = overrideVal;␊
552 *size = overrideSize;␊
553 return true;␉␉␊
554 }␊
555 else if (getValueForConfigTableKey(&bootInfo->SystemConfig, key, &overrideVal, &overrideSize) && overrideSize)␊
556 {␊
557 *val = overrideVal;␊
558 *size = overrideSize;␊
559 return true;␉␉␊
560 }␊
561 else if (getValueForConfigTableKey(&bootInfo->bootConfig, key, &overrideVal, &overrideSize) && overrideSize)␊
562 {␊
563 *val = overrideVal;␊
564 *size = overrideSize;␊
565 return true;␉␉␊
566 }␊
567 }␊
568 ␊
569 return ret;␊
570}␊
571␊
572␊
573#if UNUSED␊
574void␊
575printSystemConfig(char *p1)␊
576{␊
577 char *p2 = p1, tmp;␊
578␉␊
579 while (*p1 != '\0') {␊
580␉␉while (*p2 != '\0' && *p2 != '\n') p2++;␊
581␉␉tmp = *p2;␊
582␉␉*p2 = '\0';␊
583␉␉printf("%s\n", p1);␊
584␉␉*p2 = tmp;␊
585␉␉if (tmp == '\0') break;␊
586␉␉p1 = ++p2;␊
587 }␊
588}␊
589#endif␊
590␊
591//==========================================================================␊
592// ParseXMLFile␊
593// Modifies the input buffer.␊
594// Expects to see one dictionary in the XML file.␊
595// Puts the first dictionary it finds in the␊
596// tag pointer and returns 0, or returns -1 if not found␊
597// (and does not modify dict pointer).␊
598// Prints an error message if there is a parsing error.␊
599//␊
600int ParseXMLFile( char * buffer, TagPtr * dict )␊
601{␊
602 long length, pos;␊
603 TagPtr tag;␊
604 pos = 0;␊
605 char *configBuffer;␊
606␉␊
607 configBuffer = malloc(strlen(buffer)+1);␊
608 if (!configBuffer) {␊
609 return -1;␊
610 } ␊
611 ␊
612 strcpy(configBuffer, buffer);␊
613␉␊
614 while (1)␊
615 {␊
616 length = XMLParseNextTag(configBuffer + pos, &tag);␊
617 if (length == -1) break;␊
618␉␉␊
619 pos += length;␊
620␉␉␊
621 if (tag == 0) continue;␊
622 if (tag->type == kTagTypeDict) break;␊
623␉␉␊
624 XMLFreeTag(tag);␊
625 }␊
626 free(configBuffer);␊
627 if (length < 0) {␊
628 error ("Error parsing plist file\n");␊
629 return -1;␊
630 }␊
631 *dict = tag;␊
632 return 0;␊
633}␊
634␊
635/* loadConfigFile␊
636 *␊
637 * Returns 0 - successful.␊
638 *␉␉ -1 - unsuccesful.␊
639 */␊
640int loadConfigFile (const char *configFile, config_file_t *config)␊
641{␊
642␉int fd, count, fixedsize;␊
643 ␊
644 ASSERT_CONFIG␊
645 ␊
646␉if ((fd = open(configFile)) < 0) {␊
647␉␉return -1;␊
648␉}␊
649␉␊
650 fixedsize = MIN(file_size(fd),IO_CONFIG_DATA_SIZE);␊
651 ␊
652␉// read file␊
653␉count = read(fd, config->plist, fixedsize);␊
654␉close(fd);␊
655 if (count != fixedsize) return -1;␊
656␊
657␉// build xml dictionary␉␊
658␉return ParseXMLFile(config->plist, &config->dictionary);␊
659}␊
660␊
661/* loadBooterConfig␊
662 *␊
663 * Returns 0 - successful.␊
664 *␉␉ -1 - unsuccesful.␊
665 */␊
666int loadBooterConfig(void)␊
667{␊
668␉char *dirspec[] = {␉␉␉␉␉␉␉ ␊
669␉␉"rd(0,0)/Extra/com.apple.Boot.plist", ␊
670␉␉"/Extra/com.apple.Boot.plist",␊
671␉␉"bt(0,0)/Extra/com.apple.Boot.plist",␊
672␉␉"rd(0,0)/Extra/org.chameleon.Boot.plist", // Add compatibility with the trunk ␊
673␉␉"/Extra/org.chameleon.Boot.plist", // Add compatibility with the trunk ␊
674␉␉"bt(0,0)/Extra/org.chameleon.Boot.plist" // Add compatibility with the trunk␉␉␊
675 ␊
676␉};␊
677 ␊
678 config_file_t *config = &bootInfo->bootConfig;␊
679 ␊
680␉int i, fd, count, ret=-1, fixedsize;␊
681 ␊
682␉for(i = 0; (unsigned)i< sizeof(dirspec)/sizeof(dirspec[0]); i++)␊
683␉{␊
684␉␉if ((fd = open(dirspec[i])) >= 0)␊
685␉␉{␊
686␉␉␉// read file␊
687 fixedsize = MIN(file_size(fd),IO_CONFIG_DATA_SIZE);␊
688␉␉␉count = read(fd, config->plist, fixedsize);␊
689␉␉␉close(fd);␊
690 if (count != fixedsize) continue;␊
691␊
692␉␉␉// build xml dictionary␊
693␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
694 safe_set_env(envSysConfigValid,true);␊
695␉␉␉ret=0;␊
696␉␉␉␊
697␉␉␉// enable canOverride flag␊
698␉␉␉config->canOverride = true;␊
699 ␊
700␉␉␉break;␊
701␉␉}␊
702␉}␊
703#ifdef BOOT_HELPER_SUPPORT␊
704␉if(ret == -1)␊
705␉{␊
706␉␉ret = loadHelperConfig();␊
707␉}␊
708#endif␊
709␉␊
710␉return ret;␊
711}␊
712␊
713/* loadOverrideConfig␊
714 *␊
715 * Returns 0 - successful.␊
716 *␉␉ -1 - unsuccesful.␊
717 */␊
718int loadOverrideConfig(void)␊
719{␊
720␉char *dirspec[] = {␊
721␉␉"/Extra/com.apple.Boot.plist", ␊
722␉␉"/Extra/org.chameleon.Boot.plist" ␊
723␉};␊
724 ␊
725 config_file_t *config = &bootInfo->overrideConfig;␊
726␊
727 ␊
728␉int i, fd, count, ret=-1, fixedsize;␊
729 ␊
730␉for(i = 0; (unsigned)i< sizeof(dirspec)/sizeof(dirspec[0]); i++)␊
731␉{␊
732␉␉if ((fd = open(dirspec[i])) >= 0)␊
733␉␉{␊
734␉␉␉// read file␊
735␉␉␉fixedsize = MIN(file_size(fd),IO_CONFIG_DATA_SIZE); ␊
736␉␉␉count = read(fd, config->plist, fixedsize);␊
737␉␉␉close(fd);␊
738 if (count != fixedsize) continue;␊
739␉␉␉␊
740␉␉␉// build xml dictionary␊
741␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
742 safe_set_env(envSysConfigValid,true);␊
743␉␉␉ret=0;␊
744␉␉␉break;␊
745␉␉}␊
746␉}␊
747#ifdef BOOT_HELPER_SUPPORT␉␊
748␉if(ret == -1)␊
749␉{␊
750␉␉ret = loadHelperConfig();␊
751␉}␊
752#endif␊
753 ␊
754␉return ret;␊
755}␊
756␊
757/* loadSystemConfig␊
758 *␊
759 * Returns 0 - successful.␊
760 *␉␉ -1 - unsuccesful.␊
761 */␊
762int loadSystemConfig(void)␊
763{␊
764␉char *dirspec[] = {␊
765 "rd(0,0)/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
766␉␉"/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
767␉␉"bt(0,0)/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
768 "rd(0,0)/OS X Install Data/com.apple.Boot.plist",␊
769␉␉"/OS X Install Data/com.apple.Boot.plist",␊
770␉␉"bt(0,0)/OS X Install Data/com.apple.Boot.plist",␊
771 "rd(0,0)/Mac OS X Install Data/com.apple.Boot.plist",␊
772␉␉"/Mac OS X Install Data/com.apple.Boot.plist",␊
773␉␉"bt(0,0)/Mac OS X Install Data/com.apple.Boot.plist"␊
774␉};␊
775 ␊
776 config_file_t *config = &bootInfo->SystemConfig;␊
777␊
778 ␊
779␉int i, fd, count, ret=-1, fixedsize;␊
780␉␊
781␉for(i = 0; (unsigned)i< sizeof(dirspec)/sizeof(dirspec[0]); i++)␊
782␉{␊
783␉␉if ((fd = open(dirspec[i])) >= 0)␊
784␉␉{␊
785␉␉␉// read file␊
786␉␉␉fixedsize = MIN(file_size(fd),IO_CONFIG_DATA_SIZE); ␊
787␉␉␉count = read(fd, config->plist, fixedsize);␊
788␉␉␉close(fd);␊
789 if (count != fixedsize) continue;␊
790␉␉␉␊
791␉␉␉// build xml dictionary␊
792␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
793 safe_set_env(envSysConfigValid,true);␊
794␉␉␉ret=0;␉␉␉␊
795␉␉␉break;␊
796␉␉}␊
797␉}␊
798␉␊
799␉return ret;␊
800}␊
801␊
802#ifdef BOOT_HELPER_SUPPORT␊
803␊
804/* loadHelperConfig␊
805 *␊
806 * Returns 0 - successful.␊
807 *␉␉ -1 - unsuccesful.␊
808 */␊
809int loadHelperConfig(void)␊
810{␊
811␉int rfd, pfd, sfd, count, ret=-1, fixedsize;␊
812␉␊
813␉char *dirspec[] = {␊
814␉␉"/com.apple.boot.P/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
815␉␉"/com.apple.boot.R/Library/Preferences/SystemConfiguration/com.apple.Boot.plist",␊
816␉␉"/com.apple.boot.S/Library/Preferences/SystemConfiguration/com.apple.Boot.plist"␊
817␉};␊
818␉␊
819 config_file_t *config = &bootInfo->helperConfig;␊
820 ␊
821 ␊
822␉// This is a simple rock - paper scissors algo. R beats S, P beats R, S beats P␊
823␉// If all three, S is used for now. This should be change dto something else (say, timestamp?)␊
824␉␊
825␉pfd = open(dirspec[0]);␊
826␉if(pfd >= 0)␉// com.apple.boot.P exists␊
827␉{␊
828␉␉sfd = open(dirspec[2]); // com.apple.boot.S takes precidence if it also exists␊
829␉␉if(sfd >= 0)␊
830␉␉{␊
831␉␉␉// Use sfd␊
832 fixedsize = MIN(file_size(sfd),IO_CONFIG_DATA_SIZE);␊
833␉␉␉count = read(sfd, config->plist, fixedsize);␊
834␉␉␉close(sfd);␊
835␉␉␉close(pfd); ␊
836 if (count != fixedsize) return -1;␊
837 ␊
838␉␉␉// build xml dictionary␊
839␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
840 safe_set_env(envSysConfigValid,true);␊
841␉␉␉ret=0;␊
842␉␉␉␊
843␉␉}␊
844␉␉else␊
845␉␉{␊
846␉␉␉// used pfd␊
847 fixedsize = MIN(file_size(pfd),IO_CONFIG_DATA_SIZE);␊
848␉␉␉count = read(pfd, config->plist, fixedsize);␊
849␉␉␉close(pfd);␊
850 if (count != fixedsize) return -1;␊
851␊
852␉␉␉// build xml dictionary␊
853␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
854 safe_set_env(envSysConfigValid,true);␊
855␉␉␉ret=0;␊
856␉␉}␊
857␉␉␊
858␉}␊
859␉else␊
860␉{␊
861␉␉rfd = open(dirspec[1]); // com.apple.boot.R exists␊
862␉␉if(rfd >= 0)␊
863␉␉{␊
864␉␉␉pfd = open(dirspec[2]); // com.apple.boot.P takes recidence if it exists␊
865␉␉␉if(pfd >= 0)␊
866␉␉␉{␊
867␉␉␉␉// use sfd␊
868 fixedsize = MIN(file_size(pfd),IO_CONFIG_DATA_SIZE);␊
869␉␉␉␉count = read(pfd, config->plist, fixedsize);␊
870␉␉␉␉close(pfd);␊
871␉␉␉␉close(rfd);␊
872 if (count != fixedsize) return -1;␊
873␊
874␉␉␉␉// build xml dictionary␊
875␉␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
876 safe_set_env(envSysConfigValid,true);␊
877␉␉␉␉ret=0;␊
878␉␉␉␉␊
879␉␉␉}␊
880␉␉␉else␊
881␉␉␉{␊
882␉␉␉␉// use rfd␊
883 fixedsize = MIN(file_size(rfd),IO_CONFIG_DATA_SIZE);␊
884␉␉␉␉count = read(rfd, config->plist, fixedsize);␊
885␉␉␉␉close(rfd);␊
886 if (count != fixedsize) return -1;␊
887␊
888␉␉␉␉// build xml dictionary␊
889␉␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
890 safe_set_env(envSysConfigValid,true);␊
891␉␉␉␉ret=0;␊
892␉␉␉␉␊
893␉␉␉}␊
894␉␉␉␊
895␉␉}␊
896␉␉else␊
897␉␉{␊
898␉␉␉sfd = open(dirspec[2]); // com.apple.boot.S exists, but nothing else does␊
899␉␉␉if(sfd >= 0)␊
900␉␉␉{␊
901␉␉␉␉// use sfd␊
902 fixedsize = MIN(file_size(sfd),IO_CONFIG_DATA_SIZE);␊
903␉␉␉␉count = read(sfd, config->plist, fixedsize);␊
904␉␉␉␉close(sfd);␊
905 if (count != fixedsize) return -1;␊
906␊
907␉␉␉␉// build xml dictionary␊
908␉␉␉␉ParseXMLFile(config->plist, &config->dictionary);␊
909 safe_set_env(envSysConfigValid,true);␊
910␉␉␉␉ret=0;␊
911␉␉␉␉␊
912␉␉␉}␊
913␉␉}␊
914␉␉␊
915␉}␊
916␉␊
917␉return ret;␊
918}␊
919#endif␊
920␊
921static char * AllocInitStringWithLength(const char * oldString, int len)␊
922{␊
923␉char *Buf = NULL;␊
924␉Buf = malloc(len);␊
925␉if (Buf == NULL) return NULL;␊
926␉␊
927␉if (oldString != NULL)␊
928␉␉strlcpy(Buf, oldString,len);␊
929␉␊
930␉return Buf;␊
931}␊
932␊
933static char * AllocInitZeroEndedStringWithLength(const char * oldString, int len)␊
934{␉␊
935␉if (len > 0)␊
936␉{␊
937␉␉return AllocInitStringWithLength( oldString, len + 1);␊
938␉}␊
939␉return NULL;␊
940}␊
941␊
942char * newString(const char * oldString)␊
943{␉␊
944 if ( oldString )␊
945␉{␊
946␉␉int len = strlen(oldString);␊
947␉␉␊
948␉␉if (len > 0) ␊
949␉␉{␊
950␉␉␉return AllocInitZeroEndedStringWithLength(oldString, len);␊
951␉␉}␉␊
952␉}␉␊
953 return NULL;␊
954}␊
955␊
956char * newStringWithLength(const char * oldString, int len)␊
957{␉␊
958␉if (len > 0) ␊
959␉{␊
960␉␉return AllocInitZeroEndedStringWithLength(oldString, len);␊
961␉}␉␉␊
962 return NULL;␊
963}␊
964␊
965char * newEmptyStringWithLength(int len)␊
966{␉␊
967␉if (len > 0) ␊
968␉{␊
969␉␉return AllocInitZeroEndedStringWithLength(NULL, len);␊
970␉}␉␉␊
971 return NULL;␊
972}␊
973␊
974/*␊
975 * Extracts the next argument from the command line, double quotes are allowed here.␊
976 */␊
977char * getNextArg(char ** argPtr, char * val)␊
978{␊
979␉char * ptr = *argPtr;␊
980␉const char * strStart;␊
981␉int len = 0;␊
982␉bool isQuoted = false;␊
983␉␊
984␉*val = '\0';␊
985␉␊
986␉// Scan for the next non-whitespace character.␊
987␉while ( *ptr && (*ptr == ' ' || *ptr == '=') )␊
988␉{␊
989␉␉ptr++;␊
990␉}␊
991␉␊
992␉strStart = ptr;␊
993␉␊
994␉// Skip the leading double quote character.␊
995␉if (*ptr == '\"')␊
996␉{␊
997␉␉isQuoted = true;␊
998␉␉ptr++;␊
999␉␉strStart++;␊
1000␉}␊
1001␉␊
1002␉// Scan for the argument terminator character.␊
1003␉// This can be either a NULL character - in case we reach the end of the string,␊
1004␉// a double quote in case of quoted argument,␊
1005␉// or a whitespace character (' ' or '=') for non-quoted argument.␊
1006␉while (*ptr && !( (isQuoted && (*ptr == '\"')) ||␊
1007␉␉␉␉␉ (!isQuoted && (*ptr == ' ' || *ptr == '=')) )␊
1008␉␉ )␊
1009␉{␊
1010␉␉ptr++;␊
1011␉}␊
1012␉␊
1013␉len = ptr - strStart;␊
1014␉␊
1015␉// Skip the closing double quote character and adjust␊
1016␉// the starting pointer for the next getNextArg call.␊
1017␉if (*ptr && isQuoted && *ptr == '\"')␊
1018␉␉ptr++;␊
1019␉␊
1020␉// Copy the extracted argument to val.␊
1021␉strncat(val, strStart, len);␊
1022␉␊
1023␉// Set command line pointer.␊
1024␉*argPtr = ptr;␊
1025␉␊
1026␉return ptr;␊
1027}␊
1028

Archive Download this file

Revision: 1984