570 lines
11 KiB
C
570 lines
11 KiB
C
/*
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* Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_LICENSE_HEADER_START@
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*
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* Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
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* Reserved. This file contains Original Code and/or Modifications of
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* Original Code as defined in and that are subject to the Apple Public
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* Source License Version 1.1 (the "License"). You may not use this file
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* except in compliance with the License. Please obtain a copy of the
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* License at http://www.apple.com/publicsource and read it before using
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* this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE OR NON- INFRINGEMENT. Please see the
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* License for the specific language governing rights and limitations
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* under the License.
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*
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* @APPLE_LICENSE_HEADER_END@
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*/
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/*
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* Copyright 1993 NeXT, Inc.
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* All rights reserved.
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*/
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//#import "libsaio.h"
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//#import "bootstruct.h"
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//#import <driverkit/configTablePrivate.h>
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extern char *Language;
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extern char *LoadableFamilies;
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static void eatThru(char val, char **table_p);
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static __inline INTN isspace(char c)
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{
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return (c == ' ' || c == '\t');
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}
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/*
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* Compare a string to a key with quoted characters
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*/
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static __inline int
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keyncmp(char *str, char *key, INTN n)
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{
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INTN c;
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while (n--) {
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c = *key++;
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if (c == '\\') {
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switch(c = *key++) {
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case 'n':
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c = '\n';
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break;
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case 'r':
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c = '\r';
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break;
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case 't':
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c = '\t';
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break;
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default:
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break;
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}
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} else if (c == '\"') {
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/* Premature end of key */
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return 1;
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}
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if (c != *str++) {
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return 1;
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}
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}
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return 0;
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}
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static void eatThru(char val, char **table_p)
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{
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register char *table = *table_p;
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register BOOL found = NO;
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while (*table && !found)
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{
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if (*table == '\\') table += 2;
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else
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{
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if (*table == val) found = YES;
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table++;
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}
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}
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*table_p = table;
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}
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char *
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newStringFromList(
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char **list,
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INTN* size
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)
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{
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char *begin = *list, *end;
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char *newstr;
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INTN newsize = *size;
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while (*begin && newsize && isspace(*begin)) {
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begin++;
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newsize--;
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}
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end = begin;
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while (*end && newsize && !isspace(*end)) {
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end++;
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newsize--;
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}
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if (begin == end)
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return 0;
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newstr = malloc(end - begin + 1);
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strncpy(newstr, begin, end - begin);
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*list = end;
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*size = newsize;
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return newstr;
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}
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/*
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* compress == compress escaped characters to one character
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*/
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int stringLength(char *table, INTN compress)
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{
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int ret = 0;
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while (*table)
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{
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if (*table == '\\')
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{
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table += 2;
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ret += 1 + (compress ? 0 : 1);
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}
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else
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{
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if (*table == '\"') return ret;
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ret++;
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table++;
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}
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}
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return ret;
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}
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// looks in table for strings of format << "key" = "value"; >>
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// or << "key"; >>
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BOOL getValueForStringTableKey(char *table, char *key, char **val, INTN *size)
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{
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INTN keyLength;
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char *tableKey;
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do
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{
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eatThru('\"',&table);
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tableKey = table;
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keyLength = strlen(key);
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if (keyLength &&
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(stringLength(table,1) == keyLength) &&
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(keyncmp(key, table, keyLength) == 0))
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{
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INTN c;
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/* found the key; now look for either
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* '=' or ';'
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*/
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while (c = *table) {
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++table;
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if (c == '\\') {
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++table;
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continue;
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} else if (c == '=' || c == ';') {
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break;
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}
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}
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if (c == ';') {
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table = tableKey;
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} else {
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eatThru('\"',&table);
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}
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*val = table;
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*size = stringLength(table,0);
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return YES;
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}
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eatThru(';',&table);
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} while (*table);
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return NO;
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}
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/*
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* Returns a new malloc'ed string if one is found
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* in the string table matching 'key'. Also translates
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* \n escapes in the string.
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*/
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char *newStringForStringTableKey(
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char *table,
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char *key
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)
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{
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char *val, *newstr, *p;
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INTN size;
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if (getValueForStringTableKey(table, key, &val, &size)) {
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newstr = malloc(size+1);
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for (p = newstr; size; size--, p++, val++) {
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if ((*p = *val) == '\\') {
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switch (*++val) {
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case 'r':
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*p = '\r';
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break;
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case 'n':
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*p = '\n';
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break;
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case 't':
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*p = '\t';
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break;
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default:
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*p = *val;
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break;
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}
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size--;
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}
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}
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*p = '\0';
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return newstr;
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} else {
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return 0;
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}
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}
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char *
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newStringForKey(char *key)
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{
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char *val, *newstr;
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INTN size;
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if (getValueForKey(key, &val, &size) && size) {
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newstr = malloc(size + 1);
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strncpy(newstr, val, size);
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return newstr;
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} else {
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return 0;
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}
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}
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/* parse a command line
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* in the form: [<argument> ...] [<option>=<value> ...]
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* both <option> and <value> must be either composed of
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* non-whitespace characters, or enclosed in quotes.
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*/
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static char *getToken(char *line, char **begin, INTN *len)
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{
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if (*line == '\"') {
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*begin = ++line;
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while (*line && *line != '\"')
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line++;
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*len = line++ - *begin;
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} else {
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*begin = line;
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while (*line && !isspace(*line) && *line != '=')
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line++;
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*len = line - *begin;
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}
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return line;
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}
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BOOL getValueForBootKey(char *line, char *match, char **matchval, INTN *len)
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{
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char *key, *value;
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INTN key_len, value_len;
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while (*line) {
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/* look for keyword or argument */
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while (isspace(*line)) line++;
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/* now look for '=' or whitespace */
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line = getToken(line, &key, &key_len);
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/* line now points to '=' or space */
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if (!isspace(*line++)) {
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line = getToken(line, &value, &value_len);
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if ((strlen(match) == key_len)
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&& strncmp(match, key, key_len) == 0) {
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*matchval = value;
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*len = value_len;
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return YES;
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}
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}
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}
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return NO;
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}
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BOOL getBoolForKey(
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char *key
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)
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{
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char *val;
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INTN, size;
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if (getValueForKey(key, &val, &size) && (size >= 1) &&
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val[0] == 'Y' || val[0] == 'y')
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return YES;
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return NO;
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}
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BOOL getValueForKey(
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char *key,
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char **val,
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INTN *size
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)
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{
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if (getValueForBootKey(bootArgs->bootString, key, val, size))
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return YES;
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else if (getValueForStringTableKey(bootArgs->config, key, val, size))
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return YES;
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return NO;
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}
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#define LOCALIZABLE \
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"/usr/Devices/%s.config/%s.lproj/Localizable.strings"
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char *
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loadLocalizableStrings(
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char *name
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)
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{
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char buf[256], *config;
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register INTN count, fd;
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sprintf(buf, LOCALIZABLE, name, Language);
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if ((fd = open(buf,0)) < 0) {
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sprintf(buf, LOCALIZABLE, name, "English");
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if ((fd = open(buf,0)) < 0)
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return 0;
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}
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count = file_size(fd);
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config = malloc(count);
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count = read(fd, config, count);
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close(fd);
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if (count <= 0) {
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free(config);
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return 0;
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}
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return config;
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}
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char *
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bundleLongName(
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char *bundleName
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)
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{
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char *table, *name, *val;
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INTN, size;
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if ((table = loadLocalizableStrings(bundleName)) != 0 &&
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getValueForStringTableKey(table,"Long Name", &val, &size) == YES) {
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name = malloc(size+1);
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strncpy(name, val, size);
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free(table);
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} else {
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name = newString(bundleName);
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}
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return name;
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}
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int sysConfigValid;
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/*
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* Returns 0 if file loaded OK,
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* -1 if file was not loaded
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* Does not print error messages.
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* Returns pointer to table in memory in *table.
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*/
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int
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loadConfigFile( char *configFile, char **table, INTN allocTable)
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{
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char *configPtr = bootArgs->configEnd;
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INTN fd, count;
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/* Read config file into memory */
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if ((fd = open(configFile, 0)) >= 0)
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{
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if (allocTable) {
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configPtr = malloc(file_size(fd)+2);
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} else {
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if ((configPtr - bootArgs->config) > CONFIG_SIZE) {
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error("No room in memory for config file %s\n",configFile);
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close(fd);
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return -1;
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}
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localPrintf("Reading config: %s\n",configFile);
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}
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if (table) *table = configPtr;
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count = read(fd, configPtr, IO_CONFIG_DATA_SIZE);
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close(fd);
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configPtr += count;
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*configPtr++ = 0;
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*configPtr = 0;
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if (!allocTable)
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bootArgs->configEnd = configPtr;
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return 0;
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} else {
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return -1;
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}
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}
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/* Returns 0 if requested config files were loaded,
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* 1 if default files were loaded,
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* -1 if no files were loaded.
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* Prints error message if files cannot be loaded.
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*/
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int
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loadConfigDir(
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char *bundleName, // bundle directory name (e.g. "System.config")
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INTN useDefault, // use Default.table instead of instance tables
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char **table, // returns pointer to config table
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INTN allocTable // malloc the table and return in *table
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)
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{
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char *buf;
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INTN i, ret;
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buf = malloc(256);
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ret = 0;
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// load up to 99 instance tables
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for (i=0; i < 99; i++) {
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sprintf(buf, "%s%s.config/Instance%d.table", IO_CONFIG_DIR,
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bundleName, i);
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if (useDefault || (loadConfigFile(buf, table, allocTable) != 0)) {
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if (i == 0) {
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// couldn't load first instance table;
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// try the default table
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sprintf(buf, "%s%s.config/%s", IO_CONFIG_DIR, bundleName,
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IO_DEFAULT_TABLE_FILENAME);
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if (loadConfigFile(buf, table, allocTable) == 0) {
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ret = 1;
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} else {
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if (!allocTable)
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error("Config file \"%s\" not found\n", buf);
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ret = -1;
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}
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}
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// we must be done.
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break;
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}
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}
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free(buf);
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return ret;
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}
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#define SYSTEM_DEFAULT_FILE \
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IO_SYSTEM_CONFIG_DIR IO_DEFAULT_TABLE_FILENAME
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#define SYSTEM_CONFIG "System"
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#define LP '('
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#define RP ')'
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/* Returns 0 if requested config files were loaded,
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* 1 if default files were loaded,
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* -1 if no files were loaded.
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* Prints error message if files cannot be loaded.
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*/
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int
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loadSystemConfig(
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char *which,
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INTN size
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)
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{
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char *buf, *bp, *cp;
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INTN ret, len, doDefault=0;
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buf = bp = malloc(256);
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if (which && size)
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{
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for(cp = which, len = size; len && *cp && *cp != LP; cp++, len--) ;
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if (*cp == LP) {
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while (len-- && *cp && *cp++ != RP) ;
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/* cp now points past device */
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strncpy(buf,which,cp - which);
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bp += cp - which;
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} else {
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cp = which;
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len = size;
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}
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if (*cp != '/') {
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strcpy(bp, IO_SYSTEM_CONFIG_DIR);
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strncat(bp, cp, len);
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if (strncmp(cp + len - strlen(IO_TABLE_EXTENSION),
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IO_TABLE_EXTENSION, strlen(IO_TABLE_EXTENSION)) != 0)
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strcat(bp, IO_TABLE_EXTENSION);
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} else {
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strncpy(bp, cp, len);
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bp[size] = '\0';
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}
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if (strcmp(bp, SYSTEM_DEFAULT_FILE) == 0)
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doDefault = 1;
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ret = loadConfigFile(bp = buf, 0, 0);
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} else {
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ret = loadConfigDir((bp = SYSTEM_CONFIG), 0, 0, 0);
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}
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if (ret < 0) {
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error("System config file '%s' not found\n", bp);
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} else
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sysConfigValid = 1;
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free(buf);
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return (ret < 0 ? ret : doDefault);
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}
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int
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loadOtherConfigs(
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INTN useDefault
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)
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{
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char *val, *table;
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INTN count;
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char *string;
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INTN fd, ret;
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if (getValueForKey( "Boot Drivers", &val, &count))
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{
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while (string = newStringFromList(&val, &count)) {
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ret = loadConfigDir(string, useDefault, &table, 0);
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if (ret >= 0) {
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if ((fd = openDriverReloc(string)) >= 0) {
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localPrintf("Loading binary for %s\n",string);
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if (loadDriver(string, fd) < 0)
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error("Error loading driver %s\n",string);
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close(fd);
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}
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driverWasLoaded(string, table);
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free(string);
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} else {
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driverIsMissing(string);
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}
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if (ret == 1)
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useDefault = 1; // use defaults from now on
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}
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} else {
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error("Warning: No active drivers specified in system config\n");
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}
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bootArgs->first_addr0 =
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(int)bootArgs->configEnd + 1024;
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return 0;
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}
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