static OSStatus WorkaroundNetworkPrefsBug(CFDictionaryRef *entitiesDictPtr)
// If this is an Ethernet interface and LCPEchoEnabled is false,
// set it to true. This works around what I think is a bug in
// the Network preferences panel <rdar://problem/3182846> where the
// LCPEchoEnabled flag is mysteriously set to false for PCI Ethernet
// interfaces.
{
OSStatus err;
CFStringRef hardwarePath[2];
CFStringRef lcpPath[2];
CFStringRef hardwareStr;
CFNumberRef lcpValue;
long enabled;
hardwarePath[0] = kSCEntNetInterface;
hardwarePath[1] = kSCPropNetInterfaceHardware;
lcpPath[0] = kSCEntNetPPP;
lcpPath[1] = kSCPropNetPPPLCPEchoEnabled;
hardwareStr = NULL; // just to make debugging easier
lcpValue = NULL;
err = noErr;
if ( CFQDictionaryGetValueAtPath(*entitiesDictPtr, (const void **) hardwarePath, 2, (const void **) &hardwareStr) == noErr
&& CFEqual(hardwareStr, kSCEntNetEthernet)
&& CFQDictionaryGetValueAtPath(*entitiesDictPtr, (const void **) lcpPath, 2, (const void **) &lcpValue) == noErr
&& CFNumberGetValue(lcpValue, kCFNumberLongType, &enabled)
&& (enabled == 0) ) {
CFMutableDictionaryRef newDict;
CFNumberRef numRef;
if ( ! gRunQuiet ) {
fprintf(stderr, "Applied workaround\n");
}
numRef = NULL;
newDict = CFDictionaryCreateMutableCopy(NULL, 0, *entitiesDictPtr);
err = CFQError(newDict);
if (err == noErr) {
enabled = true;
numRef = CFNumberCreate(NULL, kCFNumberLongType, &enabled);
err = CFQError(numRef);
}
if (err == noErr) {
err = CFQDictionarySetValueAtPath(newDict, (const void **) lcpPath, 2, numRef);
}
if (err == noErr) {
CFQRelease(*entitiesDictPtr);
*entitiesDictPtr = newDict;
newDict = NULL;
}
CFQRelease(newDict);
CFQRelease(numRef);
}
return err;
}
extern pascal OSStatus CFQBundleCreateFromFrameworkName(CFStringRef frameworkName,
CFBundleRef *bundlePtr)
// See comment in header.
{
OSStatus err;
FSRef frameworksFolderRef;
CFURLRef baseURL;
CFURLRef bundleURL;
assert(frameworkName != NULL);
assert( bundlePtr != NULL);
assert(*bundlePtr == NULL);
*bundlePtr = NULL;
baseURL = NULL;
bundleURL = NULL;
// Find the frameworks folder and create a URL for it.
err = FSFindFolder(kOnAppropriateDisk, kFrameworksFolderType, true, &frameworksFolderRef);
if (err == noErr) {
baseURL = CFURLCreateFromFSRef(kCFAllocatorSystemDefault, &frameworksFolderRef);
err = CFQError(baseURL);
}
// Append the name of the framework to the URL.
if (err == noErr) {
bundleURL = CFURLCreateCopyAppendingPathComponent(kCFAllocatorSystemDefault, baseURL, frameworkName, false);
err = CFQError(bundleURL);
}
// Create a bundle based on that URL and load the bundle into memory.
if (err == noErr) {
*bundlePtr = CFBundleCreate(kCFAllocatorSystemDefault, bundleURL);
err = CFQError(*bundlePtr);
}
if (err == noErr) {
err = CFQErrorBoolean( CFBundleLoadExecutable( *bundlePtr ) );
}
// Clean up.
if (err != noErr) {
CFQRelease(*bundlePtr);
*bundlePtr = NULL;
}
CFQRelease(bundleURL);
CFQRelease(baseURL);
assert( (err == noErr) == (*bundlePtr != NULL) );
return err;
}
extern pascal OSStatus MoreAToSCopySymbolNamesUsingDyld(ItemCount count,
MoreAToSAddr addresses[],
MoreAToSSymInfo symbols[])
{
OSStatus err;
ItemCount index;
assert(addresses != NULL);
assert(symbols != NULL);
err = noErr;
for (index = 0; index < count; index++) {
const char * thisSymbol;
const char * cleanSymbol;
unsigned int thisSymbolOffset;
Boolean thisSymbolPublic;
CFStringRef thisSymbolStr;
MoreAToSSymbolType thisSymbolType;
thisSymbolStr = NULL;
thisSymbol = NULL;
if (addresses[index] != NULL) { // NULL is never a useful symbol
thisSymbol = GetFunctionName( (unsigned int) addresses[index], &thisSymbolOffset, &thisSymbolPublic);
}
if (thisSymbol != NULL) {
// Mach-O symbols virtually always start with '_'. If there's one there,
// let's strip it.
if (thisSymbol[0] == '_') {
cleanSymbol = &thisSymbol[1];
} else {
cleanSymbol = thisSymbol;
}
thisSymbolStr = CFStringCreateWithCString(NULL, cleanSymbol, kCFStringEncodingASCII);
err = CFQError(thisSymbolStr);
if (thisSymbolPublic) {
thisSymbolType = kMoreAToSDyldPubliSymbol;
} else {
thisSymbolType = kMoreAToSDyldPrivateSymbol;
}
if (err == noErr) {
ReplaceSymbolIfBetter(&symbols[index], thisSymbolType, thisSymbolStr, (UInt32) thisSymbolOffset);
}
}
CFQRelease(thisSymbolStr);
free( (void *) thisSymbol);
if (err != noErr) {
break;
}
}
return err;
}
extern pascal OSStatus CFQPropertyListCreateFromXMLFSRef(const FSRef *xmlFile, CFPropertyListMutabilityOptions options, CFPropertyListRef *result)
// See comment in header.
{
OSStatus err;
CFURLRef xmlURL;
assert(xmlFile != NULL);
assert( result != NULL);
assert(*result == NULL);
xmlURL = CFURLCreateFromFSRef(NULL, xmlFile);
err = CFQError(xmlURL);
if (err == noErr) {
err = CFQPropertyListCreateFromXMLCFURL(xmlURL, options, result);
}
CFQRelease(xmlURL);
assert( (err == noErr) == (*result != NULL) );
return err;
}