I have a file system path in a NSString, but I need an FSRef for the system call I will be making. What is the best way to create the FSRef?
Try FSPathMakeRef:
NSString *path = @"Some... path... here";
FSRef f;
OSStatus os_status = FSPathMakeRef((const UInt8 *)[path fileSystemRepresentation], &f, NULL);
if (os_status == noErr) {
NSLog(@"Success");
}
You can use FSPathMakeRef()
to make an FSRef
from a UTF-8 C string path, and you can use the -UTF8String
method of NSString
to get a UTF-8 C string:
FSRef fsref;
Boolean isDirectory;
OSStatus result = FSPathMakeRef([myString UTF8String], &fsref, &isDirectory);
if(result < 0)
// handle error
// If successful, fsref is valid, and isDirectory is true if the given path
// is a directory. If you don't care about that, you can instead pass NULL
// for the third argument of FSPathMakeRef()
You can use this method from Nathan Day in his an NSString+NDCarbonUtilities category:
- (BOOL)getFSRef:(FSRef *)aFSRef
{
return FSPathMakeRef( (const UInt8 *)[self fileSystemRepresentation], aFSRef, NULL ) == noErr;
}
See NDAlias at http://homepage.mac.com/nathan_day/pages/source.xml for more (MIT Licensed).
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