FinderClass.m

#import <Foundation/Foundation.h>

@interface Finder : NSObject
+ (NSString*)findFile:(NSString*)name In:(NSString*)dirname;
@end

@implementation Finder
+ (NSString*)findFile:(NSString*)name In:(NSString*)dirname
{
	NSFileManager *file_manager = [NSFileManager defaultManager];
	NSString *target_path;
	
	NSError *error;
	NSArray *list = [file_manager contentsOfDirectoryAtPath:dirname
																									 error:&error];
	if ( !error ){
		for (NSString *path in list) {
			BOOL is_dir;
			[file_manager fileExistsAtPath:path isDirectory:&is_dir];
			
			if (is_dir) {
				target_path = [self findFile:name In:path];
			}else if ([path rangeOfString:name].location == NSNotFound) {
				target_path = path;
			}
			
			if (target_path) break;
		}
	} else {
		NSLog(@"%@",error.description);
	}
	return target_path;
}

@end