LoadingDefaultCredential.m

#import <Cocoa/Cocoa.h>

int main() {
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

    NSURLProtectionSpace *space = [[NSURLProtectionSpace alloc]
                                   initWithHost:@"www.tumblr.com"
                                   port:0
                                   protocol:@"http"
                                   realm:nil
                                   authenticationMethod:NSURLAuthenticationMethodDefault];
    NSURLCredential *credential = [[NSURLCredentialStorage sharedCredentialStorage] defaultCredentialForProtectionSpace:space];
    NSLog(@"%@", credential);
    
    [pool drain];
    
    return EXIT_SUCCESS;
}