DHCP LPR detection

gistfile1.m

#import <Foundation/Foundation.h>
#import <SystemConfiguration/SCDynamicStoreCopyDHCPInfo.h>

int main(int argc, const char * argv[]) {
    @autoreleasepool {

        CFDictionaryRef info = SCDynamicStoreCopyDHCPInfo(NULL, NULL);
        
        if (info != NULL) {
        // code RFC 2132 - http://www.ietf.org/rfc/rfc2132.txt
        // 1 - netmask
        // 2 - time offset
        // 3 - router
        // 4 - time server
        // 5 - nameserver
        // 6 - DNS
        // 7 - Log server
        // 8 - Cookie server
        // 9 - LPR server
        // 15 - domain name
        
        CFDataRef data = DHCPInfoGetOptionData(info, 9);
        NSData *my_nsdata = (__bridge NSData*)data;
        
        NSLog(@"Hello, World!");
        NSLog(@"%@\n", my_nsdata);
        } else {
            NSLog(@"No DHCP information\n");
        }
    }
    return 0;
}