Take a look at the CCCryptor man page for details. If you are actually interested in encrypting, as opposed to authenticating data, Common Crypto has functions to perform AES and 3DES (and DES, but don't use it, it's far too weak for modern needs). As you can see from the example below, the API is very similar to OpenSSL's.
#Convert mac address decima mac os
They're in libsystem on iOS and Mac OS X, so no need to add another library or framework to your project. The documentation is in man pages, so you'll need to hunt for it a bit. In fact, you could accept desired format as a parameter (instead of your sep).Use the Common Crypto functions. While you could handle that with naming/documentation, you can change your algorithm to convert MACs from several formats to CISCO one - simply remove separators from strings (multiple str.replace-s will do) and then slice the result as you wish. You assume some format of input data, while it's not spelled-out explicitly. #print final MAC address is just a visual garbage - next line is self-descriptive enough. #Coverts MAC Addresses into cisco format should be a docstring instead. Separator instead of sep may help a little bit to someone who only sees function's signature (as in many IDEs). mac_to_cisco_format is long, mac_to_cisco may be alright.
![convert mac address decima convert mac address decima](http://jeremiahbyerley.com/wp-content/uploads/2019/02/9.png)
![convert mac address decima convert mac address decima](https://img-win.lisisoft.com/img/1/1/1115-1-netmac.jpg)
If someone had successfully guessed that mac_conv converts MAC address, they'd still have to guess the format.
#Convert mac address decima for mac
There may be other formats for MAC addresses. If you wanted to do something else with MAC in that format (like printing it as a part of some string), what would you do? Naming You print the result instead of return-ing it. If this was going into a product, I would probably add some error handling too, to allow for input that isn't a mac address - too short, too long, wrong separators, alternate groupings (a cisco-formatted address is still a valid mac address, but this function won't handle it.)Ĭode seems fine - it works and is easy to comprehend. (zero based, 7DE: E location is 0, D location is 1 and the 7 location is 2) Sum all the multipliers. Multiply every digit with 16 power of digit location. If I was writing this, however, I would probably do it in just a couple of lines, as you know exactly how the input and output strings are going to be formatted: def mac_conv(mac, sep='-'): Here are the steps to convert hex to decimal: Get the decimal equivalent of hex from table. You can actually eliminate that usage of the variable all together: #join groups into a single MAC split the string into chunks of two characters arr arraymap(hexdec, arr) // convert every hex value to its decimal equivalent mac implode(. I would also avoid reusing variables, especially if its a function argument ( mac). #Open file with MAC addresses and convert them Return '.'.join(''.join(group) for group in groups)įirst of all, you should be using return rather than print to get a value out of a function, otherwise you'll have problems when you try to expand the program. This can result in: def mac_conv(mac, sep='-'): 2 source 192 R1 will first send an ARP request thus requesting the MAC address of R2’s IP address (10 Convert the MAC address from the decimal format to the Hexadecimal format: 0. Other than the above function, you don't need to use f.readlines() you can just use f. I'd then join the last three lines into one.Īs return and '.'.join are easy to understand in a single one-liner.
![convert mac address decima convert mac address decima](https://www.omnisecu.com/images/tcpip/mac-address-oui-and-nic-specific.jpg)