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iOS and OS X Network Programming Cookbook

By : Jon Hoffman
Book Image

iOS and OS X Network Programming Cookbook

By: Jon Hoffman

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iOS and OS X Network Programming Cookbook
Jon Hoffman
Jan, 2014 | 300 pages
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Table of Contents (15 chapters)
iOS and OS X Network Programming Cookbook
iOS and OS X Network Programming Cookbook
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
BSD Socket Library
BSD Socket Library
Introduction
Finding the byte order of your device
Retrieving network address information
Performing a network address resolution
Creating an echo server
Creating an echo client
Creating a data server
Creating a data client
2
Apple Low-level Networking
Apple Low-level Networking
Introduction
Retrieving network address information
Performing a network address resolution
Creating an echo server
Creating an echo client
Creating a server to receive data
Creating a client to send data
Checking the network status
3
Using Libnet
Using Libnet
Introduction
Installing libnet
Adding libnet to your project
Resolving names to addresses with libnet
Retrieving local addresses with libnet
Constructing a Ping packet with libnet
Constructing a UDP packet with libnet
Constructing a TCP packet with libnet
4
Using Libpcap
Using Libpcap
Introduction
Adding libpcap to your project
Retrieving network device information
Capturing packets
Decoding Ethernet headers
Decoding IP headers
Decoding ARP headers
Decoding TCP headers
Decoding UDP headers
Decoding ICMP headers
Filtering packets
Saving a capture file
Creating a simple port scanner using libnet and libpcap together
5
Apple High-level Networking
Apple High-level Networking
Introduction
Performing HTTP(S) synchronous GET requests
Performing HTTP(S) synchronous POST requests
Performing HTTP(S) asynchronous GET requests
Performing HTTP(S) asynchronous POST requests
Parsing an RSS feed with NSXMLParser, NSURL, and NSData
Creating a peer-to-peer bluetooth network
6
Bonjour
Bonjour
Introduction
Publishing a Bonjour service
Discovering a Bonjour service
Resolving a Bonjour service
Creating an echo server that uses Bonjour to advertise the service
Creating an echo client that uses Bonjour to discover the service
7
AFNetworking 2.0 Library
AFNetworking 2.0 Library
Introduction
Checking the network connection type and changes
Creating a web client using AFHTTPSessionManager
Creating a custom response serializer
Using the UIImageView+AFNetworking category
Downloading files with a progress bar
8
MKNetworkKit
MKNetworkKit
Introduction
Creating and using the MKNetworkKit engine
Uploading a file using MKNetworkKit
Downloading a file using MKNetworkKit
Using the UIImageView+MKNetworkKitAdditions.h category and caching the images
Adding a progress bar to upload or download
Index
Index

Introduction

Libnet is a library that allows developers to construct and inject individual network packets. The libnet API hides most of the packet creation low-level details from the developer and allows the developer to quickly create and inject simple packets. Not only can libnet be used to create very powerful network security and monitoring tools, but it can also be used for malicious activities.

Note

While it is possible to compile libnet for the iPhone, if your app constructs custom packets and injects them into the network, Apple will probably reject your app. The code in this chapter is written and tested for OS X; it may or may not work on iOS.

When computers on an IP network wish to communicate, they exchange packets. These packets contain two types of information that are as follows:

  • Control information (header): The header provides information that the network needs to route the packet to the correct destination. This includes source and destination addresses, checksums, control...

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