"Information security system design basis" --Myod

Myod

 

Review Makefile

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Task details

1. C review of the file processing
2. Write myod.c achieved under Linux od -tx -tc XXX function with myod XXX
3. main separate from other, making static and dynamic libraries
4. Writing the Makefile
5. Submit the results of the test code and run shots, shots submit debugging process, to full-screen, contains its own student number information
6. Published a blog in blog Park, problems encountered and solutions focus on writing process

                    

Static library

Dynamic library

operation result

The code debugging problems and solutions

• Question 1: Linux in the od command is displayed  \ n  , but began to write C programs can not be displayed

• Question 1 solution: a reference in the ASCII character encoding, what characters can not be displayed or printed out  , we can manually output, encountered "\ n" can use the escape character, namely printf ( "\ n").

• Question 2: Linux under od -tx -tc XXX operating results and the expected difference 

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• Problem 2 Solution:

• This is my  od -tc -tx  and  -tx1 od -tc  realize the function did not quite figure out the cause. In blue ink cloud of mission requirements are  written myod.c achieved under Linux od -tx -tc XXX XXX function with MyoD  , actual access to information to know,  -tc  represents the output ASCII characters,  -tx1  in hexadecimal output, each output of one byte, and if  -tx  , the default for a group of four bytes. So just command instead  od -tc -tx1 zxj  to

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• Cloud link code

 

Reference material

• od command