Generate C code implementation for random passwords and c code

Generate C code implementation for random passwords and c code

Problem description

Some software often requires the user to enter a random password (or verification code) sent by the system during login to verify the user's identity and prevent malicious login.

A 6-digit random password string must be generated in C language.

 

Rand Functions

The rand function is a real random number generator. It returns a random value ranging from 0 to RAND_MAX (2147483647.

This function is prototype: int rand (void );

When using this function, you must include the header file "stdlib. h ".

 

C code implementation

Makefile content

TestRand: TestRand. c

Gcc-c-g TestRand. c

Gcc-g-o release/TestRandTestRand. o

Rm *. o

 

Random Password generation

After executing the "make" command, go to the "release" directory and run the "TestRand" command. The generated random password is as follows:

289383

930886

692777

636915

747793

238335

885386

760492

516649

641421

202362

490027

368690

520059

897763

513926

180540

383426

089172

455736

 

 

 

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