Answer Posted / sathish

In Linux/Unix , we have the header file dirent.h.This .h
file contains the direcory manipulation functions Some of
the functions are opendir,closedir,readdir.

Write a program to maintain student’s record. Record should not be available to any unauthorized user. There are three (3) categories of users. Each user has its own type. It depends upon user’s type that which kind of operations user can perform. Their types and options are mentioned below: 1. Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record) 2. Super Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record, Delete Single Record) 3. Guest (Search Record [by Reg. No or Name], View All Records) When first time program runs, it asks to create accounts. Each user type has only 1 account (which means that there can be maximum 3 accounts). In account creation, following options are required: Login Name: <6-10 alphabets long, should be unique> Password: <6-10 alphabets long, should not display characters when user type> Confirm Password: Account Type: Login Name, Password and Account Type should be stored in a separate file in encrypted form. (Encryption means that actual information should be changed and Decryption means that Encrypted information is changed back to the actual information) If any of the above mentioned requirement(s) does not meet then point out mistake and ask user to specify information again. When Program is launched with already created accounts, it will ask for user name and password to authenticate. On successful authentication, give options according to the user’s type.

1989

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Is it possible to pass an entire structure to functions?

998

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What is the use of #define preprocessor in c?

1081

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What is a global variable in c?

1014

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What is the difference between exit() and _exit() function in c?

1078

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What is pragma in c?

1219

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Explain what is the stack?

1108

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What is atoi and atof in c?

1088

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Is swift based on c?

1109

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What is the general form of #line preprocessor?

1005

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Explain the difference between malloc() and calloc() in c?

1054

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What is ambagious result in C? explain with an example.

2638

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A global variable when referred to in another file is declared as this a) local variable b) external variable c) constant d) pointers

1206

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Can you please explain the difference between exit() and _exit() function?

1035

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What are the 5 data types?

1145

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