subject

Environment Variables and system() In this task, we study how environment variables are affected when a new program is executed via the system () function. This function is used to execute a command, but unlike execve(), which di- rectly executes a command, system() actually executes"/bin/sh -c command", i. e., it executes /bin/sh, and asks the shell to execute the command. If you look at the implementation of the system () function, you will see that it uses execito execute /bin/sh; execl() calls execve(). passing to it the environment variables array. Therefore, SEED Labs - Environment Variable and Set-UID Program Lab using system().the environment variables of the calling process is passed to the new program /bin/sh. Please compile and run the following program to verify this. #include include int main() system("/usr/bin/env"); return 0;

ansver
Answers: 3

Another question on Computers and Technology

question
Computers and Technology, 22.06.2019 15:30
Which of the following examples has four beats in each measure?
Answers: 2
question
Computers and Technology, 22.06.2019 20:30
In this lab, you complete a prewritten c program that calculates an employee’s productivity bonus and prints the employee’s name and bonus. bonuses are calculated based on an employee’s productivity score as shown below. a productivity score is calculated by first dividing an employee’s transactions dollar value by the number of transactions and then dividing the result by the number of shifts worked.
Answers: 3
question
Computers and Technology, 23.06.2019 03:30
How can you repin an image on your pinterest pin board a. click on the "repin" button b. click on the "add pin" button c. click on the "upload a pin" button d. click on the "save pin" button.
Answers: 2
question
Computers and Technology, 24.06.2019 12:00
What is a sketch or blueprint of a web page that shows the structure (but not the detailed design) of basic page elements such as the logo, navigation, content, and footer?
Answers: 3
You know the right answer?
Environment Variables and system() In this task, we study how environment variables are affected whe...
Questions
Questions on the website: 13722361