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Write a program that determines which file descriptors (the numbers) are pre-opened on the CSE machines. What is the first free file descriptor? Your program which should support your answers. Hint: Look at the dup(2) family of system calls, and the open(2) system call. Consider the errors which might possibly occur. Please do not guess at this, your program must determine the values.

Write a program that determines which file descriptors (the numbers) are pre-opened on the CSE machines. What is the first free file descriptor? Your program which should support your answers. Hint: Look at the dup(2) family of system calls, and the open(2) system call. Consider the errors which might possibly occur. Please do not guess at this, your program must determine the values.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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need help with this c program, please help with answer and instructions/explanation (I have a mac and use terminal) 

Write a program that determines which file descriptors (the numbers) are pre-opened on the CSE machines. What is the first free file descriptor? Your program which should support your answers. Hint: Look at the dup(2) family of system calls, and the open(2) system call. Consider the errors which might possibly occur. Please do not guess at this, your program must determine the values.
Transcribed Image Text:Write a program that determines which file descriptors (the numbers) are pre-opened on the CSE machines. What is the first free file descriptor? Your program which should support your answers. Hint: Look at the dup(2) family of system calls, and the open(2) system call. Consider the errors which might possibly occur. Please do not guess at this, your program must determine the values.
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