Computer Systems: A Programmer's Perspective (3rd Edition)
3rd Edition
ISBN: 9780134092669
Author: Bryant, Randal E. Bryant, David R. O'Hallaron, David R., Randal E.; O'Hallaron, Bryant/O'hallaron
Publisher: PEARSON
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Expert Solution & Answer
Chapter 10, Problem 10.10HW
Explanation of Solution
Modified code from figure 10.5:
The modified code for “cpfile.c” is shown below:
//Include header file
#include <stdio.h>
#include "csapp.h"
//Main function
int main(int argc, char* argv[])
{
//Declare "int" variable
int n;
//Create the object for read buffer of type
rio_t rio;
//Declare "MAXLINE" for memory
char buf[MAXLINE];
/* Check the command line arguments. If the command line contains two argument, then copy the infile to standard output */
if (argc == 2)
{
/* Store the descriptor number in "fd" */
int fd = Open(argv[1], O_RDONLY, 0);
while ((n = Rio_readn(fd, buf, MAXBUF)) != 0)
Rio_writen(STDOUT_FILENO, buf, n);
//Exit the process
exit(0);
}
/* Otherwise copy a text file from standard input to...
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Chapter 10 Solutions
Computer Systems: A Programmer's Perspective (3rd Edition)
Ch. 10.3 - Prob. 10.1PPCh. 10.8 - Practice Problem 10.2 (solution page 915) Suppose...Ch. 10.8 - Practice Problem 10.3 (solution page 915) As...Ch. 10.9 - Prob. 10.4PPCh. 10.9 - Practice Problem 10.5 (solution page 916) Assuming...Ch. 10 - Prob. 10.6HWCh. 10 - Prob. 10.7HWCh. 10 - Write a version of the statcheck program in Figure...Ch. 10 - Consider the following invocation of the...Ch. 10 - Prob. 10.10HW
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