Write a C program based on the following code: int p[2]; char *argv[2]; argv[0] = "wc"; argv[1] = 0; pipe(p); if(fork() == 0) { close(0); dup(p[0]); close(p[0]); close(p[1]); exec("/bin/wc", argv); } else { close(p[0]); write(p[1], "hello world\n", 12); close(p[1]); } The program must accept the name of a file as a command line argument in argv and pipe the contents of that named file to wc similar to the way the sample code pipes a constant string to wc. Program should compile and work in Linux and xv6.
Write a C program based on the following code: int p[2]; char *argv[2]; argv[0] = "wc"; argv[1] = 0; pipe(p); if(fork() == 0) { close(0); dup(p[0]); close(p[0]); close(p[1]); exec("/bin/wc", argv); } else { close(p[0]); write(p[1], "hello world\n", 12); close(p[1]); } The program must accept the name of a file as a command line argument in argv and pipe the contents of that named file to wc similar to the way the sample code pipes a constant string to wc. Program should compile and work in Linux and xv6.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Write a C program based on the following code:
int p[2];
char *argv[2];
argv[0] = "wc";
argv[1] = 0;
pipe(p);
if(fork() == 0) {
close(0);
dup(p[0]);
close(p[0]);
close(p[1]);
exec("/bin/wc", argv);
} else {
close(p[0]);
write(p[1], "hello world\n", 12);
close(p[1]);
}
The program must accept the name of a file as a command line argument in argv and pipe the contents of that named file to wc similar to the way the sample code pipes a constant string to wc. Program should compile and work in Linux and xv6.
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