two terminal communicat using file name

DATA LINK LAYER PROTOCOLS
1. Protocol for an Ideal Channel and Ideal Nodes

Implement a Program in GNU C in which the sender reads data from a given file,
encapsulates the data in a frame and transmits the frame to the receiver. This goes
on till all the data is read from the file. The receiver goes on receiving the frames,
de-capsulate the data from frame and store the data in a separate file. At the end,
the original data file at the sender’s end and the contents of the file at the receiver’s
end should tally. For sender/receiver communication, use IPC mechanism
FIFO/Named Pipes in Linux/Unix environment. Use Bit-Wise operators in C
wherever applicable. Consider a simplistic frame structure consisting of only frame
data (ASCII character string). All other fields of frame are to be neglected. Use
appropriate data-types for various variables/frame structure. Take appropriate
frame size and file sizes. Assume an ideal situation where the channel is noiseless
and receiver node has infinite system resources.

• first urn tem2.c
• then run term.c

term.c

#include<stdio.h>

#include<fcntl.h>

#include<unistd.h>

#include<sys/stat.h>

#include<string.h>

int main(){

int tid;

char string[BUFSIZ];

char str[60];

FILE *fp = fopen("a.txt" , "r+");

tid=open("MyPipe",O_WRONLY);

while(fgets(string,sizeof(string),fp)){

printf("%s",string);

write(tid,string,sizeof(string));

}

unlink("MyPipe");

close(tid);

/*

*/

return 0;

}



tem2.c

#include<stdio.h>

#include<fcntl.h>

#include<unistd.h>

#include<sys/stat.h>

#include<string.h>

int main(){

int tid;

char string[BUFSIZ];

FILE *fp = fopen("aa.txt" , "w+");

mkfifo("MyPipe",0666);

tid=open("MyPipe",O_RDONLY);

while(read(tid,string,sizeof(string))){

printf("%s",string);

fprintf(fp,"%s",string);

}

printf("%s",string);

unlink("MyPipe");

close(tid);

return 0;

}