fif.c

#include<stdio.h>
#include<unistd.h>
#include<fcntl.h>
#include<sys/stat.h>
#include<sys/types.h>
#include<string.h>
#include<stdlib.h>
#define FIFO_FILE "MYFIFO1"
#define FIFO_FILE2 "MYFIFO2"
#define MAX_BUF 1024

void main(){
    char buf[MAX_BUF];
    int fd1,fd2;
    char un[15] = "veera";
    mkfifo(FIFO_FILE,0666);
    mkfifo(FIFO_FILE2,0666);
    while(1){
        fd1 = open(FIFO_FILE,O_WRONLY);
        printf("%s :",un);
        fgets(buf,MAX_BUF,stdin);
        buf[strcspn(buf,'\n')] = 0;
        write(fd1,buf,strlen(buf));
        close(fd1);
        if(strcmp(buf,"stop") == 0){
            break;
        }else{
            char buf2[MAX_BUF];
            fd2 = open(FIFO_FILE2,O_RDONLY);
            read(fd2,buf2,MAX_BUF);
            strcspn(buf2,'\n');
            if(strcmp(buf2,"stop") == 0){
                break;
            }else{
                printf("Other user: %s\n",buf2);
            }
            close(fd2);
        }
    }



}