#include<stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>


#define pathname "/tmp/chat_file.data"

int main(){


    if(mkfifo(pathname, S_IRWXU) == -1){
        perror("something went wrong");
    }

    char * buff = NULL;
    char * readbuff = NULL;
    int res;
    size_t len = 0;

    //FILE * fr = fopen(pathname, "r");
    //FILE * fw = fopen(pathname, "w");

    int fd = open(pathname, O_WRONLY);

    while((res = getline(&buff, &len, stdin)) != -1){
        //fprintf(fw, "%s", buff);
        write(fd, buff, len);

        if((res = getline(&readbuff, &len, fd)) != -1){
            printf("IN: %s", readbuff);
        } else {
            break;
        }
    }

    return 0;
}