19e.c

/*
============================================================================
Name : 19e
Author : Piyush Singh
Description : Create a FIFO file by
a. mknod command
b. mkfifo command
c. use strace command to find out, which command (mknod or mkfifo) is better.
c. mknod system call
d. mkfifo library function
Date: 19th Sep, 2025.
============================================================================
*/
// Program: Create FIFO using mkfifo() library function

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

int main() 
{
    const char *fifo_name = "fifo_mkfifo";

    // Create FIFO using mkfifo library function
    if (mkfifo(fifo_name, 0666) == -1) 
    {
        perror("❌ mkfifo failed");
        exit(1);
    }

    printf("✅ FIFO created using mkfifo(): %s\n", fifo_name);
    return 0;
}

/*
Output:
╰─ ./19e                                                                      ─╯
✅ FIFO created using mkfifo(): fifo_mkfifo
*/