small helper program to print the error messages for integer system error codes. use as follows: ./dumperror <code>

dumperror.c

/*
   small helper program to print the error messages for 
   integer error codes. use as follows:

   gcc -Wall -Wextra -pedantic dumperror.c
   ./dumperror <code>

   where code is the error number you're interested in
*/

#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>


int main (int argc, char* argv[]) {
  int code;

  if (argc != 2) {
    fprintf(stderr, "usage %s <code>\n", argv[0]);
    exit(1);
  }

  code = (int) atoi(argv[1]);
  printf("%s\n", strerror(code));

  return 0;
}