How to store data from file redirect to new file using C

[jjsulzer]

Hi all,

I am working on a project that should take all the data from file redirect and write them to a new file. Here is what I have:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "node.h"
#include "tree.h"

#define TRUE 0
#define FALSE 1
#define stdin stdin
#define stdout stdout
#define stderr stderr

    int main(int argc,char *argv[])
    {
    int i;
    FILE *fp;

    fp = fopen("result.out", "w"); //create file to write stdin data to. 

    if(fp == NULL) // file validation
    {
    printf("Could not open file");
    return 0;
    }

     if(argc == 1) // executes if command line has file redirect. 
    {
    printf("Getting data from file redirect. \n");
    fprintf (fp, "%s\n", stdin); //Print arguments from redirect to fp.

    }
     printf("Completed\n");
    return 0;
    }

This code will execute fine with no errors, but result.out is empty
The file being redirected only contains words separated by spaces.
I also never know the size of the file being redirected.
I just want to copy the data from the file being redirected to result.out.

Any suggestions on how I can improve the code?

[rproffitt]

Your code is not formatted so I won't get into it but an obvious omission is the missing fclose(). Take your pick from https://www.google.com/search?q=is+fclose+required%3F

I will not debate bad practices like this. Nor will I give a passing grade to such if submitted as homework.

[Reverend Jim]

Part of the formatting problem was that the OP did not use the code tool to post the code. As such all of the lines beginning with # (because they were not indented) were interpreted as MarkDown formatting commands (header lines). I corrected that but did not bother applying proper structure indentation (my time is more valuable than that).