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[Guest]

This is kind of pointless, but it had me entertained for a little while. This program switches all of the bytes in a file. For example, if you had a text file that said "hello world" the program would spit out "ehll oowlrd" (assuming no newline). To use in Linux, pipe in a file like this:

./byteswap <myfile >swappedfile

In Windows, I think you would type this in:

byteswap.exe <myfile >swappedfile

The program could be used to disguise files from other people, although I definitely wouldn't recommend it over encryption.
Here is the code:

#include <stdio.h>


int main()

{

	int x,y;

	while (1) {

		x=getchar();

		y=getchar();

		if (y!=EOF) {

			putchar(y);

		} else if (x!=EOF) {

			putchar(x);

			break;

		} else {

			break;

		}

		if (x!=EOF) {

			putchar(x);

		} else {

			break;

		}

	}

	return 0;

}