/*
 * Program to copy characters from file supplied as command-line argument
 * to file supplied as command-line argument.
 */
#include <stdio.h>

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

	int inchar;
	FILE *infile;
	FILE *outfile;

	if (argc < 3) {
		fprintf(stderr, "usage:  %s infile outfile\n", argv[0]);
		return 1;
	}

	infile = fopen(argv[1], "rb");
	if (infile == NULL) {
		fprintf(stderr, "unable to open input file %s\n", argv[1]);
		return 1;
	}

	outfile = fopen(argv[2], "wb");
	if (outfile == NULL) {
		fprintf(stderr, "unable to open output file %s\n", argv[2]);
		return 1;
	}

	while ( (inchar = fgetc(infile)) != EOF ) {
		fputc(inchar, outfile);
	}
	fclose(infile);
	fclose(outfile);

	return 0;
}