// cp <file1> <file2>
// implemented with fgetc
// ./cp_fgetc data.txt data2.txt
// diff data.txt data2.txt
// ./cp_fgetc f f2
// diff f f2

// diff if our imp is broken.

#include <stdio.h>


int main(int argc, char *argv[]) {
    if (argc != 3) {
        fprintf(stderr, "Usage: %s <source file> <destination file>\n", argv[0]);
        return 1;
    }
    
    FILE *input_stream = fopen(argv[1], "r");
    if (input_stream == NULL) {
        perror("");
    }

    FILE *output_stream = fopen(argv[2], "w");
    if (output_stream == NULL) {
        perror("");
    }

    int byte;
    while ((byte = fgetc(input_stream)) != EOF) {
        fputc(byte, output_stream);
    }

     
    fclose(input_stream);
    fclose(output_stream); 
    return 0;
}