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

int main(int argc, char *argv[])
{
        int c;
        FILE *src, *dst;

        if (argc != 3) {
                fprintf(stderr, "Usage: %s from_file to_file\n", argv[0]);
                exit(1);
        }

        src = fopen(argv[1], "r");
        if (src == NULL) {
                perror(argv[1]);
                exit(1);
        }

        dst = fopen(argv[2], "w");
        if (dst == NULL) {
                perror(argv[2]);
                fclose(src);
                exit(1);
        }

        while ((c = fgetc(src)) != EOF) {
                fputc(c, dst);
        }

        fclose(src);
        fclose(dst);

        return 0;
}