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

int main(int argc,char *argv[])
{
    FILE *dump_me;
    int i;
    int x = 0;

/* Check for filename argument */
    if(argc<2)
    {
        puts("Format: DUMP filename");
        exit(1);
    }

/* OPen the file argv[1] in read-binary mode */
    dump_me = fopen(argv[1],"rb");
    if(dump_me==NULL)
    {
        printf("Error opening %s\n",argv[1]);
        exit(1);
    }

/* Display file's contents in hex */
    while((i=fgetc(dump_me))!= EOF)
    {
        printf("%0.2X ",i);
        x++;
        if(!(x%16)) putchar('\n');
    }
    fclose(dump_me);

/* file trivia display */
    printf("\n%s: size = %u bytes\n",argv[1],x);
    return(0);
}