#pragma once
#include <stdio.h>
#include <ctype.h>

void hexdump(void* ptr, int buflen) {
    unsigned char* buf = (unsigned char*)ptr;
    int i, j;
    for (i = 0; i < buflen; i += 16) {
        printf("%06x: ", i);
        for (j = 0; j < 16; j++)
            if (i + j < buflen)
                printf("%02x ", buf[i + j]);
            else
                printf("   ");
        printf(" ");
        for (j = 0; j < 16; j++)
            if (i + j < buflen)
                printf("%c", isprint(buf[i + j]) ? buf[i + j] : '.');
        printf("\n");
    }
    printf("-------------------------------------------------------------------------\n");
}