c function to emulate xxd -g1

hexDump.c

#include <ctype.h>

// based on https://stackoverflow.com/q/54500648/2423187
void hexDump(const uint8_t* data, int len)
{
    int i;
    unsigned char bufferLine[17];

    for (i = 0; i < len; i++) {
        if ((i % 16) == 0) {
            if (i != 0) {
                printf(" %s\n", bufferLine);
            }

            printf("%08x:", i);
        }

        printf(" %02x", data[i]);

        bufferLine[i % 16] = isprint(data[i]) ? data[i] : '.';
        bufferLine[(i % 16) + 1] = '\0';
    }

    while ((i % 16) != 0) {
        printf("   ");
        i++;
    }

    printf(" %s\n", bufferLine);
}