libutils/src/utils/utils.c

#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stddef.h>
#include <stdio.h>
#include <malloc.h>
#include <utils/logger.h>

// https://gist.github.com/ccbrown/9722406
void dumpHex(const void* data, size_t size) {
    char ascii[17];
    size_t i, j;
    ascii[16] = '\0';
    DEBUG_FUNCTION_LINE("0x%08X (0x0000): ", data);
    for (i = 0; i < size; ++i) {
        log_printf("%02X ", ((unsigned char*)data)[i]);
        if (((unsigned char*)data)[i] >= ' ' && ((unsigned char*)data)[i] <= '~') {
            ascii[i % 16] = ((unsigned char*)data)[i];
        } else {
            ascii[i % 16] = '.';
        }
        if ((i+1) % 8 == 0 || i+1 == size) {
            log_printf(" ");
            if ((i+1) % 16 == 0) {
                log_printf("|  %s \n", ascii);
                if(i + 1 < size) {
                    DEBUG_FUNCTION_LINE("0x%08X (0x%04X); ", data + i + 1,i+1);
                }
            } else if (i+1 == size) {
                ascii[(i+1) % 16] = '\0';
                if ((i+1) % 16 <= 8) {
                    log_printf(" ");
                }
                for (j = (i+1) % 16; j < 16; ++j) {
                    log_printf("   ");
                }
                log_printf("|  %s \n", ascii);
            }
        }
    }
}