-
-
Save holodnak/bfb48981d3c8adfc31984ae4ad4b4705 to your computer and use it in GitHub Desktop.
Compact C Hex Dump Function w/ASCII
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#include <stdio.h> | |
void DumpHex(const void* data, size_t size) { | |
char ascii[17]; | |
size_t i, j; | |
ascii[16] = '\0'; | |
for (i = 0; i < size; ++i) { | |
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) { | |
printf(" "); | |
if ((i+1) % 16 == 0) { | |
printf("| %s \n", ascii); | |
} else if (i+1 == size) { | |
ascii[(i+1) % 16] = '\0'; | |
if ((i+1) % 16 <= 8) { | |
printf(" "); | |
} | |
for (j = (i+1) % 16; j < 16; ++j) { | |
printf(" "); | |
} | |
printf("| %s \n", ascii); | |
} | |
} | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment