hexify.c

Convert binary data (unsigned char*) into a hexidecimal string

Installation

Install with clib:

$ clib install pepaslabs/hexify.c

API

int hexify(unsigned char *in, size_t in_size, char *out, size_t out_size);

Example

Dump the following into a terminal to create a demo program:

cd /tmp
cat > main.c << 'EOF'
#include <stdlib.h>
#include <stdio.h>

#include "hexify/hexify.h"

int main(int argc, char **argv) {
    // pack a binary array
    unsigned char binary[4];
    binary[0] = 0xde;
    binary[1] = 0xad;
    binary[2] = 0xbe;
    binary[3] = 0xef;

    // convert it into a hex string
    char hex[8+1];
    hexify(binary, sizeof(binary), hex, sizeof(hex));

    // print the result
    printf("%s\n", hex);

    return EXIT_SUCCESS;
}
EOF
clib install pepaslabs/hexify.c
gcc -Wall -Werror -c deps/hexify/*.c
gcc -Wall -Werror -Ideps *.o main.c

Try it out:

$ ./a.out
deadbeef

License

MIT