hob64

hob64 is a Header-Only Base64 library written in portable ANSI C.

Features

• Portable ANSI C (C89), tested with GCC (Windows and Linux), Clang (macOS), and MSVC
• Encodes and decodes Base64 strings
• Checks to-be-decoded strings for validity

Usage

Define the implementation before including hob64.

#defineHOB64_IMPLEMENTATION#include"hob64.h"

As usual with header-only libraries, the implementation's definition can be limited to just a single file. This will depend on your specific build configuration.

Encode binary data to Base64 by providing the data and its length, getting a Base64-encoded string and its length (via an output parameter) as a result.

constchar*unencodedData="hob64 is a Header-Only Base64 library.";
size_tencodedLength;
char*encoded=hob64_encode((constunsigned char*)unencodedData, strlen(unencodedData), &encodedLength);
free(encoded);

Remember to free the data when you're done with it.

Decode Base64-encoded strings by providing the string and its length, getting an array of bytes and its length (via an output parameter) as a result.

constunsigned char*encodedString="aG9iNjQgaXMgYSBIZWFkZXItT25seSBCYXNlNjQgbGlicmFyeS4=";
size_tdecodedLength;
unsigned char*decoded=hob64_decode(encodedData, strlen(encodedString), &decodedLength);
free(decoded);