b2h is a public domain minimal binary to header util that you can still embed into another program or use by itself. Just a single function and, when compiling standalone, it is its own utility. Written in an hour because I was tired of making xxd a dependency in my build scripts.
b2h automatically appends a null terminator regardless of input. This will affect sizeof on the array var so the actual length is the <file-in-identifier>_len var.
b2h supports files over 4gb, but it has to run on a 64-bit machine.
c2d <file-in> <file-out.h>
Whose output file produced contains an unsigned long (unsigned long long if over ULONG_MAX) identifierized-name_len length and an unsigned char array called identifierized-name (path/to/file.txt -> path_to_file_txt_len & path_to_file_txt).
#define B2H_IMPLEMENTATION
#include "b2h.c"
...
header_data = b2h("file_name.txt", file_data, file_data_len);Public Domain
Unlicense (international public domain)