oath_hex2bin(3)

oath_hex2bin3

Api function

Usage

#include <oath.h>

int oath_hex2bin(const char * hexstr, char * binstr, size_t * binlen);

Arguments

const char * hexstr

input string with hex data

char * binstr

output string that holds binary data, or NULL

size_t * binlen

output variable holding needed length of binstr

Overview

Convert string with hex data to binary data.

Non-hexadecimal data are not ignored but instead will lead to an OATH_INVALID_HEX error.

If binstr is NULL, then binlen will be populated with the necessary length. If the binstr buffer is too small, OATH_TOO_SMALL_BUFFER is returned and binlen will contain the necessary length.

Returns

On success, OATH_OK (zero) is returned, otherwise an error code is returned.

Releases

4 releases since Debian 11 (Bullseye); the text changed 3 times.

  1. 11
  2. 12
  3. 13
  4. Arch

Reporting bugs

Report bugs to <[email protected]>. liboath home page: https://oath-toolkit.codeberg.page/ General help using GNU software: http://www.gnu.org/gethelp/

From oath-toolkit 2.6.15-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.