decode

Decodes a hexadecimal string into a binary buffer. The output buffer must be half the size of the input buffer.

Function parameters

Parameters

bin:[]u8
encoded:[]const u8

(best-effort) constant time hexadecimal encoding and decoding.

Types

hex: (best-effort) constant time hexadecimal encoding and decoding.
base64: (best-effort) constant time base64 encoding and decoding.

Error sets in this namespace

Error Sets

Error

Source

Implementation

pub fn decode(bin: []u8, encoded: []const u8) error{ SizeMismatch, InvalidCharacter, InvalidPadding }!void {
    if (encoded.len % 2 != 0) {
        return error.InvalidPadding;
    }
    if (bin.len < encoded.len / 2) {
        return error.SizeMismatch;
    }
    _ = decodeAny(bin, encoded, null) catch |err| {
        switch (err) {
            error.InvalidCharacter => return error.InvalidCharacter,
            error.InvalidPadding => return error.InvalidPadding,
            else => unreachable,
        }
    };
}