# sasl_encode64 - Encode base64 string

## Synopsis

    #include <sasl/saslutil.h>

    int sasl_encode64(const char * input,
                    unsigned inputlen,
                    char * output,
                    unsigned outmax,
                    unsigned * outputlen);

## Description

Use the sasl_encode64() interface to convert an octet string into a base64 string. This routine is useful for SASL profiles that use base64, such as the IMAP (IMAP4) and POP (POP_AUTH) profiles. The output is null‐terminated. If outlen is non‐NULL, the length is placed in the outlen.

int sasl_encode64(const char * input,
unsigned inputlen,
const char ** output,
unsigned outmax,
unsigned * outputlen);
  Parameters:

    - input – input data.

    - inputlen – length of the input data.

    - output – contains the decoded data. The value of out can be the same as in. However, there must be enough space.

    - outputlen – length of output.

    - outmax – The maximum size of the output buffer.

## Return Value

SASL functions should return SASL return codes. See sasl.h for a complete list. `SASL_OK` indicates success.

Other return codes indicate errors and should be handled.

## See Also

RFC 4422,:saslman:sasl(3), sasl_decode64(3), sasl_errors(3), sasl_encode(3)