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Base64 encode and decode functions

## Functions

int | o_base64_encode (const unsigned char *src, size_t len, unsigned char *out, size_t *out_len)
int | o_base64_decode (const unsigned char *src, size_t len, unsigned char *out, size_t *out_len)
int | o_base64url_encode (const unsigned char *src, size_t len, unsigned char *out, size_t *out_len)
int | o_base64url_decode (const unsigned char *src, size_t len, unsigned char *out, size_t *out_len)
int | o_base64url_2_base64 (const unsigned char *src, size_t len, unsigned char *out, size_t *out_len)
int | o_base64_2_base64url (const unsigned char *src, size_t len, unsigned char *out, size_t *out_len)
int | o_base64_encode_alloc (const unsigned char *src, size_t len, struct _o_datum *dat)
int | o_base64_decode_alloc (const unsigned char *src, size_t len, struct _o_datum *dat)
int | o_base64url_encode_alloc (const unsigned char *src, size_t len, struct _o_datum *dat)
int | o_base64url_decode_alloc (const unsigned char *src, size_t len, struct _o_datum *dat)
int | o_base64url_2_base64_alloc (const unsigned char *src, size_t len, struct _o_datum *dat)
int | o_base64_2_base64url_alloc (const unsigned char *src, size_t len, struct _o_datum *dat)

## Detailed Description

## Function Documentation

## o_base64_2_base64url()

int o_base64_2_base64url | ( | const unsigned char * | src,
|  | size_t | len,
|  | unsigned char * | out,
|  | size_t * | out_len
| ) |  |

o_base64_2_base64url - Convert a base64 url format to base64 format - Does not check if src is a valid base64url

Parameters

  src | Data to be decoded
  len | Length of the data to be decoded
  out | Pointer to output variable
  out_len | Pointer to output length variable

Returns
  1 on success, 0 on failure

The nul terminator is not included in out_len. out must be at least len+2

## o_base64_2_base64url_alloc()

int o_base64_2_base64url_alloc | ( | const unsigned char * | src,
|  | size_t | len,
|  | struct _o_datum * | dat
| ) |  |

o_base64_2_base64url_alloc - Convert a base64 format to base64 url format - allocate data result in a struct _o_datum *

Parameters

  src | Data to be decoded
  len | Length of the data to be decoded
  dat | Pointer to a struct _o_datum * to store result

Returns
  1 on success, 0 on failure

dat->data must be o_free'd after use The nul terminator is not included in dat->data.

## o_base64_decode()

int o_base64_decode | ( | const unsigned char * | src,
|  | size_t | len,
|  | unsigned char * | out,
|  | size_t * | out_len
| ) |  |

o_base64_decode - Base64 decode

Parameters

  src | Data to be decoded
  len | Length of the data to be decoded
  out | Pointer to output variable, you might add up to 2 bytes to out length than expected for safety
  out_len | Pointer to output length variable

Returns
  1 on success, 0 on failure

The nul terminator is not included in out_len.

## o_base64_decode_alloc()

int o_base64_decode_alloc | ( | const unsigned char * | src,
|  | size_t | len,
|  | struct _o_datum * | dat
| ) |  |

o_base64_decode_alloc - Base64 decode - allocate data result in a struct _o_datum *

Parameters

  src | Data to be decoded
  len | Length of the data to be decoded
  dat | Pointer to a struct _o_datum * to store result

Returns
  1 on success, 0 on failure

dat->data must be o_free'd after use The nul terminator is not included in dat->data.

## o_base64_encode()

int o_base64_encode | ( | const unsigned char * | src,
|  | size_t | len,
|  | unsigned char * | out,
|  | size_t * | out_len
| ) |  |

o_base64_encode - Base64 encode

Parameters

  src | Data to be encoded
  len | Length of the data to be encoded
  out | Pointer to output variable, you might add up to 2 bytes to out length than expected for safety
  out_len | Pointer to output length variable

Returns
  1 on success, 0 on failure

The nul terminator is not included in out_len.

## o_base64_encode_alloc()

int o_base64_encode_alloc | ( | const unsigned char * | src,
|  | size_t | len,
|  | struct _o_datum * | dat
| ) |  |

o_base64_encode_alloc - Base64 encode - allocate data result in a struct _o_datum *

Parameters

  src | Data to be encoded
  len | Length of the data to be encoded
  dat | Pointer to a struct _o_datum * to store result

Returns
  1 on success, 0 on failure

dat->data must be o_free'd after use The nul terminator is not included in dat->data.

## o_base64url_2_base64()

int o_base64url_2_base64 | ( | const unsigned char * | src,
|  | size_t | len,
|  | unsigned char * | out,
|  | size_t * | out_len
| ) |  |

o_base64url_2_base64 - Convert a base64 url format to base64 format - Does not check if src is a valid base64

Parameters

  src | Data to be decoded
  len | Length of the data to be decoded
  out | Pointer to output variable
  out_len | Pointer to output length variable

Returns
  1 on success, 0 on failure

The nul terminator is not included in out_len. out must be at least len+2

## o_base64url_2_base64_alloc()

int o_base64url_2_base64_alloc | ( | const unsigned char * | src,
|  | size_t | len,
|  | struct _o_datum * | dat
| ) |  |

o_base64url_2_base64_alloc - Convert a base64 url format to base64 format - allocate data result in a struct _o_datum *

Parameters

  src | Data to be decoded
  len | Length of the data to be decoded
  dat | Pointer to a struct _o_datum * to store result

Returns
  1 on success, 0 on failure

dat->data must be o_free'd after use The nul terminator is not included in dat->data.

## o_base64url_decode()

int o_base64url_decode | ( | const unsigned char * | src,
|  | size_t | len,
|  | unsigned char * | out,
|  | size_t * | out_len
| ) |  |

o_base64url_decode - Base64 decode (url format)

Parameters

  src | Data to be decoded
  len | Length of the data to be decoded
  out | Pointer to output variable, you might add up to 2 bytes to out length than expected for safety
  out_len | Pointer to output length variable

Returns
  1 on success, 0 on failure

The nul terminator is not included in out_len.

## o_base64url_decode_alloc()

int o_base64url_decode_alloc | ( | const unsigned char * | src,
|  | size_t | len,
|  | struct _o_datum * | dat
| ) |  |

o_base64url_decode_alloc - Base64 decode (url format) - allocate data result in a struct _o_datum *

Parameters

  src | Data to be decoded
  len | Length of the data to be decoded
  dat | Pointer to a struct _o_datum * to store result

Returns
  1 on success, 0 on failure

dat->data must be o_free'd after use The nul terminator is not included in dat->data.

## o_base64url_encode()

int o_base64url_encode | ( | const unsigned char * | src,
|  | size_t | len,
|  | unsigned char * | out,
|  | size_t * | out_len
| ) |  |

o_base64url_encode - Base64url encode (url format)

Parameters

  src | Data to be encoded
  len | Length of the data to be encoded
  out | Pointer to output variable, you might add up to 2 bytes to out length than expected for safety
  out_len | Pointer to output length variable

Returns
  1 on success, 0 on failure

The nul terminator is not included in out_len.

## o_base64url_encode_alloc()

int o_base64url_encode_alloc | ( | const unsigned char * | src,
|  | size_t | len,
|  | struct _o_datum * | dat
| ) |  |

o_base64url_encode_alloc - Base64url encode (url format) - allocate data result in a struct _o_datum *

Parameters

  src | Data to be encoded
  len | Length of the data to be encoded
  dat | Pointer to a struct _o_datum * to store result

Returns
  1 on success, 0 on failure

dat->data must be o_free'd after use The nul terminator is not included in dat->data.