openpilot_comma/external/zmq/share/man/man3/zarmour.3

'\" t
.\"     Title: zarmour
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.76.1 <http://docbook.sf.net/>
.\"      Date: 12/31/2016
.\"    Manual: CZMQ Manual
.\"    Source: CZMQ 4.0.2
.\"  Language: English
.\"
.TH "ZARMOUR" "3" "12/31/2016" "CZMQ 4\&.0\&.2" "CZMQ Manual"
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.SH "NAME"
zarmour \- armoured text encoding and decoding
.SH "SYNOPSIS"
.sp
.nf
//  This is a stable class, and may not change except for emergencies\&. It
//  is provided in stable builds\&.
#define ZARMOUR_MODE_BASE64_STD 0           // Standard base 64
#define ZARMOUR_MODE_BASE64_URL 1           // URL and filename friendly base 64
#define ZARMOUR_MODE_BASE32_STD 2           // Standard base 32
#define ZARMOUR_MODE_BASE32_HEX 3           // Extended hex base 32
#define ZARMOUR_MODE_BASE16 4               // Standard base 16
#define ZARMOUR_MODE_Z85 5                  // Z85 from ZeroMQ RFC 32

//  Create a new zarmour
CZMQ_EXPORT zarmour_t *
    zarmour_new (void);

//  Destroy the zarmour
CZMQ_EXPORT void
    zarmour_destroy (zarmour_t **self_p);

//  Encode a stream of bytes into an armoured string\&. Returns the armoured
//  string, or NULL if there was insufficient memory available to allocate
//  a new string\&.
//  Caller owns return value and must destroy it when done\&.
CZMQ_EXPORT char *
    zarmour_encode (zarmour_t *self, const byte *data, size_t size);

//  Decode an armoured string into a chunk\&. The decoded output is
//  null\-terminated, so it may be treated as a string, if that\*(Aqs what
//  it was prior to encoding\&.
//  Caller owns return value and must destroy it when done\&.
CZMQ_EXPORT zchunk_t *
    zarmour_decode (zarmour_t *self, const char *data);

//  Get the mode property\&.
CZMQ_EXPORT int
    zarmour_mode (zarmour_t *self);

//  Get printable string for mode\&.
CZMQ_EXPORT const char *
    zarmour_mode_str (zarmour_t *self);

//  Set the mode property\&.
CZMQ_EXPORT void
    zarmour_set_mode (zarmour_t *self, int mode);

//  Return true if padding is turned on\&.
CZMQ_EXPORT bool
    zarmour_pad (zarmour_t *self);

//  Turn padding on or off\&. Default is on\&.
CZMQ_EXPORT void
    zarmour_set_pad (zarmour_t *self, bool pad);

//  Get the padding character\&.
CZMQ_EXPORT char
    zarmour_pad_char (zarmour_t *self);

//  Set the padding character\&.
CZMQ_EXPORT void
    zarmour_set_pad_char (zarmour_t *self, char pad_char);

//  Return if splitting output into lines is turned on\&. Default is off\&.
CZMQ_EXPORT bool
    zarmour_line_breaks (zarmour_t *self);

//  Turn splitting output into lines on or off\&.
CZMQ_EXPORT void
    zarmour_set_line_breaks (zarmour_t *self, bool line_breaks);

//  Get the line length used for splitting lines\&.
CZMQ_EXPORT size_t
    zarmour_line_length (zarmour_t *self);

//  Set the line length used for splitting lines\&.
CZMQ_EXPORT void
    zarmour_set_line_length (zarmour_t *self, size_t line_length);

//  Print properties of object
CZMQ_EXPORT void
    zarmour_print (zarmour_t *self);

//  Self test of this class\&.
CZMQ_EXPORT void
    zarmour_test (bool verbose);

Please add \*(Aq@interface\*(Aq section in \*(Aq\&./\&.\&./src/zarmour\&.c\*(Aq\&.
.fi
.SH "DESCRIPTION"
.sp
zarmour \- armoured text encoding and decoding
.sp
The zarmour class implements encoding and decoding of armoured text data\&. The following codecs are implemented: * RFC 4648 (\m[blue]\fBhttp://www\&.ietf\&.org/rfc/rfc4648\&.txt\fR\m[]) \- base64 \- base64url \- base32 \- base32hex \- base16 * Z85 (\m[blue]\fBhttp://rfc\&.zeromq\&.org/spec:32\fR\m[]) All RFC4648 base64 and base32 variants support padding the output\&. The pad character is configurable\&. Default is padding on, with character \fI=\fR\&. Additionally, in some cases (e\&.g\&. MIME), splitting the output into lines of a specific length is required\&. This feature is also supported, though turned off by default\&. The z85 mode does neither padding nor line breaks; it is merely a wrapping of the corresponding libzmq methods\&. Encoding will assert if input length is not divisible by 4 and decoding will assert if input length is not divisible by 5\&.
.SH "EXAMPLE"
.PP
\fBFrom zarmour_test method\fR. 
.sp
.if n \{\
.RS 4
.\}
.nf
zarmour_t *self = zarmour_new ();
assert (self);

int mode = zarmour_mode (self);
assert (mode == ZARMOUR_MODE_BASE64_STD);

zarmour_set_mode (self, ZARMOUR_MODE_BASE64_URL);
mode = zarmour_mode (self);
assert (mode == ZARMOUR_MODE_BASE64_URL);

assert (zarmour_pad (self));
zarmour_set_pad (self, false);
assert (!zarmour_pad (self));

assert (zarmour_pad_char (self) == \*(Aq=\*(Aq);
zarmour_set_pad_char (self, \*(Aq!\*(Aq);
assert (zarmour_pad_char (self) == \*(Aq!\*(Aq);
zarmour_set_pad_char (self, \*(Aq=\*(Aq);
assert (zarmour_pad_char (self) == \*(Aq=\*(Aq);

assert (!zarmour_line_breaks (self));
zarmour_set_line_breaks (self, true);
assert (zarmour_line_breaks (self));

assert (zarmour_line_length (self) == 72);
zarmour_set_line_length (self, 64);
assert (zarmour_line_length (self) == 64);

//  Test against test vectors from RFC4648\&.
zarmour_set_mode (self, ZARMOUR_MODE_BASE64_STD);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "Zg", verbose);
s_armour_test (self, "fo", "Zm8", verbose);
s_armour_test (self, "foo", "Zm9v", verbose);
s_armour_test (self, "foob", "Zm9vYg", verbose);
s_armour_test (self, "fooba", "Zm9vYmE", verbose);
s_armour_test (self, "foobar", "Zm9vYmFy", verbose);
zarmour_set_pad (self, true);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "Zg==", verbose);
s_armour_test (self, "fo", "Zm8=", verbose);
s_armour_test (self, "foo", "Zm9v", verbose);
s_armour_test (self, "foob", "Zm9vYg==", verbose);
s_armour_test (self, "fooba", "Zm9vYmE=", verbose);
s_armour_test (self, "foobar", "Zm9vYmFy", verbose);

zarmour_set_pad (self, false);
zarmour_set_mode (self, ZARMOUR_MODE_BASE64_URL);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "Zg", verbose);
s_armour_test (self, "fo", "Zm8", verbose);
s_armour_test (self, "foo", "Zm9v", verbose);
s_armour_test (self, "foob", "Zm9vYg", verbose);
s_armour_test (self, "fooba", "Zm9vYmE", verbose);
s_armour_test (self, "foobar", "Zm9vYmFy", verbose);
zarmour_set_pad (self, true);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "Zg==", verbose);
s_armour_test (self, "fo", "Zm8=", verbose);
s_armour_test (self, "foo", "Zm9v", verbose);
s_armour_test (self, "foob", "Zm9vYg==", verbose);
s_armour_test (self, "fooba", "Zm9vYmE=", verbose);
s_armour_test (self, "foobar", "Zm9vYmFy", verbose);

zarmour_set_pad (self, false);
zarmour_set_mode (self, ZARMOUR_MODE_BASE32_STD);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "MY", verbose);
s_armour_test (self, "fo", "MZXQ", verbose);
s_armour_test (self, "foo", "MZXW6", verbose);
s_armour_test (self, "foob", "MZXW6YQ", verbose);
s_armour_test (self, "fooba", "MZXW6YTB", verbose);
s_armour_test (self, "foobar", "MZXW6YTBOI", verbose);
s_armour_decode (self, "my", "f", verbose);
s_armour_decode (self, "mzxq", "fo", verbose);
s_armour_decode (self, "mzxw6", "foo", verbose);
s_armour_decode (self, "mzxw6yq", "foob", verbose);
s_armour_decode (self, "mzxw6ytb", "fooba", verbose);
s_armour_decode (self, "mzxw6ytboi", "foobar", verbose);
zarmour_set_pad (self, true);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "MY======", verbose);
s_armour_test (self, "fo", "MZXQ====", verbose);
s_armour_test (self, "foo", "MZXW6===", verbose);
s_armour_test (self, "foob", "MZXW6YQ=", verbose);
s_armour_test (self, "fooba", "MZXW6YTB", verbose);
s_armour_test (self, "foobar", "MZXW6YTBOI======", verbose);
s_armour_decode (self, "my======", "f", verbose);
s_armour_decode (self, "mzxq====", "fo", verbose);
s_armour_decode (self, "mzxw6===", "foo", verbose);
s_armour_decode (self, "mzxw6yq=", "foob", verbose);
s_armour_decode (self, "mzxw6ytb", "fooba", verbose);
s_armour_decode (self, "mzxw6ytboi======", "foobar", verbose);

zarmour_set_pad (self, false);
zarmour_set_mode (self, ZARMOUR_MODE_BASE32_HEX);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "CO", verbose);
s_armour_test (self, "fo", "CPNG", verbose);
s_armour_test (self, "foo", "CPNMU", verbose);
s_armour_test (self, "foob", "CPNMUOG", verbose);
s_armour_test (self, "fooba", "CPNMUOJ1", verbose);
s_armour_test (self, "foobar", "CPNMUOJ1E8", verbose);
s_armour_decode (self, "co", "f", verbose);
s_armour_decode (self, "cpng", "fo", verbose);
s_armour_decode (self, "cpnmu", "foo", verbose);
s_armour_decode (self, "cpnmuog", "foob", verbose);
s_armour_decode (self, "cpnmuoj1", "fooba", verbose);
s_armour_decode (self, "cpnmuoj1e8", "foobar", verbose);
zarmour_set_pad (self, true);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "CO======", verbose);
s_armour_test (self, "fo", "CPNG====", verbose);
s_armour_test (self, "foo", "CPNMU===", verbose);
s_armour_test (self, "foob", "CPNMUOG=", verbose);
s_armour_test (self, "fooba", "CPNMUOJ1", verbose);
s_armour_test (self, "foobar", "CPNMUOJ1E8======", verbose);
s_armour_decode (self, "co======", "f", verbose);
s_armour_decode (self, "cpng====", "fo", verbose);
s_armour_decode (self, "cpnmu===", "foo", verbose);
s_armour_decode (self, "cpnmuog=", "foob", verbose);
s_armour_decode (self, "cpnmuoj1", "fooba", verbose);
s_armour_decode (self, "cpnmuoj1e8======", "foobar", verbose);
zarmour_set_pad (self, true);

zarmour_set_mode (self, ZARMOUR_MODE_BASE16);
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "f", "66", verbose);
s_armour_test (self, "fo", "666F", verbose);
s_armour_test (self, "foo", "666F6F", verbose);
s_armour_test (self, "foob", "666F6F62", verbose);
s_armour_test (self, "fooba", "666F6F6261", verbose);
s_armour_test (self, "foobar", "666F6F626172", verbose);
s_armour_decode (self, "666f", "fo", verbose);
s_armour_decode (self, "666f6f", "foo", verbose);
s_armour_decode (self, "666f6f62", "foob", verbose);
s_armour_decode (self, "666f6f6261", "fooba", verbose);
s_armour_decode (self, "666f6f626172", "foobar", verbose);

#ifdef _INCLUDE_Z85
//  Z85 test is homemade; using 0, 4 and 8 bytes, with precalculated
//  test vectors created with a libzmq test\&.
//  \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-

//  Make a fake curve key from hex (base16) string, making sure
//  there are no null bytes inside, so we can use our test utility
zarmour_set_mode (self, ZARMOUR_MODE_BASE16);
zarmour_set_line_breaks (self, false);

zchunk_t *chunk = zarmour_decode (self,
    "4E6F87E2FB6EB22A1EF5E257B75D79124949565F0B8B36A878A4F03111C96E0B");
assert (chunk);

zarmour_set_mode (self, ZARMOUR_MODE_Z85);  //  Z85 mode does not support padding or line breaks
zarmour_set_pad (self, false);              //  so these two are superfluous;
zarmour_set_line_breaks (self, false);      //  just for consistency
if (verbose)
    zarmour_print (self);

s_armour_test (self, "", "", verbose);
s_armour_test (self, "foob", "w]zP%", verbose);
s_armour_test (self, "foobar!!", "w]zP%vr9Im", verbose);
s_armour_test (self, (char *) zchunk_data (chunk),
               "ph+{E}!&X?9}!I]W{sm(nL8@&3Yu{wC+<*\-5Y[[#", verbose);
zchunk_destroy (&chunk);
#endif

//  Armouring longer byte array to test line breaks
zarmour_set_pad (self, true);
zarmour_set_line_breaks (self, true);
byte test_data [256];
int index;
for (index = 0; index < 256; index++)
    test_data [index] = index;

zarmour_set_mode (self, ZARMOUR_MODE_BASE64_STD);
s_armour_test_long (self, test_data, 256, verbose);
zarmour_set_mode (self, ZARMOUR_MODE_BASE64_URL);
s_armour_test_long (self, test_data, 256, verbose);
zarmour_set_mode (self, ZARMOUR_MODE_BASE32_STD);
s_armour_test_long (self, test_data, 256, verbose);
zarmour_set_mode (self, ZARMOUR_MODE_BASE32_HEX);
s_armour_test_long (self, test_data, 256, verbose);
zarmour_set_mode (self, ZARMOUR_MODE_BASE16);
s_armour_test_long (self, test_data, 256, verbose);
#ifdef _INCLUDE_Z85
zarmour_set_mode (self, ZARMOUR_MODE_Z85);
s_armour_test_long (self, test_data, 256, verbose);
#endif

zarmour_destroy (&self);
.fi
.if n \{\
.RE
.\}
.sp
.SH "AUTHORS"
.sp
The czmq manual was written by the authors in the AUTHORS file\&.
.SH "RESOURCES"
.sp
Main web site: \m[blue]\fB\%\fR\m[]
.sp
Report bugs to the email <\m[blue]\fBzeromq\-dev@lists\&.zeromq\&.org\fR\m[]\&\s-2\u[1]\d\s+2>
.SH "COPYRIGHT"
.sp
Copyright (c) the Contributors as noted in the AUTHORS file\&. This file is part of CZMQ, the high\-level C binding for 0MQ: http://czmq\&.zeromq\&.org\&. This Source Code Form is subject to the terms of the Mozilla Public License, v\&. 2\&.0\&. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla\&.org/MPL/2\&.0/\&. LICENSE included with the czmq distribution\&.
.SH "NOTES"
.IP " 1." 4
zeromq-dev@lists.zeromq.org
.RS 4
\%mailto:zeromq-dev@lists.zeromq.org
.RE