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/*
* uriparser - RFC 3986 URI parsing library
*
* Copyright (C) 2007, Weijia Song <songweijia@gmail.com>
* Copyright (C) 2007, Sebastian Pipping <webmaster@hartwork.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* * Neither the name of the <ORGANIZATION> nor the names of its
* contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file UriIp4.c
* Holds the IPv4 parser implementation.
* NOTE: This source file includes itself twice.
*/
/* What encodings are enabled? */
#include <uriparser/UriDefsConfig.h>
#if (!defined(URI_PASS_ANSI) && !defined(URI_PASS_UNICODE))
/* Include SELF twice */
# ifdef URI_ENABLE_ANSI
# define URI_PASS_ANSI 1
# include "UriIp4.c"
# undef URI_PASS_ANSI
# endif
# ifdef URI_ENABLE_UNICODE
# define URI_PASS_UNICODE 1
# include "UriIp4.c"
# undef URI_PASS_UNICODE
# endif
#else
# ifdef URI_PASS_ANSI
# include <uriparser/UriDefsAnsi.h>
# else
# include <uriparser/UriDefsUnicode.h>
# endif
#ifndef URI_DOXYGEN
# include <uriparser/UriIp4.h>
# include "UriIp4Base.h"
# include <uriparser/UriBase.h>
#endif
/* Prototypes */
static const URI_CHAR * URI_FUNC(ParseDecOctet)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast);
static const URI_CHAR * URI_FUNC(ParseDecOctetOne)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast);
static const URI_CHAR * URI_FUNC(ParseDecOctetTwo)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast);
static const URI_CHAR * URI_FUNC(ParseDecOctetThree)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast);
static const URI_CHAR * URI_FUNC(ParseDecOctetFour)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast);
/*
* [ipFourAddress]->[decOctet]<.>[decOctet]<.>[decOctet]<.>[decOctet]
*/
int URI_FUNC(ParseIpFourAddress)(unsigned char * octetOutput,
const URI_CHAR * first, const URI_CHAR * afterLast) {
const URI_CHAR * after;
UriIp4Parser parser;
/* Essential checks */
if ((octetOutput == NULL) || (first == NULL)
|| (afterLast <= first)) {
return URI_ERROR_SYNTAX;
}
/* Reset parser */
parser.stackCount = 0;
/* Octet #1 */
after = URI_FUNC(ParseDecOctet)(&parser, first, afterLast);
if ((after == NULL) || (after >= afterLast) || (*after != _UT('.'))) {
return URI_ERROR_SYNTAX;
}
uriStackToOctet(&parser, octetOutput);
/* Octet #2 */
after = URI_FUNC(ParseDecOctet)(&parser, after + 1, afterLast);
if ((after == NULL) || (after >= afterLast) || (*after != _UT('.'))) {
return URI_ERROR_SYNTAX;
}
uriStackToOctet(&parser, octetOutput + 1);
/* Octet #3 */
after = URI_FUNC(ParseDecOctet)(&parser, after + 1, afterLast);
if ((after == NULL) || (after >= afterLast) || (*after != _UT('.'))) {
return URI_ERROR_SYNTAX;
}
uriStackToOctet(&parser, octetOutput + 2);
/* Octet #4 */
after = URI_FUNC(ParseDecOctet)(&parser, after + 1, afterLast);
if (after != afterLast) {
return URI_ERROR_SYNTAX;
}
uriStackToOctet(&parser, octetOutput + 3);
return URI_SUCCESS;
}
/*
* [decOctet]-><0>
* [decOctet]-><1>[decOctetOne]
* [decOctet]-><2>[decOctetTwo]
* [decOctet]-><3>[decOctetThree]
* [decOctet]-><4>[decOctetThree]
* [decOctet]-><5>[decOctetThree]
* [decOctet]-><6>[decOctetThree]
* [decOctet]-><7>[decOctetThree]
* [decOctet]-><8>[decOctetThree]
* [decOctet]-><9>[decOctetThree]
*/
static URI_INLINE const URI_CHAR * URI_FUNC(ParseDecOctet)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast) {
if (first >= afterLast) {
return NULL;
}
switch (*first) {
case _UT('0'):
uriPushToStack(parser, 0);
return first + 1;
case _UT('1'):
uriPushToStack(parser, 1);
return (const URI_CHAR *)URI_FUNC(ParseDecOctetOne)(parser, first + 1, afterLast);
case _UT('2'):
uriPushToStack(parser, 2);
return (const URI_CHAR *)URI_FUNC(ParseDecOctetTwo)(parser, first + 1, afterLast);
case _UT('3'):
case _UT('4'):
case _UT('5'):
case _UT('6'):
case _UT('7'):
case _UT('8'):
case _UT('9'):
uriPushToStack(parser, (unsigned char)(9 + *first - _UT('9')));
return (const URI_CHAR *)URI_FUNC(ParseDecOctetThree)(parser, first + 1, afterLast);
default:
return NULL;
}
}
/*
* [decOctetOne]-><NULL>
* [decOctetOne]->[DIGIT][decOctetThree]
*/
static URI_INLINE const URI_CHAR * URI_FUNC(ParseDecOctetOne)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast) {
if (first >= afterLast) {
return afterLast;
}
switch (*first) {
case _UT('0'):
case _UT('1'):
case _UT('2'):
case _UT('3'):
case _UT('4'):
case _UT('5'):
case _UT('6'):
case _UT('7'):
case _UT('8'):
case _UT('9'):
uriPushToStack(parser, (unsigned char)(9 + *first - _UT('9')));
return (const URI_CHAR *)URI_FUNC(ParseDecOctetThree)(parser, first + 1, afterLast);
default:
return first;
}
}
/*
* [decOctetTwo]-><NULL>
* [decOctetTwo]-><0>[decOctetThree]
* [decOctetTwo]-><1>[decOctetThree]
* [decOctetTwo]-><2>[decOctetThree]
* [decOctetTwo]-><3>[decOctetThree]
* [decOctetTwo]-><4>[decOctetThree]
* [decOctetTwo]-><5>[decOctetFour]
* [decOctetTwo]-><6>
* [decOctetTwo]-><7>
* [decOctetTwo]-><8>
* [decOctetTwo]-><9>
*/
static URI_INLINE const URI_CHAR * URI_FUNC(ParseDecOctetTwo)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast) {
if (first >= afterLast) {
return afterLast;
}
switch (*first) {
case _UT('0'):
case _UT('1'):
case _UT('2'):
case _UT('3'):
case _UT('4'):
uriPushToStack(parser, (unsigned char)(9 + *first - _UT('9')));
return (const URI_CHAR *)URI_FUNC(ParseDecOctetThree)(parser, first + 1, afterLast);
case _UT('5'):
uriPushToStack(parser, 5);
return (const URI_CHAR *)URI_FUNC(ParseDecOctetFour)(parser, first + 1, afterLast);
case _UT('6'):
case _UT('7'):
case _UT('8'):
case _UT('9'):
uriPushToStack(parser, (unsigned char)(9 + *first - _UT('9')));
return first + 1;
default:
return first;
}
}
/*
* [decOctetThree]-><NULL>
* [decOctetThree]->[DIGIT]
*/
static URI_INLINE const URI_CHAR * URI_FUNC(ParseDecOctetThree)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast) {
if (first >= afterLast) {
return afterLast;
}
switch (*first) {
case _UT('0'):
case _UT('1'):
case _UT('2'):
case _UT('3'):
case _UT('4'):
case _UT('5'):
case _UT('6'):
case _UT('7'):
case _UT('8'):
case _UT('9'):
uriPushToStack(parser, (unsigned char)(9 + *first - _UT('9')));
return first + 1;
default:
return first;
}
}
/*
* [decOctetFour]-><NULL>
* [decOctetFour]-><0>
* [decOctetFour]-><1>
* [decOctetFour]-><2>
* [decOctetFour]-><3>
* [decOctetFour]-><4>
* [decOctetFour]-><5>
*/
static URI_INLINE const URI_CHAR * URI_FUNC(ParseDecOctetFour)(UriIp4Parser * parser,
const URI_CHAR * first, const URI_CHAR * afterLast) {
if (first >= afterLast) {
return afterLast;
}
switch (*first) {
case _UT('0'):
case _UT('1'):
case _UT('2'):
case _UT('3'):
case _UT('4'):
case _UT('5'):
uriPushToStack(parser, (unsigned char)(9 + *first - _UT('9')));
return first + 1;
default:
return first;
}
}
#endif
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