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173 lines
3.6 KiB
173 lines
3.6 KiB
/*
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* $Id$
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*
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* Copyright (C) 2007 Raphael Coeffic
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*
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* This file is part of sems, a free SIP media server.
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*
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* sems is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* For a license to use the ser software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* sems is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _parse_common_h
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#define _parse_common_h
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#include "cstring.h"
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#include <list>
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using std::list;
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//
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// Constants
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//
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#define UNDEFINED_ERR -1
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#define UNEXPECTED_EOT -2
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#define UNEXPECTED_EOL -3
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#define MALFORMED_SIP_MSG -4
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#define MALFORMED_URI -5
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#define IS_IN(c,l,r) (((c)>=(l))&&((c)<=(r)))
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#define CR (0x0d)
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#define LF (0x0a)
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#define SP (0x20)
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#define HTAB (0x09)
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#define IS_WSP(c) (0x20==(c)||0x09==(c))
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#define HCOLON (':')
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#define COMMA (',')
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#define DQUOTE ('"')
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#define BACKSLASH ('\\')
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#define IS_ALPHA(c) (IS_IN(c,0x41,0x5a) || IS_IN(c,0x61,0x7a))
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#define IS_DIGIT(c) IS_IN(c,0x30,0x39)
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#define IS_ALPHANUM(c) (IS_ALPHA(c) || IS_DIGIT(c))
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#define IS_UPPER(c) IS_IN(c,0x41,0x5a)
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#define LOWER_B(c) (IS_UPPER(c) ? ((c)+0x20) : (c))
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#define IS_TOKEN(c) \
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(IS_ALPHANUM(c) || \
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((c)=='-') || ((c)=='.') || ((c)=='!') || ((c)=='%') || \
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((c)=='*') || ((c)=='_') || ((c)=='+') || ((c)=='`') || \
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((c)=='\'') || ((c)=='~') )
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#define IS_MARK(c) \
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(((c)=='-') || ((c)=='_') || ((c)=='.') || ((c)=='!') || \
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((c)=='~') || ((c)=='*') || ((c)=='\'') || ((c)=='(') || \
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((c)==')') )
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#define IS_UNRESERVED(c) \
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(IS_ALPHANUM(c) || IS_MARK(c))
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#define IS_USER_UNRESERVED(c) \
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(((c)=='&') || ((c)=='=') || ((c)=='+') || ((c)=='$') || \
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((c)==',') || ((c)==';') || ((c)=='?') || ((c)=='/'))
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#define IS_USER(c) \
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(IS_UNRESERVED(c) || IS_USER_UNRESERVED(c)) // Escaped chars missing
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#define SIPVER_len 7 // "SIP" "/" 1*DIGIT 1*DIGIT
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//
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// Common states: (>100)
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//
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enum {
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ST_CR=100,
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ST_LF,
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ST_CRLF,
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ST_EoL_WSP // [CR] LF WSP
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};
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#define case_CR_LF \
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case CR:\
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saved_st = st;\
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st = ST_CR;\
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break;\
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case LF:\
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saved_st = st;\
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st = ST_LF;\
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break
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#define case_ST_CR(c) \
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case ST_CR:\
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if((c) == LF){\
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st = ST_CRLF;\
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}\
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else {\
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DBG("CR without LF\n");\
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return MALFORMED_SIP_MSG;\
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}\
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break
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//
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// Structs
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//
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struct sip_avp
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{
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cstring name;
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cstring value;
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sip_avp()
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: name(), value()
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{}
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sip_avp(const cstring& n,
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const cstring& v)
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: name(n),value(v)
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{}
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};
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//
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// Functions
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//
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inline int lower_cmp(const char* l, const char* r, int len)
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{
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const char* end = l+len;
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while(l!=end){
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if( LOWER_B(*l) != *r ){
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return 1;
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}
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l++; r++;
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}
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return 0;
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}
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int parse_sip_version(const char* beg, int len);
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int parse_gen_params(list<sip_avp*>* params, const char** c, int len, char stop_char);
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#endif
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/** EMACS **
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* Local variables:
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* mode: c++
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* c-basic-offset: 4
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* End:
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*/
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