143 lines
3.2 KiB
C++
143 lines
3.2 KiB
C++
/**
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* util.cpp
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* Yet Another SIP Stack
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* This file is part of the YATE Project http://YATE.null.ro
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*
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* Yet Another Telephony Engine - a fully featured software PBX and IVR
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* Copyright (C) 2004-2006 Null Team
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*
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* This program 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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* This program 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "util.h"
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#include <string.h>
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namespace TelEngine {
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static const char* compactForms[] = {
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"a", "Accept-Contact",
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"u", "Allow-Events",
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"i", "Call-ID",
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"m", "Contact",
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"e", "Content-Encoding",
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"l", "Content-Length",
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"c", "Content-Type",
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"o", "Event",
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"f", "From",
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"y", "Identity",
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"n", "Identity-Info",
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"r", "Refer-To",
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"b", "Referred-By",
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"j", "Reject-Contact",
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"d", "Request-Disposition",
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"x", "Session-Expires",
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"s", "Subject",
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"k", "Supported",
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"t", "To",
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"v", "Via",
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0 };
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// Utility function, returns an uncompacted header name
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const char* uncompactForm(const char* header)
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{
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if (header && header[0] && !header[1]) {
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char c = header[0];
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const char **p = compactForms;
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for (; *p; p += 2)
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if (**p == c)
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return *++p;
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}
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return header;
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}
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// Utility function, returns a compacted header name
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const char* compactForm(const char* header)
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{
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if (header && *header) {
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const char **p = compactForms;
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for (; *p; p += 2)
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if (!::strcasecmp(p[1],header))
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return p[0];
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}
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return header;
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}
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// Utility function, puts quotes around a string
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void addQuotes(String& str)
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{
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str.trimBlanks();
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int l = str.length();
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if ((l < 2) || (str[0] != '"') || (str[l-1] != '"'))
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str = "\"" + str + "\"";
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}
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// Utility function, removes quotes around a string
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void delQuotes(String& str)
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{
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str.trimBlanks();
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int l = str.length();
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if ((l >= 2) && (str[0] == '"') && (str[l-1] == '"')) {
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str = str.substr(1,l-2);
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str.trimBlanks();
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}
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}
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// Utility function, puts quotes around a string
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String quote(const String& str)
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{
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String tmp(str);
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addQuotes(tmp);
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return tmp;
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}
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// Utility function to find a separator not in "quotes" or inside <uri>
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int findSep(const char* str, char sep, int offs)
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{
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if (!(str && sep))
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return -1;
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str += offs;
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bool inQ = false;
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bool inU = false;
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char c;
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for (; (c = *str++) ; offs++) {
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if (inQ) {
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if (c == '"')
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inQ = false;
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continue;
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}
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if (inU) {
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if (c == '>')
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inU = false;
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continue;
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}
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if (c == sep)
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return offs;
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switch (c) {
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case '"':
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inQ = true;
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break;
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case '<':
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inU = true;
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break;
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}
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}
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return -1;
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}
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}
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/* vi: set ts=8 sw=4 sts=4 noet: */
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