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101 lines
2.7 KiB
C++
101 lines
2.7 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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*
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* This 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 software 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 software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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#ifndef __RFB_HOSTNAME_H__
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#define __RFB_HOSTNAME_H__
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#include <assert.h>
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#include <stdlib.h>
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#include <rdr/Exception.h>
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#include <rfb/util.h>
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namespace rfb {
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static void getHostAndPort(const char* hi, char** host, int* port, int basePort=5900) {
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const char* hostStart;
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const char* hostEnd;
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const char* portStart;
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if (hi == NULL)
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throw rdr::Exception("NULL host specified");
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assert(host);
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assert(port);
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if (hi[0] == '[') {
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hostStart = &hi[1];
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hostEnd = strchr(hostStart, ']');
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if (hostEnd == NULL)
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throw rdr::Exception("unmatched [ in host");
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portStart = hostEnd + 1;
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if (*portStart == '\0')
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portStart = NULL;
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} else {
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hostStart = &hi[0];
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hostEnd = strrchr(hostStart, ':');
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if (hostEnd == NULL) {
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hostEnd = hostStart + strlen(hostStart);
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portStart = NULL;
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} else {
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if ((hostEnd > hostStart) && (hostEnd[-1] == ':'))
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hostEnd--;
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portStart = strchr(hostStart, ':');
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if (portStart != hostEnd) {
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// We found more : in the host. This is probably an IPv6 address
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hostEnd = hostStart + strlen(hostStart);
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portStart = NULL;
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}
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}
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}
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if (hostStart == hostEnd)
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*host = strDup("localhost");
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else {
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size_t len;
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len = hostEnd - hostStart + 1;
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*host = new char[len];
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strncpy(*host, hostStart, len-1);
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(*host)[len-1] = '\0';
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}
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if (portStart == NULL)
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*port = basePort;
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else {
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char* end;
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if (portStart[0] != ':')
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throw rdr::Exception("invalid port specified");
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if (portStart[1] != ':')
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*port = strtol(portStart + 1, &end, 10);
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else
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*port = strtol(portStart + 2, &end, 10);
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if (*end != '\0')
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throw rdr::Exception("invalid port specified");
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if ((portStart[1] != ':') && (*port < 100))
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*port += basePort;
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}
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}
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};
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#endif // __RFB_HOSTNAME_H__
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