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https://github.com/moparisthebest/davmail
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f69382ccc7
git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@2100 3d1905a2-6b24-0410-a738-b14d5a86fcbd
116 lines
3.2 KiB
C++
116 lines
3.2 KiB
C++
/*
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JSmooth: a VM wrapper toolkit for Windows
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Copyright (C) 2003-2007 Rodrigo Reyes <reyes@charabia.net>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "JVMRegistryLookup.h"
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struct jvmsorter_dec : public binary_function<const SunJVMLauncher&, const SunJVMLauncher&, bool>
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{
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bool operator()(const SunJVMLauncher& s1, const SunJVMLauncher& s2)
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{
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return s2 < s1;
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}
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};
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vector<SunJVMLauncher> JVMRegistryLookup::lookupJVM()
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{
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vector<SunJVMLauncher> res = JVMRegistryLookup::lookup(HKEY_LOCAL_MACHINE, "SOFTWARE\\JavaSoft\\Java Runtime Environment");
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vector<SunJVMLauncher> res2 = JVMRegistryLookup::lookup(HKEY_LOCAL_MACHINE, "SOFTWARE\\JavaSoft\\Java Development Kit");
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for (vector<SunJVMLauncher>::iterator i = res2.begin(); i != res2.end(); i++)
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{
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res.insert(res.end(), *i);
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}
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sort(res.begin(), res.end(), jvmsorter_dec() );
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return res;
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}
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vector<SunJVMLauncher> JVMRegistryLookup::lookup(HKEY key, const string& path)
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{
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vector<SunJVMLauncher> result;
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HKEY hKey;
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LONG error = ERROR_SUCCESS;
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LONG val = RegOpenKeyEx(key, path.c_str(), 0, KEY_READ, &hKey);
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unsigned long buffersize = 1024;
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char buffer[1024];
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for (int i=0; RegEnumKey(hKey, i, buffer, buffersize) == ERROR_SUCCESS; i++)
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{
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int v = i;
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HKEY version;
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int foundver = RegOpenKeyEx(hKey, buffer, 0, KEY_READ, &version);
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if (foundver == ERROR_SUCCESS)
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{
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std::string versionname(buffer);
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HKEY runtimelib;
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unsigned long datatype;
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std::string runtimelibstr = "";
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std::string javahomestr = "";
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unsigned char *b = (unsigned char*)buffer;
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buffersize = 1024;
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int foundlib = RegQueryValueEx(version, TEXT("RuntimeLib"),
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NULL,
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&datatype,
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b,
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&buffersize);
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if (foundlib == ERROR_SUCCESS)
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{
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runtimelibstr = buffer;
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}
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b = (unsigned char*)buffer;
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buffersize = 1024;
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int foundhome = RegQueryValueEx(version, TEXT("JavaHome"),
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NULL,
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&datatype,
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b,
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&buffersize);
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if (foundhome == ERROR_SUCCESS)
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{
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javahomestr = buffer;
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}
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if ((runtimelibstr.length()>0) || (javahomestr.length()>0))
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{
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SunJVMLauncher vm;
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vm.RuntimeLibPath = runtimelibstr;
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vm.JavaHome = javahomestr;
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vm.VmVersion = Version(versionname);
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result.push_back(vm);
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char buffer[244];
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sprintf(buffer, "V(%d)(%d)(%d)", vm.VmVersion.getMajor(), vm.VmVersion.getMinor(), vm.VmVersion.getSubMinor());
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DEBUG(std::string("JVM Lookup: found VM (") + buffer + ") in registry.");
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}
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}
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}
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return result;
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}
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