1 /* 2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #include "Windows.h" 27 #include "Utils.h" 28 29 #define BUFFER_SIZE 4096 30 31 wstring GetStringFromJString(JNIEnv *pEnv, jstring jstr) { 32 const jchar *pJChars = pEnv->GetStringChars(jstr, NULL); 33 if (pJChars == NULL) { 34 return wstring(L""); 35 } 36 37 wstring wstr(pJChars); 38 39 pEnv->ReleaseStringChars(jstr, pJChars); 40 41 return wstr; 42 } 43 44 jstring GetJStringFromString(JNIEnv *pEnv, const jchar *unicodeChars, jsize len) { 45 return pEnv->NewString(unicodeChars, len); 46 } 47 48 wstring GetLongPath(wstring path) { 49 wstring result(L""); 50 51 size_t len = path.length(); 52 if (len > 1) { 53 if (path.at(len - 1) == '\\') { 54 path.erase(len - 1); 55 } 56 } 57 58 TCHAR *pBuffer = new TCHAR[BUFFER_SIZE]; 59 if (pBuffer != NULL) { 60 DWORD dwResult = GetLongPathName(path.c_str(), pBuffer, BUFFER_SIZE); 61 if (dwResult > 0 && dwResult < BUFFER_SIZE) { 62 result = wstring(pBuffer); 63 } else { 64 delete [] pBuffer; 65 pBuffer = new TCHAR[dwResult]; 66 if (pBuffer != NULL) { 67 DWORD dwResult2 = GetLongPathName(path.c_str(), pBuffer, dwResult); 68 if (dwResult2 == (dwResult - 1)) { 69 result = wstring(pBuffer); 70 } 71 } 72 } 73 74 if (pBuffer != NULL) { 75 delete [] pBuffer; 76 } 77 } 78 79 return result; 80 }