src/jdk.incubator.jpackage/linux/native/libapplauncher/LinuxPlatform.cpp
branchJDK-8200758-branch
changeset 58994 b09ba68c6a19
parent 58302 718bd56695b3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.incubator.jpackage/linux/native/libapplauncher/LinuxPlatform.cpp	Fri Nov 08 14:53:03 2019 -0500
@@ -0,0 +1,1080 @@
+/*
+ * Copyright (c) 2014, 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include "Platform.h"
+
+#include "JavaVirtualMachine.h"
+#include "LinuxPlatform.h"
+#include "PlatformString.h"
+#include "IniFile.h"
+#include "Helpers.h"
+#include "FilePath.h"
+
+#include <stdlib.h>
+#include <pwd.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <limits.h>
+#include <signal.h>
+
+#define LINUX_JPACKAGE_TMP_DIR "/.java/jpackage/tmp"
+
+TString GetEnv(const TString &name) {
+    TString result;
+
+    char *value = ::getenv((TCHAR*) name.c_str());
+
+    if (value != NULL) {
+        result = value;
+    }
+
+    return result;
+}
+
+LinuxPlatform::LinuxPlatform(void) : Platform(),
+PosixPlatform() {
+    FMainThread = pthread_self();
+}
+
+LinuxPlatform::~LinuxPlatform(void) {
+}
+
+TString LinuxPlatform::GetPackageAppDirectory() {
+    return FilePath::IncludeTrailingSeparator(
+            GetPackageRootDirectory()) + _T("lib/app");
+}
+
+TString LinuxPlatform::GetAppName() {
+    TString result = GetModuleFileName();
+    result = FilePath::ExtractFileName(result);
+    return result;
+}
+
+TString LinuxPlatform::GetPackageLauncherDirectory() {
+    return FilePath::IncludeTrailingSeparator(
+            GetPackageRootDirectory()) + _T("bin");
+}
+
+TString LinuxPlatform::GetPackageRuntimeBinDirectory() {
+    return FilePath::IncludeTrailingSeparator(GetPackageRootDirectory())
+            + _T("runtime/bin");
+}
+
+void LinuxPlatform::ShowMessage(TString title, TString description) {
+    printf("%s %s\n", PlatformString(title).toPlatformString(),
+            PlatformString(description).toPlatformString());
+    fflush(stdout);
+}
+
+void LinuxPlatform::ShowMessage(TString description) {
+    TString appname = GetModuleFileName();
+    appname = FilePath::ExtractFileName(appname);
+    ShowMessage(PlatformString(appname).toPlatformString(),
+            PlatformString(description).toPlatformString());
+}
+
+TCHAR* LinuxPlatform::ConvertStringToFileSystemString(TCHAR* Source,
+        bool &release) {
+    // Not Implemented.
+    return NULL;
+}
+
+TCHAR* LinuxPlatform::ConvertFileSystemStringToString(TCHAR* Source,
+        bool &release) {
+    // Not Implemented.
+    return NULL;
+}
+
+TString LinuxPlatform::GetModuleFileName() {
+    ssize_t len = 0;
+    TString result;
+    DynamicBuffer<TCHAR> buffer(MAX_PATH);
+    if (buffer.GetData() == NULL) {
+        return result;
+    }
+
+    if ((len = readlink("/proc/self/exe", buffer.GetData(),
+            MAX_PATH - 1)) != -1) {
+        buffer[len] = '\0';
+        result = buffer.GetData();
+    }
+
+    return result;
+}
+
+TString LinuxPlatform::GetPackageRootDirectory() {
+    TString result;
+    TString filename = GetModuleFileName();
+    TString binPath = FilePath::ExtractFilePath(filename);
+
+    size_t slash = binPath.find_last_of(TRAILING_PATHSEPARATOR);
+    if (slash != TString::npos) {
+        result = binPath.substr(0, slash);
+    }
+
+    return result;
+}
+
+TString LinuxPlatform::GetAppDataDirectory() {
+    TString result;
+    TString home = GetEnv(_T("HOME"));
+
+    if (home.empty() == false) {
+        result += FilePath::IncludeTrailingSeparator(home) + _T(".local");
+    }
+
+    return result;
+}
+
+ISectionalPropertyContainer* LinuxPlatform::GetConfigFile(TString FileName) {
+    IniFile *result = new IniFile();
+    if (result == NULL) {
+        return NULL;
+    }
+
+    result->LoadFromFile(FileName);
+
+    return result;
+}
+
+TString LinuxPlatform::GetBundledJavaLibraryFileName(TString RuntimePath) {
+    TString result = FilePath::IncludeTrailingSeparator(RuntimePath) +
+            "lib/libjli.so";
+
+    if (FilePath::FileExists(result) == false) {
+        result = FilePath::IncludeTrailingSeparator(RuntimePath) +
+                "lib/jli/libjli.so";
+        if (FilePath::FileExists(result) == false) {
+            printf("Cannot find libjli.so!");
+        }
+    }
+
+    return result;
+}
+
+bool LinuxPlatform::IsMainThread() {
+    bool result = (FMainThread == pthread_self());
+    return result;
+}
+
+TString LinuxPlatform::getTmpDirString() {
+    return TString(LINUX_JPACKAGE_TMP_DIR);
+}
+
+TPlatformNumber LinuxPlatform::GetMemorySize() {
+    long pages = sysconf(_SC_PHYS_PAGES);
+    long page_size = sysconf(_SC_PAGE_SIZE);
+    TPlatformNumber result = pages * page_size;
+    result = result / 1048576; // Convert from bytes to megabytes.
+    return result;
+}
+
+void PosixProcess::Cleanup() {
+    if (FOutputHandle != 0) {
+        close(FOutputHandle);
+        FOutputHandle = 0;
+    }
+
+    if (FInputHandle != 0) {
+        close(FInputHandle);
+        FInputHandle = 0;
+    }
+}
+
+#define PIPE_READ 0
+#define PIPE_WRITE 1
+
+bool PosixProcess::Execute(const TString Application,
+        const std::vector<TString> Arguments, bool AWait) {
+    bool result = false;
+
+    if (FRunning == false) {
+        FRunning = true;
+
+        int handles[2];
+
+        if (pipe(handles) == -1) {
+            return false;
+        }
+
+        struct sigaction sa;
+        sa.sa_handler = SIG_IGN;
+        sigemptyset(&sa.sa_mask);
+        sa.sa_flags = 0;
+
+        FChildPID = fork();
+
+        // PID returned by vfork is 0 for the child process and the
+        // PID of the child process for the parent.
+        if (FChildPID == -1) {
+            // Error
+            TString message = PlatformString::Format(
+                    _T("Error: Unable to create process %s"),
+                    Application.data());
+            throw Exception(message);
+        } else if (FChildPID == 0) {
+            Cleanup();
+            TString command = Application;
+
+            for (std::vector<TString>::const_iterator iterator =
+                    Arguments.begin(); iterator != Arguments.end();
+                    iterator++) {
+                command += TString(_T(" ")) + *iterator;
+            }
+#ifdef DEBUG
+            printf("%s\n", command.data());
+#endif // DEBUG
+
+            dup2(handles[PIPE_READ], STDIN_FILENO);
+            dup2(handles[PIPE_WRITE], STDOUT_FILENO);
+
+            close(handles[PIPE_READ]);
+            close(handles[PIPE_WRITE]);
+
+            execl("/bin/sh", "sh", "-c", command.data(), (char *) 0);
+
+            _exit(127);
+        } else {
+            FOutputHandle = handles[PIPE_READ];
+            FInputHandle = handles[PIPE_WRITE];
+
+            if (AWait == true) {
+                ReadOutput();
+                Wait();
+                Cleanup();
+                FRunning = false;
+                result = true;
+            } else {
+                result = true;
+            }
+        }
+    }
+
+    return result;
+}
+
+
+//----------------------------------------------------------------------------
+
+#ifndef __UNIX_JPACKAGE_PLATFORM__
+#define __UNIX_JPACKAGE_PLATFORM__
+
+/** Provide an abstraction for difference in the platform APIs,
+     e.g. string manipulation functions, etc. */
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include <sys/stat.h>
+
+#define TCHAR char
+
+#define _T(x) x
+
+#define JPACKAGE_MULTIBYTE_SNPRINTF snprintf
+
+#define JPACKAGE_SNPRINTF(buffer, sizeOfBuffer, count, format, ...) \
+    snprintf((buffer), (count), (format), __VA_ARGS__)
+
+#define JPACKAGE_PRINTF(format, ...) \
+    printf((format), ##__VA_ARGS__)
+
+#define JPACKAGE_FPRINTF(dest, format, ...) \
+    fprintf((dest), (format), __VA_ARGS__)
+
+#define JPACKAGE_SSCANF(buf, format, ...) \
+    sscanf((buf), (format), __VA_ARGS__)
+
+#define JPACKAGE_STRDUP(strSource) \
+    strdup((strSource))
+
+//return "error code" (like on Windows)
+
+static int JPACKAGE_STRNCPY(char *strDest, size_t numberOfElements,
+        const char *strSource, size_t count) {
+    char *s = strncpy(strDest, strSource, count);
+    // Duplicate behavior of the Windows' _tcsncpy_s() by adding a NULL
+    // terminator at the end of the string.
+    if (count < numberOfElements) {
+        s[count] = '\0';
+    } else {
+        s[numberOfElements - 1] = '\0';
+    }
+    return (s == strDest) ? 0 : 1;
+}
+
+#define JPACKAGE_STRICMP(x, y) \
+    strcasecmp((x), (y))
+
+#define JPACKAGE_STRNICMP(x, y, cnt) \
+    strncasecmp((x), (y), (cnt))
+
+#define JPACKAGE_STRNCMP(x, y, cnt) \
+    strncmp((x), (y), (cnt))
+
+#define JPACKAGE_STRLEN(x) \
+    strlen((x))
+
+#define JPACKAGE_STRSTR(x, y) \
+    strstr((x), (y))
+
+#define JPACKAGE_STRCHR(x, y) \
+    strchr((x), (y))
+
+#define JPACKAGE_STRRCHR(x, y) \
+    strrchr((x), (y))
+
+#define JPACKAGE_STRPBRK(x, y) \
+    strpbrk((x), (y))
+
+#define JPACKAGE_GETENV(x) \
+    getenv((x))
+
+#define JPACKAGE_PUTENV(x) \
+    putenv((x))
+
+#define JPACKAGE_STRCMP(x, y) \
+    strcmp((x), (y))
+
+#define JPACKAGE_STRCPY(x, y) \
+    strcpy((x), (y))
+
+#define JPACKAGE_STRCAT(x, y) \
+    strcat((x), (y))
+
+#define JPACKAGE_ATOI(x) \
+    atoi((x))
+
+#define JPACKAGE_FOPEN(x, y) \
+    fopen((x), (y))
+
+#define JPACKAGE_FGETS(x, y, z) \
+    fgets((x), (y), (z))
+
+#define JPACKAGE_REMOVE(x) \
+    remove((x))
+
+#define JPACKAGE_SPAWNV(mode, cmd, args) \
+    spawnv((mode), (cmd), (args))
+
+#define JPACKAGE_ISDIGIT(ch) isdigit(ch)
+
+// for non-unicode, just return the input string for
+// the following 2 conversions
+#define JPACKAGE_NEW_MULTIBYTE(message) message
+
+#define JPACKAGE_NEW_FROM_MULTIBYTE(message) message
+
+// for non-unicode, no-op for the relase operation
+// since there is no memory allocated for the
+// string conversions
+#define JPACKAGE_RELEASE_MULTIBYTE(tmpMBCS)
+
+#define JPACKAGE_RELEASE_FROM_MULTIBYTE(tmpMBCS)
+
+// The size will be used for converting from 1 byte to 1 byte encoding.
+// Ensure have space for zero-terminator.
+#define JPACKAGE_GET_SIZE_FOR_ENCODING(message, theLength) (theLength + 1)
+
+#endif
+#define xmlTagType    0
+#define xmlPCDataType 1
+
+typedef struct _xmlNode XMLNode;
+typedef struct _xmlAttribute XMLAttribute;
+
+struct _xmlNode {
+    int _type; // Type of node: tag, pcdata, cdate
+    TCHAR* _name; // Contents of node
+    XMLNode* _next; // Next node at same level
+    XMLNode* _sub; // First sub-node
+    XMLAttribute* _attributes; // List of attributes
+};
+
+struct _xmlAttribute {
+    TCHAR* _name; // Name of attribute
+    TCHAR* _value; // Value of attribute
+    XMLAttribute* _next; // Next attribute for this tag
+};
+
+// Public interface
+static void RemoveNonAsciiUTF8FromBuffer(char *buf);
+XMLNode* ParseXMLDocument(TCHAR* buf);
+void FreeXMLDocument(XMLNode* root);
+
+// Utility methods for parsing document
+XMLNode* FindXMLChild(XMLNode* root, const TCHAR* name);
+TCHAR* FindXMLAttribute(XMLAttribute* attr, const TCHAR* name);
+
+// Debugging
+void PrintXMLDocument(XMLNode* node, int indt);
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <setjmp.h>
+#include <stdlib.h>
+#include <wctype.h>
+
+#define JWS_assert(s, msg)      \
+    if (!(s)) { Abort(msg); }
+
+
+// Internal declarations
+static XMLNode* ParseXMLElement(void);
+static XMLAttribute* ParseXMLAttribute(void);
+static TCHAR* SkipWhiteSpace(TCHAR *p);
+static TCHAR* SkipXMLName(TCHAR *p);
+static TCHAR* SkipXMLComment(TCHAR *p);
+static TCHAR* SkipXMLDocType(TCHAR *p);
+static TCHAR* SkipXMLProlog(TCHAR *p);
+static TCHAR* SkipPCData(TCHAR *p);
+static int IsPCData(TCHAR *p);
+static void ConvertBuiltInEntities(TCHAR* p);
+static void SetToken(int type, TCHAR* start, TCHAR* end);
+static void GetNextToken(void);
+static XMLNode* CreateXMLNode(int type, TCHAR* name);
+static XMLAttribute* CreateXMLAttribute(TCHAR *name, TCHAR* value);
+static XMLNode* ParseXMLElement(void);
+static XMLAttribute* ParseXMLAttribute(void);
+static void FreeXMLAttribute(XMLAttribute* attr);
+static void PrintXMLAttributes(XMLAttribute* attr);
+static void indent(int indt);
+
+static jmp_buf jmpbuf;
+static XMLNode* root_node = NULL;
+
+/** definition of error codes for setjmp/longjmp,
+ *  that can be handled in ParseXMLDocument()
+ */
+#define JMP_NO_ERROR     0
+#define JMP_OUT_OF_RANGE 1
+
+#define NEXT_CHAR(p) { \
+    if (*p != 0) { \
+        p++; \
+    } else { \
+        longjmp(jmpbuf, JMP_OUT_OF_RANGE); \
+    } \
+}
+#define NEXT_CHAR_OR_BREAK(p) { \
+    if (*p != 0) { \
+        p++; \
+    } else { \
+        break; \
+    } \
+}
+#define NEXT_CHAR_OR_RETURN(p) { \
+    if (*p != 0) { \
+        p++; \
+    } else { \
+        return; \
+    } \
+}
+#define SKIP_CHARS(p,n) { \
+    int i; \
+    for (i = 0; i < (n); i++) { \
+        if (*p != 0) { \
+            p++; \
+        } else { \
+           longjmp(jmpbuf, JMP_OUT_OF_RANGE); \
+        } \
+    } \
+}
+#define SKIP_CHARS_OR_BREAK(p,n) { \
+    int i; \
+    for (i = 0; i < (n); i++) { \
+        if (*p != 0) { \
+            p++; \
+        } else { \
+            break; \
+        } \
+    } \
+    if (i < (n)) { \
+        break; \
+    } \
+}
+
+/** Iterates through the null-terminated buffer (i.e., C string) and
+ *  replaces all UTF-8 encoded character >255 with 255
+ *
+ *  UTF-8 encoding:
+ *
+ *   Range A:  0x0000 - 0x007F
+ *                               0 | bits 0 - 7
+ *   Range B : 0x0080 - 0x07FF  :
+ *                               110 | bits 6 - 10
+ *                               10  | bits 0 - 5
+ *   Range C : 0x0800 - 0xFFFF  :
+ *                               1110 | bits 12-15
+ *                               10   | bits  6-11
+ *                               10   | bits  0-5
+ */
+static void RemoveNonAsciiUTF8FromBuffer(char *buf) {
+    char* p;
+    char* q;
+    char c;
+    p = q = buf;
+    // We are not using NEXT_CHAR() to check if *q is NULL, as q is output
+    // location and offset for q is smaller than for p.
+    while (*p != '\0') {
+        c = *p;
+        if ((c & 0x80) == 0) {
+            /* Range A */
+            *q++ = *p;
+            NEXT_CHAR(p);
+        } else if ((c & 0xE0) == 0xC0) {
+            /* Range B */
+            *q++ = (char) 0xFF;
+            NEXT_CHAR(p);
+            NEXT_CHAR_OR_BREAK(p);
+        } else {
+            /* Range C */
+            *q++ = (char) 0xFF;
+            NEXT_CHAR(p);
+            SKIP_CHARS_OR_BREAK(p, 2);
+        }
+    }
+    /* Null terminate string */
+    *q = '\0';
+}
+
+static TCHAR* SkipWhiteSpace(TCHAR *p) {
+    if (p != NULL) {
+        while (iswspace(*p))
+            NEXT_CHAR_OR_BREAK(p);
+    }
+    return p;
+}
+
+static TCHAR* SkipXMLName(TCHAR *p) {
+    TCHAR c = *p;
+    /* Check if start of token */
+    if (('a' <= c && c <= 'z') ||
+            ('A' <= c && c <= 'Z') ||
+            c == '_' || c == ':') {
+
+        while (('a' <= c && c <= 'z') ||
+                ('A' <= c && c <= 'Z') ||
+                ('0' <= c && c <= '9') ||
+                c == '_' || c == ':' || c == '.' || c == '-') {
+            NEXT_CHAR(p);
+            c = *p;
+            if (c == '\0') break;
+        }
+    }
+    return p;
+}
+
+static TCHAR* SkipXMLComment(TCHAR *p) {
+    if (p != NULL) {
+        if (JPACKAGE_STRNCMP(p, _T("<!--"), 4) == 0) {
+            SKIP_CHARS(p, 4);
+            do {
+                if (JPACKAGE_STRNCMP(p, _T("-->"), 3) == 0) {
+                    SKIP_CHARS(p, 3);
+                    return p;
+                }
+                NEXT_CHAR(p);
+            } while (*p != '\0');
+        }
+    }
+    return p;
+}
+
+static TCHAR* SkipXMLDocType(TCHAR *p) {
+    if (p != NULL) {
+        if (JPACKAGE_STRNCMP(p, _T("<!"), 2) == 0) {
+            SKIP_CHARS(p, 2);
+            while (*p != '\0') {
+                if (*p == '>') {
+                    NEXT_CHAR(p);
+                    return p;
+                }
+                NEXT_CHAR(p);
+            }
+        }
+    }
+    return p;
+}
+
+static TCHAR* SkipXMLProlog(TCHAR *p) {
+    if (p != NULL) {
+        if (JPACKAGE_STRNCMP(p, _T("<?"), 2) == 0) {
+            SKIP_CHARS(p, 2);
+            do {
+                if (JPACKAGE_STRNCMP(p, _T("?>"), 2) == 0) {
+                    SKIP_CHARS(p, 2);
+                    return p;
+                }
+                NEXT_CHAR(p);
+            } while (*p != '\0');
+        }
+    }
+    return p;
+}
+
+/* Search for the built-in XML entities:
+ * &amp; (&), &lt; (<), &gt; (>), &apos; ('), and &quote(")
+ * and convert them to a real TCHARacter
+ */
+static void ConvertBuiltInEntities(TCHAR* p) {
+    TCHAR* q;
+    q = p;
+    // We are not using NEXT_CHAR() to check if *q is NULL,
+    // as q is output location and offset for q is smaller than for p.
+    while (*p) {
+        if (IsPCData(p)) {
+            /* dont convert &xxx values within PData */
+            TCHAR *end;
+            end = SkipPCData(p);
+            while (p < end) {
+                *q++ = *p;
+                NEXT_CHAR(p);
+            }
+        } else {
+            if (JPACKAGE_STRNCMP(p, _T("&amp;"), 5) == 0) {
+                *q++ = '&';
+                SKIP_CHARS(p, 5);
+            } else if (JPACKAGE_STRNCMP(p, _T("&lt;"), 4) == 0) {
+                *q = '<';
+                SKIP_CHARS(p, 4);
+            } else if (JPACKAGE_STRNCMP(p, _T("&gt;"), 4) == 0) {
+                *q = '>';
+                SKIP_CHARS(p, 4);
+            } else if (JPACKAGE_STRNCMP(p, _T("&apos;"), 6) == 0) {
+                *q = '\'';
+                SKIP_CHARS(p, 6);
+            } else if (JPACKAGE_STRNCMP(p, _T("&quote;"), 7) == 0) {
+                *q = '\"';
+                SKIP_CHARS(p, 7);
+            } else {
+                *q++ = *p;
+                NEXT_CHAR(p);
+            }
+        }
+    }
+    *q = '\0';
+}
+
+/* ------------------------------------------------------------- */
+/* XML tokenizer */
+
+#define TOKEN_UNKNOWN             0
+#define TOKEN_BEGIN_TAG           1  /* <tag */
+#define TOKEN_END_TAG             2  /* </tag */
+#define TOKEN_CLOSE_BRACKET       3  /* >  */
+#define TOKEN_EMPTY_CLOSE_BRACKET 4  /* /> */
+#define TOKEN_PCDATA              5  /* pcdata */
+#define TOKEN_CDATA               6  /* cdata */
+#define TOKEN_EOF                 7
+
+static TCHAR* CurPos = NULL;
+static TCHAR* CurTokenName = NULL;
+static int CurTokenType;
+static int MaxTokenSize = -1;
+
+/* Copy token from buffer to Token variable */
+static void SetToken(int type, TCHAR* start, TCHAR* end) {
+    int len = end - start;
+    if (len > MaxTokenSize) {
+        if (CurTokenName != NULL) free(CurTokenName);
+        CurTokenName = (TCHAR *) malloc((len + 1) * sizeof (TCHAR));
+        if (CurTokenName == NULL) {
+            return;
+        }
+        MaxTokenSize = len;
+    }
+
+    CurTokenType = type;
+    JPACKAGE_STRNCPY(CurTokenName, len + 1, start, len);
+    CurTokenName[len] = '\0';
+}
+
+/* Skip XML comments, doctypes, and prolog tags */
+static TCHAR* SkipFilling(void) {
+    TCHAR *q = CurPos;
+
+    /* Skip white space and comment sections */
+    do {
+        q = CurPos;
+        CurPos = SkipWhiteSpace(CurPos);
+        CurPos = SkipXMLComment(CurPos); /* Must be called befor DocTypes */
+        CurPos = SkipXMLDocType(CurPos); /* <! ... > directives */
+        CurPos = SkipXMLProlog(CurPos); /* <? ... ?> directives */
+    } while (CurPos != q);
+
+    return CurPos;
+}
+
+/* Parses next token and initializes the global token variables above
+   The tokennizer automatically skips comments (<!-- comment -->) and
+   <! ... > directives.
+ */
+static void GetNextToken(void) {
+    TCHAR *p, *q;
+
+    /* Skip white space and comment sections */
+    p = SkipFilling();
+
+    if (p == NULL || *p == '\0') {
+        CurTokenType = TOKEN_EOF;
+        return;
+    } else if (p[0] == '<' && p[1] == '/') {
+        /* TOKEN_END_TAG */
+        q = SkipXMLName(p + 2);
+        SetToken(TOKEN_END_TAG, p + 2, q);
+        p = q;
+    } else if (*p == '<') {
+        /* TOKEN_BEGIN_TAG */
+        q = SkipXMLName(p + 1);
+        SetToken(TOKEN_BEGIN_TAG, p + 1, q);
+        p = q;
+    } else if (p[0] == '>') {
+        CurTokenType = TOKEN_CLOSE_BRACKET;
+        NEXT_CHAR(p);
+    } else if (p[0] == '/' && p[1] == '>') {
+        CurTokenType = TOKEN_EMPTY_CLOSE_BRACKET;
+        SKIP_CHARS(p, 2);
+    } else {
+        /* Search for end of data */
+        q = p + 1;
+        while (*q && *q != '<') {
+            if (IsPCData(q)) {
+                q = SkipPCData(q);
+            } else {
+                NEXT_CHAR(q);
+            }
+        }
+        SetToken(TOKEN_PCDATA, p, q);
+        /* Convert all entities inside token */
+        ConvertBuiltInEntities(CurTokenName);
+        p = q;
+    }
+    /* Advance pointer to beginning of next token */
+    CurPos = p;
+}
+
+static XMLNode* CreateXMLNode(int type, TCHAR* name) {
+    XMLNode* node;
+    node = (XMLNode*) malloc(sizeof (XMLNode));
+    if (node == NULL) {
+        return NULL;
+    }
+    node->_type = type;
+    node->_name = name;
+    node->_next = NULL;
+    node->_sub = NULL;
+    node->_attributes = NULL;
+    return node;
+}
+
+static XMLAttribute* CreateXMLAttribute(TCHAR *name, TCHAR* value) {
+    XMLAttribute* attr;
+    attr = (XMLAttribute*) malloc(sizeof (XMLAttribute));
+    if (attr == NULL) {
+        return NULL;
+    }
+    attr->_name = name;
+    attr->_value = value;
+    attr->_next = NULL;
+    return attr;
+}
+
+XMLNode* ParseXMLDocument(TCHAR* buf) {
+    XMLNode* root;
+    int err_code = setjmp(jmpbuf);
+    switch (err_code) {
+        case JMP_NO_ERROR:
+#ifndef _UNICODE
+            /* Remove UTF-8 encoding from buffer */
+            RemoveNonAsciiUTF8FromBuffer(buf);
+#endif
+
+            /* Get first Token */
+            CurPos = buf;
+            GetNextToken();
+
+            /* Parse document*/
+            root = ParseXMLElement();
+            break;
+        case JMP_OUT_OF_RANGE:
+            /* cleanup: */
+            if (root_node != NULL) {
+                FreeXMLDocument(root_node);
+                root_node = NULL;
+            }
+            if (CurTokenName != NULL) free(CurTokenName);
+            fprintf(stderr, "Error during parsing jnlp file...\n");
+            exit(-1);
+            break;
+        default:
+            root = NULL;
+            break;
+    }
+
+    return root;
+}
+
+static XMLNode* ParseXMLElement(void) {
+    XMLNode* node = NULL;
+    XMLNode* subnode = NULL;
+    XMLNode* nextnode = NULL;
+    XMLAttribute* attr = NULL;
+
+    if (CurTokenType == TOKEN_BEGIN_TAG) {
+
+        /* Create node for new element tag */
+        node = CreateXMLNode(xmlTagType, JPACKAGE_STRDUP(CurTokenName));
+        /* We need to save root node pointer to be able to cleanup
+           if an error happens during parsing */
+        if (!root_node) {
+            root_node = node;
+        }
+        /* Parse attributes. This section eats a all input until
+           EOF, a > or a /> */
+        attr = ParseXMLAttribute();
+        while (attr != NULL) {
+            attr->_next = node->_attributes;
+            node->_attributes = attr;
+            attr = ParseXMLAttribute();
+        }
+
+        /* This will eihter be a TOKEN_EOF, TOKEN_CLOSE_BRACKET, or a
+         * TOKEN_EMPTY_CLOSE_BRACKET */
+        GetNextToken();
+
+        if (CurTokenType == TOKEN_EMPTY_CLOSE_BRACKET) {
+            GetNextToken();
+            /* We are done with the sublevel - fall through to continue */
+            /* parsing tags at the same level */
+        } else if (CurTokenType == TOKEN_CLOSE_BRACKET) {
+            GetNextToken();
+
+            /* Parse until end tag if found */
+            node->_sub = ParseXMLElement();
+
+            if (CurTokenType == TOKEN_END_TAG) {
+                /* Find closing bracket '>' for end tag */
+                do {
+                    GetNextToken();
+                } while (CurTokenType != TOKEN_EOF &&
+                        CurTokenType != TOKEN_CLOSE_BRACKET);
+                GetNextToken();
+            }
+        }
+
+        /* Continue parsing rest on same level */
+        if (CurTokenType != TOKEN_EOF) {
+            /* Parse rest of stream at same level */
+            node->_next = ParseXMLElement();
+        }
+        return node;
+
+    } else if (CurTokenType == TOKEN_PCDATA) {
+        /* Create node for pcdata */
+        node = CreateXMLNode(xmlPCDataType, JPACKAGE_STRDUP(CurTokenName));
+        /* We need to save root node pointer to be able to cleanup
+           if an error happens during parsing */
+        if (!root_node) {
+            root_node = node;
+        }
+        GetNextToken();
+        return node;
+    }
+
+    /* Something went wrong. */
+    return NULL;
+}
+
+/* Parses an XML attribute. */
+static XMLAttribute* ParseXMLAttribute(void) {
+    TCHAR* q = NULL;
+    TCHAR* name = NULL;
+    TCHAR* PrevPos = NULL;
+
+    do {
+        /* We need to check this condition to avoid endless loop
+           in case if an error happend during parsing. */
+        if (PrevPos == CurPos) {
+            if (name != NULL) {
+                free(name);
+                name = NULL;
+            }
+
+            return NULL;
+        }
+
+        PrevPos = CurPos;
+
+        /* Skip whitespace etc. */
+        SkipFilling();
+
+        /* Check if we are done witht this attribute section */
+        if (CurPos[0] == '\0' ||
+                CurPos[0] == '>' ||
+                (CurPos[0] == '/' && CurPos[1] == '>')) {
+
+            if (name != NULL) {
+                free(name);
+                name = NULL;
+            }
+
+            return NULL;
+        }
+
+        /* Find end of name */
+        q = CurPos;
+        while (*q && !iswspace(*q) && *q != '=') NEXT_CHAR(q);
+
+        SetToken(TOKEN_UNKNOWN, CurPos, q);
+        if (name) {
+            free(name);
+            name = NULL;
+        }
+        name = JPACKAGE_STRDUP(CurTokenName);
+
+        /* Skip any whitespace */
+        CurPos = q;
+        CurPos = SkipFilling();
+
+        /* Next TCHARacter must be '=' for a valid attribute.
+           If it is not, this is really an error.
+           We ignore this, and just try to parse an attribute
+           out of the rest of the string.
+         */
+    } while (*CurPos != '=');
+
+    NEXT_CHAR(CurPos);
+    CurPos = SkipWhiteSpace(CurPos);
+    /* Parse CDATA part of attribute */
+    if ((*CurPos == '\"') || (*CurPos == '\'')) {
+        TCHAR quoteChar = *CurPos;
+        q = ++CurPos;
+        while (*q != '\0' && *q != quoteChar) NEXT_CHAR(q);
+        SetToken(TOKEN_CDATA, CurPos, q);
+        CurPos = q + 1;
+    } else {
+        q = CurPos;
+        while (*q != '\0' && !iswspace(*q)) NEXT_CHAR(q);
+        SetToken(TOKEN_CDATA, CurPos, q);
+        CurPos = q;
+    }
+
+    //Note: no need to free name and CurTokenName duplicate; they're assigned
+    // to an XMLAttribute structure in CreateXMLAttribute
+
+    return CreateXMLAttribute(name, JPACKAGE_STRDUP(CurTokenName));
+}
+
+void FreeXMLDocument(XMLNode* root) {
+    if (root == NULL) return;
+    FreeXMLDocument(root->_sub);
+    FreeXMLDocument(root->_next);
+    FreeXMLAttribute(root->_attributes);
+    free(root->_name);
+    free(root);
+}
+
+static void FreeXMLAttribute(XMLAttribute* attr) {
+    if (attr == NULL) return;
+    free(attr->_name);
+    free(attr->_value);
+    FreeXMLAttribute(attr->_next);
+    free(attr);
+}
+
+/* Find element at current level with a given name */
+XMLNode* FindXMLChild(XMLNode* root, const TCHAR* name) {
+    if (root == NULL) return NULL;
+
+    if (root->_type == xmlTagType && JPACKAGE_STRCMP(root->_name, name) == 0) {
+        return root;
+    }
+
+    return FindXMLChild(root->_next, name);
+}
+
+/* Search for an attribute with the given name and returns the contents.
+ * Returns NULL if attribute is not found
+ */
+TCHAR* FindXMLAttribute(XMLAttribute* attr, const TCHAR* name) {
+    if (attr == NULL) return NULL;
+    if (JPACKAGE_STRCMP(attr->_name, name) == 0) return attr->_value;
+    return FindXMLAttribute(attr->_next, name);
+}
+
+void PrintXMLDocument(XMLNode* node, int indt) {
+    if (node == NULL) return;
+
+    if (node->_type == xmlTagType) {
+        JPACKAGE_PRINTF(_T("\n"));
+        indent(indt);
+        JPACKAGE_PRINTF(_T("<%s"), node->_name);
+        PrintXMLAttributes(node->_attributes);
+        if (node->_sub == NULL) {
+            JPACKAGE_PRINTF(_T("/>\n"));
+        } else {
+            JPACKAGE_PRINTF(_T(">"));
+            PrintXMLDocument(node->_sub, indt + 1);
+            indent(indt);
+            JPACKAGE_PRINTF(_T("</%s>"), node->_name);
+        }
+    } else {
+        JPACKAGE_PRINTF(_T("%s"), node->_name);
+    }
+    PrintXMLDocument(node->_next, indt);
+}
+
+static void PrintXMLAttributes(XMLAttribute* attr) {
+    if (attr == NULL) return;
+
+    JPACKAGE_PRINTF(_T(" %s=\"%s\""), attr->_name, attr->_value);
+    PrintXMLAttributes(attr->_next);
+}
+
+static void indent(int indt) {
+    int i;
+    for (i = 0; i < indt; i++) {
+        JPACKAGE_PRINTF(_T("  "));
+    }
+}
+
+const TCHAR *CDStart = _T("<![CDATA[");
+const TCHAR *CDEnd = _T("]]>");
+
+static TCHAR* SkipPCData(TCHAR *p) {
+    TCHAR *end = JPACKAGE_STRSTR(p, CDEnd);
+    if (end != NULL) {
+        return end + sizeof (CDEnd);
+    }
+    return (++p);
+}
+
+static int IsPCData(TCHAR *p) {
+    const int size = sizeof (CDStart);
+    return (JPACKAGE_STRNCMP(CDStart, p, size) == 0);
+}