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pjs/xpcom/glue/nsGREGlue.cpp

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corp.
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Sean Su <ssu@netscape.com>
* Benjamin Smedberg <benjamin@smedbergs.us>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsXPCOMGlue.h"
#include "nsINIParser.h"
#include "nsVersionComparator.h"
#include "nsXPCOMPrivate.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#ifdef XP_WIN32
# include <windows.h>
# include <mbstring.h>
# include <io.h>
# define snprintf _snprintf
# define R_OK 04
#elif defined(XP_OS2)
# define INCL_DOS
# include <os2.h>
#elif defined(XP_MACOSX)
# include <CoreFoundation/CoreFoundation.h>
# include <unistd.h>
# include <dirent.h>
#elif defined(XP_UNIX)
# include <unistd.h>
# include <sys/param.h>
# include <dirent.h>
#elif defined(XP_BEOS)
# include <FindDirectory.h>
# include <Path.h>
# include <unistd.h>
# include <sys/param.h>
# include <OS.h>
# include <image.h>
# include <dirent.h>
# include <FindDirectory.h>
#endif
#include <sys/stat.h>
/**
* Like strncat, appends a buffer to another buffer. This is where the
* similarity ends. Firstly, the "count" here is the total size of the buffer
* (not the number of chars to append. Secondly, the function returns PR_FALSE
* if the buffer is not long enough to hold the concatenated string.
*/
static PRBool safe_strncat(char *dest, const char *append, PRUint32 count)
{
char *end = dest + count - 1;
// skip to the end of dest
while (*dest)
++dest;
while (*append && dest < end) {
*dest = *append;
++dest, ++append;
}
*dest = '\0';
return *append == '\0';
}
#ifdef XP_WIN
static PRBool
CheckVersion(const PRUnichar* toCheck,
const GREVersionRange *versions,
PRUint32 versionsLength);
#endif
static PRBool
CheckVersion(const char* toCheck,
const GREVersionRange *versions,
PRUint32 versionsLength);
#if defined(XP_MACOSX)
static PRBool
GRE_FindGREFramework(const char* rootPath,
const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
char* buffer, PRUint32 buflen);
#elif defined(XP_UNIX) || defined(XP_BEOS)
static PRBool
GRE_GetPathFromConfigDir(const char* dirname,
const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
char* buffer, PRUint32 buflen);
static PRBool
GRE_GetPathFromConfigFile(const char* filename,
const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
char* buffer, PRUint32 buflen);
#elif defined(XP_WIN)
static PRBool
GRE_GetPathFromRegKey(HKEY aRegKey,
const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
PRUnichar* buffer, PRUint32 buflen);
#endif
nsresult
GRE_GetGREPathWithProperties(const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
char *aBuffer, PRUint32 aBufLen)
{
#ifdef TARGET_XPCOM_ABI
// append the ABI to the properties to match only binary
// compatible GREs
static const GREProperty kExtraProperty =
{ "abi", TARGET_XPCOM_ABI };
GREProperty *allProperties = new GREProperty[propertiesLength + 1];
if (!allProperties)
return NS_ERROR_OUT_OF_MEMORY;
for (PRUint32 i=0; i<propertiesLength; i++) {
allProperties[i].property = properties[i].property;
allProperties[i].value = properties[i].value;
}
allProperties[propertiesLength].property = kExtraProperty.property;
allProperties[propertiesLength].value = kExtraProperty.value;
PRUint32 allPropertiesLength = propertiesLength + 1;
#else
const GREProperty *allProperties = properties;
PRUint32 allPropertiesLength = propertiesLength;
#endif
// if GRE_HOME is in the environment, use that GRE
const char* env = getenv("GRE_HOME");
if (env && *env) {
char p[MAXPATHLEN];
snprintf(p, sizeof(p), "%s" XPCOM_FILE_PATH_SEPARATOR XPCOM_DLL, env);
p[sizeof(p) - 1] = '\0';
#if XP_UNIX
if (realpath(p, aBuffer))
return NS_OK;
#elif WINCE
if (p[0] != '\\')
{
unsigned short dir[MAX_PATH];
unsigned short path[MAX_PATH];
MultiByteToWideChar(CP_ACP, 0, p, -1, path, MAX_PATH);
_wfullpath(dir,path,MAX_PATH);
WideCharToMultiByte(CP_ACP, 0, dir, -1, aBuffer, MAX_PATH, NULL, NULL);
}
else {
strcpy(aBuffer, p);
}
return NS_OK;
#elif XP_WIN
if (_fullpath(aBuffer, p, aBufLen))
return NS_OK;
#elif XP_OS2
// realpath on OS/2 returns a unix-ized path, so re-native-ize
if (realpath(p, aBuffer)) {
for (char* ptr = strchr(aBuffer, '/'); ptr; ptr = strchr(ptr, '/'))
*ptr = '\\';
return NS_OK;
}
#elif XP_BEOS
BPath path;
status_t result;
result = path.SetTo(p,0,true);
if (result == B_OK)
{
sprintf(aBuffer, path.Path());
return NS_OK;
}
#else
// hope for the best
// xxxbsmedberg: other platforms should have a "make absolute" function
#endif
if (strlen(p) >= aBufLen)
return NS_ERROR_FILE_NAME_TOO_LONG;
strcpy(aBuffer, p);
return NS_OK;
}
// the Gecko bits that sit next to the application or in the LD_LIBRARY_PATH
env = getenv("USE_LOCAL_GRE");
if (env && *env) {
*aBuffer = nsnull;
return NS_OK;
}
#ifdef XP_MACOSX
aBuffer[0] = '\0';
// Check the bundle first, for <bundle>/Contents/Frameworks/XUL.framework/libxpcom.dylib
CFBundleRef appBundle = CFBundleGetMainBundle();
if (appBundle) {
CFURLRef fwurl = CFBundleCopyPrivateFrameworksURL(appBundle);
CFURLRef absfwurl = nsnull;
if (fwurl) {
absfwurl = CFURLCopyAbsoluteURL(fwurl);
CFRelease(fwurl);
}
if (absfwurl) {
CFURLRef xulurl =
CFURLCreateCopyAppendingPathComponent(NULL, absfwurl,
CFSTR(GRE_FRAMEWORK_NAME),
PR_TRUE);
if (xulurl) {
CFURLRef xpcomurl =
CFURLCreateCopyAppendingPathComponent(NULL, xulurl,
CFSTR("libxpcom.dylib"),
PR_FALSE);
if (xpcomurl) {
char tbuffer[MAXPATHLEN];
if (CFURLGetFileSystemRepresentation(xpcomurl, PR_TRUE,
(UInt8*) tbuffer,
sizeof(tbuffer)) &&
access(tbuffer, R_OK | X_OK) == 0) {
if (!realpath(tbuffer, aBuffer)) {
aBuffer[0] = '\0';
}
}
CFRelease(xpcomurl);
}
CFRelease(xulurl);
}
CFRelease(absfwurl);
}
}
if (aBuffer[0])
return NS_OK;
// Check ~/Library/Frameworks/XUL.framework/Versions/<version>/libxpcom.dylib
const char *home = getenv("HOME");
if (home && *home && GRE_FindGREFramework(home,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
// Check /Library/Frameworks/XUL.framework/Versions/<version>/libxpcom.dylib
if (GRE_FindGREFramework("",
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
#elif defined(XP_UNIX)
env = getenv("MOZ_GRE_CONF");
if (env && GRE_GetPathFromConfigFile(env,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
env = getenv("HOME");
if (env && *env) {
char buffer[MAXPATHLEN];
// Look in ~/.gre.config
snprintf(buffer, sizeof(buffer),
"%s" XPCOM_FILE_PATH_SEPARATOR GRE_CONF_NAME, env);
if (GRE_GetPathFromConfigFile(buffer,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
// Look in ~/.gre.d/*.conf
snprintf(buffer, sizeof(buffer),
"%s" XPCOM_FILE_PATH_SEPARATOR GRE_USER_CONF_DIR, env);
if (GRE_GetPathFromConfigDir(buffer,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
}
// Look for a global /etc/gre.conf file
if (GRE_GetPathFromConfigFile(GRE_CONF_PATH,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
// Look for a group of config files in /etc/gre.d/
if (GRE_GetPathFromConfigDir(GRE_CONF_DIR,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
#elif defined(XP_BEOS)
env = getenv("MOZ_GRE_CONF");
if (env && GRE_GetPathFromConfigFile(env,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
char p[MAXPATHLEN];
if (find_directory(B_USER_SETTINGS_DIRECTORY, 0, 0, p, MAXPATHLEN)) {
char buffer[MAXPATHLEN];
// Look in B_USER_SETTINGS_DIRECTORY/gre.config
snprintf(buffer, sizeof(buffer),
"%s" XPCOM_FILE_PATH_SEPARATOR GRE_CONF_NAME, p);
if (GRE_GetPathFromConfigFile(buffer,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
// Look in B_USER_SETTINGS_DIRECTORY/gre.d/*.conf
snprintf(buffer, sizeof(buffer),
"%s" XPCOM_FILE_PATH_SEPARATOR GRE_CONF_DIR, p);
if (GRE_GetPathFromConfigDir(buffer,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
}
// Hope Zeta OS and Haiku OS multiuser versions will respect BeBook,
// for BeOS R5 COMMON and USER are equal
if (find_directory(B_COMMON_SETTINGS_DIRECTORY, 0, 0, p, MAXPATHLEN)) {
char buffer[MAXPATHLEN];
// Look for a B_COMMON_SETTINGS_DIRECTORY/gre.conf file
snprintf(buffer, sizeof(buffer),
"%s" XPCOM_FILE_PATH_SEPARATOR GRE_CONF_PATH, p);
if (GRE_GetPathFromConfigFile(buffer,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
// Look for a group of config files in B_COMMON_SETTINGS_DIRECTORY/gre.d/
snprintf(buffer, sizeof(buffer),
"%s" XPCOM_FILE_PATH_SEPARATOR GRE_CONF_DIR, p);
if (GRE_GetPathFromConfigDir(buffer,
versions, versionsLength,
allProperties, allPropertiesLength,
aBuffer, aBufLen)) {
return NS_OK;
}
}
#elif defined(XP_WIN)
HKEY hRegKey = NULL;
// A couple of key points here:
// 1. Note the usage of the "Software\\mozilla.org\\GRE" subkey - this allows
// us to have multiple versions of GREs on the same machine by having
// subkeys such as 1.0, 1.1, 2.0 etc. under it.
// 2. In this sample below we're looking for the location of GRE version 1.2
// i.e. we're compatible with GRE 1.2 and we're trying to find it's install
// location.
//
// Please see http://www.mozilla.org/projects/embedding/GRE.html for
// more info.
//
if (::RegOpenKeyExW(HKEY_CURRENT_USER, GRE_WIN_REG_LOC, 0,
KEY_READ, &hRegKey) == ERROR_SUCCESS) {
PRBool ok = GRE_GetPathFromRegKey(hRegKey,
versions, versionsLength,
allProperties, allPropertiesLength,
(WCHAR*) NS_ConvertUTF8toUTF16(aBuffer).get(), aBufLen);
::RegCloseKey(hRegKey);
if (ok)
return NS_OK;
}
if (::RegOpenKeyExW(HKEY_LOCAL_MACHINE, GRE_WIN_REG_LOC, 0,
KEY_ENUMERATE_SUB_KEYS, &hRegKey) == ERROR_SUCCESS) {
PRBool ok = GRE_GetPathFromRegKey(hRegKey,
versions, versionsLength,
allProperties, allPropertiesLength,
(WCHAR*) NS_ConvertUTF8toUTF16(aBuffer).get(), aBufLen);
::RegCloseKey(hRegKey);
if (ok)
return NS_OK;
}
#endif
return NS_ERROR_FAILURE;
}
static PRBool
CheckVersion(const char* toCheck,
const GREVersionRange *versions,
PRUint32 versionsLength)
{
for (const GREVersionRange *versionsEnd = versions + versionsLength;
versions < versionsEnd;
++versions) {
PRInt32 c = NS_CompareVersions(toCheck, versions->lower);
if (c < 0)
continue;
if (!c && !versions->lowerInclusive)
continue;
c = NS_CompareVersions(toCheck, versions->upper);
if (c > 0)
continue;
if (!c && !versions->upperInclusive)
continue;
return PR_TRUE;
}
return PR_FALSE;
}
#ifdef XP_WIN
static PRBool
CheckVersion(const PRUnichar* toCheck,
const GREVersionRange *versions,
PRUint32 versionsLength)
{
for (const GREVersionRange *versionsEnd = versions + versionsLength;
versions < versionsEnd;
++versions) {
PRInt32 c = NS_CompareVersions(toCheck, NS_ConvertUTF8toUTF16(versions->lower).get());
if (c < 0)
continue;
if (!c && !versions->lowerInclusive)
continue;
c = NS_CompareVersions(toCheck, NS_ConvertUTF8toUTF16(versions->upper).get());
if (c > 0)
continue;
if (!c && !versions->upperInclusive)
continue;
return PR_TRUE;
}
return PR_FALSE;
}
#endif
#ifdef XP_MACOSX
PRBool
GRE_FindGREFramework(const char* rootPath,
const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
char* buffer, PRUint32 buflen)
{
PRBool found = PR_FALSE;
snprintf(buffer, buflen,
"%s/Library/Frameworks/" GRE_FRAMEWORK_NAME "/Versions", rootPath);
DIR *dir = opendir(buffer);
if (dir) {
struct dirent *entry;
while (!found && (entry = readdir(dir))) {
if (CheckVersion(entry->d_name, versions, versionsLength)) {
snprintf(buffer, buflen,
"%s/Library/Frameworks/" GRE_FRAMEWORK_NAME
"/Versions/%s/" XPCOM_DLL, rootPath, entry->d_name);
if (access(buffer, R_OK | X_OK) == 0)
found = PR_TRUE;
}
}
closedir(dir);
}
if (found)
return PR_TRUE;
buffer[0] = '\0';
return PR_FALSE;
}
#elif defined(XP_UNIX) || defined(XP_BEOS)
static PRBool IsConfFile(const char *filename)
{
const char *dot = strrchr(filename, '.');
return (dot && strcmp(dot, ".conf") == 0);
}
PRBool
GRE_GetPathFromConfigDir(const char* dirname,
const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
char* buffer, PRUint32 buflen)
{
// Open the directory provided and try to read any files in that
// directory that end with .conf. We look for an entry that might
// point to the GRE that we're interested in.
DIR *dir = opendir(dirname);
if (!dir)
return nsnull;
PRBool found = PR_FALSE;
struct dirent *entry;
while (!found && (entry = readdir(dir))) {
// Only look for files that end in .conf
// IsConfFile will skip "." and ".."
if (!IsConfFile(entry->d_name))
continue;
char fullPath[MAXPATHLEN];
snprintf(fullPath, sizeof(fullPath), "%s" XPCOM_FILE_PATH_SEPARATOR "%s",
dirname, entry->d_name);
found = GRE_GetPathFromConfigFile(fullPath,
versions, versionsLength,
properties, propertiesLength,
buffer, buflen);
}
closedir(dir);
return found;
}
#define READ_BUFFER_SIZE 1024
struct INIClosure
{
nsINIParser *parser;
const GREVersionRange *versions;
PRUint32 versionsLength;
const GREProperty *properties;
PRUint32 propertiesLength;
char *pathBuffer;
PRUint32 buflen;
PRBool found;
};
static PRBool
CheckINIHeader(const char *aHeader, void *aClosure)
{
nsresult rv;
INIClosure *c = reinterpret_cast<INIClosure *>(aClosure);
if (!CheckVersion(aHeader, c->versions, c->versionsLength))
return PR_TRUE;
const GREProperty *properties = c->properties;
const GREProperty *endProperties = properties + c->propertiesLength;
for (; properties < endProperties; ++properties) {
char buffer[MAXPATHLEN];
rv = c->parser->GetString(aHeader, properties->property,
buffer, sizeof(buffer));
if (NS_FAILED(rv))
return PR_TRUE;
if (strcmp(buffer, properties->value))
return PR_TRUE;
}
rv = c->parser->GetString(aHeader, "GRE_PATH", c->pathBuffer, c->buflen);
if (NS_FAILED(rv))
return PR_TRUE;
if (!safe_strncat(c->pathBuffer, "/" XPCOM_DLL, c->buflen) ||
access(c->pathBuffer, R_OK))
return PR_TRUE;
// We found a good GRE! Stop looking.
c->found = PR_TRUE;
return PR_FALSE;
}
PRBool
GRE_GetPathFromConfigFile(const char* filename,
const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
char* pathBuffer, PRUint32 buflen)
{
nsINIParser parser;
nsresult rv = parser.Init(filename);
if (NS_FAILED(rv))
return PR_FALSE;
INIClosure c = {
&parser,
versions, versionsLength,
properties, propertiesLength,
pathBuffer, buflen,
PR_FALSE
};
parser.GetSections(CheckINIHeader, &c);
return c.found;
}
#elif defined(XP_WIN)
static PRBool
CopyWithEnvExpansion(PRUnichar* aDest, const PRUnichar* aSource, PRUint32 aBufLen,
DWORD aType)
{
switch (aType) {
case REG_SZ:
if (wcslen(aSource) >= aBufLen)
return PR_FALSE;
wcscpy(aDest, aSource);
return PR_TRUE;
case REG_EXPAND_SZ:
if (ExpandEnvironmentStringsW(aSource, aDest, aBufLen) > aBufLen)
return PR_FALSE;
return PR_TRUE;
};
// Whoops! We expected REG_SZ or REG_EXPAND_SZ, what happened here?
return PR_FALSE;
}
PRBool
GRE_GetPathFromRegKey(HKEY aRegKey,
const GREVersionRange *versions,
PRUint32 versionsLength,
const GREProperty *properties,
PRUint32 propertiesLength,
PRUnichar* aBuffer, PRUint32 aBufLen)
{
// Formerly, GREs were registered at the registry key
// HKLM/Software/mozilla.org/GRE/<version> valuepair GreHome=Path.
// Nowadays, they are registered in any subkey of
// Software/mozilla.org/GRE, with the following valuepairs:
// Version=<version> (REG_SZ)
// GreHome=<path> (REG_SZ or REG_EXPAND_SZ)
// <Property>=<value> (REG_SZ)
//
// Additional meta-info may be available in the future, including
// localization info and other information which might be pertinent
// to selecting one GRE over another.
//
// When a GRE is being registered, it should try to register itself at
// HKLM/Software/mozilla.org/GRE/<Version> first, to preserve compatibility
// with older glue. If this key is already taken (i.e. there is more than
// one GRE of that version installed), it should append a unique number to
// the version, for example:
// 1.1 (already in use), 1.1_1, 1.1_2, etc...
DWORD i = 0;
while (PR_TRUE) {
PRUnichar name[MAXPATHLEN + 1];
DWORD nameLen = MAXPATHLEN;
if (::RegEnumKeyExW(aRegKey, i, name, &nameLen, NULL, NULL, NULL, NULL) !=
ERROR_SUCCESS) {
break;
}
HKEY subKey = NULL;
if (::RegOpenKeyExW(aRegKey, name, 0, KEY_QUERY_VALUE, &subKey) !=
ERROR_SUCCESS) {
continue;
}
PRUnichar version[40];
DWORD versionlen = 40;
PRUnichar pathbuf[MAXPATHLEN];
DWORD pathlen;
DWORD pathtype;
PRBool ok = PR_FALSE;
if (::RegQueryValueExW(subKey, L"Version", NULL, NULL,
(BYTE*) version, &versionlen) == ERROR_SUCCESS &&
CheckVersion(version, versions, versionsLength)) {
ok = PR_TRUE;
const GREProperty *props = properties;
const GREProperty *propsEnd = properties + propertiesLength;
for (; ok && props < propsEnd; ++props) {
pathlen = sizeof(pathbuf);
if (::RegQueryValueExW(subKey, NS_ConvertUTF8toUTF16(props->property).get(), NULL, &pathtype,
(BYTE*) pathbuf, &pathlen) != ERROR_SUCCESS ||
wcscmp(pathbuf, NS_ConvertUTF8toUTF16(props->value).get()))
ok = PR_FALSE;
}
pathlen = sizeof(pathbuf);
if (ok &&
(!::RegQueryValueExW(subKey, L"GreHome", NULL, &pathtype,
(BYTE*) pathbuf, &pathlen) == ERROR_SUCCESS ||
!*pathbuf ||
!CopyWithEnvExpansion(aBuffer, pathbuf, aBufLen, pathtype))) {
ok = PR_FALSE;
}
else if (!wcsncat(aBuffer, L"\\" LXPCOM_DLL, aBufLen)
#ifdef WINCE
|| (GetFileAttributesW(aBuffer) != INVALID_FILE_ATTRIBUTES)
#else
|| _waccess(aBuffer, R_OK)
#endif
) {
ok = PR_FALSE;
}
}
RegCloseKey(subKey);
if (ok)
return PR_TRUE;
++i;
}
aBuffer[0] = '\0';
return PR_FALSE;
}
#endif // XP_WIN
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