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Bug 688881 - Buffer overflow fix in nsDirectoryService::GetCurrentProcessDirectory. r=ehsan

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This commit is contained in:
Brian R. Bondy 2011-11-28 18:59:20 -05:00
parent 8997b6070f
commit 8d63d631cb
1 changed files with 4 additions and 3 deletions
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7
xpcom/io/nsDirectoryService.cpp
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@ -130,9 +130,10 @@ nsDirectoryService::GetCurrentProcessDirectory(nsILocalFile** aFile)
#ifdef XP_WIN
PRUnichar buf[MAX_PATH];
if ( ::GetModuleFileNameW(0, buf, sizeof(buf)) )
{
PRUnichar buf[MAX_PATH + 1];
SetLastError(ERROR_SUCCESS);
if (GetModuleFileNameW(0, buf, mozilla::ArrayLength(buf)) &&
GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
// chop off the executable name by finding the rightmost backslash
PRUnichar* lastSlash = wcsrchr(buf, L'\\');
if (lastSlash)