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Bug 369108 - Win32's nsIFile::Create and nsIFile::CreateUnique ignore permissions argument. r=bsmedberg

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This commit is contained in:
Brian R. Bondy 2012-11-03 13:39:02 -04:00
parent 6f943e5171
commit bddd972422
1 changed files with 21 additions and 13 deletions
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34
xpcom/io/nsLocalFileWin.cpp
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@ -590,43 +590,51 @@ static nsresult
OpenFile(const nsAFlatString &name, int osflags, int mode,
PRFileDesc **fd)
{
// XXX : 'mode' is not translated !!!
int32_t access = 0;
int32_t flags = 0;
int32_t flag6 = 0;
if (osflags & PR_SYNC) flag6 = FILE_FLAG_WRITE_THROUGH;
PRInt32 disposition = 0;
PRInt32 attributes = 0;
if (osflags & PR_SYNC)
attributes = FILE_FLAG_WRITE_THROUGH;
if (osflags & PR_RDONLY || osflags & PR_RDWR)
access |= GENERIC_READ;
if (osflags & PR_WRONLY || osflags & PR_RDWR)
access |= GENERIC_WRITE;
if ( osflags & PR_CREATE_FILE && osflags & PR_EXCL )
flags = CREATE_NEW;
disposition = CREATE_NEW;
else if (osflags & PR_CREATE_FILE) {
if (osflags & PR_TRUNCATE)
flags = CREATE_ALWAYS;
disposition = CREATE_ALWAYS;
else
flags = OPEN_ALWAYS;
disposition = OPEN_ALWAYS;
} else {
if (osflags & PR_TRUNCATE)
flags = TRUNCATE_EXISTING;
disposition = TRUNCATE_EXISTING;
else
flags = OPEN_EXISTING;
disposition = OPEN_EXISTING;
}
if (osflags & nsIFile::DELETE_ON_CLOSE) {
flag6 |= FILE_FLAG_DELETE_ON_CLOSE;
attributes |= FILE_FLAG_DELETE_ON_CLOSE;
}
if (osflags & nsIFile::OS_READAHEAD) {
flag6 |= FILE_FLAG_SEQUENTIAL_SCAN;
attributes |= FILE_FLAG_SEQUENTIAL_SCAN;
}
// If no write permissions are requested, and if we are possibly creating
// the file, then set the new file as read only.
// The flag has no effect if we happen to open the file.
if (!(mode & (PR_IWUSR | PR_IWGRP | PR_IWOTH)) &&
disposition != OPEN_EXISTING) {
attributes |= FILE_ATTRIBUTE_READONLY;
}
HANDLE file = ::CreateFileW(name.get(), access,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, flags, flag6, NULL);
NULL, disposition, attributes, NULL);
if (file == INVALID_HANDLE_VALUE) {
*fd = nullptr;