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kernel32: Use the correct access rights when opening named pipes.

This commit is contained in:
Alexandre Julliard 2007-04-16 14:32:18 +02:00
parent 58c7c51485
commit 9eaaadbb47
1 changed files with 23 additions and 9 deletions
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32
dlls/kernel32/sync.c
View File

@ -1114,7 +1114,7 @@ HANDLE WINAPI CreateNamedPipeW( LPCWSTR name, DWORD dwOpenMode,
HANDLE handle;
UNICODE_STRING nt_name;
OBJECT_ATTRIBUTES attr;
DWORD options;
DWORD access, options;
BOOLEAN pipe_type, read_mode, non_block;
NTSTATUS status;
IO_STATUS_BLOCK iosb;
@ -1144,13 +1144,27 @@ HANDLE WINAPI CreateNamedPipeW( LPCWSTR name, DWORD dwOpenMode,
attr.SecurityDescriptor = sa ? sa->lpSecurityDescriptor : NULL;
attr.SecurityQualityOfService = NULL;
options = 0;
switch(dwOpenMode & 3)
{
case PIPE_ACCESS_INBOUND:
options = FILE_PIPE_INBOUND;
access = GENERIC_READ;
break;
case PIPE_ACCESS_OUTBOUND:
options = FILE_PIPE_OUTBOUND;
access = GENERIC_WRITE;
break;
case PIPE_ACCESS_DUPLEX:
options = FILE_PIPE_FULL_DUPLEX;
access = GENERIC_READ | GENERIC_WRITE;
break;
default:
SetLastError( ERROR_INVALID_PARAMETER );
return INVALID_HANDLE_VALUE;
}
access |= SYNCHRONIZE;
if (dwOpenMode & FILE_FLAG_WRITE_THROUGH) options |= FILE_WRITE_THROUGH;
if (!(dwOpenMode & FILE_FLAG_OVERLAPPED)) options |= FILE_SYNCHRONOUS_IO_ALERT;
if ((dwOpenMode & PIPE_ACCESS_DUPLEX) == PIPE_ACCESS_DUPLEX)
options |= FILE_PIPE_FULL_DUPLEX;
else if (dwOpenMode & PIPE_ACCESS_INBOUND) options |= FILE_PIPE_INBOUND;
else if (dwOpenMode & PIPE_ACCESS_OUTBOUND) options |= FILE_PIPE_OUTBOUND;
pipe_type = (dwPipeMode & PIPE_TYPE_MESSAGE) ? TRUE : FALSE;
read_mode = (dwPipeMode & PIPE_READMODE_MESSAGE) ? TRUE : FALSE;
non_block = (dwPipeMode & PIPE_NOWAIT) ? TRUE : FALSE;
@ -1159,9 +1173,9 @@ HANDLE WINAPI CreateNamedPipeW( LPCWSTR name, DWORD dwOpenMode,
timeout.QuadPart = (ULONGLONG)nDefaultTimeOut * -10000;
SetLastError(0);
status = NtCreateNamedPipeFile(&handle, GENERIC_READ|GENERIC_WRITE, &attr, &iosb,
0, FILE_OVERWRITE_IF, options, pipe_type,
status = NtCreateNamedPipeFile(&handle, access, &attr, &iosb, 0,
FILE_OVERWRITE_IF, options, pipe_type,
read_mode, non_block, nMaxInstances,
nInBufferSize, nOutBufferSize, &timeout);