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Cygwin: pipes: create pipes with synchronization enabled 

This isn't used by Cygwin, but it might be used by Win32 processes
inheriting the handle.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2021-09-03 10:32:30 +02:00
parent 8efcee2500
commit fcccc4b743
1 changed files with 2 additions and 2 deletions
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4
winsup/cygwin/fhandler_pipe.cc
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@ -659,7 +659,7 @@ nt_create (LPSECURITY_ATTRIBUTES sa_ptr, PHANDLE r, PHANDLE w,
&cygheap->installation_key, &cygheap->installation_key,
GetCurrentProcessId ()); GetCurrentProcessId ());
access = GENERIC_READ | FILE_WRITE_ATTRIBUTES; access = GENERIC_READ | FILE_WRITE_ATTRIBUTES | SYNCHRONIZE;
ULONG pipe_type = pipe_byte ? FILE_PIPE_BYTE_STREAM_TYPE ULONG pipe_type = pipe_byte ? FILE_PIPE_BYTE_STREAM_TYPE
: FILE_PIPE_MESSAGE_TYPE; : FILE_PIPE_MESSAGE_TYPE;
@ -738,7 +738,7 @@ nt_create (LPSECURITY_ATTRIBUTES sa_ptr, PHANDLE r, PHANDLE w,
{ {
debug_printf ("NtOpenFile: name %S", &pipename); debug_printf ("NtOpenFile: name %S", &pipename);
access = GENERIC_WRITE | FILE_READ_ATTRIBUTES; access = GENERIC_WRITE | FILE_READ_ATTRIBUTES | SYNCHRONIZE;
status = NtOpenFile (w, access, &attr, &io, 0, 0); status = NtOpenFile (w, access, &attr, &io, 0, 0);
if (!NT_SUCCESS (status)) if (!NT_SUCCESS (status))
{ {