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* [newlib-cygwin] Cygwin: get_nt_native_path: allow to append suffix
@ 2021-05-25 14:56 Corinna Vinschen
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From: Corinna Vinschen @ 2021-05-25 14:56 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=15c96f2b2660d7a7776c61c9dc78d64262918955
commit 15c96f2b2660d7a7776c61c9dc78d64262918955
Author: Corinna Vinschen <corinna@vinschen.de>
Date: Tue May 25 16:24:58 2021 +0200
Cygwin: get_nt_native_path: allow to append suffix
POSIX message queues will be moved into NTFS streams.
Extend get_nt_native_path to provide a filename suffix which is not
subject to special character transposition, to allow specifying
a colon.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
Diff:
---
winsup/cygwin/path.cc | 8 +++++++-
winsup/cygwin/path.h | 2 +-
2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index b8850a11a..2b480131a 100644
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -502,8 +502,10 @@ path_conv::set_nt_native_path (PUNICODE_STRING new_path)
uni_path.Buffer = wide_path;
}
+/* If suffix is not NULL, append the suffix string verbatim.
+ This is used by fhandler_mqueue::mq_open to append an NTFS stream suffix. */
PUNICODE_STRING
-path_conv::get_nt_native_path ()
+path_conv::get_nt_native_path (PUNICODE_STRING suffix)
{
PUNICODE_STRING res;
if (wide_path)
@@ -514,9 +516,13 @@ path_conv::get_nt_native_path ()
{
uni_path.Length = 0;
uni_path.MaximumLength = (strlen (path) + 10) * sizeof (WCHAR);
+ if (suffix)
+ uni_path.MaximumLength += suffix->Length;
wide_path = (PWCHAR) cmalloc_abort (HEAP_STR, uni_path.MaximumLength);
uni_path.Buffer = wide_path;
::get_nt_native_path (path, uni_path, has_dos_filenames_only ());
+ if (suffix)
+ RtlAppendUnicodeStringToString (&uni_path, suffix);
res = &uni_path;
}
return res;
diff --git a/winsup/cygwin/path.h b/winsup/cygwin/path.h
index fe4dd5478..adb0ca11f 100644
--- a/winsup/cygwin/path.h
+++ b/winsup/cygwin/path.h
@@ -282,7 +282,7 @@ class path_conv
~path_conv ();
inline const char *get_win32 () const { return path; }
void set_nt_native_path (PUNICODE_STRING);
- PUNICODE_STRING get_nt_native_path ();
+ PUNICODE_STRING get_nt_native_path (PUNICODE_STRING = NULL);
inline POBJECT_ATTRIBUTES get_object_attr (OBJECT_ATTRIBUTES &attr,
SECURITY_ATTRIBUTES &sa)
{
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