73b702e3d1
This corresponds to https://github.com/msys2/msys2-runtime/pull/205. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
44 lines
1.7 KiB
Diff
44 lines
1.7 KiB
Diff
From 436c8752437af86d24712a5a95b78fecde3ad35b Mon Sep 17 00:00:00 2001
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From: Takashi Yano <takashi.yano@nifty.ne.jp>
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Date: Sun, 3 Mar 2024 14:09:07 +0900
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Subject: [PATCH 60/N] Cygwin: pipe: Give up to use query_hdl for non-cygwin
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apps.
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Non-cygwin app may call ReadFile() which makes NtQueryObject() for
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ObjectNameInformation block in fhandler_pipe::get_query_hdl_per_process.
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Therefore, stop to try to get query_hdl for non-cygwin apps.
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Addresses: https://github.com/msys2/msys2-runtime/issues/202
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Backported-from: https://inbox.sourceware.org/cygwin-patches/20240303050915.2024-1-takashi.yano@nifty.ne.jp/
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Fixes: b531d6b06eeb ("Cygwin: pipe: Introduce temporary query_hdl.")
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Reported-by: Alisa Sireneva, Johannes Schindelin <Johannes.Schindelin@gmx.de>
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Reviewed-by:
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Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
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Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
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---
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winsup/cygwin/fhandler/pipe.cc | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/winsup/cygwin/fhandler/pipe.cc b/winsup/cygwin/fhandler/pipe.cc
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index 283319c..9319a57 100644
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--- a/winsup/cygwin/fhandler/pipe.cc
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+++ b/winsup/cygwin/fhandler/pipe.cc
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@@ -1251,6 +1251,16 @@ fhandler_pipe::get_query_hdl_per_process (WCHAR *name,
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for (LONG i = (LONG) n_process - 1; i >= 0; i--)
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{
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+ /* Non-cygwin app may call ReadFile() which makes NtQueryObject()
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+ for ObjectNameInformation block. Therefore, stop to try to get
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+ query_hdl for non-cygwin apps. */
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+ pid_t cygpid;
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+ if (!(cygpid = cygwin_pid (proc_pids[i])))
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+ continue;
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+ pinfo p (cygpid);
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+ if (p && ISSTATE (p, PID_NOTCYGWIN))
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+ continue;
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+
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HANDLE proc = OpenProcess (PROCESS_DUP_HANDLE
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| PROCESS_QUERY_INFORMATION,
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0, proc_pids[i]);
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