From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin-patches@cygwin.com
Subject: [PATCH] Cygwin: pipe: Fix raw_write() for non-cygwin pipe with size zero.
Date: Thu, 11 Nov 2021 17:19:23 +0900 [thread overview]
Message-ID: <20211111081923.802-1-takashi.yano@nifty.ne.jp> (raw)
- Currently, raw_write() fails to handle size zero pipe which may
be created by non-cygwin apps (e.g. Windows native ninja). This
patch fixes the issue.
Addresses:
https://cygwin.com/pipermail/cygwin/2021-November/249844.html
---
winsup/cygwin/fhandler_pipe.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/winsup/cygwin/fhandler_pipe.cc b/winsup/cygwin/fhandler_pipe.cc
index 13731437e..9392a28c1 100644
--- a/winsup/cygwin/fhandler_pipe.cc
+++ b/winsup/cygwin/fhandler_pipe.cc
@@ -449,7 +449,7 @@ fhandler_pipe_fifo::raw_write (const void *ptr, size_t len)
return -1;
}
- if (len <= pipe_buf_size)
+ if (len <= pipe_buf_size || pipe_buf_size == 0)
chunk = len;
else if (is_nonblocking ())
chunk = len = pipe_buf_size;
--
2.33.0
next reply other threads:[~2021-11-11 8:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-11 8:19 Takashi Yano [this message]
2021-11-11 9:10 ` Corinna Vinschen
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