From 4421b92f2f2c85fc167d3d011ad9e9188095b3cb Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Wed, 15 Apr 2020 06:32:13 -0700
Subject: streams: bugfix: "m" mode: use 0666 in open.

* stream.c (w_fopen_mode): When the "m" mode is present such
that we resort to a combination of POSIX open and fdopen,
we must use the 0666 mode for open, not 0777. This will
create a file with execute permissions, if the umask
doesn't block it. It went unnoticed because umask is
usually 022.
---
 stream.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/stream.c b/stream.c
index 8856d9b8..a8177ff3 100644
--- a/stream.c
+++ b/stream.c
@@ -1089,7 +1089,7 @@ static FILE *w_fopen_mode(const wchar_t *wname, const wchar_t *mode,
   if (m.notrunc) {
     char *name = utf8_dup_to(wname);
     int flags = (m.read ? O_RDWR : O_WRONLY) | O_CREAT;
-    int fd = open(name, flags, 0777);
+    int fd = open(name, flags, 0666);
     free(name);
     if (fd < 0)
       return NULL;
-- 
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