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.

1 files changed, 1 insertions, 1 deletions

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;