From 7757ce1cb82b690f056814fb0008eeee9f57684d Mon Sep 17 00:00:00 2001
From: erw7 <erw7.github@gmail.com>
Date: Sat, 9 Mar 2019 14:26:02 +0900
Subject: [PATCH] executable(): return false if user is not owner #9703

S_IXUSR does not check ownership.  Test case:

    touch test.txt
    chmod 744 test.txt
    sudo chown root:root test.txt
    nvim -u NORC
    :echo executable('./test.txt')
---
 src/nvim/os/fs.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/nvim/os/fs.c b/src/nvim/os/fs.c
index 7f2ebeec2f..27db675c52 100644
--- a/src/nvim/os/fs.c
+++ b/src/nvim/os/fs.c
@@ -288,7 +288,11 @@ static bool is_executable(const char *name)
   // a directory.
   return (S_ISREG(mode));
 #else
-  return (S_ISREG(mode) && (S_IXUSR & mode));
+  int r = -1;
+  if (S_ISREG(mode)) {
+    RUN_UV_FS_FUNC(r, uv_fs_access, name, X_OK, NULL);
+  }
+  return (r == 0);
 #endif
 }