From dd1890b79725d4a044039b476e6ad4592d2c9399 Mon Sep 17 00:00:00 2001 From: Paul Eggert Date: Sat, 11 Nov 2017 22:33:38 -0800 Subject: faccessat: port to macOS (Bug#29231) macOS faccessat has the same bug that lstat does: if the file name ends in '/' it ignores the trailing slash. Problem reported for Emacs by Vincent Zhang. * doc/posix-functions/faccessat.texi (faccessat): Document this. * lib/faccessat.c (_GL_INCLUDING_UNISTD_H): Define and undef around the initial includes. Include errno.h, string.h, sys/stat.h. (orig_faccessat) [HAVE_FACCESSAT]: New function. Include "unistd.h" after defining it. (rpl_faccessat) [HAVE_FACCESSAT]: New implementation. * lib/unistd.in.h (faccessat) [REPLACE_FACCESSAT]: Handle in the usual way. * m4/faccessat.m4 (gl_FUNC_FACCESSAT): Replace faccessat if lstat dereferences symlinks, since faccessat is likely to have the same problem. * m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Default REPLACE_ACCESSAT. * modules/faccessat (Depends-on): Add fstatat. Depend if REPLACE_FACCESSAT is 1, too. (configure.ac): Link if REPLACE_FACCESSAT is 1. * modules/faccessat-tests (Depends-on): Add symlink. * modules/unistd (unistd.h): Substitute REPLACE_FACCESSAT. * tests/test-faccessat.c (main): Test for the bug. --- modules/faccessat-tests | 1 + 1 file changed, 1 insertion(+) (limited to 'modules/faccessat-tests') diff --git a/modules/faccessat-tests b/modules/faccessat-tests index 144e0968c6..3beffcd23b 100644 --- a/modules/faccessat-tests +++ b/modules/faccessat-tests @@ -5,6 +5,7 @@ tests/macros.h Depends-on: fcntl-h +symlink configure.ac: -- cgit v1.2.1