From 433ec4f14a5753c7689c83c20c9972915c53c204 Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <aurelien@aurel32.net>
Date: Fri, 10 Sep 2021 19:39:35 +0200
Subject: [PATCH] posix: Fix attribute access mode on getcwd [BZ #27476]

There is a GNU extension that allows to call getcwd(NULL, >0). It is
described in the documentation, but also directly in the unistd.h
header, just above the declaration.

Therefore the attribute access mode added in commit 06febd8c6705
is not correct. Drop it.
---
 posix/bits/unistd.h | 5 ++---
 posix/unistd.h      | 3 +--
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/posix/bits/unistd.h b/posix/bits/unistd.h
index f083138..622adeb 100644
--- a/posix/bits/unistd.h
+++ b/posix/bits/unistd.h
@@ -199,10 +199,9 @@ __NTH (readlinkat (int __fd, const char *__restrict __path,
 #endif
 
 extern char *__getcwd_chk (char *__buf, size_t __size, size_t __buflen)
-     __THROW __wur __attr_access ((__write_only__, 1, 2));
+     __THROW __wur;
 extern char *__REDIRECT_NTH (__getcwd_alias,
-			     (char *__buf, size_t __size), getcwd)
-  __wur __attr_access ((__write_only__, 1, 2));
+			     (char *__buf, size_t __size), getcwd) __wur;
 extern char *__REDIRECT_NTH (__getcwd_chk_warn,
 			     (char *__buf, size_t __size, size_t __buflen),
 			     __getcwd_chk)
diff --git a/posix/unistd.h b/posix/unistd.h
index 3dca657..8224c5f 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -528,8 +528,7 @@ extern int fchdir (int __fd) __THROW __wur;
    an array is allocated with `malloc'; the array is SIZE
    bytes long, unless SIZE == 0, in which case it is as
    big as necessary.  */
-extern char *getcwd (char *__buf, size_t __size) __THROW __wur
-    __attr_access ((__write_only__, 1, 2));
+extern char *getcwd (char *__buf, size_t __size) __THROW __wur;
 
 #ifdef	__USE_GNU
 /* Return a malloc'd string containing the current directory name.
-- 
1.8.3.1