From: Aurelien Jarno <aurelien@aurel32.net>
To: libc-alpha@sourceware.org
Cc: Aurelien Jarno <aurelien@aurel32.net>
Subject: [PATCH v2] posix: Fix attribute access mode on getcwd [BZ #27476]
Date: Fri, 10 Sep 2021 20:38:22 +0200 [thread overview]
Message-ID: <20210910183822.1458644-1-aurelien@aurel32.net> (raw)
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(-)
Note: I am aware of BZ #26545, however while it is being discussed, the
bug is still there, so I don't think we should block on a decision to
fix it.
diff --git a/posix/bits/unistd.h b/posix/bits/unistd.h
index f0831386c7..622adeb2b2 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 3dca65732f..8224c5fbc9 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.
--
2.30.2
next reply other threads:[~2021-09-10 18:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-10 18:38 Aurelien Jarno [this message]
2021-09-14 14:06 ` [PATCH v2] posix: Fix attribute access mode on getcwd [BZ #27476] Aurelien Jarno
2021-09-16 8:28 ` Florian Weimer via Libc-alpha
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