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Re: truncate: Work around trailing slash bug in truncate() on AIX
From: |
Bruno Haible |
Subject: |
Re: truncate: Work around trailing slash bug in truncate() on AIX |
Date: |
Sat, 09 Jan 2021 08:22:15 +0100 |
User-agent: |
KMail/5.1.3 (Linux/4.4.0-197-generic; KDE/5.18.0; x86_64; ; ) |
> 2021-01-05 Bruno Haible <bruno@clisp.org>
>
> truncate: Work around trailing slash bug in truncate() on AIX 7.2.
> * m4/truncate.m4 (gl_FUNC_TRUNCATE): Add a test whether truncate
> rejects trailing slashes. Set REPLACE_TRUNCATE and define
> TRUNCATE_TRAILING_SLASH_BUG if not.
> * lib/truncate.c (orig_truncate): New function.
> (truncate): Add alternative implementation when
> TRUNCATE_TRAILING_SLASH_BUG is defined.
> * modules/truncate (Depends-on): Add sys_stat, stat.
Oops, I forgot to document this workaround.
2021-01-09 Bruno Haible <bruno@clisp.org>
truncate: Document last workaround.
* doc/posix-functions/truncate.texi: Document the AIX bug.
diff --git a/doc/posix-functions/truncate.texi
b/doc/posix-functions/truncate.texi
index 85a4dbe..8ee1fa7 100644
--- a/doc/posix-functions/truncate.texi
+++ b/doc/posix-functions/truncate.texi
@@ -15,6 +15,10 @@ mingw, MSVC 14, Android 4.4 with @code{AC_SYS_LARGEFILE} in
effect.
On platforms where @code{off_t} is a 32-bit type, this function is not
applicable to arbitrary lengths for files larger than 2 GB@. The fix is to
use the @code{AC_SYS_LARGEFILE} macro.
+@item
+This function does not fail when the file name argument ends in a slash
+and (without the slash) names a non-directory, on some platforms:
+AIX 7.2.
@end itemize
Portability problems not fixed by Gnulib: