GNU bug report logs - #16444
grep -r fails with "Bad file descriptor" for mingw-w64

Previous Next

Full log

View this message in rfc822 format

From: Norihiro Tanaka <noritnk <at> kcn.ne.jp>
To: David Grayson <davidegrayson <at> gmail.com>
Cc: 16444 <at> debbugs.gnu.org
Subject: bug#16444: bug #16444: grep -r fails with "Bad file descriptor" for mingw-w64
Date: 2015年3月11日 23:06:22 +0900

On 2015年3月10日 22:20:28 -0700
David Grayson <davidegrayson <at> gmail.com> wrote:
> Hello.
> 
> I am encountering this bug too. I would like to compile grep 2.21 for
> Windows using mingw-w64 and Git Bash. But the grep that I end up compiling
> exhibits several bugs related to recursive operation. To reproduce the
> bugs, I made a directory called "testdir" with two empty directories named
> "a" and "b" inside it. I used "cd" to go into the testdir.
> 
> Here is a shell session showing bug A:
> 
> $ ../src/grep.exe a -r
> c:\Users\David\Documents\grep\grep-2.21\src\grep.exe: 9: Bad file
> descriptor
> 
> Here is a shell session showing bug B:
> 
> $ ../src/grep.exe a -R
> c:\Users\David\Documents\grep\grep-2.21\src\grep.exe: warning: a:
> recursive directory loop
> c:\Users\David\Documents\grep\grep-2.21\src\grep.exe: warning: b:
> recursive directory loop
SAME_INODE macro defined in same-inode.h to be used by fts.c is as
following.
# define SAME_INODE(a, b) \
 ((a).st_ino == (b).st_ino \
 && (a).st_dev == (b).st_dev)
However, MinGW always returns ST_INO = 0, which is POSIX imcompatible.
I see that it leads to the result that all directories is same.
So if we compare the file path instead of st_ino, the bug may be fixed.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.