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Fix pathconf(_PC_BUF_SIZE).

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This commit is contained in:
Ulrich Drepper
2011-05-02 20:59:51 -04:00
parent 6fdb1ce876
commit 6e04cbbe79
3 changed files with 21 additions and 3 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2011-05-02 Ulrich Drepper <drepper@gmail.com>
[BZ #12723]
* sysdeps/unix/sysv/linux/pathconf.c (__pathconf): Implement
_PC_PIPE_BUF handling.
2011-04-30 Bruno Haible <bruno@clisp.org> 2011-04-30 Bruno Haible <bruno@clisp.org>
[BZ #12717] [BZ #12717]

4
NEWS
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@ -1,4 +1,4 @@
GNU C Library NEWS -- history of user-visible changes. 2011-5-1 GNU C Library NEWS -- history of user-visible changes. 2011-5-2
Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc. Copyright (C) 1992-2009, 2010, 2011 Free Software Foundation, Inc.
See the end for copying conditions. See the end for copying conditions.
@ -19,7 +19,7 @@ Version 2.14
* The following bugs are resolved with this release: * The following bugs are resolved with this release:
11724, 12420, 12445, 12454, 12460, 12469, 12489, 12509, 12510, 12518, 12583, 11724, 12420, 12445, 12454, 12460, 12469, 12489, 12509, 12510, 12518, 12583,
12587, 12597, 12631, 12650, 12653, 12655, 12685, 12717 12587, 12597, 12631, 12650, 12653, 12655, 12685, 12717, 12723
Version 2.13 Version 2.13

14
sysdeps/unix/sysv/linux/pathconf.c
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@ -1,5 +1,5 @@
/* Get file-specific information about a file. Linux version. /* Get file-specific information about a file. Linux version.
Copyright (C) 1991,1995,1996,1998-2003,2008,2010 Free Software Foundation, Inc. Copyright (C) 1991,1995,1996,1998-2003,2008,2010,2011 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -36,6 +36,7 @@ long int
__pathconf (const char *file, int name) __pathconf (const char *file, int name)
{ {
struct statfs fsbuf; struct statfs fsbuf;
int fd;
switch (name) switch (name)
{ {
@ -51,6 +52,17 @@ __pathconf (const char *file, int name)
case _PC_CHOWN_RESTRICTED: case _PC_CHOWN_RESTRICTED:
return __statfs_chown_restricted (__statfs (file, &fsbuf), &fsbuf); return __statfs_chown_restricted (__statfs (file, &fsbuf), &fsbuf);
case _PC_PIPE_BUF:
fd = open_not_cancel_2 (file, O_RDONLY|O_NONBLOCK);
if (fd >= 0)
{
long int r = __fcntl (fd, F_GETPIPE_SZ);
close_not_cancel_no_status (fd);
if (r > 0)
return r;
}
/* FALLTHROUGH */
default: default:
return posix_pathconf (file, name); return posix_pathconf (file, name);
} }