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/* Copyright (C) 1991 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <errno.h>
#include <stddef.h>
#include <unistd.h>
#include <stdlib.h>
#include <limits.h>
#ifdef __linux__
#include <sys/vfs.h>
#endif
/* Get file-specific information about descriptor FD. */
long int
DEFUN(__fpathconf, (fd, name), int fd AND int name)
{
if (fd < 0)
{
errno = EBADF;
return -1;
}
switch (name)
{
default:
errno = EINVAL;
return -1;
case _PC_LINK_MAX:
#ifdef LINK_MAX
return LINK_MAX;
#else
errno = ENOSYS;
return -1;
#endif
case _PC_MAX_CANON:
#ifdef MAX_CANON
return MAX_CANON;
#else
errno = ENOSYS;
return -1;
#endif
case _PC_MAX_INPUT:
#ifdef MAX_INPUT
return MAX_INPUT;
#else
errno = ENOSYS;
return -1;
#endif
case _PC_NAME_MAX:
#ifdef __linux__
{
struct statfs buf;
if (__fstatfs (fd, &buf) < 0) return -1;
else return buf.f_namelen;
}
#else
#ifdef NAME_MAX
return NAME_MAX;
#else
errno = ENOSYS;
return -1;
#endif
#endif
case _PC_PATH_MAX:
#ifdef PATH_MAX
return PATH_MAX;
#else
errno = ENOSYS;
return -1;
#endif
case _PC_PIPE_BUF:
#ifdef PIPE_BUF
return PIPE_BUF;
#else
errno = ENOSYS;
return -1;
#endif
case _PC_CHOWN_RESTRICTED:
#ifdef _POSIX_CHOWN_RESTRICTED
return _POSIX_CHOWN_RESTRICTED;
#else
return -1;
#endif
case _PC_NO_TRUNC:
#ifdef _POSIX_NO_TRUNC
return _POSIX_NO_TRUNC;
#else
return -1;
#endif
case _PC_VDISABLE:
#ifdef _POSIX_VDISABLE
return _POSIX_VDISABLE;
#else
return -1;
#endif
}
errno = ENOSYS;
return -1;
}
#include <gnu-stabs.h>
#ifdef weak_alias
weak_alias (__fpathconf, fpathconf);
#endif
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