glibc/io/mkfifoat.c

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/* Copyright (C) 1991-2013 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <fcntl.h>
#include <stddef.h>
#include <sys/stat.h>
#include <sys/types.h>
/* Create a named pipe (FIFO) named PATH relative to FD with
protections MODE. */
int
mkfifoat (fd, path, mode)
int fd;
const char *path;
mode_t mode;
{
if (path == NULL)
{
__set_errno (EINVAL);
return -1;
}
if (fd != AT_FDCWD && path[0] != '/')
{
/* Check FD is associated with a directory. */
struct stat64 st;
if (__fxstat64 (_STAT_VER, fd, &st) != 0)
return -1;
if (!S_ISDIR (st.st_mode))
{
__set_errno (ENOTDIR);
return -1;
}
}
__set_errno (ENOSYS);
return -1;
}
stub_warning (mkfifoat)