glibc/sysdeps/posix/isfdtype.c

38 lines
1.2 KiB
C

/* Determine whether descriptor has given property.
Copyright (C) 1996, 1997, 2000 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 <sys/stat.h>
#include <sys/socket.h>
#include <sys/types.h>
int
isfdtype (int fildes, int fdtype)
{
struct stat64 st;
int result;
{
int save_error = errno;
result = fstat64 (fildes, &st);
__set_errno (save_error);
}
return result ?: (st.st_mode & S_IFMT) == (mode_t) fdtype;
}