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/*
* Copyright (C) 2022 The University of Notre Dame
* This software is distributed under the GNU General Public License.
* See the file COPYING for details.
*/
#ifndef FD_H
#define FD_H
/** Get the maximum number of open file descriptors to a process.
*
* @return n Maximum number of file descriptors.
*/
int fd_max (void);
/** Close all non-standard file descriptors.
* @return status 0 on success, otherwise holds errno.
*/
int fd_nonstd_close (void);
/** Close fd and open "/dev/null".
* @param fd File descriptor to reopen.
* @param oflag Flags to open of "/dev/null".
* @return status 0 on success, otherwise holds errno.
*/
int fd_null (int fd, int oflag);
#endif
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