text: /* Utilities for reading/writing fstab, mtab, etc.
     Copyright (C) 1995-2015 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/>.  */
  
  #ifndef	_MNTENT_H
  #define	_MNTENT_H	1
  
  #include <features.h>
  #define __need_FILE
  #include <stdio.h>
  #include <paths.h>
  
  
  /* File listing canonical interesting mount points.  */
  #define	MNTTAB		_PATH_MNTTAB	/* Deprecated alias.  */
  
  /* File listing currently active mount points.  */
  #define	MOUNTED		_PATH_MOUNTED	/* Deprecated alias.  */
  
  
  /* General filesystem types.  */
  #define MNTTYPE_IGNORE	"ignore"	/* Ignore this entry.  */
  #define MNTTYPE_NFS	"nfs"		/* Network file system.  */
  #define MNTTYPE_SWAP	"swap"		/* Swap device.  */
  
  
  /* Generic mount options.  */
  #define MNTOPT_DEFAULTS	"defaults"	/* Use all default options.  */
  #define MNTOPT_RO	"ro"		/* Read only.  */
  #define MNTOPT_RW	"rw"		/* Read/write.  */
  #define MNTOPT_SUID	"suid"		/* Set uid allowed.  */
  #define MNTOPT_NOSUID	"nosuid"	/* No set uid allowed.  */
  #define MNTOPT_NOAUTO	"noauto"	/* Do not auto mount.  */
  
  
  __BEGIN_DECLS
  
  /* Structure describing a mount table entry.  */
  struct mntent
    {
      char *mnt_fsname;		/* Device or server for filesystem.  */
      char *mnt_dir;		/* Directory mounted on.  */
      char *mnt_type;		/* Type of filesystem: ufs, nfs, etc.  */
      char *mnt_opts;		/* Comma-separated options for fs.  */
      int mnt_freq;		/* Dump frequency (in days).  */
      int mnt_passno;		/* Pass number for `fsck'.  */
    };
  
  
  /* Prepare to begin reading and/or writing mount table entries from the
     beginning of FILE.  MODE is as for `fopen'.  */
  extern FILE *setmntent (const char *__file, const char *__mode) __THROW;
  
  /* Read one mount table entry from STREAM.  Returns a pointer to storage
     reused on the next call, or null for EOF or error (use feof/ferror to
     check).  */
  extern struct mntent *getmntent (FILE *__stream) __THROW;
  
  #ifdef __USE_MISC
  /* Reentrant version of the above function.  */
  extern struct mntent *getmntent_r (FILE *__restrict __stream,
  				   struct mntent *__restrict __result,
  				   char *__restrict __buffer,
  				   int __bufsize) __THROW;
  #endif
  
  /* Write the mount table entry described by MNT to STREAM.
     Return zero on success, nonzero on failure.  */
  extern int addmntent (FILE *__restrict __stream,
  		      const struct mntent *__restrict __mnt) __THROW;
  
  /* Close a stream opened with `setmntent'.  */
  extern int endmntent (FILE *__stream) __THROW;
  
  /* Search MNT->mnt_opts for an option matching OPT.
     Returns the address of the substring, or null if none found.  */
  extern char *hasmntopt (const struct mntent *__mnt,
  			const char *__opt) __THROW;
  
  
  __END_DECLS
  
  #endif	/* mntent.h */
  