/* Utilities for reading/writing fstab, mtab, etc. Copyright (C) 1995-2020 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 <https://www.gnu.org/licenses/>. */ #ifndef _MNTENT_H #define _MNTENT_H 1 #include <features.h> #include <paths.h> #include <bits/types/FILE.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 */