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01: /* Utilities for reading/writing fstab, mtab, etc. 02: Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. 03: This file is part of the GNU C Library. 04: 05: The GNU C Library is free software; you can redistribute it and/or 06: modify it under the terms of the GNU Lesser General Public 07: License as published by the Free Software Foundation; either 08: version 2.1 of the License, or (at your option) any later version. 09: 10: The GNU C Library is distributed in the hope that it will be useful, 11: but WITHOUT ANY WARRANTY; without even the implied warranty of 12: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13: Lesser General Public License for more details. 14: 15: You should have received a copy of the GNU Lesser General Public 16: License along with the GNU C Library; if not, write to the Free 17: Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 18: 02111-1307 USA. */ 19: 20: #ifndef _MNTENT_H 21: #define _MNTENT_H 1 22: 23: #include <features.h> 24: #define __need_FILE 25: #include <stdio.h> 26: #include <paths.h> 27: 28: 29: /* File listing canonical interesting mount points. */ 30: #define MNTTAB _PATH_MNTTAB /* Deprecated alias. */ 31: 32: /* File listing currently active mount points. */ 33: #define MOUNTED _PATH_MOUNTED /* Deprecated alias. */ 34: 35: 36: /* General filesystem types. */ 37: #define MNTTYPE_IGNORE "ignore" /* Ignore this entry. */ 38: #define MNTTYPE_NFS "nfs" /* Network file system. */ 39: #define MNTTYPE_SWAP "swap" /* Swap device. */ 40: 41: 42: /* Generic mount options. */ 43: #define MNTOPT_DEFAULTS "defaults" /* Use all default options. */ 44: #define MNTOPT_RO "ro" /* Read only. */ 45: #define MNTOPT_RW "rw" /* Read/write. */ 46: #define MNTOPT_SUID "suid" /* Set uid allowed. */ 47: #define MNTOPT_NOSUID "nosuid" /* No set uid allowed. */ 48: #define MNTOPT_NOAUTO "noauto" /* Do not auto mount. */ 49: 50: 51: __BEGIN_DECLS 52: 53: /* Structure describing a mount table entry. */ 54: struct mntent 55: { 56: char *mnt_fsname; /* Device or server for filesystem. */ 57: char *mnt_dir; /* Directory mounted on. */ 58: char *mnt_type; /* Type of filesystem: ufs, nfs, etc. */ 59: char *mnt_opts; /* Comma-separated options for fs. */ 60: int mnt_freq; /* Dump frequency (in days). */ 61: int mnt_passno; /* Pass number for `fsck'. */ 62: }; 63: 64: 65: /* Prepare to begin reading and/or writing mount table entries from the 66: beginning of FILE. MODE is as for `fopen'. */ 67: extern FILE *setmntent (__const char *__file, __const char *__mode) __THROW; 68: 69: /* Read one mount table entry from STREAM. Returns a pointer to storage 70: reused on the next call, or null for EOF or error (use feof/ferror to 71: check). */ 72: extern struct mntent *getmntent (FILE *__stream) __THROW; 73: 74: #ifdef __USE_MISC 75: /* Reentrant version of the above function. */ 76: extern struct mntent *getmntent_r (FILE *__restrict __stream, 77: struct mntent *__restrict __result, 78: char *__restrict __buffer, 79: int __bufsize) __THROW; 80: #endif 81: 82: /* Write the mount table entry described by MNT to STREAM. 83: Return zero on success, nonzero on failure. */ 84: extern int addmntent (FILE *__restrict __stream, 85: __const struct mntent *__restrict __mnt) __THROW; 86: 87: /* Close a stream opened with `setmntent'. */ 88: extern int endmntent (FILE *__stream) __THROW; 89: 90: /* Search MNT->mnt_opts for an option matching OPT. 91: Returns the address of the substring, or null if none found. */ 92: extern char *hasmntopt (__const struct mntent *__mnt, 93: __const char *__opt) __THROW; 94: 95: 96: __END_DECLS 97: 98: #endif /* mntent.h */ 99: