GETFSENT(3)             NetBSD Library Functions Manual            GETFSENT(3)


NAME
getfsent, getfsspec, getfsfile, setfsent, endfsent -- get file system descriptor file entry
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <fstab.h> struct fstab * getfsent(void); struct fstab * getfsspec(const char *spec); struct fstab * getfsfile(const char *file); int setfsent(void); void endfsent(void);
DESCRIPTION
The getfsent(), getfsspec(), and getfsfile() functions each return a pointer to an object with the following structure containing the broken- out fields of a line in the file system description file, <fstab.h>. struct fstab { char *fs_spec; /* block special device name */ char *fs_file; /* file system path prefix */ char *fs_vfstype; /* type of file system */ char *fs_mntops; /* comma separated mount options */ char *fs_type; /* rw, ro, sw, or xx */ int fs_freq; /* dump frequency, in days */ int fs_passno; /* pass number on parallel dump */ }; The fields have meanings described in fstab(5). The setfsent() function opens the file (closing any previously opened file) or rewinds it if it is already open. The endfsent() function closes the file. The getfsspec() and getfsfile() functions search the entire file (opening it if necessary) for a matching special file name or file system file name. For programs wishing to read the entire database, getfsent() reads the next entry (opening the file if necessary). All entries in the file with a type field equivalent to FSTAB_XX are ignored.
RETURN VALUES
The getfsent(), getfsspec(), and getfsfile() functions return a null pointer (0) on EOF or error. The setfsent() function returns 0 on fail- ure, 1 on success. The endfsent() function returns nothing.
FILES
/etc/fstab
SEE ALSO
getfsspecname(3), fstab(5)
HISTORY
The getfsent() function appeared in 4.0BSD; the endfsent(), getfsfile(), getfsspec(), and setfsent() functions appeared in 4.3BSD.
BUGS
These functions use static data storage; if the data is needed for future use, it should be copied before any subsequent calls overwrite it. NetBSD 8.1 March 6, 2012 NetBSD 8.1

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