getmntent(3C)                  DG/UX 5.4R3.00                  getmntent(3C)


NAME
       getmntent, setmntent, addmntent, endmntent, hasmntopt - get file
       system descriptor file entry

SYNOPSIS
       #include <stdio.h>
       #include <mntent.h>

       FILE *setmntent(char *filep, char *type)

       struct mntent *getmntent(FILE *filep)

       int addmntent(FILE *filep, struct mntent *mnt)

       char *hasmntopt(struct mntent *mnt, char *opt)

       int endmntent(FILE *filep)

DESCRIPTION
       These routines replace the getfsent routines for accessing the file
       system description file /etc/fstab.  They are also used to access the
       mounted file system description file /etc/mnttab.

       setmntent opens a file system description file and returns a file
       pointer which can then be used with getmntent, addmntent, or
       endmntent.  The type argument is the same as in fopen(3S).  getmntent
       reads the next line from filep and returns a pointer to an object
       with the following structure containing the broken-out fields of a
       line in the filesystem description file, <mntent.h>.  The fields have
       meanings described in fstab(4).

       struct mntent {
               char    *mnt_fsname;    /* file system name */
               char    *mnt_dir;       /* file system path prefix */
               char    *mnt_type;      /* 4.2, nfs, swap, or xx */
               char    *mnt_opts;      /* ro, quota, etc. */
               int     mnt_freq;       /* dump frequency, in days */
               int     mnt_passno;     /* pass number on parallel fsck */
       };


       addmntent adds the mntent structure mnt to the end of the open file
       filep.  addmntent returns 0 on success.  Note: filep has to be opened
       for writing if this is to work.  hasmntopt scans the mnt_opts field
       of the mntent structure mnt for a substring that matches opt.  It
       returns the address of the substring if a match is found, 0
       otherwise.  endmntent closes the file.

FILES
       /etc/fstab
       /etc/mnttab

DIAGNOSTICS
       NULL pointer (0) returned on EOF or error.



Licensed material--property of copyright holder(s)                         1

getmntent(3C)                  DG/UX 5.4R3.00                  getmntent(3C)


SEE ALSO
       fopen(3S), getfsent(3C), fstab(4), mnttab(4).

BUGS
       The returned mntent structure points to static information that is
       overwritten in each call.



















































Licensed material--property of copyright holder(s)                         2