MOUNT(3R)                                                            MOUNT(3R)



NAME
     mount, sgi_mount - keep track of remotely mounted filesystems

SYNOPSIS
     #include <rpcsvc/mount.h>

RPC INFORMATION
   Program number:
     MOUNTPROG, MOUNTPROG_SGI

   XDR routines:
          bool_t    xdr_exportbody(XDR *, struct exports *)
          bool_t    xdr_exports(XDR *, struct exports **);
          bool_t    xdr_fhandle(XDR *, fhandle_t *);
          bool_t    xdr_fhstatus(XDR *, struct fhstatus *);
          bool_t    xdr_groups(XDR *, struct groups *);
          bool_t    xdr_mountbody(XDR *, mountlist *);
          bool_t    xdr_mountlist(XDR *, mountlist **);
          bool_t    xdr_path(XDR *, char **);
          /* sgi_mount only */
          bool_t    xdr_exportlist(XDR *, struct exportlist **);
          bool_t    xdr_exportentry(XDR *, struct exportentry **);
          bool_t    xdr_statvfs(XDR *, struct mntrpc_statvfs *);


   Procedures:
     MOUNTPROC_MNT
          Argument of xdr_path, returns fhstatus.
          Requires UNIX authentication.

     MOUNTPROC_DUMP
          No arguments, returns struct mountlist.

     MOUNTPROC_UMNT
          Argument of xdr_path, no results.
          Requires UNIX authentication.

     MOUNTPROC_UMNTALL
          No arguments, no results.
          Requires UNIX authentication.
          Unmounts all remote mounts of sender.

     MOUNTPROC_EXPORT

     MOUNTPROC_EXPORTALL
          No arguments, returns struct exports.

     MOUNTPROC_EXPORTLIST     (sgi_mount only)
          No arguments, returns struct exportlist.






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MOUNT(3R)                                                            MOUNT(3R)



     MOUNTPROC_STATVFS   (sgi_mount only)
          Argument of xdr_path, returns mntrpc_statvfs.

   Versions:
     MOUNTVERS_ORIG
          Universal program version.

     MOUNTVERS_SGI_ORIG
          SGI enhanced version for complete exports inquiry and statvfs.

   Structures:
          struct mountlist {       /* what is mounted */
               char *ml_name;
               char *ml_path;
               struct mountlist *ml_nxt;
          };
          struct fhstatus {
               int fhs_status;
               fhandle_t fhs_fh;
          };
          /*
           * List of exported directories.
           * An export entry with ex_groups NULL indicates an entry
           * which is exported to the world.
           */
          struct exports {
               dev_t          ex_dev;        /* dev of directory */
               char      *ex_name; /* name of directory */
               struct groups  *ex_groups;    /* groups given access */
               struct exports *ex_next;
          };
          struct groups {
               char      *g_name;
               struct groups  *g_next;
          };
          /* sgi_mount only */
          struct exportlist {
               struct exportentry {
                    char      *ee_dirname;
                    char      *ee_options;
               } el_entry;
               struct exportlist   *el_next;
          };
          struct mntrpc_statvfs {
               u_long  f_bsize;        /* fundamental file system block size */
               u_long  f_frsize;       /* fragment size */
               u_long  f_blocks;       /* total # of blocks of f_frsize on fs */
               u_long  f_bfree;        /* total # of free blocks of f_frsize */
               u_long  f_bavail;       /* # of free blocks avail to non-superuser */
               u_long  f_files;        /* total # of file nodes (inodes) */
               u_long  f_ffree;        /* total # of free file nodes */
               u_long  f_favail;       /* # of free nodes avail to non-superuser */



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MOUNT(3R)                                                            MOUNT(3R)



              u_long  f_fsid;         /* file system id (dev for now) */
               char    f_basetype[16]; /* target fs type name, null-terminated */
               u_long  f_flag;         /* bit-mask of flags */
               u_long  f_namemax;      /* maximum file name length */
               char    f_fstr[32];     /* filesystem-specific string */
          };


NOTE
     To compile and link a program that calls these routines, follow the
     procedures for section (3R) routines as described in intro (3).

SEE ALSO
     exportfs(1M), mount(1M), showmount(1M), mountd(1M), exports(4).









































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