exportent(3)                                         exportent(3)



NAME
     exportent, getexportent, setexportent, addexportent,
     remexportent,   endexportent   -  get  exported  file-system
     information

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

     FILE *setexportent()

     struct exportent *getexportent(filep)
     FILE *filep;

     int addexportent(filep, dirname, options)
     FILE *filep;
     char *dirname;
     char *options;

     int remexportent(filep, dirname)
     FILE *filep;
     char *dirname;

     char *getexportopt(xent, opt)
     struct exportent *xent;
     char *opt;

     void endexportent(filep)
     FILE *filep;

DESCRIPTION
     These routines access the exported file-system information
     in /etc/xtab.

     setexportent opens the export information file and returns a
     file pointer to use with getexportent, addexportent,
     remexportent, and endexportent.

     getexportent reads the next line from filep and returns a
     pointer to an object with the following structure,
     containing the fields of an entry in the /etc/xtab file. The
     meaning of each option is described in exports(4).

        #define ACCESS_OPT "access" /* machines that can mount fs */
        #define ROOT_OPT   "root"   /* machines with root access of fs */
        #define RO_OPT     "ro"     /* export read-only */
        #define ANON_OPT   "anon"   /* uid for anonymous requests */
        #define SECURE_OPT "secure" /* require secure NFS for access */
        #define WINDOW_OPT "window" /* expiration window for credential */
        struct exportent {
          char *xent_dirname;      /* directory (or file) to export */
          char *xent_options;      /* options, as above */



January 1992                                                    1

exportent(3)                                         exportent(3)



        };

     The addexportent routine adds the contents of the exportent
     structure to the end of the open file filep.  It returns 0
     if successful and  -1 on failure.

     The remexportent routine removes the indicated entry from
     the list.  It also returns 0 on success and -1 on failure.

     The getexportopt routine scans the xent_options field of the
     exportent structure for a substring that matches opt.  It
     returns the string value of opt, or NULL if the option is
     not found.

     The endexportent routine closes the file.

STATUS MESSAGES AND VALUES
     A NULL pointer (0) is returned if an end-of-file character
     is reached or an error occurs.

LIMITATIONS
     The returned exportent structure points to static
     information that is overwritten in each call.

FILES
     /etc/exports
          File containing entries that are used by exportfs to
          export data
     /etc/xtab
          File that reflects the currently exported data

SEE ALSO
     exports(4)

     exportfs(1M) in A/UX System Administrator's Reference




















2                                                    January 1992