ultrix man page for getmountent

getmountent(3)						     Library Functions Manual						    getmountent(3)

Name
       getmountent - get information about mounted file systems without blocking

Syntax
       #include <sys/types.h>
       #include <sys/param.h>
       #include <sys/mount.h>

       getmountent(start, buffer, nentries)
       int	 *start;
       struct fs_data *buffer;
       int	  nentries;

Description
       The  library  routine  retrieves  mounted file system information from memory without blocking.	The file system information retrieved (the
       number of free inodes and blocks) might not be up to date.  If the accuracy of the file	system	information  retrieved	is  critical,  you
       should use or instead of

       The start argument is the current logical location within the internal system mount table and must be initially set to 0.  The buffer argu-
       ment is the holding area for the returned information; that is, the structures.	The size of buffer  should  be	at  least  the	number	of
       entries times the size of the structure, in bytes.

       The nentries argument defines the number of mount table entries that are to be retrieved.

       The  number  of	file  systems described by the information placed in buffer is returned.  The start argument is updated so that successive
       calls can be used to retrieve the entire mount table.

Return Values
       Upon successful completion, a value indicating the number of structures stored in buffer is returned.  If there are no more file systems in
       the mount table, is returned.  Otherwise, is returned and the global variable errno is set to indicate the error.

Diagnostics
       EINVAL	      Invalid argument.

       EFAULT	      Either buffer or start causes an illegal address to be referenced.

       EIO	      An I/O error occurred while reading from the file system.

See Also
       getmnt(2), statfs(3)

																    getmountent(3)