getfsstat man page on DigitalUNIX

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getfsstat(2)							  getfsstat(2)

       getfsstat - Get a list of all mounted file systems

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

       int getfsstat(
	       struct statfs buf[],
	       long bufsize,
	       int flags );

       An  array of statfs structures.	Specifies the size in bytes of the buf
       parameter.  Specifies one of the following flags: Wait  for  an	update
       from each file system before returning information.  Return information
       without requesting an update from each file system. Thus, some  of  the
       information  will be out of date, but the getfsstat() function will not
       block because it is waiting for information from a file system that  is
       unable to respond.

       The  getfsstat()	 function  returns  information about all mounted file
       systems. Upon successful completion, the buffer pointed to by  the  buf
       parameter  is  filled  with an array of statfs structures, one for each
       mounted file system up to the size specified by the bufsize parameter.

       If the buf parameter is given as 0  (zero),  the	 getfsstat()  function
       returns just the number of mounted file systems.

       Upon   successful  completion,  the  number  of	statfs	structures  is
       returned. Otherwise, -1 is returned and errno is set  to	 indicate  the

       If  the getfsstat() function fails, errno may be set to one of the fol‐
       lowing values: The buf parameter points to an invalid address.  An  I/O
       error occurred while reading from or writing to the file system.

       Functions: statfs(2)

       Commands: mount(8)


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