getfsstat(2)							System Calls Manual						      getfsstat(2)

NAME

       getfsstat - Gets list of all mounted file systems

SYNOPSIS

       #include <sys/types.h> #include <sys/mount.h>
       getfsstat(      struct statfs buf[],	 long bufsize,	    int flags );

PARAMETERS

       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.  Information is returned 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       of  the	information  will  be  out of date, but the getfsstat() function will not block waiting for information from a file system that is
       unable to respond.

DESCRIPTION

       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.

RETURN VALUE

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

ERRORS

       If the getfsstat() function fails, errno may be set to one of the following values: The buf parameter points to an invalid address.  An I/O
       error occurred while reading from or writing to the file system.  [Tru64 UNIX]  The structure pointed to by the buf parameter  cannot  cor-
       rectly represent the value to be returned.

	      This  error  can	occur  in applications compiled on DIGITAL UNIX systems, on Tru64 UNIX systems earlier than Version 5.0, or on any
	      system while using the __V40_OBJ_COMPAT compiler macro.  These applications use a <statfs> structure not compatible with Tru64  UNIX
	      Version 5.0 for the following fields: f_blocks, f_bfree, f_bavail, f_mntonname, f_mntfromname.

RELATED INFORMATION

       Functions: statfs(2)

       Commands: mount(8) delim off

																      getfsstat(2)