NAME    [Toc]    [Back]

     getbsize - get user block size

LIBRARY    [Toc]    [Back]

     Standard C Library (libc, -lc)

SYNOPSIS    [Toc]    [Back]

     #include <stdlib.h>

     char *
     getbsize(int *headerlenp, long *blocksizep);

DESCRIPTION    [Toc]    [Back]

     The getbsize function determines the user's preferred block size based on
     the value of the ``BLOCKSIZE'' environment variable; see environ(7) for
     details on its use and format.

     The getbsize function returns a pointer to a null-terminated string
     describing the block size, something like ``1K-blocks''.  The memory referenced
 by headerlenp is filled in with the length of the string (not
     including the terminating null).  The memory referenced by blocksizep is
     filled in with block size, in bytes.

     If the user's block size is unreasonable, a warning message is written to
     standard error and the returned information reflects a block size of 512
     bytes.

SEE ALSO    [Toc]    [Back]

     df(1), du(1), ls(1), systat(1), environ(7)

HISTORY    [Toc]    [Back]

     The getbsize function first appeared in 4.4BSD.

BSD                              June 4, 1993                              BSD