GETBSIZE(3) BSD Library Functions Manual GETBSIZE(3)

NAME
     ggeettbbssiizzee - get user block size

LLIIBBRRAARRYY
     Standard C Library (libc, -lc)

SYNOPSIS
     ##iinncclluuddee <>

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

DESCRIPTION
     The ggeettbbssiizzee() 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 ggeettbbssiizzee() function returns a pointer to a null-terminated string
     describing the block size, something like ``1K-blocks''.  The memory ref-
     erenced 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
     df(1), du(1), ls(1), systat(1), environ(7)

HISTORY     The ggeettbbssiizzee() function first appeared in 4.4BSD.

BSD                              June 4, 1993                              BSD