getbsize(3) BSD Library Functions Manual getbsize(3)
NAME
getbsize -- get user block size
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
char *
getbsize(int *headerlenp, long *blocksizep);
DESCRIPTION
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 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 getbsize() function first appeared in 4.4BSD.
BSD June 4, 1993 BSD
Mac OS X 10.8 - Generated Mon Aug 27 18:43:35 CDT 2012