GETBSIZE(3) OpenBSD Programmer's Manual GETBSIZE(3)NAME
getbsize - get user block size
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 NUL-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 NUL byte). The memory referenced by blocksizep
is filled in with the 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 ALSOdf(1), du(1), ls(1), systat(1), environ(7)HISTORY
The getbsize function first appeared in 4.4BSD.
OpenBSD 4.9 May 31, 2007 OpenBSD 4.9