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Command: getbsize | Section: 3 | Source: NetBSD | File: getbsize.3
GETBSIZE(3) FreeBSD 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 NUL terminated string
describing the block size, something like "1K-blocks". If the headerlenp
parameter is not NULL the memory referenced by headerlenp is filled in
with the length of the string (not including the terminating NUL). If
the blocksizep parameter is not 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.
FreeBSD 14.1-RELEASE-p8 May 30, 2003 FreeBSD 14.1-RELEASE-p8