#include <stdlib.h>(See libbsd(7) for include usage.)
getbsize(int *headerlenp, long *blocksizep);
getbsize() function returns a preferred block size for reporting by system utilities df(1), du(1), ls(1) and systat(1), based on the value of the
BLOCKSIZEmay be specified directly in bytes, or in multiples of a kilobyte by specifying a number followed by ``K'' or ``k'', in multiples of a megabyte by specifying a number followed by ``M'' or ``m'' or in multiples of a gigabyte by specifying a number followed by ``G'' or ``g''. Multiples must be integers.
Valid values of
BLOCKSIZE are 512 bytes to
1 gigabyte. Sizes less than 512 bytes are rounded up to 512 bytes, and sizes
greater than 1 GB are rounded down to 1 GB. In each case
getbsize() produces a warning message.
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.
SEE ALSO¶df(1), du(1), ls(1), systat(1), environ(7)
getbsize() function first appeared in 4.4BSD.
|November 16, 2012||Linux 4.19.0-6-amd64|