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NetBSD 6.1.5 - man page for getbsize (netbsd section 3)

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

     getbsize -- get user block size

     Standard C Library (libc, -lc)

     #include <stdlib.h>

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

     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 ref-
     erenced by headerlenp is filled in with the length of the string (not including the termi-
     nating 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.

     df(1), du(1), ls(1), systat(1), environ(7)

     The getbsize function first appeared in 4.4BSD.

BSD					   May 30, 2003 				      BSD
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