From be22b15ae2ff8d7fe06b6e14fddf0c5b444a95da Mon Sep 17 00:00:00 2001 From: rgrimes Date: Fri, 27 May 1994 05:00:24 +0000 Subject: BSD 4.4 Lite Lib Sources --- lib/libc/gen/getbsize.3 | 79 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 lib/libc/gen/getbsize.3 (limited to 'lib/libc/gen/getbsize.3') diff --git a/lib/libc/gen/getbsize.3 b/lib/libc/gen/getbsize.3 new file mode 100644 index 0000000..0455573 --- /dev/null +++ b/lib/libc/gen/getbsize.3 @@ -0,0 +1,79 @@ +.\" Copyright (c) 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" 3. All advertising materials mentioning features or use of this software +.\" must display the following acknowledgement: +.\" This product includes software developed by the University of +.\" California, Berkeley and its contributors. +.\" 4. Neither the name of the University nor the names of its contributors +.\" may be used to endorse or promote products derived from this software +.\" without specific prior written permission. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" @(#)getbsize.3 8.1 (Berkeley) 6/4/93 +.\" +.Dd June 4, 1993 +.Dt GETBSIZE 3 +.Os BSD 4.4 +.Sh NAME +.Nm getbsize +.Nd get user block size +.Sh SYNOPSIS +.Fd #include +.Ft char * +.Fn getbsize "int *headerlenp" "long *blocksizep" +.Sh DESCRIPTION +The +.Nm getbsize +function determines the user's preferred block size based on the value of the +.Dq BLOCKSIZE +environment variable; see +.Xr environ 7 +for details on its use and format. +.Pp +The +.Nm getbsize +function returns a pointer to a null-terminated string describing +the block size, something like +.Dq 1K-blocks . +The memory referenced by +.Fa headerlenp +is filled in with the length of the string (not including the +terminating null). +The memory referenced by +.Fa blocksizep +is filled in with block size, in bytes. +.Pp +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. +.Sh SEE ALSO +.Xr df 1 , +.Xr du 1 , +.Xr ls 1 , +.Xr systat 1 , +.Xr environ 7 +.Sh HISTORY +The +.Nm getbsize +function call appeared in +.Bx 4.4 . -- cgit v1.1