home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
World of Shareware - Software Farm 2
/
wosw_2.zip
/
wosw_2
/
CPROG
/
CBASE101.ZIP
/
BLKIO112.ZIP
/
BGETH.C
< prev
next >
Wrap
Text File
|
1990-06-20
|
1KB
|
50 lines
/* Copyright (c) 1989 Citadel */
/* All Rights Reserved */
/* #ident "@(#)bgeth.c 1.4 - 90/06/20" */
/* ansi headers */
/*#include <stddef.h>*/
/* local headers */
#include "blkio_.h"
/*man---------------------------------------------------------------------------
NAME
bgeth - get the header from a block file
SYNOPSIS
#include <blkio.h>
int bgeth(bp, buf)
BLKFILE *bp;
void *buf;
DESCRIPTION
The bgeth function reads the header from the block file
associated with BLKFILE pointer bp. buf must point to a storage
area at least as large as the header size for bp.
bgeth will fail if one or more of the following is true:
[EINVAL] bp is not a valid block file.
[EINVAL] buf is NULL.
[BEEOF] bp is empty.
[BEEOF] End of file encountered within header.
[BENOPEN] bp is not open for reading.
SEE ALSO
bgetb, bgethf, bputh.
DIAGNOSTICS
Upon successful completion, a value of 0 is returned. Otherwise,
a value of -1 is returned, and errno set to indicate the error.
------------------------------------------------------------------------------*/
int bgeth(bp, buf)
BLKFILE *bp;
void *buf;
{
return bgethf(bp, (size_t)0, buf, bp->hdrsize);
}