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CBGETRCU.C
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1989-08-31
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/* Copyright (c) 1989 Citadel */
/* All Rights Reserved */
/* #ident "cbgetrcu.c 1.1 - 89/08/31" */
#include <blkio.h>
#include <errno.h>
#include <lseq.h>
#include "cbase_.h"
/*man---------------------------------------------------------------------------
NAME
cbgetrcur - get cbase record cursor
SYNOPSIS
#include <cbase.h>
int cbgetrcur(cbp, cbrpos_p)
cbase_t *cbp;
cbrpos_t *cbrpos_p;
DESCRIPTION
The cbgetrcur function gets the position of the record cursor of
cbase cbp into the location pointed to by cbrpos_p.
cbgetrcur will fail if one or more of the following is true:
[EINVAL] cbp is not a valid cbase pointer.
[EINVAL] cbrpos_p is the NULL pointer.
[CBELOCK] cbp is not locked.
[CBENOPEN] cbp is not open.
SEE ALSO
cbgetkcur, cbrcursor, cbsetrcur.
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 cbgetrcur(cbp, cbrpos_p)
cbase_t * cbp;
cbrpos_t * cbrpos_p;
{
int rs = 0;
lspos_t lspos = 0;
errno = 0;
/* validate arguments */
if ((!cb_valid(cbp)) || (cbrpos_p == NULL)) {
errno = EINVAL;
return -1;
}
/* check if not open */
if (!(cbp->flags & CBOPEN)) {
errno = CBENOPEN;
return -1;
}
/* check if not locked */
if (!(cbp->flags & CBLOCKS)) {
errno = CBELOCK;
return -1;
}
/* get record cursor position */
rs = lsgetcur(cbp->lsp, &lspos);
if (rs == -1) {
CBEPRINT;
return -1;
}
/* load return argument */
*cbrpos_p = lspos;
errno = 0;
return 0;
}