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- /* Copyright (c) 1989 Citadel */
- /* All Rights Reserved */
-
- /* #ident "@(#)lsclose.c 1.5 - 91/09/23" */
-
- #include <ansi.h>
-
- /* ansi headers */
- #include <errno.h>
- #ifdef AC_STRING
- #include <string.h>
- #endif
-
- /* library headers */
- #include <blkio.h>
-
- /* local headers */
- #include "lseq_.h"
-
- /*man---------------------------------------------------------------------------
- NAME
- lsclose - close lseq
-
- SYNOPSIS
- #include <lseq.h>
-
- int lsclose(lsp)
- lseq_t *lsp;
-
- DESCRIPTION
- The lsclose function causes any buffered data for the named lseq
- to be written out, the file unlocked, and the lseq closed.
-
- lsclose will fail if one or more of the following is true:
-
- [EINVAL] lsp is not a valid lseq pointer.
- [LSENOPEN] lsp is not open.
-
- SEE ALSO
- lscreate, lslock, lsopen, lssync.
-
- DIAGNOSTICS
- Upon successful completion, a value of 0 is returned. Otherwise,
- a value of -1 is returned, and errno set to indicate the error.
-
- ------------------------------------------------------------------------------*/
- #ifdef AC_PROTO
- int lsclose(lseq_t *lsp)
- #else
- int lsclose(lsp)
- lseq_t *lsp;
- #endif
- {
- /* validate arguments */
- if (!ls_valid(lsp)) {
- errno = EINVAL;
- return -1;
- }
-
- /* check if not open */
- if (!(lsp->flags & LSOPEN)) {
- errno = LSENOPEN;
- return -1;
- }
-
- /* synchronize file with buffers and unlock file */
- if (lslock(lsp, LS_UNLCK) == -1) {
- LSEPRINT;
- return -1;
- }
-
- /* free memory allocated for lsp */
- ls_free(lsp);
-
- /* close lseq file */
- if (bclose(lsp->bp) == -1) {
- LSEPRINT;
- return -1;
- }
-
- /* scrub slot in lsb table then free it */
- memset(lsp, 0, sizeof(*lsb));
- lsp->flags = 0;
-
- return 0;
- }