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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* file.c - file dependency vertex code
*
* In principle, file dependencies should be retested on mount/unmount
* events, and dependency error flow used to determine whether a lost file
* affects the dependent service. If mount/unmount events are not available,
* the kstat facility (which registers or deregisters a statistic at
* mount/umount) could be used as an indirect filesystem event detector.
*
* In practice, file dependencies are checked only for existence at start
* time.
*/
#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <startd.h>
int
file_ready(graph_vertex_t *v)
{
char *fn;
struct stat sbuf;
int r;
char *file_fmri = v->gv_name;
/*
* Advance through file: FMRI until we have an absolute file path.
*/
if (strncmp(file_fmri, "file:///", sizeof ("file:///") - 1) == 0) {
fn = file_fmri + sizeof ("file://") - 1;
} else if (strncmp(file_fmri, "file://localhost/",
sizeof ("file://localhost/") - 1) == 0) {
fn = file_fmri + sizeof ("file://localhost") - 1;
} else if (strncmp(file_fmri, "file://", sizeof ("file://") - 1)
== 0) {
fn = file_fmri + sizeof ("file://") - 1;
/*
* Again, search for the next '/'.
*/
if ((fn = strchr(fn, '/')) == NULL)
return (0);
}
/*
* If stat(2) succeeds for that path, then the dependency is satisfied.
*/
do {
r = stat(fn, &sbuf);
} while (r == -1 && errno == EINTR);
return (r == -1 ? 0 : 1);
}
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