1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
24*0Sstevel@tonic-gate * Use is subject to license terms.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate /*
30*0Sstevel@tonic-gate * file.c - file dependency vertex code
31*0Sstevel@tonic-gate *
32*0Sstevel@tonic-gate * In principle, file dependencies should be retested on mount/unmount
33*0Sstevel@tonic-gate * events, and dependency error flow used to determine whether a lost file
34*0Sstevel@tonic-gate * affects the dependent service. If mount/unmount events are not available,
35*0Sstevel@tonic-gate * the kstat facility (which registers or deregisters a statistic at
36*0Sstevel@tonic-gate * mount/umount) could be used as an indirect filesystem event detector.
37*0Sstevel@tonic-gate *
38*0Sstevel@tonic-gate * In practice, file dependencies are checked only for existence at start
39*0Sstevel@tonic-gate * time.
40*0Sstevel@tonic-gate */
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate #include <sys/stat.h>
43*0Sstevel@tonic-gate #include <sys/types.h>
44*0Sstevel@tonic-gate #include <errno.h>
45*0Sstevel@tonic-gate #include <stdio.h>
46*0Sstevel@tonic-gate #include <string.h>
47*0Sstevel@tonic-gate #include <strings.h>
48*0Sstevel@tonic-gate
49*0Sstevel@tonic-gate #include <startd.h>
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate int
file_ready(graph_vertex_t * v)52*0Sstevel@tonic-gate file_ready(graph_vertex_t *v)
53*0Sstevel@tonic-gate {
54*0Sstevel@tonic-gate char *fn;
55*0Sstevel@tonic-gate struct stat sbuf;
56*0Sstevel@tonic-gate int r;
57*0Sstevel@tonic-gate char *file_fmri = v->gv_name;
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate /*
60*0Sstevel@tonic-gate * Advance through file: FMRI until we have an absolute file path.
61*0Sstevel@tonic-gate */
62*0Sstevel@tonic-gate if (strncmp(file_fmri, "file:///", sizeof ("file:///") - 1) == 0) {
63*0Sstevel@tonic-gate fn = file_fmri + sizeof ("file://") - 1;
64*0Sstevel@tonic-gate } else if (strncmp(file_fmri, "file://localhost/",
65*0Sstevel@tonic-gate sizeof ("file://localhost/") - 1) == 0) {
66*0Sstevel@tonic-gate fn = file_fmri + sizeof ("file://localhost") - 1;
67*0Sstevel@tonic-gate } else if (strncmp(file_fmri, "file://", sizeof ("file://") - 1)
68*0Sstevel@tonic-gate == 0) {
69*0Sstevel@tonic-gate fn = file_fmri + sizeof ("file://") - 1;
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate /*
72*0Sstevel@tonic-gate * Again, search for the next '/'.
73*0Sstevel@tonic-gate */
74*0Sstevel@tonic-gate if ((fn = strchr(fn, '/')) == NULL)
75*0Sstevel@tonic-gate return (0);
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate /*
79*0Sstevel@tonic-gate * If stat(2) succeeds for that path, then the dependency is satisfied.
80*0Sstevel@tonic-gate */
81*0Sstevel@tonic-gate do {
82*0Sstevel@tonic-gate r = stat(fn, &sbuf);
83*0Sstevel@tonic-gate } while (r == -1 && errno == EINTR);
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate return (r == -1 ? 0 : 1);
86*0Sstevel@tonic-gate }
87