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 * misc.c - miscellaneous and utility functions
31*0Sstevel@tonic-gate */
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate #include <sys/stat.h>
34*0Sstevel@tonic-gate #include <sys/statvfs.h>
35*0Sstevel@tonic-gate #include <sys/types.h>
36*0Sstevel@tonic-gate #include <ctype.h>
37*0Sstevel@tonic-gate #include <errno.h>
38*0Sstevel@tonic-gate #include <fcntl.h>
39*0Sstevel@tonic-gate #include <libscf_priv.h>
40*0Sstevel@tonic-gate #include <libuutil.h>
41*0Sstevel@tonic-gate #include <stdio.h>
42*0Sstevel@tonic-gate #include <stdlib.h>
43*0Sstevel@tonic-gate #include <string.h>
44*0Sstevel@tonic-gate #include <strings.h>
45*0Sstevel@tonic-gate #include <syslog.h>
46*0Sstevel@tonic-gate #include <unistd.h>
47*0Sstevel@tonic-gate
48*0Sstevel@tonic-gate #include "startd.h"
49*0Sstevel@tonic-gate
50*0Sstevel@tonic-gate void
startd_close(int fd)51*0Sstevel@tonic-gate startd_close(int fd)
52*0Sstevel@tonic-gate {
53*0Sstevel@tonic-gate if (close(fd) == 0)
54*0Sstevel@tonic-gate return;
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate log_error(LOG_WARNING, "close(%d) failed: %s\n", fd, strerror(errno));
57*0Sstevel@tonic-gate abort();
58*0Sstevel@tonic-gate }
59*0Sstevel@tonic-gate
60*0Sstevel@tonic-gate void
startd_fclose(FILE * fp)61*0Sstevel@tonic-gate startd_fclose(FILE *fp)
62*0Sstevel@tonic-gate {
63*0Sstevel@tonic-gate if (fclose(fp) == 0)
64*0Sstevel@tonic-gate return;
65*0Sstevel@tonic-gate
66*0Sstevel@tonic-gate log_error(LOG_WARNING, "fclose() failed\n");
67*0Sstevel@tonic-gate abort();
68*0Sstevel@tonic-gate }
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate /*
71*0Sstevel@tonic-gate * Canonify fmri. On success, sets *retp to a string which should be freed
72*0Sstevel@tonic-gate * with startd_free( , max_scf_fmri_size) and returns 0. On failure returns
73*0Sstevel@tonic-gate * EINVAL.
74*0Sstevel@tonic-gate *
75*0Sstevel@tonic-gate * If 'isinstance' is non-zero, then return EINVAL if the FMRI specificies
76*0Sstevel@tonic-gate * anything other than an instance.
77*0Sstevel@tonic-gate */
78*0Sstevel@tonic-gate int
fmri_canonify(const char * fmri,char ** retp,boolean_t isinstance)79*0Sstevel@tonic-gate fmri_canonify(const char *fmri, char **retp, boolean_t isinstance)
80*0Sstevel@tonic-gate {
81*0Sstevel@tonic-gate char *cf;
82*0Sstevel@tonic-gate
83*0Sstevel@tonic-gate cf = startd_alloc(max_scf_fmri_size);
84*0Sstevel@tonic-gate
85*0Sstevel@tonic-gate if (isinstance) {
86*0Sstevel@tonic-gate const char *instance, *pg;
87*0Sstevel@tonic-gate
88*0Sstevel@tonic-gate /*
89*0Sstevel@tonic-gate * Verify that this fmri specifies an instance, using
90*0Sstevel@tonic-gate * scf_parse_svc_fmri().
91*0Sstevel@tonic-gate */
92*0Sstevel@tonic-gate if (strlcpy(cf, fmri, max_scf_fmri_size) >= max_scf_fmri_size ||
93*0Sstevel@tonic-gate scf_parse_svc_fmri(cf, NULL, NULL, &instance, &pg,
94*0Sstevel@tonic-gate NULL) != 0) {
95*0Sstevel@tonic-gate startd_free(cf, max_scf_fmri_size);
96*0Sstevel@tonic-gate return (EINVAL);
97*0Sstevel@tonic-gate }
98*0Sstevel@tonic-gate
99*0Sstevel@tonic-gate if (instance == NULL || pg != NULL) {
100*0Sstevel@tonic-gate startd_free(cf, max_scf_fmri_size);
101*0Sstevel@tonic-gate return (EINVAL);
102*0Sstevel@tonic-gate }
103*0Sstevel@tonic-gate }
104*0Sstevel@tonic-gate
105*0Sstevel@tonic-gate if (scf_canonify_fmri(fmri, cf, max_scf_fmri_size) < 0) {
106*0Sstevel@tonic-gate startd_free(cf, max_scf_fmri_size);
107*0Sstevel@tonic-gate return (EINVAL);
108*0Sstevel@tonic-gate }
109*0Sstevel@tonic-gate
110*0Sstevel@tonic-gate *retp = cf;
111*0Sstevel@tonic-gate return (0);
112*0Sstevel@tonic-gate }
113*0Sstevel@tonic-gate
114*0Sstevel@tonic-gate /*
115*0Sstevel@tonic-gate * int fs_is_read_only(char *, ulong_t *)
116*0Sstevel@tonic-gate * Returns 1 if the given path is that of a filesystem with the ST_RDONLY flag
117*0Sstevel@tonic-gate * set. 0 if ST_RDONLY is unset. -1 if the statvfs(2) call failed. If the
118*0Sstevel@tonic-gate * second parameter is non-NULL, the fsid for the requested filesystem is
119*0Sstevel@tonic-gate * written to the given address on success.
120*0Sstevel@tonic-gate */
121*0Sstevel@tonic-gate int
fs_is_read_only(char * path,ulong_t * fsidp)122*0Sstevel@tonic-gate fs_is_read_only(char *path, ulong_t *fsidp)
123*0Sstevel@tonic-gate {
124*0Sstevel@tonic-gate int err;
125*0Sstevel@tonic-gate struct statvfs sfb;
126*0Sstevel@tonic-gate
127*0Sstevel@tonic-gate do {
128*0Sstevel@tonic-gate err = statvfs(path, &sfb);
129*0Sstevel@tonic-gate } while (err == -1 && errno == EINTR);
130*0Sstevel@tonic-gate
131*0Sstevel@tonic-gate if (err)
132*0Sstevel@tonic-gate return (-1);
133*0Sstevel@tonic-gate
134*0Sstevel@tonic-gate if (fsidp != NULL)
135*0Sstevel@tonic-gate *fsidp = sfb.f_fsid;
136*0Sstevel@tonic-gate
137*0Sstevel@tonic-gate if (sfb.f_flag & ST_RDONLY)
138*0Sstevel@tonic-gate return (1);
139*0Sstevel@tonic-gate
140*0Sstevel@tonic-gate return (0);
141*0Sstevel@tonic-gate }
142*0Sstevel@tonic-gate
143*0Sstevel@tonic-gate /*
144*0Sstevel@tonic-gate * int fs_remount(char *)
145*0Sstevel@tonic-gate * Attempt to remount the given filesystem read-write, so that we can unlock
146*0Sstevel@tonic-gate * the repository (or handle other similar failures).
147*0Sstevel@tonic-gate *
148*0Sstevel@tonic-gate * Returns 0 on success, -1 on failure.
149*0Sstevel@tonic-gate */
150*0Sstevel@tonic-gate int
fs_remount(char * path)151*0Sstevel@tonic-gate fs_remount(char *path)
152*0Sstevel@tonic-gate {
153*0Sstevel@tonic-gate if (fork_mount(path, "remount,rw"))
154*0Sstevel@tonic-gate return (-1);
155*0Sstevel@tonic-gate
156*0Sstevel@tonic-gate return (0);
157*0Sstevel@tonic-gate }
158*0Sstevel@tonic-gate
159*0Sstevel@tonic-gate /*
160*0Sstevel@tonic-gate * void xstr_sanitize(char *s)
161*0Sstevel@tonic-gate * In-place transform any non-alphanumeric characters (or '_') to '_'
162*0Sstevel@tonic-gate * characters.
163*0Sstevel@tonic-gate */
164*0Sstevel@tonic-gate void
xstr_sanitize(char * s)165*0Sstevel@tonic-gate xstr_sanitize(char *s)
166*0Sstevel@tonic-gate {
167*0Sstevel@tonic-gate for (; *s != '\0'; s++)
168*0Sstevel@tonic-gate if (!isalnum(*s) && *s != '_')
169*0Sstevel@tonic-gate *s = '_';
170*0Sstevel@tonic-gate }
171