1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2017 Kyle J. Kneitinger <kyle@kneit.in>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 #include "be.h"
30 #include "be_impl.h"
31
32 /*
33 * Usage
34 */
35 int
libbe_errno(libbe_handle_t * lbh)36 libbe_errno(libbe_handle_t *lbh)
37 {
38
39 return (lbh->error);
40 }
41
42
43 const char *
libbe_error_description(libbe_handle_t * lbh)44 libbe_error_description(libbe_handle_t *lbh)
45 {
46
47 switch (lbh->error) {
48 case BE_ERR_INVALIDNAME:
49 return ("invalid boot environment name");
50
51 case BE_ERR_EXISTS:
52 return ("boot environment name already taken");
53
54 case BE_ERR_NOENT:
55 return ("specified boot environment does not exist");
56
57 case BE_ERR_PERMS:
58 return ("insufficient permissions");
59
60 case BE_ERR_DESTROYACT:
61 return ("cannot destroy active boot environment");
62
63 case BE_ERR_DESTROYMNT:
64 return ("cannot destroy mounted boot env unless forced");
65
66 case BE_ERR_BADPATH:
67 return ("path not suitable for operation");
68
69 case BE_ERR_PATHBUSY:
70 return ("specified path is busy");
71
72 case BE_ERR_PATHLEN:
73 return ("provided path name exceeds maximum length limit");
74
75 case BE_ERR_BADMOUNT:
76 return ("mountpoint is not \"/\"");
77
78 case BE_ERR_NOORIGIN:
79 return ("could not open snapshot's origin");
80
81 case BE_ERR_MOUNTED:
82 return ("boot environment is already mounted");
83
84 case BE_ERR_NOMOUNT:
85 return ("boot environment is not mounted");
86
87 case BE_ERR_ZFSOPEN:
88 return ("calling zfs_open() failed");
89
90 case BE_ERR_ZFSCLONE:
91 return ("error when calling zfs_clone() to create boot env");
92
93 case BE_ERR_IO:
94 return ("input/output error");
95
96 case BE_ERR_NOPOOL:
97 return ("operation not supported on this pool");
98
99 case BE_ERR_NOMEM:
100 return ("insufficient memory");
101
102 case BE_ERR_UNKNOWN:
103 return ("unknown error");
104
105 case BE_ERR_INVORIGIN:
106 return ("invalid origin");
107
108 case BE_ERR_HASCLONES:
109 return ("snapshot has clones");
110
111 default:
112 assert(lbh->error == BE_ERR_SUCCESS);
113 return ("no error");
114 }
115 }
116
117
118 void
libbe_print_on_error(libbe_handle_t * lbh,bool val)119 libbe_print_on_error(libbe_handle_t *lbh, bool val)
120 {
121
122 lbh->print_on_err = val;
123 libzfs_print_on_error(lbh->lzh, val);
124 }
125
126
127 int
set_error(libbe_handle_t * lbh,be_error_t err)128 set_error(libbe_handle_t *lbh, be_error_t err)
129 {
130
131 lbh->error = err;
132 if (lbh->print_on_err && (err != BE_ERR_SUCCESS))
133 fprintf(stderr, "%s\n", libbe_error_description(lbh));
134
135 return (err);
136 }
137