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1 if [ ! "$_MEDIA_DIRECTORY_SUBR" ]; then _MEDIA_DIRECTORY_SUBR=1
2 #
3 # Copyright (c) 2012-2013 Devin Teske
4 # All rights reserved.
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 AUTHOR 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 AUTHOR 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 # $FreeBSD$
28 #
29 ############################################################ INCLUDES
30
31 BSDCFG_SHARE="/usr/share/bsdconfig"
32 . $BSDCFG_SHARE/common.subr || exit 1
33 f_dprintf "%s: loading includes..." media/directory.subr
34 f_include $BSDCFG_SHARE/device.subr
35 f_include $BSDCFG_SHARE/dialog.subr
36 f_include $BSDCFG_SHARE/media/common.subr
37 f_include $BSDCFG_SHARE/struct.subr
38 f_include $BSDCFG_SHARE/variable.subr
39
40 BSDCFG_LIBE="/usr/libexec/bsdconfig"
41 f_include_lang $BSDCFG_LIBE/include/messages.subr
42
43 ############################################################ GLOBALS
44
45 DIRECTORY_CHECKED=
46
47 ############################################################ FUNCTIONS
48
49 # f_media_set_directory
50 #
51 # Return success if we both found and set the media type to be a local
52 # directory.
53 #
54 # Variables from variable.subr that can be used to script user input:
55 #
56 #       VAR_DIRECTORY_PATH
57 #               Path to an existing directory containing the FreeBSD
58 #               distribution files.
59 #
60 f_media_set_directory()
61 {
62         local path
63
64         f_media_close
65
66         f_variable_get_value $VAR_DIRECTORY_PATH \
67                 "$msg_enter_a_fully_qualified_pathname_for_the_directory"
68         f_getvar $VAR_DIRECTORY_PATH path
69         [ "$path" ] || return $FAILURE
70
71         f_struct_new DEVICE device_directory
72         device_directory set name     "$path"
73         device_directory set get      f_media_get_directory
74         device_directory set init     f_media_init_directory
75         device_directory set shutdown f_media_shutdown_directory
76         device_directory set private  "$path"
77
78         f_struct_copy device_directory device_media
79         f_struct_free device_directory
80
81         f_struct device_media || return $FAILURE
82 }
83
84 # f_media_init_directory $device
85 #
86 # Initializes the Directory media device. Returns success if the directory path
87 # both exists and is a directory.
88 #
89 f_media_init_directory()
90 {
91         local dev="$1" path
92
93         device_$dev get private path || return $FAILURE
94         f_dprintf "Init routine called for Directory device. path=[%s]" \
95                   "$path"
96
97         # Track whether we've been through here before (for remote filesystems
98         # mounted in the directory path, not repeating these queries saves us
99         # valuable time for slow/uncooperative links).
100         if [ "$DIRECTORY_CHECKED" ]; then
101                 f_dprintf "Directory device already checked."
102                 return $SUCCESS
103         fi
104
105         if [ ! -e "$path" ]; then
106                 f_show_msg "$msg_no_such_file_or_directory" \
107                            "f_media_init_directory" "$path"
108                 return $FAILURE
109         elif [ ! -d "$path" ]; then
110                 f_show_msg "$msg_not_a_directory" \
111                            "f_media_init_directory" "$path"
112                 return $FAILURE
113         fi
114         DIRECTORY_CHECKED=1
115         return $SUCCESS
116 }
117
118 # f_media_get_directory $device $file [$probe_type]
119 #
120 # Returns data from $file in the existing/current filesystem. Similar to
121 # cat(1). If $probe_type is present and non-NULL, returns success if $file
122 # exists. If $probe_type is equal to $PROBE_SIZE, prints the size of $file in
123 # bytes to standard-out.
124 #
125 f_media_get_directory()
126 {
127         local dev="$1" file="$2" probe_type="$3" path
128
129         f_dprintf "f_media_get_directory: dev=[%s] file=[%s] probe_type=%s" \
130                   "$dev" "$file" "$probe_type"
131
132         device_$dev get private path
133         f_media_generic_get "$path" "$file" "$probe_type"
134 }
135
136 # f_media_shutdown_directory $device
137 #
138 # Shuts down the Directory device. Return status should be ignored.
139 #
140 f_media_shutdown_directory()
141 {
142         DIRECTORY_CHECKED=
143 }
144
145 ############################################################ MAIN
146
147 f_dprintf "%s: Successfully loaded." media/directory.subr
148
149 fi # ! $_MEDIA_DIRECTORY_SUBR