1if [ ! "$_MEDIA_COMMON_SUBR" ]; then _MEDIA_COMMON_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# 28############################################################ INCLUDES 29 30BSDCFG_SHARE="/usr/share/bsdconfig" 31. $BSDCFG_SHARE/common.subr || exit 1 32f_dprintf "%s: loading includes..." media/common.subr 33f_include $BSDCFG_SHARE/device.subr 34f_include $BSDCFG_SHARE/media/any.subr 35f_include $BSDCFG_SHARE/struct.subr 36 37############################################################ GLOBALS 38 39# 40# Where to mount media 41# 42MOUNTPOINT=/dist 43 44# 45# Media probe values to use for `f_media_get_TYPE media $file $PROBE' or 46# `f_device_get device_media $file $PROBE' (where $PROBE is one of the below 47# values). 48# 49PROBE_EXIST=1 50PROBE_SIZE=2 51 52############################################################ FUNCTIONS 53 54# f_media_open 55# 56# Returms success if able to initialize the media device. 57# 58f_media_open() 59{ 60 f_dprintf "f_media_open: Verifying and initiliazing media device" 61 { # Verify and initialize device media if-defined 62 f_struct device_media && 63 f_media_verify && 64 f_device_init device_media 65 } || return $FAILURE 66} 67 68# f_media_close 69# 70# Shuts down the media device, see f_device_shutdown() from device.subr for 71# more details. 72# 73f_media_close() 74{ 75 f_dprintf "f_media_close: Shutting down media device" 76 f_struct device_media && 77 f_device_shutdown device_media 78 f_struct_free device_media 79} 80 81# f_media_verify 82# 83# Returns success if the media device is available, and if not, prompts the 84# user to select a media type. See f_media_get_type() from media/any.subr for 85# more details. 86# 87f_media_verify() 88{ 89 f_dprintf "f_media_verify: Verifying media device" 90 f_struct device_media || f_media_get_type 91} 92 93# f_media_generic_get $base $file [$probe_type] 94# 95# A generic open which follows a well-known "path" of places to look. If 96# $probe_type is present and non-NULL, returns success if $file exists. If 97# $probe_type is equal to $PROBE_SIZE, prints the size of $file in bytes to 98# standard-out. 99# 100f_media_generic_get() 101{ 102 local funcname=f_media_generic_get 103 local base="$1" file="$2" probe_type="$3" 104 105 local fname=f_media_generic_get 106 f_dprintf "%s: base=[%s] files=[%s] probe_type=%s" \ 107 $fname "$base" "$file" "$probe_type" 108 109 local rel path 110 f_getvar $VAR_RELNAME rel 111 for path in \ 112 "$base/$file" \ 113 "$base/FreeBSD/$file" \ 114 "$base/releases/$file" \ 115 "$base/$rel/$file" \ 116 ; do 117 if [ -f "$path" -a -r "$path" ]; then 118 f_dprintf "%s: file exists path=[%s]" $fname "$path" 119 if [ "$probe_type" = "$PROBE_SIZE" ]; then 120 local size 121 f_eval_catch -dk size $funcname stat \ 122 'stat -f %%z "%s"' "$path" || size=-1 123 f_isinteger "$size" || size=-1 124 echo $size 125 fi 126 [ "$probe_type" ] && return $SUCCESS 127 cat "$path" 128 return $? 129 fi 130 done 131 132 path="$base/releases/$rel/$file" # Final path to try 133 if [ -f "$path" -a -r "$path" ]; then 134 f_dprintf "%s: file exists path=[%s]" $fname "$path" 135 if [ "$probe_type" = "$PROBE_SIZE" ]; then 136 local size 137 f_eval_catch -dk size $funcname stat \ 138 'stat -f %%z "%s"' "$path" || size=-1 139 f_isinteger "$size" || size=-1 140 echo $size 141 fi 142 [ "$probe_type" ] && return $SUCCESS 143 elif [ "$probe_type" ]; then 144 [ "$probe_type" = "$PROBE_SIZE" ] && echo "-1" 145 return $FAILURE 146 fi 147 cat "$base/releases/$rel/$file" # Final path to try 148} 149 150############################################################ MAIN 151 152f_dprintf "%s: Successfully loaded." media/common.subr 153 154fi # ! $_MEDIA_COMMON_SUBR 155