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 (INLUDING, 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 31BSDCFG_SHARE="/usr/share/bsdconfig" 32. $BSDCFG_SHARE/common.subr || exit 1 33f_dprintf "%s: loading includes..." media/common.subr 34f_include $BSDCFG_SHARE/device.subr 35f_include $BSDCFG_SHARE/media/any.subr 36f_include $BSDCFG_SHARE/struct.subr 37 38############################################################ GLOBALS 39 40# 41# Where to mount media 42# 43MOUNTPOINT=/dist 44 45############################################################ FUNCTIONS 46 47# f_media_open 48# 49# Returms success if able to initialize the media device. 50# 51f_media_open() 52{ 53 f_dprintf "f_media_open: Verifying and initiliazing media device" 54 { # Verify and initialize device media if-defined 55 f_struct device_media && 56 f_media_verify && 57 f_device_init media 58 } || return $FAILURE 59} 60 61# f_media_close 62# 63# Shuts down the media device, see f_device_shutdown() from device.subr for 64# more details. 65# 66f_media_close() 67{ 68 f_dprintf "f_media_close: Shutting down media device" 69 f_struct device_media && 70 f_device_shutdown media 71 f_struct_free device_media 72} 73 74# f_media_verify 75# 76# Returns success if the media device is available, and if not, prompts the 77# user to select a media type. See f_media_get_type() from media/any.subr for 78# more details. 79# 80f_media_verify() 81{ 82 f_dprintf "f_media_verify: Verifying media device" 83 f_struct device_media || f_media_get_type 84} 85 86# f_media_generic_get $base $file [$probe_only] 87# 88# A generic open which follows a well-known "path" of places to look. If 89# $probe_only is present and non-NULL, returns success if $file exists. 90# 91f_media_generic_get() 92{ 93 local base="$1" file="$2" probe_only="$3" 94 95 local fname=f_media_generic_get 96 f_dprintf "%s: base=[%s] files=[%s] probe_only=%s" \ 97 $fname "$base" "$file" "$probe_only" 98 99 local rel path 100 f_getvar $VAR_RELNAME rel 101 for path in \ 102 "$base/$file" \ 103 "$base/FreeBSD/$file" \ 104 "$base/releases/$file" \ 105 "$base/$rel/$file" \ 106 ; do 107 if [ -f "$path" -a -r "$path" ]; then 108 f_dprintf "%s: file exists path=[%s]" $fname "$path" 109 [ "$probe_only" ] && return $SUCCESS 110 cat "$path" 111 return 112 fi 113 done 114 115 path="$base/releases/$rel/$file" # Final path to try 116 if [ -f "$path" -a -r "$path" ]; then 117 f_dprintf "%s: file exists path=[%s]" $fname "$path" 118 [ "$probe_only" ] && return $SUCCESS 119 elif [ "$probe_only" ]; then 120 return $FAILURE 121 fi 122 cat "$base/releases/$rel/$file" # Final path to try 123} 124 125############################################################ MAIN 126 127f_dprintf "%s: Successfully loaded." media/common.subr 128 129fi # ! $_MEDIA_COMMON_SUBR 130