floppy.subr revision 252987
1if [ ! "$_MEDIA_FLOPPY_SUBR" ]; then _MEDIA_FLOPPY_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: head/usr.sbin/bsdconfig/share/media/floppy.subr 252987 2013-07-07 18:51:44Z dteske $ 28# 29############################################################ INCLUDES 30 31BSDCFG_SHARE="/usr/share/bsdconfig" 32. $BSDCFG_SHARE/common.subr || exit 1 33f_dprintf "%s: loading includes..." media/floppy.subr 34f_include $BSDCFG_SHARE/device.subr 35f_include $BSDCFG_SHARE/dialog.subr 36f_include $BSDCFG_SHARE/media/common.subr 37f_include $BSDCFG_SHARE/struct.subr 38f_include $BSDCFG_SHARE/variable.subr 39 40BSDCFG_LIBE="/usr/libexec/bsdconfig" 41f_include_lang $BSDCFG_LIBE/include/messages.subr 42 43############################################################ GLOBALS 44 45FLOPPY_MOUNTED= 46FLOPPY_DISTWANTED= 47 48############################################################ FUNCTIONS 49 50# f_media_set_floppy 51# 52# Return success if we both found and set the media type to be a floppy. 53# 54f_media_set_floppy() 55{ 56 f_media_close 57 58 local devs ndevs 59 f_device_find "" $DEVICE_TYPE_FLOPPY devs 60 ndevs=$( set -- $devs; echo $# ) 61 62 if [ ${ndevs:=0} -eq 0 ]; then 63 f_interactive && f_show_msg "$msg_no_floppy_devices_found" 64 return $FAILURE 65 elif [ $ndevs -gt 1 ]; then 66 local title="$msg_choose_a_floppy_drive" 67 local prompt="$msg_please_select_a_floppy_drive" 68 local hline="" 69 70 local dev retval 71 dev=$( f_device_menu \ 72 "$title" "$prompt" "$hline" $DEVICE_TYPE_FLOPPY \ 73 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD ) 74 retval=$? 75 [ "$dev" ] || return $FAILURE 76 77 f_device_find "$dev" $DEVICE_TYPE_FLOPPY devs 78 [ "$devs" ] || return $FAILURE 79 dev="${devs%%[$IFS]*}" 80 81 f_struct_copy device_$dev device_media 82 [ $retval -eq $SUCCESS ] || return $FAILURE 83 else 84 f_struct_copy device_$devs device_media 85 fi 86 87 f_struct device_media && 88 device_media unset private 89 90 f_struct device_media || return $FAILURE 91} 92 93# f_media_init_floppy $device 94# 95# Initializes the Floppy media device. Returns success if able to mount the 96# Floppy disk device using either mount_msdosfs(8) or mount(8) (tried in that 97# order). 98# 99f_media_init_floppy() 100{ 101 local dev="$1" devname err 102 103 device_$dev get devname devname || return $FAILURE 104 f_dprintf "Init floppy called for %s distribution. devname=[%s]" \ 105 "${FLOPPY_DISTWANTED:-some}" "$devname" 106 107 if [ "$FLOPPY_MOUNTED" ]; then 108 f_dprintf "Floppy device already mounted." 109 return $SUCCESS 110 fi 111 112 local mp 113 device_$dev get private mp 114 if [ ! -e "${mp:=$MOUNTPOINT}" ] && ! f_quietly mkdir -p "$mp"; then 115 f_show_msg "$msg_unable_to_make_directory_mountpoint" \ 116 "$mp" "$devname" 117 return $FAILURE 118 fi 119 120 if f_interactive; then 121 local desc 122 device_$dev get desc desc 123 if [ "$FLOPPY_DISTWANTED" ]; then 124 f_show_msg "$msg_please_insert_floppy_in_drive" "$desc" 125 else 126 f_show_msg "$msg_please_insert_floppy_containing" \ 127 "$FLOPPY_DISTWANTED" "$desc" 128 fi 129 fi 130 131 if ! { 132 f_quietly mount_msdosfs -o ro -m 0777 -u 0 -g 0 "$devname" "$mp" || 133 err=$( mount -o ro "$devname" "$mp" 2>&1 ) 134 }; then 135 err="${err#mount: }"; err="${err#*: }" 136 local name 137 device_$dev get name name 138 f_show_msg "$msg_error_mounting_floppy_device" \ 139 "$name" "$devname" "$mp" "$err" 140 return $FAILURE 141 fi 142 FLOPPY_MOUNTED=1 143 FLOPPY_DISTWANTED= 144 return $SUCCESS 145} 146 147# f_media_get_floppy $device $file [$probe_only] 148# 149# Returns data from $file on a mounted Floppy disk device. Similar to cat(1). 150# If $probe_only is present and non-null, limits retries to zero. 151# 152f_media_get_floppy() 153{ 154 local dev="$1" file="$2" probe_only="$3" 155 156 f_dprintf "f_media_get_floppy: dev=[%s] file=[%s] probe_only=%s" \ 157 "$dev" "$file" "$probe_only" 158 159 # 160 # floppies don't use f_media_generic_get() because it's too expensive 161 # to speculatively open files on a floppy disk. Make user get it 162 # right or give up with floppies. 163 # 164 local mp 165 device_$dev get private mp 166 local fp="${mp:=$MOUNTPOINT}/$file" 167 if ! [ -f "$fp" -a -r "$fp" ]; then 168 local nretries=4 169 [ "$probe_only" ] && return $FAILURE 170 while ! [ -f "$fp" -a -r "$fp" ]; do 171 if [ $nretries -eq 0 ]; then 172 f_show_msg "$msg_failed_to_get_floppy_file" \ 173 "$fp" 174 return $FAILURE 175 fi 176 FLOPPY_DISTWANTED="$fp" 177 f_media_shutdown_floppy "$dev" 178 f_media_init_floppy "$dev" || return $FAILURE 179 nretries=$(( $nretries - 1 )) 180 done 181 elif [ "$probe_only" ]; then 182 return $SUCCESS 183 fi 184 cat "$fp" 185} 186 187# f_media_shutdown_floppy $device 188# 189# Shuts down the Floppy disk device using umount(8). Return status should be 190# ignored. 191# 192f_media_shutdown_floppy() 193{ 194 local dev="$1" err mp 195 196 [ "$FLOPPY_MOUNTED" ] || return 197 198 device_$dev get private mp 199 if ! err=$( umount -f "${mp:=$MOUNTPOINT}" 2>&1 ); then 200 err="${err#umount: }"; err="${err#*:}" 201 f_dprintf "Umount of floppy on %s failed: %s" "$mp" "$err" 202 else 203 FLOPPY_MOUNTED= 204 if f_interactive && [ "$_systemState" != "fixit" ]; then 205 local desc 206 device_$dev get desc desc 207 f_show_msg "$msg_you_may_remove_the_floppy" "$desc" 208 fi 209 fi 210} 211 212############################################################ MAIN 213 214f_dprintf "%s: Successfully loaded." media/floppy.subr 215 216fi # ! $_MEDIA_FLOPPY_SUBR 217