floppy.subr revision 272461
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: releng/10.1/usr.sbin/bsdconfig/share/media/floppy.subr 266290 2014-05-17 03:28:43Z 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 f_count ndevs $devs 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 -eq 1 ]; then 66 f_struct_copy $devs device_media 67 else 68 local dev 69 local title="$msg_choose_a_floppy_drive" 70 local prompt="$msg_please_select_a_floppy_drive" 71 local hline= 72 73 dev=$( f_device_menu \ 74 "$title" "$prompt" "$hline" $DEVICE_TYPE_FLOPPY \ 75 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD ) || 76 return $FAILURE 77 78 f_struct_copy "$dev" device_media 79 fi 80 81 f_struct device_media && 82 device_media unset private 83 84 f_struct device_media || return $FAILURE 85} 86 87# f_media_init_floppy $device 88# 89# Initializes the Floppy media device. Returns success if able to mount the 90# Floppy disk device using either mount_msdosfs(8) or mount(8) (tried in that 91# order). 92# 93f_media_init_floppy() 94{ 95 local funcname=f_media_init_floppy 96 local dev="$1" devname err 97 98 $dev get devname devname || return $FAILURE 99 f_dprintf "Init floppy called for %s distribution. devname=[%s]" \ 100 "${FLOPPY_DISTWANTED:-some}" "$devname" 101 102 if [ "$FLOPPY_MOUNTED" ]; then 103 f_dprintf "Floppy device already mounted." 104 return $SUCCESS 105 fi 106 107 local mp 108 $dev get private mp 109 if [ ! -e "${mp:=$MOUNTPOINT}" ] && ! f_quietly mkdir -p "$mp"; then 110 f_show_msg "$msg_unable_to_make_directory_mountpoint" \ 111 "$mp" "$devname" 112 return $FAILURE 113 fi 114 115 if f_interactive; then 116 local desc 117 $dev get desc desc 118 if [ "$FLOPPY_DISTWANTED" ]; then 119 f_show_msg "$msg_please_insert_floppy_in_drive" "$desc" 120 else 121 f_show_msg "$msg_please_insert_floppy_containing" \ 122 "$FLOPPY_DISTWANTED" "$desc" 123 fi 124 fi 125 126 if ! { 127 f_eval_catch -dk err $funcname mount_msdosfs \ 128 'mount_msdosfs -o ro -m 0777 -u 0 -g 0 "%s" "%s"' \ 129 "$devname" "$mp" || 130 f_eval_catch -dk err $funcname mount \ 131 'mount -o ro "%s" "%s"' "$devname" "$mp" 132 }; then 133 err="${err#mount: }"; err="${err#*: }" 134 local name 135 $dev get name name 136 f_show_msg "$msg_error_mounting_floppy_device" \ 137 "$name" "$devname" "$mp" "$err" 138 return $FAILURE 139 fi 140 FLOPPY_MOUNTED=1 141 FLOPPY_DISTWANTED= 142 return $SUCCESS 143} 144 145# f_media_get_floppy $device $file [$probe_type] 146# 147# Returns data from $file on a mounted Floppy disk device. Similar to cat(1). 148# If $probe_type is present and non-NULL, limits retries to zero and returns 149# success if $file exists. If $probe_type is equal to $PROBE_SIZE, prints the 150# size of $file in bytes to standard-out. 151# 152f_media_get_floppy() 153{ 154 local funcname=f_media_get_floppy 155 local dev="$1" file="$2" probe_type="$3" 156 local name 157 158 $dev get name name 159 f_dprintf "f_media_get_floppy: dev=[%s] file=[%s] probe_type=%s" \ 160 "$name" "$file" "$probe_type" 161 162 # 163 # floppies don't use f_media_generic_get() because it's too expensive 164 # to speculatively open files on a floppy disk. Make user get it 165 # right or give up with floppies. 166 # 167 local mp 168 $dev get private mp 169 local fp="${mp:=$MOUNTPOINT}/$file" 170 if ! [ -f "$fp" -a -r "$fp" ]; then 171 local nretries=4 172 [ "$probe_type" = "$PROBE_SIZE" ] && echo "-1" 173 [ "$probe_type" ] && return $FAILURE 174 while ! [ -f "$fp" -a -r "$fp" ]; do 175 if [ $nretries -eq 0 ]; then 176 f_show_msg "$msg_failed_to_get_floppy_file" \ 177 "$fp" 178 [ "$probe_type" = "$PROBE_SIZE" ] && echo "-1" 179 return $FAILURE 180 fi 181 FLOPPY_DISTWANTED="$fp" 182 f_media_shutdown_floppy "$dev" 183 f_media_init_floppy "$dev" || return $FAILURE 184 nretries=$(( $nretries - 1 )) 185 done 186 fi 187 # 188 # If we reach here, $file exists 189 # 190 if [ "$probe_type" = "$PROBE_SIZE" ]; then 191 local size 192 f_eval_catch -dk size $funcname stat 'stat -f %%z "%s"' "$fp" 193 f_isinteger "$size" || size=-1 194 echo "$size" 195 fi 196 [ "$probe_type" ] && return $SUCCESS 197 cat "$fp" 198} 199 200# f_media_shutdown_floppy $device 201# 202# Shuts down the Floppy disk device using umount(8). Return status should be 203# ignored. 204# 205f_media_shutdown_floppy() 206{ 207 local funcname=f_media_shutdown_floppy 208 local dev="$1" err mp 209 210 [ "$FLOPPY_MOUNTED" ] || return $FAILURE 211 212 $dev get private mp 213 if f_eval_catch -d $funcname umount \ 214 'umount -f "%s"' "${mp:=$MOUNTPOINT}" 215 then 216 FLOPPY_MOUNTED= 217 if f_interactive && [ "$_systemState" != "fixit" ]; then 218 local desc 219 $dev get desc desc 220 f_show_msg "$msg_you_may_remove_the_floppy" "$desc" 221 fi 222 fi 223} 224 225############################################################ MAIN 226 227f_dprintf "%s: Successfully loaded." media/floppy.subr 228 229fi # ! $_MEDIA_FLOPPY_SUBR 230