| 1 | #@file ogfunctions.lib |
|---|
| 2 | #@brief Librería o clase para la generación del 1erFS |
|---|
| 3 | #@class client |
|---|
| 4 | #@brief Funciones para la generación del primers sistema (initrd) |
|---|
| 5 | #@version 0.91 |
|---|
| 6 | #@warning License: GNU GPLv3+ |
|---|
| 7 | |
|---|
| 8 | |
|---|
| 9 | |
|---|
| 10 | |
|---|
| 11 | ogExportKernelParameters () |
|---|
| 12 | { |
|---|
| 13 | GLOBAL="cat /proc/cmdline" |
|---|
| 14 | for i in `${GLOBAL}` |
|---|
| 15 | do |
|---|
| 16 | echo $i | grep "=" > /dev/null && export $i |
|---|
| 17 | done |
|---|
| 18 | return 0 |
|---|
| 19 | } |
|---|
| 20 | |
|---|
| 21 | ogExportVarEnvironment () |
|---|
| 22 | { |
|---|
| 23 | export CFGINITRD="/tmp/initrd.cfg" |
|---|
| 24 | echo "puntos de accesos al servidor ogprotocol=nfs" >> $CFGINITRD |
|---|
| 25 | export NFSROOTBOOT="/var/lib/tftpboot" && echo "NFSROOTBOOT=$NFSROOTBOOT" >> $CFGINITRD |
|---|
| 26 | export NFSCLIENTDIR="/opt/opengnsys/client" && echo "NFSCLIENDIR=$NFSCLIENTDIR" >> $CFGINITRD |
|---|
| 27 | export NFSLOGDIR="/opt/opengnsys/log/clients" && echo "NFSLOGDIR=$NFSLOGDIR" >> $CFGINITRD |
|---|
| 28 | export NFSIMGDIR="/opt/opengnsys/images" && echo "NFSIMGDIR=$NFSIMGDIR" >> $CFGINITRD |
|---|
| 29 | echo "puntos de accesos al servidor ogprotocol=smb" >> $CFGINITRD |
|---|
| 30 | export SMBROOTBOOT="tftpboot" && echo "SMBROOTBOOT=$SMBROOTBOOT" >> $CFGINITRD |
|---|
| 31 | export SMBCLIENTDIR="ogclient" && echo "SMBCLIENTDIR=$SMBCLIENTDIR" >> $CFGINITRD |
|---|
| 32 | export SMBLOGDIR="oglog" && echo "SMBLOGDIR=$SMBLOGDIR" >> $CFGINITRD |
|---|
| 33 | export SMBIMGDIR="ogimages" && echo "SMBIMGDIR=$SMBIMGDIR" >> $CFGINITRD |
|---|
| 34 | |
|---|
| 35 | echo "puntos de montaje local para los contenedores" >> $CFGINITRD |
|---|
| 36 | export LOCALROOTBOOT="/opt/og2fs/tftpboot" && echo "LOCALROOTBOOT=$LOCALROOTBOOT" >> $CFGINITRD |
|---|
| 37 | export LOCALCLIENTDIR="/opt/opengnsys" && echo "LOCALCLIENTDIR=$LOCALCLIENTDIR" >> $CFGINITRD |
|---|
| 38 | export LOCALLOGDIR="/opt/opengnsys/log" && echo "LOCALLOGDIR=$LOCALLOGDIR" >> $CFGINITRD |
|---|
| 39 | export LOCALIMGDIR="/opt/opengnsys/images" && echo "LOCALIMGDIR=$LOCALIMGDIR" >> $CFGINITRD |
|---|
| 40 | |
|---|
| 41 | echo "puntos de montajes para realizar la integración unionfs entre el initrd y el sistema root" >> $CFGINITRD |
|---|
| 42 | #punto de montaje donde se accede al 2nd FS mediante loop |
|---|
| 43 | export LOCALROOTIMG="/opt/og2fs/2ndfs" && echo "LOCALROOTIMG=$LOCALROOTIMG" >> $CFGINITRD |
|---|
| 44 | #punto de montaje para unionfs |
|---|
| 45 | export LOCALROOTRAM="/opt/og2fs/1stfs" && echo "LOCALROOTRAM=$LOCALROOTRAM" >> $CFGINITRD |
|---|
| 46 | #punto de union entreo LOCALROOTIMG y LOCALROOTRAM |
|---|
| 47 | export LOCALROOTUNION="/opt/og2fs/unionfs" && echo "LOCALROOTUNION=$LOCALROOTUNION" >> $CFGINITRD |
|---|
| 48 | ##INFORMACION DE OTRAS VARIABLES OBTENDIAS EN OTRAS FUNCIONES. |
|---|
| 49 | #ogGetROOTSERVER() ip del servidor pxe, valor obtenido automaticamente desde dhcpd. |
|---|
| 50 | #IPV4DDR |
|---|
| 51 | #IPV4BROADCAST |
|---|
| 52 | #IPV4NETMASK |
|---|
| 53 | #IPV4GATEWAY |
|---|
| 54 | #DNS0 DNS1 |
|---|
| 55 | #HOSTNAME |
|---|
| 56 | #ROOTSERVER #ip del servidor pxe que ha servido el kernel |
|---|
| 57 | #REPOSERVER=ogrepo -> ogConectROOTSERVER() ip del servidor de images para separar serviicios. |
|---|
| 58 | return 0 |
|---|
| 59 | } |
|---|
| 60 | |
|---|
| 61 | ogConfigureRamfs () |
|---|
| 62 | { |
|---|
| 63 | mkdir -p $LOCALROOTBOOT |
|---|
| 64 | mkdir -p $LOCALROOTIMG |
|---|
| 65 | mkdir -p $LOCALROOTRAM |
|---|
| 66 | mkdir -p $LOCALROOTUNION |
|---|
| 67 | } |
|---|
| 68 | |
|---|
| 69 | ogLoadNetModule () |
|---|
| 70 | { |
|---|
| 71 | #cargando netmodule |
|---|
| 72 | if [ -n "$ognetmodule" ] |
|---|
| 73 | then |
|---|
| 74 | echo "Cargando modulo de red $netmodule" |
|---|
| 75 | insmod `find /lib/modules/ -name ${netmodule}*` |
|---|
| 76 | fi |
|---|
| 77 | } |
|---|
| 78 | |
|---|
| 79 | |
|---|
| 80 | ogPostConfigureFS() |
|---|
| 81 | { |
|---|
| 82 | # configuramos el /etc/hostname. |
|---|
| 83 | echo $HOSTNAME > /etc/hostname |
|---|
| 84 | |
|---|
| 85 | #configuramos el /etc/hosts |
|---|
| 86 | echo "127.0.0.1 localhost" > /etc/hosts |
|---|
| 87 | echo "$IPV4ADDR $HOSTNAME" >> /etc/hosts |
|---|
| 88 | |
|---|
| 89 | #configuramos el host.conf |
|---|
| 90 | echo "order hosts,bind" > /etc/host.conf |
|---|
| 91 | echo "multi on" >> /etc/host.conf |
|---|
| 92 | |
|---|
| 93 | # configuramos el /etc/networks |
|---|
| 94 | #read -e NETIP NETDEFAULT <<<$(route -n | grep eth0 | awk -F" " '{print $1}') |
|---|
| 95 | NETIP=$(route -n | grep eth0 | awk -F" " '{print $1}') && NETIP=$(echo $NETIP | cut -f1 -d" ") |
|---|
| 96 | echo "default 0.0.0.0" > /etc/networks |
|---|
| 97 | echo "loopback 127.0.0.0" >> /etc/networks |
|---|
| 98 | echo "link-local 169.254.0.0" >> /etc/networks |
|---|
| 99 | echo "localnet $NETIP" >> /etc/networks |
|---|
| 100 | #route |
|---|
| 101 | } |
|---|
| 102 | |
|---|
| 103 | |
|---|
| 104 | |
|---|
| 105 | |
|---|
| 106 | ogGetROOTSERVER () |
|---|
| 107 | { |
|---|
| 108 | # get nfs root from dhcp |
|---|
| 109 | if [ "x${NFSROOT}" = "xauto" ]; then |
|---|
| 110 | # check if server ip is part of dhcp root-path |
|---|
| 111 | if [ "${ROOTPATH#*:}" = "${ROOTPATH}" ]; then |
|---|
| 112 | NFSROOT=${ROOTSERVER}:${ROOTPATH} |
|---|
| 113 | else |
|---|
| 114 | NFSROOT=${ROOTPATH} |
|---|
| 115 | fi |
|---|
| 116 | |
|---|
| 117 | # nfsroot=[<server-ip>:]<root-dir>[,<nfs-options>] |
|---|
| 118 | elif [ -n "${NFSROOT}" ]; then |
|---|
| 119 | # nfs options are an optional arg |
|---|
| 120 | if [ "${NFSROOT#*,}" != "${NFSROOT}" ]; then |
|---|
| 121 | NFSOPTS="-o ${NFSROOT#*,}" |
|---|
| 122 | fi |
|---|
| 123 | NFSROOT=${NFSROOT%%,*} |
|---|
| 124 | if [ "${NFSROOT#*:}" = "$NFSROOT" ]; then |
|---|
| 125 | NFSROOT=${ROOTSERVER}:${NFSROOT} |
|---|
| 126 | fi |
|---|
| 127 | fi |
|---|
| 128 | export ROOTSERVER |
|---|
| 129 | echo "ROOTSERVER=$ROOTSERVER" >> $CFGINITRD |
|---|
| 130 | return 0 |
|---|
| 131 | } |
|---|
| 132 | |
|---|
| 133 | ogConectROOTSERVER () |
|---|
| 134 | { |
|---|
| 135 | local OPTIONS |
|---|
| 136 | #params a detectar |
|---|
| 137 | if [ $ogrepo ] |
|---|
| 138 | then |
|---|
| 139 | # Validar si la ip es correcta |
|---|
| 140 | ROOTREPO=$ogrepo |
|---|
| 141 | else |
|---|
| 142 | ROOTREPO=$ROOTSERVER |
|---|
| 143 | fi |
|---|
| 144 | |
|---|
| 145 | case "$ogprotocol" in |
|---|
| 146 | cdrom) |
|---|
| 147 | echo "Montar imagen de CD-ROM" |
|---|
| 148 | blkid /dev/s* |
|---|
| 149 | mount -t iso9660 LABEL=ogClient $LOCALROOTBOOT |
|---|
| 150 | ;; |
|---|
| 151 | httfs) |
|---|
| 152 | echo "protocolo httfs aun no soportado" |
|---|
| 153 | ;; |
|---|
| 154 | sshfs) |
|---|
| 155 | echo "protocolo sshfs aun no soportado" |
|---|
| 156 | ;; |
|---|
| 157 | smb) |
|---|
| 158 | echo "Preparando conexión con el Repositorio $ROOTSERVER por $ogprotocol" |
|---|
| 159 | OPTIONS=" -o user=opengnsys,pass=og" |
|---|
| 160 | mount.cifs //${ROOTSERVER}/${SMBCLIENTDIR} $LOCALCLIENTDIR $OPTIONS |
|---|
| 161 | mount.cifs //${ROOTSERVER}/${SMBLOGDIR} $LOCALLOGDIR $OPTIONS |
|---|
| 162 | mount.cifs //${ROOTSERVER}/${SMBROOTBOOT} $LOCALROOTBOOT $OPTIONS |
|---|
| 163 | mount.cifs //${ROOTREPO}/${SMBIMGDIR} $LOCALIMGDIR ${OPTIONS},ro |
|---|
| 164 | ;; |
|---|
| 165 | nfs) |
|---|
| 166 | echo "Preparando conexión con el Repositorio $ROOTSERVER por $ogprotocol" |
|---|
| 167 | nfsmount -o nolock,ro $ROOTSERVER:$NFSCLIENTDIR $LOCALCLIENTDIR |
|---|
| 168 | nfsmount -o nolock $ROOTSERVER:$NFSLOGDIR $LOCALLOGDIR |
|---|
| 169 | nfsmount -o nolock $ROOTSERVER:$NFSROOTBOOT $LOCALROOTBOOT |
|---|
| 170 | nfsmount -o nolock,ro $ROOTREPO:$NFSIMGDIR $LOCALIMGDIR |
|---|
| 171 | ;; |
|---|
| 172 | esac |
|---|
| 173 | } |
|---|
| 174 | |
|---|
| 175 | ogMerge2ndFile() |
|---|
| 176 | { |
|---|
| 177 | if [ -f $LOCALROOTBOOT/ogclient/ogclient.sqfs ] |
|---|
| 178 | then |
|---|
| 179 | cat /proc/mounts > /tmp/mtab.preunion |
|---|
| 180 | if [ "$og2nd" == "img" ] |
|---|
| 181 | then |
|---|
| 182 | #para acceder al img |
|---|
| 183 | losetup /dev/loop0 $LOCALROOTBOOT/ogclient/ogclient.img -o 32256 |
|---|
| 184 | mount /dev/loop0 $LOCALROOTIMG |
|---|
| 185 | else |
|---|
| 186 | ## para acceder al squashfs |
|---|
| 187 | mount $LOCALROOTBOOT/ogclient/ogclient.sqfs $LOCALROOTIMG -t squashfs -o loop |
|---|
| 188 | fi |
|---|
| 189 | for i in etc var lib bin sbin usr root boot; do |
|---|
| 190 | unionmount $i |
|---|
| 191 | done |
|---|
| 192 | cat /tmp/mtab.preunion > /etc/mtab |
|---|
| 193 | else |
|---|
| 194 | echo "Fichero imagen del cliente no encontrado" |
|---|
| 195 | return 1 |
|---|
| 196 | fi |
|---|
| 197 | } |
|---|
| 198 | |
|---|
| 199 | |
|---|
| 200 | unionmount() |
|---|
| 201 | { |
|---|
| 202 | tmpdir=/$1 #dir |
|---|
| 203 | FUSE_OPT="-o default_permissions -o allow_other -o use_ino -o nonempty -o suid" |
|---|
| 204 | UNION_OPT="-o cow -o noinitgroups" |
|---|
| 205 | UBIN="unionfs-fuse" |
|---|
| 206 | #UPATH="/unionfs" |
|---|
| 207 | #LOCALROOTIMG="/opt/og2fs/2ndfs" |
|---|
| 208 | #LOCALROOTRAM="/opt/og2fs/1stfs" #/unionfs/host #punto de montaje para unionfs |
|---|
| 209 | #LOCALROOTUNION=/opt/og2fs/unionfs/" #/unionfs/union #punto de union entreo LOCALROOTIMG y LOCALROOTRAM |
|---|
| 210 | #mkdir -p $LOCALROOTRAM #/unionfs/host |
|---|
| 211 | #mkdir -p $LOCALROOTUNION #/unionfs/union |
|---|
| 212 | mkdir -p $LOCALROOTRAM$tmpdir |
|---|
| 213 | #mount --bind /$tmpdir $LOCALROOTRAM$tmpdir |
|---|
| 214 | U1STDIR="${LOCALROOTRAM}${tmpdir}=RW" |
|---|
| 215 | U2NDDIR="${LOCALROOTIMG}${tmpdir}=RO" |
|---|
| 216 | UNIONDIR=$LOCALROOTUNION$tmpdir |
|---|
| 217 | mkdir -p $UNIONDIR |
|---|
| 218 | $UBIN $FUSE_OPT $UNION_OPT ${U1STDIR}:${U2NDDIR} $UNIONDIR |
|---|
| 219 | mount --bind $UNIONDIR $tmpdir |
|---|
| 220 | } |
|---|
| 221 | |
|---|
| 222 | |
|---|
| 223 | unionmountOLD() |
|---|
| 224 | { |
|---|
| 225 | FUSE_OPT="-o default_permissions -o allow_other -o use_ino -o nonempty -o suid" |
|---|
| 226 | UNION_OPT="-o cow -o noinitgroups" |
|---|
| 227 | UPATH="/unionfs" |
|---|
| 228 | UBIN="unionfs-fuse" |
|---|
| 229 | mkdir -p /unionfs/host |
|---|
| 230 | mkdir -p /unionfs/union |
|---|
| 231 | dir=$1 |
|---|
| 232 | mkdir -p /unionfs/host/$dir |
|---|
| 233 | #mount --bind /$dir /unionfs/host/$dir |
|---|
| 234 | mkdir -p /unionfs/union/$dir |
|---|
| 235 | host="/unionfs/host/${dir}=RW" |
|---|
| 236 | common="/opt/og2fs/${dir}=RO" |
|---|
| 237 | $UBIN $FUSE_OPT $UNION_OPT ${host}:${common} /unionfs/union/$dir |
|---|
| 238 | mount --bind /unionfs/union/$dir /$dir |
|---|
| 239 | } |
|---|
| 240 | |
|---|
| 241 | ogconfigure_lo() |
|---|
| 242 | { |
|---|
| 243 | # for the portmapper we need localhost |
|---|
| 244 | ifconfig lo 127.0.0.1 |
|---|
| 245 | #/etc/init.d/portmap start |
|---|
| 246 | } |
|---|
| 247 | |
|---|
| 248 | ogconfigure_networking() |
|---|
| 249 | { |
|---|
| 250 | echo "ogconfigure_networking: Buscando interfaz a configurar DEVICE" |
|---|
| 251 | if [ -n "${BOOTIF}" ] |
|---|
| 252 | then |
|---|
| 253 | echo " variable BOOTIF exportada con pxelinux.0 con valor $BOOTIF" |
|---|
| 254 | IP=$IPOPTS |
|---|
| 255 | temp_mac=${BOOTIF#*-} |
|---|
| 256 | # convert to typical mac address format by replacing "-" with ":" |
|---|
| 257 | bootif_mac="" |
|---|
| 258 | IFS='-' |
|---|
| 259 | for x in $temp_mac ; do |
|---|
| 260 | if [ -z "$bootif_mac" ]; then |
|---|
| 261 | bootif_mac="$x" |
|---|
| 262 | else |
|---|
| 263 | bootif_mac="$x:$bootif_mac" |
|---|
| 264 | fi |
|---|
| 265 | done |
|---|
| 266 | unset IFS |
|---|
| 267 | # look for devices with matching mac address, and set DEVICE to |
|---|
| 268 | # appropriate value if match is found. |
|---|
| 269 | for device in /sys/class/net/* ; do |
|---|
| 270 | if [ -f "$device/address" ]; then |
|---|
| 271 | current_mac=$(cat "$device/address") |
|---|
| 272 | if [ "$bootif_mac" = "$current_mac" ]; then |
|---|
| 273 | DEVICE=${device##*/} |
|---|
| 274 | break |
|---|
| 275 | fi |
|---|
| 276 | fi |
|---|
| 277 | done |
|---|
| 278 | else |
|---|
| 279 | echo "variable BOOTIF no exportada, intentamos detectar que interfaz se ha iniciado" |
|---|
| 280 | IP=$ip |
|---|
| 281 | #TODO Detectar que interfaz se ha iniciado |
|---|
| 282 | case ${IP} in |
|---|
| 283 | none|off) |
|---|
| 284 | return 0 |
|---|
| 285 | ;; |
|---|
| 286 | ""|on|any) |
|---|
| 287 | # Bring up device |
|---|
| 288 | DEVICE=eth0 |
|---|
| 289 | ;; |
|---|
| 290 | dhcp|bootp|rarp|both) |
|---|
| 291 | DEVICE=eth0 |
|---|
| 292 | ;; |
|---|
| 293 | *) |
|---|
| 294 | DEVICE=`echo $IP | cut -f6 -d:` |
|---|
| 295 | ;; |
|---|
| 296 | esac |
|---|
| 297 | fi |
|---|
| 298 | if [ -z "${DEVICE}" ]; then |
|---|
| 299 | echo "variable DEVICE con valor $DEVICE no encontrada, llamamos de nuevo a ogconfigure_networking" |
|---|
| 300 | ogconfigure_networking |
|---|
| 301 | fi |
|---|
| 302 | |
|---|
| 303 | if [ -n "${DEVICE}" ] && [ -e /tmp/net-"${DEVICE}".conf ]; then |
|---|
| 304 | echo "variable DEVICE con valor $DEVICE y fichero /tmp/net-$DEVICE encontrados" |
|---|
| 305 | return 0 |
|---|
| 306 | else |
|---|
| 307 | echo "variable DEVICE con valor $DEVICE encontrada, procedemos a configurala y a crear el fichero /tmp/net-$DEVICE" |
|---|
| 308 | fi |
|---|
| 309 | |
|---|
| 310 | # support ip options see linux sources |
|---|
| 311 | # Documentation/filesystems/nfsroot.txt |
|---|
| 312 | # Documentation/frv/booting.txt |
|---|
| 313 | for ROUNDTTT in 2 3 4 6 9 16 25 36 64 100; do |
|---|
| 314 | # The NIC is to be configured if this file does not exist. |
|---|
| 315 | # Ip-Config tries to create this file and when it succeds |
|---|
| 316 | # creating the file, ipconfig is not run again. |
|---|
| 317 | if [ -e /tmp/net-"${DEVICE}".conf ]; then |
|---|
| 318 | break; |
|---|
| 319 | fi |
|---|
| 320 | case ${IP} in |
|---|
| 321 | none|off) |
|---|
| 322 | return 0 |
|---|
| 323 | ;; |
|---|
| 324 | ""|on|any) |
|---|
| 325 | # Bring up device |
|---|
| 326 | echo "Setting $DEVICE with option:on|any and Variable IP= $IP: ipconfig -t ${ROUNDTTT} ${DEVICE} " |
|---|
| 327 | ipconfig -t ${ROUNDTTT} ${DEVICE} |
|---|
| 328 | ;; |
|---|
| 329 | dhcp|bootp|rarp|both) |
|---|
| 330 | echo "Setting $DEVICE with option:dhcp|bootp|rarp|both and Variable IP= $IP: ipconfig -t ${ROUNDTTT} -c ${IP} -d ${DEVICE} " |
|---|
| 331 | ipconfig -t ${ROUNDTTT} -c ${IP} -d ${DEVICE} |
|---|
| 332 | ;; |
|---|
| 333 | *) |
|---|
| 334 | echo "Setting $DEVICE with option * and Variable IP= $IP: ipconfig -t ${ROUNDTTT} -d $IP " |
|---|
| 335 | ipconfig -t ${ROUNDTTT} -d $IP |
|---|
| 336 | # grab device entry from ip option |
|---|
| 337 | NEW_DEVICE=${IP#*:*:*:*:*:*} |
|---|
| 338 | if [ "${NEW_DEVICE}" != "${IP}" ]; then |
|---|
| 339 | NEW_DEVICE=${NEW_DEVICE%:*} |
|---|
| 340 | else |
|---|
| 341 | # wrong parse, possibly only a partial string |
|---|
| 342 | NEW_DEVICE= |
|---|
| 343 | fi |
|---|
| 344 | if [ -n "${NEW_DEVICE}" ]; then |
|---|
| 345 | DEVICE="${NEW_DEVICE}" |
|---|
| 346 | fi |
|---|
| 347 | ;; |
|---|
| 348 | esac |
|---|
| 349 | done |
|---|
| 350 | |
|---|
| 351 | # source ipconfig output |
|---|
| 352 | if [ -n "${DEVICE}" ]; then |
|---|
| 353 | . /tmp/net-${DEVICE}.conf |
|---|
| 354 | DEVICECFG="/tmp/net-${DEVICE}" |
|---|
| 355 | export DEVICECFG |
|---|
| 356 | export DEVICE |
|---|
| 357 | echo "DEVICE=$DEVICE" >> $CFGINITRD |
|---|
| 358 | echo "DEVICECFG=$DEVICECFG" >> $CFGINITRD |
|---|
| 359 | echo "exportando variable DEVICE con valor = $DEVICE y el DEVICECFG con valor $DEVICECFG" |
|---|
| 360 | else |
|---|
| 361 | # source any interface as not exaclty specified |
|---|
| 362 | . /tmp/net-*.conf |
|---|
| 363 | fi |
|---|
| 364 | } |
|---|
| 365 | |
|---|
| 366 | ##################################################################### |
|---|
| 367 | # Ask yesno question. |
|---|
| 368 | # |
|---|
| 369 | # Usage: yesno OPTIONS QUESTION |
|---|
| 370 | # |
|---|
| 371 | # Options: |
|---|
| 372 | # --timeout N Timeout if no input seen in N seconds. |
|---|
| 373 | # --default ANS Use ANS as the default answer on timeout or |
|---|
| 374 | # if an empty answer is provided. |
|---|
| 375 | # |
|---|
| 376 | # Exit status is the answer. 0=yes 1=no |
|---|
| 377 | |
|---|
| 378 | ogYesNo() |
|---|
| 379 | { |
|---|
| 380 | local ans |
|---|
| 381 | local ok=0 |
|---|
| 382 | local timeout=0 |
|---|
| 383 | local default |
|---|
| 384 | local t |
|---|
| 385 | |
|---|
| 386 | while [[ "$1" ]] |
|---|
| 387 | do |
|---|
| 388 | case "$1" in |
|---|
| 389 | --default) |
|---|
| 390 | shift |
|---|
| 391 | default=$1 |
|---|
| 392 | if [[ ! "$default" ]]; then error "Missing default value"; fi |
|---|
| 393 | t=$(echo $default | tr '[:upper:]' '[:lower:]') |
|---|
| 394 | |
|---|
| 395 | if [[ "$t" != 'y' && "$t" != 'yes' && "$t" != 'n' && "$t" != 'no' ]]; then |
|---|
| 396 | error "Illegal default answer: $default" |
|---|
| 397 | fi |
|---|
| 398 | default=$t |
|---|
| 399 | shift |
|---|
| 400 | ;; |
|---|
| 401 | |
|---|
| 402 | --timeout) |
|---|
| 403 | shift |
|---|
| 404 | timeout=$1 |
|---|
| 405 | if [[ ! "$timeout" ]]; then error "Missing timeout value"; fi |
|---|
| 406 | #if [[ ! "$timeout" =~ ^[0-9][0-9]*$ ]]; then error "Illegal timeout value: $timeout"; fi |
|---|
| 407 | shift |
|---|
| 408 | ;; |
|---|
| 409 | |
|---|
| 410 | -*) |
|---|
| 411 | error "Unrecognized option: $1" |
|---|
| 412 | ;; |
|---|
| 413 | |
|---|
| 414 | *) |
|---|
| 415 | break |
|---|
| 416 | ;; |
|---|
| 417 | esac |
|---|
| 418 | done |
|---|
| 419 | |
|---|
| 420 | if [[ $timeout -ne 0 && ! "$default" ]]; then |
|---|
| 421 | error "Non-zero timeout requires a default answer" |
|---|
| 422 | fi |
|---|
| 423 | |
|---|
| 424 | if [[ ! "$*" ]]; then error "Missing question"; fi |
|---|
| 425 | |
|---|
| 426 | while [[ $ok -eq 0 ]] |
|---|
| 427 | do |
|---|
| 428 | if [[ $timeout -ne 0 ]]; then |
|---|
| 429 | if ! read -t $timeout -p "$*" ans; then |
|---|
| 430 | ans=$default |
|---|
| 431 | else |
|---|
| 432 | # Turn off timeout if answer entered. |
|---|
| 433 | timeout=0 |
|---|
| 434 | if [[ ! "$ans" ]]; then ans=$default; fi |
|---|
| 435 | fi |
|---|
| 436 | else |
|---|
| 437 | read -p "$*" ans |
|---|
| 438 | if [[ ! "$ans" ]]; then |
|---|
| 439 | ans=$default |
|---|
| 440 | else |
|---|
| 441 | ans=$(echo $ans | tr '[:upper:]' '[:lower:]') |
|---|
| 442 | fi |
|---|
| 443 | fi |
|---|
| 444 | |
|---|
| 445 | if [[ "$ans" == 'y' || "$ans" == 'yes' || "$ans" == 'n' || "$ans" == 'no' ]]; then |
|---|
| 446 | ok=1 |
|---|
| 447 | fi |
|---|
| 448 | |
|---|
| 449 | if [[ $ok -eq 0 ]]; then warning "Valid answers are: yes y no n"; fi |
|---|
| 450 | done |
|---|
| 451 | [[ "$ans" = "y" || "$ans" == "yes" ]] |
|---|
| 452 | } |
|---|
| 453 | |
|---|
| 454 | |
|---|
