lib/functions

   1 #!/bin/sh - keep it for file(1) to get bourne shell script result
   2 # functions     This file contains functions to be used by most or all
   3 #               shell scripts in the /etc/rc.d/init.d directory.
   4 #
   5 #
   6 # Author:       Miquel van Smoorenburg, <miquels@drinkel.nl.mugnet.org>
   7 # Hacked by:    Greg Galloway and Marc Ewing
   8 # Modified for PLD Linux by:
   9 #               Marek Obuchowicz <elephant@pld-linux.org>
  10 #               Arkadiusz Miśkiewicz <misiek@pld-linux.org>
  11 #               Michał Kochanowicz <mkochano@pld-linux.org>
  12 #               Łukasz Pawelczyk <havner@pld-linux.org>
  13 # Modified for TLD Linux by:
  14 #               Marcin Krol <hawk@tld-linux.org>
  15
  16 # First set up a default search path.
  17 export PATH="/sbin:/usr/sbin:/bin:/usr/bin"
  18
  19 # Set defaults
  20 if [ -z "$COLUMNS" -o -z "$LINES" ]; then
  21         _setterm() {
  22                 set -- $(stty size 2>/dev/null)
  23                 LINES=${LINES:-$1}
  24                 COLUMNS=${COLUMNS:-$2}
  25         }
  26         _setterm
  27         unset _setterm
  28 fi
  29 [ -z "$LINES" ] || [ "$LINES" -le 0 ] && LINES=40
  30 [ -z "$COLUMNS" ] || [ "$COLUMNS" -le 0 ] && COLUMNS=80
  31 export LINES COLUMNS
  32 INIT_COL=$((COLUMNS - 13))
  33
  34 # Set colors
  35 RED=1
  36 GREEN=2
  37 YELLOW=3
  38 BLUE=4
  39 MAGENTA=5
  40 CYAN=6
  41 WHITE=7
  42 NORMAL=15
  43 # Bold definition (second parameter to termput setaf)
  44 BOLD=1
  45 NOBOLD=0
  46 # Default colors
  47 CBRACKETS="$CYAN"       # brackets [ ] color
  48 CDONE="$GREEN"          # DONE and WORK color
  49 CBUSY="$MAGENTA"        # BUSY color
  50 CFAIL="$RED"            # FAIL and DIED color
  51 CPOWEREDBY="$CYAN"      # "Powered by" color
  52 CTLD="$GREEN"           # "TLD Linux" color
  53 CI="$RED"               # Capital I color (press I to enter interactive startup)
  54 CRESMAN="$GREEN"        # "Resource Manager" color
  55 CHARS=""                # Characters displayed on the beginning of show line
  56 CCHARS="$NORMAL"        # Color of these characters (look at /etc/sysconfig/init-colors.gentoo example)
  57
  58 # Source configuration if available - may override default values
  59 [ -r /etc/sysconfig/init-colors ] && . /etc/sysconfig/init-colors
  60 [ -r /etc/sysconfig/system ] && . /etc/sysconfig/system
  61 [ -r /etc/sysconfig/bootsplash ] && . /etc/sysconfig/bootsplash
  62
  63 if [ -z "$VSERVER" -o "$VSERVER" = "detect" ]; then
  64         {
  65                 while read _f _ctx; do
  66                         [ "$_f" = "VxID:" -o "$_f" = "s_context:" ] && break
  67                 done </proc/self/status
  68         } 2>/dev/null
  69         if [ -z "$_ctx" -o "$_ctx" = "0" ]; then
  70                 VSERVER=no
  71         else
  72                 VSERVER=yes
  73         fi
  74         unset _f _ctx
  75 fi
  76
  77 # VSERVER_ISOLATION_NET = isolation only inside of vserver guests
  78 if [ -z "$VSERVER_ISOLATION_NET" -o "$VSERVER_ISOLATION_NET" = "detect" ]; then
  79         VSERVER_ISOLATION_NET=no
  80         if [ "$VSERVER" = "yes" ]; then
  81                 if [ -f /proc/self/nsproxy ]; then
  82                         # older kernels
  83                         {
  84                                 while read _t _data; do
  85                                         [ "$_t" = "net:" ] && break
  86                                 done < /proc/self/nsproxy
  87                         } 2> /dev/null
  88                         if [ "${_data##*\(}" = "I)" ]; then
  89                                 VSERVER_ISOLATION_NET=yes
  90                         fi
  91                 elif [ -f /proc/self/ninfo ]; then
  92                         # newer kernels
  93                         {
  94                                 while read _t _data; do
  95                                         [ "$_t" = "NCaps:" ] && break
  96                                 done < /proc/self/ninfo
  97                         } 2> /dev/null
  98                         if [ "${_t}" = "NCaps:" ]; then
  99                                 VSERVER_ISOLATION_NET=yes
 100                         fi
 101                 else
 102                         # assume (very?) old kernel mode
 103                         VSERVER_ISOLATION_NET=yes
 104                 fi
 105                 unset _f _data
 106         fi
 107 fi
 108
 109 # we need to know in functions if we were called from a terminal
 110 if [ -z "$ISATTY" ]; then
 111         [ -t ] && ISATTY=yes || ISATTY=no
 112         export ISATTY
 113 fi
 114
 115 is_yes() {
 116         # Test syntax
 117         if [ $# = 0 ]; then
 118                 msg_usage " is_yes {value}"
 119                 return 2
 120         fi
 121
 122         # Check value
 123         case "$1" in
 124         yes|Yes|YES|true|True|TRUE|on|On|ON|Y|y|1)
 125                 # true returns zero
 126                 return 0
 127                 ;;
 128         *)
 129                 # false returns one
 130                 return 1
 131                 ;;
 132         esac
 133 }
 134
 135 is_no() {
 136         # Test syntax
 137         if [ $# = 0 ]; then
 138                 msg_usage " is_no {value}"
 139                 return 2
 140         fi
 141
 142         case "$1" in
 143         no|No|NO|false|False|FALSE|off|Off|OFF|N|n|0)
 144                 # true returns zero
 145                 return 0
 146                 ;;
 147         *)
 148                 # false returns one
 149                 return 1
 150                 ;;
 151         esac
 152 }
 153
 154 # checks if file is empty
 155 # empty lines and lines beginning with hash are ignored
 156 is_empty_file() {
 157         [ -s "$1" ] || return 0
 158         grep -vqE "^(#|[[:blank:]]*$)" "$1" && return 1 || return 0
 159 }
 160
 161 # returns OK if $1 contains $2
 162 strstr() {
 163         [ "${1#*$2*}" = "$1" ] && return 1
 164         return 0
 165 }
 166
 167 # Apply sysctl settings, including files in /etc/sysctl.d
 168 apply_sysctl() {
 169         local file
 170         for file in /etc/sysctl.d/*.conf; do
 171                 test -f "$file" && sysctl -q -e -p "$file"
 172         done
 173         sysctl -q -e -p /etc/sysctl.conf
 174 }
 175
 176 if is_yes "$FASTRC" || is_yes "$IN_SHUTDOWN"; then
 177         RC_LOGGING=no
 178 fi
 179
 180 if is_no "$RC_LOGGING"; then
 181         initlog() {
 182                 RESULT=0
 183                 while [ "$1" != "${1##-}" ]; do
 184                         case $1 in
 185                         -c)
 186                                 shift
 187                                 $1
 188                                 RESULT=$?
 189                                 break
 190                                 ;;
 191                         *)
 192                                 shift
 193                                 ;;
 194                         esac
 195                 done
 196                 return $RESULT
 197         }
 198 fi
 199
 200 kernelver() {
 201         local _x _y _z v v1 old_IFS ver
 202         {
 203                 read _x _y v _z
 204                 old_IFS=$IFS
 205                 # strip _* or -* from versions like: "2.6.25_vanilla-1", "2.6.25-1"
 206                 IFS='_-'
 207                 set -- $v
 208                 v1=${1}
 209                 IFS='.'
 210                 set -- $v1
 211                 IFS=$old_IFS
 212
 213                 ver=${3}
 214                 while [ ${#ver} -lt 3 ]; do ver="0$ver"; done
 215                 ver="$2$ver"
 216                 while [ ${#ver} -lt 6 ]; do ver="0$ver"; done
 217                 ver="$1$ver"
 218                 while [ ${#ver} -lt 9 ]; do ver="0$ver"; done
 219                 echo $ver
 220         } < /proc/version
 221 }
 222
 223 kernelverser() {
 224         local _x _y _z v v1 old_IFS ver
 225         {
 226                 read _x _y v _z
 227                 old_IFS=$IFS
 228                 # strip _* or -* from versions like: "2.6.25_vanilla-1", "2.6.25-1"
 229                 IFS='_-'
 230                 set -- $v
 231                 v1=${1}
 232                 IFS='.'
 233                 set -- $v1
 234                 IFS=$old_IFS
 235                 ver=$2
 236                 while [ ${#ver} -lt 3 ]; do ver="0$ver"; done
 237                 ver="$1$ver"
 238                 while [ ${#ver} -lt 6 ]; do ver="0$ver"; done
 239                 echo $ver
 240         } </proc/version
 241 }
 242
 243 kernelvermser() {
 244         local _x _y _z v v1 old_IFS ver
 245         {
 246                 read _x _y v _z
 247                 old_IFS=$IFS
 248                 # strip _* or -* from versions like: "2.6.25_vanilla-1", "2.6.25-1"
 249                 IFS='_-'
 250                 set -- $v
 251                 v1=${1}
 252                 IFS='.'
 253                 set -- $v1
 254                 IFS=$old_IFS
 255                 ver="$1"
 256                 while [ ${#ver} -lt 3 ]; do ver="0$ver"; done
 257                 echo $ver
 258         } </proc/version
 259 }
 260
 261 # Colors workaround
 262 termput() {
 263         is_yes "$ISATTY" || return
 264
 265         if is_yes "$FASTRC" || is_no "$TPUT"; then
 266                 case "$1" in
 267                 hpa)
 268                         echo -ne "\033[$(($2+1))G"
 269                         ;;
 270                 cuu*)
 271                         echo -ne "\033[${2}A"
 272                         ;;
 273                 el)
 274                         echo -ne "\033[0K"
 275                         ;;
 276                 setaf)
 277                         local ISBOLD
 278                         if [ -n "$3" ]; then
 279                                 ISBOLD="$3"
 280                         else
 281                                 ISBOLD="$NOBOLD";
 282                         fi
 283                         is_yes "$COLOR_INIT" && echo -ne "\033[${ISBOLD};3${2}m"
 284                         ;;
 285                 op)
 286                         termput setaf $NORMAL
 287                         ;;
 288                 esac
 289         else
 290                 case "$1" in
 291                 hpa | cuu* | el)
 292                         tput "$@"
 293                         ;;
 294                 setaf)
 295                         if [ "$3" = "1" ]; then tput bold; else tput sgr0; fi
 296                         is_yes "$COLOR_INIT" && tput setaf "$2"
 297                         ;;
 298                 op)
 299                         termput setaf $NORMAL
 300                         ;;
 301                 esac
 302         fi
 303 }
 304
 305 if [ ! -x /bin/printf ]; then
 306         # printf equivalent
 307         # FIXME: buggy when single or double quotes in message!
 308         printf() {
 309                 local text m
 310                 text="$1"
 311                 shift
 312                 if [ $# -gt 0 ]; then
 313                         m="$1"
 314                         shift
 315                         while [ $# -gt 0 ]; do
 316                                 m="$m\",\"$1"
 317                                 shift
 318                         done
 319                 fi
 320                 awk "BEGIN {printf \"$text\", \"$m\"; }"
 321         }
 322 fi
 323
 324 # National language support function
 325 nls() {
 326         local msg_echo nls_domain text message
 327         msg_echo='\n'
 328         nls_domain="$NLS_DOMAIN"
 329         while [ "$1" != "${1##-}" ]; do
 330                 case "$1" in
 331                 --nls-domain)
 332                         shift
 333                         nls_domain="$1"
 334                         shift
 335                         ;;
 336                 -n)
 337                         msg_echo=''
 338                         shift
 339                         ;;
 340                 esac
 341         done
 342         message="$1"
 343         shift
 344
 345         # empty message, so we return --misiek
 346         if [ -z "$message" ]; then
 347                 echo -en "$msg_echo"
 348                 return
 349         fi
 350
 351         if is_yes "$GETTEXT"; then
 352                 message=$(TEXTDOMAINDIR="/etc/sysconfig/locale" gettext -e --domain="${nls_domain:-rc-scripts}" "$message")
 353         fi
 354
 355         printf "$message" "$@"
 356         echo -en "$msg_echo"
 357 }
 358
 359 rc_splash() {
 360         local action="$1"
 361
 362         if ! is_no "$BOOT_SPLASH" && ! is_yes "$VSERVER"; then
 363                 [ -x /bin/splash ] && /bin/splash "$action"
 364         fi
 365
 366         : $((progress++))
 367 }
 368
 369 msg_network_down() {
 370         nls "ERROR: Networking is down. %s can't be run." "$1" >&2
 371 }
 372
 373 msg_starting() {
 374         show "Starting %s service" "$1"
 375 }
 376
 377 msg_already_running() {
 378         nls "%s service is already running." "$1"
 379 }
 380
 381 msg_stopping() {
 382         show "Stopping %s service" "$1"
 383 }
 384
 385 msg_not_running() {
 386         nls "%s service is not running." "$1"
 387 }
 388
 389 msg_reloading() {
 390         show "Reloading %s service" "$1"
 391 }
 392
 393 msg_usage() {
 394         nls "Usage: %s" "$*"
 395 }
 396
 397 # Some functions to handle TLD Linux-style messages
 398 show() {
 399         local text len time
 400
 401         if is_yes "$RC_UPTIME"; then
 402                 time=$(awk '{printf("[%8.2f] ", $1)}' /proc/uptime)
 403         fi
 404
 405         if is_no "$FASTRC" && is_yes "$GETTEXT"; then
 406                 text=$time$(nls -n "$@")
 407         else
 408                 text=$time$(printf "$@")
 409         fi
 410         len=${#text}
 411         while [ $((len++)) -lt $INIT_COL ]; do
 412                 text="$text."
 413         done
 414         if [ -n "$CHARS" ]; then
 415                 termput setaf $CCHARS
 416                 echo -n "$CHARS"
 417                 termput op
 418         fi
 419         echo -n "$text"
 420 }
 421
 422 deltext() {
 423         termput hpa $INIT_COL
 424 }
 425
 426 # Displays message in square brackests ("[ DONE ]"). Takes two arguments.
 427 # First is the text to display, second is color number to use (argument to
 428 # tput setaf). If second argument is not given, default (2, green) will be
 429 # used).
 430 progress() {
 431         local COLOR
 432         if [ -n "$2" ]; then
 433                 COLOR="$2"
 434         else
 435                 COLOR="$CDONE"
 436         fi
 437         deltext
 438         echo -n "$(termput setaf $CBRACKETS)[$(termput setaf $COLOR) $(nls --nls-domain rc-scripts "$1") $(termput setaf $CBRACKETS)]$(termput op)"
 439 }
 440
 441 busy() {
 442         echo -n "$_busy"
 443 }
 444
 445 ok() {
 446         echo "$_ok"
 447 }
 448
 449 started() {
 450         echo "$_started"
 451 }
 452
 453 fail() {
 454         echo "$_fail"
 455         return 1
 456 }
 457
 458 died() {
 459         echo "$_died"
 460         return 1
 461 }
 462
 463 # Check if $pid (could be plural) are running
 464 checkpid() {
 465         while [ "$1" ]; do
 466                 [ -d "/proc/$1" ] && return 0
 467                 shift
 468         done
 469         return 1
 470 }
 471
 472 # - outside chroot get only those processes, which are outside chroot.
 473 # - inside chroot get only those processes, which are inside chroot.
 474 # - don't filter out pids which do not have corresponding running processes (process died etc)
 475 # (note: some processes like named are chrooted but run outside chroot)
 476 # - do nothing inside vserver
 477 filter_chroot() {
 478         # no pids, exit early
 479         [ $# -eq 0 ] && return
 480
 481         # filter by pid namespace if such dir exists for current process
 482         # we do filter in containers as stacked containers are possible with LXC
 483         if [ -d /proc/$$/ns ]; then
 484                 local pids
 485                 pids=$(filter_ns "$@") && set -- "$pids"
 486         fi
 487
 488         if is_yes "$VSERVER"; then
 489                 echo $@
 490                 return
 491         fi
 492
 493         if [ $# -lt 1 -o ! -d /proc/1 ]; then
 494                 echo $@
 495                 return
 496         fi
 497
 498         local root_dir good_pids="" good_add_pid
 499         for root_pid in $@; do
 500                 root_dir=$(resolvesymlink /proc/${root_pid}/root)
 501                 if [ -n "$root_dir" ]; then
 502                         good_add_pid=1
 503                         if [ -n "${SYSTEM_CHROOTS}" ]; then
 504                                 for r_dir in ${SYSTEM_CHROOTS}; do
 505                                         echo "$root_dir" | grep -q "^${r_dir}" && good_add_pid=0
 506                                 done
 507                         fi
 508                         [ "$good_add_pid" -eq 1 ] && good_pids="$good_pids $root_pid"
 509                 elif [ ! -d "/proc/$root_pid" ]; then
 510                         good_pids="$good_pids $root_pid"
 511                 fi
 512         done
 513         echo $good_pids
 514 }
 515
 516 # similar to filter_chroot, but filter based on /proc/PID/ns/pid value
 517 filter_ns() {
 518         local cur_ns=$(resolvesymlink /proc/$$/ns/pid)
 519         [ "$cur_ns" ] || return 1
 520
 521         local pid ns pids=""
 522         # add pids if it matches current pid namespace
 523         # we should add pids what do not exist (dead processes),
 524         # but not add pids whose namespace does not match
 525         # (processes belonging to different NS do exist in /proc)
 526         for pid in "$@"; do
 527                 if [ ! -d /proc/$pid ]; then
 528                         pids="$pids $pid"
 529                         continue
 530                 fi
 531                 ns=$(resolvesymlink /proc/$pid/ns/pid)
 532                 if [ "$ns" = "$cur_ns" ]; then
 533                         pids="$pids $pid"
 534                 fi
 535         done
 536         echo $pids
 537         return 0
 538 }
 539
 540 # Usage:
 541 # run_cmd Message command_to_run
 542 # run_cmd -a Message command_to_run
 543 # run_cmd --user "username" "Message" command_to_run
 544 run_cmd() {
 545         local force_err=0 exit_code=0 errors user
 546         while [ $# -gt 0 ]; do
 547                 case "$1" in
 548                 -a)
 549                         force_err=1
 550                         ;;
 551                 --user)
 552                         shift
 553                         user=$1
 554                         ;;
 555                 *)
 556                         break
 557                 esac
 558                 shift
 559         done
 560
 561         local message=$1; shift
 562         show "$message"; busy
 563
 564         if errors=$(
 565                 cd /
 566                 export HOME=/tmp TMPDIR=/tmp
 567                 if is_no "$RC_LOGGING"; then
 568                         ${user:+setuidgid -s $user} eval "$@" 2>&1
 569                 else
 570                         ${user:+setuidgid -s $user} initlog -c "$*" 2>&1
 571                 fi
 572                 ); then
 573                 ok
 574                 log_success "$1 $message"
 575         else
 576                 fail
 577                 log_failed "$1 $message"
 578                 exit_code=1
 579         fi
 580         [ -n "$errors" ] && [ $exit_code -eq 1 -o $force_err -eq 1 ] && echo "$errors"
 581         return $exit_code
 582 }
 583
 584 _daemon_set_ulimits() {
 585         local opt val ksh=${KSH_VERSION:+1}
 586         set -- ${SERVICE_LIMITS:-$DEFAULT_SERVICE_LIMITS}
 587         while [ $# -gt 0 ]; do
 588                 opt=$1
 589                 val=$2
 590                 if [ "$ksh" ]; then
 591                         case "$opt" in
 592                         -Hu)
 593                                 opt=-Hp
 594                         ;;
 595                         -Su)
 596                                 opt=-Sp
 597                         ;;
 598                         -u)
 599                                 opt=-p
 600                         ;;
 601                         esac
 602                 fi
 603                 ulimit $opt $val
 604                 shift 2
 605         done
 606 }
 607
 608 # A function to start a program (now it's useful on read-only filesystem too)
 609 daemon() {
 610         local errors="" prog="" end="" waitname="" waittime=0
 611         local exit_code=0
 612         local nice=$SERVICE_RUN_NICE_LEVEL
 613         local fork user closefds redirfds pidfile makepid chdir=/
 614
 615         # NOTE: if you wonder how the shellish (by syntax) $prog works in ssd mode,
 616         # then the answer is: it totally ignores $prog and uses "$@" itself.
 617
 618         while [ $# -gt 0 ]; do
 619                 case $1 in
 620                 '')
 621                 msg_usage " daemon [--check] [--user user] [--fork] [--chdir directory] [--closefds] [--redirfds] [--waitforname procname] [--waitfortime seconds] [--pidfile file] [--makepid] [+/-nicelevel] {program} <program args>"
 622                         return 2
 623                         ;;
 624                 --check)
 625                         # for compatibility with redhat/mandrake
 626                         nls "warning: --check option is ignored!"
 627                         shift
 628                         ;;
 629                 --user)
 630                         shift
 631                         user=$1
 632                         ;;
 633                 --fork)
 634                         fork=1
 635                         end='&'
 636                         ;;
 637                 --chdir)
 638                         shift
 639                         chdir=$1
 640                         ;;
 641                 --closefds)
 642                         closefds=1
 643                         ;;
 644                 --redirfds)
 645                         redirfds=1
 646                         ;;
 647                 --waitforname)
 648                         shift
 649                         waitname="$1"
 650                         ;;
 651                 --waitfortime)
 652                         shift
 653                         waittime="$1"
 654                         ;;
 655                 --pidfile=?*)
 656                         pidfile="${1#--pidfile=}"
 657                         case "$pidfile" in /*);; *) pidfile="/var/run/$pidfile";; esac
 658                         ;;
 659                 --pidfile)
 660                         shift
 661                         pidfile="$1"
 662                         case "$pidfile" in /*);; *) pidfile="/var/run/$pidfile";; esac
 663                         ;;
 664                 --makepid)
 665                         makepid=1
 666                         ;;
 667                 -*|+*)
 668                         nice=$1
 669                         shift
 670                         break
 671                         ;;
 672                 *)
 673                         break
 674                         ;;
 675                 esac
 676                 shift
 677         done
 678         if [ -n "$user" -a "$user" != "root" ]; then
 679                 prog="/bin/su $user -s /bin/sh -c \""
 680         fi
 681         if [ "$fork" = "1" ]; then
 682                 prog="/usr/bin/setsid ${prog:-sh -c \"}"
 683         fi
 684         # If command to execute ends with quotation mark, add remaining
 685         # arguments and close quotation.
 686         if [ "$prog" != "${prog%\"}" ]; then
 687                 prog="$prog $*$end\""
 688         else
 689                 prog="$prog $*$end"
 690         fi
 691
 692         _daemon_set_ulimits
 693
 694         [ -z "$DEFAULT_SERVICE_UMASK" ] && DEFAULT_SERVICE_UMASK=022
 695         [ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
 696
 697         # And start it up.
 698         busy
 699         cd $chdir
 700         [ -n "$SERVICE_CPUSET" ] && is_yes "$CPUSETS" && echo $$ > "/dev/cpuset/${SERVICE_CPUSET}/tasks"
 701         if errors=$(
 702                 umask ${SERVICE_UMASK:-$DEFAULT_SERVICE_UMASK};
 703                 export USER=root HOME=/tmp TMPDIR=/tmp
 704
 705                 nice=${nice:-$DEFAULT_SERVICE_RUN_NICE_LEVEL}
 706                 nice=${nice:-0}
 707
 708                 # make nice level absolute, not to be dependant of nice level of shell where service started
 709                 nice=$(($nice - $(nice)))
 710
 711                 if [ "$closefds" = 1 ]; then
 712                         exec 1>&-
 713                         exec 2>&-
 714                         exec 0<&-
 715                 elif [ "$redirfds" = 1 ]; then
 716                         exec 1>/dev/null
 717                         exec 2>/dev/null
 718                         exec 0</dev/null
 719                 else
 720                         exec 2>&1
 721                         exec 0</dev/null
 722                 fi
 723
 724                 if is_no "$RC_LOGGING"; then
 725                         prog=$1; shift
 726                         if [ ! -x $prog ]; then
 727                                 logger -t rc-scripts -p daemon.debug "daemon: Searching PATH for $prog, consider using full path in initscript"
 728                                 local a o=$IFS
 729                                 IFS=:
 730                                 for a in $PATH; do
 731                                         if [ -x $a/$prog ]; then
 732                                                 prog=$a/$prog
 733                                                 break
 734                                         fi
 735                                 done
 736                                 IFS=$o
 737                         fi
 738                         set -- "$prog" "$@"
 739
 740                         # use setsid to detach from terminal,
 741                         # needs pidfile or ssd would check setsid program instead of real program
 742                         if [ "$pidfile" ]; then
 743                                 set -- /usr/bin/setsid "$@"
 744                         fi
 745
 746                         prog=$1; shift
 747                         /sbin/start-stop-daemon -q --start \
 748                                 --nicelevel $nice \
 749                                 ${pidfile:+--pidfile $pidfile} \
 750                                 ${makepid:+--make-pidfile} \
 751                                 ${user:+--chuid $user} \
 752                                 ${chdir:+--chdir "$chdir"} \
 753                                 ${fork:+--background} \
 754                                 ${SERVICE_DROPCAPS:+--dropcap $SERVICE_DROPCAPS} \
 755                                 --exec "$prog" \
 756                                 -- "$@"
 757                 else
 758                         nice -n $nice initlog -c "$prog" 2>&1 </dev/null
 759                 fi
 760                 ); then
 761
 762                 # wait for process (or pidfile) to be created
 763                 if [ "$waittime" -gt 0 ]; then
 764                         # waitname can be empty, as if pidfile is in use, it is not relevant
 765                         waitproc "$waittime" "$waitname" "$pidfile"
 766                 fi
 767                 log_success "$1 startup"
 768                 ok
 769         else
 770                 exit_code=1
 771                 fail
 772                 log_failed "$1 startup"
 773                 [ -n "$errors" ] && echo >&2 "$errors"
 774         fi
 775         return $exit_code
 776 }
 777
 778 # wait (in seconds) for process (or pidfile) to be created
 779 # example: waitproc 30 httpd /var/run/httpd.pid
 780 waitproc() {
 781         local waittime=$1 procname=$2 pidfile=$3
 782         local pid
 783         local now=$(date +%s)
 784         local maxtime=$(($now + $waittime))
 785
 786         if [ -z "$procname" -a -z "$pidfile" ]; then
 787                 msg_usage "waitproc: procname or pidfile must be specified"
 788                 return 2
 789         fi
 790
 791         while [ "$(date +%s)" -lt "$maxtime" ]; do
 792                 pid=$(pidofproc "$procname" "$pidfile")
 793                 [ -n "$pid" ] && break
 794
 795                 # start-stop-daemon uses same delay
 796                 usleep 20000
 797         done
 798 }
 799
 800 # A function to stop a program.
 801 killproc() {
 802         local notset killlevel base pid pidfile result delay=3 try
 803         # Test syntax.
 804         if [ $# = 0 ]; then
 805                 msg_usage " killproc [--pidfile|-p PIDFILE] [-d DELAY] {program} [-SIGNAME]"
 806                 return 2
 807         fi
 808
 809         while [ "$1" != "${1##-}" ]; do
 810                 case $1 in
 811                 -d)
 812                         delay="$2"
 813                         shift 2
 814                         ;;
 815                 --pidfile|-p)
 816                         pidfile="$2"
 817                         case "$pidfile" in /*);; *) pidfile="/var/run/$pidfile";; esac
 818                         shift 2
 819                         ;;
 820                 --waitforname)
 821                         waitname="$2"
 822                         shift 2
 823                         ;;
 824                 --waitfortime)
 825                         waittime="$2"
 826                         shift 2
 827                         ;;
 828                 esac
 829         done
 830
 831         busy
 832
 833         local notset=0
 834         # check for second arg to be kill level
 835         if [ -n "$2" ]; then
 836                 killlevel=$2
 837         else
 838                 notset=1
 839         fi
 840
 841         # experimental start-stop-daemon based killing.
 842         # works only with pidfile
 843         if is_no "$RC_LOGGING" && [ "$pidfile" ]; then
 844                 local sig=${killlevel:--TERM} retry
 845                 # do not retry if signal is specified,
 846                 # as otherwise impossible to send HUP if process pid stays in pidfile.
 847                 # however, do retry if --waitfortime was specified
 848                 if [ "${killlevel+set}" = "set" ] && [ -z "$waittime" ]; then
 849                         # if we send HUP it's ok if process does not die
 850                         retry="--oknodo"
 851                 else
 852                         local waitretry
 853                         : ${waittime=10}
 854                         : ${waitretry=$(($waittime * 2))}
 855
 856                         # 1. kill with $sig, wait $delay
 857                         # 2. kill with $sig, wait $waittime
 858                         # 3. kill with KILL, wait $waitretry
 859                         retry="--retry ${sig#-}/${delay}/${sig#-}/${waittime}/KILL/${waitretry}"
 860                 fi
 861                 /sbin/start-stop-daemon -q --stop \
 862                         $retry \
 863                         ${waitname:+--name $waitname} \
 864                         -s ${sig#-} \
 865                         ${pidfile:+--pidfile $pidfile}
 866                 result=$?
 867                 if [ "$result" -eq 0 ]; then
 868                         ok
 869                 else
 870                         fail
 871                 fi
 872                 return $result
 873         fi
 874
 875
 876         # Save basename.
 877         base=${1##*/}
 878
 879         # Find pid.
 880         pid=$(pidofproc "$1" "$pidfile")
 881         [ -z "$pid" ] && pid=$(pidofproc "$base" "$pidfile")
 882
 883         # Kill it.
 884         if [ -n "$pid" -a "$pid" != "$$" ] && checkpid $pid 2>&1; then
 885                 if [ "$notset" = "1" ]; then
 886                         if checkpid $pid 2>&1; then
 887                                 # TERM first, then KILL if not dead
 888                                 kill -TERM $pid
 889                                 usleep 50000
 890
 891                                 try=0
 892                                 while [ $try -lt $delay ]; do
 893                                         checkpid $pid || break
 894                                         sleep 1
 895                                         try=$((try+1))
 896                                 done
 897                                 if checkpid $pid; then
 898                                         # XXX: SIGKILL is sent already on 4th second!
 899                                         # HARMFUL for example to mysqld (which is already workarounded)
 900                                         kill -KILL $pid
 901                                         usleep 50000
 902                                 fi
 903                         fi
 904                         checkpid $pid
 905                         result=$?
 906                         if [ "$result" -eq 0 ]; then
 907                                 fail
 908                                 log_failed "$1 shutdown"
 909                         else
 910                                 ok
 911                                 log_success "$1 shutdown"
 912                         fi
 913                         result=$(( ! $result ))
 914                 else
 915                         # use specified level only
 916                         if checkpid $pid > /dev/null 2>&1; then
 917                                 kill $killlevel $pid
 918                                 result=$?
 919                                 if [ "$result" -eq 0 ]; then
 920                                         ok
 921                                         log_success "$1 got $killlevel"
 922                                 else
 923                                         result=7
 924                                         fail
 925                                         log_failed "$1 didn't get $killlevel"
 926                                 fi
 927                         else
 928                                 result=7
 929                                 died
 930                                 log_failed "$1 shutdown"
 931                         fi
 932                 fi
 933         else
 934                 died
 935                 log_failed "$1 shutdown"
 936                 result=7
 937         fi
 938
 939         if [ -n "$waitname" -a -n "$waittime" ]; then
 940                 # Save basename.
 941                 base=${waitname##*/}
 942                 # Find pid.
 943                 pid=$(pidofproc "$waitname" "$pidfile")
 944                 [ -z "$pid" ] && pid=$(pidofproc "$base" "$pidfile")
 945                 i=0
 946                 while [ "$i" -lt "$waittime" ]; do
 947                         i=$(( i + 1 ))
 948                         checkpid $pid && sleep 1 || break
 949                 done
 950         fi
 951
 952         # Remove pid file if any.
 953         if [ "$notset" = "1" ]; then
 954                 rm -f /var/run/${base}.pid
 955         fi
 956
 957         return $result
 958 }
 959
 960 # A function to find the pid of a program.
 961 pidofproc() {
 962         local pid pidfile base=${1##*/}
 963         pidfile="$base.pid"
 964         [ -n "$2" ] && pidfile="$2"
 965
 966         # Test syntax.
 967         if [ $# = 0 ]; then
 968                 msg_usage " pidofproc {program}"
 969                 return 2
 970         fi
 971
 972         # First try pidfile or "/var/run/*.pid"
 973         case "$pidfile" in
 974                 /*)pidfile="${pidfile}";;
 975                 *) pidfile="/var/run/$pidfile";;
 976         esac
 977         if [ -f "${pidfile}" ]; then
 978                 local p
 979                 for p in $(< "${pidfile}"); do
 980                         [ -z "$(echo "$p" | awk '{gsub(/[0-9]/,"");print;}')" ] && pid="$pid $p"
 981                 done
 982         else
 983                 unset pidfile
 984         fi
 985
 986         # Next try "pidof" if pidfile is not specified
 987         if [ -z "$pid" ] && [ -z "$pidfile" ]; then
 988                 pid=$(pidof -o $$ -o $PPID -o %PPID -x "$1")
 989         fi
 990
 991         pid=$(filter_chroot $pid)
 992         echo $pid
 993 }
 994
 995 # status [--pidfile PIDFILE] {subsys} [{daemon}]"
 996 status() {
 997         local pid subsys daemon cpuset_msg pidfile
 998         if [ "$1" = "--pidfile" -o "$1" = "-p" ]; then
 999                 pidfile=$2
1000                 case "$pidfile" in /*);; *) pidfile="/var/run/$pidfile";; esac
1001                 shift 2
1002         fi
1003
1004         subsys=$1
1005         daemon=${2:-$subsys}
1006
1007         # Test syntax.
1008         if [ $# = 0 ]; then
1009                 msg_usage " status [--pidfile PIDFILE] {subsys} [{daemon}]"
1010                 return 2
1011         fi
1012
1013         # if pidfile specified, pid must be there
1014         if [ "$pidfile" ]; then
1015                 [ -f "$pidfile" ] && read pid < $pidfile
1016                 # filter_chroot does not filter out dead pids, so this extra check, see t/status-pidfile.sh
1017                 if [ ! -d "/proc/$pid" ]; then
1018                         pid=
1019                 fi
1020         else
1021                 pid=$(pidof -o $$ -o $PPID -o %PPID -x $daemon)
1022         fi
1023         pid=$(filter_chroot $pid)
1024
1025         if [ "$pid" ]; then
1026                 cpuset_msg="..."
1027                 if [ -n "$SERVICE_CPUSET" ] && is_yes "$CPUSETS"; then
1028                         if grep -q "$pid" "/dev/cpuset/${SERVICE_CPUSET}/tasks"; then
1029                                 cpuset_msg=$(nls " in cpuset %s..." "$SERVICE_CPUSET")
1030                         else
1031                                 cpuset_msg=$(nls " outside of configured cpuset %s..." "$SERVICE_CPUSET")
1032                         fi
1033                 fi
1034                 nls "%s (pid %s) is running%s" "$daemon" "$pid" "$cpuset_msg"
1035                 return 0
1036         fi
1037
1038         # Next try "/var/run/*.pid" files; if pidfile is not set
1039         local base=${daemon##*/}
1040         if [ -z "$pidfile" -a -f /var/run/${base}.pid ]; then
1041                 read pid < /var/run/${base}.pid
1042                 pid=$(filter_chroot $pid)
1043                 if [ "$pid" ]; then
1044                         nls "%s dead but pid file (%s) exists" "$subsys" /var/run/${base}.pid
1045                         return 1
1046                 fi
1047         fi
1048
1049         # See if /var/lock/subsys/$subsys exists
1050         if [ -f /var/lock/subsys/$subsys ]; then
1051                 nls "daemon %s dead but subsys (%s) locked" "$daemon" "$subsys"
1052                 return 2
1053         fi
1054         nls "%s is stopped" "$subsys"
1055         return 3
1056 }
1057
1058 # Confirm whether we really want to run this service
1059 confirm() {
1060         local answer
1061         nls -n "Start service %s (Y)es/(N)o/(C)ontinue? [Y] " "$1"
1062         read answer
1063         case $answer in
1064         y|Y|t|T|j|J|"")
1065                 return 0
1066                 ;;
1067         c|C|k|K|w|W)
1068                 return 2
1069                 ;;
1070         n|N)
1071                 return 1
1072                 ;;
1073         *)
1074                 confirm $1
1075                 return $?
1076                 ;;
1077         esac
1078 }
1079
1080 # module is needed (ie. is requested, is available and isn't loaded already)
1081 is_module() {
1082         # module name without .o at end
1083         if ! lsmod | grep -q "$1"; then
1084                 if ls -1R /lib/modules/$(uname -r)/ 2> /dev/null | grep -q "^${1}.\(\|k\)o\(\|.gz\)"; then
1085                         # true
1086                         return 0
1087                 fi
1088         fi
1089         # false
1090         return 1
1091 }
1092
1093 _modprobe() {
1094         local parsed single die args foo result
1095         parsed=no
1096         while is_no "$parsed"; do
1097                 case "$1" in
1098                 "single")
1099                         single=yes
1100                         shift
1101                         ;;
1102                 "die")
1103                         die=yes
1104                         shift
1105                         ;;
1106                 -*)
1107                         args="$args $1"
1108                         shift
1109                         ;;
1110                 *)
1111                         parsed=yes
1112                         ;;
1113                 esac
1114         done
1115         if is_yes "${single}"; then
1116                 foo="$@"
1117                 show "Loading %s kernel module(s)" "$foo"
1118                 busy
1119         fi
1120         if [ -x /sbin/modprobe ]; then
1121                 /sbin/modprobe -s $args "$@"
1122                 result=$?
1123         else
1124                 deltext; fail
1125                 result=1
1126         fi
1127         if is_yes "${single}"; then
1128                 deltext
1129                 if [ $result = "0" ]; then
1130                         is_yes "$single" && ok
1131                 else
1132                         fail
1133                         if is_yes "$die"; then
1134                                 nls "Could not load %s kernel module(s)" "$@"
1135                                 exit 1
1136                         fi
1137                 fi
1138         fi
1139 }
1140
1141 if is_no "$RC_LOGGING"; then
1142         log_success() {
1143                 :
1144         }
1145
1146         log_failed() {
1147                 :
1148         }
1149 else
1150         log_success() {
1151                 initlog -n $0 -s "$1 $2" -e 1
1152         }
1153
1154         log_failed() {
1155                 initlog -n $0 -s "$1 $2" -e 2
1156         }
1157 fi
1158
1159 # Check if any flavor of portmapper is running
1160 check_portmapper() {
1161         if [ -x /usr/sbin/rpcinfo ]; then
1162                 if /usr/sbin/rpcinfo -p localhost >/dev/null 2>/dev/null; then
1163                         return 0
1164                 else
1165                         return 1
1166                 fi
1167         elif [ -z "$(pidof portmap)" -a -z "$(pidof rpcbind)" ]; then
1168                 return 1
1169         fi
1170         return 0
1171 }
1172
1173 # is_fsmounted fstype mntpoint
1174 # Check if filesystem fstype is mounted on mntpoint
1175 is_fsmounted() {
1176         local fstype=$1
1177         local mntpoint=$2
1178
1179         [ -n "$fstype" -a -n "$mntpoint" ] || return 1
1180
1181         if [ -r /proc/mounts ]; then
1182                 grep -qE "[[:blank:]]$mntpoint[[:blank:]]+$fstype[[:blank:]]" /proc/mounts
1183                 return $?
1184         else
1185                 if [ "$(stat -L -f -c %T $mntpoint 2>/dev/null)" = "$fstype" ]; then
1186                         return 0
1187                 else
1188                         return 1
1189                 fi
1190         fi
1191 }
1192
1193 # __umount_loop awk_program fstab_file first_msg retry_msg umount_args
1194 # awk_program should process fstab_file and return a list of fstab-encoded
1195 # paths; it doesn't have to handle comments in fstab_file.
1196 __umount_loop() {
1197         local remaining sig=
1198         local retry=3 count
1199
1200         remaining=$(LC_ALL=C awk "/^#/ {next} $1" "$2" | sort -r)
1201         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
1202                 if [ "$retry" -eq 3 ]; then
1203                         run_cmd "$3" fstab-decode umount $5 $remaining
1204                 else
1205                         run_cmd "$4" fstab-decode umount $5 $remaining
1206                 fi
1207                 count=4
1208                 remaining=$(LC_ALL=C awk "/^#/ {next} $1" "$2" | sort -r)
1209                 while [ "$count" -gt 0 ]; do
1210                         [ -z "$remaining" ] && break
1211                         count=$(($count-1))
1212                         usleep 500000
1213                         remaining=$(LC_ALL=C awk "/^#/ {next} $1" "$2" | sort -r)
1214                 done
1215                 [ -z "$remaining" ] && break
1216                 fstab-decode /bin/fuser -k -m $sig $remaining >/dev/null
1217                 sleep 3
1218                 retry=$(($retry -1))
1219                 sig=-9
1220         done
1221 }
1222
1223 # Similar to __umount loop above, specialized for loopback devices
1224 __umount_loopback_loop() {
1225         local remaining devremaining sig=
1226         local retry=3
1227
1228         remaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $2}' /proc/mounts)
1229         devremaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $1}' /proc/mounts)
1230         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
1231                 if [ "$retry" -eq 3 ]; then
1232                         run_cmd "Unmounting loopback filesystems: " \
1233                                 fstab-decode umount $remaining
1234                 else
1235                         run_cmd "Unmounting loopback filesystems (retry):" \
1236                                 fstab-decode umount $remaining
1237                 fi
1238                 for dev in $devremaining ; do
1239                         losetup $dev > /dev/null 2>&1 && \
1240                                 run_cmd "Detaching loopback device $dev: " \
1241                                 losetup -d $dev
1242                 done
1243                 remaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $2}' /proc/mounts)
1244                 devremaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $1}' /proc/mounts)
1245                 [ -z "$remaining" ] && break
1246                 fstab-decode /bin/fuser -k -m $sig $remaining >/dev/null
1247                 sleep 3
1248                 retry=$(($retry -1))
1249                 sig=-9
1250         done
1251 }
1252
1253 rc_cache_init() {
1254         # If we have cachefile, use it.
1255         # If we don't, create memory variables and try to save silently,
1256         local cachefile='/var/cache/rc-scripts/msg.cache'
1257
1258         local term
1259         if is_yes "$ISATTY"; then
1260                 term=$TERM
1261         else
1262                 term=dumb
1263         fi
1264
1265         # We create $check variable which is used to invalidate the cache.
1266         # The $check contains user locale and terminal.
1267         local check="$term.$LC_MESSAGES.$INIT_COL"
1268
1269         if [ -f "$cachefile" -a "$cachefile" -nt /etc/sysconfig/system -a "$cachefile" -nt /etc/sysconfig/init-colors ]; then
1270                 if . "$cachefile" 2>/dev/null; then
1271                         if [ "$check" = "$_check" ]; then
1272                                 return
1273                         fi
1274                 fi
1275         fi
1276
1277         # primitive caching
1278         _busy=$(progress "BUSY" "$CBUSY")
1279         _ok=$(progress "DONE")
1280         _started=$(progress "WORK")
1281         _fail=$(progress "FAIL" "$CFAIL")
1282         _died=$(progress "DIED" "$CFAIL")
1283
1284         # we don't use heredoc, as ksh attempts to create tempfile then
1285         (> "$cachefile" ) 2>/dev/null || return
1286         echo "_busy='$_busy';" >> "$cachefile"
1287         echo "_ok='$_ok';" >> "$cachefile"
1288         echo "_started='$_started';" >> "$cachefile"
1289         echo "_fail='$_fail';" >> "$cachefile"
1290         echo "_died='$_died';" >> "$cachefile"
1291         echo "_check='$check';" >> "$cachefile"
1292 }
1293
1294 rc_gettext_init() {
1295         if [ -z "$GETTEXT" ]; then
1296                 if [ -x /bin/gettext -o -x /usr/bin/gettext ]; then
1297                         GETTEXT=yes
1298                 else
1299                         GETTEXT=no
1300                 fi
1301         fi
1302
1303         if [ -z "$TPUT" ]; then
1304                 if [ -d /usr/share/terminfo ] && [ -x /usr/bin/tput -o -x /bin/tput ]; then
1305                         TPUT=yes
1306                         # check if we are on proper terminal
1307                         tput longname >/dev/null 2>&1 || TPUT=no
1308                 else
1309                         TPUT=no
1310                 fi
1311         fi
1312 }
1313
1314 rc_gettext_init
1315 rc_cache_init
1316
1317 #/*
1318 # * Local variables:
1319 # * mode: sh
1320 # * indent-tabs-mode: notnil
1321 # * End:
1322 # *
1323 # */