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
  14 # First set up a default search path.
  15 export PATH="/sbin:/usr/sbin:/bin:/usr/bin"
  16
  17 # Set defaults
  18 if [ -z "$COLUMNS" -o -z "$LINES" ]; then
  19         _setterm() {
  20                 set -- $(stty size 2>/dev/null)
  21                 LINES=${LINES:-$1}
  22                 COLUMNS=${COLUMNS:-$2}
  23         }
  24         _setterm
  25         unset _setterm
  26 fi
  27 [ -z "$LINES" ] || [ "$LINES" -le 0 ] && LINES=40
  28 [ -z "$COLUMNS" ] || [ "$COLUMNS" -le 0 ] && COLUMNS=80
  29 export LINES COLUMNS
  30 INIT_COL=$((COLUMNS - 13))
  31
  32 # Set colors
  33 RED=1
  34 GREEN=2
  35 YELLOW=3
  36 BLUE=4
  37 MAGENTA=5
  38 CYAN=6
  39 WHITE=7
  40 NORMAL=15
  41 # Bold definition (second parameter to termput setaf)
  42 BOLD=1
  43 NOBOLD=0
  44 # Default colors
  45 CBRACKETS="$CYAN"       # brackets [ ] color
  46 CDONE="$GREEN"          # DONE and WORK color
  47 CBUSY="$MAGENTA"        # BUSY color
  48 CFAIL="$RED"            # FAIL and DIED color
  49 CPOWEREDBY="$CYAN"      # "Powered by" color
  50 CPLD="$GREEN"           # "PLD Linux Distribution" color
  51 CI="$RED"               # Capital I color (press I to enter interactive startup)
  52 CRESMAN="$GREEN"        # "Resource Manager" color
  53 CHARS=""                # Characters displayed on the beginning of show line
  54 CCHARS="$NORMAL"        # Color of these characters (look at /etc/sysconfig/init-colors.gentoo example)
  55
  56 # Source configuration if available - may override default values
  57 [ -r /etc/sysconfig/init-colors ] && . /etc/sysconfig/init-colors
  58 [ -r /etc/sysconfig/system ] && . /etc/sysconfig/system
  59 [ -r /etc/sysconfig/bootsplash ] && . /etc/sysconfig/bootsplash
  60
  61 # if initscript is invoked via bash, enable RedHat/Fedora compatibility
  62 # RC_FEDORA is "set" if enabled and "unset" when not, but it's "value" is always empty
  63 # this is useful for inline constructs
  64 if [ "${BASH_VERSION+set}" = "set" ]; then
  65         RC_LOGGING=yes
  66         FASTRC=no
  67         RC_FEDORA=
  68 else
  69         unset RC_FEDORA || :
  70 fi
  71
  72 if [ -z "$VSERVER" -o "$VSERVER" = "detect" ]; then
  73         {
  74                 while read _f _ctx; do
  75                         [ "$_f" = "VxID:" -o "$_f" = "s_context:" ] && break
  76                 done </proc/self/status
  77         } 2>/dev/null
  78         if [ -z "$_ctx" -o "$_ctx" = "0" ]; then
  79                 VSERVER=no
  80         else
  81                 VSERVER=yes
  82         fi
  83         unset _f _ctx
  84 fi
  85
  86 # VSERVER_ISOLATION_NET = isolation only inside of vserver guests
  87 if [ -z "$VSERVER_ISOLATION_NET" -o "$VSERVER_ISOLATION_NET" = "detect" ]; then
  88         VSERVER_ISOLATION_NET=no
  89         if [ "$VSERVER" = "yes" ]; then
  90                 if [ -f /proc/self/nsproxy ]; then
  91                         # older kernels
  92                         {
  93                                 while read _t _data; do
  94                                         [ "$_t" = "net:" ] && break
  95                                 done < /proc/self/nsproxy
  96                         } 2> /dev/null
  97                         if [ "${_data##*\(}" = "I)" ]; then
  98                                 VSERVER_ISOLATION_NET=yes
  99                         fi
 100                 elif [ -f /proc/self/ninfo ]; then
 101                         # newer kernels
 102                         {
 103                                 while read _t _data; do
 104                                         [ "$_t" = "NCaps:" ] && break
 105                                 done < /proc/self/ninfo
 106                         } 2> /dev/null
 107                         if [ "${_t}" = "NCaps:" ]; then
 108                                 VSERVER_ISOLATION_NET=yes
 109                         fi
 110                 else
 111                         # assume (very?) old kernel mode
 112                         VSERVER_ISOLATION_NET=yes
 113                 fi
 114                 unset _f _data
 115         fi
 116 fi
 117
 118 # we need to know in functions if we were called from a terminal
 119 if [ -z "$ISATTY" ]; then
 120         [ -t ] && ISATTY=yes || ISATTY=no
 121         export ISATTY
 122 fi
 123
 124 is_yes() {
 125         # Test syntax
 126         if [ $# = 0 ]; then
 127                 msg_usage " is_yes {value}"
 128                 return 2
 129         fi
 130
 131         # Check value
 132         case "$1" in
 133         yes|Yes|YES|true|True|TRUE|on|On|ON|Y|y|1)
 134                 # true returns zero
 135                 return 0
 136                 ;;
 137         *)
 138                 # false returns one
 139                 return 1
 140                 ;;
 141         esac
 142 }
 143
 144 is_no() {
 145         # Test syntax
 146         if [ $# = 0 ]; then
 147                 msg_usage " is_no {value}"
 148                 return 2
 149         fi
 150
 151         case "$1" in
 152         no|No|NO|false|False|FALSE|off|Off|OFF|N|n|0)
 153                 # true returns zero
 154                 return 0
 155                 ;;
 156         *)
 157                 # false returns one
 158                 return 1
 159                 ;;
 160         esac
 161 }
 162
 163 # checks if file is empty
 164 # empty lines and lines beginning with hash are ignored
 165 is_empty_file() {
 166         [ -s "$1" ] || return 0
 167         grep -vqE "^(#|[[:blank:]]*$)" "$1" && return 1 || return 0
 168 }
 169
 170 # returns OK if $1 contains $2
 171 strstr() {
 172         [ "${1#*$2*}" = "$1" ] && return 1
 173         return 0
 174 }
 175
 176 # Apply sysctl settings, including files in /etc/sysctl.d
 177 apply_sysctl() {
 178         if [ -x /lib/systemd/systemd-sysctl ]; then
 179                 /lib/systemd/systemd-sysctl
 180                 return
 181         fi
 182
 183         local file
 184         for file in /usr/lib/sysctl.d/*.conf; do
 185                 [ -f /run/sysctl.d/${file##*/} ] && continue
 186                 [ -f /etc/sysctl.d/${file##*/} ] && continue
 187                 test -f "$file" && sysctl -q -e -p "$file"
 188         done
 189         for file in /run/sysctl.d/*.conf; do
 190                 [ -f /etc/sysctl.d/${file##*/} ] && continue
 191                 test -f "$file" && sysctl -q -e -p "$file"
 192         done
 193         for file in /etc/sysctl.d/*.conf; do
 194                 test -f "$file" && sysctl -q -e -p "$file"
 195         done
 196         sysctl -q -e -p /etc/sysctl.conf
 197 }
 198
 199 if is_yes "$FASTRC" || is_yes "$IN_SHUTDOWN"; then
 200         RC_LOGGING=no
 201 fi
 202
 203 if is_no "$RC_LOGGING"; then
 204         initlog() {
 205                 RESULT=0
 206                 while [ "$1" != "${1##-}" ]; do
 207                         case $1 in
 208                         -c)
 209                                 shift
 210                                 $1
 211                                 RESULT=$?
 212                                 break
 213                                 ;;
 214                         *)
 215                                 shift
 216                                 ;;
 217                         esac
 218                 done
 219                 return $RESULT
 220         }
 221 fi
 222
 223 kernelver() {
 224         local _x _y _z v v1 old_IFS ver
 225         {
 226                 read _x _y v _z
 227                 old_IFS=$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
 236                 ver=${3}
 237                 while [ ${#ver} -lt 3 ]; do ver="0$ver"; done
 238                 ver="$2$ver"
 239                 while [ ${#ver} -lt 6 ]; do ver="0$ver"; done
 240                 ver="$1$ver"
 241                 while [ ${#ver} -lt 9 ]; do ver="0$ver"; done
 242                 echo $ver
 243         } < /proc/version
 244 }
 245
 246 kernelverser() {
 247         local _x _y _z v v1 old_IFS ver
 248         {
 249                 read _x _y v _z
 250                 old_IFS=$IFS
 251                 # strip _* or -* from versions like: "2.6.25_vanilla-1", "2.6.25-1"
 252                 IFS='_-'
 253                 set -- $v
 254                 v1=${1}
 255                 IFS='.'
 256                 set -- $v1
 257                 IFS=$old_IFS
 258                 ver=$2
 259                 while [ ${#ver} -lt 3 ]; do ver="0$ver"; done
 260                 ver="$1$ver"
 261                 while [ ${#ver} -lt 6 ]; do ver="0$ver"; done
 262                 echo $ver
 263         } </proc/version
 264 }
 265
 266 kernelvermser() {
 267         local _x _y _z v v1 old_IFS ver
 268         {
 269                 read _x _y v _z
 270                 old_IFS=$IFS
 271                 # strip _* or -* from versions like: "2.6.25_vanilla-1", "2.6.25-1"
 272                 IFS='_-'
 273                 set -- $v
 274                 v1=${1}
 275                 IFS='.'
 276                 set -- $v1
 277                 IFS=$old_IFS
 278                 ver="$1"
 279                 while [ ${#ver} -lt 3 ]; do ver="0$ver"; done
 280                 echo $ver
 281         } </proc/version
 282 }
 283
 284 # Colors workaround
 285 termput() {
 286         is_yes "$ISATTY" || return
 287
 288         if is_yes "$FASTRC" || is_no "$TPUT"; then
 289                 case "$1" in
 290                 hpa)
 291                         echo -ne "\033[$(($2+1))G"
 292                         ;;
 293                 cuu*)
 294                         echo -ne "\033[${2}A"
 295                         ;;
 296                 el)
 297                         echo -ne "\033[0K"
 298                         ;;
 299                 setaf)
 300                         local ISBOLD
 301                         if [ -n "$3" ]; then
 302                                 ISBOLD="$3"
 303                         else
 304                                 ISBOLD="$NOBOLD";
 305                         fi
 306                         is_yes "$COLOR_INIT" && echo -ne "\033[${ISBOLD};3${2}m"
 307                         ;;
 308                 op)
 309                         termput setaf $NORMAL
 310                         ;;
 311                 esac
 312         else
 313                 case "$1" in
 314                 hpa | cuu* | el)
 315                         tput "$@"
 316                         ;;
 317                 setaf)
 318                         if [ "$3" = "1" ]; then tput bold; else tput sgr0; fi
 319                         is_yes "$COLOR_INIT" && tput setaf "$2"
 320                         ;;
 321                 op)
 322                         termput setaf $NORMAL
 323                         ;;
 324                 esac
 325         fi
 326 }
 327
 328 if [ ! -x /bin/printf ]; then
 329         # printf equivalent
 330         # FIXME: buggy when single or double quotes in message!
 331         printf() {
 332                 local text m
 333                 text="$1"
 334                 shift
 335                 if [ $# -gt 0 ]; then
 336                         m="$1"
 337                         shift
 338                         while [ $# -gt 0 ]; do
 339                                 m="$m\",\"$1"
 340                                 shift
 341                         done
 342                 fi
 343                 awk "BEGIN {printf \"$text\", \"$m\"; }"
 344         }
 345 fi
 346
 347 # National language support function
 348 nls() {
 349         local msg_echo nls_domain text message
 350         msg_echo='\n'
 351         nls_domain="$NLS_DOMAIN"
 352         while [ "$1" != "${1##-}" ]; do
 353                 case "$1" in
 354                 --nls-domain)
 355                         shift
 356                         nls_domain="$1"
 357                         shift
 358                         ;;
 359                 -n)
 360                         msg_echo=''
 361                         shift
 362                         ;;
 363                 esac
 364         done
 365         message="$1"
 366         shift
 367
 368         # empty message, so we return --misiek
 369         if [ -z "$message" ]; then
 370                 echo -en "$msg_echo"
 371                 return
 372         fi
 373
 374         if is_yes "$GETTEXT"; then
 375                 message=$(TEXTDOMAINDIR="/etc/sysconfig/locale" gettext -e --domain="${nls_domain:-rc-scripts}" "$message")
 376         fi
 377
 378         printf "$message" "$@"
 379         echo -en "$msg_echo"
 380 }
 381
 382 rc_splash() {
 383         local action="$1"
 384
 385         if ! is_no "$BOOT_SPLASH" && ! is_yes "$VSERVER"; then
 386                 [ -x /bin/splash ] && /bin/splash "$action"
 387         fi
 388
 389         : $((progress++))
 390 }
 391
 392 msg_network_down() {
 393         nls "ERROR: Networking is down. %s can't be run." "$1" >&2
 394 }
 395
 396 msg_starting() {
 397         show "Starting %s service" "$1"
 398 }
 399
 400 msg_already_running() {
 401         nls "%s service is already running." "$1"
 402 }
 403
 404 msg_stopping() {
 405         show "Stopping %s service" "$1"
 406 }
 407
 408 msg_not_running() {
 409         nls "%s service is not running." "$1"
 410 }
 411
 412 msg_reloading() {
 413         show "Reloading %s service" "$1"
 414 }
 415
 416 msg_usage() {
 417         nls "Usage: %s" "$*"
 418 }
 419
 420 # Some functions to handle PLD Linux-style messages
 421 show() {
 422         local text len time
 423
 424         if is_yes "$RC_UPTIME"; then
 425                 time=$(awk '{printf("[%8.2f] ", $1)}' /proc/uptime)
 426         fi
 427
 428         if is_no "$FASTRC" && is_yes "$GETTEXT"; then
 429                 text=$time$(nls -n "$@")
 430         else
 431                 text=$time$(printf "$@")
 432         fi
 433         len=${#text}
 434         while [ $((len++)) -lt $INIT_COL ]; do
 435                 text="$text."
 436         done
 437         if [ -n "$CHARS" ]; then
 438                 termput setaf $CCHARS
 439                 echo -n "$CHARS"
 440                 termput op
 441         fi
 442         echo -n "$text"
 443 }
 444
 445 deltext() {
 446         termput hpa $INIT_COL
 447 }
 448
 449 # Displays message in square brackests ("[ DONE ]"). Takes two arguments.
 450 # First is the text to display, second is color number to use (argument to
 451 # tput setaf). If second argument is not given, default (2, green) will be
 452 # used).
 453 progress() {
 454         local COLOR
 455         if [ -n "$2" ]; then
 456                 COLOR="$2"
 457         else
 458                 COLOR="$CDONE"
 459         fi
 460         deltext
 461         echo -n "$(termput setaf $CBRACKETS)[$(termput setaf $COLOR) $(nls --nls-domain rc-scripts "$1") $(termput setaf $CBRACKETS)]$(termput op)"
 462 }
 463
 464 busy() {
 465         echo -n "$_busy"
 466 }
 467
 468 ok() {
 469         echo -ne "$_ok${RC_FEDORA+\\r}${RC_FEDORA-\\n}"
 470 }
 471
 472 started() {
 473         echo "$_started"
 474 }
 475
 476 fail() {
 477         echo -ne "$_fail${RC_FEDORA+\\r}${RC_FEDORA-\\n}"
 478         return 1
 479 }
 480
 481 died() {
 482         echo "$_died"
 483         return 1
 484 }
 485
 486 # Check if $pid (could be plural) are running
 487 checkpid() {
 488         while [ "$1" ]; do
 489                 [ -d "/proc/$1" ] && return 0
 490                 shift
 491         done
 492         return 1
 493 }
 494
 495 # - outside chroot get only those processes, which are outside chroot.
 496 # - inside chroot get only those processes, which are inside chroot.
 497 # - don't filter out pids which do not have corresponding running processes (process died etc)
 498 # (note: some processes like named are chrooted but run outside chroot)
 499 # - do nothing inside vserver
 500 filter_chroot() {
 501         # filter by pid namespace if such dir exists for current process
 502         # we do filter in containers as stacked containers are possible with LXC
 503         if [ -d /proc/$$/ns ]; then
 504                 local pids
 505                 pids=$(filter_ns "$@") && set -- "$pids"
 506         fi
 507
 508         if is_yes "$VSERVER"; then
 509                 echo $@
 510                 return
 511         fi
 512
 513         if [ $# -lt 1 -o ! -d /proc/1 ]; then
 514                 echo $@
 515                 return
 516         fi
 517
 518         local root_dir good_pids="" good_add_pid
 519         for root_pid in $@; do
 520                 root_dir=$(resolvesymlink /proc/${root_pid}/root)
 521                 if [ -n "$root_dir" ]; then
 522                         good_add_pid=1
 523                         if [ -n "${SYSTEM_CHROOTS}" ]; then
 524                                 for r_dir in ${SYSTEM_CHROOTS}; do
 525                                         echo "$root_dir" | grep -q "^${r_dir}" && good_add_pid=0
 526                                 done
 527                         fi
 528                         [ "$good_add_pid" -eq 1 ] && good_pids="$good_pids $root_pid"
 529                 elif [ ! -d "/proc/$root_pid" ]; then
 530                         good_pids="$good_pids $root_pid"
 531                 fi
 532         done
 533         echo $good_pids
 534 }
 535
 536 # similar to filter_chroot, but filter based on /proc/PID/ns/pid value
 537 filter_ns() {
 538         local cur_ns=$(resolvesymlink /proc/$$/ns/pid)
 539         [ "$cur_ns" ] || return 1
 540
 541         local pid ns pids=""
 542         # add pids if it matches current pid namespace
 543         # we should add pids what do not exist (dead processes),
 544         # but not add pids whose namespace does not match
 545         # (processes belonging to different NS do exist in /proc)
 546         for pid in "$@"; do
 547                 if [ ! -d /proc/$pid ]; then
 548                         pids="$pids $pid"
 549                         continue
 550                 fi
 551                 ns=$(resolvesymlink /proc/$pid/ns/pid)
 552                 if [ "$ns" = "$cur_ns" ]; then
 553                         pids="$pids $pid"
 554                 fi
 555         done
 556         echo $pids
 557         return 0
 558 }
 559
 560 # Usage:
 561 # run_cmd Message command_to_run
 562 # run_cmd -a Message command_to_run
 563 # run_cmd --user "username" "Message" command_to_run
 564 run_cmd() {
 565         local force_err=0 exit_code=0 errors user
 566         while [ $# -gt 0 ]; do
 567                 case "$1" in
 568                 -a)
 569                         force_err=1
 570                         ;;
 571                 --user)
 572                         shift
 573                         user=$1
 574                         ;;
 575                 *)
 576                         break
 577                 esac
 578                 shift
 579         done
 580
 581         local message=$1; shift
 582         show "$message"; busy
 583
 584         if errors=$(
 585                 cd /
 586                 export HOME=/tmp TMPDIR=/tmp
 587                 if is_no "$RC_LOGGING"; then
 588                         ${user:+setuidgid -s $user} "$@" 2>&1
 589                 else
 590                         ${user:+setuidgid -s $user} initlog -c "$*" 2>&1
 591                 fi
 592                 ); then
 593                 ok
 594                 log_success "$1 $message"
 595         else
 596                 fail
 597                 log_failed "$1 $message"
 598                 exit_code=1
 599         fi
 600         [ -n "$errors" ] && [ $exit_code -eq 1 -o $force_err -eq 1 ] && echo "$errors"
 601         return $exit_code
 602 }
 603
 604 _daemon_set_ulimits() {
 605         local opt val ksh=${KSH_VERSION:+1}
 606         set -- ${SERVICE_LIMITS:-$DEFAULT_SERVICE_LIMITS}
 607         while [ $# -gt 0 ]; do
 608                 opt=$1
 609                 val=$2
 610                 if [ "$ksh" ]; then
 611                         case "$opt" in
 612                         -Hu)
 613                                 opt=-Hp
 614                         ;;
 615                         -Su)
 616                                 opt=-Sp
 617                         ;;
 618                         -u)
 619                                 opt=-p
 620                         ;;
 621                         esac
 622                 fi
 623                 ulimit $opt $val
 624                 shift 2
 625         done
 626 }
 627
 628 # A function to start a program (now it's useful on read-only filesystem too)
 629 daemon() {
 630         local errors="" prog="" end="" waitname="" waittime=""
 631         local exit_code=0
 632         local nice=$SERVICE_RUN_NICE_LEVEL
 633         local fork user closefds redirfds pidfile makepid chdir=/
 634
 635         # NOTE: if you wonder how the shellish (by syntax) $prog works in ssd mode,
 636         # then the answer is: it totally ignores $prog and uses "$@" itself.
 637
 638         while [ $# -gt 0 ]; do
 639                 case $1 in
 640                 '')
 641                 msg_usage " daemon [--check] [--user user] [--fork] [--chdir directory] [--closefds] [--redirfds] [--waitforname procname] [--waitfortime seconds] [--pidfile file] [--makepid] [+/-nicelevel] {program} <program args>"
 642                         return 2
 643                         ;;
 644                 --check)
 645                         # for compatibility with redhat/mandrake
 646                         nls "warning: --check option is ignored!"
 647                         shift
 648                         ;;
 649                 --user)
 650                         shift
 651                         user=$1
 652                         ;;
 653                 --fork)
 654                         fork=1
 655                         end='&'
 656                         ;;
 657                 --chdir)
 658                         shift
 659                         chdir=$1
 660                         ;;
 661                 --closefds)
 662                         closefds=1
 663                         ;;
 664                 --redirfds)
 665                         redirfds=1
 666                         ;;
 667                 --waitforname)
 668                         shift
 669                         waitname="$1"
 670                         ;;
 671                 --waitfortime)
 672                         shift
 673                         waittime="$1"
 674                         ;;
 675                 --pidfile=?*)
 676                         pidfile="${1#--pidfile=}"
 677                         case "$pidfile" in /*);; *) pidfile="/var/run/$pidfile";; esac
 678                         ;;
 679                 --pidfile)
 680                         shift
 681                         pidfile="$1"
 682                         case "$pidfile" in /*);; *) pidfile="/var/run/$pidfile";; esac
 683                         ;;
 684                 --makepid)
 685                         makepid=1
 686                         ;;
 687                 -*|+*)
 688                         nice=$1
 689                         shift
 690                         break
 691                         ;;
 692                 *)
 693                         break
 694                         ;;
 695                 esac
 696                 shift
 697         done
 698         if [ -n "$user" -a "$user" != "root" ]; then
 699                 prog="/bin/su $user -s /bin/sh -c \""
 700         fi
 701         if [ "$fork" = "1" ]; then
 702                 prog="/usr/bin/setsid ${prog:-sh -c \"}"
 703         fi
 704         # If command to execute ends with quotation mark, add remaining
 705         # arguments and close quotation.
 706         if [ "$prog" != "${prog%\"}" ]; then
 707                 prog="$prog $*$end\""
 708         else
 709                 prog="$prog $*$end"
 710         fi
 711
 712         _daemon_set_ulimits
 713
 714         [ -z "$DEFAULT_SERVICE_UMASK" ] && DEFAULT_SERVICE_UMASK=022
 715         [ -z "$DEFAULT_SERVICE_RUN_NICE_LEVEL" ] && DEFAULT_SERVICE_RUN_NICE_LEVEL=0
 716
 717         # And start it up.
 718         busy
 719         cd $chdir
 720         [ -n "$SERVICE_CPUSET" ] && is_yes "$CPUSETS" && echo $$ > "/dev/cpuset/${SERVICE_CPUSET}/tasks"
 721         if errors=$(
 722                 umask ${SERVICE_UMASK:-$DEFAULT_SERVICE_UMASK};
 723                 export USER=root HOME=/tmp TMPDIR=/tmp
 724
 725                 nice=${nice:-$DEFAULT_SERVICE_RUN_NICE_LEVEL}
 726                 nice=${nice:-0}
 727
 728                 # make nice level absolute, not to be dependant of nice level of shell where service started
 729                 nice=$(($nice - $(nice)))
 730
 731                 if [ "$closefds" = 1 ]; then
 732                         exec 1>&-
 733                         exec 2>&-
 734                         exec 0<&-
 735                 elif [ "$redirfds" = 1 ]; then
 736                         exec 1>/dev/null
 737                         exec 2>/dev/null
 738                         exec 0</dev/null
 739                 else
 740                         exec 2>&1
 741                         exec 0</dev/null
 742                 fi
 743
 744                 if is_no "$RC_LOGGING"; then
 745                         prog=$1; shift
 746                         if [ ! -x $prog ]; then
 747                                 logger -t rc-scripts -p daemon.debug "daemon: Searching PATH for $prog, consider using full path in initscript"
 748                                 local a o=$IFS
 749                                 IFS=:
 750                                 for a in $PATH; do
 751                                         if [ -x $a/$prog ]; then
 752                                                 prog=$a/$prog
 753                                                 break
 754                                         fi
 755                                 done
 756                                 IFS=$o
 757                         fi
 758                         set -- "$prog" "$@"
 759
 760                         # use setsid to detach from terminal,
 761                         # needs pidfile or ssd would check setsid program instead of real program
 762                         if [ "$pidfile" ]; then
 763                                 set -- /usr/bin/setsid "$@"
 764                         fi
 765
 766                         prog=$1; shift
 767                         /sbin/start-stop-daemon -q --start \
 768                                 --nicelevel $nice \
 769                                 ${pidfile:+--pidfile $pidfile} \
 770                                 ${makepid:+--make-pidfile} \
 771                                 ${user:+--chuid $user} \
 772                                 ${chdir:+--chdir "$chdir"} \
 773                                 ${fork:+--background} \
 774                                 ${SERVICE_DROPCAPS:+--dropcap $SERVICE_DROPCAPS} \
 775                                 --exec "$prog" \
 776                                 -- "$@"
 777                 else
 778                         nice -n $nice initlog -c "$prog" 2>&1 </dev/null
 779                 fi
 780                 ); then
 781
 782                 if [ -n "$waitname" -a -n "$waittime" ]; then
 783                         # Save basename.
 784                         base=${waitname##*/}
 785                         # Find pid.
 786                         pid=$(pidofproc "$waitname" "$pidfile")
 787                         [ -z "$pid" ] && pid=$(pidofproc "$base" "$pidfile")
 788                         i=0
 789                         while [ "$i" -lt "$waittime" ]; do
 790                                 i=$((i + 1))
 791                                 checkpid $pid && break
 792                                 sleep 1
 793                         done
 794                 fi
 795                 log_success "$1 startup"
 796                 ok
 797         else
 798                 exit_code=1
 799                 fail
 800                 log_failed "$1 startup"
 801                 [ -n "$errors" ] && echo >&2 "$errors"
 802         fi
 803         return $exit_code
 804 }
 805
 806 # A function to stop a program.
 807 killproc() {
 808         local notset killlevel base pid pidfile result delay=3 try
 809         # Test syntax.
 810         if [ $# = 0 ]; then
 811                 msg_usage " killproc [--pidfile|-p PIDFILE] [-d DELAY] {program} [-SIGNAME]"
 812                 return 2
 813         fi
 814
 815         while [ "$1" != "${1##-}" ]; do
 816                 case $1 in
 817                 -d)
 818                         delay="$2"
 819                         shift 2
 820                         ;;
 821                 --pidfile|-p)
 822                         pidfile="$2"
 823                         case "$pidfile" in /*);; *) pidfile="/var/run/$pidfile";; esac
 824                         shift 2
 825                         ;;
 826                 --waitforname)
 827                         waitname="$2"
 828                         shift 2
 829                         ;;
 830                 --waitfortime)
 831                         waittime="$2"
 832                         shift 2
 833                         ;;
 834                 esac
 835         done
 836
 837         busy
 838
 839         local notset=0
 840         # check for second arg to be kill level
 841         if [ -n "$2" ]; then
 842                 killlevel=$2
 843         else
 844                 notset=1
 845         fi
 846
 847         # experimental start-stop-daemon based killing.
 848         # works only with pidfile
 849         if is_no "$RC_LOGGING" && [ "$pidfile" ]; then
 850                 local sig=${killlevel:--TERM} retry
 851                 # do not retry if signal is specified,
 852                 # as otherwise impossible to send HUP if process pid stays in pidfile.
 853                 # however, do retry if --waitfortime was specified
 854                 if [ "${killlevel+set}" = "set" ] && [ -z "$waittime" ]; then
 855                         # if we send HUP it's ok if process does not die
 856                         retry="--oknodo"
 857                 else
 858                         local waitretry
 859                         : ${waittime=10}
 860                         : ${waitretry=$(($waittime * 2))}
 861
 862                         # 1. kill with $sig, wait $delay
 863                         # 2. kill with $sig, wait $waittime
 864                         # 3. kill with KILL, wait $waitretry
 865                         retry="--retry ${sig#-}/${delay}/${sig#-}/${waittime}/KILL/${waitretry}"
 866                 fi
 867                 /sbin/start-stop-daemon -q --stop \
 868                         $retry \
 869                         ${waitname:+--name $waitname} \
 870                         -s ${sig#-} \
 871                         ${pidfile:+--pidfile $pidfile}
 872                 result=$?
 873                 if [ "$result" -eq 0 ]; then
 874                         ok
 875                 else
 876                         fail
 877                 fi
 878                 return $result
 879         fi
 880
 881
 882         # Save basename.
 883         base=${1##*/}
 884
 885         # Find pid.
 886         pid=$(pidofproc "$1" "$pidfile")
 887         [ -z "$pid" ] && pid=$(pidofproc "$base" "$pidfile")
 888
 889         # Kill it.
 890         if [ -n "$pid" -a "$pid" != "$$" ] && checkpid $pid 2>&1; then
 891                 if [ "$notset" = "1" ]; then
 892                         if checkpid $pid 2>&1; then
 893                                 # TERM first, then KILL if not dead
 894                                 kill -TERM $pid
 895                                 usleep 50000
 896
 897                                 try=0
 898                                 while [ $try -lt $delay ]; do
 899                                         checkpid $pid || break
 900                                         sleep 1
 901                                         try=$((try+1))
 902                                 done
 903                                 if checkpid $pid; then
 904                                         # XXX: SIGKILL is sent already on 4th second!
 905                                         # HARMFUL for example to mysqld (which is already workarounded)
 906                                         kill -KILL $pid
 907                                         usleep 50000
 908                                 fi
 909                         fi
 910                         checkpid $pid
 911                         result=$?
 912                         if [ "$result" -eq 0 ]; then
 913                                 fail
 914                                 log_failed "$1 shutdown"
 915                         else
 916                                 ok
 917                                 log_success "$1 shutdown"
 918                         fi
 919                         result=$(( ! $result ))
 920                 else
 921                         # use specified level only
 922                         if checkpid $pid > /dev/null 2>&1; then
 923                                 kill $killlevel $pid
 924                                 result=$?
 925                                 if [ "$result" -eq 0 ]; then
 926                                         ok
 927                                         log_success "$1 got $killlevel"
 928                                 else
 929                                         result=7
 930                                         fail
 931                                         log_failed "$1 didn't get $killlevel"
 932                                 fi
 933                         else
 934                                 result=7
 935                                 died
 936                                 log_failed "$1 shutdown"
 937                         fi
 938                 fi
 939         else
 940                 died
 941                 log_failed "$1 shutdown"
 942                 result=7
 943         fi
 944
 945         if [ -n "$waitname" -a -n "$waittime" ]; then
 946                 # Save basename.
 947                 base=${waitname##*/}
 948                 # Find pid.
 949                 pid=$(pidofproc "$waitname" "$pidfile")
 950                 [ -z "$pid" ] && pid=$(pidofproc "$base" "$pidfile")
 951                 i=0
 952                 while [ "$i" -lt "$waittime" ]; do
 953                         i=$(( i + 1 ))
 954                         checkpid $pid && sleep 1 || break
 955                 done
 956         fi
 957
 958         # Remove pid file if any.
 959         if [ "$notset" = "1" ]; then
 960                 rm -f /var/run/${base}.pid
 961         fi
 962
 963         return $result
 964 }
 965
 966 # A function to find the pid of a program.
 967 pidofproc() {
 968         local pid pidfile base=${1##*/}
 969         pidfile="$base.pid"
 970         [ -n "$2" ] && pidfile="$2"
 971
 972         # Test syntax.
 973         if [ $# = 0 ]; then
 974                 msg_usage " pidofproc {program}"
 975                 return 2
 976         fi
 977
 978         # First try pidfile or "/var/run/*.pid"
 979         case "$pidfile" in
 980                 /*)pidfile="${pidfile}";;
 981                 *) pidfile="/var/run/$pidfile";;
 982         esac
 983         if [ -f "${pidfile}" ]; then
 984                 local p pid=""
 985                 for p in $(< "${pidfile}"); do
 986                         [ -z "$(echo "$p" | awk '{gsub(/[0-9]/,"");print;}')" ] && pid="$pid $p"
 987                 done
 988         fi
 989
 990         # Next try "pidof"
 991         [ -z "$pid" ] && pidof -o $$ -o $PPID -o %PPID -x "$1"
 992         pid=$(filter_chroot $pid)
 993         echo $pid
 994 }
 995
 996 # status [--pidfile PIDFILE] {subsys} [{daemon}]"
 997 status() {
 998         local pid subsys daemon cpuset_msg pidfile
 999         if [ "$1" = "--pidfile" -o "$1" = "-p" ]; then
1000                 pidfile=$2
1001                 case "$pidfile" in /*);; *) pidfile="/var/run/$pidfile";; esac
1002                 shift 2
1003         fi
1004
1005         subsys=$1
1006         daemon=${2:-$subsys}
1007
1008         # Test syntax.
1009         if [ $# = 0 ]; then
1010                 msg_usage " status [--pidfile PIDFILE] {subsys} [{daemon}]"
1011                 return 2
1012         fi
1013
1014         # if pidfile specified, pid must be there
1015         if [ "$pidfile" ]; then
1016                 [ -f "$pidfile" ] && read pid < $pidfile
1017                 # filter_chroot does not filter out dead pids, so this extra check, see t/status-pidfile.sh
1018                 if [ ! -d "/proc/$pid" ]; then
1019                         pid=
1020                 fi
1021         else
1022                 pid=$(pidof -o $$ -o $PPID -o %PPID -x $daemon)
1023         fi
1024         pid=$(filter_chroot $pid)
1025
1026         if [ "$pid" ]; then
1027                 cpuset_msg="..."
1028                 if [ -n "$SERVICE_CPUSET" ] && is_yes "$CPUSETS"; then
1029                         if grep -q "$pid" "/dev/cpuset/${SERVICE_CPUSET}/tasks"; then
1030                                 cpuset_msg=$(nls " in cpuset %s..." "$SERVICE_CPUSET")
1031                         else
1032                                 cpuset_msg=$(nls " outside of configured cpuset %s..." "$SERVICE_CPUSET")
1033                         fi
1034                 fi
1035                 nls "%s (pid %s) is running%s" "$daemon" "$pid" "$cpuset_msg"
1036                 return 0
1037         fi
1038
1039         # Next try "/var/run/*.pid" files; if pidfile is not set
1040         local base=${daemon##*/}
1041         if [ -z "$pidfile" -a -f /var/run/${base}.pid ]; then
1042                 read pid < /var/run/${base}.pid
1043                 pid=$(filter_chroot $pid)
1044                 if [ "$pid" ]; then
1045                         nls "%s dead but pid file (%s) exists" "$subsys" /var/run/${base}.pid
1046                         return 1
1047                 fi
1048         fi
1049
1050         # See if /var/lock/subsys/$subsys exists
1051         if [ -f /var/lock/subsys/$subsys ]; then
1052                 nls "daemon %s dead but subsys (%s) locked" "$daemon" "$subsys"
1053                 return 2
1054         fi
1055         nls "%s is stopped" "$subsys"
1056         return 3
1057 }
1058
1059 # Confirm whether we really want to run this service
1060 confirm() {
1061         local answer
1062         nls -n "Start service %s (Y)es/(N)o/(C)ontinue? [Y] " "$1"
1063         read answer
1064         case $answer in
1065         y|Y|t|T|j|J|"")
1066                 return 0
1067                 ;;
1068         c|C|k|K|w|W)
1069                 return 2
1070                 ;;
1071         n|N)
1072                 return 1
1073                 ;;
1074         *)
1075                 confirm $1
1076                 return $?
1077                 ;;
1078         esac
1079 }
1080
1081 # module is needed (ie. is requested, is available and isn't loaded already)
1082 is_module() {
1083         # module name without .o at end
1084         if ! lsmod | grep -q "$1"; then
1085                 if ls -1R /lib/modules/$(uname -r)/ 2> /dev/null | grep -q "^${1}.\(\|k\)o\(\|.gz\)"; then
1086                         # true
1087                         return 0
1088                 fi
1089         fi
1090         # false
1091         return 1
1092 }
1093
1094 _modprobe() {
1095         local parsed single die args foo result
1096         parsed=no
1097         while is_no "$parsed"; do
1098                 case "$1" in
1099                 "single")
1100                         single=yes
1101                         shift
1102                         ;;
1103                 "die")
1104                         die=yes
1105                         shift
1106                         ;;
1107                 -*)
1108                         args="$args $1"
1109                         shift
1110                         ;;
1111                 *)
1112                         parsed=yes
1113                         ;;
1114                 esac
1115         done
1116         if is_yes "${single}"; then
1117                 foo="$@"
1118                 show "Loading %s kernel module(s)" "$foo"
1119                 busy
1120         fi
1121         if [ -x /sbin/modprobe ]; then
1122                 /sbin/modprobe -s $args "$@"
1123                 result=$?
1124         else
1125                 deltext; fail
1126                 result=1
1127         fi
1128         if is_yes "${single}"; then
1129                 deltext
1130                 if [ $result = "0" ]; then
1131                         is_yes "$single" && ok
1132                 else
1133                         fail
1134                         if is_yes "$die"; then
1135                                 nls "Could not load %s kernel module(s)" "$@"
1136                                 exit 1
1137                         fi
1138                 fi
1139         fi
1140 }
1141
1142 if is_no "$RC_LOGGING"; then
1143         log_success() {
1144                 :
1145         }
1146
1147         log_failed() {
1148                 :
1149         }
1150 else
1151         log_success() {
1152                 initlog -n $0 -s "$1 $2" -e 1
1153         }
1154
1155         log_failed() {
1156                 initlog -n $0 -s "$1 $2" -e 2
1157         }
1158 fi
1159
1160 # Check if any flavor of portmapper is running
1161 check_portmapper() {
1162         if [ -x /usr/sbin/rpcinfo ]; then
1163                 if /usr/sbin/rpcinfo -p localhost >/dev/null 2>/dev/null; then
1164                         return 0
1165                 else
1166                         return 1
1167                 fi
1168         elif [ -z "$(pidof portmap)" -a -z "$(pidof rpcbind)" ]; then
1169                 return 1
1170         fi
1171         return 0
1172 }
1173
1174 # is_fsmounted fstype mntpoint
1175 # Check if filesystem fstype is mounted on mntpoint
1176 is_fsmounted() {
1177         local fstype=$1
1178         local mntpoint=$2
1179
1180         [ -n "$fstype" -a -n "$mntpoint" ] || return 1
1181
1182         if [ -r /proc/mounts ]; then
1183                 grep -qE "[[:blank:]]$mntpoint[[:blank:]]+$fstype[[:blank:]]" /proc/mounts
1184                 return $?
1185         else
1186                 if [ "$(stat -L -f -c %T $mntpoint 2>/dev/null)" = "$fstype" ]; then
1187                         return 0
1188                 else
1189                         return 1
1190                 fi
1191         fi
1192 }
1193
1194 # __umount_loop awk_program fstab_file first_msg retry_msg umount_args
1195 # awk_program should process fstab_file and return a list of fstab-encoded
1196 # paths; it doesn't have to handle comments in fstab_file.
1197 __umount_loop() {
1198         local remaining sig=
1199         local retry=3 count
1200
1201         remaining=$(LC_ALL=C awk "/^#/ {next} $1" "$2" | sort -r)
1202         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
1203                 if [ "$retry" -eq 3 ]; then
1204                         run_cmd "$3" fstab-decode umount $5 $remaining
1205                 else
1206                         run_cmd "$4" fstab-decode umount $5 $remaining
1207                 fi
1208                 count=4
1209                 remaining=$(LC_ALL=C awk "/^#/ {next} $1" "$2" | sort -r)
1210                 while [ "$count" -gt 0 ]; do
1211                         [ -z "$remaining" ] && break
1212                         count=$(($count-1))
1213                         usleep 500000
1214                         remaining=$(LC_ALL=C awk "/^#/ {next} $1" "$2" | sort -r)
1215                 done
1216                 [ -z "$remaining" ] && break
1217                 fstab-decode /bin/fuser -k -m $sig $remaining >/dev/null
1218                 sleep 3
1219                 retry=$(($retry -1))
1220                 sig=-9
1221         done
1222 }
1223
1224 # Similar to __umount loop above, specialized for loopback devices
1225 __umount_loopback_loop() {
1226         local remaining devremaining sig=
1227         local retry=3
1228
1229         remaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $2}' /proc/mounts)
1230         devremaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $1}' /proc/mounts)
1231         while [ -n "$remaining" -a "$retry" -gt 0 ]; do
1232                 if [ "$retry" -eq 3 ]; then
1233                         run_cmd "Unmounting loopback filesystems: " \
1234                                 fstab-decode umount $remaining
1235                 else
1236                         run_cmd "Unmounting loopback filesystems (retry):" \
1237                                 fstab-decode umount $remaining
1238                 fi
1239                 for dev in $devremaining ; do
1240                         losetup $dev > /dev/null 2>&1 && \
1241                                 run_cmd "Detaching loopback device $dev: " \
1242                                 losetup -d $dev
1243                 done
1244                 remaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $2}' /proc/mounts)
1245                 devremaining=$(awk '$1 ~ /^\/dev\/loop/ && $2 != "/" {print $1}' /proc/mounts)
1246                 [ -z "$remaining" ] && break
1247                 fstab-decode /bin/fuser -k -m $sig $remaining >/dev/null
1248                 sleep 3
1249                 retry=$(($retry -1))
1250                 sig=-9
1251         done
1252 }
1253
1254 rc_cache_init() {
1255         # If we have cachefile, use it.
1256         # If we don't, create memory variables and try to save silently,
1257         local cachefile='/var/cache/rc-scripts/msg.cache'
1258
1259         local term
1260         if is_yes "$ISATTY"; then
1261                 term=$TERM
1262         else
1263                 term=dumb
1264         fi
1265
1266         # We create $check variable which is used to invalidate the cache.
1267         # The $check contains user locale and terminal.
1268         local check="$term.$LC_MESSAGES.$INIT_COL"
1269
1270         if [ -f "$cachefile" -a "$cachefile" -nt /etc/sysconfig/system -a "$cachefile" -nt /etc/sysconfig/init-colors ]; then
1271                 if . "$cachefile" 2>/dev/null; then
1272                         if [ "$check" = "$_check" ]; then
1273                                 return
1274                         fi
1275                 fi
1276         fi
1277
1278         # primitive caching
1279         _busy=$(progress "BUSY" "$CBUSY")
1280         _ok=$(progress "DONE")
1281         _started=$(progress "WORK")
1282         _fail=$(progress "FAIL" "$CFAIL")
1283         _died=$(progress "DIED" "$CFAIL")
1284
1285         # we don't use heredoc, as ksh attempts to create tempfile then
1286         (> "$cachefile" ) 2>/dev/null || return
1287         echo "_busy='$_busy';" >> "$cachefile"
1288         echo "_ok='$_ok';" >> "$cachefile"
1289         echo "_started='$_started';" >> "$cachefile"
1290         echo "_fail='$_fail';" >> "$cachefile"
1291         echo "_died='$_died';" >> "$cachefile"
1292         echo "_check='$check';" >> "$cachefile"
1293 }
1294
1295 rc_gettext_init() {
1296         if [ -z "$GETTEXT" ]; then
1297                 if [ -x /bin/gettext -o -x /usr/bin/gettext ]; then
1298                         GETTEXT=yes
1299                 else
1300                         GETTEXT=no
1301                 fi
1302         fi
1303
1304         if [ -z "$TPUT" ]; then
1305                 if [ -d /usr/share/terminfo ] && [ -x /usr/bin/tput -o -x /bin/tput ]; then
1306                         TPUT=yes
1307                         # check if we are on proper terminal
1308                         tput longname >/dev/null 2>&1 || TPUT=no
1309                 else
1310                         TPUT=no
1311                 fi
1312         fi
1313 }
1314
1315 use_upstart () {
1316         return 1
1317 }
1318 emit () {
1319         return 0
1320 }
1321 is_upstart_task() {
1322         return 1
1323 }
1324 is_upstart_running() {
1325         return 1
1326 }
1327 upstart_start() {
1328         return 1
1329 }
1330 upstart_stop() {
1331         return 1
1332 }
1333 upstart_reload() {
1334         return 0
1335 }
1336 upstart_status() {
1337         return 1
1338 }
1339 _upstart_controlled() {
1340         return 0
1341 }
1342 alias upstart_controlled='_upstart_controlled $0 "$@"'
1343
1344 rc_gettext_init
1345 rc_cache_init
1346
1347 #/*
1348 # * Local variables:
1349 # * mode: sh
1350 # * indent-tabs-mode: notnil
1351 # * End:
1352 # *
1353 # */