Annotation of src/etc/rc, Revision 1.460
1.460 ! rpe 1: # $OpenBSD: rc,v 1.459 2015/08/22 23:32:18 rpe Exp $
1.1 deraadt 2:
1.450 rpe 3: # System startup script run by init on autoboot or after single-user.
4: # Output and error are redirected to console by init, and the console is the
5: # controlling terminal.
1.454 rpe 6:
7: # Turn off Strict Bourne shell.
8: set +o sh
1.1 deraadt 9:
1.131 millert 10: # Subroutines (have to come first).
11:
1.450 rpe 12:
1.456 rpe 13: # Strip in- and whole-line comments from a file.
14: # Strip leading and trailing whitespace if IFS is set.
15: # Usage: stripcom /path/to/file
1.131 millert 16: stripcom() {
1.456 rpe 17: local _file=$1 _line
1.131 millert 18:
1.456 rpe 19: [[ -s $_file ]] || return
20:
21: while read _line ; do
22: _line=${_line%%#*}
23: [[ -n $_line ]] && print -r -- "$_line"
24: done <$_file
1.131 millert 25: }
26:
1.456 rpe 27: # Update resource limits based on login.conf settings.
28: # Usage: update_limit -flag capability
1.265 millert 29: update_limit() {
1.456 rpe 30: local _flag=$1 # ulimit flag
31: local _cap=$2 _val # login.conf capability and its value
32: local _suffix
33:
34: for _suffix in {,-cur,-max}; do
35: _val=$(getcap -f /etc/login.conf -s ${_cap}${_suffix} daemon 2>/dev/null)
36: [[ -n $_val ]] || continue
37: [[ $_val == infinity ]] && _val=unlimited
38:
39: case $_suffix in
40: -cur) ulimit -S $_flag $_val
41: ;;
42: -max) ulimit -H $_flag $_val
43: ;;
44: *) ulimit $_flag $_val
45: return
46: ;;
47: esac
1.265 millert 48: done
49: }
50:
1.457 rpe 51: # Apply sysctl.conf(5) settings.
1.265 millert 52: sysctl_conf() {
1.457 rpe 53: stripcom /etc/sysctl.conf |
54: while read _line; do
55: sysctl "$_line"
1.267 millert 56:
1.457 rpe 57: case $_line in
1.265 millert 58: kern.maxproc=*)
1.457 rpe 59: update_limit -p maxproc;;
1.265 millert 60: kern.maxfiles=*)
1.457 rpe 61: update_limit -n openfiles;;
1.265 millert 62: esac
63: done
64: }
65:
1.457 rpe 66: # Apply mixerctl.conf(5) settings.
1.452 rpe 67: mixerctl_conf() {
1.457 rpe 68: stripcom /etc/mixerctl.conf |
69: while read _line; do
70: mixerctl -q "$_line" 2>/dev/null
1.265 millert 71: done
72: }
73:
1.457 rpe 74: # Apply wsconsctl.conf(5) settings.
1.452 rpe 75: wsconsctl_conf() {
1.457 rpe 76: [[ -x /sbin/wsconsctl ]] || return
1.267 millert 77:
1.457 rpe 78: stripcom /etc/wsconsctl.conf |
79: while read _line; do
1.458 rpe 80: eval "wsconsctl $_line"
1.267 millert 81: done
82: }
83:
1.452 rpe 84: random_seed() {
1.427 bluhm 85: # push the old seed into the kernel
86: dd if=/var/db/host.random of=/dev/random bs=65536 count=1 status=none
87: chmod 600 /var/db/host.random
88: # ... and create a future seed
89: dd if=/dev/random of=/var/db/host.random bs=65536 count=1 status=none
90: # and create a seed file for the boot-loader
91: dd if=/dev/random of=/etc/random.seed bs=512 count=1 status=none
92: chmod 600 /etc/random.seed
1.312 djm 93: }
94:
1.450 rpe 95: # Populate net.inet.(tcp|udp).baddynamic with the contents of /etc/services so
96: # as to avoid randomly allocating source ports that correspond to well-known
1.451 rpe 97: # services.
1.459 rpe 98: # Usage: fill_baddynamic tcp|udp
1.452 rpe 99: fill_baddynamic() {
1.390 halex 100: local _service=$1
1.318 djm 101: local _sysctl="net.inet.${_service}.baddynamic"
1.459 rpe 102:
1.390 halex 103: stripcom /etc/services |
104: {
1.459 rpe 105: _ban=
1.390 halex 106: while IFS=" /" read _name _port _srv _junk; do
1.459 rpe 107: [[ $_srv == $_service ]] || continue
108:
109: _ban="${_ban:+$_ban,}+$_port"
110:
1.390 halex 111: # Flush before argv gets too long
1.459 rpe 112: if ((${#_ban} > 1024)); then
113: sysctl -q "$_sysctl=$_ban"
114: _ban=
1.390 halex 115: fi
116: done
1.459 rpe 117: [[ -n $_ban ]] && sysctl -q "$_sysctl=$_ban"
1.390 halex 118: }
1.318 djm 119: }
120:
1.450 rpe 121: # Start daemon using the rc.d daemon control scripts.
1.451 rpe 122: # Usage: start_daemon daemon1 daemon2 daemon3
1.452 rpe 123: start_daemon() {
1.460 ! rpe 124: local _daemon
! 125:
! 126: for _daemon; do
! 127: eval "_do=\${${_daemon}_flags}"
! 128: [[ $_do != NO ]] && /etc/rc.d/${_daemon} start
1.353 robert 129: done
130: }
131:
1.450 rpe 132: # Generate keys for isakmpd, iked and sshd if the don't exist yet.
1.452 rpe 133: make_keys() {
1.460 ! rpe 134: local _isakmpd_key=/etc/isakmpd/private/local.key
! 135: local _isakmpd_pub=/etc/isakmpd/local.pub
! 136: local _iked_key=/etc/iked/private/local.key
! 137: local _iked_pub=/etc/iked/local.pub
! 138:
! 139: if [[ ! -f $_isakmpd_key ]]; then
! 140: echo -n "openssl: generating isakmpd/iked RSA keys... "
! 141: if openssl genrsa -out $_isakmpd_key 2048 >/dev/null 2>&1 &&
! 142: chmod 600 $_isakmpd_key &&
! 143: openssl rsa -out $_isakmpd_pub -in $_isakmpd_key \
! 144: -pubout >/dev/null 2>&1; then
1.373 deraadt 145: echo done.
146: else
147: echo failed.
148: fi
149: fi
150:
1.460 ! rpe 151: if [[ ! -f $_iked_key ]]; then
1.373 deraadt 152: # Just copy the generated isakmpd key
1.460 ! rpe 153: cp $_isakmpd_key $_iked_key
! 154: chmod 600 $_iked_key
! 155: cp $_isakmpd_pub $_iked_pub
1.373 deraadt 156: fi
157:
158: ssh-keygen -A
159: }
160:
1.450 rpe 161: # Create Unix sockets directories for X if needed and make sure they have
162: # correct permissions.
1.452 rpe 163: setup_X_sockets() {
1.373 deraadt 164: if [ -d /usr/X11R6/lib ]; then
165: for d in /tmp/.X11-unix /tmp/.ICE-unix ; do
166: if [ -d $d ]; then
167: if [ `ls -ld $d | cut -d' ' -f4` \
168: != root ]; then
169: chown root $d
170: fi
171: if [ `ls -ld $d | cut -d' ' -f1` \
172: != drwxrwxrwt ]; then
173: chmod 1777 $d
174: fi
175: elif [ -e $d ]; then
176: echo "Error: $d exists and isn't a directory."
177: else
178: mkdir -m 1777 $d
179: fi
180: done
181: fi
182: }
183:
1.450 rpe 184: # Check filesystems, optionally by using a flag for fsck(8) passed as $1.
1.452 rpe 185: do_fsck() {
1.429 claudio 186: local _flags=$1
187:
188: fsck -p $_flags
189: case $? in
190: 0)
191: ;;
192: 2)
193: exit 1
194: ;;
195: 4)
196: echo "Rebooting..."
197: reboot
198: echo "Reboot failed; help!"
199: exit 1
200: ;;
201: 8)
202: echo "Automatic file system check failed; help!"
203: exit 1
204: ;;
205: 12)
206: echo "Boot interrupted."
207: exit 1
208: ;;
209: 130)
1.450 rpe 210: # Interrupt before catcher installed.
1.429 claudio 211: exit 1
212: ;;
213: *)
214: echo "Unknown error; help!"
215: exit 1
216: ;;
217: esac
218: }
219:
1.450 rpe 220: # End subroutines.
1.131 millert 221:
1.1 deraadt 222: stty status '^T'
223:
1.450 rpe 224: # Set shell to ignore SIGINT (2), but not children; shell catches SIGQUIT (3)
225: # and returns to single user after fsck.
1.1 deraadt 226: trap : 2
1.450 rpe 227: trap : 3 # Shouldn't be needed.
1.1 deraadt 228:
229: HOME=/; export HOME
1.349 robert 230: INRC=1; export INRC
1.1 deraadt 231: PATH=/sbin:/bin:/usr/sbin:/usr/bin
232: export PATH
1.395 deraadt 233:
1.450 rpe 234: # Must set the domainname before rc.conf, so YP startup choices can be made.
1.395 deraadt 235: if [ -f /etc/defaultdomain ]; then
236: domainname `stripcom /etc/defaultdomain`
237: fi
1.108 deraadt 238:
1.450 rpe 239: # Need to get local functions from rc.subr.
1.428 robert 240: FUNCS_ONLY=1 . /etc/rc.d/rc.subr
241:
1.450 rpe 242: # Load rc.conf into scope.
1.428 robert 243: _rc_parse_conf
1.343 robert 244:
1.266 millert 245: if [ X"$1" = X"shutdown" ]; then
1.437 bluhm 246: if echo 2>/dev/null >>/var/db/host.random || \
247: echo 2>/dev/null >>/etc/random.seed; then
248: random_seed
249: else
250: echo warning: cannot write random seed to disk
251: fi
1.416 rpe 252:
1.419 millert 253: # If we are in secure level 0, assume single user mode.
254: if [ `sysctl -n kern.securelevel` -ne 0 ]; then
1.421 schwarze 255: pkg_scripts=${pkg_scripts%%*( )}
1.413 deraadt 256: if [ -n "${pkg_scripts}" ]; then
257: echo -n 'stopping package daemons:'
258: while [ -n "${pkg_scripts}" ]; do
259: _r=${pkg_scripts##* }
260: pkg_scripts=${pkg_scripts%%*( )${_r}}
261: [ -x /etc/rc.d/${_r} ] && /etc/rc.d/${_r} stop
262: done
263: echo '.'
264: fi
265:
1.431 deraadt 266: [ -f /etc/rc.shutdown ] && sh /etc/rc.shutdown
1.413 deraadt 267: else
268: echo single user: not running shutdown scripts
269: fi
1.240 mcbride 270:
1.450 rpe 271: # Bring carp interfaces down gracefully.
1.413 deraadt 272: ifconfig | while read a b; do
273: case $a in
274: carp+([0-9]):) ifconfig ${a%:} down ;;
275: esac
276: done
1.246 mcbride 277:
1.108 deraadt 278: exit 0
1.1 deraadt 279: fi
1.98 jakob 280:
1.172 miod 281: swapctl -A -t blk
1.170 deraadt 282:
1.17 deraadt 283: if [ -e /fastboot ]; then
1.1 deraadt 284: echo "Fast boot: skipping disk checks."
1.266 millert 285: elif [ X"$1" = X"autoboot" ]; then
1.1 deraadt 286: echo "Automatic boot in progress: starting file system checks."
1.429 claudio 287: do_fsck
1.1 deraadt 288: fi
289:
290: trap "echo 'Boot interrupted.'; exit 1" 3
291:
292: umount -a >/dev/null 2>&1
1.303 grunk 293: mount -a -t nonfs,vnd
1.450 rpe 294: mount -uw / # root on nfs requires this, others aren't hurt.
1.1 deraadt 295: rm -f /fastboot # XXX (root now writeable)
1.177 deraadt 296:
1.450 rpe 297: # Set flags on ttys. (Do early, in case they use tty for SLIP in netstart.)
1.1 deraadt 298: echo 'setting tty flags'
299: ttyflags -a
1.77 angelos 300:
1.252 mcbride 301: if [ -f /sbin/kbd -a -f /etc/kbdtype ]; then
302: kbd `cat /etc/kbdtype`
303: fi
304:
1.279 deraadt 305: wsconsctl_conf
306:
1.266 millert 307: if [ X"${pf}" != X"NO" ]; then
1.211 mcbride 308: RULES="block all"
1.228 henning 309: RULES="$RULES\npass on lo0"
1.447 krw 310: RULES="$RULES\npass in proto tcp from any to any port ssh keep state"
311: RULES="$RULES\npass out proto { tcp, udp } from any to any port domain keep state"
1.215 camield 312: RULES="$RULES\npass out inet proto icmp all icmp-type echoreq keep state"
1.420 claudio 313: RULES="$RULES\npass out inet proto udp from any port bootpc to any port bootps"
314: RULES="$RULES\npass in inet proto udp from any port bootps to any port bootpc"
1.257 grange 315: if ifconfig lo0 inet6 >/dev/null 2>&1; then
1.258 itojun 316: RULES="$RULES\npass out inet6 proto icmp6 all icmp6-type neighbrsol"
317: RULES="$RULES\npass in inet6 proto icmp6 all icmp6-type neighbradv"
1.257 grange 318: RULES="$RULES\npass out inet6 proto icmp6 all icmp6-type routersol"
319: RULES="$RULES\npass in inet6 proto icmp6 all icmp6-type routeradv"
1.420 claudio 320: RULES="$RULES\npass out inet6 proto udp from any port dhcpv6-client to any port dhcpv6-server"
321: RULES="$RULES\npass in inet6 proto udp from any port dhcpv6-server to any port dhcpv6-client"
1.257 grange 322: fi
1.424 henning 323: RULES="$RULES\npass in proto carp keep state (no-sync)"
324: RULES="$RULES\npass out proto carp !received-on any keep state (no-sync)"
1.193 deraadt 325: case `sysctl vfs.mounts.nfs 2>/dev/null` in
1.184 deraadt 326: *[1-9]*)
1.450 rpe 327: # Don't kill NFS.
1.324 henning 328: RULES="set reassemble yes no-df\n$RULES"
1.447 krw 329: RULES="$RULES\npass in proto { tcp, udp } from any port { sunrpc, nfsd } to any"
330: RULES="$RULES\npass out proto { tcp, udp } from any to any port { sunrpc, nfsd } !received-on any"
1.184 deraadt 331: ;;
332: esac
1.269 dhartmei 333: echo $RULES | pfctl -f -
334: pfctl -e
1.176 kjell 335: fi
1.318 djm 336:
1.450 rpe 337: # Fill net.inet.(tcp|udp).baddynamic lists from /etc/services.
1.318 djm 338: fill_baddynamic udp
339: fill_baddynamic tcp
1.176 kjell 340:
1.267 millert 341: sysctl_conf
1.260 jsg 342:
1.450 rpe 343: # Set hostname, turn on network.
1.1 deraadt 344: echo 'starting network'
1.289 henning 345: ifconfig -g carp carpdemote 128
1.264 deraadt 346: if [ -f /etc/resolv.conf.save ]; then
1.334 deraadt 347: mv -f /etc/resolv.conf.save /etc/resolv.conf
1.264 deraadt 348: touch /etc/resolv.conf
349: fi
1.439 ajacouto 350: sh /etc/netstart
1.451 rpe 351: dmesg >/dev/random # Any write triggers a rekey.
1.176 kjell 352:
1.450 rpe 353: # Load pf rules and bring up pfsync interface.
1.266 millert 354: if [ X"${pf}" != X"NO" ]; then
1.449 ajacouto 355: if [ -f /etc/pf.conf ]; then
356: pfctl -f /etc/pf.conf
1.309 mpf 357: fi
1.450 rpe 358: # Bring up pfsync after the working ruleset has been loaded.
1.367 deraadt 359: if [ -f /etc/hostname.pfsync0 ]; then
1.435 deraadt 360: sh /etc/netstart pfsync0
1.367 deraadt 361: fi
1.176 kjell 362: fi
1.1 deraadt 363:
1.278 otto 364: mount -s /usr >/dev/null 2>&1
365: mount -s /var >/dev/null 2>&1
1.180 deraadt 366:
1.389 deraadt 367: random_seed
1.29 deraadt 368:
1.450 rpe 369: # Clean up left-over files.
1.376 deraadt 370: rm -f /etc/nologin /var/spool/lock/LCK.* /var/spool/uucp/STST/*
1.247 henning 371: (cd /var/run && { rm -rf -- *; install -c -m 664 -g utmp /dev/null utmp; })
1.196 beck 372: (cd /var/authpf && rm -rf -- *)
1.96 alex 373:
1.450 rpe 374: # Save a copy of the boot messages.
1.96 alex 375: dmesg >/var/run/dmesg.boot
1.55 deraadt 376:
1.373 deraadt 377: make_keys
378:
1.379 deraadt 379: echo -n 'starting early daemons:'
1.440 deraadt 380: start_daemon syslogd ldattach pflogd nsd unbound ntpd
1.429 claudio 381: start_daemon iscsid isakmpd iked sasyncd ldapd npppd
1.353 robert 382: echo '.'
1.280 hshoexer 383:
1.450 rpe 384: # Load IPsec rules.
1.280 hshoexer 385: if [ X"${ipsec}" != X"NO" ]; then
1.449 ajacouto 386: if [ -f /etc/ipsec.conf ]; then
387: ipsecctl -f /etc/ipsec.conf
1.280 hshoexer 388: fi
1.40 provos 389: fi
1.1 deraadt 390:
1.379 deraadt 391: echo -n 'starting RPC daemons:'
1.399 dlg 392: start_daemon portmap ypldap
1.376 deraadt 393: if [ X"`domainname`" != X"" ]; then
1.385 deraadt 394: start_daemon ypserv ypbind yppasswdd
1.376 deraadt 395: fi
1.399 dlg 396: start_daemon mountd nfsd lockd statd amd
1.1 deraadt 397: echo '.'
1.58 deraadt 398:
1.278 otto 399: mount -a
1.172 miod 400: swapctl -A -t noblk
1.429 claudio 401:
1.450 rpe 402: # Check and mount networked filesystems.
1.429 claudio 403: do_fsck -N
404: mount -a -N
1.1 deraadt 405:
1.450 rpe 406: # /var/crash should be a directory or a symbolic link to the crash directory
407: # if core dumps are to be saved.
1.1 deraadt 408: if [ -d /var/crash ]; then
1.188 tholo 409: savecore ${savecore_flags} /var/crash
1.90 art 410: fi
411:
1.266 millert 412: if [ X"${check_quotas}" = X"YES" ]; then
1.41 downsj 413: echo -n 'checking quotas:'
414: quotacheck -a
415: echo ' done.'
416: quotaon -a
417: fi
1.1 deraadt 418:
1.376 deraadt 419: kvm_mkdb # build kvm(3) databases
1.1 deraadt 420: dev_mkdb
1.101 deraadt 421: chmod 666 /dev/tty[pqrstuvwxyzPQRST]*
1.226 millert 422: chown root:wheel /dev/tty[pqrstuvwxyzPQRST]*
1.1 deraadt 423:
1.450 rpe 424: # Check the password temp/lock file.
1.17 deraadt 425: if [ -f /etc/ptmp ]; then
1.1 deraadt 426: logger -s -p auth.err \
1.376 deraadt 427: 'password file may be incorrect -- /etc/ptmp exists'
1.32 deraadt 428: fi
429:
1.49 millert 430: echo clearing /tmp
431:
1.450 rpe 432: # Prune quickly with one rm, then use find to clean up /tmp/[lqv]*
433: # (not needed with mfs /tmp, but doesn't hurt there...).
1.444 deraadt 434: (cd /tmp && rm -rf [a-km-pr-uw-zA-Z]*)
1.339 sthen 435: (cd /tmp &&
1.443 millert 436: find . -maxdepth 1 ! -name . ! -name lost+found ! -name quota.user \
1.444 deraadt 437: ! -name quota.group ! -name vi.recover -execdir rm -rf -- {} \;)
1.373 deraadt 438:
439: setup_X_sockets
1.203 hugh 440:
1.431 deraadt 441: [ -f /etc/rc.securelevel ] && sh /etc/rc.securelevel
1.450 rpe 442: # rc.securelevel did not specifically set -1 or 2, so select the default: 1.
1.432 ajacouto 443: if [ `sysctl -n kern.securelevel` -eq 0 ]; then
444: sysctl kern.securelevel=1
1.433 ajacouto 445: fi
1.1 deraadt 446:
1.450 rpe 447: # Patch /etc/motd.
1.34 deraadt 448: if [ ! -f /etc/motd ]; then
449: install -c -o root -g wheel -m 664 /dev/null /etc/motd
450: fi
1.364 guenther 451: if T=`mktemp /tmp/_motd.XXXXXXXXXX`; then
1.451 rpe 452: sysctl -n kern.version | sed 1q >$T
453: echo "" >>$T
454: sed '1,/^$/d' </etc/motd >>$T
1.102 millert 455: cmp -s $T /etc/motd || cp $T /etc/motd
456: rm -f $T
457: fi
1.34 deraadt 458:
1.298 ajacouto 459: if [ X"${accounting}" = X"YES" ]; then
460: if [ ! -f /var/account/acct ]; then
461: touch /var/account/acct
462: fi
1.451 rpe 463: echo 'turning on accounting'; accton /var/account/acct
1.1 deraadt 464: fi
465:
1.363 deraadt 466: if [ -f /sbin/ldconfig ]; then
1.115 deraadt 467: echo 'creating runtime link editor directory cache.'
468: if [ -d /usr/local/lib ]; then
1.183 todd 469: shlib_dirs="/usr/local/lib $shlib_dirs"
1.115 deraadt 470: fi
471: if [ -d /usr/X11R6/lib ]; then
1.183 todd 472: shlib_dirs="/usr/X11R6/lib $shlib_dirs"
1.115 deraadt 473: fi
474: ldconfig $shlib_dirs
1.231 millert 475: fi
476:
1.451 rpe 477: echo 'preserving editor files.'; /usr/libexec/vi.recover
1.244 markus 478:
1.353 robert 479: echo -n 'starting network daemons:'
1.404 kettenis 480: start_daemon ldomd sshd snmpd ldpd ripd ospfd ospf6d bgpd ifstated
1.455 yasuoka 481: start_daemon relayd dhcpd dhcrelay mrouted dvmrpd radiusd
1.127 itojun 482:
483: if ifconfig lo0 inet6 >/dev/null 2>&1; then
484: fw=`sysctl -n net.inet6.ip6.forwarding`
1.446 florian 485: if [ X"${fw}" = X"1" ]; then
1.376 deraadt 486: start_daemon route6d rtadvd
1.127 itojun 487: fi
1.281 reyk 488: fi
489:
1.442 matthieu 490: start_daemon hostapd lpd smtpd slowcgi httpd ftpd
1.407 ajacouto 491: start_daemon ftpproxy tftpd tftpproxy identd inetd rarpd bootparamd
1.425 ajacouto 492: start_daemon rbootd mopd spamd spamlogd sndiod
1.377 robert 493: echo '.'
1.335 deraadt 494:
1.450 rpe 495: # If rc.firsttime exists, run it just once, and make sure it is deleted.
1.335 deraadt 496: if [ -f /etc/rc.firsttime ]; then
497: mv /etc/rc.firsttime /etc/rc.firsttime.run
1.384 halex 498: . /etc/rc.firsttime.run 2>&1 | tee /dev/tty |
1.392 halex 499: mail -Es "`hostname` rc.firsttime output" root >/dev/null
1.335 deraadt 500: fi
501: rm -f /etc/rc.firsttime.run
1.352 ajacouto 502:
1.450 rpe 503: # Run rc.d(8) scripts from packages.
1.380 ajacouto 504: if [ -n "${pkg_scripts}" ]; then
1.352 ajacouto 505: echo -n 'starting package daemons:'
1.380 ajacouto 506: for _r in $pkg_scripts; do
1.410 espie 507: if [ -x /etc/rc.d/${_r} ]; then
508: start_daemon ${_r}
509: else
510: echo -n " ${_r}(absent)"
511: fi
1.352 ajacouto 512: done
513: echo '.'
514: fi
1.17 deraadt 515:
1.431 deraadt 516: [ -f /etc/rc.local ] && sh /etc/rc.local
1.73 millert 517:
1.379 deraadt 518: ifconfig -g carp -carpdemote 128 # disable carp interlock
1.286 mcbride 519:
1.379 deraadt 520: mixerctl_conf
521: echo -n 'starting local daemons:'
1.386 deraadt 522: start_daemon apmd sensorsd hotplugd watchdogd cron wsmoused xdm
1.73 millert 523: echo '.'
1.1 deraadt 524:
525: date
526: exit 0
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