sysrc revision 290312
1#!/bin/sh 2#- 3# Copyright (c) 2010-2015 Devin Teske 4# All rights reserved. 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26# 27# $FreeBSD: stable/10/usr.sbin/sysrc/sysrc 290312 2015-11-02 22:56:10Z dteske $ 28# 29############################################################ INCLUDES 30 31# Prevent `-d' from being interpreted as a debug flag by common.subr 32DEBUG_SELF_INITIALIZE= 33 34BSDCFG_SHARE="/usr/share/bsdconfig" 35[ "$_COMMON_SUBR" ] || . $BSDCFG_SHARE/common.subr || exit 1 36[ "$_SYSRC_SUBR" ] || f_include $BSDCFG_SHARE/sysrc.subr 37 38############################################################ GLOBALS 39 40# 41# Version information 42# 43SYSRC_VERSION="6.5 Sep-1,2015" 44 45# 46# Options 47# 48CHECK_ONLY= 49DELETE= 50DESCRIBE= 51IGNORE_UNKNOWNS= 52JAIL= 53QUIET= 54ROOTDIR= 55SHOW_ALL= 56SHOW_EQUALS= 57SHOW_FILE= 58SHOW_NAME=1 59SHOW_VALUE=1 60VERBOSE= 61 62############################################################ FUNCTIONS 63 64# die [$fmt [$opts ...]] 65# 66# Optionally print a message to stderr before exiting with failure status. 67# 68die() 69{ 70 local fmt="$1" 71 [ $# -gt 0 ] && shift 1 72 [ "$fmt" ] && f_err "$fmt\n" "$@" 73 74 exit $FAILURE 75} 76 77# usage 78# 79# Prints a short syntax statement and exits. 80# 81usage() 82{ 83 f_err "Usage: %s [OPTIONS] name[[+|-]=value] ...\n" "$pgm" 84 f_err "Try \`%s --help' for more information.\n" "$pgm" 85 die 86} 87 88# help 89# 90# Prints a full syntax statement and exits. 91# 92help() 93{ 94 local optfmt="\t%-11s%s\n" 95 local envfmt="\t%-17s%s\n" 96 97 f_err "Usage: %s [OPTIONS] name[[+|-]=value] ...\n" "$pgm" 98 99 f_err "OPTIONS:\n" 100 f_err "$optfmt" "-a" \ 101 "Dump a list of all non-default configuration variables." 102 f_err "$optfmt" "-A" \ 103 "Dump a list of all configuration variables (incl. defaults)." 104 f_err "$optfmt" "-c" \ 105 "Check. Return success if set or no changes, else error." 106 f_err "$optfmt" "-d" \ 107 "Print a description of the given variable." 108 f_err "$optfmt" "-D" \ 109 "Show default value(s) only (this is the same as setting" 110 f_err "$optfmt" "" \ 111 "RC_CONFS to NULL or passing \`-f' with a NULL file-argument)." 112 f_err "$optfmt" "-e" \ 113 "Print query results as \`var=value' (useful for producing" 114 f_err "$optfmt" "" \ 115 "output to be fed back in). Ignored if \`-n' is specified." 116 f_err "$optfmt" "-f file" \ 117 "Operate on the specified file(s) instead of rc_conf_files." 118 f_err "$optfmt" "" \ 119 "Can be specified multiple times for additional files." 120 f_err "$optfmt" "-F" \ 121 "Show only the last rc.conf(5) file each directive is in." 122 f_err "$optfmt" "-h" \ 123 "Print a short usage statement to stderr and exit." 124 f_err "$optfmt" "--help" \ 125 "Print this message to stderr and exit." 126 f_err "$optfmt" "-i" \ 127 "Ignore unknown variables." 128 f_err "$optfmt" "-j jail" \ 129 "The jid or name of the jail to operate within (overrides" 130 f_err "$optfmt" "" \ 131 "\`-R dir'; requires jexec(8))." 132 f_err "$optfmt" "-n" \ 133 "Show only variable values, not their names." 134 f_err "$optfmt" "-N" \ 135 "Show only variable names, not their values." 136 f_err "$optfmt" "-q" \ 137 "Quiet. Disable verbose and hide certain errors." 138 f_err "$optfmt" "-R dir" \ 139 "Operate within the root directory \`dir' rather than \`/'." 140 f_err "$optfmt" "-v" \ 141 "Verbose. Print the pathname of the specific rc.conf(5)" 142 f_err "$optfmt" "" \ 143 "file where the directive was found." 144 f_err "$optfmt" "--version" \ 145 "Print version information to stdout and exit." 146 f_err "$optfmt" "-x" \ 147 "Remove variable(s) from specified file(s)." 148 f_err "\n" 149 150 f_err "ENVIRONMENT:\n" 151 f_err "$envfmt" "RC_CONFS" \ 152 "Override default rc_conf_files (even if set to NULL)." 153 f_err "$envfmt" "RC_DEFAULTS" \ 154 "Location of \`/etc/defaults/rc.conf' file." 155 156 die 157} 158 159# jail_depend 160# 161# Dump dependencies such as language-file variables and include files to stdout 162# to be piped-into sh(1) running via jexec(8)/chroot(8). As a security measure, 163# this prevents existing language files and library files from being loaded in 164# the jail. This also relaxes the requirement to have these files in every jail 165# before sysrc can be used on said jail. 166# 167jail_depend() 168{ 169 # 170 # Indicate that we are jailed 171 # 172 echo export _SYSRC_JAILED=1 173 174 # 175 # Print i18n language variables (their current values are sanitized 176 # and re-printed for interpretation so that the i18n language files 177 # do not need to exist within the jail). 178 # 179 local var val 180 for var in \ 181 msg_cannot_create_permission_denied \ 182 msg_permission_denied \ 183 msg_previous_syntax_errors \ 184 ; do 185 val=$( eval echo \"\$$var\" | 186 awk '{ gsub(/'\''/, "'\''\\'\'\''"); print }' ) 187 echo $var="'$val'" 188 done 189 190 # 191 # Print include dependencies 192 # 193 echo DEBUG_SELF_INITIALIZE= 194 cat $BSDCFG_SHARE/common.subr 195 cat $BSDCFG_SHARE/sysrc.subr 196} 197 198# escape $string [$var_to_set] 199# 200# Escape $string contents so that the contents can be properly encapsulated in 201# single-quotes (making for safe evaluation). 202# 203# NB: See `bsdconfig includes -dF escape' for relevant information/discussion. 204# NB: Abridged version of `f_shell_escape()' from bsdconfig(8) `strings.subr'. 205# 206escape() 207{ 208 local __start="$1" __var_to_set="$2" __string= 209 while [ "$__start" ]; do 210 case "$__start" in *\'*) 211 __string="$__string${__start%%\'*}'\\''" 212 __start="${__start#*\'}" continue 213 esac 214 break 215 done 216 __string="$__string$__start" 217 if [ "$__var_to_set" ]; then 218 setvar "$__var_to_set" "$__string" 219 else 220 echo "$__string" 221 fi 222} 223 224############################################################ MAIN SOURCE 225 226# 227# Perform sanity checks 228# 229[ $# -gt 0 ] || usage # NOTREACHED 230 231# 232# Check for `--help' and `--version' command-line option 233# 234for arg in "$@"; do 235 case "$arg" in 236 --) break ;; 237 --help) help ;; # NOTREACHED 238 --version) # see GLOBALS 239 echo "$SYSRC_VERSION" 240 exit $FAILURE ;; 241 esac 242done 243unset arg 244 245# 246# Process command-line flags 247# 248while getopts aAcdDef:Fhij:nNqR:vxX flag; do 249 case "$flag" in 250 a) SHOW_ALL=${SHOW_ALL:-1} ;; 251 A) SHOW_ALL=2 ;; 252 c) CHECK_ONLY=1 ;; 253 d) DESCRIBE=1 ;; 254 D) RC_CONFS= ;; 255 e) SHOW_EQUALS=1 ;; 256 f) RC_CONFS="$RC_CONFS${RC_CONFS:+ }$OPTARG" ;; 257 F) SHOW_FILE=1 ;; 258 h) usage ;; # NOTREACHED 259 i) IGNORE_UNKNOWNS=1 ;; 260 j) [ "$OPTARG" ] || 261 die "%s: Missing or null argument to \`-j' flag" "$pgm" 262 JAIL="$OPTARG" ;; 263 n) SHOW_NAME= ;; 264 N) SHOW_VALUE= ;; 265 q) QUIET=1 VERBOSE= ;; 266 R) [ "$OPTARG" ] || 267 die "%s: Missing or null argument to \`-R' flag" "$pgm" 268 ROOTDIR="$OPTARG" ;; 269 v) VERBOSE=1 QUIET= ;; 270 x) DELETE=${DELETE:-1} ;; 271 X) DELETE=2 ;; 272 \?) usage ;; # NOTREACHED 273 esac 274done 275shift $(( $OPTIND - 1 )) 276 277# 278# [More] Sanity checks (e.g., "sysrc --") 279# 280[ $# -eq 0 -a ! "$SHOW_ALL" ] && usage # NOTREACHED 281 282# 283# Taint-check all rc.conf(5) files 284# 285errmsg="$pgm: Exiting due to previous syntax errors" 286if [ "${RC_CONFS+set}" ]; then 287 ( for i in $RC_CONFS; do 288 [ -e "$i" ] || continue 289 /bin/sh -n "$i" || exit $FAILURE 290 done 291 exit $SUCCESS 292 ) || die "$errmsg" 293else 294 /bin/sh -n "$RC_DEFAULTS" || die "$errmsg" 295 ( . "$RC_DEFAULTS" 296 for i in $rc_conf_files; do 297 [ -e "$i" ] || continue 298 /bin/sh -n "$i" || exit $FAILURE 299 done 300 exit $SUCCESS 301 ) || die "$errmsg" 302fi 303 304# 305# Process `-x' (and secret `-X') command-line options 306# 307errmsg="$pgm: \`-x' option incompatible with \`-a'/\`-A' options" 308errmsg="$errmsg (use \`-X' to override)" 309if [ "$DELETE" -a "$SHOW_ALL" ]; then 310 [ "$DELETE" = "2" ] || die "$errmsg" 311fi 312 313# 314# Pre-flight for `-c' command-line option 315# 316[ "$CHECK_ONLY" -a "$SHOW_ALL" ] && 317 die "$pgm: \`-c' option incompatible with \`-a'/\`-A' options" 318 319# 320# Process `-e', `-n', and `-N' command-line options 321# 322SEP=': ' 323[ "$SHOW_FILE" ] && SHOW_EQUALS= 324[ "$SHOW_NAME" ] || SHOW_EQUALS= 325[ "$VERBOSE" = "0" ] && VERBOSE= 326if [ ! "$SHOW_VALUE" ]; then 327 SHOW_NAME=1 328 SHOW_EQUALS= 329fi 330[ "$SHOW_EQUALS" ] && SEP='="' 331 332# 333# Process `-j jail' and `-R dir' command-line options 334# 335if [ "$JAIL" -o "$ROOTDIR" ]; then 336 # 337 # Reconstruct the arguments that we want to carry-over 338 # 339 args=" 340 ${VERBOSE:+-v} 341 ${QUIET:+-q} 342 $( [ "$DELETE" = "1" ] && echo \ -x ) 343 $( [ "$DELETE" = "2" ] && echo \ -X ) 344 $( [ "$SHOW_ALL" = "1" ] && echo \ -a ) 345 $( [ "$SHOW_ALL" = "2" ] && echo \ -A ) 346 ${CHECK_ONLY:+-c} 347 ${DESCRIBE:+-d} 348 ${SHOW_EQUALS:+-e} 349 ${IGNORE_UNKNOWNS:+-i} 350 $( [ "$SHOW_NAME" ] || echo \ -n ) 351 $( [ "$SHOW_VALUE" ] || echo \ -N ) 352 $( [ "$SHOW_FILE" ] && echo \ -F ) 353 " 354 if [ "${RC_CONFS+set}" ]; then 355 escape "$RC_CONFS" _RC_CONFS 356 args="$args -f '$_RC_CONFS'" 357 unset _RC_CONFS 358 fi 359 for arg in "$@"; do 360 escape "$arg" arg 361 args="$args '$arg'" 362 done 363 364 # 365 # If both are supplied, `-j jail' supercedes `-R dir' 366 # 367 if [ "$JAIL" ]; then 368 # 369 # Re-execute ourselves with sh(1) via jexec(8) 370 # 371 ( echo set -- $args 372 jail_depend 373 cat $0 374 ) | env - RC_DEFAULTS="$RC_DEFAULTS" \ 375 /usr/sbin/jexec "$JAIL" /bin/sh 376 exit $? 377 elif [ "$ROOTDIR" ]; then 378 # 379 # Make sure that the root directory specified is not to any 380 # running jails. 381 # 382 # NOTE: To maintain backward compatibility with older jails on 383 # older systems, we will not perform this check if either the 384 # jls(1) or jexec(8) utilities are missing. 385 # 386 if f_have jexec && f_have jls; then 387 jid=$( jls jid path | 388 while read JID JROOT; do 389 [ "$JROOT" = "$ROOTDIR" ] || continue 390 echo $JID 391 done 392 ) 393 394 # 395 # If multiple running jails match the specified root 396 # directory, exit with error. 397 # 398 if [ "$jid" -a "${jid%[$IFS]*}" != "$jid" ]; then 399 die "%s: %s: %s" "$pgm" "$ROOTDIR" \ 400 "$( echo "Multiple jails claim this" \ 401 "directory as their root." \ 402 "(use \`-j jail' instead)" )" 403 fi 404 405 # 406 # If only a single running jail matches the specified 407 # root directory, implicitly use `-j jail'. 408 # 409 if [ "$jid" ]; then 410 # 411 # Re-execute outselves with sh(1) via jexec(8) 412 # 413 ( echo set -- $args 414 jail_depend 415 cat $0 416 ) | env - RC_DEFAULTS="$RC_DEFAULTS" \ 417 /usr/sbin/jexec "$jid" /bin/sh 418 exit $? 419 fi 420 421 # Otherwise, fall through and allow chroot(8) 422 fi 423 424 # 425 # Re-execute ourselves with sh(1) via chroot(8) 426 # 427 ( echo set -- $args 428 jail_depend 429 cat $0 430 ) | env - RC_DEFAULTS="$RC_DEFAULTS" \ 431 /usr/sbin/chroot "$ROOTDIR" /bin/sh 432 exit $? 433 fi 434fi 435 436# 437# Process `-a' or `-A' command-line options 438# 439if [ "$SHOW_ALL" ]; then 440 # 441 # Get a list of variables that are currently set in the rc.conf(5) 442 # files (included `/etc/defaults/rc.conf') by performing a call to 443 # source_rc_confs() in a clean environment. 444 # 445 ( # Operate in a sub-shell to protect the parent environment 446 # 447 # Set which variables we want to preserve in the environment. 448 # Append the pipe-character (|) to the list of internal field 449 # separation (IFS) characters, allowing us to use the below 450 # list both as an extended grep (-E) pattern and argument list 451 # (required to first get f_clean_env() to preserve these in the 452 # environment and then later to prune them from the list of 453 # variables produced by set(1)). 454 # 455 IFS="$IFS|" 456 EXCEPT="IFS|EXCEPT|PATH|RC_DEFAULTS|OPTIND|DESCRIBE|SEP" 457 EXCEPT="$EXCEPT|DELETE|SHOW_ALL|SHOW_EQUALS|SHOW_NAME" 458 EXCEPT="$EXCEPT|SHOW_VALUE|SHOW_FILE|VERBOSE|RC_CONFS" 459 EXCEPT="$EXCEPT|pgm|SUCCESS|FAILURE|CHECK_ONLY" 460 EXCEPT="$EXCEPT|f_sysrc_desc_awk|f_sysrc_delete_awk" 461 462 # 463 # Clean the environment (except for our required variables) 464 # and then source the required files. 465 # 466 f_clean_env --except $EXCEPT 467 if [ -f "$RC_DEFAULTS" -a -r "$RC_DEFAULTS" ]; then 468 . "$RC_DEFAULTS" 469 470 # 471 # If passed `-a' (rather than `-A'), re-purge the 472 # environment, removing the rc.conf(5) defaults. 473 # 474 [ "$SHOW_ALL" = "1" ] && 475 f_clean_env --except rc_conf_files $EXCEPT 476 477 # 478 # If `-f file' was passed, set $rc_conf_files to an 479 # explicit value, modifying the default behavior of 480 # source_rc_confs(). 481 # 482 [ "${RC_CONFS+set}" ] && rc_conf_files="$RC_CONFS" 483 484 source_rc_confs 485 486 # 487 # If passed `-a' (rather than `-A'), remove 488 # `rc_conf_files' unless it was defined somewhere 489 # other than rc.conf(5) defaults. 490 # 491 [ "$SHOW_ALL" = "1" -a \ 492 "$( f_sysrc_find rc_conf_files )" = "$RC_DEFAULTS" \ 493 ] && unset rc_conf_files 494 fi 495 496 for NAME in $( set | 497 awk -F= '/^[[:alpha:]_][[:alnum:]_]*=/ {print $1}' | 498 grep -Ev "^($EXCEPT)$" 499 ); do 500 # 501 # If enabled, describe rather than expand value 502 # 503 if [ "$DESCRIBE" ]; then 504 echo "$NAME: $( f_sysrc_desc "$NAME" )" 505 continue 506 fi 507 508 # 509 # If `-F' is passed, find it and move on 510 # 511 if [ "$SHOW_FILE" ]; then 512 [ "$SHOW_NAME" ] && echo -n "$NAME: " 513 f_sysrc_find "$NAME" 514 continue 515 fi 516 517 # 518 # If `-X' is passed, delete the variables 519 # 520 if [ "$DELETE" = "2" ]; then 521 f_sysrc_delete "$NAME" 522 continue 523 fi 524 525 [ "$VERBOSE" ] && 526 echo -n "$( f_sysrc_find "$NAME" ): " 527 528 # 529 # If `-N' is passed, simplify the output 530 # 531 if [ ! "$SHOW_VALUE" ]; then 532 echo "$NAME" 533 continue 534 fi 535 536 echo "${SHOW_NAME:+$NAME$SEP}$( 537 f_sysrc_get "$NAME" )${SHOW_EQUALS:+\"}" 538 539 done 540 ) 541 542 # 543 # Ignore the remainder of positional arguments. 544 # 545 exit $SUCCESS 546fi 547 548# 549# Process command-line arguments 550# 551status=$SUCCESS 552while [ $# -gt 0 ]; do 553 NAME="${1%%=*}" 554 555 case "$NAME" in 556 *+) mode=APPEND NAME="${NAME%+}" ;; 557 *-) mode=REMOVE NAME="${NAME%-}" ;; 558 *) mode=ASSIGN 559 esac 560 561 [ "$DESCRIBE" ] && 562 echo "$NAME: $( f_sysrc_desc "$NAME" )" 563 564 case "$1" in 565 *=*) 566 # 567 # Like sysctl(8), if both `-d' AND "name=value" is passed, 568 # first describe (done above), then attempt to set 569 # 570 571 # If verbose, prefix line with where the directive lives 572 if [ "$VERBOSE" -a ! "$CHECK_ONLY" ]; then 573 file=$( f_sysrc_find "$NAME" ) 574 [ "$file" = "$RC_DEFAULTS" -o ! "$file" ] && 575 file=$( f_sysrc_get 'rc_conf_files%%[$IFS]*' ) 576 if [ "$SHOW_EQUALS" ]; then 577 echo -n ": $file; " 578 else 579 echo -n "$file: " 580 fi 581 fi 582 583 # 584 # If `-x' or `-X' is passed, delete the variable and ignore the 585 # desire to set some value 586 # 587 if [ "$DELETE" ]; then 588 f_sysrc_delete "$NAME" || status=$FAILURE 589 shift 1 590 continue 591 fi 592 593 # 594 # If `-c' is passed, simply compare and move on 595 # 596 if [ "$CHECK_ONLY" ]; then 597 if ! IGNORED=$( f_sysrc_get "$NAME?" ); then 598 status=$FAILURE 599 [ "$VERBOSE" ] && 600 echo "$NAME: not currently set" 601 shift 1 602 continue 603 fi 604 value=$( f_sysrc_get "$NAME" ) 605 if [ "$value" != "${1#*=}" ]; then 606 status=$FAILURE 607 if [ "$VERBOSE" ]; then 608 echo -n "$( f_sysrc_find "$NAME" ): " 609 echo -n "$NAME: would change from " 610 echo "\`$value' to \`${1#*=}'" 611 fi 612 elif [ "$VERBOSE" ]; then 613 echo -n "$( f_sysrc_find "$NAME" ): " 614 echo "$NAME: already set to \`$value'" 615 fi 616 shift 1 617 continue 618 fi 619 620 # 621 # Determine both `before' value and appropriate `new' value 622 # 623 case "$mode" in 624 APPEND) 625 before=$( f_sysrc_get "$NAME" ) 626 add="${1#*=}" 627 delim="${add%"${add#?}"}" # first character 628 oldIFS="$IFS" 629 case "$delim" in 630 ""|[$IFS]|[a-zA-Z0-9]) delim=" " ;; 631 *) IFS="$delim" 632 esac 633 new="$before" 634 for a in $add; do 635 [ "$a" ] || continue 636 skip= 637 for b in $before; do 638 [ "$b" = "$a" ] && skip=1 break 639 done 640 [ "$skip" ] || new="$new$delim$a" 641 done 642 new="${new#"$delim"}" IFS="$oldIFS" 643 unset add delim oldIFS a skip b 644 [ "$SHOW_FILE" ] && before=$( f_sysrc_find "$NAME" ) 645 ;; 646 REMOVE) 647 before=$( f_sysrc_get "$NAME" ) 648 remove="${1#*=}" 649 delim="${remove%"${remove#?}"}" # first character 650 oldIFS="$IFS" 651 case "$delim" in 652 ""|[$IFS]|[a-zA-Z0-9]) delim=" " ;; 653 *) IFS="$delim" 654 esac 655 new= 656 for b in $before; do 657 [ "$b" ] || continue 658 add=1 659 for r in $remove; do 660 [ "$r" = "$b" ] && add= break 661 done 662 [ "$add" ] && new="$new$delim$b" 663 done 664 new="${new#"$delim"}" IFS="$oldIFS" 665 unset remove delim oldIFS b add r 666 [ "$SHOW_FILE" ] && before=$( f_sysrc_find "$NAME" ) 667 ;; 668 *) # ASSIGN 669 if [ "$SHOW_FILE" ]; then 670 before=$( f_sysrc_find "$NAME" ) 671 else 672 before=$( f_sysrc_get "$NAME" ) 673 fi 674 new="${1#*=}" 675 esac 676 677 # 678 # If `-N' is passed, simplify the output 679 # 680 if [ ! "$SHOW_VALUE" ]; then 681 echo "$NAME" 682 f_sysrc_set "$NAME" "$new" 683 else 684 if f_sysrc_set "$NAME" "$new"; then 685 if [ "$SHOW_FILE" ]; then 686 after=$( f_sysrc_find "$NAME" ) 687 else 688 after=$( f_sysrc_get "$NAME" ) 689 fi 690 echo -n "${SHOW_NAME:+$NAME$SEP}" 691 echo -n "$before${SHOW_EQUALS:+\" #}" 692 echo -n " -> ${SHOW_EQUALS:+\"}$after" 693 echo "${SHOW_EQUALS:+\"}" 694 fi 695 fi 696 ;; 697 *) 698 if ! IGNORED=$( f_sysrc_get "$NAME?" ); then 699 [ "$IGNORE_UNKNOWNS" -o "$QUIET" ] || 700 echo "$pgm: unknown variable '$NAME'" 701 shift 1 702 status=$FAILURE 703 continue 704 fi 705 706 # The above check told us what we needed for `-c' 707 if [ "$CHECK_ONLY" ]; then 708 shift 1 709 continue 710 fi 711 712 # 713 # Like sysctl(8), when `-d' is passed, desribe it 714 # (already done above) rather than expanding it 715 # 716 717 if [ "$DESCRIBE" ]; then 718 shift 1 719 continue 720 fi 721 722 # 723 # If `-x' or `-X' is passed, delete the variable 724 # 725 if [ "$DELETE" ]; then 726 f_sysrc_delete "$NAME" || status=$FAILURE 727 shift 1 728 continue 729 fi 730 731 # 732 # If `-F' is passed, find it and move on 733 # 734 if [ "$SHOW_FILE" ]; then 735 [ "$SHOW_NAME" ] && echo -n "$NAME: " 736 f_sysrc_find "$NAME" 737 shift 1 738 continue 739 fi 740 741 if [ "$VERBOSE" ]; then 742 if [ "$SHOW_EQUALS" ]; then 743 echo -n ": $( f_sysrc_find "$NAME" ); " 744 else 745 echo -n "$( f_sysrc_find "$NAME" ): " 746 fi 747 fi 748 749 # 750 # If `-N' is passed, simplify the output 751 # 752 if [ ! "$SHOW_VALUE" ]; then 753 echo "$NAME" 754 else 755 echo "${SHOW_NAME:+$NAME$SEP}$( 756 f_sysrc_get "$NAME" )${SHOW_EQUALS:+\"}" 757 fi 758 esac 759 shift 1 760done 761 762exit $status # $SUCCESS unless error occurred with either `-c' or `-x' 763 764################################################################################ 765# END 766################################################################################ 767