930 lines
22 KiB
Bash
930 lines
22 KiB
Bash
#!/bin/sh
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#-
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# Copyright (c) 2010-2016 Devin Teske
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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############################################################ INCLUDES
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# Prevent `-d' from being interpreted as a debug flag by common.subr
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DEBUG_SELF_INITIALIZE=
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BSDCFG_SHARE="/usr/share/bsdconfig"
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[ "$_COMMON_SUBR" ] || . $BSDCFG_SHARE/common.subr || exit 1
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[ "$_SYSRC_SUBR" ] || f_include $BSDCFG_SHARE/sysrc.subr
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############################################################ GLOBALS
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#
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# Version information
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#
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SYSRC_VERSION="7.1 Feb-2,2016"
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#
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# Options
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#
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CHECK_ONLY=
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DEFAULT=
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DELETE=
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DESCRIBE=
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EXISTING_ONLY=
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IGNORE_UNKNOWNS=
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JAIL=
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LIST_SERVICE_CONFS=
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LIST_CONFS=
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QUIET=
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ROOTDIR=
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SERVICE=
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SHOW_ALL=
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SHOW_EQUALS=
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SHOW_FILE=
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SHOW_NAME=1
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SHOW_VALUE=1
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VERBOSE=
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############################################################ FUNCTIONS
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# die [$fmt [$opts ...]]
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#
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# Optionally print a message to stderr before exiting with failure status.
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#
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die()
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{
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local fmt="$1"
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[ $# -gt 0 ] && shift 1
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[ "$fmt" ] && f_err "$fmt\n" "$@"
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exit $FAILURE
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}
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# usage
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#
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# Prints a short syntax statement and exits.
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#
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usage()
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{
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f_err "Usage: %s [OPTIONS] %s\n" "$pgm" \
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"{name[[+|-]=value] ... | -a | -A | -l | -L [name ...]}"
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f_err "Try \`%s --help' for more information.\n" "$pgm"
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die
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}
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# help
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#
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# Prints a full syntax statement and exits.
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#
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help()
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{
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local optfmt="\t%-11s%s\n"
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local envfmt="\t%-17s%s\n"
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f_err "Usage: %s [OPTIONS] name[[+|-]=value] ...\n" "$pgm"
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f_err "Usage: %s [OPTIONS] -a | -A\n" "$pgm"
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f_err "Usage: %s [OPTIONS] -l | -L [name ...]\n" "$pgm"
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f_err "OPTIONS:\n"
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f_err "$optfmt" "-a" \
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"Dump a list of all non-default configuration variables."
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f_err "$optfmt" "-A" \
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"Dump a list of all configuration variables (incl. defaults)."
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f_err "$optfmt" "-c" \
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"Check. Return success if set or no changes, else error."
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f_err "$optfmt" "-d" \
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"Print a description of the given variable."
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f_err "$optfmt" "-D" \
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"Show default value(s) only (this is the same as setting"
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f_err "$optfmt" "" \
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"RC_CONFS to NULL or passing \`-f' with a NULL file-argument)."
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f_err "$optfmt" "-e" \
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"Print query results as \`var=value' (useful for producing"
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f_err "$optfmt" "" \
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"output to be fed back in). Ignored if \`-n' is specified."
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f_err "$optfmt" "-E" \
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"Existing files only with \`-[lL]' or when changing a setting."
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f_err "$optfmt" "-f file" \
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"Operate on the specified file(s) instead of rc_conf_files."
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f_err "$optfmt" "" \
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"Can be specified multiple times for additional files."
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f_err "$optfmt" "-F" \
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"Show only the last rc.conf(5) file each directive is in."
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f_err "$optfmt" "-h" \
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"Print a short usage statement to stderr and exit."
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f_err "$optfmt" "--help" \
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"Print this message to stderr and exit."
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f_err "$optfmt" "-i" \
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"Ignore unknown variables."
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f_err "$optfmt" "-j jail" \
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"The jid or name of the jail to operate within (overrides"
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f_err "$optfmt" "" \
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"\`-R dir'; requires jexec(8))."
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f_err "$optfmt" "-l" \
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"List configuration files used at startup on stdout and exit."
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f_err "$optfmt" "-L" \
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"List all configuration files including rc.conf.d entries."
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f_err "$optfmt" "-n" \
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"Show only variable values, not their names."
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f_err "$optfmt" "-N" \
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"Show only variable names, not their values."
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f_err "$optfmt" "-q" \
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"Quiet. Disable verbose and hide certain errors."
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f_err "$optfmt" "-s name" \
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"Process additional \`rc.conf.d' entries for service name."
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f_err "$optfmt" "" \
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"Ignored if \`-f file' is given."
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f_err "$optfmt" "-R dir" \
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"Operate within the root directory \`dir' rather than \`/'."
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f_err "$optfmt" "-v" \
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"Verbose. Print the pathname of the specific rc.conf(5)"
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f_err "$optfmt" "" \
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"file where the directive was found."
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f_err "$optfmt" "--version" \
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"Print version information to stdout and exit."
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f_err "$optfmt" "-x" \
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"Remove variable(s) from specified file(s)."
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f_err "\n"
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f_err "ENVIRONMENT:\n"
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f_err "$envfmt" "RC_CONFS" \
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"Override default rc_conf_files (even if set to NULL)."
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f_err "$envfmt" "RC_DEFAULTS" \
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"Location of \`/etc/defaults/rc.conf' file."
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die
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}
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# jail_depend
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#
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# Dump dependencies such as language-file variables and include files to stdout
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# to be piped-into sh(1) running via jexec(8)/chroot(8). As a security measure,
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# this prevents existing language files and library files from being loaded in
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# the jail. This also relaxes the requirement to have these files in every jail
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# before sysrc can be used on said jail.
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#
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jail_depend()
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{
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#
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# Indicate that we are jailed
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#
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echo export _SYSRC_JAILED=1
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#
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# Print i18n language variables (their current values are sanitized
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# and re-printed for interpretation so that the i18n language files
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# do not need to exist within the jail).
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#
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local var val
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for var in \
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msg_cannot_create_permission_denied \
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msg_permission_denied \
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msg_previous_syntax_errors \
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; do
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val=$( eval echo \"\$$var\" |
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awk '{ gsub(/'\''/, "'\''\\'\'\''"); print }' )
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echo $var="'$val'"
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done
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#
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# Print include dependencies
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#
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echo DEBUG_SELF_INITIALIZE=
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cat $BSDCFG_SHARE/common.subr
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cat $BSDCFG_SHARE/sysrc.subr
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}
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# escape $string [$var_to_set]
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#
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# Escape $string contents so that the contents can be properly encapsulated in
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# single-quotes (making for safe evaluation).
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#
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# NB: See `bsdconfig includes -dF escape' for relevant information/discussion.
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# NB: Abridged version of `f_shell_escape()' from bsdconfig(8) `strings.subr'.
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#
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escape()
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{
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local __start="$1" __var_to_set="$2" __string=
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while [ "$__start" ]; do
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case "$__start" in *\'*)
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__string="$__string${__start%%\'*}'\\''"
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__start="${__start#*\'}" continue
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esac
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break
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done
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__string="$__string$__start"
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if [ "$__var_to_set" ]; then
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setvar "$__var_to_set" "$__string"
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else
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echo "$__string"
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fi
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}
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############################################################ MAIN SOURCE
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#
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# Perform sanity checks
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#
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[ $# -gt 0 ] || usage # NOTREACHED
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#
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# Check for `--help' and `--version' command-line option
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#
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for arg in "$@"; do
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case "$arg" in
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--) break ;;
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--help) help ;; # NOTREACHED
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--version) # see GLOBALS
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echo "$SYSRC_VERSION"
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exit $FAILURE ;;
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esac
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done
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unset arg
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#
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# Process command-line flags
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#
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while getopts aAcdDeEf:Fhij:lLnNqR:s:vxX flag; do
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case "$flag" in
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a) SHOW_ALL=${SHOW_ALL:-1} ;;
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A) SHOW_ALL=2 ;;
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c) CHECK_ONLY=1 ;;
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d) DESCRIBE=1 ;;
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D) DEFAULT=1 RC_CONFS= ;;
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e) SHOW_EQUALS=1 ;;
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E) EXISTING_ONLY=1 ;;
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f) DEFAULT= RC_CONFS="$RC_CONFS${RC_CONFS:+ }$OPTARG" ;;
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F) SHOW_FILE=1 ;;
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h) usage ;; # NOTREACHED
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i) IGNORE_UNKNOWNS=1 ;;
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j) [ "$OPTARG" ] ||
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die "%s: Missing or null argument to \`-j' flag" "$pgm"
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JAIL="$OPTARG" ;;
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l) LIST_CONFS=1 ;;
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L) LIST_SERVICE_CONFS=1 ;;
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n) SHOW_NAME= ;;
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N) SHOW_VALUE= ;;
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q) QUIET=1 VERBOSE= ;;
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R) [ "$OPTARG" ] ||
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die "%s: Missing or null argument to \`-R' flag" "$pgm"
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ROOTDIR="$OPTARG" ;;
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s) [ "$OPTARG" ] ||
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die "%s: Missing or null argument to \`-s' flag" "$pgm"
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SERVICE="$OPTARG" ;;
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v) VERBOSE=1 QUIET= ;;
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x) DELETE=${DELETE:-1} ;;
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X) DELETE=2 ;;
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\?) usage ;; # NOTREACHED
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esac
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done
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shift $(( $OPTIND - 1 ))
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#
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# Process `-L' flag
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#
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if [ "$LIST_SERVICE_CONFS" ]; then
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list=
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#
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# List rc_conf_files if no service names given
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#
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files=
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[ $# -eq 0 ] && files=$( f_sysrc_get rc_conf_files )
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for file in $files; do
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if [ "$EXISTING_ONLY" ]; then
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[ -e "$file" -a ! -d "$file" ] || continue
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fi
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case "$list" in
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"$file"|*" $file"|"$file "*|*" $file "*) continue ;;
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esac
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list="$list $file"
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done
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list="${list# }"
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if [ $# -eq 0 ]; then
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if [ "$VERBOSE" ]; then
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echo rc_conf_files: $list
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elif [ "$SHOW_EQUALS" ]; then
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echo "rc_conf_files=\"$list\""
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fi
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fi
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#
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# List rc.conf.d entries
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#
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retval=$SUCCESS
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for service in ${*:-$( service -l )}; do
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slist=
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f_sysrc_service_configs $service files || retval=$? continue
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for file in $files; do
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if [ "$EXISTING_ONLY" ]; then
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[ -e "$file" -a ! -d "$file" ] || continue
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fi
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if [ ! "$VERBOSE" -a ! "$SHOW_EQUALS" ]; then
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case "$list" in
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"$file"|*" $file"|"$file "*|*" $file "*)
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continue ;;
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esac
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fi
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slist="$slist $file"
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done
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slist="${slist# }"
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if [ $# -gt 0 ]; then
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[ "$slist" ] || retval=$?
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fi
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if [ "$VERBOSE" ]; then
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[ "$slist" ] && echo "$service: $slist"
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continue
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elif [ "$SHOW_EQUALS" ]; then
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[ "$slist" ] && echo "$service=\"$slist\""
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continue
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fi
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list="$list${slist:+ }$slist"
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done
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if [ ! "$VERBOSE" -a ! "$SHOW_EQUALS" ]; then
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if [ $# -eq 0 -o ! "$QUIET" ]; then
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list="${list# }"
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[ "$list" ] && echo $list
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fi
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fi
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exit $retval
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fi
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#
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# Process `-s name' argument
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#
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if [ "$SERVICE" -a ! "${RC_CONFS+set}" ]; then
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if f_sysrc_service_configs "$SERVICE" RC_CONFS; then
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rc_conf_files=$( f_sysrc_get rc_conf_files )
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RC_CONFS="$rc_conf_files${RC_CONFS:+ }$RC_CONFS"
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unset rc_conf_files
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else
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unset RC_CONFS
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fi
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fi
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#
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# Process `-E' option flag
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#
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if [ "$EXISTING_ONLY" ]; then
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#
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# To get f_sysrc_*() to ignore missing rc_conf_files, we have to use
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# RC_CONFS to override the unpreened value. If RC_CONFS already has a
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# value (`-D', `-f file', `-s name', or inherited from parent), use it.
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# Otherwise, include filtered contents of rc_conf_files.
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#
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RC_CONFS=$(
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if [ "${RC_CONFS+set}" ]; then
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set -- $RC_CONFS
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else
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set -- $( f_sysrc_get rc_conf_files )
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fi
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while [ $# -gt 0 ]; do
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[ -f "$1" ] && echo -n " $1"
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shift
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done
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)
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RC_CONFS="${RC_CONFS# }"
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fi
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#
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# Process `-l' option flag
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#
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if [ "$LIST_CONFS" ]; then
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[ $# -eq 0 ] || usage
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if [ "$DEFAULT" ]; then
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echo "$RC_DEFAULTS"
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elif [ "${RC_CONFS+set}" ]; then
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echo "$RC_CONFS"
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else
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f_sysrc_get rc_conf_files
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fi
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exit $SUCCESS
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fi
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#
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# [More] Sanity checks (e.g., "sysrc --")
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#
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[ $# -eq 0 -a ! "$SHOW_ALL" ] && usage # NOTREACHED
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#
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# Taint-check all rc.conf(5) files
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#
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errmsg="$pgm: Exiting due to previous syntax errors"
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if [ "${RC_CONFS+set}" ]; then
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( for i in $RC_CONFS; do
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[ -e "$i" ] || continue
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/bin/sh -n "$i" || exit $FAILURE
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done
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exit $SUCCESS
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) || die "$errmsg"
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else
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/bin/sh -n "$RC_DEFAULTS" || die "$errmsg"
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( . "$RC_DEFAULTS"
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for i in $rc_conf_files; do
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[ -e "$i" ] || continue
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/bin/sh -n "$i" || exit $FAILURE
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done
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exit $SUCCESS
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) || die "$errmsg"
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fi
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#
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# Process `-x' (and secret `-X') command-line options
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#
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errmsg="$pgm: \`-x' option incompatible with \`-a'/\`-A' options"
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errmsg="$errmsg (use \`-X' to override)"
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if [ "$DELETE" -a "$SHOW_ALL" ]; then
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[ "$DELETE" = "2" ] || die "$errmsg"
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fi
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#
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# Pre-flight for `-c' command-line option
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#
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[ "$CHECK_ONLY" -a "$SHOW_ALL" ] &&
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die "$pgm: \`-c' option incompatible with \`-a'/\`-A' options"
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#
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# Process `-e', `-n', and `-N' command-line options
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#
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SEP=': '
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[ "$SHOW_FILE" ] && SHOW_EQUALS=
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[ "$SHOW_NAME" ] || SHOW_EQUALS=
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[ "$VERBOSE" = "0" ] && VERBOSE=
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if [ ! "$SHOW_VALUE" ]; then
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SHOW_NAME=1
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SHOW_EQUALS=
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fi
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[ "$SHOW_EQUALS" ] && SEP='="'
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#
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# Process `-j jail' and `-R dir' command-line options
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#
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if [ "$JAIL" -o "$ROOTDIR" ]; then
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#
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# Reconstruct the arguments that we want to carry-over
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#
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args="
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${VERBOSE:+-v}
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${QUIET:+-q}
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$( [ "$DELETE" = "1" ] && echo \ -x )
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$( [ "$DELETE" = "2" ] && echo \ -X )
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$( [ "$SHOW_ALL" = "1" ] && echo \ -a )
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$( [ "$SHOW_ALL" = "2" ] && echo \ -A )
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${CHECK_ONLY:+-c}
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${DEFAULT:+-D}
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${EXISTING_ONLY:+-E}
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${LIST_CONFS:+-l}
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${LIST_SERVICE_CONFS:+-L}
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${DESCRIBE:+-d}
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${SHOW_EQUALS:+-e}
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${IGNORE_UNKNOWNS:+-i}
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$( [ "$SHOW_NAME" ] || echo \ -n )
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$( [ "$SHOW_VALUE" ] || echo \ -N )
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$( [ "$SHOW_FILE" ] && echo \ -F )
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"
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if [ "$SERVICE" ]; then
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escape "$SERVICE" _SERVICE
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args="$args -s '$_SERVICE'"
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unset _SERVICE
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fi
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if [ "${RC_CONFS+set}" ]; then
|
|
escape "$RC_CONFS" _RC_CONFS
|
|
args="$args -f '$_RC_CONFS'"
|
|
unset _RC_CONFS
|
|
fi
|
|
for arg in "$@"; do
|
|
escape "$arg" arg
|
|
args="$args '$arg'"
|
|
done
|
|
|
|
#
|
|
# If both are supplied, `-j jail' supercedes `-R dir'
|
|
#
|
|
if [ "$JAIL" ]; then
|
|
#
|
|
# Re-execute ourselves with sh(1) via jexec(8)
|
|
#
|
|
( echo set -- $args
|
|
jail_depend
|
|
cat $0
|
|
) | env - RC_DEFAULTS="$RC_DEFAULTS" \
|
|
/usr/sbin/jexec "$JAIL" /bin/sh
|
|
exit $?
|
|
elif [ "$ROOTDIR" ]; then
|
|
#
|
|
# Make sure that the root directory specified is not to any
|
|
# running jails.
|
|
#
|
|
# NOTE: To maintain backward compatibility with older jails on
|
|
# older systems, we will not perform this check if either the
|
|
# jls(1) or jexec(8) utilities are missing.
|
|
#
|
|
if f_have jexec && f_have jls; then
|
|
jid=$( jls jid path |
|
|
while read JID JROOT; do
|
|
[ "$JROOT" = "$ROOTDIR" ] || continue
|
|
echo $JID
|
|
done
|
|
)
|
|
|
|
#
|
|
# If multiple running jails match the specified root
|
|
# directory, exit with error.
|
|
#
|
|
if [ "$jid" -a "${jid%[$IFS]*}" != "$jid" ]; then
|
|
die "%s: %s: %s" "$pgm" "$ROOTDIR" \
|
|
"$( echo "Multiple jails claim this" \
|
|
"directory as their root." \
|
|
"(use \`-j jail' instead)" )"
|
|
fi
|
|
|
|
#
|
|
# If only a single running jail matches the specified
|
|
# root directory, implicitly use `-j jail'.
|
|
#
|
|
if [ "$jid" ]; then
|
|
#
|
|
# Re-execute outselves with sh(1) via jexec(8)
|
|
#
|
|
( echo set -- $args
|
|
jail_depend
|
|
cat $0
|
|
) | env - RC_DEFAULTS="$RC_DEFAULTS" \
|
|
/usr/sbin/jexec "$jid" /bin/sh
|
|
exit $?
|
|
fi
|
|
|
|
# Otherwise, fall through and allow chroot(8)
|
|
fi
|
|
|
|
#
|
|
# Re-execute ourselves with sh(1) via chroot(8)
|
|
#
|
|
( echo set -- $args
|
|
jail_depend
|
|
cat $0
|
|
) | env - RC_DEFAULTS="$RC_DEFAULTS" \
|
|
/usr/sbin/chroot "$ROOTDIR" /bin/sh
|
|
exit $?
|
|
fi
|
|
fi
|
|
|
|
#
|
|
# Process `-a' or `-A' command-line options
|
|
#
|
|
if [ "$SHOW_ALL" ]; then
|
|
#
|
|
# Get a list of variables that are currently set in the rc.conf(5)
|
|
# files (including `/etc/defaults/rc.conf') by performing a call to
|
|
# source_rc_confs() in a clean environment.
|
|
#
|
|
( # Operate in a sub-shell to protect the parent environment
|
|
#
|
|
# Set which variables we want to preserve in the environment.
|
|
# Append the pipe-character (|) to the list of internal field
|
|
# separation (IFS) characters, allowing us to use the below
|
|
# list both as an extended grep (-E) pattern and argument list
|
|
# (required to first get f_clean_env() to preserve these in the
|
|
# environment and then later to prune them from the list of
|
|
# variables produced by set(1)).
|
|
#
|
|
IFS="$IFS|"
|
|
EXCEPT="IFS|EXCEPT|PATH|RC_DEFAULTS|OPTIND|DESCRIBE|SEP"
|
|
EXCEPT="$EXCEPT|DELETE|SHOW_ALL|SHOW_EQUALS|SHOW_NAME|DEFAULT"
|
|
EXCEPT="$EXCEPT|SHOW_VALUE|SHOW_FILE|VERBOSE|RC_CONFS|SERVICE"
|
|
EXCEPT="$EXCEPT|pgm|SUCCESS|FAILURE|CHECK_ONLY|EXISTING_ONLY"
|
|
EXCEPT="$EXCEPT|LIST_CONFS|LIST_SERVICE_CONFS"
|
|
EXCEPT="$EXCEPT|f_sysrc_desc_awk|f_sysrc_delete_awk"
|
|
|
|
#
|
|
# Clean the environment (except for our required variables)
|
|
# and then source the required files.
|
|
#
|
|
f_clean_env --except $EXCEPT
|
|
if [ -f "$RC_DEFAULTS" -a -r "$RC_DEFAULTS" ]; then
|
|
. "$RC_DEFAULTS"
|
|
|
|
#
|
|
# If passed `-a' (rather than `-A'), re-purge the
|
|
# environment, removing the rc.conf(5) defaults.
|
|
#
|
|
[ "$SHOW_ALL" = "1" ] &&
|
|
f_clean_env --except rc_conf_files $EXCEPT
|
|
|
|
#
|
|
# If `-f file' was passed, set $rc_conf_files to an
|
|
# explicit value, modifying the default behavior of
|
|
# source_rc_confs().
|
|
#
|
|
if [ "${RC_CONFS+set}" ]; then
|
|
[ "$SHOW_ALL" = "1" -a "$SERVICE" -a \
|
|
! "$DEFAULT" ] || rc_conf_files=
|
|
rc_conf_files="$rc_conf_files $RC_CONFS"
|
|
rc_conf_files="${rc_conf_files# }"
|
|
rc_conf_files="${rc_conf_files% }"
|
|
fi
|
|
|
|
source_rc_confs
|
|
|
|
#
|
|
# If passed `-a' (rather than `-A'), remove
|
|
# `rc_conf_files' unless it was defined somewhere
|
|
# other than rc.conf(5) defaults.
|
|
#
|
|
[ "$SHOW_ALL" = "1" -a \
|
|
"$( f_sysrc_find rc_conf_files )" = "$RC_DEFAULTS" \
|
|
] && unset rc_conf_files
|
|
fi
|
|
|
|
for NAME in $( set |
|
|
awk -F= '/^[[:alpha:]_][[:alnum:]_]*=/ {print $1}' |
|
|
grep -Ev "^($EXCEPT)$"
|
|
); do
|
|
#
|
|
# If enabled, describe rather than expand value
|
|
#
|
|
if [ "$DESCRIBE" ]; then
|
|
echo "$NAME: $( f_sysrc_desc "$NAME" )"
|
|
continue
|
|
fi
|
|
|
|
#
|
|
# If `-F' is passed, find it and move on
|
|
#
|
|
if [ "$SHOW_FILE" ]; then
|
|
[ "$SHOW_NAME" ] && echo -n "$NAME: "
|
|
f_sysrc_find "$NAME"
|
|
continue
|
|
fi
|
|
|
|
#
|
|
# If `-X' is passed, delete the variables
|
|
#
|
|
if [ "$DELETE" = "2" ]; then
|
|
f_sysrc_delete "$NAME"
|
|
continue
|
|
fi
|
|
|
|
[ "$VERBOSE" ] &&
|
|
echo -n "$( f_sysrc_find "$NAME" ): "
|
|
|
|
#
|
|
# If `-N' is passed, simplify the output
|
|
#
|
|
if [ ! "$SHOW_VALUE" ]; then
|
|
echo "$NAME"
|
|
continue
|
|
fi
|
|
|
|
echo "${SHOW_NAME:+$NAME$SEP}$(
|
|
f_sysrc_get "$NAME" )${SHOW_EQUALS:+\"}"
|
|
|
|
done
|
|
)
|
|
|
|
#
|
|
# Ignore the remainder of positional arguments.
|
|
#
|
|
exit $SUCCESS
|
|
fi
|
|
|
|
#
|
|
# Process command-line arguments
|
|
#
|
|
status=$SUCCESS
|
|
while [ $# -gt 0 ]; do
|
|
NAME="${1%%=*}"
|
|
|
|
case "$NAME" in
|
|
*+) mode=APPEND NAME="${NAME%+}" ;;
|
|
*-) mode=REMOVE NAME="${NAME%-}" ;;
|
|
*) mode=ASSIGN
|
|
esac
|
|
|
|
[ "$DESCRIBE" ] &&
|
|
echo "$NAME: $( f_sysrc_desc "$NAME" )"
|
|
|
|
case "$1" in
|
|
*=*)
|
|
#
|
|
# Like sysctl(8), if both `-d' AND "name=value" is passed,
|
|
# first describe (done above), then attempt to set
|
|
#
|
|
|
|
# If verbose, prefix line with where the directive lives
|
|
if [ "$VERBOSE" -a ! "$CHECK_ONLY" ]; then
|
|
file=$( f_sysrc_find "$NAME" )
|
|
[ "$file" = "$RC_DEFAULTS" -o ! "$file" ] &&
|
|
file=$( f_sysrc_get 'rc_conf_files%%[$IFS]*' )
|
|
if [ "$SHOW_EQUALS" ]; then
|
|
echo -n ": $file; "
|
|
else
|
|
echo -n "$file: "
|
|
fi
|
|
fi
|
|
|
|
#
|
|
# If `-x' or `-X' is passed, delete the variable and ignore the
|
|
# desire to set some value
|
|
#
|
|
if [ "$DELETE" ]; then
|
|
f_sysrc_delete "$NAME" || status=$FAILURE
|
|
shift 1
|
|
continue
|
|
fi
|
|
|
|
#
|
|
# If `-c' is passed, simply compare and move on
|
|
#
|
|
if [ "$CHECK_ONLY" ]; then
|
|
if ! IGNORED=$( f_sysrc_get "$NAME?" ); then
|
|
status=$FAILURE
|
|
[ "$VERBOSE" ] &&
|
|
echo "$NAME: not currently set"
|
|
shift 1
|
|
continue
|
|
fi
|
|
value=$( f_sysrc_get "$NAME" )
|
|
if [ "$value" != "${1#*=}" ]; then
|
|
status=$FAILURE
|
|
if [ "$VERBOSE" ]; then
|
|
echo -n "$( f_sysrc_find "$NAME" ): "
|
|
echo -n "$NAME: would change from "
|
|
echo "\`$value' to \`${1#*=}'"
|
|
fi
|
|
elif [ "$VERBOSE" ]; then
|
|
echo -n "$( f_sysrc_find "$NAME" ): "
|
|
echo "$NAME: already set to \`$value'"
|
|
fi
|
|
shift 1
|
|
continue
|
|
fi
|
|
|
|
#
|
|
# Determine both `before' value and appropriate `new' value
|
|
#
|
|
case "$mode" in
|
|
APPEND)
|
|
before=$( f_sysrc_get "$NAME" )
|
|
add="${1#*=}"
|
|
delim="${add%"${add#?}"}" # first character
|
|
oldIFS="$IFS"
|
|
case "$delim" in
|
|
""|[$IFS]|[a-zA-Z0-9./]) delim=" " ;;
|
|
*) IFS="$delim"
|
|
esac
|
|
new="$before"
|
|
for a in $add; do
|
|
[ "$a" ] || continue
|
|
skip=
|
|
for b in $before; do
|
|
[ "$b" = "$a" ] && skip=1 break
|
|
done
|
|
[ "$skip" ] || new="$new$delim$a"
|
|
done
|
|
new="${new#"$delim"}" IFS="$oldIFS"
|
|
unset add delim oldIFS a skip b
|
|
[ "$SHOW_FILE" ] && before=$( f_sysrc_find "$NAME" )
|
|
;;
|
|
REMOVE)
|
|
before=$( f_sysrc_get "$NAME" )
|
|
remove="${1#*=}"
|
|
delim="${remove%"${remove#?}"}" # first character
|
|
oldIFS="$IFS"
|
|
case "$delim" in
|
|
""|[$IFS]|[a-zA-Z0-9./]) delim=" " ;;
|
|
*) IFS="$delim"
|
|
esac
|
|
new=
|
|
for b in $before; do
|
|
[ "$b" ] || continue
|
|
add=1
|
|
for r in $remove; do
|
|
[ "$r" = "$b" ] && add= break
|
|
done
|
|
[ "$add" ] && new="$new$delim$b"
|
|
done
|
|
new="${new#"$delim"}" IFS="$oldIFS"
|
|
unset remove delim oldIFS b add r
|
|
[ "$SHOW_FILE" ] && before=$( f_sysrc_find "$NAME" )
|
|
;;
|
|
*) # ASSIGN
|
|
if [ "$SHOW_FILE" ]; then
|
|
before=$( f_sysrc_find "$NAME" )
|
|
else
|
|
before=$( f_sysrc_get "$NAME" )
|
|
fi
|
|
new="${1#*=}"
|
|
esac
|
|
|
|
#
|
|
# If `-N' is passed, simplify the output
|
|
#
|
|
if [ ! "$SHOW_VALUE" ]; then
|
|
echo "$NAME"
|
|
f_sysrc_set "$NAME" "$new"
|
|
else
|
|
if f_sysrc_set "$NAME" "$new"; then
|
|
if [ "$SHOW_FILE" ]; then
|
|
after=$( f_sysrc_find "$NAME" )
|
|
else
|
|
after=$( f_sysrc_get "$NAME" )
|
|
fi
|
|
echo -n "${SHOW_NAME:+$NAME$SEP}"
|
|
echo -n "$before${SHOW_EQUALS:+\" #}"
|
|
echo -n " -> ${SHOW_EQUALS:+\"}$after"
|
|
echo "${SHOW_EQUALS:+\"}"
|
|
fi
|
|
fi
|
|
;;
|
|
*)
|
|
if ! IGNORED=$( f_sysrc_get "$NAME?" ); then
|
|
[ "$IGNORE_UNKNOWNS" -o "$QUIET" ] ||
|
|
echo "$pgm: unknown variable '$NAME'"
|
|
shift 1
|
|
status=$FAILURE
|
|
continue
|
|
fi
|
|
|
|
# The above check told us what we needed for `-c'
|
|
if [ "$CHECK_ONLY" ]; then
|
|
shift 1
|
|
continue
|
|
fi
|
|
|
|
#
|
|
# Like sysctl(8), when `-d' is passed, desribe it
|
|
# (already done above) rather than expanding it
|
|
#
|
|
|
|
if [ "$DESCRIBE" ]; then
|
|
shift 1
|
|
continue
|
|
fi
|
|
|
|
#
|
|
# If `-x' or `-X' is passed, delete the variable
|
|
#
|
|
if [ "$DELETE" ]; then
|
|
f_sysrc_delete "$NAME" || status=$FAILURE
|
|
shift 1
|
|
continue
|
|
fi
|
|
|
|
#
|
|
# If `-F' is passed, find it and move on
|
|
#
|
|
if [ "$SHOW_FILE" ]; then
|
|
[ "$SHOW_NAME" ] && echo -n "$NAME: "
|
|
f_sysrc_find "$NAME"
|
|
shift 1
|
|
continue
|
|
fi
|
|
|
|
if [ "$VERBOSE" ]; then
|
|
if [ "$SHOW_EQUALS" ]; then
|
|
echo -n ": $( f_sysrc_find "$NAME" ); "
|
|
else
|
|
echo -n "$( f_sysrc_find "$NAME" ): "
|
|
fi
|
|
fi
|
|
|
|
#
|
|
# If `-N' is passed, simplify the output
|
|
#
|
|
if [ ! "$SHOW_VALUE" ]; then
|
|
echo "$NAME"
|
|
else
|
|
echo "${SHOW_NAME:+$NAME$SEP}$(
|
|
f_sysrc_get "$NAME" )${SHOW_EQUALS:+\"}"
|
|
fi
|
|
esac
|
|
shift 1
|
|
done
|
|
|
|
exit $status # $SUCCESS unless error occurred with either `-c' or `-x'
|
|
|
|
################################################################################
|
|
# END
|
|
################################################################################
|