mirror of
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100 lines
2.0 KiB
Plaintext
100 lines
2.0 KiB
Plaintext
#
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# Copyright
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#
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# Copyright (C) 2016-2017 Costa Tsaousis <costa@tsaousis.gr>
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# Copyright (C) 2016-2017 Phil Whineray <phil@sanewall.org>
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#
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# See sbin/firehol.in for details
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#
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# This file contains functions used by the firehol suite.
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# To keep the namespace clean, functions defined in functions.x.sh
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# should be of the form x_whatever() if they are intended for general
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# use or int_x_whatever() if they are intended as helpers to the other
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# functions in the file.
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#
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common_require_cmd() {
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local progname="$1" var="$2" val=
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eval val=\$\{${var}\}
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if [ "${val}" ]
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then
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return 0
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fi
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$CAT_CMD >&2 <<-__EOF__
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ERROR: $progname feature requires $var
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You have invoked the program requesting a feature which uses
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a program which was not available when $progname was installed.
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Please re-install $progname with a suitable command available.
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__EOF__
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exit 1
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}
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common_require_root() {
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if [ "${UID}" != 0 ]
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then
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echo >&2
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echo >&2 "ERROR:"
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echo >&2 "Only user root can run ${1}"
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echo >&2
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return 1
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fi
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return 0
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}
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common_disable_localization() {
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export LC_ALL=C
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}
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common_private_umask() {
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# Make sure our generated files cannot be accessed by anyone else.
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umask 077
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}
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common_public_umask() {
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# let everyone read our status info
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umask 022
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}
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common_setup_terminal() {
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# Are stdout/stderr on the terminal? If not, then fail
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test -t 2 || return 1
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test -t 1 || return 1
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if [ ! -z "$TPUT_CMD" ]
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then
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if [ $[$($TPUT_CMD colors 2>/dev/null)] -ge 8 ]
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then
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# Enable colors
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COLOR_RESET="\e[0m"
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COLOR_BLACK="\e[30m"
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COLOR_RED="\e[31m"
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COLOR_GREEN="\e[32m"
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COLOR_YELLOW="\e[33m"
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COLOR_BLUE="\e[34m"
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COLOR_PURPLE="\e[35m"
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COLOR_CYAN="\e[36m"
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COLOR_WHITE="\e[37m"
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COLOR_BGBLACK="\e[40m"
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COLOR_BGRED="\e[41m"
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COLOR_BGGREEN="\e[42m"
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COLOR_BGYELLOW="\e[43m"
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COLOR_BGBLUE="\e[44m"
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COLOR_BGPURPLE="\e[45m"
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COLOR_BGCYAN="\e[46m"
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COLOR_BGWHITE="\e[47m"
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COLOR_BOLD="\e[1m"
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COLOR_DIM="\e[2m"
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COLOR_UNDERLINED="\e[4m"
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COLOR_BLINK="\e[5m"
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COLOR_INVERTED="\e[7m"
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fi
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fi
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return 0
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}
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