mirror of
https://github.com/bol-van/zapret.git
synced 2024-11-26 20:20:53 +03:00
136 lines
2.1 KiB
Bash
136 lines
2.1 KiB
Bash
exists()
|
|
{
|
|
which "$1" >/dev/null 2>/dev/null
|
|
}
|
|
existf()
|
|
{
|
|
type "$1" >/dev/null 2>/dev/null
|
|
}
|
|
whichq()
|
|
{
|
|
which $1 2>/dev/null
|
|
}
|
|
exist_all()
|
|
{
|
|
while [ -n "$1" ]; do
|
|
exists "$1" || return 1
|
|
shift
|
|
done
|
|
return 0
|
|
}
|
|
on_off_function()
|
|
{
|
|
# $1 : function name on
|
|
# $2 : function name off
|
|
# $3 : 0 - off, 1 - on
|
|
local F="$1"
|
|
[ "$3" = "1" ] || F="$2"
|
|
shift
|
|
shift
|
|
shift
|
|
"$F" "$@"
|
|
}
|
|
contains()
|
|
{
|
|
# check if substring $2 contains in $1
|
|
[ "${1#*$2}" != "$1" ]
|
|
}
|
|
find_str_in_list()
|
|
{
|
|
[ -n "$1" ] && {
|
|
for v in $2; do
|
|
[ "$v" = "$1" ] && return 0
|
|
done
|
|
}
|
|
return 1
|
|
}
|
|
end_with_newline()
|
|
{
|
|
local c=$(tail -c 1)
|
|
[ "$c" = "" ]
|
|
}
|
|
make_separator_list()
|
|
{
|
|
# $1 - var name to receive result
|
|
# $2 - separator
|
|
# $3,$4,... - elements
|
|
local var="$1" sep="$2" i
|
|
|
|
shift; shift
|
|
while [ -n "$1" ]; do
|
|
if [ -n "$i" ] ; then
|
|
i=$i$sep$1
|
|
else
|
|
i=$1
|
|
fi
|
|
shift
|
|
done
|
|
eval $var=$i
|
|
}
|
|
make_comma_list()
|
|
{
|
|
# $1 - var name to receive result
|
|
# $2,$3,... - elements
|
|
local var="$1"
|
|
shift
|
|
make_separator_list $var , "$@"
|
|
}
|
|
|
|
is_linked_to_busybox()
|
|
{
|
|
local IFS F P
|
|
|
|
IFS=:
|
|
for path in $PATH; do
|
|
F=$path/$1
|
|
P="$(readlink $F)"
|
|
if [ -z "$P" ] && [ -x $F ] && [ ! -L $F ]; then return 1; fi
|
|
[ "${P%busybox*}" != "$P" ] && return
|
|
done
|
|
}
|
|
get_dir_inode()
|
|
{
|
|
local dir="$1"
|
|
[ -L "$dir" ] && dir=$(readlink "$dir")
|
|
ls -id "$dir" | awk '{print $1}'
|
|
}
|
|
|
|
linux_min_version()
|
|
{
|
|
# $1 - major ver
|
|
# $2 - minor ver
|
|
local V1=$(sed -nre 's/^Linux version ([0-9]+)\.[0-9]+.*$/\1/p' /proc/version)
|
|
local V2=$(sed -nre 's/^Linux version [0-9]+\.([0-9]+).*$/\1/p' /proc/version)
|
|
[ -n "$V1" -a -n "$V2" ] && [ "$V1" -gt "$1" -o "$V1" -eq "$1" -a "$V2" -ge "$2" ]
|
|
}
|
|
linux_get_subsys()
|
|
{
|
|
local INIT=$(sed 's/\x0/\n/g' /proc/1/cmdline | head -n 1)
|
|
|
|
[ -L "$INIT" ] && INIT=$(readlink "$INIT")
|
|
INIT=$(basename "$INIT")
|
|
if [ -f "/etc/openwrt_release" ] && [ "$INIT" = "procd" ] ; then
|
|
SUBSYS=openwrt
|
|
else
|
|
# generic linux
|
|
SUBSYS=
|
|
fi
|
|
}
|
|
openwrt_fw3()
|
|
{
|
|
[ ! -x /sbin/fw4 -a -x /sbin/fw3 ]
|
|
}
|
|
openwrt_fw4()
|
|
{
|
|
[ -x /sbin/fw4 ]
|
|
}
|
|
openwrt_fw3_integration()
|
|
{
|
|
[ "$FWTYPE" = iptables ] && openwrt_fw3
|
|
}
|
|
|
|
create_dev_stdin()
|
|
{
|
|
[ -e /dev/stdin ] || ln -s /proc/self/fd/0 /dev/stdin
|
|
}
|