summaryrefslogtreecommitdiffstats
path: root/package/base-files/default/etc/functions.sh
blob: 7d34f57a497521770462cf199be882eee9c221b3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
#!/bin/sh
# Copyright (C) 2006 OpenWrt.org
# Copyright (C) 2006 Fokus Fraunhofer <carsten.tittel@fokus.fraunhofer.de>

alias debug=${DEBUG:-:}

# newline
N="
"

_C=0

hotplug_dev() {
	env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
}

append() {
	local var="$1"
	local value="$2"
	local sep="${3:- }"
	
	eval "$var=\"\${$var:+\${$var}${value:+$sep}}$value\""
}

reset_cb() {
	config_cb() { return 0; }
	option_cb() { return 0; }
}
reset_cb

config () {
	local cfgtype="$1"
	local name="$2"
    
	_C=$((_C + 1))
	name="${name:-cfg${_C}}"
	config_cb "$cfgtype" "$name"
	CONFIG_SECTION="$name"
	eval CONFIG_${CONFIG_SECTION}_TYPE="$cfgtype"
}

option () {
	local varname="$1"; shift
	
	eval CONFIG_${CONFIG_SECTION}_${varname}="$*"
	option_cb "$varname" "$*"
}

config_rename() {
	local OLD="$1"
	local NEW="$2"
	local oldvar
	local newvar
	
	[ "$OLD" -a "$NEW" ] || return
	for oldvar in `set | grep ^CONFIG_${OLD}_ | \
		sed -e 's/\(.*\)=.*$/\1/'` ; do
		newvar="CONFIG_${NEW}_${oldvar##CONFIG_${OLD}_}"
		eval "$newvar=\${$oldvar}"
		unset "$oldvar"
	done
	
	[ "$CONFIG_SECTION" = "$OLD" ] && CONFIG_SECTION="$NEW"
}

config_unset() {
	config_set "$1" "$2" ""
}

config_clear() {
	local SECTION="$1"
	local oldvar
	
	for oldvar in `set | grep ^CONFIG_${SECTION}_ | \
		sed -e 's/\(.*\)=.*$/\1/'` ; do 
		unset $oldvar 
	done
}

config_load() {
	local file="/etc/config/$1"
	_C=0
	CONFIG_SECTION=
	
	[ -e "$file" ] && {
		. $file
	} || return 1
	
	${CONFIG_SECTION:+config_cb}
}

config_get() {
	case "$3" in
		"") eval "echo \"\${CONFIG_${1}_${2}}\"";;
		*)  eval "$1=\"\${CONFIG_${2}_${3}}\"";;
	esac
}

config_set() {
	eval CONFIG_${1}_${2}="$3"
}

load_modules() {
	sed 's/^[^#]/insmod &/' $* | ash 2>&- || :
}

include() {
	local file
	
	for file in $(ls $1/*.sh 2>/dev/null); do
		. $file
	done
}

find_mtd_part() {
	local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')"
	
	PART="${PART##mtd}"
	echo "${PART:+/dev/mtdblock/$PART}"
}

strtok() { # <string> { <variable> [<separator>] ... }
	local tmp
	local val="$1"
	local count=0

	shift

	while [ $# -gt 1 ]; do
		tmp="${val%%$2*}"

		[ "$tmp" = "$val" ] && break

		val="${val#$tmp$2}"

		eval $1="$tmp"; count=$((count+1))
		shift 2
	done

	if [ $# -gt 0 -a "$val" ]; then
		eval $1="$val"; count=$((count+1))
	fi

	return $count
}