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|
#!/bin/sh
# Make list of configuration variables regarding suid handling
# input $1: full path to autoconf.h
# input $2: full path to applets.h
# input $3: full path to .config
# output (stdout): list of CONFIG_ that do or may require suid
# If the environment variable SUID is not set or set to DROP,
# lists all config options that do not require suid permissions.
# Otherwise, lists all config options for applets that DO or MAY require
# suid permissions.
# Maintainer: Bernhard Reutner-Fischer
export LC_ALL=POSIX
export LC_CTYPE=POSIX
CONFIG_H=${1:-include/autoconf.h}
APPLETS_H=${2:-include/applets.h}
DOT_CONFIG=${3:-.config}
case ${SUID:-DROP} in
[dD][rR][oO][pP]) USE="DROP" ;;
*) USE="suid" ;;
esac
$HOSTCC -E -DMAKE_SUID -include $CONFIG_H $APPLETS_H |
awk -v USE=${USE} '
/^SUID[ \t]/{
if (USE == "DROP") {
if ($2 != "BB_SUID_DROP") next
} else {
if ($2 == "BB_SUID_DROP") next
}
cfg = $NF
gsub("\"", "", cfg)
cfg = substr(cfg, 8)
s[i++] = "CONFIG_" cfg
s[i++] = "CONFIG_FEATURE_" cfg "_.*"
}
END{
while (getline < ARGV[2]) {
for (j in s) {
if ($0 ~ "^" s[j] "=y$") {
sub(/=.*/, "")
print
if (s[j] !~ /\*$/) delete s[j] # can drop this applet now
}
}
}
}
' - $DOT_CONFIG
|
