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#!/bin/bash -e
# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
ROOT="/"
LDSO_CONF="/etc/ld.so.conf"
if [[ ! -e $LDSO_CONF ]]; then
echo "$LDSO_CONF not found" >&2
exit 1
fi
LDSO_CONF_DIR=$(dirname $LDSO_CONF)
VERBOSE=0
UPDATE_LINKS=1
get_options() {
while getopts "vnNXf:C:r:p" opt "$@"; do
case $opt in
v)
echo "ldconfig for musl in Gentoo"
VERBOSE=1
;;
r)
ROOT=$OPTARG
;;
f)
LDSO_CONF=$OPTARG
;;
X)
UPDATE_LINKS=0
;;
\?)
echo "Invalid option: -$opt" >&2
exit 1
;;
n|N|C|p)
echo "Unimplemented option: -$opt" >&2
exit 1
;;
esac
done
if [[ $UPDATE_LINKS == 1 ]]; then
echo "Updating links is not implemented."
fi
}
repeated() {
local l=$1
local drs="${@:2}"
for m in $drs; do
[[ $m == $l ]] && return 0
done
return 1
}
expand() {
# We are assuming the ld.so.conf's 'include' is not recursive
local f line l
local glob="$LDSO_CONF_DIR/$1"
local drs="${@:2} "
for f in $glob; do
[[ ! -f $f ]] && continue
while read line; do
line=${line%%#*}
line=${line//:/ }
line=${line//,/ }
for l in $line; do
#We must add this whether or not the directory exists
repeated $l $drs && continue
drs+=" $l "
done
done < $f
done
echo $drs
}
read_ldso_conf() {
local drs=" "
while read line; do
# Sanitize the line - see ldconfig(8) for delimiters
# Note: bash read turns tabs into spaces and read already
# delimits on newlines with the default $IFS
line=${line%%#*} # Remove comments
line=${line//:/ } # Change colon delimiter to space
line=${line//,/ } # Change comma delimiter to space
next=0
for l in $line; do
if [[ $next == 1 ]]; then
next=0
drs=$(expand $l $drs)
elif [[ $l == "include" ]]; then
next=1
else
# glibc's ldconfig silently skips non directories
if [[ -d $l ]]; then
repeated $l $drs && continue
drs+=" $l "
fi
fi
done
done < $1
echo $drs
}
sanitize() {
local drs=$@
repeated "/lib" $drs || drs="/lib $drs"
repeated "/usr/lib" $drs || drs="/usr/lib $drs"
echo $drs
}
get_options "$@"
drs=$(read_ldso_conf "$LDSO_CONF")
drs=$(sanitize $drs)
ARCH=@@ARCH@@
LDSO_PATH="/lib/ld-musl-${ARCH}.so.1"
if [[ ! -e $LDSO_PATH ]]; then
echo "$LDSO_PATH not found" >&2
exit 1
fi
LDSO_ARCH=$(basename $LDSO_PATH)
LDSO_NAME=${LDSO_ARCH%.so.1}
ETC_LDSO_PATH=/etc/${LDSO_NAME}.path
X=$(mktemp -p /tmp ${LDSO_NAME}.XXXXXX)
for d in $drs; do
echo $d >> $X
done
chmod 644 $X
mv $X $ETC_LDSO_PATH
|
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