693 lines
22 KiB
Bash
693 lines
22 KiB
Bash
##@cooked comments # -*- coding: utf-8 mode: sh -*- vim:sw=4:sts=4:et:ai:si:sta:fenc=utf-8
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## Calculateur d'adresse IP
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##@cooked nocomments
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##@require base
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uprovide ipcalc
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urequire base
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function get_random_kvm_macaddr() {
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# Obtenir une adresse mac au hasard commençant par 52:54:00 pour KVM
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echo "52:54:00:$(awk 'BEGIN {srand(); printf("%02X:%02X:%02X", rand()*256, rand()*256, rand()*256)}' 2>/dev/null)"
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}
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function ipcalc_splitipmask() {
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# Découper $1 de la forme ip[/mask] entre l'adresse ip, qui est placé dans
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# la variable $2(=ip) et le masque, qui est placée dans la variable
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# $3(=mask)
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if [[ "$1" == */* ]]; then
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_setv "${2:-ip}" "${1%%/*}"
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_setv "${3:-mask}" "${1#*/}"
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else
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_setv "${2:-ip}" "$1"
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_setv "${3:-mask}"
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fi
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}
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function ipcalc_checkip() {
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# Vérifier l'adresse ip $1 pour voir si elle est valide. Si l'adresse est
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# valide, l'afficher. Sinon, retourner 1
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awkrun status=0 '{
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# si l"adresse ne fait pas la taille voulue, rajouter des .0
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ip = $0
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gsub(/[^.]/, "", ip)
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count = length(ip)
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while (count < 3) {
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$0 = $0 ".0"
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count++
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}
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# puis tester la validité
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if ($0 !~ /^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$/) {
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status = 1
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exit
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}
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match($0, /([0-9]+)\.([0-9]+)\.([0-9]+)\.([0-9]+)/, ps)
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for (i = 1; i <= 4; i++) {
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p = 0 + ps[i]
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if (p > 255) {
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status = 1
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exit
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}
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}
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print $0
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}
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END { exit status }' <<<"$1"
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}
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function ipcalc_checkmask() {
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# vérifier le masque de sous-réseau $1 pour voir si elle est valide. Si oui,
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# afficher le suffixe (0, 8, 16, 24, 32) associé. Sinon retourner 1
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case "$1" in
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0|0.0.0.0) echo 0;;
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8|255.0.0.0) echo 8;;
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16|255.255.0.0) echo 16;;
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24|255.255.255.0) echo 24;;
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32|255.255.255.255) echo 32;;
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*) return 1;;
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esac
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return 0
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}
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function ipcalc_netmask() {
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# à partir d'un suffixe (0, 8, 16, 24, 32) ou d'un masque de sous-réseau,
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# afficher le masque de sous-réseau. si le suffixe ou le masque ne sont pas
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# reconnus, retourner 1
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case "$1" in
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0|0.0.0.0) echo 0.0.0.0;;
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8|255.0.0.0) echo 255.0.0.0;;
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16|255.255.0.0) echo 255.255.0.0;;
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24|255.255.255.0) echo 255.255.255.0;;
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32|255.255.255.255) echo 255.255.255.255;;
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*) return 1;;
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esac
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return 0
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}
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function ipcalc_network() {
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# Calculer l'adresse de réseau correspondant à l'adresse ip $1. Le masque
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# de sous-réseau peut-être indiqué dans l'adresse ip avec le suffixe /n ou
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# /x.x.x.x ou donné dans l'argument $2. Seuls les suffixes 0, 8, 16, 24, 32
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# sont supportés.
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# Retourner 1 si un erreur s'est produite, par exemple si l'adresse ou le
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# suffixe sont invalides ou non supportés.
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[ -n "$1" ] || return
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local ip mask
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ipcalc_splitipmask "$1" ip mask
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[ -n "$mask" ] || mask="$2"
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[ -n "$mask" ] || mask=24
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ip="$(ipcalc_checkip "$ip")" || return
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mask="$(ipcalc_checkmask "$mask")" || return
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case "$mask" in
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0) echo "0.0.0.0";;
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8) ip="${ip%.*.*.*}"; echo "$ip.0.0.0";;
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16) ip="${ip%.*.*}"; echo "$ip.0.0";;
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24) ip="${ip%.*}"; echo "$ip.0";;
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32) echo "$ip";;
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esac
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}
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function ipcalc_broadcast() {
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# Calculer l'adresse de broadcast correspondant à l'adresse ip $1. Le masque
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# de sous-réseau peut-être indiqué dans l'adresse ip avec le suffixe /n ou
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# /x.x.x.x ou donné dans l'argument $2. Seuls les suffixes 0, 8, 16, 24, 32
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# sont supportés.
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# Retourner 1 si un erreur s'est produite, par exemple si l'adresse ou le
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# suffixe sont invalides ou non supportés.
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[ -n "$1" ] || return
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local ip mask
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ipcalc_splitipmask "$1" ip mask
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[ -n "$mask" ] || mask="$2"
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[ -n "$mask" ] || mask=24
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ip="$(ipcalc_checkip "$ip")" || return
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mask="$(ipcalc_checkmask "$mask")" || return
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case "$mask" in
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0) echo "255.255.255.255";;
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8) ip="${ip%.*.*.*}"; echo "$ip.255.255.255";;
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16) ip="${ip%.*.*}"; echo "$ip.255.255";;
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24) ip="${ip%.*}"; echo "$ip.255";;
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32) echo "$ip";;
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esac
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}
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function ipcalc_gateway() {
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# Calculer l'adresse du gateway correspondant à l'adresse ip $1, en
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# considérant que le gateway est la première adresse du réseau. Le masque de
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# sous-réseau peut-être indiqué dans l'adresse ip avec le suffixe /n ou
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# /x.x.x.x ou donné dans l'argument $2. Seuls les suffixes 0, 8, 16, 24, 32
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# sont supportés.
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# Retourner 1 si un erreur s'est produite, par exemple si l'adresse ou le
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# suffixe sont invalides ou non supportés.
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[ -n "$1" ] || return
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local ip mask
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ipcalc_splitipmask "$1" ip mask
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[ -n "$mask" ] || mask="$2"
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[ -n "$mask" ] || mask=24
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ip="$(ipcalc_checkip "$ip")" || return
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mask="$(ipcalc_checkmask "$mask")" || return
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case "$mask" in
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0) echo "0.0.0.1";;
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8) ip="${ip%.*.*.*}"; echo "$ip.0.0.1";;
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16) ip="${ip%.*.*}"; echo "$ip.0.1";;
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24) ip="${ip%.*}"; echo "$ip.1";;
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32) echo "$ip";;
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esac
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}
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function ipcalc_match() {
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# Vérifier si l'adresse $1 correspond au modèle $2, e.g.:
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# ipcalc_match 10.75.0.23 10/8 --> TRUE
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# ipcalc_match 10.75.0.23 10.75.0.0/24 --> TRUE
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# ipcalc_match 10.75.0.23 10.75.0.28 --> FALSE
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[ -n "$1" -a -n "$2" ] || return
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local ip tip tmask
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ipcalc_splitipmask "$2" tip tmask
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[ -n "$tmask" ] || tmask=32
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ip="$(ipcalc_checkip "$1")" || return
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tip="$(ipcalc_checkip "$tip")" || return
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tmask="$(ipcalc_checkmask "$tmask")" || return
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case "$tmask" in
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0) return 0;;
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8) [ "${ip%.*.*.*}" == "${tip%.*.*.*}" ];;
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16) [ "${ip%.*.*}" == "${tip%.*.*}" ];;
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24) [ "${ip%.*}" == "${tip%.*}" ];;
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32) [ "$ip" == "$tip" ];;
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esac
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}
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function ipcalc_fqdn() {
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# Calculer si possible le nom pleinement qualifié correspondant à l'hôte $1.
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# Dans tous les cas, afficher l'hôte, mais retourner 1 si la calcul n'a pas
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# pu être effectué.
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local -a ips hosts
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local ip host
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if ! ips=("$(ipcalc_checkip "$1")"); then
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resolv_ips ips "$1"
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if [ -z "${ips[*]}" ]; then
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echo "$1"
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return 1
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fi
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fi
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for ip in "${ips[@]}"; do
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resolv_hosts hosts "$ip"
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if [ -n "${hosts[*]}" ]; then
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echo "${hosts[0]}"
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return 0
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fi
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done
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echo "$1"
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return 1
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}
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function ipcalc_fqdn_maybe() {
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# Si $1 *semble* déjà être un nom d'hôte pleinement qualifié, l'afficher tel
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# quel. Sinon utiliser ipcalc_fqdn() pour afficher le nom d'hôte pleinement
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# qualifié correspondant.
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if ipcalc_checkip "$1" >/dev/null; then
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ipcalc_fqdn "$1"
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elif [[ "$1" == *.* ]]; then
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echo "$1"
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else
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ipcalc_fqdn "$1"
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fi
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}
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################################################################################
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# Fonctions génériques pour la gestion du réseau
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__NETWORK_DEVEL_SHOW_MODIFS=
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function __network_parse_confbr() {
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local br; local -a ifaces
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splitpair "$1" br ifaces
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array_split ifaces "$ifaces" ,
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__npc_destbr="$br"
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array_copy __npc_destifaces ifaces
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}
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function network_parse_confbr() {
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# network_parse_confbr "$confbr" br ifaces
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local __npc_destbr; local -a __npc_destifaces
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__network_parse_confbr "$1"
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_setv "${2:-br}" "$__npc_destbr"
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array_copy "${3:-ifaces}" __npc_destifaces
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}
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function network_format_confbr() {
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# network_format_confbr "$br" ifaces --> "br:ifaces"
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echo "$1:$(array_join "${2:-ifaces}" ,)"
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}
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function __network_parse_confip() {
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local tmpig iface gateway; local -a ipsuffixes
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splitfsep2 "$1" : tmpig ipsuffixes
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splitfsep "$tmpig" // iface gateway
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array_split ipsuffixes "$ipsuffixes" ,
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__npc_destiface="$iface"
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__npc_destgateway="$gateway"
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array_copy __npc_destipsuffixes ipsuffixes
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}
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function network_parse_confip() {
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# network_parse_confip "$confip" iface gateway ipsuffixes
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local __npc_destiface __npc_destgateway; local -a __npc_destipsuffixes
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__network_parse_confip "$1"
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_setv "${2:-iface}" "$__npc_destiface"
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_setv "${3:-gateway}" "$__npc_destgateway"
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array_copy "${4:-ipsuffixes}" __npc_destipsuffixes
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}
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function network_parse_ipsuffix() {
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# network_parse_ipsuffix "$ipsuffix" ip suffix
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splitfsep "$1" / "${2:-ip}" "${3:-suffix}"
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}
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function network_format_confip() {
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# network_format_confip "$iface" "$gateway" ipsuffixes --> "iface//gateway:ipsuffixes"
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local tmpig="$1${2:+//$2}"
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echo "${tmpig:+$tmpig:}$(array_join "${3:-ipsuffixes}" ,)"
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}
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function network_format_ipsuffix() {
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# network_format_ipsuffix "$ip" "$suffix" --> "ip/suffix"
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local ip="$(strlower "$1")"
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if [ "$ip" == "dhcp" ]; then
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echo "$ip"
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else
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echo "$1${2:+/$2}"
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fi
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}
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function __network_fix_confbrs() {
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local -a confbrs ifaces brs ips
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local confbr br iface
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# recenser les bridges et créer les tableaux __BR_ifaces
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for confbr in "${__nfc_confbrs[@]}"; do
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network_parse_confbr "$confbr" br ifaces
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array_addu brs "$br"
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eval "local -a ${br}_ifaces"
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done
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# puis constuire la liste des interfaces associées à chaque bridge
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for confbr in "${__nfc_confbrs[@]}"; do
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network_parse_confbr "$confbr" br ifaces
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array_extendu "${br}_ifaces" ifaces
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done
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# puis construire le tableau final
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array_new confbrs
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for br in "${brs[@]}"; do
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array_add confbrs "$(network_format_confbr "$br" "${br}_ifaces")"
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done
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array_copy __nfc_destconfbrs confbrs
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}
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function network_fix_confbrs() {
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# normaliser le tableau $1(=confbrs): fusionner les doublons
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local -a __nfc_confbrs __nfc_destconfbrs
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array_copy __nfc_confbrs "${1:-confbrs}"
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__network_fix_confbrs
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array_copy "${1:-confbrs}" __nfc_destconfbrs
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}
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function __network_fix_confips() {
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local -a confips ipsuffixes ifaces ips
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local confip iface gateway network ip suffix mainip
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local mainiface="$1"
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# recenser les interfaces et créer les tableaux __IFACE_ipspecs
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for confip in "${__nfc_confips[@]}"; do
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network_parse_confip "$confip" iface gateway ipsuffixes
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if [ -n "$iface" ]; then
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network="${iface}_network"
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if ! array_contains ifaces "$iface"; then
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array_add ifaces "$iface"
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eval "local ${iface}_gateway $network; local -a ${iface}_ipsuffixes"
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fi
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if [ -z "${!network}" -a -n "${ipsuffixes[0]}" ]; then
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_setv "$network" "$(ipcalc_network "${ipsuffixes[0]}")"
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fi
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fi
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done
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if [ -n "$mainiface" ]; then
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iface="$mainiface"
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if ! array_contains ifaces "$iface"; then
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array_add ifaces "$iface"
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eval "local ${iface}_gateway $network; local -a ${iface}_ipsuffixes"
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fi
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fi
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# puis construire la liste des adresses IP associées à chaque interface
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for confip in "${__nfc_confips[@]}"; do
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network_parse_confip "$confip" iface gateway ipsuffixes
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# si aucune interface n'est spécifiée, sélectionner celle correspondant
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# à la même adresse de réseau. sinon prendre $mainiface
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if [ -z "$iface" ]; then
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network="$(ipcalc_network "${ipsuffixes[0]}")"
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local ip_iface ip_network
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for ip_iface in "${ifaces[@]}"; do
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ip_network="${ip_iface}_network"
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if [ "${!ip_network}" == "$network" ]; then
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iface="$ip_iface"
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break
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fi
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done
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fi
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[ -n "$iface" ] || iface="$mainiface"
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# si la passerelle a déjà été spécifiée, la récupérer
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local tmpgw="${iface}_gateway"
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[ -n "${!tmpgw}" ] && gateway="${!tmpgw}"
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# calculer l'adresse ip principale, pour pouvoir traiter le cas où
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# l'adresse ip principale est l'adresse de la passerelle.
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mainip=
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for ipsuffix in "${ipsuffixes[@]}"; do
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network_parse_ipsuffix "$ipsuffix" ip suffix
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if ! array_contains ips "$ip"; then
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[ -n "$suffix" ] || suffix=24
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if [ -z "$mainip" ]; then
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[ -n "$gateway" ] || gateway="$(ipcalc_gateway "$ip" "$suffix")"
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mainip="$ip"
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fi
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array_add "${iface}_ipsuffixes" "$(network_format_ipsuffix "$ip" "$suffix")"
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array_add ips "$ip"
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fi
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done
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[ "$gateway" == "$mainip" ] && gateway=
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# si l'adresse ip principale est obtenue par dhcp, il ne faut pas
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# spécifier la passerelle: elle sera fournie par le serveur DHCP.
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# Utiliser le marqueur "none" pour que la valeur ne soit pas modifiée.
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[ "${ipsuffixes[0]}" == "dhcp" ] && gateway=none
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_setv "${iface}_gateway" "$gateway"
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done
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# puis construire le tableau final
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array_new confips
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for iface in "${ifaces[@]}"; do
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gateway="${iface}_gateway"; gateway="${!gateway}"
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[ "$gateway" == "none" ] && gateway=
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array_add confips "$(network_format_confip "$iface" "$gateway" "${iface}_ipsuffixes")"
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done
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array_copy __nfc_destconfips confips
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}
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function network_fix_confips() {
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# normaliser le tableau $1(=confips): fusionner les doublons, spécifier le
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# suffixe /24 par défaut, etc. $2 est le cas échéant l'interface associée
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# aux adresses ip non qualifiées
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local -a __nfc_confips __nfc_destconfips
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array_copy __nfc_confips "${1:-confips}"
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__network_fix_confips "$2"
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array_copy "${1:-confips}" __nfc_destconfips
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}
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function __network_fix_mainiface() {
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local -a confips ifaces ipsuffixes
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local br iface gateway confip mainconfip
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local mainiface="$1"
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# déterminer mainiface
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if [ -z "$mainiface" -a -n "${__nfm_confbrs[0]}" ]; then
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network_parse_confbr "${__nfm_confbrs[0]}" br ifaces
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mainiface="$br"
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fi
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if [ -z "$mainiface" -a -n "${__nfm_confips[0]}" ]; then
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network_parse_confip "${__nfm_confips[0]}" iface gateway ipsuffixes
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mainiface="$iface"
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fi
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[ -n "$mainiface" ] || mainiface=eth0
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# ensuite, il faut reécrire confips avec la valeur de mainiface
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array_new confips
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for confip in "${__nfm_confips[@]}"; do
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network_parse_confip "$confip" iface gateway ipsuffixes
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[ -n "$iface" ] || iface="$mainiface"
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confip="$(network_format_confip "$iface" "$gateway" ipsuffixes)"
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if [ "$iface" == "$mainiface" ]; then
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mainconfip="$confip"
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else
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array_add confips "$confip"
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fi
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done
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[ -n "$mainconfip" ] && array_ins confips "$mainconfip"
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array_copy __nfm_destconfips confips
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}
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function network_fix_mainiface() {
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# A partir des valeurs des tableaux $1(=confbrs) et $2(=confips), et de
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# l'interface principale $3, déterminer l'interface principale. Si $3 est
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# spécifié, c'est la valeur sélectionnée. Sinon, si un bridge existe, c'est
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# le premier bridge qui est sélectionné. Sinon, la première interface est
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# sélectionnée. Sinon, on prend eth0.
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|
# Ensuite, réorganiser les tableaux de façon que confips[0] devienne la
|
|
# configuration ip de l'interface principale.
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|
local -a __nfm_confbrs __nfm_confips __nfm_destconfips
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|
array_copy __nfm_confbrs "${1:-confbrs}"
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|
array_copy __nfm_confips "${2:-confips}"
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|
__network_fix_mainiface "$3"
|
|
|
|
array_copy "${2:-confips}" __nfm_destconfips
|
|
}
|
|
|
|
function network_fix_confs() {
|
|
network_fix_confbrs "${1:-confbrs}"
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|
network_fix_confips "${2:-confips}"
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|
network_fix_mainiface "${1:-confbrs}" "${2:-confips}" "$3"
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|
}
|
|
|
|
function __network_valid_ifaces() {
|
|
ip link | awk '/<.*>/ {
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|
flags = $0; sub(/^.*</, ",", flags); sub(/>.*$/, ",", flags)
|
|
if (flags ~ /,LOOPBACK,/) next
|
|
if (flags !~ /,UP,/) next
|
|
sub(/:$/, "", $2); print $2
|
|
}'
|
|
}
|
|
|
|
function __network_set_confbrs() {
|
|
local -a ifaces tmpconfbrs confbrs
|
|
local confbr br iface
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|
array_from_lines ifaces "$(__network_valid_ifaces)"
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|
array_from_lines tmpconfbrs "$(brctl show 2>/dev/null | awk '
|
|
BEGIN { confbrs = "" }
|
|
NR == 1 { next }
|
|
{
|
|
if ($1 != "" && $2 != "") {
|
|
if (confbr != "") print confbr
|
|
confbr = $1 ":" $4
|
|
} else {
|
|
confbr = confbr "," $1
|
|
}
|
|
}
|
|
END {
|
|
if (confbr != "") print confbr
|
|
}
|
|
')"
|
|
for confbr in "${tmpconfbrs[@]}"; do
|
|
splitpair "$confbr" br iface
|
|
array_contains ifaces "$br" || continue
|
|
array_add confbrs "$confbr"
|
|
done
|
|
|
|
array_copy __nsc_destconfbrs confbrs
|
|
}
|
|
function network_set_confbrs() {
|
|
# initialiser $1(=confbrs) avec l'état des bridges sur le système courant
|
|
local -a __nsc_destconfbrs
|
|
__network_set_confbrs
|
|
|
|
array_copy "${1:-confbrs}" __nsc_destconfbrs
|
|
}
|
|
|
|
function __network_set_gateway() {
|
|
# initialiser la variable gateway avec la passerelle associée à l'interface
|
|
# $1
|
|
gateway="$(ip route | awk -v iface="$1" '$1 == "default" {
|
|
via = ""
|
|
dev = ""
|
|
for (i = 2; i <= NF; i++) {
|
|
if ($i == "via") via = $(i+1)
|
|
else if ($i == "dev") dev = $(i+1)
|
|
if (via != "" && dev != "") break
|
|
}
|
|
if (dev == iface && via != "") {
|
|
print via
|
|
}
|
|
}')"
|
|
# le code précédent utilisait route, mais ce n'est pas toujours disponible
|
|
#gateway="$(route -n | awk -v iface="$1" '$1 == "0.0.0.0" && $8 == iface { print $2 }')"
|
|
}
|
|
function __network_set_confip() {
|
|
# initialiser la variable confip avec l'état de l'interface $1, en assumant
|
|
# que la passerelle vaut $2.
|
|
# retourner 1 si l'interface n'a pas d'adresse ip associée
|
|
local -a ipsuffixes
|
|
array_from_lines ipsuffixes "$(ip addr show dev "$1" | awk '$1 == "inet" { print $2 }')"
|
|
confip="$(network_format_confip "$1" "$2" ipsuffixes)"
|
|
[ "${#ipsuffixes[*]}" -gt 0 ]
|
|
}
|
|
function __network_set_confips() {
|
|
local -a confips ifaces
|
|
local iface gateway
|
|
array_from_lines ifaces "$(__network_valid_ifaces)"
|
|
for iface in "${ifaces[@]}"; do
|
|
__network_set_gateway "$iface"
|
|
[ -n "$gateway" ] || gateway=-
|
|
__network_set_confip "$iface" "$gateway" || continue
|
|
array_add confips "$confip"
|
|
done
|
|
|
|
array_copy __nsc_destconfips confips
|
|
}
|
|
function network_set_confips() {
|
|
# initialiser le tableau $1(=confips) avec l'état des interfaces sur le
|
|
# système courant
|
|
local -a __nsc_destconfips
|
|
__network_set_confips
|
|
|
|
array_copy "${1:-confips}" __nsc_destconfips
|
|
}
|
|
|
|
function __network_backup() {
|
|
local file="$1"
|
|
local backup="$file.orig$(date +%Y%m%d)"
|
|
[ -f "$backup" ] || cat "$file" >"$backup" 2>/dev/null
|
|
}
|
|
|
|
function network_fix_exim4() {
|
|
local host="$1" oldhost="$2"
|
|
local tmpfile; ac_set_tmpfile tmpfile
|
|
local modified
|
|
|
|
sed </etc/exim4/update-exim4.conf.conf >"$tmpfile" "
|
|
/^dc_other_hostnames=/c\\
|
|
dc_other_hostnames='$host'"
|
|
if [ -n "$__NETWORK_DEVEL_SHOW_MODIFS" ]; then
|
|
if testdiff "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
|
|
uecho "Setting /etc/exim4/update-exim4.conf.conf to:"
|
|
cat "$tmpfile" | sed 's/^/ /g' 1>&2
|
|
else
|
|
uecho "/etc/exim4/update-exim4.conf.conf: pas de modifications"
|
|
fi
|
|
elif testdiff "$tmpfile" /etc/exim4/update-exim4.conf.conf; then
|
|
__network_backup /etc/exim4/update-exim4.conf.conf
|
|
if show_debug; then
|
|
edebug "Setting /etc/exim4/update-exim4.conf.conf to:"
|
|
cat "$tmpfile" | sed 's/^/ /g' 1>&2
|
|
else
|
|
estep /etc/exim4/update-exim4.conf.conf
|
|
fi
|
|
cat "$tmpfile" >/etc/exim4/update-exim4.conf.conf
|
|
update-exim4.conf
|
|
modified=1
|
|
fi
|
|
ac_clean "$tmpfile"
|
|
[ -n "$modified" ]
|
|
}
|
|
|
|
function network_fix_postfix() {
|
|
local host="$1" oldhost="$2"
|
|
local tmpfile; ac_set_tmpfile tmpfile
|
|
local modified
|
|
|
|
awkrun </etc/postfix/main.cf >"$tmpfile" host="$host" oldhost="$oldhost" '
|
|
/^myhostname *=/ { $0 = "myhostname = " host }
|
|
/^mydestination *=/ {
|
|
gsub(" *" oldhost " *,? *", "")
|
|
if ($0 !~ (" *" host " *,? *")) {
|
|
sub(/^mydestination *= */, "mydestination = " host ", ")
|
|
}
|
|
}
|
|
{ print }'
|
|
if [ -n "$__NETWORK_DEVEL_SHOW_MODIFS" ]; then
|
|
if testdiff "$tmpfile" /etc/postfix/main.cf; then
|
|
uecho "Setting /etc/postfix/main.cf to:"
|
|
cat "$tmpfile" | sed 's/^/ /g' 1>&2
|
|
else
|
|
uecho "/etc/postfix/main.cf: pas de modifications"
|
|
fi
|
|
elif testdiff "$tmpfile" /etc/postfix/main.cf; then
|
|
__network_backup /etc/postfix/main.cf
|
|
if show_debug; then
|
|
edebug "Setting /etc/postfix/main.cf to:"
|
|
cat "$tmpfile" | sed 's/^/ /g' 1>&2
|
|
else
|
|
estep /etc/postfix/main.cf
|
|
fi
|
|
cat "$tmpfile" >/etc/postfix/main.cf
|
|
modified=1
|
|
fi
|
|
ac_clean "$tmpfile"
|
|
[ -n "$modified" ]
|
|
}
|
|
|
|
function network_fix_hosts() {
|
|
local host="$1" hostname="${1%%.*}"; local shost="${host//./\\.}"
|
|
local ip="$2"; local sip="${ip//./\\.}"
|
|
local oldhost="$3" oldhostname="${3%%.*}"; soldhost="${host//./\\.}"
|
|
local tmpfile; ac_set_tmpfile tmpfile
|
|
local modified
|
|
|
|
awkrun </etc/hosts >"$tmpfile" \
|
|
host="$host" hostname="$hostname" \
|
|
ip="$ip" \
|
|
oldhost="$oldhost" oldhostname="$oldhostname" \
|
|
'
|
|
/^[^# \t]/ {
|
|
gsub("[ \\t]+" host "[ \\t]*", " ")
|
|
gsub("[ \\t]+" hostname "[ \\t]*", " ")
|
|
gsub("[ \\t]+" oldhost "[ \\t]*", " ")
|
|
gsub("[ \\t]+" oldhostname "[ \\t]*", " ")
|
|
if ($0 ~ /^[^ \t]+[ \t]*$/) next
|
|
gsub(/[ \t]*$/, "")
|
|
}
|
|
{ print }'
|
|
if quietgrep "^$sip[ $TAB]\\+$shost[ $TAB]\\+$hostname" "$tmpfile"; then
|
|
sed -i "\
|
|
s/\$/ /
|
|
/^[ $TAB]$oldhost[ $TAB]/d
|
|
/^[ $TAB]$oldhostname[ $TAB]/d
|
|
s/ \$//
|
|
" "$tmpfile"
|
|
fi
|
|
if ! quietgrep "^$sip[ $TAB]\\+$shost[ $TAB]\\+$hostname" "$tmpfile"; then
|
|
sed -i "/^$sip[ $TAB]/d" "$tmpfile"
|
|
sed -i "1i\\
|
|
$ip$TAB$host $hostname" "$tmpfile"
|
|
fi
|
|
|
|
if [ -n "$__NETWORK_DEVEL_SHOW_MODIFS" ]; then
|
|
if testdiff "$tmpfile" /etc/hosts; then
|
|
uecho "Setting /etc/hosts to:"
|
|
cat "$tmpfile" | sed 's/^/ /g' 1>&2
|
|
else
|
|
uecho "/etc/hosts: pas de modifications"
|
|
fi
|
|
elif testdiff "$tmpfile" /etc/hosts; then
|
|
__network_backup /etc/hosts
|
|
if show_debug; then
|
|
edebug "Setting /etc/hosts to:"
|
|
cat "$tmpfile" | sed 's/^/ /g' 1>&2
|
|
else
|
|
estep /etc/hosts
|
|
fi
|
|
cat "$tmpfile" >/etc/hosts
|
|
modified=1
|
|
fi
|
|
ac_clean "$tmpfile"
|
|
[ -n "$modified" ]
|
|
}
|