78abf88dc
Denys Vlasenko
2010-05-02
Subject
ifdown: use /var/run/udhcpc.%iface%.pid only if it exists
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networking/ifupdown.c+4 -2
| @@ -573,8 +573,10 @@ static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd, execfn *exec) | |
| static int FAST_FUNC dhcp_down(struct interface_defn_t *ifd, execfn *exec) | |
| { | |
| int result; | |
| - | result = execute("kill " |
| - | "`cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", ifd, exec); |
| + | result = execute( |
| + | "test -f /var/run/udhcpc.%iface%.pid && " |
| + | "kill `cat /var/run/udhcpc.%iface%.pid` 2>/dev/null", |
| + | ifd, exec); |
| /* Also bring the hardware interface down since | |
| killing the dhcp client alone doesn't do it. | |
| This enables consecutive ifup->ifdown->ifup */ | |