diff options
| -rw-r--r-- | networking/ifupdown.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/networking/ifupdown.c b/networking/ifupdown.c index 534c9f0c7..5481134e5 100644 --- a/networking/ifupdown.c +++ b/networking/ifupdown.c @@ -138,6 +138,7 @@ //usage: "\n -v Print out what would happen before doing it" //usage: "\n -f Force deconfiguration" +#include <net/if.h> #include "libbb.h" #include "common_bufsiz.h" /* After libbb.h, since it needs sys/types.h on some systems */ @@ -503,6 +504,8 @@ static int FAST_FUNC static_up6(struct interface_defn_t *ifd, execfn *exec) static int FAST_FUNC static_down6(struct interface_defn_t *ifd, execfn *exec) { + if (!if_nametoindex(ifd->iface)) + return 1; /* already gone */ # if ENABLE_FEATURE_IFUPDOWN_IP return execute("ip link set %iface% down", ifd, exec); # else @@ -598,6 +601,9 @@ static int FAST_FUNC static_up(struct interface_defn_t *ifd, execfn *exec) static int FAST_FUNC static_down(struct interface_defn_t *ifd, execfn *exec) { int result; + + if (!if_nametoindex(ifd->iface)) + return 2; /* already gone */ # if ENABLE_FEATURE_IFUPDOWN_IP /* Optional "label LBL" is necessary if interface is an alias (eth0:0), * otherwise "ip addr flush dev eth0:0" flushes all addresses on eth0. |