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If ifpromisc() fails the SIOCSIFFLAGS ioctl, put ifp->if_flags

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back the way we found them.
This commit is contained in:
brian 2001-04-02 21:49:40 +00:00
parent 146874eeb6
commit c7f3f4f692
1 changed files with 4 additions and 0 deletions
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4
sys/net/if.c
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@ -1016,7 +1016,9 @@ ifpromisc(ifp, pswitch)
{
struct ifreq ifr;
int error;
int oldflags;
oldflags = ifp->if_flags;
if (pswitch) {
/*
* If the device is not configured up, we cannot put it in
@ -1040,6 +1042,8 @@ ifpromisc(ifp, pswitch)
error = (*ifp->if_ioctl)(ifp, SIOCSIFFLAGS, (caddr_t)&ifr);
if (error == 0)
rt_ifmsg(ifp);
else
ifp->if_flags = oldflags;
return error;
}