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Fix a possible infinite loop in "route flush" on 64-bit archs.

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MFC after:	3 days
This commit is contained in:
Hiroki Sato 2012-02-04 17:53:22 +00:00
parent 312ac3a23a
commit 87a688aaa1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=230989
1 changed files with 2 additions and 2 deletions
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4
sbin/route/route.c
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@ -460,8 +460,8 @@ netname(struct sockaddr *sa)
* Guess at the subnet mask, assuming reasonable
* width subnet fields.
*/
while (in.s_addr &~ mask)
mask = (long)mask >> subnetshift;
while (in.s_addr & ~mask)
mask |= mask >> subnetshift;
net = in.s_addr & mask;
while ((mask & 1) == 0)
mask >>= 1, net >>= 1;