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ip2net: fix ipv4 mask for /0

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bol-van 2022-12-12 21:51:04 +03:00
parent df8bef2a77
commit fa236ecc2c
1 changed files with 1 additions and 1 deletions
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2
ip2net/ip2net.c
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@ -49,7 +49,7 @@ static int ucmp(const void * a, const void * b, void *arg)
}
static uint32_t mask_from_bitcount(uint32_t zct)
{
return ~((1 << zct) - 1);
return zct<32 ? ~((1 << zct) - 1) : 0;
}
// make presorted array unique. return number of unique items.
// 1,1,2,3,3,0,0,0 (ct=8) => 1,2,3,0 (ct=4)