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Fix for netmask('x.x.x.x/0') is 255.255.255.255 instead of 0.0.0.0
This is because (-1) << 32 is -1 (Only intel arc. has been checked) Oleg Sharoiko
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@ -3,7 +3,7 @@
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* is for IP V4 CIDR notation, but prepared for V6: just
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* add the necessary bits where the comments indicate.
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*
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* $Id: network.c,v 1.15 1999/07/17 20:17:58 momjian Exp $
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* $Id: network.c,v 1.16 1999/09/23 17:42:23 momjian Exp $
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* Jon Postel RIP 16 Oct 1998
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*/
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@ -448,7 +448,8 @@ network_netmask(inet *ip)
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if (ip_family(ip) == AF_INET)
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{
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/* It's an IP V4 address: */
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int addr = htonl((-1 << (32 - ip_bits(ip))) & 0xffffffff);
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int addr = htonl(ip_bits(ip) ?
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(-1 << (32 - ip_bits(ip))) & 0xffffffff : 0x00000000);
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if (inet_net_ntop(AF_INET, &addr, 32, tmp, sizeof(tmp)) == NULL)
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elog(ERROR, "unable to print netmask (%s)", strerror(errno));
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