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LEARN ABOUT DEBIAN

ipsec_addrcmp

IPSEC_SAMEADDR(3)					     Library Functions Manual						 IPSEC_SAMEADDR(3)

NAME

       ipsec_sameaddr,	  ipsec_addrcmp,   ipsec_samesubnet,   ipsec_addrinsubnet,   ipsec_subnetinsubnet,   ipsec_subnetishost,   ipsec_samesaid,
       ipsec_sameaddrtype, ipsec_samesubnettype - do comparisons for addresses, subnets, SA IDs and address families

SYNOPSIS

       #include <freeswan.h>

       int sameaddr(const ip_address *a, const ip_address *b);
       int addrcmp(const ip_address *a, const ip_address *b);
       int samesubnet(const ip_subnet *a, const ip_subnet *b);
       int addrinsubnet(const ip_address *a, const ip_subnet *s);
       int subnetinsubnet(const ip_subnet *a, const ip_subnet *b);
       int subnetishost(const ip_subnet *s);
       int samesaid(const ip_said *a, const ip_said *b);
       int sameaddrtype(const ip_address *a, const ip_address *b);
       int samesubnettype(const ip_subnet *a, const ip_subnet *b);

DESCRIPTION

       These functions do various comparisons and tests on the ip_address type and ip_subnet types.

       Sameaddr returns non-zero if addresses a and b are identical, and 0 otherwise.  Addresses of different families are never identical.

       Addrcmp returns -1, 0, or 1 respectively if address a is less than, equal to, or greater than b.  If they are not of the same address  fam-
       ily, they are never equal; the ordering reported in this case is arbitrary (and probably not useful) but consistent.

       Samesubnet returns non-zero if subnets a and b are identical, and 0 otherwise.  Subnets of different address families are never identical.

       Addrinsubnet  returns non-zero if address a is within subnet s and 0 otherwise.	An address is never within a subnet of a different address
       family.

       Subnetinsubnet returns non-zero if subnet a is a subset of subnet b and 0 otherwise.  A subnet is deemed to be a subset of itself.  A  sub-
       net is never a subset of another subnet if their address families differ.

       Subnetishost returns non-zero if subnet s is in fact only a single host, and 0 otherwise.

       Samesaid returns non-zero if SA IDs a and b are identical, and 0 otherwise.

       Sameaddrtype returns non-zero if addresses a and b are of the same address family, and 0 otherwise.

       Samesubnettype returns non-zero if subnets a and b are of the same address family, and 0 otherwise.

SEE ALSO

       inet(3), ipsec_initaddr(3)

HISTORY

       Written for the FreeS/WAN project by Henry Spencer.

								    28 Nov 2000 						 IPSEC_SAMEADDR(3)

UNIX for Advanced & Expert Users