Node:Network Address Conversion, Next:Network Databases, Up:Networking
This section describes procedures which convert internet addresses between numeric and string formats.
| inet-aton address | Scheme Procedure |
| scm_inet_aton (address) | C Function |
Convert an IPv4 Internet address from printable string
(dotted decimal notation) to an integer. E.g.,
(inet-aton "127.0.0.1") => 2130706433 |
| inet-ntoa inetid | Scheme Procedure |
| scm_inet_ntoa (inetid) | C Function |
Convert an IPv4 Internet address to a printable
(dotted decimal notation) string. E.g.,
(inet-ntoa 2130706433) => "127.0.0.1" |
| inet-netof address | Scheme Procedure |
| scm_inet_netof (address) | C Function |
Return the network number part of the given IPv4
Internet address. E.g.,
(inet-netof 2130706433) => 127 |
| inet-lnaof address | Scheme Procedure |
| scm_lnaof (address) | C Function |
Return the local-address-with-network part of the given
IPv4 Internet address, using the obsolete class A/B/C system.
E.g.,
(inet-lnaof 2130706433) => 1 |
| inet-makeaddr net lna | Scheme Procedure |
| scm_inet_makeaddr (net, lna) | C Function |
Make an IPv4 Internet address by combining the network number
net with the local-address-within-network number
lna. E.g.,
(inet-makeaddr 127 1) => 2130706433 |
| inet-ntop family address | Scheme Procedure |
| scm_inet_ntop (family, address) | C Function |
Convert a network address into a printable string.
Note that unlike the C version of this function,
the input is an integer with normal host byte ordering.
family can be AF_INET or AF_INET6. E.g.,
(inet-ntop AF_INET 2130706433) => "127.0.0.1" (inet-ntop AF_INET6 (- (expt 2 128) 1)) => ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff |
| inet-pton family address | Scheme Procedure |
| scm_inet_pton (family, address) | C Function |
Convert a string containing a printable network address to
an integer address. Note that unlike the C version of this
function,
the result is an integer with normal host byte ordering.
family can be AF_INET or AF_INET6. E.g.,
(inet-pton AF_INET "127.0.0.1") => 2130706433 (inet-pton AF_INET6 "::1") => 1 |