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(Network Address Conversion): Under IPv4, describe

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numeric representation in Guile, add INADDR_LOOPBACK and
INADDR_BROADCAST, add commented-out INADDR_NONE.
This commit is contained in:
Kevin Ryde 2003-09-12 23:59:30 +00:00
parent 5c3917e7f5
commit 957f9f622d
1 changed files with 23 additions and 0 deletions
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doc/ref/posix.texi
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@ -1810,6 +1810,29 @@ between numeric and string formats.
@subsubsection IPv4 Address Conversion
An IPv4 Internet address is a 4-byte value, represented in Guile as an
integer in network byte order (meaning the first byte is the most
significant in the number).
@defvar INADDR_LOOPBACK
The address of the local host using the loopback device, ie.@:
@samp{127.0.0.1}.
@end defvar
@defvar INADDR_BROADCAST
The broadcast address on the local network.
@end defvar
@c INADDR_NONE is defined in the code, but serves no purpose.
@c inet_addr() returns it as an error indication, but that function
@c isn't provided, for the good reason that inet_aton() does the same
@c job and gives an unambiguous error indication. (INADDR_NONE is a
@c valid 4-byte value, in glibc it's the same as INADDR_BROADCAST.)
@c
@c @defvar INADDR_NONE
@c No address.
@c @end defvar
@deffn {Scheme Procedure} inet-aton address
@deffnx {C Function} scm_inet_aton (address)
Convert an IPv4 Internet address from printable string