On Sat, Aug 23, 2008 at 6:32 PM, Christian Weisgerber <[EMAIL PROTECTED]> wrote: > ropers <[EMAIL PROTECTED]> wrote: ... >> Does anyone know whether these alternative notations >> (dword/octal/hexadecimal...) are officially *supposed* to work? > > It's the input format specified for inet_aton() and friends. > I'm too lazy to research if this is actually in some standard or > just tradition going back 25 years to 4.2BSD.
It is part of the SUS/XOpen specification for inet_addr(). http://www.opengroup.org/onlinepubs/009695399/functions/inet_addr.html inet_aton() isn't part of SUS, though inet_pton() is. The standard notes that inet_pton() does not support the other formats for IPv4 addresses that inet_addr() does, only the official w.x.y.z format is accepted there. Philip Guenther
