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(defstruct sockaddr nil
(:static family nil))
(defstruct sockaddr-in sockaddr
(addr 0) (port 0)
(:static family af-inet))
(defstruct sockaddr-in6 sockaddr
(addr 0) (port 0) (flow-info 0) (scope-id 0)
(:static family af-inet6))
(defstruct sockaddr-un sockaddr
path
(:static family af-unix))
(defstruct addrinfo nil
(flags 0)
(family 0)
(socktype 0)
(protocol 0)
(canonname 0))
(defvarl shut-rd 0)
(defvarl shut-wr 1)
(defvarl shut-rdwr 2)
(defun str-inaddr (addr : port)
(let ((d (logand addr #xFF))
(c (logand (ash addr -8) #xFF))
(b (logand (ash addr -16) #xFF))
(a (ash addr -24))
(p (if port `:@port` "")))
(if (or (> a 255) (minusp a))
(throwf 'eval-error "~s: ~a out of range for IPv4 address"
'str-inaddr addr)
`@a.@b.@c.@d@p`)))
(defun sys:in6addr-condensed-text (numeric-pieces)
(let* ((notyet t)
(texts (window-mappend
1 nil
(lambda (pre chunk post)
(cond
((and notyet (zerop (car chunk)) (cdr chunk))
(zap notyet)
(if (and post pre) '("") '(":")))
(t (mapcar (op format nil "~x") chunk))))
[partition-by zerop numeric-pieces])))
`@{texts ":"}`))
(defun str-in6addr (addr : port)
(let ((str (if (and (<= (width addr) 48)
(= (ash addr -32) #xFFFF))
`::ffff:@(str-inaddr (logtrunc addr 32))`
(let* ((pieces (let ((count 8))
(nexpand-left (lambda (val)
(if (minusp (dec count))
(unless (zerop val)
(throwf 'eval-error
"~s: \
\ ~a out of range \
\ for IPv6 address"
'str-in6addr
addr))
(cons (logand val #xFFFF)
(ash val -16))))
addr))))
(sys:in6addr-condensed-text pieces)))))
(if port
`[@str]:@port`
str)))
(defun sys:str-inaddr-net-impl (addr wextra : weff)
(let ((mask addr))
(set mask (logior mask (ash mask 1)))
(set mask (logior mask (ash mask 2)))
(set mask (logior mask (ash mask 4)))
(set mask (logior mask (ash mask 8)))
(set mask (logior mask (ash mask 16)))
(let* ((w (- 32 (width (lognot mask 32))))
(d (logand addr #xFF))
(c (logand (ash addr -8) #xFF))
(b (logand (ash addr -16) #xFF))
(a (ash addr -24))
(we (or weff (+ w wextra))))
(cond
((or (> a 255) (minusp a))
(throwf 'eval-error "~s: ~a out of range for IPv4 address"
'str-inaddr-net addr))
((> w 24) `@a.@b.@c.@d/@we`)
((> w 16) `@a.@b.@c/@we`)
((> w 8) `@a.@b/@we`)
(t `@a/@we`)))))
(defun str-inaddr-net (addr : width)
(sys:str-inaddr-net-impl addr 0 width))
(defun str-in6addr-net (addr : width)
(if (and (<= (width addr) 48)
(= (ash addr -32) #xFFFF))
`::ffff:@(sys:str-inaddr-net-impl (logtrunc addr 32) 96 width)`
(let ((mask addr))
(set mask (logior mask (ash mask 1)))
(set mask (logior mask (ash mask 2)))
(set mask (logior mask (ash mask 4)))
(set mask (logior mask (ash mask 8)))
(set mask (logior mask (ash mask 16)))
(set mask (logior mask (ash mask 32)))
(set mask (logior mask (ash mask 64)))
(let* ((w (- 128 (width (lognot mask 128))))
(pieces (let ((count 8))
(nexpand-left (lambda (val)
(if (minusp (dec count))
(unless (zerop val)
(throwf 'eval-error
"~s: \
\ ~a out of range \
\ for IPv6 address"
'str-in6addr-net
addr))
(cons (logand val #xFFFF)
(ash val -16))))
addr)))
(cand-prefix [pieces 0..(trunc (+ w 15) 16)])
(prefix (if (search cand-prefix '(0 0)) pieces cand-prefix)))
`@(sys:in6addr-condensed-text prefix)/@(or width w)`))))
(defplace (sock-peer sock) body
(getter setter
^(macrolet ((,getter () ^(sock-peer ',',sock))
(,setter (val) ^(sock-set-peer ,',sock ,val)))
,body)))
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