contrib/sb-bsd-sockets/tests.lisp

   1 (defpackage "SB-BSD-SOCKETS-TEST"
   2   (:use "CL" "SB-BSD-SOCKETS" "SB-RT"))
   3
   4 (in-package :sb-bsd-sockets-test)
   5
   6 ;;; a real address
   7 (deftest make-inet-address
   8   (equalp (make-inet-address "127.0.0.1")  #(127 0 0 1))
   9   t)
  10 ;;; and an address with bit 8 set on some octets
  11 (deftest make-inet-address2
  12   (equalp (make-inet-address "242.1.211.3")  #(242 1 211 3))
  13   t)
  14
  15 (deftest get-protocol-by-name/tcp
  16     (integerp (get-protocol-by-name "tcp"))
  17   t)
  18
  19 (deftest get-protocol-by-name/udp
  20   (integerp (get-protocol-by-name "udp"))
  21   t)
  22
  23 (deftest get-protocol-by-name/error
  24   (handler-case (get-protocol-by-name "nonexistent-protocol")
  25     (unknown-protocol ()
  26       t)
  27     (:no-error ()
  28       nil))
  29   t)
  30
  31 (deftest make-inet-socket
  32   ;; make a socket
  33   (let ((s (make-instance 'inet-socket :type :stream :protocol (get-protocol-by-name "tcp"))))
  34     (and (> (socket-file-descriptor s) 1) t))
  35   t)
  36
  37 (deftest make-inet-socket-keyword
  38     ;; make a socket
  39     (let ((s (make-instance 'inet-socket :type :stream :protocol :tcp)))
  40       (and (> (socket-file-descriptor s) 1) t))
  41   t)
  42
  43 (deftest make-inet-socket-wrong
  44     ;; fail to make a socket: check correct error return.  There's no nice
  45     ;; way to check the condition stuff on its own, which is a shame
  46     (handler-case
  47         (make-instance 'inet-socket :type :stream :protocol (get-protocol-by-name "udp"))
  48       ;; CLH FIXME! some versions of darwin just return a socket error
  49       ;; here, not socket-type-not-supported-error or
  50       ;; protocol-not-supported-error.
  51       ((or #+darwin socket-error
  52         socket-type-not-supported-error
  53         protocol-not-supported-error)
  54           (c)
  55         (declare (ignorable c)) t)
  56       (:no-error nil))
  57   t)
  58
  59 (deftest make-inet-socket-keyword-wrong
  60     ;; same again with keywords
  61     (handler-case
  62         (make-instance 'inet-socket :type :stream :protocol :udp)
  63       ;; CLH FIXME! some versions of darwin just return a socket error
  64       ;; here, not socket-type-not-supported-error or
  65       ;; protocol-not-supported-error.
  66       ((or
  67         #+darwin socket-error
  68         protocol-not-supported-error
  69         socket-type-not-supported-error)
  70           (c)
  71         (declare (ignorable c)) t)
  72       (:no-error nil))
  73   t)
  74
  75
  76 (deftest non-block-socket
  77   (let ((s (make-instance 'inet-socket :type :stream :protocol :tcp)))
  78     (setf (non-blocking-mode s) t)
  79     (non-blocking-mode s))
  80   t)
  81
  82 (defun do-gc-portably ()
  83   ;; cmucl on linux has generational gc with a keyword argument,
  84   ;; sbcl GC function takes same arguments no matter what collector is in
  85   ;; use
  86   #+(or sbcl gencgc) (SB-EXT:gc :full t)
  87   ;; other platforms have full gc or nothing
  88   #-(or sbcl gencgc) (sb-ext:gc))
  89
  90 (deftest inet-socket-bind
  91   (let ((s (make-instance 'inet-socket :type :stream :protocol (get-protocol-by-name "tcp"))))
  92     ;; Given the functions we've got so far, if you can think of a
  93     ;; better way to make sure the bind succeeded than trying it
  94     ;; twice, let me know
  95     ;; 1974 has no special significance, unless you're the same age as me
  96     (do-gc-portably) ;gc should clear out any old sockets bound to this port
  97     (socket-bind s (make-inet-address "127.0.0.1") 1974)
  98     (handler-case
  99         (let ((s2 (make-instance 'inet-socket :type :stream :protocol (get-protocol-by-name "tcp"))))
 100           (socket-bind s2 (make-inet-address "127.0.0.1") 1974)
 101           nil)
 102       (address-in-use-error () t)))
 103   t)
 104
 105 (deftest simple-sockopt-test
 106   ;; test we can set SO_REUSEADDR on a socket and retrieve it, and in
 107   ;; the process that all the weird macros in sockopt happened right.
 108   (let ((s (make-instance 'inet-socket :type :stream :protocol (get-protocol-by-name "tcp"))))
 109     (setf (sockopt-reuse-address s) t)
 110     (sockopt-reuse-address s))
 111   t)
 112
 113 (defun read-buf-nonblock (buffer stream)
 114   "Like READ-SEQUENCE, but returns early if the full quantity of data isn't there to be read.  Blocks if no input at all"
 115   (let ((eof (gensym)))
 116     (do ((i 0 (1+ i))
 117          (c (read-char stream nil eof)
 118             (read-char-no-hang stream nil eof)))
 119         ((or (>= i (length buffer)) (not c) (eq c eof)) i)
 120       (setf (elt buffer i) c))))
 121
 122 #+internet-available
 123 (deftest name-service-return-type
 124   (vectorp (host-ent-address (get-host-by-address #(127 0 0 1))))
 125   t)
 126
 127 ;;; these require that the echo services are turned on in inetd
 128 #+internet-available
 129 (deftest simple-tcp-client
 130     (let ((s (make-instance 'inet-socket :type :stream :protocol :tcp))
 131           (data (make-string 200)))
 132       (socket-connect s #(127 0 0 1) 7)
 133       (let ((stream (socket-make-stream s :input t :output t :buffering :none)))
 134         (format stream "here is some text")
 135         (let ((data (subseq data 0 (read-buf-nonblock data stream))))
 136           (format t "~&Got ~S back from TCP echo server~%" data)
 137           (> (length data) 0))))
 138   t)
 139
 140 #+internet-available
 141 (deftest sockaddr-return-type
 142   (let ((s (make-instance 'inet-socket :type :stream :protocol :tcp)))
 143     (unwind-protect
 144          (progn
 145            (socket-connect s #(127 0 0 1) 7)
 146            (multiple-value-bind (host port) (socket-peername s)
 147              (and (vectorp host)
 148                   (numberp port))))
 149       (socket-close s)))
 150   t)
 151
 152 #+internet-available
 153 (deftest simple-udp-client
 154   (let ((s (make-instance 'inet-socket :type :datagram :protocol (get-protocol-by-name "udp")))
 155         (data (make-string 200)))
 156     (format t "Socket type is ~A~%" (sockopt-type s))
 157     (socket-connect s #(127 0 0 1) 7)
 158     (let ((stream (socket-make-stream s :input t :output t :buffering :none)))
 159       (format stream "here is some text")
 160       (let ((data (subseq data 0 (read-buf-nonblock data stream))))
 161         (format t "~&Got ~S back from UDP echo server~%" data)
 162         (> (length data) 0))))
 163   t)
 164
 165 ;;; A fairly rudimentary test that connects to the syslog socket and
 166 ;;; sends a message.  Priority 7 is kern.debug; you'll probably want
 167 ;;; to look at /etc/syslog.conf or local equivalent to find out where
 168 ;;; the message ended up
 169
 170 (deftest simple-local-client
 171     #-win32
 172     (progn
 173       ;; SunOS (Solaris) and Darwin systems don't have a socket at
 174       ;; /dev/log.  We might also be building in a chroot or
 175       ;; something, so don't fail this test just because the file is
 176       ;; unavailable, or if it's a symlink to some weird character
 177       ;; device.
 178       (when (block nil
 179               (handler-bind ((sb-posix:syscall-error
 180                               (lambda (e)
 181                                 (declare (ignore e))
 182                                 (return nil))))
 183                 (sb-posix:s-issock
 184                  (sb-posix::stat-mode (sb-posix:stat "/dev/log")))))
 185         (let ((s (make-instance 'local-socket :type :datagram)))
 186           (format t "Connecting ~A... " s)
 187           (finish-output)
 188           (handler-case
 189               (socket-connect s "/dev/log")
 190             (sb-bsd-sockets::socket-error ()
 191               (setq s (make-instance 'local-socket :type :stream))
 192               (format t "failed~%Retrying with ~A... " s)
 193               (finish-output)
 194               (socket-connect s "/dev/log")))
 195           (format t "ok.~%")
 196           (let ((stream (socket-make-stream s :input t :output t :buffering :none)))
 197             (format stream
 198                     "<7>bsd-sockets: Don't panic.  We're testing local-domain client code; this message can safely be ignored"))))
 199       t)
 200   t)
 201
 202
 203 ;;; these require that the internet (or bits of it, at least) is available
 204
 205 #+internet-available
 206 (deftest get-host-by-name
 207   (equalp (car (host-ent-addresses (get-host-by-name "a.root-servers.net")))
 208           #(198 41 0 4))
 209   t)
 210
 211 #+internet-available
 212 (deftest get-host-by-address
 213     (host-ent-name (get-host-by-address #(198 41 0 4)))
 214   "a.root-servers.net")
 215
 216 ;;; These days lots of people seem to be using DNS servers that don't
 217 ;;; report resolving failures for non-existing domains. This test
 218 ;;; will fail there, so we've disabled it.
 219 #+nil
 220 (deftest get-host-by-name-wrong
 221   (handler-case
 222    (get-host-by-name "foo.tninkpad.telent.net.")
 223    (NAME-SERVICE-ERROR () t)
 224    (:no-error nil))
 225   t)
 226
 227 (defun http-stream (host port request)
 228   (let ((s (make-instance 'inet-socket :type :stream :protocol :tcp)))
 229     (socket-connect
 230      s (car (host-ent-addresses (get-host-by-name host))) port)
 231     (let ((stream (socket-make-stream s :input t :output t :buffering :none)))
 232       (format stream "~A HTTP/1.0~%~%" request))
 233     s))
 234
 235 #+internet-available
 236 (deftest simple-http-client-1
 237     (handler-case
 238         (let ((s (http-stream "ww.telent.net" 80 "HEAD /")))
 239           (let ((data (make-string 200)))
 240             (setf data (subseq data 0
 241                                (read-buf-nonblock data
 242                                                   (socket-make-stream s))))
 243             (princ data)
 244             (> (length data) 0)))
 245       (network-unreachable-error () 'network-unreachable))
 246   t)
 247
 248
 249 #+internet-available
 250 (deftest sockopt-receive-buffer
 251     ;; on Linux x86, the receive buffer size appears to be doubled in the
 252     ;; kernel: we set a size of x and then getsockopt() returns 2x.
 253     ;; This is why we compare with >= instead of =
 254     (handler-case
 255         (let ((s (http-stream "ww.telent.net" 80 "HEAD /")))
 256           (setf (sockopt-receive-buffer s) 1975)
 257           (let ((data (make-string 200)))
 258             (setf data (subseq data 0
 259                                (read-buf-nonblock data
 260                                                   (socket-make-stream s))))
 261             (and (> (length data) 0)
 262                  (>= (sockopt-receive-buffer s) 1975))))
 263       (network-unreachable-error () 'network-unreachable))
 264   t)
 265
 266 (deftest socket-open-p-true.1
 267     (socket-open-p (make-instance 'inet-socket :type :stream :protocol :tcp))
 268   t)
 269 #+internet-available
 270 (deftest socket-open-p-true.2
 271     (let ((s (make-instance 'inet-socket :type :stream :protocol :tcp)))
 272       (unwind-protect
 273            (progn
 274              (socket-connect s #(127 0 0 1) 7)
 275              (socket-open-p s))
 276         (socket-close s)))
 277   t)
 278 (deftest socket-open-p-false
 279     (let ((s (make-instance 'inet-socket :type :stream :protocol :tcp)))
 280       (socket-close s)
 281       (socket-open-p s))
 282   nil)
 283
 284 ;;; we don't have an automatic test for some of this yet.  There's no
 285 ;;; simple way to run servers and have something automatically connect
 286 ;;; to them as client, unless we spawn external programs.  Then we
 287 ;;; have to start telling people what external programs they should
 288 ;;; have installed.  Which, eventually, we will, but not just yet
 289
 290
 291 ;;; to check with this: can display packets from multiple peers
 292 ;;; peer address is shown correctly for each packet
 293 ;;; packet length is correct
 294 ;;; long (>500 byte) packets have the full length shown (doesn't work)
 295
 296 (defun udp-server (port)
 297   (let ((s (make-instance 'inet-socket :type :datagram :protocol :udp)))
 298     (socket-bind s #(0 0 0 0) port)
 299     (loop
 300      (multiple-value-bind (buf len address port) (socket-receive s nil 500)
 301        (format t "Received ~A bytes from ~A:~A - ~A ~%"
 302                len address port (subseq buf 0 (min 10 len)))))))
 303
 304