0.9.10.20:

[sbcl.git] / contrib / sb-bsd-sockets / inet.lisp

diff --git a/contrib/sb-bsd-sockets/inet.lisp b/contrib/sb-bsd-sockets/inet.lisp
index 51e79d3..5879341 100644 (file)
--- a/contrib/sb-bsd-sockets/inet.lisp
+++ b/contrib/sb-bsd-sockets/inet.lisp
@@ -27,6 +27,13 @@ Examples:
        #'parse-integer
        (split dotted-quads nil '(#\.))))
 
+(define-condition unknown-protocol ()
+  ((name :initarg :name
+         :reader unknown-protocol-name))
+  (:report (lambda (c s)
+             (format s "Protocol not found: ~a" (prin1-to-string
+                                                 (unknown-protocol-name c))))))
+
 ;;; getprotobyname only works in the internet domain, which is why this
 ;;; is here
 (defun get-protocol-by-name (name)      ;exported
@@ -35,6 +42,8 @@ using getprotobyname(2) which typically looks in NIS or /etc/protocols"
   ;; for extra brownie points, could return canonical protocol name
   ;; and aliases as extra values
   (let ((ent (sockint::getprotobyname name)))
+    (if (sb-grovel::foreign-nullp ent)
+        (error 'unknown-protocol :name name))
     (sockint::protoent-proto ent)))
 
 ;;; our protocol provides make-sockaddr-for, size-of-sockaddr,
@@ -52,7 +61,7 @@ using getprotobyname(2) which typically looks in NIS or /etc/protocols"
 
       ;; We have no truck with such dreadful type punning.  Octets to
       ;; octets, dust to dust.
-      
+
       (setf (sockint::sockaddr-in-family sockaddr) sockint::af-inet)
       (setf (sb-alien:deref (sockint::sockaddr-in-port sockaddr) 0) (ldb (byte 8 8) port))
       (setf (sb-alien:deref (sockint::sockaddr-in-port sockaddr) 1) (ldb (byte 8 0) port))
@@ -73,11 +82,11 @@ using getprotobyname(2) which typically looks in NIS or /etc/protocols"
   "Returns address and port of SOCKADDR as multiple values"
   (values
    (coerce (loop for i from 0 below 4
-                collect (sb-alien:deref (sockint::sockaddr-in-addr sockaddr) i))
-          '(vector (unsigned-byte 8) 4))
+                 collect (sb-alien:deref (sockint::sockaddr-in-addr sockaddr) i))
+           '(vector (unsigned-byte 8) 4))
    (+ (* 256 (sb-alien:deref (sockint::sockaddr-in-port sockaddr) 0))
       (sb-alien:deref (sockint::sockaddr-in-port sockaddr) 1))))
-   
+
 (defun make-inet-socket (type protocol)
   "Make an INET socket.  Deprecated in favour of make-instance"
   (make-instance 'inet-socket :type type :protocol protocol))