From: ludovic.courtes@laas.fr (Ludovic Courtès)
Cc: guile-user@gnu.org
Subject: Socket API improvement, patch #6
Date: Tue, 04 Oct 2005 16:08:13 +0200 [thread overview]
Message-ID: <87wtkt9xyq.fsf_-_@laas.fr> (raw)
In-Reply-To: <87slvog9sd.fsf@zip.com.au> (Kevin Ryde's message of "Thu, 29 Sep 2005 07:30:26 +1000")
Hi Kevin,
Kevin Ryde <user42@zip.com.au> writes:
> Looks like a memory leak here if scm_to_ulong throws an error.
> Obviously it won't normally, but a vector with any garbage could reach
> here. Maybe build the addr on the stack then memdup. Ditto the other
> cases.
Right, I fixed this one.
> What is #f here meant to support?
Mostly, it aims at being consistent with `_scm_from_sockaddr ()' which
may set the `path' element to `#f'.
> How about sizeof(c_unix->sun_path)?
Right, fixed.
> I think scm_to_locale_stringbuf will store nulls from the string but
> then SUN_LEN will truncate at the first one of those. Maybe nulls in
> the SCM should be an error (per scm_to_locale_stringn).
I added a sanity check for this, too (although I'm unsure if it's really
useful).
I attach a full patch which includes the test-case too, so that we don't
have too much of a hard time keeping track of the thing. ;-)
BTW, I should receive the papers from the FSF shortly.
Thanks,
Ludovic.
\f
--- orig/ice-9/networking.scm
+++ mod/ice-9/networking.scm
@@ -80,3 +80,5 @@
(define (sockaddr:path obj) (vector-ref obj 1))
(define (sockaddr:addr obj) (vector-ref obj 1))
(define (sockaddr:port obj) (vector-ref obj 2))
+(define (sockaddr:flowinfo obj) (vector-ref obj 3))
+(define (sockaddr:scopeid obj) (vector-ref obj 4))
--- orig/libguile/socket.c
+++ mod/libguile/socket.c
@@ -664,9 +664,9 @@
proc is the name of the original procedure.
size returns the size of the structure allocated. */
-static struct sockaddr *
+static SCM_C_INLINE_KEYWORD struct sockaddr *
scm_fill_sockaddr (int fam, SCM address, SCM *args, int which_arg,
- const char *proc, int *size)
+ const char *proc, size_t *size)
#define FUNC_NAME proc
{
switch (fam)
@@ -682,8 +682,7 @@
port = scm_to_int (SCM_CAR (*args));
*args = SCM_CDR (*args);
soka = (struct sockaddr_in *) scm_malloc (sizeof (struct sockaddr_in));
- if (!soka)
- scm_memory_error (proc);
+
#if HAVE_STRUCT_SOCKADDR_SIN_LEN
soka->sin_len = sizeof (struct sockaddr_in);
#endif
@@ -717,8 +716,7 @@
}
}
soka = (struct sockaddr_in6 *) scm_malloc (sizeof (struct sockaddr_in6));
- if (!soka)
- scm_memory_error (proc);
+
#if HAVE_STRUCT_SOCKADDR_IN6_SIN6_LEN
soka->sin6_len = sizeof (struct sockaddr_in6);
#endif
@@ -768,9 +766,9 @@
}
}
#undef FUNC_NAME
-
-SCM_DEFINE (scm_connect, "connect", 3, 0, 1,
- (SCM sock, SCM fam, SCM address, SCM args),
+
+SCM_DEFINE (scm_connect, "connect", 2, 1, 1,
+ (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args),
"Initiate a connection from a socket using a specified address\n"
"family to the address\n"
"specified by @var{address} and possibly @var{args}.\n"
@@ -787,22 +785,32 @@
"@var{args} may be up to three integers:\n"
"port [flowinfo] [scope_id],\n"
"where flowinfo and scope_id default to zero.\n\n"
+ "Alternatively, the second argument can be a socket address object "
+ "as returned by @code{make-socket-address}, in which case the "
+ "no additional arguments should be passed.\n\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_connect
{
int fd;
struct sockaddr *soka;
- int size;
+ size_t size;
sock = SCM_COERCE_OUTPORT (sock);
SCM_VALIDATE_OPFPORT (1, sock);
fd = SCM_FPORT_FDES (sock);
- soka = scm_fill_sockaddr (scm_to_int (fam), address, &args, 3, FUNC_NAME,
- &size);
+
+ if (address == SCM_UNDEFINED)
+ /* No third argument was passed to FAM_OR_SOCKADDR must actually be a
+ `socket address' object. */
+ soka = scm_to_sockaddr (fam_or_sockaddr, &size);
+ else
+ soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address,
+ &args, 3, FUNC_NAME, &size);
+
if (connect (fd, soka, size) == -1)
{
int save_errno = errno;
-
+
free (soka);
errno = save_errno;
SCM_SYSERROR;
@@ -812,8 +820,8 @@
}
#undef FUNC_NAME
-SCM_DEFINE (scm_bind, "bind", 3, 0, 1,
- (SCM sock, SCM fam, SCM address, SCM args),
+SCM_DEFINE (scm_bind, "bind", 2, 1, 1,
+ (SCM sock, SCM fam_or_sockaddr, SCM address, SCM args),
"Assign an address to the socket port @var{sock}.\n"
"Generally this only needs to be done for server sockets,\n"
"so they know where to look for incoming connections. A socket\n"
@@ -846,22 +854,33 @@
"may be up to three integers:\n"
"port [flowinfo] [scope_id],\n"
"where flowinfo and scope_id default to zero.\n\n"
+ "Alternatively, the second argument can be a socket address object "
+ "as returned by @code{make-socket-address}, in which case the "
+ "no additional arguments should be passed.\n\n"
"The return value is unspecified.")
#define FUNC_NAME s_scm_bind
{
struct sockaddr *soka;
- int size;
+ size_t size;
int fd;
sock = SCM_COERCE_OUTPORT (sock);
SCM_VALIDATE_OPFPORT (1, sock);
- soka = scm_fill_sockaddr (scm_to_int (fam), address, &args, 3, FUNC_NAME,
- &size);
fd = SCM_FPORT_FDES (sock);
+
+ if (address == SCM_UNDEFINED)
+ /* No third argument was passed to FAM_OR_SOCKADDR must actually be a
+ `socket address' object. */
+ soka = scm_to_sockaddr (fam_or_sockaddr, &size);
+ else
+ soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address,
+ &args, 3, FUNC_NAME, &size);
+
+
if (bind (fd, soka, size) == -1)
{
int save_errno = errno;
-
+
free (soka);
errno = save_errno;
SCM_SYSERROR;
@@ -893,8 +912,8 @@
#undef FUNC_NAME
/* Put the components of a sockaddr into a new SCM vector. */
-static SCM
-scm_addr_vector (const struct sockaddr *address, int addr_size,
+static SCM_C_INLINE_KEYWORD SCM
+_scm_from_sockaddr (const struct sockaddr *address, unsigned addr_size,
const char *proc)
{
short int fam = address->sa_family;
@@ -953,12 +972,212 @@
break;
#endif
default:
- scm_misc_error (proc, "Unrecognised address family: ~A",
+ result = SCM_UNSPECIFIED;
+ scm_misc_error (proc, "unrecognised address family: ~A",
scm_list_1 (scm_from_int (fam)));
+
}
return result;
}
+/* The publicly-visible function. Return a Scheme object representing
+ ADDRESS, an address of ADDR_SIZE bytes. */
+SCM
+scm_from_sockaddr (const struct sockaddr *address, unsigned addr_size)
+{
+ return (_scm_from_sockaddr (address, addr_size, "scm_from_sockaddr"));
+}
+
+/* Convert ADDRESS, an address object returned by either
+ `scm_from_sockaddr ()' or `scm_make_socket_address ()', into its C
+ representation. On success, a non-NULL pointer is returned and
+ ADDRESS_SIZE is updated to the actual size (in bytes) of the returned
+ address. The result must eventually be freed using `free ()'. */
+struct sockaddr *
+scm_to_sockaddr (SCM address, size_t *address_size)
+#define FUNC_NAME "scm_to_sockaddr"
+{
+ short int family;
+ struct sockaddr *c_address = NULL;
+
+ SCM_VALIDATE_VECTOR (1, address);
+
+ *address_size = 0;
+ family = scm_to_short (SCM_SIMPLE_VECTOR_REF (address, 0));
+
+ switch (family)
+ {
+ case AF_INET:
+ {
+ if (SCM_SIMPLE_VECTOR_LENGTH (address) != 3)
+ scm_misc_error (FUNC_NAME,
+ "invalid inet address representation: ~A",
+ scm_list_1 (address));
+ else
+ {
+ struct sockaddr_in c_inet;
+
+ c_inet.sin_addr.s_addr =
+ htonl (scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 1)));
+ c_inet.sin_port =
+ htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2)));
+ c_inet.sin_family = AF_INET;
+
+ *address_size = sizeof (c_inet);
+ c_address = scm_malloc (sizeof (c_inet));
+ memcpy (c_address, &c_inet, sizeof (c_inet));
+ }
+
+ break;
+ }
+
+#ifdef HAVE_IPV6
+ case AF_INET6:
+ {
+ if (SCM_SIMPLE_VECTOR_LENGTH (address) != 5)
+ scm_misc_error (FUNC_NAME, "invalid inet6 address representation: ~A",
+ scm_list_1 (address));
+ else
+ {
+ struct sockaddr_in6 c_inet6;
+
+ scm_to_ipv6 (c_inet6.sin6_addr.s6_addr, address);
+ c_inet6.sin6_port =
+ htons (scm_to_ushort (SCM_SIMPLE_VECTOR_REF (address, 2)));
+ c_inet6.sin6_flowinfo =
+ scm_to_uint32 (SCM_SIMPLE_VECTOR_REF (address, 3));
+#ifdef HAVE_SIN6_SCOPE_ID
+ c_inet6.sin6_scope_id =
+ scm_to_ulong (SCM_SIMPLE_VECTOR_REF (address, 4));
+#endif
+
+ c_inet6.sin6_family = AF_INET6;
+
+ *address_size = sizeof (c_inet6);
+ c_address = scm_malloc (sizeof (c_inet6));
+ memcpy (c_address, &c_inet6, sizeof (c_inet6));
+ }
+
+ break;
+ }
+#endif
+
+#ifdef HAVE_UNIX_DOMAIN_SOCKETS
+ case AF_UNIX:
+ {
+ if (SCM_SIMPLE_VECTOR_LENGTH (address) != 2)
+ scm_misc_error (FUNC_NAME, "invalid unix address representation: ~A",
+ scm_list_1 (address));
+ else
+ {
+ SCM path;
+ size_t path_len = 0;
+
+ path = SCM_SIMPLE_VECTOR_REF (address, 1);
+ if ((!scm_is_string (path)) && (path != SCM_BOOL_F))
+ scm_misc_error (FUNC_NAME, "invalid unix address "
+ "path: ~A", scm_list_1 (path));
+ else
+ {
+ struct sockaddr_un c_unix;
+
+ if (path == SCM_BOOL_F)
+ path_len = 0;
+ else
+ path_len = scm_c_string_length (path);
+
+#ifdef UNIX_PATH_MAX
+ if (path_len >= UNIX_PATH_MAX)
+#else
+/* We can hope that this limit will eventually vanish, at least on GNU.
+ However, currently, while glibc doesn't define `UNIX_PATH_MAX', it
+ documents it has being limited to 108 bytes. */
+ if (path_len >= sizeof (c_unix.sun_path))
+#endif
+ scm_misc_error (FUNC_NAME, "unix address path "
+ "too long: ~A", scm_list_1 (path));
+ else
+ {
+ if (path_len)
+ {
+ scm_to_locale_stringbuf (path, c_unix.sun_path,
+#ifdef UNIX_PATH_MAX
+ UNIX_PATH_MAX);
+#else
+ sizeof (c_unix.sun_path));
+#endif
+ c_unix.sun_path[path_len] = '\0';
+
+ /* Sanity check. */
+ if (strlen (c_unix.sun_path) != path_len)
+ scm_misc_error (FUNC_NAME, "unix address path "
+ "contains nul characters: ~A",
+ scm_list_1 (path));
+ }
+ else
+ c_unix.sun_path[0] = '\0';
+
+ c_unix.sun_family = AF_UNIX;
+
+ *address_size = SUN_LEN (&c_unix);
+ c_address = scm_malloc (sizeof (c_unix));
+ memcpy (c_address, &c_unix, sizeof (c_unix));
+ }
+ }
+ }
+
+ break;
+ }
+#endif
+
+ default:
+ scm_misc_error (FUNC_NAME, "unrecognised address family: ~A",
+ scm_list_1 (scm_from_ushort (family)));
+ }
+
+ return c_address;
+}
+#undef FUNC_NAME
+
+
+/* Return a newly-allocated `sockaddr' structure that reflects ADDRESS, being
+ an address of family FAMILY, with the family-specific parameters ARGS (see
+ the description of `connect' for details). The returned structure may be
+ freed using `free ()'. */
+struct sockaddr *
+scm_c_make_socket_address (SCM family, SCM address, SCM args,
+ size_t *address_size)
+{
+ size_t size;
+ struct sockaddr *soka;
+
+ soka = scm_fill_sockaddr (scm_to_ushort (family), address, &args, 1,
+ "scm_c_make_socket_address", &size);
+
+ return soka;
+}
+
+SCM_DEFINE (scm_make_socket_address, "make-socket-address", 2, 0, 1,
+ (SCM family, SCM address, SCM args),
+ "Return a Scheme address object that reflects @var{address}, "
+ "being an address of family @var{family}, with the "
+ "family-specific parameters @var{args} (see the description of "
+ "@code{connect} for details).")
+#define FUNC_NAME s_scm_make_socket_address
+{
+ struct sockaddr *c_address;
+ size_t c_address_size;
+
+ c_address = scm_c_make_socket_address (family, address, args,
+ &c_address_size);
+ if (!c_address)
+ return SCM_BOOL_F;
+
+ return (scm_from_sockaddr (c_address, c_address_size));
+}
+#undef FUNC_NAME
+
+\f
/* calculate the size of a buffer large enough to hold any supported
sockaddr type. if the buffer isn't large enough, certain system
calls will return a truncated address. */
@@ -1009,7 +1228,7 @@
if (newfd == -1)
SCM_SYSERROR;
newsock = SCM_SOCK_FD_TO_PORT (newfd);
- address = scm_addr_vector (addr, addr_size, FUNC_NAME);
+ address = _scm_from_sockaddr (addr, addr_size, FUNC_NAME);
return scm_cons (newsock, address);
}
#undef FUNC_NAME
@@ -1031,7 +1250,7 @@
fd = SCM_FPORT_FDES (sock);
if (getsockname (fd, addr, &addr_size) == -1)
SCM_SYSERROR;
- return scm_addr_vector (addr, addr_size, FUNC_NAME);
+ return _scm_from_sockaddr (addr, addr_size, FUNC_NAME);
}
#undef FUNC_NAME
@@ -1053,7 +1272,7 @@
fd = SCM_FPORT_FDES (sock);
if (getpeername (fd, addr, &addr_size) == -1)
SCM_SYSERROR;
- return scm_addr_vector (addr, addr_size, FUNC_NAME);
+ return _scm_from_sockaddr (addr, addr_size, FUNC_NAME);
}
#undef FUNC_NAME
@@ -1207,7 +1426,7 @@
if (rv == -1)
SCM_SYSERROR;
if (addr->sa_family != AF_UNSPEC)
- address = scm_addr_vector (addr, addr_size, FUNC_NAME);
+ address = _scm_from_sockaddr (addr, addr_size, FUNC_NAME);
else
address = SCM_BOOL_F;
@@ -1216,13 +1435,14 @@
}
#undef FUNC_NAME
-SCM_DEFINE (scm_sendto, "sendto", 4, 0, 1,
- (SCM sock, SCM message, SCM fam, SCM address, SCM args_and_flags),
+SCM_DEFINE (scm_sendto, "sendto", 3, 1, 1,
+ (SCM sock, SCM message, SCM fam_or_sockaddr, SCM address, SCM args_and_flags),
"Transmit the string @var{message} on the socket port\n"
"@var{sock}. The\n"
"destination address is specified using the @var{fam},\n"
"@var{address} and\n"
- "@var{args_and_flags} arguments, in a similar way to the\n"
+ "@var{args_and_flags} arguments, or just a socket address object "
+ "returned by @code{make-socket-address}, in a similar way to the\n"
"@code{connect} procedure. @var{args_and_flags} contains\n"
"the usual connection arguments optionally followed by\n"
"a flags argument, which is a value or\n"
@@ -1241,14 +1461,26 @@
int fd;
int flg;
struct sockaddr *soka;
- int size;
+ size_t size;
sock = SCM_COERCE_OUTPORT (sock);
SCM_VALIDATE_FPORT (1, sock);
SCM_VALIDATE_STRING (2, message);
fd = SCM_FPORT_FDES (sock);
- soka = scm_fill_sockaddr (scm_to_int (fam), address, &args_and_flags, 4,
- FUNC_NAME, &size);
+
+ if (!scm_is_number (fam_or_sockaddr))
+ {
+ /* FAM_OR_SOCKADDR must actually be a `socket address' object. This
+ means that the following arguments, i.e. ADDRESS and those listed in
+ ARGS_AND_FLAGS, are the `MSG_' flags. */
+ soka = scm_to_sockaddr (fam_or_sockaddr, &size);
+ if (address != SCM_UNDEFINED)
+ args_and_flags = scm_cons (address, args_and_flags);
+ }
+ else
+ soka = scm_fill_sockaddr (scm_to_int (fam_or_sockaddr), address,
+ &args_and_flags, 3, FUNC_NAME, &size);
+
if (scm_is_null (args_and_flags))
flg = 0;
else
--- orig/libguile/socket.h
+++ mod/libguile/socket.h
@@ -54,6 +54,16 @@
SCM_API SCM scm_sendto (SCM sockfd, SCM message, SCM fam, SCM address, SCM args_and_flags);
SCM_API void scm_init_socket (void);
+/* Wrapping/unwrapping address objects. */
+struct sockaddr;
+SCM_API SCM scm_from_sockaddr (const struct sockaddr *address,
+ unsigned addr_size);
+SCM_API struct sockaddr *scm_to_sockaddr (SCM address, size_t *adress_size);
+SCM_API struct sockaddr *scm_c_make_socket_address (SCM family, SCM address,
+ SCM args,
+ size_t *address_size);
+SCM_API SCM scm_make_socket_address (SCM family, SCM address, SCM args);
+
#endif /* SCM_SOCKET_H */
/*
--- orig/test-suite/tests/socket.test
+++ mod/test-suite/tests/socket.test
@@ -6,12 +6,12 @@
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 2.1 of the License, or (at your option) any later version.
-;;;;
+;;;;
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;;; Lesser General Public License for more details.
-;;;;
+;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
@@ -19,6 +19,7 @@
(define-module (test-suite test-numbers)
#:use-module (test-suite lib))
+\f
;;;
;;; inet-ntop
;;;
@@ -78,3 +79,177 @@
(eqv? #xF0
(inet-pton AF_INET6
"0000:0000:0000:0000:0000:0000:0000:00F0"))))))
+
+\f
+;;;
+;;; make-socket-address
+;;;
+
+(with-test-prefix "make-socket-address"
+ (if (defined? 'AF_INET)
+ (pass-if "AF_INET"
+ (let ((sa (make-socket-address AF_INET 123456 80)))
+ (and (= (sockaddr:fam sa) AF_INET)
+ (= (sockaddr:addr sa) 123456)
+ (= (sockaddr:port sa) 80)))))
+
+ (if (defined? 'AF_INET6)
+ (pass-if "AF_INET6"
+ ;; Since the platform doesn't necessarily support `scopeid', we won't
+ ;; test it.
+ (let ((sa* (make-socket-address AF_INET6 123456 80 1))
+ (sa+ (make-socket-address AF_INET6 123456 80)))
+ (and (= (sockaddr:fam sa*) (sockaddr:fam sa+) AF_INET6)
+ (= (sockaddr:addr sa*) (sockaddr:addr sa+) 123456)
+ (= (sockaddr:port sa*) (sockaddr:port sa+) 80)
+ (= (sockaddr:flowinfo sa*) 1)))))
+
+ (if (defined? 'AF_UNIX)
+ (pass-if "AF_UNIX"
+ (let ((sa (make-socket-address AF_UNIX "/tmp/unix-socket")))
+ (and (= (sockaddr:fam sa) AF_UNIX)
+ (string=? (sockaddr:path sa) "/tmp/unix-socket"))))))
+
+
+\f
+;;;
+;;; AF_UNIX sockets and `make-socket-address'
+;;;
+
+(if (defined? 'AF_UNIX)
+ (with-test-prefix "AF_UNIX/SOCK_DGRAM"
+
+ ;; testing `bind' and `sendto' and datagram sockets
+
+ (let ((server-socket (socket AF_UNIX SOCK_DGRAM 0))
+ (server-bound? #f)
+ (path (tmpnam)))
+
+ (pass-if "bind"
+ (catch 'system-error
+ (lambda ()
+ (bind server-socket AF_UNIX path)
+ (set! server-bound? #t)
+ #t)
+ (lambda args
+ (let ((errno (system-error-errno args)))
+ (cond ((= errno EADDRINUSE) (throw 'unresolved))
+ (else (apply throw args)))))))
+
+ (pass-if "bind/sockaddr"
+ (let* ((sock (socket AF_UNIX SOCK_STREAM 0))
+ (path (tmpnam))
+ (sockaddr (make-socket-address AF_UNIX path)))
+ (catch 'system-error
+ (lambda ()
+ (bind sock sockaddr)
+ (false-if-exception (delete-file path))
+ #t)
+ (lambda args
+ (let ((errno (system-error-errno args)))
+ (cond ((= errno EADDRINUSE) (throw 'unresolved))
+ (else (apply throw args))))))))
+
+ (pass-if "sendto"
+ (if (not server-bound?)
+ (throw 'unresolved)
+ (let ((client (socket AF_UNIX SOCK_DGRAM 0)))
+ (> (sendto client "hello" AF_UNIX path) 0))))
+
+ (pass-if "sendto/sockaddr"
+ (if (not server-bound?)
+ (throw 'unresolved)
+ (let ((client (socket AF_UNIX SOCK_DGRAM 0))
+ (sockaddr (make-socket-address AF_UNIX path)))
+ (> (sendto client "hello" sockaddr) 0))))
+
+ (false-if-exception (delete-file path)))))
+
+
+(if (defined? 'AF_UNIX)
+ (with-test-prefix "AF_UNIX/SOCK_STREAM"
+
+ ;; testing `bind', `listen' and `connect' on stream-oriented sockets
+
+ (let ((server-socket (socket AF_UNIX SOCK_STREAM 0))
+ (server-bound? #f)
+ (server-listening? #f)
+ (server-pid #f)
+ (path (tmpnam)))
+
+ (pass-if "bind"
+ (catch 'system-error
+ (lambda ()
+ (bind server-socket AF_UNIX path)
+ (set! server-bound? #t)
+ #t)
+ (lambda args
+ (let ((errno (system-error-errno args)))
+ (cond ((= errno EADDRINUSE) (throw 'unresolved))
+ (else (apply throw args)))))))
+
+ (pass-if "bind/sockaddr"
+ (let* ((sock (socket AF_UNIX SOCK_STREAM 0))
+ (path (tmpnam))
+ (sockaddr (make-socket-address AF_UNIX path)))
+ (catch 'system-error
+ (lambda ()
+ (bind sock sockaddr)
+ (false-if-exception (delete-file path))
+ #t)
+ (lambda args
+ (let ((errno (system-error-errno args)))
+ (cond ((= errno EADDRINUSE) (throw 'unresolved))
+ (else (apply throw args))))))))
+
+ (pass-if "listen"
+ (if (not server-bound?)
+ (throw 'unresolved)
+ (begin
+ (listen server-socket 123)
+ (set! server-listening? #t)
+ #t)))
+
+ (if server-listening?
+ (let ((pid (primitive-fork)))
+ ;; Spawn a server process.
+ (case pid
+ ((-1) (throw 'unresolved))
+ ((0) ;; the kid: serve two connections and exit
+ (let serve ((conn
+ (false-if-exception (accept server-socket)))
+ (count 1))
+ (if (not conn)
+ (exit 1)
+ (if (> count 0)
+ (serve (false-if-exception (accept server-socket))
+ (- count 1)))))
+ (exit 0))
+ (else ;; the parent
+ (set! server-pid pid)
+ #t))))
+
+ (pass-if "connect"
+ (if (not server-pid)
+ (throw 'unresolved)
+ (let ((s (socket AF_UNIX SOCK_STREAM 0)))
+ (connect s AF_UNIX path)
+ #t)))
+
+ (pass-if "connect/sockaddr"
+ (if (not server-pid)
+ (throw 'unresolved)
+ (let ((s (socket AF_UNIX SOCK_STREAM 0)))
+ (connect s (make-socket-address AF_UNIX path))
+ #t)))
+
+ (pass-if "accept"
+ (if (not server-pid)
+ (throw 'unresolved)
+ (let ((status (cdr (waitpid server-pid))))
+ (eq? 0 (status:exit-val status)))))
+
+ (false-if-exception (delete-file path))
+
+ #t)))
+
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next prev parent reply other threads:[~2005-10-04 14:08 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-04 14:37 Exposing common type wrapping/unwrapping methods Ludovic Courtès
2005-05-24 17:53 ` Marius Vollmer
2005-06-14 16:38 ` Ludovic Courtès
2005-08-19 7:57 ` Ludovic Courtès
2005-08-20 6:01 ` Ken Raeburn
2005-08-20 12:40 ` Marius Vollmer
2005-08-20 13:53 ` Ken Raeburn
2005-09-04 22:17 ` Marius Vollmer
2005-09-07 4:17 ` Rob Browning
2005-09-04 22:09 ` Marius Vollmer
2005-09-07 9:49 ` Ludovic Courtès
2005-09-21 9:16 ` Ludovic Courtès
2005-09-22 0:14 ` Kevin Ryde
2005-09-22 13:46 ` Ludovic Courtès
2005-09-22 21:30 ` Kevin Ryde
2005-09-26 9:37 ` Ludovic Courtès
2005-09-28 21:30 ` Kevin Ryde
2005-10-04 14:08 ` Ludovic Courtès [this message]
2005-10-17 10:55 ` Socket API improvement, patch #6 Ludovic Courtès
2005-10-17 21:43 ` Kevin Ryde
2005-10-18 7:45 ` Ludovic Courtès
2005-10-18 20:17 ` Marius Vollmer
2005-10-24 11:35 ` Ludovic Courtès
2005-10-24 21:42 ` Kevin Ryde
2005-10-25 21:24 ` Marius Vollmer
2005-10-27 1:06 ` Kevin Ryde
2005-10-27 8:49 ` Ludovic Courtès
2005-10-28 23:00 ` Kevin Ryde
2005-10-29 17:45 ` Marius Vollmer
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