-/* Copyright (C) 1996,1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996,1997,1998 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
+
+/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
+ gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
+
\f
#include <stdio.h>
#include "feature.h"
#include "fports.h"
+#include "validate.h"
#include "socket.h"
#ifdef HAVE_STRING_H
#endif
#include <sys/types.h>
#include <sys/socket.h>
-#ifdef UNIX_DOMAIN_SOCKETS
+#ifdef HAVE_UNIX_DOMAIN_SOCKETS
#include <sys/un.h>
#endif
#include <netinet/in.h>
\f
-static SCM scm_sock_fd_to_port SCM_P ((int fd, char *proc));
+SCM_DEFINE (scm_htons, "htons", 1, 0, 0,
+ (SCM in),
+ "Returns a new integer from @var{value} by converting from host to\n"
+ "network order. @var{value} must be within the range of a C unsigned\n"
+ "short integer.")
+#define FUNC_NAME s_scm_htons
+{
+ unsigned short c_in;
+
+ SCM_VALIDATE_INUM_COPY (1,in,c_in);
+ if (c_in != SCM_INUM (in))
+ SCM_OUT_OF_RANGE (1,in);
+
+ return SCM_MAKINUM (htons (c_in));
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_ntohs, "ntohs", 1, 0, 0,
+ (SCM in),
+ "Returns a new integer from @var{value} by converting from network to\n"
+ "host order. @var{value} must be within the range of a C unsigned short\n"
+ "integer.")
+#define FUNC_NAME s_scm_ntohs
+{
+ unsigned short c_in;
+
+ SCM_VALIDATE_INUM_COPY (1,in,c_in);
+ if (c_in != SCM_INUM (in))
+ SCM_OUT_OF_RANGE (1,in);
+
+ return SCM_MAKINUM (ntohs (c_in));
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_htonl, "htonl", 1, 0, 0,
+ (SCM in),
+ "Returns a new integer from @var{value} by converting from host to\n"
+ "network order. @var{value} must be within the range of a C unsigned\n"
+ "long integer.")
+#define FUNC_NAME s_scm_htonl
+{
+ unsigned long c_in = SCM_NUM2ULONG (1,in);
+ return scm_ulong2num (htonl (c_in));
+}
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_ntohl, "ntohl", 1, 0, 0,
+ (SCM in),
+ "Returns a new integer from @var{value} by converting from network to\n"
+ "host order. @var{value} must be within the range of a C unsigned\n"
+ "long integer.")
+#define FUNC_NAME s_scm_ntohl
+{
+ unsigned long c_in = SCM_NUM2ULONG (1,in);
+ return scm_ulong2num (ntohl (c_in));
+}
+#undef FUNC_NAME
+
+SCM_SYMBOL (sym_socket, "socket");
static SCM
-scm_sock_fd_to_port (fd, proc)
- int fd;
- char *proc;
+scm_sock_fd_to_port (int fd, const char *proc)
{
SCM result;
- FILE *f;
-
if (fd == -1)
scm_syserror (proc);
- f = fdopen (fd, "r+");
- if (!f)
- {
- SCM_SYSCALL (close (fd));
- scm_syserror (proc);
- }
- SCM_NEWCELL (result);
- {
- struct scm_port_table *pt = scm_add_to_port_table (result);
-
- SCM_SETPTAB_ENTRY (result, pt);
- }
- SCM_SETCAR (result, scm_tc16_fport | scm_mode_bits ("r+0"));
- SCM_SETSTREAM (result, (SCM)f);
- scm_setbuf0 (result);
+ result = scm_fdes_to_port (fd, "r+0", sym_socket);
return result;
}
-SCM_PROC (s_socket, "socket", 3, 0, 0, scm_socket);
-SCM
-scm_socket (family, style, proto)
- SCM family;
- SCM style;
- SCM proto;
+#define SCM_SOCK_FD_TO_PORT(fd) (scm_sock_fd_to_port((fd),FUNC_NAME))
+
+SCM_DEFINE (scm_socket, "socket", 3, 0, 0,
+ (SCM family, SCM style, SCM proto),
+ "Returns a new socket port of the type specified by @var{family}, @var{style}\n"
+ "and @var{protocol}. All three parameters are integers. Typical values\n"
+ "for @var{family} are the values of @code{AF_UNIX}\n"
+ "and @code{AF_INET}. Typical values for @var{style} are\n"
+ "the values of @code{SOCK_STREAM}, @code{SOCK_DGRAM} and @code{SOCK_RAW}.\n\n"
+ "@var{protocol} can be obtained from a protocol name using\n"
+ "@code{getprotobyname}. A value of\n"
+ "zero specifies the default protocol, which is usually right.\n\n"
+ "A single socket port cannot by used for communication until\n"
+ "it has been connected to another socket.")
+#define FUNC_NAME s_scm_socket
{
int fd;
SCM result;
- SCM_ASSERT (SCM_INUMP (family), family, SCM_ARG1, s_socket);
- SCM_ASSERT (SCM_INUMP (style), style, SCM_ARG2, s_socket);
- SCM_ASSERT (SCM_INUMP (proto), proto, SCM_ARG3, s_socket);
- SCM_DEFER_INTS;
+ SCM_VALIDATE_INUM (1,family);
+ SCM_VALIDATE_INUM (2,style);
+ SCM_VALIDATE_INUM (3,proto);
fd = socket (SCM_INUM (family), SCM_INUM (style), SCM_INUM (proto));
- result = scm_sock_fd_to_port (fd, s_socket);
- SCM_ALLOW_INTS;
+ result = SCM_SOCK_FD_TO_PORT (fd);
return result;
}
+#undef FUNC_NAME
#ifdef HAVE_SOCKETPAIR
-SCM_PROC (s_socketpair, "socketpair", 3, 0, 0, scm_socketpair);
-
-SCM
-scm_socketpair (family, style, proto)
- SCM family;
- SCM style;
- SCM proto;
+SCM_DEFINE (scm_socketpair, "socketpair", 3, 0, 0,
+ (SCM family, SCM style, SCM proto),
+ "Returns a pair of connected (but unnamed) socket ports of the type specified\n"
+ "by @var{family}, @var{style} and @var{protocol}.\n"
+ "Many systems support only\n"
+ "socket pairs of the @code{AF_UNIX} family. Zero is likely to be\n"
+ "the only meaningful value for @var{protocol}.")
+#define FUNC_NAME s_scm_socketpair
{
int fam;
int fd[2];
SCM a;
SCM b;
- SCM_ASSERT (SCM_INUMP (family), family, SCM_ARG1, s_socketpair);
- SCM_ASSERT (SCM_INUMP (style), style, SCM_ARG2, s_socketpair);
- SCM_ASSERT (SCM_INUMP (proto), proto, SCM_ARG3, s_socketpair);
+ SCM_VALIDATE_INUM (1,family);
+ SCM_VALIDATE_INUM (2,style);
+ SCM_VALIDATE_INUM (3,proto);
fam = SCM_INUM (family);
- SCM_DEFER_INTS;
if (socketpair (fam, SCM_INUM (style), SCM_INUM (proto), fd) == -1)
- scm_syserror (s_socketpair);
+ SCM_SYSERROR;
- a = scm_sock_fd_to_port (fd[0], s_socketpair);
- b = scm_sock_fd_to_port (fd[1], s_socketpair);
- SCM_ALLOW_INTS;
+ a = SCM_SOCK_FD_TO_PORT(fd[0]);
+ b = SCM_SOCK_FD_TO_PORT(fd[1]);
return scm_cons (a, b);
}
-#endif
-
-SCM_PROC (s_getsockopt, "getsockopt", 3, 0, 0, scm_getsockopt);
-
-SCM
-scm_getsockopt (sock, level, optname)
- SCM sock;
- SCM level;
- SCM optname;
+#undef FUNC_NAME
+#endif
+
+SCM_DEFINE (scm_getsockopt, "getsockopt", 3, 0, 0,
+ (SCM sock, SCM level, SCM optname),
+ "Returns the value of a particular socket option for the socket\n"
+ "port @var{socket}. @var{level} is an integer code for type of option\n"
+ "being requested, e.g., @code{SOL_SOCKET} for socket-level options.\n"
+ "@var{optname} is an\n"
+ "integer code for the option required and should be specified using one of\n"
+ "the symbols @code{SO_DEBUG}, @code{SO_REUSEADDR} etc.\n\n"
+ "The returned value is typically an integer but @code{SO_LINGER} returns a\n"
+ "pair of integers.")
+#define FUNC_NAME s_scm_getsockopt
{
int fd;
int optlen;
optlen = (int) sizeof (scm_sizet);
#endif
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1,
- s_getsockopt);
- SCM_ASSERT (SCM_INUMP (level), level, SCM_ARG2, s_getsockopt);
- SCM_ASSERT (SCM_INUMP (optname), optname, SCM_ARG3, s_getsockopt);
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_INUM_COPY (2,level,ilevel);
+ SCM_VALIDATE_INUM_COPY (3,optname,ioptname);
- fd = fileno ((FILE *)SCM_STREAM (sock));
- ilevel = SCM_INUM (level);
- ioptname = SCM_INUM (optname);
+ fd = SCM_FPORT_FDES (sock);
if (getsockopt (fd, ilevel, ioptname, (void *) optval, &optlen) == -1)
- scm_syserror (s_getsockopt);
+ SCM_SYSERROR;
#ifdef SO_LINGER
if (ilevel == SOL_SOCKET && ioptname == SO_LINGER)
#endif
return SCM_MAKINUM (*(int *) optval);
}
-
-SCM_PROC (s_setsockopt, "setsockopt", 4, 0, 0, scm_setsockopt);
-
-SCM
-scm_setsockopt (sock, level, optname, value)
- SCM sock;
- SCM level;
- SCM optname;
- SCM value;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_setsockopt, "setsockopt", 4, 0, 0,
+ (SCM sock, SCM level, SCM optname, SCM value),
+ "Sets the value of a particular socket option for the socket\n"
+ "port @var{socket}. @var{level} is an integer code for type of option\n"
+ "being set, e.g., @code{SOL_SOCKET} for socket-level options.\n"
+ "@var{optname} is an\n"
+ "integer code for the option to set and should be specified using one of\n"
+ "the symbols @code{SO_DEBUG}, @code{SO_REUSEADDR} etc.\n"
+ "@var{value} is the value to which the option should be set. For\n"
+ "most options this must be an integer, but for @code{SO_LINGER} it must\n"
+ "be a pair.\n\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_setsockopt
{
int fd;
int optlen;
char optval[sizeof (scm_sizet)];
#endif
int ilevel, ioptname;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1,
- s_setsockopt);
- SCM_ASSERT (SCM_INUMP (level), level, SCM_ARG2, s_setsockopt);
- SCM_ASSERT (SCM_INUMP (optname), optname, SCM_ARG3, s_setsockopt);
- fd = fileno ((FILE *)SCM_STREAM (sock));
- ilevel = SCM_INUM (level);
- ioptname = SCM_INUM (optname);
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_INUM_COPY (2,level,ilevel);
+ SCM_VALIDATE_INUM_COPY (3,optname,ioptname);
+ fd = SCM_FPORT_FDES (sock);
if (0);
#ifdef SO_LINGER
else if (ilevel == SOL_SOCKET && ioptname == SO_LINGER)
{
#ifdef HAVE_STRUCT_LINGER
struct linger ling;
- SCM_ASSERT (SCM_NIMP (value) && SCM_CONSP (value)
+ SCM_ASSERT (SCM_CONSP (value)
&& SCM_INUMP (SCM_CAR (value))
&& SCM_INUMP (SCM_CDR (value)),
- value, SCM_ARG4, s_setsockopt);
+ value, SCM_ARG4, FUNC_NAME);
ling.l_onoff = SCM_INUM (SCM_CAR (value));
ling.l_linger = SCM_INUM (SCM_CDR (value));
optlen = (int) sizeof (struct linger);
memcpy (optval, (void *) &ling, optlen);
#else
scm_sizet ling;
- SCM_ASSERT (SCM_NIMP (value) && SCM_CONSP (value)
+ SCM_ASSERT (SCM_CONSP (value)
&& SCM_INUMP (SCM_CAR (value))
&& SCM_INUMP (SCM_CDR (value)),
- value, SCM_ARG4, s_setsockopt);
+ value, SCM_ARG4, FUNC_NAME);
ling = SCM_INUM (SCM_CAR (value));
optlen = (int) sizeof (scm_sizet);
(*(scm_sizet *) optval) = (scm_sizet) SCM_INUM (value);
#ifdef SO_SNDBUF
else if (ilevel == SOL_SOCKET && ioptname == SO_SNDBUF)
{
- SCM_ASSERT (SCM_INUMP (value), value, SCM_ARG4, s_setsockopt);
+ SCM_VALIDATE_INUM (4,value);
optlen = (int) sizeof (scm_sizet);
(*(scm_sizet *) optval) = (scm_sizet) SCM_INUM (value);
}
#ifdef SO_RCVBUF
else if (ilevel == SOL_SOCKET && ioptname == SO_RCVBUF)
{
- SCM_ASSERT (SCM_INUMP (value), value, SCM_ARG4, s_setsockopt);
+ SCM_VALIDATE_INUM (4,value);
optlen = (int) sizeof (scm_sizet);
(*(scm_sizet *) optval) = (scm_sizet) SCM_INUM (value);
}
else
{
/* Most options just take an int. */
- SCM_ASSERT (SCM_INUMP (value), value, SCM_ARG4, s_setsockopt);
+ SCM_VALIDATE_INUM (4,value);
optlen = (int) sizeof (int);
(*(int *) optval) = (int) SCM_INUM (value);
}
if (setsockopt (fd, ilevel, ioptname, (void *) optval, optlen) == -1)
- scm_syserror (s_setsockopt);
+ SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
-
-SCM_PROC (s_shutdown, "shutdown", 2, 0, 0, scm_shutdown);
-
-SCM
-scm_shutdown (sock, how)
- SCM sock;
- SCM how;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_shutdown, "shutdown", 2, 0, 0,
+ (SCM sock, SCM how),
+ "Sockets can be closed simply by using @code{close-port}. The\n"
+ "@code{shutdown} procedure allows reception or tranmission on a\n"
+ "connection to be shut down individually, according to the parameter\n"
+ "@var{how}:\n\n"
+ "@table @asis\n"
+ "@item 0\n"
+ "Stop receiving data for this socket. If further data arrives, reject it.\n"
+ "@item 1\n"
+ "Stop trying to transmit data from this socket. Discard any\n"
+ "data waiting to be sent. Stop looking for acknowledgement of\n"
+ "data already sent; don't retransmit it if it is lost.\n"
+ "@item 2\n"
+ "Stop both reception and transmission.\n"
+ "@end table\n\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_shutdown
{
int fd;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1,
- s_shutdown);
- SCM_ASSERT (SCM_INUMP (how) && 0 <= SCM_INUM (how) && 2 >= SCM_INUM (how),
- how, SCM_ARG2, s_shutdown);
- fd = fileno ((FILE *)SCM_STREAM (sock));
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_INUM (2,how);
+ SCM_ASSERT_RANGE(2,how,0 <= SCM_INUM (how) && 2 >= SCM_INUM (how));
+ fd = SCM_FPORT_FDES (sock);
if (shutdown (fd, SCM_INUM (how)) == -1)
- scm_syserror (s_shutdown);
+ SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
+#undef FUNC_NAME
/* convert fam/address/args into a sockaddr of the appropriate type.
args is modified by removing the arguments actually used.
size returns the size of the structure allocated. */
-static struct sockaddr * scm_fill_sockaddr SCM_P ((int fam, SCM address, SCM *args, int which_arg, char *proc, scm_sizet *size));
-
static struct sockaddr *
-scm_fill_sockaddr (fam, address, args, which_arg, proc, size)
- int fam;
- SCM address;
- SCM *args;
- int which_arg;
- char *proc;
- scm_sizet *size;
+scm_fill_sockaddr (int fam,SCM address,SCM *args,int which_arg,const char *proc,scm_sizet *size)
{
switch (fam)
{
soka = (struct sockaddr_in *)
scm_must_malloc (sizeof (struct sockaddr_in), proc);
+ /* e.g., for BSDs which don't like invalid sin_len. */
+ memset (soka, 0, sizeof (struct sockaddr_in));
soka->sin_family = AF_INET;
soka->sin_addr.s_addr =
htonl (scm_num2ulong (address, (char *) which_arg, proc));
- SCM_ASSERT (SCM_NIMP (*args) && SCM_CONSP (*args), *args,
+ SCM_ASSERT (SCM_CONSP (*args), *args,
which_arg + 1, proc);
isport = SCM_CAR (*args);
*args = SCM_CDR (*args);
*size = sizeof (struct sockaddr_in);
return (struct sockaddr *) soka;
}
-#ifdef UNIX_DOMAIN_SOCKETS
+#ifdef HAVE_UNIX_DOMAIN_SOCKETS
case AF_UNIX:
{
struct sockaddr_un *soka;
soka = (struct sockaddr_un *)
scm_must_malloc (sizeof (struct sockaddr_un), proc);
+ memset (soka, 0, sizeof (struct sockaddr_un));
soka->sun_family = AF_UNIX;
- SCM_ASSERT (SCM_NIMP (address) && SCM_ROSTRINGP (address), address,
+ SCM_ASSERT (SCM_ROSTRINGP (address), address,
which_arg, proc);
memcpy (soka->sun_path, SCM_ROCHARS (address),
1 + SCM_ROLENGTH (address));
}
}
-SCM_PROC (s_connect, "connect", 3, 0, 1, scm_connect);
-
-SCM
-scm_connect (sock, fam, address, args)
-
- SCM sock;
- SCM fam;
- SCM address;
- SCM args;
+SCM_DEFINE (scm_connect, "connect", 3, 0, 1,
+ (SCM sock, SCM fam, SCM address, SCM args),
+ "Initiates a connection from @var{socket} to the address\n"
+ "specified by @var{address} and possibly @var{arg @dots{}}. The format\n"
+ "required for @var{address}\n"
+ "and @var{arg} @dots{} depends on the family of the socket.\n\n"
+ "For a socket of family @code{AF_UNIX},\n"
+ "only @code{address} is specified and must be a string with the\n"
+ "filename where the socket is to be created.\n\n"
+ "For a socket of family @code{AF_INET},\n"
+ "@code{address} must be an integer Internet host address and @var{arg} @dots{}\n"
+ "must be a single integer port number.\n\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_connect
{
int fd;
struct sockaddr *soka;
scm_sizet size;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_connect);
- SCM_ASSERT (SCM_INUMP (fam), fam, SCM_ARG2, s_connect);
- fd = fileno ((FILE *)SCM_STREAM (sock));
- SCM_DEFER_INTS;
- soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args, 3, s_connect, &size);
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_INUM (2,fam);
+ fd = SCM_FPORT_FDES (sock);
+ soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args, 3, FUNC_NAME, &size);
if (connect (fd, soka, size) == -1)
- scm_syserror (s_connect);
+ SCM_SYSERROR;
scm_must_free ((char *) soka);
- SCM_ALLOW_INTS;
return SCM_UNSPECIFIED;
}
-
-SCM_PROC (s_bind, "bind", 3, 0, 1, scm_bind);
-
-SCM
-scm_bind (sock, fam, address, args)
- SCM sock;
- SCM fam;
- SCM address;
- SCM args;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_bind, "bind", 3, 0, 1,
+ (SCM sock, SCM fam, SCM address, SCM args),
+ "Assigns an address to the socket port @var{socket}.\n"
+ "Generally this only needs to be done for server sockets,\n"
+ "so they know where to look for incoming connections. A socket\n"
+ "without an address will be assigned one automatically when it\n"
+ "starts communicating.\n\n"
+ "The format of @var{address} and @var{ARG} @dots{} depends on the family\n"
+ "of the socket.\n\n"
+ "For a socket of family @code{AF_UNIX}, only @var{address}\n"
+ "is specified and must \n"
+ "be a string with the filename where the socket is to be created.\n\n"
+ "For a socket of family @code{AF_INET}, @var{address} must be an integer\n"
+ "Internet host address and @var{arg} @dots{} must be a single integer\n"
+ "port number.\n\n"
+ "The values of the following variables can also be used for @var{address}:\n\n"
+ "@defvar INADDR_ANY\n"
+ "Allow connections from any address.\n"
+ "@end defvar\n\n"
+ "@defvar INADDR_LOOPBACK\n"
+ "The address of the local host using the loopback device.\n"
+ "@end defvar\n\n"
+ "@defvar INADDR_BROADCAST\n"
+ "The broadcast address on the local network.\n"
+ "@end defvar\n\n"
+ "@defvar INADDR_NONE\n"
+ "No address.\n"
+ "@end defvar\n\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_bind
{
int rv;
struct sockaddr *soka;
scm_sizet size;
int fd;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_bind);
- SCM_ASSERT (SCM_INUMP (fam), fam, SCM_ARG2, s_bind);
- soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args, 3, s_bind, &size);
- fd = fileno ((FILE *)SCM_STREAM (sock));
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_INUM (2,fam);
+ soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args, 3, FUNC_NAME, &size);
+ fd = SCM_FPORT_FDES (sock);
rv = bind (fd, soka, size);
if (rv == -1)
- scm_syserror (s_bind);
+ SCM_SYSERROR;
+ scm_must_free ((char *) soka);
return SCM_UNSPECIFIED;
}
-
-SCM_PROC (s_listen, "listen", 2, 0, 0, scm_listen);
-
-SCM
-scm_listen (sock, backlog)
- SCM sock;
- SCM backlog;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_listen, "listen", 2, 0, 0,
+ (SCM sock, SCM backlog),
+ "This procedure enables @var{socket} to accept connection\n"
+ "requests. @var{backlog} is an integer specifying\n"
+ "the maximum length of the queue for pending connections.\n"
+ "If the queue fills, new clients will fail to connect until the\n"
+ "server calls @code{accept} to accept a connection from the queue.\n\n"
+ "The return value is unspecified.")
+#define FUNC_NAME s_scm_listen
{
int fd;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_listen);
- SCM_ASSERT (SCM_INUMP (backlog), backlog, SCM_ARG2, s_listen);
- fd = fileno ((FILE *)SCM_STREAM (sock));
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_INUM (2,backlog);
+ fd = SCM_FPORT_FDES (sock);
if (listen (fd, SCM_INUM (backlog)) == -1)
- scm_syserror (s_listen);
+ SCM_SYSERROR;
return SCM_UNSPECIFIED;
}
+#undef FUNC_NAME
/* Put the components of a sockaddr into a new SCM vector. */
-static SCM scm_addr_vector SCM_P ((struct sockaddr *address, char *proc));
-
static SCM
-scm_addr_vector (address, proc)
- struct sockaddr *address;
- char *proc;
+scm_addr_vector (struct sockaddr *address,const char *proc)
{
short int fam = address->sa_family;
SCM result;
SCM *ve;
-#ifdef UNIX_DOMAIN_SOCKETS
+#ifdef HAVE_UNIX_DOMAIN_SOCKETS
if (fam == AF_UNIX)
{
struct sockaddr_un *nad = (struct sockaddr_un *) address;
- result = scm_make_vector (SCM_MAKINUM (2), SCM_UNSPECIFIED, SCM_BOOL_F);
+ result = scm_make_vector (SCM_MAKINUM (2), SCM_UNSPECIFIED);
ve = SCM_VELTS (result);
ve[0] = scm_ulong2num ((unsigned long) fam);
ve[1] = scm_makfromstr (nad->sun_path,
if (fam == AF_INET)
{
struct sockaddr_in *nad = (struct sockaddr_in *) address;
- result = scm_make_vector (SCM_MAKINUM (3), SCM_UNSPECIFIED, SCM_BOOL_F);
+ result = scm_make_vector (SCM_MAKINUM (3), SCM_UNSPECIFIED);
ve = SCM_VELTS (result);
ve[0] = scm_ulong2num ((unsigned long) fam);
ve[1] = scm_ulong2num (ntohl (nad->sin_addr.s_addr));
ve[2] = scm_ulong2num ((unsigned long) ntohs (nad->sin_port));
}
else
- scm_misc_error (proc, "Unrecognised address family: %s",
+ scm_misc_error (proc, "Unrecognised address family: ~A",
scm_listify (SCM_MAKINUM (fam), SCM_UNDEFINED));
return result;
static char *scm_addr_buffer;
static int scm_addr_buffer_size;
-static void scm_init_addr_buffer SCM_P ((void));
-
static void
-scm_init_addr_buffer ()
+scm_init_addr_buffer (void)
{
scm_addr_buffer_size =
-#ifdef UNIX_DOMAIN_SOCKETS
+#ifdef HAVE_UNIX_DOMAIN_SOCKETS
(int) sizeof (struct sockaddr_un)
#else
0
scm_addr_buffer = scm_must_malloc (scm_addr_buffer_size, "address buffer");
}
-SCM_PROC (s_accept, "accept", 1, 0, 0, scm_accept);
-
-SCM
-scm_accept (sock)
- SCM sock;
+SCM_DEFINE (scm_accept, "accept", 1, 0, 0,
+ (SCM sock),
+ "Accepts a connection on a bound, listening socket @var{socket}. If there\n"
+ "are no pending connections in the queue, it waits until\n"
+ "one is available unless the non-blocking option has been set on the\n"
+ "socket.\n\n"
+ "The return value is a\n"
+ "pair in which the CAR is a new socket port for the connection and\n"
+ "the CDR is an object with address information about the client which\n"
+ "initiated the connection.\n\n"
+ "If the address is not available then the CDR will be an empty vector.\n\n"
+ "@var{socket} does not become part of the\n"
+ "connection and will continue to accept new requests.")
+#define FUNC_NAME s_scm_accept
{
int fd;
int newfd;
SCM newsock;
int tmp_size;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_accept);
- fd = fileno ((FILE *)SCM_STREAM (sock));
- SCM_DEFER_INTS;
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ fd = SCM_FPORT_FDES (sock);
tmp_size = scm_addr_buffer_size;
newfd = accept (fd, (struct sockaddr *) scm_addr_buffer, &tmp_size);
- newsock = scm_sock_fd_to_port (newfd, s_accept);
+ newsock = scm_sock_fd_to_port (newfd, FUNC_NAME);
if (tmp_size > 0)
- address = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, s_accept);
+ address = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, FUNC_NAME);
else
address = SCM_BOOL_F;
- SCM_ALLOW_INTS;
return scm_cons (newsock, address);
}
-
-SCM_PROC (s_getsockname, "getsockname", 1, 0, 0, scm_getsockname);
-
-SCM
-scm_getsockname (sock)
- SCM sock;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_getsockname, "getsockname", 1, 0, 0,
+ (SCM sock),
+ "Returns the address of @var{socket}, in the same form as the object\n"
+ "returned by @code{accept}. On many systems the address of a socket\n"
+ "in the @code{AF_FILE} namespace cannot be read.")
+#define FUNC_NAME s_scm_getsockname
{
int tmp_size;
int fd;
SCM result;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_getsockname);
- fd = fileno ((FILE *)SCM_STREAM (sock));
- SCM_DEFER_INTS;
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ fd = SCM_FPORT_FDES (sock);
tmp_size = scm_addr_buffer_size;
if (getsockname (fd, (struct sockaddr *) scm_addr_buffer, &tmp_size) == -1)
- scm_syserror (s_getsockname);
+ SCM_SYSERROR;
if (tmp_size > 0)
- result = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, s_getsockname);
+ result = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, FUNC_NAME);
else
result = SCM_BOOL_F;
- SCM_ALLOW_INTS;
return result;
}
-
-SCM_PROC (s_getpeername, "getpeername", 1, 0, 0, scm_getpeername);
-
-SCM
-scm_getpeername (sock)
- SCM sock;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_getpeername, "getpeername", 1, 0, 0,
+ (SCM sock),
+ "Returns the address of the socket that the socket @var{socket} is connected to,\n"
+ "in the same form as the object\n"
+ "returned by @code{accept}. On many systems the address of a socket\n"
+ "in the @code{AF_FILE} namespace cannot be read.")
+#define FUNC_NAME s_scm_getpeername
{
int tmp_size;
int fd;
SCM result;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_getpeername);
- fd = fileno ((FILE *)SCM_STREAM (sock));
- SCM_DEFER_INTS;
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ fd = SCM_FPORT_FDES (sock);
tmp_size = scm_addr_buffer_size;
if (getpeername (fd, (struct sockaddr *) scm_addr_buffer, &tmp_size) == -1)
- scm_syserror (s_getpeername);
+ SCM_SYSERROR;
if (tmp_size > 0)
- result = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, s_getpeername);
+ result = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, FUNC_NAME);
else
result = SCM_BOOL_F;
- SCM_ALLOW_INTS;
return result;
}
-
-SCM_PROC (s_recv, "recv!", 2, 1, 0, scm_recv);
-
-SCM
-scm_recv (sock, buf, flags)
- SCM sock;
- SCM buf;
- SCM flags;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_recv, "recv!", 2, 1, 0,
+ (SCM sock, SCM buf, SCM flags),
+ "Receives data from the socket port @var{socket}. @var{socket} must already\n"
+ "be bound to the address from which data is to be received.\n"
+ "@var{buf} is a string into which\n"
+ "the data will be written. The size of @var{buf} limits the amount of\n"
+ "data which can be received: in the case of packet\n"
+ "protocols, if a packet larger than this limit is encountered then some data\n"
+ "will be irrevocably lost.\n\n"
+ "The optional @var{flags} argument is a value or\n"
+ "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n"
+ "The value returned is the number of bytes read from the socket.\n\n"
+ "Note that the data is read directly from the socket file descriptor:any unread buffered port data is ignored.")
+#define FUNC_NAME s_scm_recv
{
int rv;
int fd;
int flg;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_recv);
- SCM_ASSERT (SCM_NIMP (buf) && SCM_STRINGP (buf), buf, SCM_ARG2, s_recv);
- fd = fileno ((FILE *)SCM_STREAM (sock));
-
- if (SCM_UNBNDP (flags))
- flg = 0;
- else
- flg = scm_num2ulong (flags, (char *) SCM_ARG3, s_recv);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_STRING (2,buf);
+ SCM_VALIDATE_INUM_DEF_COPY (3,flags,0,flg);
+ fd = SCM_FPORT_FDES (sock);
SCM_SYSCALL (rv = recv (fd, SCM_CHARS (buf), SCM_LENGTH (buf), flg));
if (rv == -1)
- scm_syserror (s_recv);
+ SCM_SYSERROR;
return SCM_MAKINUM (rv);
}
-
-SCM_PROC (s_send, "send", 2, 1, 0, scm_send);
-
-SCM
-scm_send (sock, message, flags)
- SCM sock;
- SCM message;
- SCM flags;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_send, "send", 2, 1, 0,
+ (SCM sock, SCM message, SCM flags),
+ "Transmits the string @var{message} on the socket port @var{socket}. \n"
+ "@var{socket} must already be bound to a destination address. The\n"
+ "value returned is the number of bytes transmitted -- it's possible for\n"
+ "this to be less than the length of @var{message} if the socket is\n"
+ "set to be non-blocking. The optional @var{flags} argument is a value or\n"
+ "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n"
+ "Note that the data is written directly to the socket file descriptor:\n"
+ "any unflushed buffered port data is ignored.")
+#define FUNC_NAME s_scm_send
{
int rv;
int fd;
int flg;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_send);
- SCM_ASSERT (SCM_NIMP (message) && SCM_ROSTRINGP (message), message, SCM_ARG2, s_send);
- fd = fileno ((FILE *)SCM_STREAM (sock));
-
- if (SCM_UNBNDP (flags))
- flg = 0;
- else
- flg = scm_num2ulong (flags, (char *) SCM_ARG3, s_send);
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_ROSTRING (2,message);
+ SCM_VALIDATE_INUM_DEF_COPY (3,flags,0,flg);
+ fd = SCM_FPORT_FDES (sock);
SCM_SYSCALL (rv = send (fd, SCM_ROCHARS (message), SCM_ROLENGTH (message), flg));
if (rv == -1)
- scm_syserror (s_send);
+ SCM_SYSERROR;
return SCM_MAKINUM (rv);
}
-
-SCM_PROC (s_recvfrom, "recvfrom!", 2, 3, 0, scm_recvfrom);
-
-SCM
-scm_recvfrom (sock, buf, flags, start, end)
- SCM sock;
- SCM buf;
- SCM flags;
- SCM start;
- SCM end;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_recvfrom, "recvfrom!", 2, 3, 0,
+ (SCM sock, SCM buf, SCM flags, SCM start, SCM end),
+ "Returns data from the socket port @var{socket} and also information about\n"
+ "where the data was received from. @var{socket} must already\n"
+ "be bound to the address from which data is to be received.\n"
+ "@code{buf}, is a string into which\n"
+ "the data will be written. The size of @var{buf} limits the amount of\n"
+ "data which can be received: in the case of packet\n"
+ "protocols, if a packet larger than this limit is encountered then some data\n"
+ "will be irrevocably lost.\n\n"
+ "The optional @var{flags} argument is a value or\n"
+ "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n"
+ "The value returned is a pair: the CAR is the number of bytes read from\n"
+ "the socket and the CDR an address object in the same form as returned by\n"
+ "@code{accept}.\n\n"
+ "The @var{start} and @var{end} arguments specify a substring of @var{buf}\n"
+ "to which the data should be written.\n\n"
+ "Note that the data is read directly from the socket file descriptor:\n"
+ "any unread buffered port data is ignored.")
+#define FUNC_NAME s_scm_recvfrom
{
int rv;
int fd;
int tmp_size;
SCM address;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1,
- s_recvfrom);
- SCM_ASSERT (SCM_NIMP (buf) && SCM_STRINGP (buf), buf, SCM_ARG2, s_recvfrom);
+ SCM_VALIDATE_OPFPORT (1,sock);
+ SCM_VALIDATE_STRING (2,buf);
cend = SCM_LENGTH (buf);
if (SCM_UNBNDP (flags))
flg = 0;
else
{
- flg = scm_num2ulong (flags, (char *) SCM_ARG3, s_recvfrom);
+ flg = SCM_NUM2ULONG (3,flags);
if (!SCM_UNBNDP (start))
{
- offset = (int) scm_num2long (start,
- (char *) SCM_ARG4, s_recvfrom);
+ offset = (int) SCM_NUM2LONG (4,start);
if (offset < 0 || offset >= cend)
- scm_out_of_range (s_recvfrom, start);
+ SCM_OUT_OF_RANGE (4, start);
if (!SCM_UNBNDP (end))
{
- int tend = (int) scm_num2long (end,
- (char *) SCM_ARG5, s_recvfrom);
+ int tend = (int) SCM_NUM2LONG (5,end);
if (tend <= offset || tend > cend)
- scm_out_of_range (s_recvfrom, end);
+ SCM_OUT_OF_RANGE (5, end);
cend = tend;
}
}
}
- fd = fileno ((FILE *)SCM_STREAM (sock));
+ fd = SCM_FPORT_FDES (sock);
tmp_size = scm_addr_buffer_size;
SCM_SYSCALL (rv = recvfrom (fd, SCM_CHARS (buf) + offset,
(struct sockaddr *) scm_addr_buffer,
&tmp_size));
if (rv == -1)
- scm_syserror (s_recvfrom);
+ SCM_SYSERROR;
if (tmp_size > 0)
- address = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, s_recvfrom);
+ address = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, FUNC_NAME);
else
address = SCM_BOOL_F;
return scm_cons (SCM_MAKINUM (rv), address);
}
-
-SCM_PROC (s_sendto, "sendto", 4, 0, 1, scm_sendto);
-
-SCM
-scm_sendto (sock, message, fam, address, args_and_flags)
- SCM sock;
- SCM message;
- SCM fam;
- SCM address;
- SCM args_and_flags;
+#undef FUNC_NAME
+
+SCM_DEFINE (scm_sendto, "sendto", 4, 0, 1,
+ (SCM sock, SCM message, SCM fam, SCM address, SCM args_and_flags),
+ "Transmits the string @var{message} on the socket port @var{socket}. The\n"
+ "destination address is specified using the @var{family}, @var{address} and\n"
+ "@var{arg} arguments, in a similar way to the @code{connect}\n"
+ "procedure. The\n"
+ "value returned is the number of bytes transmitted -- it's possible for\n"
+ "this to be less than the length of @var{message} if the socket is\n"
+ "set to be non-blocking. The optional @var{flags} argument is a value or\n"
+ "bitwise OR of MSG_OOB, MSG_PEEK, MSG_DONTROUTE etc.\n\n"
+ "Note that the data is written directly to the socket file descriptor:\n"
+ "any unflushed buffered port data is ignored.")
+#define FUNC_NAME s_scm_sendto
{
int rv;
int fd;
int flg;
struct sockaddr *soka;
scm_sizet size;
+ int save_err;
- SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_sendto);
- SCM_ASSERT (SCM_NIMP (message) && SCM_ROSTRINGP (message), message,
- SCM_ARG2, s_sendto);
- SCM_ASSERT (SCM_INUMP (fam), fam, SCM_ARG3, s_sendto);
- fd = fileno ((FILE *)SCM_STREAM (sock));
- SCM_DEFER_INTS;
+ sock = SCM_COERCE_OUTPORT (sock);
+ SCM_VALIDATE_FPORT (1,sock);
+ SCM_VALIDATE_ROSTRING (2,message);
+ SCM_VALIDATE_INUM (3,fam);
+ fd = SCM_FPORT_FDES (sock);
soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args_and_flags, 4,
- s_sendto, &size);
+ FUNC_NAME, &size);
if (SCM_NULLP (args_and_flags))
flg = 0;
else
{
- SCM_ASSERT (SCM_NIMP (args_and_flags) && SCM_CONSP (args_and_flags),
- args_and_flags, SCM_ARG5, s_sendto);
- flg = scm_num2ulong (SCM_CAR (args_and_flags), (char *) SCM_ARG5, s_sendto);
+ SCM_VALIDATE_CONS (5,args_and_flags);
+ flg = SCM_NUM2ULONG (5,SCM_CAR (args_and_flags));
}
SCM_SYSCALL (rv = sendto (fd, SCM_ROCHARS (message), SCM_ROLENGTH (message),
flg, soka, size));
- if (rv == -1)
- scm_syserror (s_sendto);
+ save_err = errno;
scm_must_free ((char *) soka);
- SCM_ALLOW_INTS;
+ errno = save_err;
+ if (rv == -1)
+ SCM_SYSERROR;
return SCM_MAKINUM (rv);
}
+#undef FUNC_NAME
\f
HCoop / bpt / guile.git / blobdiff