-/* "socket.c" internet socket support for client/server in SCM
- * Copyright (C) 1995,1996 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
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this software; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * As a special exception, the Free Software Foundation gives permission
- * for additional uses of the text contained in its release of GUILE.
- *
- * The exception is that, if you link the GUILE library with other files
- * to produce an executable, this does not by itself cause the
- * resulting executable to be covered by the GNU General Public License.
- * Your use of that executable is in no way restricted on account of
- * linking the GUILE library code into it.
- *
- * This exception does not however invalidate any other reasons why
- * the executable file might be covered by the GNU General Public License.
- *
- * This exception applies only to the code released by the
- * Free Software Foundation under the name GUILE. If you copy
- * code from other Free Software Foundation releases into a copy of
- * GUILE, as the General Public License permits, the exception does
- * not apply to the code that you add in this way. To avoid misleading
- * anyone as to the status of such modified files, you must delete
- * this exception notice from them.
- *
- * 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.
- */
-
-/* Written in 1994 by Aubrey Jaffer.
- * Thanks to Hallvard.Tretteberg@si.sintef.no for inspiration and discussion.
- * Rewritten by Gary Houston to be a closer interface to the C socket library.
- */
-\f
-
-#include <stdio.h>
-#include "_scm.h"
-#include "feature.h"
-
-#include "socket.h"
-
-#ifdef HAVE_STRING_H
-#include <string.h>
-#endif
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <netinet/in.h>
-#include <netdb.h>
-#include <arpa/inet.h>
-
-\f
-
-#ifndef STDC_HEADERS
-int close P ((int fd));
-#endif /* STDC_HEADERS */
-
-extern int inet_aton ();
-
-SCM_PROC (s_sys_inet_aton, "inet-aton", 1, 0, 0, scm_sys_inet_aton);
-
-SCM
-scm_sys_inet_aton (address)
- SCM address;
-{
- struct in_addr soka;
-
- SCM_ASSERT (SCM_NIMP (address) && SCM_ROSTRINGP (address), address, SCM_ARG1, s_sys_inet_aton);
- if (SCM_SUBSTRP (address))
- address = scm_makfromstr (SCM_ROCHARS (address), SCM_ROLENGTH (address), 0);
- if (inet_aton (SCM_ROCHARS (address), &soka) == 0)
- scm_syserror (s_sys_inet_aton);
- return scm_ulong2num (ntohl (soka.s_addr));
-}
-
-
-SCM_PROC (s_inet_ntoa, "inet-ntoa", 1, 0, 0, scm_inet_ntoa);
-
-SCM
-scm_inet_ntoa (inetid)
- SCM inetid;
-{
- struct in_addr addr;
- char *s;
- SCM answer;
- addr.s_addr = htonl (scm_num2ulong (inetid, (char *) SCM_ARG1, s_inet_ntoa));
- SCM_DEFER_INTS;
- s = inet_ntoa (addr);
- answer = scm_makfromstr (s, strlen (s), 0);
- SCM_ALLOW_INTS;
- return answer;
-}
-
-SCM_PROC (s_inet_netof, "inet-netof", 1, 0, 0, scm_inet_netof);
-
-SCM
-scm_inet_netof (address)
- SCM address;
-{
- struct in_addr addr;
- addr.s_addr = htonl (scm_num2ulong (address, (char *) SCM_ARG1, s_inet_netof));
- return scm_ulong2num ((unsigned long) inet_netof (addr));
-}
-
-SCM_PROC (s_lnaof, "lnaof", 1, 0, 0, scm_lnaof);
-
-SCM
-scm_lnaof (address)
- SCM address;
-{
- struct in_addr addr;
- addr.s_addr = htonl (scm_num2ulong (address, (char *) SCM_ARG1, s_lnaof));
- return scm_ulong2num ((unsigned long) inet_lnaof (addr));
-}
-
-
-SCM_PROC (s_inet_makeaddr, "inet-makeaddr", 2, 0, 0, scm_inet_makeaddr);
-
-SCM
-scm_inet_makeaddr (net, lna)
- SCM net;
- SCM lna;
-{
- struct in_addr addr;
- unsigned long netnum;
- unsigned long lnanum;
-
- netnum = scm_num2ulong (net, (char *) SCM_ARG1, s_inet_makeaddr);
- lnanum = scm_num2ulong (lna, (char *) SCM_ARG2, s_inet_makeaddr);
- addr = inet_makeaddr (netnum, lnanum);
- return scm_ulong2num (ntohl (addr.s_addr));
-}
-
-
-/* !!! Doesn't take address format.
- * Assumes hostent stream isn't reused.
- */
-
-SCM_PROC (s_sys_gethost, "gethost", 0, 1, 0, scm_sys_gethost);
-
-SCM
-scm_sys_gethost (name)
- SCM name;
-{
- SCM ans = scm_make_vector (SCM_MAKINUM (5), SCM_UNSPECIFIED, SCM_BOOL_F);
- SCM *ve = SCM_VELTS (ans);
- SCM lst = SCM_EOL;
- struct hostent *entry;
- struct in_addr inad;
- char **argv;
- int i = 0;
-#ifdef HAVE_GETHOSTENT
- if (SCM_UNBNDP (name))
- {
- SCM_DEFER_INTS;
- entry = gethostent ();
- }
- else
-#endif
- if (SCM_NIMP (name) && SCM_STRINGP (name))
- {
- SCM_DEFER_INTS;
- entry = gethostbyname (SCM_CHARS (name));
- }
- else
- {
- inad.s_addr = htonl (scm_num2ulong (name, (char *) SCM_ARG1, s_sys_gethost));
- SCM_DEFER_INTS;
- entry = gethostbyaddr ((char *) &inad, sizeof (inad), AF_INET);
- }
- SCM_ALLOW_INTS;
- if (!entry)
- scm_syserror (s_sys_gethost);
- ve[0] = scm_makfromstr (entry->h_name, (scm_sizet) strlen (entry->h_name), 0);
- ve[1] = scm_makfromstrs (-1, entry->h_aliases);
- ve[2] = SCM_MAKINUM (entry->h_addrtype + 0L);
- ve[3] = SCM_MAKINUM (entry->h_length + 0L);
- if (sizeof (struct in_addr) != entry->h_length)
- {
- ve[4] = SCM_BOOL_F;
- return ans;
- }
- for (argv = entry->h_addr_list; argv[i]; i++);
- while (i--)
- {
- inad = *(struct in_addr *) argv[i];
- lst = scm_cons (scm_ulong2num (ntohl (inad.s_addr)), lst);
- }
- ve[4] = lst;
- return ans;
-}
-
-
-SCM_PROC (s_sys_getnet, "getnet", 0, 1, 0, scm_sys_getnet);
-
-SCM
-scm_sys_getnet (name)
- SCM name;
-{
- SCM ans;
- SCM *ve;
- struct netent *entry;
-
- ans = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F);
- ve = SCM_VELTS (ans);
- if (SCM_UNBNDP (name))
- {
- SCM_DEFER_INTS;
- entry = getnetent ();
- }
- else if (SCM_NIMP (name) && SCM_STRINGP (name))
- {
- SCM_DEFER_INTS;
- entry = getnetbyname (SCM_CHARS (name));
- }
- else
- {
- unsigned long netnum;
- netnum = scm_num2ulong (name, (char *) SCM_ARG1, s_sys_getnet);
- SCM_DEFER_INTS;
- entry = getnetbyaddr (netnum, AF_INET);
- }
- SCM_ALLOW_INTS;
- if (!entry)
- scm_syserror (s_sys_getnet);
- ve[0] = scm_makfromstr (entry->n_name, (scm_sizet) strlen (entry->n_name), 0);
- ve[1] = scm_makfromstrs (-1, entry->n_aliases);
- ve[2] = SCM_MAKINUM (entry->n_addrtype + 0L);
- ve[3] = scm_ulong2num (entry->n_net + 0L);
- return ans;
-}
-
-SCM_PROC (s_sys_getproto, "getproto", 0, 1, 0, scm_sys_getproto);
-
-SCM
-scm_sys_getproto (name)
- SCM name;
-{
- SCM ans;
- SCM *ve;
- struct protoent *entry;
-
- ans = scm_make_vector (SCM_MAKINUM (3), SCM_UNSPECIFIED, SCM_BOOL_F);
- ve = SCM_VELTS (ans);
- if (SCM_UNBNDP (name))
- {
- SCM_DEFER_INTS;
- entry = getprotoent ();
- }
- else if (SCM_NIMP (name) && SCM_STRINGP (name))
- {
- SCM_DEFER_INTS;
- entry = getprotobyname (SCM_CHARS (name));
- }
- else
- {
- unsigned long protonum;
- protonum = scm_num2ulong (name, (char *) SCM_ARG1, s_sys_getproto);
- SCM_DEFER_INTS;
- entry = getprotobynumber (protonum);
- }
- SCM_ALLOW_INTS;
- if (!entry)
- scm_syserror (s_sys_getproto);
- ve[0] = scm_makfromstr (entry->p_name, (scm_sizet) strlen (entry->p_name), 0);
- ve[1] = scm_makfromstrs (-1, entry->p_aliases);
- ve[2] = SCM_MAKINUM (entry->p_proto + 0L);
- return ans;
-}
-
-
-static SCM scm_return_entry SCM_P ((struct servent *entry));
-
-static SCM
-scm_return_entry (entry)
- struct servent *entry;
-{
- SCM ans;
- SCM *ve;
-
- ans = scm_make_vector (SCM_MAKINUM (4), SCM_UNSPECIFIED, SCM_BOOL_F);
- ve = SCM_VELTS (ans);
- ve[0] = scm_makfromstr (entry->s_name, (scm_sizet) strlen (entry->s_name), 0);
- ve[1] = scm_makfromstrs (-1, entry->s_aliases);
- ve[2] = SCM_MAKINUM (ntohs (entry->s_port) + 0L);
- ve[3] = scm_makfromstr (entry->s_proto, (scm_sizet) strlen (entry->s_proto), 0);
- SCM_ALLOW_INTS;
- return ans;
-}
-
-SCM_PROC (s_sys_getserv, "getserv", 0, 2, 0, scm_sys_getserv);
-
-SCM
-scm_sys_getserv (name, proto)
- SCM name;
- SCM proto;
-{
- struct servent *entry;
- if (SCM_UNBNDP (name))
- {
- SCM_DEFER_INTS;
- entry = getservent ();
- if (!entry)
- scm_syserror (s_sys_getserv);
- return scm_return_entry (entry);
- }
- SCM_ASSERT (SCM_NIMP (proto) && SCM_STRINGP (proto), proto, SCM_ARG2, s_sys_getserv);
- if (SCM_NIMP (name) && SCM_STRINGP (name))
- {
- SCM_DEFER_INTS;
- entry = getservbyname (SCM_CHARS (name), SCM_CHARS (proto));
- }
- else
- {
- SCM_ASSERT (SCM_INUMP (name), name, SCM_ARG1, s_sys_getserv);
- SCM_DEFER_INTS;
- entry = getservbyport (SCM_INUM (name), SCM_CHARS (proto));
- }
- if (!entry)
- scm_syserror (s_sys_getserv);
- return scm_return_entry (entry);
-}
-
-SCM_PROC (s_sethost, "sethost", 0, 1, 0, scm_sethost);
-
-SCM
-scm_sethost (arg)
- SCM arg;
-{
- if (SCM_UNBNDP (arg))
- endhostent ();
- else
- sethostent (SCM_NFALSEP (arg));
- return SCM_UNSPECIFIED;
-}
-
-SCM_PROC (s_setnet, "setnet", 0, 1, 0, scm_setnet);
-
-SCM
-scm_setnet (arg)
- SCM arg;
-{
- if (SCM_UNBNDP (arg))
- endnetent ();
- else
- setnetent (SCM_NFALSEP (arg));
- return SCM_UNSPECIFIED;
-}
-
-SCM_PROC (s_setproto, "setproto", 0, 1, 0, scm_setproto);
-
-SCM
-scm_setproto (arg)
- SCM arg;
-{
- if (SCM_UNBNDP (arg))
- endprotoent ();
- else
- setprotoent (SCM_NFALSEP (arg));
- return SCM_UNSPECIFIED;
-}
-
-SCM_PROC (s_setserv, "setserv", 0, 1, 0, scm_setserv);
-
-SCM
-scm_setserv (arg)
- SCM arg;
-{
- if (SCM_UNBNDP (arg))
- endservent ();
- else
- setservent (SCM_NFALSEP (arg));
- return SCM_UNSPECIFIED;
-}
-
-
-void
-scm_init_socket ()
-{
- scm_add_feature ("socket");
-#include "socket.x"
-}
-
-
+/* Copyright (C) 1996,1997 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
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * As a special exception, the Free Software Foundation gives permission
+ * for additional uses of the text contained in its release of GUILE.
+ *
+ * The exception is that, if you link the GUILE library with other files
+ * to produce an executable, this does not by itself cause the
+ * resulting executable to be covered by the GNU General Public License.
+ * Your use of that executable is in no way restricted on account of
+ * linking the GUILE library code into it.
+ *
+ * This exception does not however invalidate any other reasons why
+ * the executable file might be covered by the GNU General Public License.
+ *
+ * This exception applies only to the code released by the
+ * Free Software Foundation under the name GUILE. If you copy
+ * code from other Free Software Foundation releases into a copy of
+ * GUILE, as the General Public License permits, the exception does
+ * not apply to the code that you add in this way. To avoid misleading
+ * anyone as to the status of such modified files, you must delete
+ * this exception notice from them.
+ *
+ * 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.
+ */
+\f
+
+#include <stdio.h>
+
+#include "_scm.h"
+#include "unif.h"
+#include "feature.h"
+#include "fports.h"
+
+#include "socket.h"
+
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <arpa/inet.h>
+
+\f
+
+static SCM scm_sock_fd_to_port SCM_P ((int fd, char *proc));
+
+static SCM
+scm_sock_fd_to_port (fd, proc)
+ int fd;
+ 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);
+ return result;
+}
+
+SCM_PROC (s_socket, "socket", 3, 0, 0, scm_socket);
+
+SCM
+scm_socket (family, style, proto)
+ SCM family;
+ SCM style;
+ SCM proto;
+{
+ 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;
+ fd = socket (SCM_INUM (family), SCM_INUM (style), SCM_INUM (proto));
+ result = scm_sock_fd_to_port (fd, s_socket);
+ SCM_ALLOW_INTS;
+ return result;
+}
+
+
+
+SCM_PROC (s_socketpair, "socketpair", 3, 0, 0, scm_socketpair);
+
+SCM
+scm_socketpair (family, style, proto)
+ SCM family;
+ SCM style;
+ SCM proto;
+{
+ 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);
+
+ fam = SCM_INUM (family);
+
+ SCM_DEFER_INTS;
+ if (socketpair (fam, SCM_INUM (style), SCM_INUM (proto), fd) == -1)
+ scm_syserror (s_socketpair);
+
+ a = scm_sock_fd_to_port (fd[0], s_socketpair);
+ b = scm_sock_fd_to_port (fd[1], s_socketpair);
+ SCM_ALLOW_INTS;
+ return scm_cons (a, b);
+}
+
+
+SCM_PROC (s_getsockopt, "getsockopt", 3, 0, 0, scm_getsockopt);
+
+SCM
+scm_getsockopt (sock, level, optname)
+ SCM sock;
+ SCM level;
+ SCM optname;
+{
+ int fd;
+ int optlen;
+#ifdef HAVE_STRUCT_LINGER
+ char optval[sizeof (struct linger)];
+#else
+ char optval[sizeof (scm_sizet)];
+#endif
+ int ilevel;
+ int ioptname;
+
+#ifdef HAVE_STRUCT_LINGER
+ optlen = (int) sizeof (struct linger);
+#else
+ 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);
+
+ fd = fileno ((FILE *)SCM_STREAM (sock));
+ ilevel = SCM_INUM (level);
+ ioptname = SCM_INUM (optname);
+ if (getsockopt (fd, ilevel, ioptname, (void *) optval, &optlen) == -1)
+ scm_syserror (s_getsockopt);
+
+#ifdef SO_LINGER
+ if (ilevel == SOL_SOCKET && ioptname == SO_LINGER)
+ {
+#ifdef HAVE_STRUCT_LINGER
+ struct linger *ling = (struct linger *) optval;
+ return scm_cons (SCM_MAKINUM (ling->l_onoff),
+ SCM_MAKINUM (ling->l_linger));
+#else
+ scm_sizet *ling = (scm_sizet *) optval;
+ return scm_cons (SCM_MAKINUM (*ling),
+ SCM_MAKINUM (0));
+#endif
+ }
+#endif
+#ifdef SO_SNDBUF
+ if (ilevel == SOL_SOCKET && ioptname == SO_SNDBUF)
+ {
+ scm_sizet *bufsize = (scm_sizet *) optval;
+ return SCM_MAKINUM (*bufsize);
+ }
+#endif
+#ifdef SO_RCVBUF
+ if (ilevel == SOL_SOCKET && ioptname == SO_RCVBUF)
+ {
+ scm_sizet *bufsize = (scm_sizet *) optval;
+ return SCM_MAKINUM (*bufsize);
+ }
+#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;
+{
+ int fd;
+ int optlen;
+#ifdef HAVE_STRUCT_LINGER
+ char optval[sizeof (struct linger)]; /* Biggest option :-( */
+#else
+ 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);
+ 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_INUMP (SCM_CAR (value))
+ && SCM_INUMP (SCM_CDR (value)),
+ value, SCM_ARG4, s_setsockopt);
+ 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_INUMP (SCM_CAR (value))
+ && SCM_INUMP (SCM_CDR (value)),
+ value, SCM_ARG4, s_setsockopt);
+ ling = SCM_INUM (SCM_CAR (value));
+ optlen = (int) sizeof (scm_sizet);
+ (*(scm_sizet *) optval) = (scm_sizet) SCM_INUM (value);
+#endif
+ }
+#endif
+#ifdef SO_SNDBUF
+ else if (ilevel == SOL_SOCKET && ioptname == SO_SNDBUF)
+ {
+ SCM_ASSERT (SCM_INUMP (value), value, SCM_ARG4, s_setsockopt);
+ optlen = (int) sizeof (scm_sizet);
+ (*(scm_sizet *) optval) = (scm_sizet) SCM_INUM (value);
+ }
+#endif
+#ifdef SO_RCVBUF
+ else if (ilevel == SOL_SOCKET && ioptname == SO_RCVBUF)
+ {
+ SCM_ASSERT (SCM_INUMP (value), value, SCM_ARG4, s_setsockopt);
+ optlen = (int) sizeof (scm_sizet);
+ (*(scm_sizet *) optval) = (scm_sizet) SCM_INUM (value);
+ }
+#endif
+ else
+ {
+ /* Most options just take an int. */
+ SCM_ASSERT (SCM_INUMP (value), value, SCM_ARG4, s_setsockopt);
+ optlen = (int) sizeof (int);
+ (*(int *) optval) = (int) SCM_INUM (value);
+ }
+ if (setsockopt (fd, ilevel, ioptname, (void *) optval, optlen) == -1)
+ scm_syserror (s_setsockopt);
+ return SCM_UNSPECIFIED;
+}
+
+SCM_PROC (s_shutdown, "shutdown", 2, 0, 0, scm_shutdown);
+
+SCM
+scm_shutdown (sock, how)
+ SCM sock;
+ SCM how;
+{
+ 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));
+ if (shutdown (fd, SCM_INUM (how)) == -1)
+ scm_syserror (s_shutdown);
+ return SCM_UNSPECIFIED;
+}
+
+/* convert fam/address/args into a sockaddr of the appropriate type.
+ args is modified by removing the arguments actually used.
+ which_arg and proc are used when reporting errors:
+ which_arg is the position of address in the original argument list.
+ proc is the name of the original procedure.
+ 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;
+{
+ switch (fam)
+ {
+ case AF_INET:
+ {
+ SCM isport;
+ struct sockaddr_in *soka;
+
+ soka = (struct sockaddr_in *)
+ scm_must_malloc (sizeof (struct sockaddr_in), proc);
+ 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,
+ which_arg + 1, proc);
+ isport = SCM_CAR (*args);
+ *args = SCM_CDR (*args);
+ SCM_ASSERT (SCM_INUMP (isport), isport, which_arg + 1, proc);
+ soka->sin_port = htons (SCM_INUM (isport));
+ *size = sizeof (struct sockaddr_in);
+ return (struct sockaddr *) soka;
+ }
+ case AF_UNIX:
+ {
+ struct sockaddr_un *soka;
+
+ soka = (struct sockaddr_un *)
+ scm_must_malloc (sizeof (struct sockaddr_un), proc);
+ soka->sun_family = AF_UNIX;
+ SCM_ASSERT (SCM_NIMP (address) && SCM_STRINGP (address), address,
+ which_arg, proc);
+ memcpy (soka->sun_path, SCM_CHARS (address), 1 + SCM_LENGTH (address));
+ *size = sizeof (struct sockaddr_un);
+ return (struct sockaddr *) soka;
+ }
+ default:
+ scm_out_of_range (proc, SCM_MAKINUM (fam));
+ }
+}
+
+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;
+{
+ 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);
+ if (connect (fd, soka, size) == -1)
+ scm_syserror (s_connect);
+ 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;
+{
+ 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));
+ rv = bind (fd, soka, size);
+ if (rv == -1)
+ scm_syserror (s_bind);
+ return SCM_UNSPECIFIED;
+}
+
+SCM_PROC (s_listen, "listen", 2, 0, 0, scm_listen);
+
+SCM
+scm_listen (sock, backlog)
+ SCM sock;
+ SCM backlog;
+{
+ 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));
+ if (listen (fd, SCM_INUM (backlog)) == -1)
+ scm_syserror (s_listen);
+ return SCM_UNSPECIFIED;
+}
+
+/* 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;
+{
+ short int fam = address->sa_family;
+ SCM result;
+ SCM *ve;
+ if (fam == AF_UNIX)
+ {
+ struct sockaddr_un *nad = (struct sockaddr_un *) address;
+ result = scm_make_vector (SCM_MAKINUM (2), SCM_UNSPECIFIED, SCM_BOOL_F);
+ ve = SCM_VELTS (result);
+ ve[0] = scm_ulong2num ((unsigned long) fam);
+ ve[1] = scm_makfromstr (nad->sun_path,
+ (scm_sizet) strlen (nad->sun_path), 0);
+ }
+ else if (fam == AF_INET)
+ {
+ struct sockaddr_in *nad = (struct sockaddr_in *) address;
+ result = scm_make_vector (SCM_MAKINUM (3), SCM_UNSPECIFIED, SCM_BOOL_F);
+ 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_listify (SCM_MAKINUM (fam), SCM_UNSPECIFIED));
+
+ return result;
+}
+
+/* Allocate a buffer large enough to hold any sockaddr type. */
+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_addr_buffer_size = (int) sizeof (struct sockaddr_un);
+ if (sizeof (struct sockaddr_in) > scm_addr_buffer_size)
+ scm_addr_buffer_size = (int) sizeof (struct sockaddr_in);
+ 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;
+{
+ int fd;
+ int newfd;
+ SCM address;
+ 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;
+ 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);
+ if (tmp_size > 0)
+ address = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, s_accept);
+ 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;
+{
+ 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;
+ tmp_size = scm_addr_buffer_size;
+ if (getsockname (fd, (struct sockaddr *) scm_addr_buffer, &tmp_size) == -1)
+ scm_syserror (s_getsockname);
+ if (tmp_size > 0)
+ result = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, s_getsockname);
+ 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;
+{
+ 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;
+ tmp_size = scm_addr_buffer_size;
+ if (getpeername (fd, (struct sockaddr *) scm_addr_buffer, &tmp_size) == -1)
+ scm_syserror (s_getpeername);
+ if (tmp_size > 0)
+ result = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, s_getpeername);
+ 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;
+{
+ 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_SYSCALL (rv = recv (fd, SCM_CHARS (buf), SCM_LENGTH (buf), flg));
+ if (rv == -1)
+ scm_syserror (s_recv);
+
+ 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;
+{
+ 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_STRINGP (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);
+
+ SCM_SYSCALL (rv = send (fd, SCM_CHARS (message), SCM_LENGTH (message), flg));
+ if (rv == -1)
+ scm_syserror (s_send);
+ 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;
+{
+ int rv;
+ int fd;
+ int flg;
+ int offset = 0;
+ int cend;
+ 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);
+ cend = SCM_LENGTH (buf);
+
+ if (SCM_UNBNDP (flags))
+ flg = 0;
+ else
+ {
+ flg = scm_num2ulong (flags, (char *) SCM_ARG3, s_recvfrom);
+
+ if (!SCM_UNBNDP (start))
+ {
+ offset = (int) scm_num2long (start,
+ (char *) SCM_ARG4, s_recvfrom);
+
+ if (offset < 0 || offset >= cend)
+ scm_out_of_range (s_recvfrom, start);
+
+ if (!SCM_UNBNDP (end))
+ {
+ int tend = (int) scm_num2long (end,
+ (char *) SCM_ARG5, s_recvfrom);
+
+ if (tend <= offset || tend > cend)
+ scm_out_of_range (s_recvfrom, end);
+
+ cend = tend;
+ }
+ }
+ }
+
+ fd = fileno ((FILE *)SCM_STREAM (sock));
+
+ tmp_size = scm_addr_buffer_size;
+ SCM_SYSCALL (rv = recvfrom (fd, SCM_CHARS (buf) + offset,
+ cend - offset, flg,
+ (struct sockaddr *) scm_addr_buffer,
+ &tmp_size));
+ if (rv == -1)
+ scm_syserror (s_recvfrom);
+ if (tmp_size > 0)
+ address = scm_addr_vector ((struct sockaddr *) scm_addr_buffer, s_recvfrom);
+ 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;
+{
+ int rv;
+ int fd;
+ int flg;
+ struct sockaddr *soka;
+ scm_sizet size;
+
+ SCM_ASSERT (SCM_NIMP (sock) && SCM_FPORTP (sock), sock, SCM_ARG1, s_sendto);
+ SCM_ASSERT (SCM_NIMP (message) && SCM_STRINGP (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;
+ soka = scm_fill_sockaddr (SCM_INUM (fam), address, &args_and_flags, 4,
+ s_sendto, &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_SYSCALL (rv = sendto (fd, SCM_CHARS (message), SCM_LENGTH (message), flg,
+ soka, size));
+ if (rv == -1)
+ scm_syserror (s_sendto);
+ scm_must_free ((char *) soka);
+ SCM_ALLOW_INTS;
+ return SCM_MAKINUM (rv);
+}
+\f
+
+
+void
+scm_init_socket ()
+{
+ /* protocol families. */
+#ifdef AF_UNSPEC
+ scm_sysintern ("AF_UNSPEC", SCM_MAKINUM (AF_UNSPEC));
+#endif
+#ifdef AF_UNIX
+ scm_sysintern ("AF_UNIX", SCM_MAKINUM (AF_UNIX));
+#endif
+#ifdef AF_INET
+ scm_sysintern ("AF_INET", SCM_MAKINUM (AF_INET));
+#endif
+
+#ifdef PF_UNSPEC
+ scm_sysintern ("PF_UNSPEC", SCM_MAKINUM (PF_UNSPEC));
+#endif
+#ifdef PF_UNIX
+ scm_sysintern ("PF_UNIX", SCM_MAKINUM (PF_UNIX));
+#endif
+#ifdef PF_INET
+ scm_sysintern ("PF_INET", SCM_MAKINUM (PF_INET));
+#endif
+
+ /* socket types. */
+#ifdef SOCK_STREAM
+ scm_sysintern ("SOCK_STREAM", SCM_MAKINUM (SOCK_STREAM));
+#endif
+#ifdef SOCK_DGRAM
+ scm_sysintern ("SOCK_DGRAM", SCM_MAKINUM (SOCK_DGRAM));
+#endif
+#ifdef SOCK_RAW
+ scm_sysintern ("SOCK_RAW", SCM_MAKINUM (SOCK_RAW));
+#endif
+
+ /* setsockopt level. */
+#ifdef SOL_SOCKET
+ scm_sysintern ("SOL_SOCKET", SCM_MAKINUM (SOL_SOCKET));
+#endif
+#ifdef SOL_IP
+ scm_sysintern ("SOL_IP", SCM_MAKINUM (SOL_IP));
+#endif
+#ifdef SOL_TCP
+ scm_sysintern ("SOL_TCP", SCM_MAKINUM (SOL_TCP));
+#endif
+#ifdef SOL_UDP
+ scm_sysintern ("SOL_UDP", SCM_MAKINUM (SOL_UDP));
+#endif
+
+ /* setsockopt names. */
+#ifdef SO_DEBUG
+ scm_sysintern ("SO_DEBUG", SCM_MAKINUM (SO_DEBUG));
+#endif
+#ifdef SO_REUSEADDR
+ scm_sysintern ("SO_REUSEADDR", SCM_MAKINUM (SO_REUSEADDR));
+#endif
+#ifdef SO_STYLE
+ scm_sysintern ("SO_STYLE", SCM_MAKINUM (SO_STYLE));
+#endif
+#ifdef SO_TYPE
+ scm_sysintern ("SO_TYPE", SCM_MAKINUM (SO_TYPE));
+#endif
+#ifdef SO_ERROR
+ scm_sysintern ("SO_ERROR", SCM_MAKINUM (SO_ERROR));
+#endif
+#ifdef SO_DONTROUTE
+ scm_sysintern ("SO_DONTROUTE", SCM_MAKINUM (SO_DONTROUTE));
+#endif
+#ifdef SO_BROADCAST
+ scm_sysintern ("SO_BROADCAST", SCM_MAKINUM (SO_BROADCAST));
+#endif
+#ifdef SO_SNDBUF
+ scm_sysintern ("SO_SNDBUF", SCM_MAKINUM (SO_SNDBUF));
+#endif
+#ifdef SO_RCVBUF
+ scm_sysintern ("SO_RCVBUF", SCM_MAKINUM (SO_RCVBUF));
+#endif
+#ifdef SO_KEEPALIVE
+ scm_sysintern ("SO_KEEPALIVE", SCM_MAKINUM (SO_KEEPALIVE));
+#endif
+#ifdef SO_OOBINLINE
+ scm_sysintern ("SO_OOBINLINE", SCM_MAKINUM (SO_OOBINLINE));
+#endif
+#ifdef SO_NO_CHECK
+ scm_sysintern ("SO_NO_CHECK", SCM_MAKINUM (SO_NO_CHECK));
+#endif
+#ifdef SO_PRIORITY
+ scm_sysintern ("SO_PRIORITY", SCM_MAKINUM (SO_PRIORITY));
+#endif
+#ifdef SO_LINGER
+ scm_sysintern ("SO_LINGER", SCM_MAKINUM (SO_LINGER));
+#endif
+
+ /* recv/send options. */
+#ifdef MSG_OOB
+ scm_sysintern ("MSG_OOB", SCM_MAKINUM (MSG_OOB));
+#endif
+#ifdef MSG_PEEK
+ scm_sysintern ("MSG_PEEK", SCM_MAKINUM (MSG_PEEK));
+#endif
+#ifdef MSG_DONTROUTE
+ scm_sysintern ("MSG_DONTROUTE", SCM_MAKINUM (MSG_DONTROUTE));
+#endif
+
+ scm_add_feature ("socket");
+ scm_init_addr_buffer ();
+
+#include "socket.x"
+}
+
HCoop / bpt / guile.git / blobdiff