Identify user function (using ident protocol) - untested or compiled at this point.

src/sbbs3/ident.c

+/* ident.c */
+
+/* Synchronet Indentification (RFC1413) functions */
+
+/* $Id$ */
+
+/****************************************************************************
+ * @format.tab-size 4		(Plain Text/Source Code File Header)			*
+ * @format.use-tabs true	(see http://www.synchro.net/ptsc_hdr.html)		*
+ *																			*
+ * Copyright 2000 Rob Swindell - http://www.synchro.net/copyright.html		*
+ *																			*
+ * 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			*
+ * of the License, or (at your option) any later version.					*
+ * See the GNU General Public License for more details: gpl.txt or			*
+ * http://www.fsf.org/copyleft/gpl.html										*
+ *																			*
+ * Anonymous FTP access to the most recent released source is available at	*
+ * ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net	*
+ *																			*
+ * Anonymous CVS access to the development source and modification history	*
+ * is available at cvs.synchro.net:/cvsroot/sbbs, example:					*
+ * cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs login			*
+ *     (just hit return, no password is necessary)							*
+ * cvs -d :pserver:anonymous@cvs.synchro.net:/cvsroot/sbbs checkout src		*
+ *																			*
+ * For Synchronet coding style and modification guidelines, see				*
+ * http://www.synchro.net/source.html										*
+ *																			*
+ * You are encouraged to submit any modifications (preferably in Unix diff	*
+ * format) via e-mail to mods@synchro.net									*
+ *																			*
+ * Note: If this box doesn't appear square, then you need to fix your tabs.	*
+ ****************************************************************************/
+
+#include "sbbs.h"
+#include "ident.h"
+
+char *identify(SOCKADDR_IN* client_addr, u_short local_port, char* buf, size_t maxlen)
+{
+	char		req[128];
+	char*		identity=NULL;
+	SOCKET		sock=INVALID_SOCKET;
+	SOCKADDR_IN	addr;
+
+	do {
+		if((sock = open_socket(SOCK_STREAM)) == INVALID_SOCKET) {
+			sprintf(buf,"ERROR %d creating socket",ERROR_VALUE);
+			break;
+		}
+
+		addr=*client_addr;
+		addr.sin_port=113;	/* per RFC1413 */
+
+		if(connect(sock, &addr, sizeof(addr)!=0) {
+			sprintf(buf,"ERROR %d connecting to server",ERROR_VALUE);
+			break;
+		}
+
+		sprintf(req,"%u, %u\r\n", client_adr.sin_port, local_port);
+		if(send(sock,req,strlen(req),0)!=strlen(req)) {
+			sprintf(buf,"ERROR %d sending request",ERROR_VALUE);
+			break;
+		}
+
+		if(recv(sock,buf,maxlen,0)<1) {
+			sprintf(buf,"ERROR %d receving response",ERROR_VALUE);
+			break;
+		}
+		identity=buf;
+	} while(0);
+
+	close_socket(sock);
+
+	return(identity);
+}
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