--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dcclib/get_id.c	Tue Mar 10 13:49:58 2009 +0100
@@ -0,0 +1,98 @@
+/* Distributed Checksum Clearinghouse
+ *
+ * convert an ID to binary
+ *
+ * Copyright (c) 2008 by Rhyolite Software, LLC
+ *
+ * This agreement is not applicable to any entity which sells anti-spam
+ * solutions to others or provides an anti-spam solution as part of a
+ * security solution sold to other entities, or to a private network
+ * which employs the DCC or uses data provided by operation of the DCC
+ * but does not provide corresponding data to other users.
+ *
+ * Permission to use, copy, modify, and distribute this software without
+ * changes for any purpose with or without fee is hereby granted, provided
+ * that the above copyright notice and this permission notice appear in all
+ * copies and any distributed versions or copies are either unchanged
+ * or not called anything similar to "DCC" or "Distributed Checksum
+ * Clearinghouse".
+ *
+ * Parties not eligible to receive a license under this agreement can
+ * obtain a commercial license to use DCC by contacting Rhyolite Software
+ * at sales@rhyolite.com.
+ *
+ * A commercial license would be for Distributed Checksum and Reputation
+ * Clearinghouse software.  That software includes additional features.  This
+ * free license for Distributed ChecksumClearinghouse Software does not in any
+ * way grant permision to use Distributed Checksum and Reputation Clearinghouse
+ * software
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND RHYOLITE SOFTWARE, LLC DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL RHYOLITE SOFTWARE, LLC
+ * BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ *
+ * Rhyolite Software DCC 1.3.103-1.18 $Revision$
+ */
+
+#include "dcc_defs.h"
+#include "dcc_xhdr.h"
+
+
+/* get client or server-ID */
+DCC_CLNT_ID				/* ID or DCC_ID_INVALID */
+dcc_get_id(DCC_EMSG emsg, const char *id_str,
+	   const char *fnm, int lno)
+{
+	char *p;
+	unsigned long id;
+	DCC_FNM_LNO_BUF fnm_buf;
+
+	id_str += strspn(id_str, DCC_WHITESPACE);
+	id = strtoul(id_str, &p, 10);
+	if (*p != '\0'
+	    || (id != DCC_ID_ANON
+		&& (id < DCC_SRVR_ID_MIN || id > DCC_CLNT_ID_MAX))) {
+		if (!strcasecmp(id_str, DCC_XHDR_ID_ANON))
+			return DCC_ID_ANON;
+
+		dcc_pemsg(EX_DATAERR, emsg, "invalid ID \"%s\"%s",
+			  id_str, fnm_lno(&fnm_buf, fnm, lno));
+		return DCC_ID_INVALID;
+	}
+
+	return id;
+}
+
+
+
+/* get server-ID */
+const char *				/* rest of string */
+dcc_get_srvr_id(DCC_EMSG emsg,
+		DCC_SRVR_ID *result,	/* ID or DCC_ID_INVALID */
+		const char *id_str, const char *dlims,
+		const char *fnm, int lno)
+{
+	char *p;
+	unsigned long id;
+	DCC_FNM_LNO_BUF fnm_buf;
+
+	if (!dlims)
+		dlims = "";
+	id = strtoul(id_str, &p, 10);
+	if (p == id_str
+	    || (*p && !strchr(dlims, *p))
+	    || (id < DCC_SRVR_ID_MIN || id > DCC_SRVR_ID_MAX)) {
+		dcc_pemsg(EX_DATAERR, emsg, "invalid server-ID \"%s\"%s",
+			  id_str, fnm_lno(&fnm_buf, fnm, lno));
+		*result = DCC_ID_INVALID;
+		return 0;
+	}
+
+	*result = id;
+	return p;
+}