Initial import of mopd-2.5.3. -moj

1 files changed, 178 insertions, 0 deletions

diff --git a/usr.sbin/mopd/otherOS/loop.c b/usr.sbin/mopd/otherOS/loop.c
new file mode 100644
index 00000000000..656f6681065
--- /dev/null
+++ b/usr.sbin/mopd/otherOS/loop.c
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 1993-95 Mats O Jansson.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Mats O Jansson.
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef LINT
+static char rcsid[] = "$Id: loop.c,v 1.1 1996/09/21 13:49:17 maja Exp $";
+#endif
+
+#include "os.h"
+#include "common/common.h"
+#include "common/mopdef.h"
+
+/*
+ * The list of all interfaces that are being listened to.  loop()
+ * "selects" on the descriptors in this list.
+ */
+struct if_info *iflist;
+u_char	buf[BUFSIZE];
+
+void   mopProcess   (/* struct if_info *, u_char * */);
+
+int
+mopOpenRC(p, trans)
+	struct if_info *p;
+	int	trans;
+{
+#ifndef NORC
+	int	fd;
+
+	fd = (*(p->iopen))(p->if_name,
+			   O_RDWR,
+			   MOP_K_PROTO_RC,
+			   trans);
+	if (fd >= 0) {
+		pfAddMulti(fd, p->if_name, rc_mcst);
+		pfEthAddr(fd, p->eaddr);
+	}
+
+	return fd;
+#else
+	return -1;
+#endif
+}
+
+int
+mopOpenDL(p, trans)
+	struct if_info *p;
+	int	trans;
+{
+#ifndef NODL
+	int	fd;
+
+	fd = (*(p->iopen))(p->if_name,
+			   O_RDWR,
+			   MOP_K_PROTO_DL,
+			   trans);
+	if (fd >= 0) {
+		pfAddMulti(fd, p->if_name, dl_mcst);
+		pfEthAddr(fd, p->eaddr);
+	}
+
+	return fd;
+#else
+	return -1;
+#endif
+}
+
+void
+mopReadRC(p, fd)
+	struct if_info *p;
+	int	fd;
+{
+	int cc;
+
+	if ((cc = pfRead(fd, buf+HDRSIZ, BUFSIZE-HDRSIZ)) < 0) {
+		return;
+	}
+
+	if (cc == 0)
+		return;
+
+	mopProcess(p, buf+HDRSIZ);
+
+	return;
+}
+
+void
+mopReadDL(p, fd)
+	struct if_info *p;
+	int	fd;
+{
+	int cc;
+
+	if ((cc = pfRead(fd, buf+HDRSIZ, BUFSIZE-HDRSIZ)) < 0) {
+		return;
+	}
+
+	if (cc == 0)
+		return;
+
+	mopProcess(p, buf+HDRSIZ);
+
+	return;
+}
+
+/*
+ * Loop indefinitely listening for MOP requests on the
+ * interfaces in 'iflist'.
+ */
+void
+Loop()
+{
+	fd_set  fds, listeners;
+	int     maxfd = 0;
+	struct if_info *ii;
+
+	if (iflist == 0) {
+		fprintf(stderr,"no interfaces");
+		exit(0);
+	}
+	
+	/*
+         * Find the highest numbered file descriptor for select().
+         * Initialize the set of descriptors to listen to.
+         */
+	FD_ZERO(&fds);
+	for (ii = iflist; ii; ii = ii->next) {
+		if (ii->fd != -1) {
+			FD_SET(ii->fd, &fds);
+			if (ii->fd > maxfd)
+				maxfd = ii->fd;
+	        }
+	}
+	while (1) {
+		listeners = fds;
+		if (select(maxfd + 1, &listeners, (struct fd_set *) 0,
+			(struct fd_set *) 0, (struct timeval *) 0) < 0) {
+			fprintf(stderr, "select: %s");
+			exit(0);
+		}
+		for (ii = iflist; ii; ii = ii->next) {
+			if (ii->fd != -1) {
+				if (FD_ISSET(ii->fd, &listeners))
+					(*(ii->read))(ii,ii->fd);
+			}
+		}
+	}
+}
+
+
+
+
+