adding zephyr-im master branch

lib/ZRecvNot.c

@@ -0,0 +1,52 @@
+/* This file is part of the Project Athena Zephyr Notification System.
+ * It contains source for ZReceiveNotice function.
+ *
+ *	Created by:	Robert French
+ *
+ *	$Id$
+ *
+ *	Copyright (c) 1987,1988 by the Massachusetts Institute of Technology.
+ *	For copying and distribution information, see the file
+ *	"mit-copyright.h". 
+ */
+
+#ifndef lint
+static const char rcsid_ZReceiveNotice_c[] = "$Id$";
+#endif
+
+#include <internal.h>
+
+Code_t
+ZReceiveNotice(ZNotice_t *notice,
+	       struct sockaddr_in *from)
+{
+    char *buffer;
+    struct _Z_InputQ *nextq;
+    int len, auth;
+    Code_t retval;
+
+    if ((retval = Z_WaitForComplete()) != ZERR_NONE)
+	return (retval);
+
+    nextq = Z_GetFirstComplete();
+    if (!nextq)
+      return (ENOMEM);
+
+    len = nextq->packet_len;
+    
+    if (!(buffer = (char *) malloc((unsigned) len)))
+	return (ENOMEM);
+
+    if (from)
+	*from = nextq->from;
+    
+    (void) memcpy(buffer, nextq->packet, len);
+
+    auth = nextq->auth;
+    Z_RemQueue(nextq);
+    
+    if ((retval = ZParseNotice(buffer, len, notice)) != ZERR_NONE)
+	return (retval);
+    notice->z_checked_auth = auth;
+    return ZERR_NONE;
+}