1 files changed, 86 insertions, 0 deletions
diff --git a/c/src/libnetworking/pppd/magic.c b/c/src/libnetworking/pppd/magic.c
new file mode 100644
index 0000000000..67d6b6ca90
--- /dev/null
+++ b/c/src/libnetworking/pppd/magic.c
@@ -0,0 +1,86 @@
+/*
+ * magic.c - PPP Magic Number routines.
+ *
+ * Copyright (c) 1989 Carnegie Mellon University.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by Carnegie Mellon University.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef lint
+/* static char rcsid[] = "$Id$"; */
+#endif
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/time.h>
+
+#include "pppd.h"
+#include "magic.h"
+
+extern long mrand48 __P((void));
+extern void srand48 __P((long));
+
+/*
+ * magic_init - Initialize the magic number generator.
+ *
+ * Attempts to compute a random number seed which will not repeat.
+ * The current method uses the current hostid, current process ID
+ * and current time, currently.
+ */
+void
+magic_init()
+{
+    long seed;
+    struct timeval t;
+
+    gettimeofday(&t, NULL);
+    seed = get_host_seed() ^ t.tv_sec ^ t.tv_usec ^ getpid();
+    srand48(seed);
+}
+
+/*
+ * magic - Returns the next magic number.
+ */
+u_int32_t
+magic()
+{
+    return (u_int32_t) mrand48();
+}
+
+/*
+ * Substitute procedures for those systems which don't have
+ * drand48 et al.
+ */
+/* #include <stdlib.h> */
+double
+drand48()
+{
+    return (double)rand() / (double)0x7fffffffL; /* 2**31-1 */
+}
+
+long
+mrand48()
+{
+    return rand();
+}
+
+void
+srand48(seedval)
+long seedval;
+{
+    srand((int)seedval);
+}
+