X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=ipif%2Futils.c;h=1a4d30c17ebca805ed75466c180b172603e0612d;hb=2cbcd670c5dfcda374720737fa5a5cd0be93e338;hp=c215390af059863d29c5eae4bdf2a61ff3067720;hpb=f9e59051127e72847e1bee84ad52670e875f7d2f;p=userv-utils.git

diff --git a/ipif/utils.c b/ipif/utils.c
index c215390..1a4d30c 100644
--- a/ipif/utils.c
+++ b/ipif/utils.c
@@ -1,4 +1,25 @@
 /*
+ * General utility functions for udp tunnel
+ */
+/*
+ * Copyright 1996-2013 Ian Jackson <ijackson@chiark.greenend.org.uk>
+ * Copyright 1998 David Damerell <damerell@chiark.greenend.org.uk>
+ * Copyright 1999,2003
+ *    Chancellor Masters and Scholars of the University of Cambridge
+ * Copyright 2010 Tony Finch <fanf@dotat.at>
+ *
+ * This 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with userv-utils; if not, see http://www.gnu.org/licenses/.
  */
 
 #include <string.h>
@@ -81,22 +102,6 @@ void read_must(int fd, void *p_in, int sz, const char *what) {
   }
 }
 
-void get_random(void *ptr, size_t sz) {
-  static FILE *randfile;
-
-  size_t r;
-
-  if (!randfile) {
-    randfile= fopen("/dev/urandom","rb");
-    if (!randfile && errno==ENOENT) randfile= fopen("/dev/random","rb");
-    if (!randfile) sysfail("open random number generator");
-  }
-
-  r= fread(ptr,1,sz,randfile);
-  if (r == sz) return;
-  (ferror(randfile) ? sysfail : fail)("cannot read random number generator");
-}
-
 const char *getarg_string(void) {
   const char *arg;