Use SSH more safely from configure

[oweals/gnunet.git] / src / util / common_endian.c

diff --git a/src/util/common_endian.c b/src/util/common_endian.c
index 223144c40c0fabfa7dbed29d03437d070725998a..45707f4ef70f14f8d4abb1df0fd6602b642438cf 100644 (file)
--- a/src/util/common_endian.c
+++ b/src/util/common_endian.c
@@ -1,10 +1,10 @@
 /*
      This file is part of GNUnet.
-     (C) 2001, 2002, 2003, 2004, 2006 Christian Grothoff (and other contributing authors)
+     Copyright (C) 2001, 2002, 2003, 2004, 2006, 2012 Christian Grothoff (and other contributing authors)
 
      GNUnet 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 2, or (at your
+     by the Free Software Foundation; either version 3, or (at your
      option) any later version.
 
      GNUnet is distributed in the hope that it will be useful, but
@@ -14,39 +14,83 @@
 
      You should have received a copy of the GNU General Public License
      along with GNUnet; see the file COPYING.  If not, write to the
-     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-     Boston, MA 02111-1307, USA.
+     Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+     Boston, MA 02110-1301, USA.
 */
 
 /**
  * @file util/common_endian.c
  * @brief endian conversion helpers
  * @author Christian Grothoff
+ * @author Gabor X Toth
  */
 
 #include "platform.h"
-#include "gnunet_common.h"
+#include "gnunet_crypto_lib.h"
 
-unsigned long long
-GNUNET_ntohll (unsigned long long n)
+#define LOG(kind,...) GNUNET_log_from (kind, "util",__VA_ARGS__)
+
+
+uint64_t
+GNUNET_htonll (uint64_t n)
 {
 #if __BYTE_ORDER == __BIG_ENDIAN
   return n;
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+  return (((uint64_t) htonl (n)) << 32) + htonl (n >> 32);
 #else
-  return (((unsigned long long) ntohl (n)) << 32) + ntohl (n >> 32);
+  #error byteorder undefined
 #endif
 }
 
-unsigned long long
-GNUNET_htonll (unsigned long long n)
+
+uint64_t
+GNUNET_ntohll (uint64_t n)
 {
 #if __BYTE_ORDER == __BIG_ENDIAN
   return n;
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+  return (((uint64_t) ntohl (n)) << 32) + ntohl (n >> 32);
 #else
-  return (((unsigned long long) htonl (n)) << 32) + htonl (n >> 32);
+  #error byteorder undefined
 #endif
 }
 
 
+/**
+ * Convert double to network-byte-order.
+ * @param d the value in network byte order
+ * @return the same value in host byte order
+ */
+double
+GNUNET_hton_double (double d)
+{
+  double res;
+  uint64_t *in = (uint64_t *) &d;
+  uint64_t *out = (uint64_t *) &res;
+
+  out[0] = GNUNET_htonll(in[0]);
+
+  return res;
+}
+
+
+/**
+ * Convert double to host-byte-order
+ * @param d the value in network byte order
+ * @return the same value in host byte order
+ */
+double
+GNUNET_ntoh_double (double d)
+{
+  double res;
+  uint64_t *in = (uint64_t *) &d;
+  uint64_t *out = (uint64_t *) &res;
+
+  out[0] = GNUNET_ntohll(in[0]);
+
+  return res;
+}
+
 
 /* end of common_endian.c */