X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/disorder/blobdiff_plain/14ad73b94d56fb8558eabfef431c34e12de00478..ec57f6c97b41d54ade912f7e3b9f727b40e38e16:/lib/basen.c

diff --git a/lib/basen.c b/lib/basen.c
index c5644b4..87d2795 100644
--- a/lib/basen.c
+++ b/lib/basen.c
@@ -1,21 +1,19 @@
 /*
  * This file is part of DisOrder.
- * Copyright (C) 2005 Richard Kettlewell
+ * Copyright (C) 2005, 2007, 2008 Richard Kettlewell
  *
- * This program is free software; you can redistribute it and/or modify
+ * This program 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 of the License, or
+ * 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.
- *
+ * 
+ * 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 /** @file lib/basen.c @brief Arbitrary base conversion 
  *
@@ -24,10 +22,7 @@
  * words.  The words themselves use the native byte order.
  */
 
-#include <config.h>
-#include "types.h"
-
-#include <string.h>
+#include "common.h"
 
 #include "basen.h"
 
@@ -72,7 +67,7 @@ static unsigned divide(unsigned long *v, int nwords, unsigned long m) {
 }
 
 /** @brief Convert v to a chosen base
- * @param v Pointer to bigendian bignum
+ * @param v Pointer to bigendian bignum (modified!)
  * @param nwords Length of bignum
  * @param buffer Output buffer
  * @param bufsize Size of output buffer
@@ -91,7 +86,8 @@ int basen(unsigned long *v,
   static const char chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
   
   do {
-    if(i <= 1) return -1;	/* overflow */
+    if(i <= 1)
+      return -1;			/* overflow */
     buffer[--i] = chars[divide(v, nwords, base)];
   } while(!zero(v, nwords));
   memmove(buffer, buffer + i, bufsize - i);