X-Git-Url: http://git.madism.org/?p=apps%2Fmadmutt.git;a=blobdiff_plain;f=base64.c;h=df55689ded9e882a6987c7b6cefb2adfc5adb7c5;hp=0bcc865d6ba336bff69d58fdb77476d826c3f7e2;hb=81884ccb464c69a8dba9de1b97af261a8a02b2c7;hpb=6833ce8bdca2d64e14485118f2a4417b7e1cb1b1

diff --git a/base64.c b/base64.c
index 0bcc865..df55689 100644
--- a/base64.c
+++ b/base64.c
@@ -13,8 +13,8 @@
  * 
  *     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, USA.
+ *     Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *     Boston, MA 02110-1301, USA.
  * 
  */
 
@@ -39,29 +39,29 @@
  * 
  */
 
+#if HAVE_CONFIG_H
+# include "config.h"
+#endif
+
 #include "mutt.h"
 #include "mime.h"
 
-#define BAD     -1
-
 /* raw bytes to null-terminated base 64 string */
 void mutt_to_base64 (unsigned char *out, const unsigned char *in, size_t len,
-		     size_t olen)
+                     size_t olen)
 {
-  while (len >= 3 && olen > 10)
-  {
+  while (len >= 3 && olen > 10) {
     *out++ = B64Chars[in[0] >> 2];
     *out++ = B64Chars[((in[0] << 4) & 0x30) | (in[1] >> 4)];
     *out++ = B64Chars[((in[1] << 2) & 0x3c) | (in[2] >> 6)];
     *out++ = B64Chars[in[2] & 0x3f];
-    olen  -= 4;
-    len   -= 3;
-    in    += 3;
+    olen -= 4;
+    len -= 3;
+    in += 3;
   }
 
   /* clean up remainder */
-  if (len > 0 && olen > 4)
-  {
+  if (len > 0 && olen > 4) {
     unsigned char fragment;
 
     *out++ = B64Chars[in[0] >> 2];
@@ -82,37 +82,33 @@ int mutt_from_base64 (char *out, const char *in)
   int len = 0;
   register unsigned char digit1, digit2, digit3, digit4;
 
-  do
-  {
+  do {
     digit1 = in[0];
-    if (digit1 > 127 || base64val (digit1) == BAD)
+    if (base64val(digit1) < 0)
       return -1;
     digit2 = in[1];
-    if (digit2 > 127 || base64val (digit2) == BAD)
+    if (base64val(digit2) < 0)
       return -1;
     digit3 = in[2];
-    if (digit3 > 127 || ((digit3 != '=') && (base64val (digit3) == BAD)))
+    if (digit3 != '=' && base64val(digit3) < 0)
       return -1;
     digit4 = in[3];
-    if (digit4 > 127 || ((digit4 != '=') && (base64val (digit4) == BAD)))
+    if (digit4 != '=' && base64val(digit4) < 0)
       return -1;
     in += 4;
 
     /* digits are already sanity-checked */
     *out++ = (base64val(digit1) << 2) | (base64val(digit2) >> 4);
     len++;
-    if (digit3 != '=')
-    {
+    if (digit3 != '=') {
       *out++ = ((base64val(digit2) << 4) & 0xf0) | (base64val(digit3) >> 2);
       len++;
-      if (digit4 != '=')
-      {
-	*out++ = ((base64val(digit3) << 6) & 0xc0) | base64val(digit4);
-	len++;
+      if (digit4 != '=') {
+        *out++ = ((base64val(digit3) << 6) & 0xc0) | base64val(digit4);
+        len++;
       }
     }
-  }
-  while (*in && digit4 != '=');
+  } while (*in && digit4 != '=');
 
   return len;
 }