Import Debian changes 4.89-2+deb9u4

[hcoop/debian/exim4.git] / src / auths / b64encode.c

diff --git a/src/auths/b64encode.c b/src/auths/b64encode.c
deleted file mode 100644 (file)
index 509590c..0000000
--- a/src/auths/b64encode.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/*************************************************
-*     Exim - an Internet mail transport agent    *
-*************************************************/
-
-/* Copyright (c) University of Cambridge 1995 - 2009 */
-/* See the file NOTICE for conditions of use and distribution. */
-
-#include "../exim.h"
-
-
-/*************************************************
-*          Encode byte-string in base 64         *
-*************************************************/
-
-/* This function encodes a string of bytes, containing any values whatsoever,
-in base 64 as defined in RFC 2045 (MIME) and required by the SMTP AUTH
-extension (RFC 2554). The encoding algorithm is written out in a
-straightforward way. Turning it into some kind of compact loop is messy and
-would probably run more slowly.
-
-Arguments:
-  clear       points to the clear text bytes
-  len         the number of bytes to encode
-
-Returns:      a pointer to the zero-terminated base 64 string, which
-              is in working store
-*/
-
-static uschar *enc64table =
-  US"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-
-uschar *
-auth_b64encode(uschar *clear, int len)
-{
-uschar *code = store_get(4*((len+2)/3) + 1);
-uschar *p = code;
-
-while (len-- >0)
-  {
-  register int x, y;
-
-  x = *clear++;
-  *p++ = enc64table[(x >> 2) & 63];
-
-  if (len-- <= 0)
-    {
-    *p++ = enc64table[(x << 4) & 63];
-    *p++ = '=';
-    *p++ = '=';
-    break;
-    }
-
-  y = *clear++;
-  *p++ = enc64table[((x << 4) | ((y >> 4) & 15)) & 63];
-
-  if (len-- <= 0)
-    {
-    *p++ = enc64table[(y << 2) & 63];
-    *p++ = '=';
-    break;
-    }
-
-  x = *clear++;
-  *p++ = enc64table[((y << 2) | ((x >> 6) & 3)) & 63];
-
-  *p++ = enc64table[x & 63];
-  }
-
-*p = 0;
-
-return code;
-}
-
-/* End of b64encode.c */