X-Git-Url: https://git.hcoop.net/hcoop/debian/exim4.git/blobdiff_plain/ed7df6aed3350267779da0674e270711e5914e79..d1d56ac364669b9a323ad9494f96398ba502dac0:/src/auths/b64decode.c

diff --git a/src/auths/b64decode.c b/src/auths/b64decode.c
deleted file mode 100644
index 0a3c2ec..0000000
--- a/src/auths/b64decode.c
+++ /dev/null
@@ -1,84 +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"
-
-
-/*************************************************
-*          Decode byte-string in base 64         *
-*************************************************/
-
-/* This function decodes a string in base 64 format as defined in RFC 2045
-(MIME) and required by the SMTP AUTH extension (RFC 2554). The decoding
-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:
-  code        points to the coded string, zero-terminated
-  ptr         where to put the pointer to the result, which is in
-              dynamic store, and zero-terminated
-
-Returns:      the number of bytes in the result,
-              or -1 if the input was malformed
-
-A zero is added on to the end to make it easy in cases where the result is to
-be interpreted as text. This is not included in the count. */
-
-static uschar dec64table[] = {
-  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, /*  0-15 */
-  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, /* 16-31 */
-  255,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63, /* 32-47 */
-   52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255,255,255,255, /* 48-63 */
-  255,  0,  1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, /* 64-79 */
-   15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255, /* 80-95 */
-  255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, /* 96-111 */
-   41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255  /* 112-127*/
-};
-
-int
-auth_b64decode(uschar *code, uschar **ptr)
-{
-register int x, y;
-uschar *result = store_get(3*(Ustrlen(code)/4) + 1);
-
-*ptr = result;
-
-/* Each cycle of the loop handles a quantum of 4 input bytes. For the last
-quantum this may decode to 1, 2, or 3 output bytes. */
-
-while ((x = (*code++)) != 0)
-  {
-  if (x > 127 || (x = dec64table[x]) == 255) return -1;
-  if ((y = (*code++)) == 0 || (y = dec64table[y]) == 255)
-    return -1;
-  *result++ = (x << 2) | (y >> 4);
-
-  if ((x = (*code++)) == '=')
-    {
-    if (*code++ != '=' || *code != 0) return -1;
-    }
-  else
-    {
-    if (x > 127 || (x = dec64table[x]) == 255) return -1;
-    *result++ = (y << 4) | (x >> 2);
-    if ((y = (*code++)) == '=')
-      {
-      if (*code != 0) return -1;
-      }
-    else
-      {
-      if (y > 127 || (y = dec64table[y]) == 255) return -1;
-      *result++ = (x << 6) | y;
-      }
-    }
-  }
-
-*result = 0;
-return result - *ptr;
-}
-
-/* End of b64decode.c */