libbb: smaller and faster decode_base64()

function                                             old     new   delta
decode_base64                                        195     180     -15

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 0 insertions, 37 deletions

diff --git a/networking/httpd.c b/networking/httpd.c
index 961f8cab4..4ffd89c48 100644
--- a/networking/httpd.c
+++ b/networking/httpd.c
@@ -1017,46 +1017,9 @@ static char *encodeString(const char *string)
  */
 static void decodeBase64(char *Data)
 {
-# if ENABLE_BASE64 || ENABLE_UUDECODE
-        /* Call decode_base64() from uuencode.c */
         char *eptr = Data;
         decode_base64(&eptr, Data);
         *eptr = '\0';
-# else
-        const unsigned char *in = (const unsigned char *)Data;
-        /* The decoded size will be at most 3/4 the size of the encoded */
-        unsigned ch = 0;
-        int i = 0;
-
-        while (*in) {
-                int t = *in++;
-
-                if (t >= '0' && t <= '9')
-                        t = t - '0' + 52;
-                else if (t >= 'A' && t <= 'Z')
-                        t = t - 'A';
-                else if (t >= 'a' && t <= 'z')
-                        t = t - 'a' + 26;
-                else if (t == '+')
-                        t = 62;
-                else if (t == '/')
-                        t = 63;
-                else if (t == '=')
-                        t = 0;
-                else
-                        continue;
-
-                ch = (ch << 6) | t;
-                i++;
-                if (i == 4) {
-                        *Data++ = (char) (ch >> 16);
-                        *Data++ = (char) (ch >> 8);
-                        *Data++ = (char) ch;
-                        i = 0;
-                }
-        }
-        *Data = '\0';
-# endif
 }
 #endif