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authorNicolas "Pixel" Noble <pixel@nobis-crew.org>2008-11-05 00:08:23 +0100
committerNicolas "Pixel" Noble <pixel@nobis-crew.org>2008-11-05 00:08:23 +0100
commit52283ef0ea74c927be29c31ebe9e21ee5d27c739 (patch)
tree0fca8ebbc45a61f73ec14adac16e6ccd17850775 /lib
parent97f9cb5573f03fa25786b9213a740e875d3b771a (diff)
Adding base64 lookup table.
Diffstat (limited to 'lib')
-rw-r--r--lib/Base64.cc22
1 files changed, 20 insertions, 2 deletions
diff --git a/lib/Base64.cc b/lib/Base64.cc
index af328dc..bb18edc 100644
--- a/lib/Base64.cc
+++ b/lib/Base64.cc
@@ -20,6 +20,25 @@
#include <Base64.h>
static char cb64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+static char lookup[] = {
+// x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 0x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 1x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 62, 0, 0, 0, 63, // 2x
+ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 0, 0, 0, 0, 0, 0, // 3x
+ 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, // 4x
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 0, 0, 0, 0, 0, // 5x
+ 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, // 6x
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 0, 0, 0, 0, 0, // 7x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 8x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 9x
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Ax
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Bx
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Cx
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Dx
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Ex
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // Fx
+};
String Base64::encode_block(unsigned char in_tab[3], int len) {
char r[5];
@@ -61,8 +80,7 @@ String Base64::encode(const char * data, int stream_size) {
}
int Base64::stri(char x) {
- char * p = strchr(cb64, x);
- return ((x == '=') || (p == 0)) ? -1 : (p - cb64);
+ return lookup[(unsigned char) x];
}
int Base64::decode_block(char s1, char s2, char s3, char s4, unsigned char * out_tab) {