Revision: 1891
http://complement.svn.sourceforge.net/complement/?rev=1891&view=rev
Author: complement
Date: 2008-06-07 10:06:27 -0700 (Sat, 07 Jun 2008)
Log Message:
-----------
base64 encode/decode
Added Paths:
-----------
trunk/complement/explore/app/utils/base64/
trunk/complement/explore/app/utils/base64/Makefile
trunk/complement/explore/app/utils/base64/Makefile.inc
trunk/complement/explore/app/utils/base64/base64.cc
Property changes on: trunk/complement/explore/app/utils/base64
___________________________________________________________________
Name: svn:ignore
+ obj
Added: trunk/complement/explore/app/utils/base64/Makefile
===================================================================
--- trunk/complement/explore/app/utils/base64/Makefile (rev 0)
+++ trunk/complement/explore/app/utils/base64/Makefile 2008-06-07 17:06:27 UTC (rev 1891)
@@ -0,0 +1,10 @@
+# -*- Makefile -*- Time-stamp: <07/07/05 09:31:15 ptr>
+
+SRCROOT := ../../..
+
+include Makefile.inc
+include ${SRCROOT}/Makefiles/gmake/top.mak
+
+# INCLUDES += -I${BOOST_DIR}
+
+LDFLAGS += -Wl,-rpath=${STLPORT_LIB_DIR}
Added: trunk/complement/explore/app/utils/base64/Makefile.inc
===================================================================
--- trunk/complement/explore/app/utils/base64/Makefile.inc (rev 0)
+++ trunk/complement/explore/app/utils/base64/Makefile.inc 2008-06-07 17:06:27 UTC (rev 1891)
@@ -0,0 +1,4 @@
+# -*- makefile -*- Time-stamp: <02/07/14 14:03:13 ptr>
+
+PRGNAME = base64
+SRC_CC = base64.cc
Added: trunk/complement/explore/app/utils/base64/base64.cc
===================================================================
--- trunk/complement/explore/app/utils/base64/base64.cc (rev 0)
+++ trunk/complement/explore/app/utils/base64/base64.cc 2008-06-07 17:06:27 UTC (rev 1891)
@@ -0,0 +1,71 @@
+
+#include <iostream>
+
+using namespace std;
+
+unsigned char a64[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+const char cd64[]="|$$$}rstuvwxyz{$$$$$$$>?@ABCDEFGHIJKLMNOPQRSTUVW$$$$$$XYZ[\\]^_`abcdefghijklmnopq";
+
+// void decode( istream )
+// {
+// }
+
+void decodeblock( unsigned char in[4], unsigned char out[3] )
+{
+ out[ 0 ] = (unsigned char ) (in[0] << 2 | in[1] >> 4);
+ out[ 1 ] = (unsigned char ) (in[1] << 4 | in[2] >> 2);
+ out[ 2 ] = (unsigned char ) (((in[2] << 6) & 0xc0) | in[3]);
+}
+
+#if 1
+void decode( istream& is, ostream& os )
+{
+ unsigned char in[4], out[3], v;
+ int len;
+
+ while( !is.eof() ) {
+ len = 0;
+ for( int i = 0; i < 4 && !is.eof(); i++ ) {
+ v = 0;
+ while( !is.eof() && v == 0 ) {
+ is >> v;
+ v = (unsigned char) ((v < 43 || v > 122) ? 0 : cd64[ v - 43 ]);
+ if ( v ) {
+ v = (unsigned char) ((v == '$') ? 0 : v - 61);
+ }
+ }
+ if( !is.eof() ) {
+ len++;
+ if ( v ) {
+ in[ i ] = (unsigned char) (v - 1);
+ }
+ } else {
+ in[i] = 0;
+ }
+ }
+ if ( len ) {
+ decodeblock( in, out );
+ for ( int i = 0; i < len - 1; i++ ) {
+ os << out[i];
+ }
+ }
+ }
+}
+#else
+void decode( istream& is, ostream& os )
+{
+ unsigned char in[4], out[3], v;
+ while( !is.eof() ) {
+ is >> in[0] >> in[1] >> in[2] >> in[3];
+ decodeblock( in, out );
+ os << out[0] << out[1] << out[2];
+ }
+}
+#endif
+
+int main()
+{
+ decode( cin, cout );
+
+ return 0;
+}
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