WL#2835: Base64 mysys functions

mysys/Makefile.am:
  Added Base64 to mysys
ndb/config/type_ndbapi.mk.am:
  NDBAPI now dependent on mysys
ndb/config/type_util.mk.am:
  NDB UTIL now dependent on mysys
ndb/src/common/util/Makefile.am:
  Remove Base64
ndb/src/common/util/Parser.cpp:
  Removed dead code
ndb/src/mgmapi/mgmapi.cpp:
  Use of mysys Base64
ndb/src/mgmsrv/Services.cpp:
  Use of mysys Base64
include/base64.h:
  Making Base64 mysys-style
mysys/base64.c:
  Making Base64 mysys-compatible

ndb/include/util/Base64.hpp → include/base64.h

@@ -14,15 +14,38 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
-#ifndef __BASE64_HPP_INCLUDED__
-#define __BASE64_HPP_INCLUDED__
+#ifndef __BASE64_H_INCLUDED__
+#define __BASE64_H_INCLUDED__
 
-#include <UtilBuffer.hpp>
-#include <BaseString.hpp>
+#ifdef __cplusplus
+extern "C" {
+#endif
 
-int base64_encode(const UtilBuffer &src, BaseString &dst);
-int base64_encode(const void * s, size_t src_len, BaseString &dst);
-int base64_decode(const BaseString &src, UtilBuffer &dst);
-int base64_decode(const char * s, size_t len, UtilBuffer &dst);
 
-#endif /* !__BASE64_HPP_INCLUDED__ */
+#include <mysys_priv.h>
+
+/*
+  Calculate how much memory needed for dst of base64_encode()
+*/
+int base64_needed_encoded_length(int length_of_data);
+
+/*
+  Calculate how much memory needed for dst of base64_decode()
+*/
+int base64_needed_decoded_length(int length_of_encoded_data);
+
+/*
+  Encode data as a base64 string
+*/
+int base64_encode(const void *src, size_t src_len, char *dst);
+
+/*
+  Decode a base64 string into data
+*/
+int base64_decode(const char *src, size_t src_len, void *dst);
+
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !__BASE64_H_INCLUDED__ */

mysys/Makefile.am

@@ -55,7 +55,7 @@ libmysys_a_SOURCES =    my_init.c my_getwd.c mf_getdate.c my_mmap.c \
 			charset.c charset-def.c my_bitmap.c my_bit.c md5.c \
 			my_gethostbyname.c rijndael.c my_aes.c sha1.c \
 			my_handler.c my_netware.c my_largepage.c \
-			my_windac.c my_access.c
+			my_windac.c my_access.c base64.c
 EXTRA_DIST =		thr_alarm.c thr_lock.c my_pthread.c my_thr_init.c \
 			thr_mutex.c thr_rwlock.c
 libmysys_a_LIBADD =	@THREAD_LOBJECTS@
@@ -116,5 +116,10 @@ test_gethwaddr$(EXEEXT): my_gethwaddr.c $(LIBRARIES)
 	$(LINK) $(FLAGS) -DMAIN  ./test_gethwaddr.c $(LDADD) $(LIBS)
 	$(RM) -f ./test_gethwaddr.c
 
+test_base64$(EXEEXT): base64.c $(LIBRARIES)
+	$(CP) $(srcdir)/base64.c ./test_base64.c
+	$(LINK) $(FLAGS) -DMAIN  ./test_base64.c $(LDADD) $(LIBS)
+	$(RM) -f ./test_base64.c
+
 # Don't update the files from bitkeeper
 %::SCCS/s.%

mysys/base64.c

+/* Copyright (C) 2003 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#include <base64.h>
+#include <m_string.h>  // strchr()
+
+#ifndef MAIN
+
+static char base64_table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                             "abcdefghijklmnopqrstuvwxyz"
+                             "0123456789+/";
+
+
+int
+base64_needed_encoded_length(int length_of_data)
+{
+  return ceil(length_of_data * 4 / 3) /* base64 chars */ +
+    ceil(length_of_data / (76 * 3 / 4)) /* Newlines */ +
+    3 /* Padding */;
+}
+
+
+int
+base64_needed_decoded_length(int length_of_encoded_data)
+{
+  return ceil(length_of_encoded_data * 3 / 4);
+}
+
+
+/*
+  Encode a data as base64.
+
+  Note: We require that dst is pre-allocated to correct size.
+        See base64_needed_encoded_length().
+*/
+
+int
+base64_encode(const void *src, size_t src_len, char *dst)
+{
+  const unsigned char *s= (const unsigned char*)src;
+  size_t i= 0;
+  size_t len= 0;
+
+  for (; i < src_len; len += 4)
+  {
+    if (len == 76)
+    {
+      len= 0;
+      *dst++= '\n';
+    }
+
+    unsigned c;
+    c= s[i++];
+    c <<= 8;
+
+    if (i < src_len)
+      c += s[i];
+    c <<= 8;
+    i++;
+
+    if (i < src_len)
+      c += s[i];
+    i++;
+
+    *dst++= base64_table[(c >> 18) & 0x3f];
+    *dst++= base64_table[(c >> 12) & 0x3f];
+
+    if (i > (src_len + 1))
+      *dst++= '=';
+    else
+      *dst++= base64_table[(c >> 6) & 0x3f];
+
+    if (i > src_len)
+      *dst++= '=';
+    else
+      *dst++= base64_table[(c >> 0) & 0x3f];
+  }
+
+  return 0;
+}
+
+
+static inline unsigned
+pos(unsigned char c)
+{
+  return strchr(base64_table, c) - base64_table;
+}
+
+
+#define SKIP_SPACE(src, i, size)                                \
+{                                                               \
+  while (i < size && my_isspace(default_charset_info, * src))   \
+  {                                                             \
+    i++;                                                        \
+    src++;                                                      \
+  }                                                             \
+  if (i == size)                                                \
+  {                                                             \
+    i= size + 1;                                                \
+    break;                                                      \
+  }                                                             \
+}
+
+
+/*
+  Decode a base64 string
+
+  Note: We require that dst is pre-allocated to correct size.
+        See base64_needed_decoded_length().
+
+  RETURN  Number of bytes produced in dst or -1 in case of failure
+*/
+int
+base64_decode(const char *src, size_t size, void *dst)
+{
+  char b[3];
+  size_t i= 0;
+  void *d= dst;
+  size_t j;
+
+  while (i < size)
+  {
+    unsigned c= 0;
+    size_t mark= 0;
+
+    SKIP_SPACE(src, i, size);
+
+    c += pos(*src++);
+    c <<= 6;
+    i++;
+
+    SKIP_SPACE(src, i, size);
+
+    c += pos(*src++);
+    c <<= 6;
+    i++;
+
+    SKIP_SPACE(src, i, size);
+
+    if (* src != '=')
+      c += pos(*src++);
+    else
+    {
+      i= size;
+      mark= 2;
+      c <<= 6;
+      goto end;
+    }
+    c <<= 6;
+    i++;
+
+    SKIP_SPACE(src, i, size);
+
+    if (*src != '=')
+      c += pos(*src++);
+    else
+    {
+      i= size;
+      mark= 1;
+      goto end;
+    }
+    i++;
+
+  end:
+    b[0]= (c >> 16) & 0xff;
+    b[1]= (c >>  8) & 0xff;
+    b[2]= (c >>  0) & 0xff;
+
+    for (j=0; j<3-mark; j++)
+      *(char *)d++= b[j];
+  }
+
+  if (i != size)
+  {
+    return -1;
+  }
+  return d - dst;
+}
+
+
+#else /* MAIN */
+
+#define require(b) { \
+  if (!(b)) { \
+    printf("Require failed at %s:%d\n", __FILE__, __LINE__); \
+    abort(); \
+  } \
+}
+
+
+int
+main(void)
+{
+  int i;
+  size_t j;
+  size_t k, l;
+  size_t dst_len;
+
+  for (i= 0; i < 500; i++)
+  {
+    /* Create source data */
+    const size_t src_len= rand() % 1000 + 1;
+
+    char * src= (char *) malloc(src_len);
+    char * s= src;
+
+    for (j= 0; j<src_len; j++)
+    {
+      char c= rand();
+      *s++= c;
+    }
+
+    /* Encode */
+    char * str= (char *) malloc(base64_needed_encoded_length(src_len));
+    require(base64_encode(src, src_len, str) == 0);
+
+    /* Decode */
+    char * dst= (char *) malloc(base64_needed_decoded_length(strlen(str)));
+    dst_len= base64_decode(str, strlen(str), dst);
+    require(dst_len == src_len);
+
+    if (memcmp(src, dst, src_len) != 0)
+    {
+      printf("       --------- src ---------   --------- dst ---------\n");
+      for (k= 0; k<src_len; k+=8)
+      {
+        printf("%.4x   ", (uint) k);
+        for (l=0; l<8 && k+l<src_len; l++)
+        {
+          unsigned char c= src[k+l];
+          printf("%.2x ", (unsigned)c);
+        }
+
+        printf("  ");
+
+        for (l=0; l<8 && k+l<dst_len; l++)
+        {
+          unsigned char c= dst[k+l];
+          printf("%.2x ", (unsigned)c);
+        }
+        printf("\n");
+      }
+      printf("src length: %.8x, dst length: %.8x\n",
+             (uint) src_len, (uint) dst_len);
+      require(0);
+    }
+  }
+  printf("Test succeeded.\n");
+  return 0;
+}
+
+#endif

ndb/config/type_ndbapi.mk.am

 
 INCLUDES += \
-        -I$(srcdir) -I$(top_srcdir)/include -I$(top_srcdir)/ndb/include \
+        -I$(srcdir) -I$(top_srcdir)/include \
+	-I$(top_srcdir)/mysys \
+	-I$(top_srcdir)/ndb/include \
 	-I$(top_srcdir)/ndb/include/kernel \
 	-I$(top_srcdir)/ndb/include/transporter \
 	-I$(top_srcdir)/ndb/include/debugger \

ndb/config/type_util.mk.am

 
-INCLUDES += -I$(srcdir) -I$(top_srcdir)/include \
+INCLUDES += -I$(srcdir) \
+	-I$(top_srcdir)/include \
+	-I$(top_srcdir)/mysys \
 	-I$(top_srcdir)/ndb/include \
         -I$(top_srcdir)/ndb/include/util \
         -I$(top_srcdir)/ndb/include/portlib \
         -I$(top_srcdir)/ndb/include/logger
+
+LDADD += \
+         $(top_builddir)/mysys/libmysys.a

ndb/src/common/util/Base64.cpp

-/* Copyright (C) 2003 MySQL AB
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
-
-#include <ndb_global.h>
-#include <Base64.hpp>
-
-static char base64_table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-                             "abcdefghijklmnopqrstuvwxyz"
-                             "0123456789+/";
-
-int
-base64_encode(const UtilBuffer &src, BaseString &dst) 
-{
-  return base64_encode(src.get_data(), src.length(), dst);
-}
-
-int
-base64_encode(const void * _s, size_t src_len, BaseString &dst) {
-  const unsigned char * s = (const unsigned char*)_s;
-  size_t i = 0;
-  size_t len = 0;
-  while(i < src_len) {
-    if(len == 76){
-      len = 0;
-      dst.append('\n');
-    }
-    
-    unsigned c;
-    c = s[i++];
-    c <<= 8;
-
-    if(i < src_len)
-      c += s[i];
-    c <<= 8;
-    i++;
-    
-    if(i < src_len)
-      c += s[i];
-    i++;
-    
-    dst.append(base64_table[(c >> 18) & 0x3f]);
-    dst.append(base64_table[(c >> 12) & 0x3f]);
-
-    if(i > (src_len + 1))
-      dst.append('=');
-    else
-      dst.append(base64_table[(c >> 6) & 0x3f]);
-
-    if(i > src_len)
-      dst.append('=');
-    else
-      dst.append(base64_table[(c >> 0) & 0x3f]);
-
-    len += 4;
-  }
-  return 0;
-}
-
-static inline unsigned
-pos(unsigned char c) {
-  return strchr(base64_table, c) - base64_table;
-}
-
-
-int
-base64_decode(const BaseString &src, UtilBuffer &dst) {
-  return base64_decode(src.c_str(), src.length(), dst);
-}
-
-#define SKIP_SPACE(src, i, size){     \
-  while(i < size && isspace(* src)){  \
-    i++;                              \
-    src++;                            \
-  }                                   \
-  if(i == size){                      \
-    i = size + 1;                     \
-    break;                            \
-  }                                   \
-}
-
-int
-base64_decode(const char * src, size_t size, UtilBuffer &dst) {
-  size_t i = 0;
-  while(i < size){
-    unsigned c = 0;
-    int mark = 0;
-
-    SKIP_SPACE(src, i, size);
-    
-    c += pos(*src++);
-    c <<= 6;
-    i++;
-
-    SKIP_SPACE(src, i, size);
-
-    c += pos(*src++);
-    c <<= 6;
-    i++;
-
-    SKIP_SPACE(src, i, size);
-
-    if(* src != '=')
-      c += pos(*src++);
-    else {
-      i = size;
-      mark = 2;
-      c <<= 6;
-      goto end;
-    }
-    c <<= 6;
-    i++;
-
-    SKIP_SPACE(src, i, size);
-
-    if(*src != '=')
-      c += pos(*src++);
-    else {
-      i = size;
-      mark = 1;
-      goto end;
-    }
-    i++;
-
-  end:
-    char b[3];
-    b[0] = (c >> 16) & 0xff;
-    b[1] = (c >>  8) & 0xff;
-    b[2] = (c >>  0) & 0xff;
-    
-    dst.append((void *)b, 3-mark);
-  }
-  
-  if(i != size){
-    abort();
-    return -1;
-  }
-  return 0;
-}
-
-#ifdef __TEST__B64
-/**
- * USER_FLAGS="-D__TEST__B64" make Base64.o && g++ Base64.o BaseString.o
- */
-inline
-void
-require(bool b){
-  if(!b)
-    abort();
-}
-
-int
-main(void){
-  for(int i = 0; i < 500; i++){
-    const size_t len = rand() % 10000 + 1;
-    UtilBuffer src;
-    for(size_t j = 0; j<len; j++){
-      char c = rand();
-      src.append(&c, 1);
-    }
-    require(src.length() == len);
-
-    BaseString str;
-    require(base64_encode(src, str) == 0);
-
-    if(str.length() == 3850){
-      printf(">%s<\n", str.c_str());
-    }
-
-    UtilBuffer dst;
-    require(base64_decode(str, dst) == 0);
-    require(dst.length() == src.length());
-
-    const char * c_src = (char*)src.get_data();
-    const char * c_dst = (char*)dst.get_data();
-    if(memcmp(src.get_data(), dst.get_data(), src.length()) != 0){
-      printf("-- src --\n");
-      for(int i2 = 0; i2<len; i2++){
-	unsigned char c = c_src[i2];
-	printf("%.2x ", (unsigned)c);
-	if((i2 % 8) == 7)
-	  printf("\n");
-      }
-      printf("\n");
-
-      printf("-- dst --\n");
-      for(int i2 = 0; i2<len; i2++){
-	unsigned char c = c_dst[i2];
-	printf("%.2x ", (unsigned)c);
-	if((i2 % 8) == 7)
-	  printf("\n");
-      }
-      printf("\n");
-      abort();
-    }
-  }
-  return 0;
-}
-
-#endif

ndb/src/common/util/Makefile.am

@@ -5,7 +5,7 @@ libgeneral_la_SOURCES = \
 	    File.cpp md5_hash.cpp Properties.cpp socket_io.cpp \
             SimpleProperties.cpp Parser.cpp InputStream.cpp \
             SocketServer.cpp SocketClient.cpp SocketAuthenticator.cpp\
-	    OutputStream.cpp NdbOut.cpp BaseString.cpp Base64.cpp \
+	    OutputStream.cpp NdbOut.cpp BaseString.cpp \
 	    NdbSqlUtil.cpp new.cpp \
             uucode.c random.c version.c \
             strdup.c \

ndb/src/common/util/Parser.cpp

@@ -20,7 +20,6 @@
 #include "Parser.hpp"
 #include <NdbOut.hpp>
 #include <Properties.hpp>
-#include <Base64.hpp>
 
 #undef DEBUG
 #define DEBUG(x) ndbout << x << endl;
@@ -316,11 +315,7 @@ ParserImpl::parseArg(Context * ctx,
   }
 
   case DummyRow::Properties: {
-    Properties *sp = new Properties();
-    BaseString v(value);
-    UtilBuffer b;
-    base64_decode(v, b);
-    sp->unpack((const Uint32 *)b.get_data(), b.length());
+    abort();
     break;
   }
   default:

ndb/src/mgmapi/mgmapi.cpp

@@ -34,8 +34,8 @@
 #include <Parser.hpp>
 #include <OutputStream.hpp>
 #include <InputStream.hpp>
-#include <Base64.hpp>
 
+#include <base64.h>
 
 #define MGM_CMD(name, fun, desc) \
  { name, \
@@ -1770,11 +1770,15 @@ ndb_mgm_get_configuration(NdbMgmHandle handle, unsigned int version) {
     } while(start < len);
     if(buf64 == 0)
       break;
-    
+
+    void *tmp_data = malloc(base64_needed_decoded_length((size_t) (len - 1)));
+    const int res = base64_decode(buf64, len-1, tmp_data);
+    delete[] buf64;
     UtilBuffer tmp;
-    const int res = base64_decode(buf64, len-1, tmp);
-    delete[] buf64; 
-    if(res != 0){
+    tmp.append((void *) tmp_data, res);
+    free(tmp_data);
+    if (res < 0)
+    {
       fprintf(handle->errstream, "Failed to decode buffer\n");
       break;
     }

ndb/src/mgmsrv/Services.cpp

@@ -25,7 +25,6 @@
 #include <signaldata/SetLogLevelOrd.hpp>
 #include <LogLevel.hpp>
 #include <BaseString.hpp>
-#include <Base64.hpp>
 
 #include <ConfigValues.hpp>
 #include <mgmapi_configuration.hpp>
@@ -33,6 +32,8 @@
 #include "Services.hpp"
 #include "../mgmapi/ndb_logevent.hpp"
 
+#include <base64.h>
+
 extern bool g_StopServer;
 
 static const unsigned int MAX_READ_TIMEOUT = 1000 ;
@@ -598,17 +599,18 @@ MgmApiSession::getConfig_common(Parser_t::Context &,
   cfg->pack(src);
   NdbMutex_Unlock(m_mgmsrv.m_configMutex);
   
-  BaseString str;
-  int res = base64_encode(src, str);
+  char *tmp_str = (char *) malloc(base64_needed_encoded_length(src.length()));
+  int res = base64_encode(src.get_data(), src.length(), tmp_str);
   
   m_output->println("get config reply");
   m_output->println("result: Ok");
-  m_output->println("Content-Length: %d", str.length());
+  m_output->println("Content-Length: %d", strlen(tmp_str));
   m_output->println("Content-Type: ndbconfig/octet-stream");
   m_output->println("Content-Transfer-Encoding: base64");
   m_output->println("");
-  m_output->println(str.c_str());
+  m_output->println(tmp_str);
 
+  free(tmp_str);
   return;
 }