blockchain_export can now export to a blocks.dat format

Also make the number of blocks endian independant, and add
support for testnet

src/blocks/CMakeLists.txt

@@ -30,9 +30,9 @@ if(APPLE)
     add_library(blocks STATIC blockexports.c)
     set_target_properties(blocks PROPERTIES LINKER_LANGUAGE C)
 else()
-	add_custom_command(OUTPUT blocks.o COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ld -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/blocks.o blocks.dat)
-    add_library(blocks STATIC blocks.o blockexports.c)
+    add_custom_command(OUTPUT blocks.o COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ld -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/blocks.o blocks.dat)
+    add_custom_command(OUTPUT testnet_blocks.o COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && ld -r -b binary -o ${CMAKE_CURRENT_BINARY_DIR}/testnet_blocks.o testnet_blocks.dat)
+    add_library(blocks STATIC blocks.o testnet_blocks.o blockexports.c)
     set_target_properties(blocks PROPERTIES LINKER_LANGUAGE C)
 endif()
 
-

src/blocks/blockexports.c

@@ -9,16 +9,22 @@ extern const struct mach_header _mh_execute_header;
 extern const struct mach_header_64 _mh_execute_header;
 #endif
 
-const unsigned char *get_blocks_dat_start()
+const unsigned char *get_blocks_dat_start(int testnet)
 {
     size_t size;
-    return getsectiondata(&_mh_execute_header, "__DATA", "__blocks_dat", &size);
+    if (testnet)
+        return getsectiondata(&_mh_execute_header, "__DATA", "__testnet_blocks_dat", &size);
+    else
+        return getsectiondata(&_mh_execute_header, "__DATA", "__blocks_dat", &size);
 }
 
-size_t get_blocks_dat_size()
+size_t get_blocks_dat_size(int testnet)
 {
     size_t size;
-    getsectiondata(&_mh_execute_header, "__DATA", "__blocks_dat", &size);
+    if (testnet)
+        getsectiondata(&_mh_execute_header, "__DATA", "__testnet_blocks_dat", &size);
+    else
+        getsectiondata(&_mh_execute_header, "__DATA", "__blocks_dat", &size);
     return size;
 }
 
@@ -27,22 +33,34 @@ size_t get_blocks_dat_size()
 #if defined(_WIN32) && !defined(_WIN64)
 #define _binary_blocks_start binary_blocks_dat_start
 #define _binary_blocks_end binary_blocks_dat_end
+#define _binary_testnet_blocks_start binary_testnet_blocks_dat_start
+#define _binary_testnet_blocks_end binary_testnet_blocks_dat_end
 #else
 #define _binary_blocks_start _binary_blocks_dat_start
 #define _binary_blocks_end _binary_blocks_dat_end
+#define _binary_testnet_blocks_start _binary_testnet_blocks_dat_start
+#define _binary_testnet_blocks_end _binary_testnet_blocks_dat_end
 #endif
 
 extern const unsigned char _binary_blocks_start[];
 extern const unsigned char _binary_blocks_end[];
+extern const unsigned char _binary_testnet_blocks_start[];
+extern const unsigned char _binary_testnet_blocks_end[];
 
-const unsigned char *get_blocks_dat_start(void)
+const unsigned char *get_blocks_dat_start(int testnet)
 {
-	return _binary_blocks_start;
+	if (testnet)
+		return _binary_testnet_blocks_start;
+	else
+		return _binary_blocks_start;
 }
 
-size_t get_blocks_dat_size(void)
+size_t get_blocks_dat_size(int testnet)
 {
-	return (size_t) (_binary_blocks_end - _binary_blocks_start);
+	if (testnet)
+		return (size_t) (_binary_testnet_blocks_end - _binary_testnet_blocks_start);
+	else
+		return (size_t) (_binary_blocks_end - _binary_blocks_start);
 }
 
 #endif

src/blocks/blocks.h

@@ -5,8 +5,8 @@
 extern "C" {
 #endif
 
-const unsigned char *get_blocks_dat_start();
-size_t get_blocks_dat_size();
+const unsigned char *get_blocks_dat_start(int testnet);
+size_t get_blocks_dat_size(int testnet);
 
 #ifdef __cplusplus
 }