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/*!A cross-platform build utility based on Lua
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Copyright (C) 2015-present, TBOOX Open Source Group.
*
* @author ruki
* @file bin2c.c
*
*/
/* //////////////////////////////////////////////////////////////////////////////////////
* trace
*/
#define TB_TRACE_MODULE_NAME "bin2c"
#define TB_TRACE_MODULE_DEBUG (0)
/* //////////////////////////////////////////////////////////////////////////////////////
* includes
*/
#include "prefix.h"
/* //////////////////////////////////////////////////////////////////////////////////////
* private implementation
*/
static __tb_inline__ tb_size_t xm_utils_bin2c_hex2str(tb_char_t str[5], tb_byte_t value)
{
static tb_char_t const* digits_table = "0123456789ABCDEF";
str[0] = ' ';
str[1] = '0';
str[2] = 'x';
str[3] = digits_table[(value >> 4) & 15];
str[4] = digits_table[value & 15];
return 5;
}
static tb_bool_t xm_utils_bin2c_dump(tb_stream_ref_t istream, tb_stream_ref_t ostream, tb_int_t linewidth, tb_bool_t nozeroend)
{
tb_bool_t first = tb_true;
tb_hong_t i = 0;
tb_hong_t left = 0;
tb_char_t line[4096];
tb_byte_t data[512];
tb_size_t linesize = 0;
tb_size_t need = 0;
tb_assert_and_check_return_val(linewidth < sizeof(data), tb_false);
while (!tb_stream_beof(istream))
{
linesize = 0;
left = tb_stream_left(istream);
need = (tb_size_t)tb_min(left, linewidth);
if (need)
{
if (!tb_stream_bread(istream, data, need))
break;
if (!nozeroend && tb_stream_beof(istream))
{
tb_assert_and_check_break(need + 1 < sizeof(data));
data[need++] = '\0';
}
tb_assert_and_check_break(linesize + 6 * need < sizeof(line));
i = 0;
if (first)
{
first = tb_false;
line[linesize++] = ' ';
}
else line[linesize++] = ',';
linesize += xm_utils_bin2c_hex2str(line + linesize, data[i]);
for (i = 1; i < need; i++)
{
line[linesize++] = ',';
linesize += xm_utils_bin2c_hex2str(line + linesize, data[i]);
}
tb_assert_and_check_break(i == need && linesize && linesize < sizeof(line));
if (tb_stream_bwrit_line(ostream, line, linesize) < 0)
break;
}
}
return tb_stream_beof(istream);
}
/* //////////////////////////////////////////////////////////////////////////////////////
* implementation
*/
/* generate c/c++ code from the binary file
*
* local ok, errors = utils.bin2c(binaryfile, outputfile, linewidth, nozeroend)
*/
tb_int_t xm_utils_bin2c(lua_State* lua)
{
// check
tb_assert_and_check_return_val(lua, 0);
// get the binaryfile
tb_char_t const* binaryfile = luaL_checkstring(lua, 1);
tb_check_return_val(binaryfile, 0);
// get the outputfile
tb_char_t const* outputfile = luaL_checkstring(lua, 2);
tb_check_return_val(outputfile, 0);
// get line width
tb_int_t linewidth = (tb_int_t)lua_tointeger(lua, 3);
// no zero end?
tb_bool_t nozeroend = (tb_bool_t)lua_toboolean(lua, 4);
// do dump
tb_bool_t ok = tb_false;
tb_stream_ref_t istream = tb_stream_init_from_file(binaryfile, TB_FILE_MODE_RO);
tb_stream_ref_t ostream = tb_stream_init_from_file(outputfile, TB_FILE_MODE_RW | TB_FILE_MODE_CREAT | TB_FILE_MODE_TRUNC);
do
{
if (!tb_stream_open(istream))
{
lua_pushboolean(lua, tb_false);
lua_pushfstring(lua, "bin2c: open %s failed", binaryfile);
break;
}
if (!tb_stream_open(ostream))
{
lua_pushboolean(lua, tb_false);
lua_pushfstring(lua, "bin2c: open %s failed", outputfile);
break;
}
if (!xm_utils_bin2c_dump(istream, ostream, linewidth, nozeroend))
{
lua_pushboolean(lua, tb_false);
lua_pushfstring(lua, "bin2c: dump data failed");
break;
}
ok = tb_true;
lua_pushboolean(lua, ok);
} while (0);
if (istream) tb_stream_clos(istream);
istream = tb_null;
if (ostream) tb_stream_clos(ostream);
ostream = tb_null;
return ok? 1 : 2;
}
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