153 lines
2.9 KiB
C
Executable File
153 lines
2.9 KiB
C
Executable File
/*
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* (C) Copyright 2007-2011
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Tom Cubie <tangliang@allwinnertech.com>
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*
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* Enviroment partition generator for Allwinner A10 platform.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <string.h>
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#include <config.h>
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#include <environment.h>
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extern uint32_t crc32 (uint32_t, const unsigned char *, uint);
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int main(int argc, char * argv[])
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{
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int fin, fout;
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int i, j,ret,count= 0,flag=0;
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char tmp[ENV_SIZE];
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env_t env;
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size_t len = 0;
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if(argc != 3) {
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printf("This program generate the u-boot env partition from config file\n");
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printf("Usage: %s input_config_file out_put_bin_file\n", argv[0]);
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return 0;
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}
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fin = open(argv[1], O_RDONLY);
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fout = open(argv[2], O_RDWR | O_CREAT | O_TRUNC, S_IRWXU | S_IRGRP | S_IROTH);
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if(fin < 0) {
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printf("%s ", argv[1]);
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perror("open error");
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return -1;
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}
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if(fout < 0) {
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printf("%s ", argv[2]);
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perror("can not create file");
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return -1;
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}
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/* take the file size */
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len = lseek(fin, 0, SEEK_END);
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lseek(fin, 0, SEEK_SET);
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if( read(fin, env.data, len) < 0 ) {
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printf("read failed");
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return -1;
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}
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for (i=0;i<len;i++){
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if(env.data[i] == '#'){
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flag=1;
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}
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if(env.data[i] == '\n'){
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flag=0;
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}
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if(flag == 0 ){
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tmp[count++]=env.data[i];
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}
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}
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memset(env.data,0,len);
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#ifdef DEBUG
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printf("len: %d\n", len);
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#endif
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/*
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if(len > ENV_SIZE)
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{
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printf("Warning: %s length is larger than CONFIG_ENV_SIZE\n", argv[1]);
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len = ENV_SIZE;
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}
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lseek(fin, 0, SEEK_SET);
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if( read(fin, env.data, len) < 0 ) {
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printf("read failed");
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return -1;
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}
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*/
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#ifdef DEBUG
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printf("buf:\n%s\n", env.data);
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#endif
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for(i = 0,j = 0; i < ENV_SIZE; i++ ,j++) {
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if(tmp[i] == '\n'){
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env.data[j] = '\0';
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}
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else env.data[j] =tmp[i] ;
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if ((tmp[i] == '\n') && (tmp[i-1] == '\n'))
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{
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j--;
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}
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}
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env.crc = crc32(0, env.data, ENV_SIZE);
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#ifdef DEBUG
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printf("env.crc:%x\n", env.crc);
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#endif
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ret = write(fout, &env, CONFIG_ENV_SIZE);
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if(ret < 1) {
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printf("Write error, create env image failed\n");
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}
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close(fin);
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close(fout);
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return 0;
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}
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