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/*
* Copyright 2012 The Android Open Source Project
*
* 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.
*/
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <getopt.h>
#define LOG_TAG "bdAddrLoader"
#include <cutils/log.h>
#include <cutils/properties.h>
#define FILE_PATH_MAX 100
#define BD_ADDR_LEN 6
#define BD_ADDR_STR_LEN 18
#define FTM_PATH_COMMON "/persist"
#define FTM_PATH_BT_ADDR "bluetooth/.bdaddr"
#define FTM_PATH_WIFI_ADDR "wifi/.wlanaddr"
#define DEFAULT_BD_ADDR_PROP "persist.service.bt.bdaddr"
int hexa_to_ascii(const unsigned char* hexa, char* ascii, int nHexLen)
{
int i, j;
char hex_table[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
'A', 'B', 'C', 'D', 'E', 'F'};
for (i = 0, j = 0; i <nHexLen; i++, j += 2) {
ascii[j] = hex_table[hexa[i] >> 4];
ascii[j + 1] = hex_table[hexa[i] & 0x0F];
}
ascii[nHexLen*2] = '\0';
return 0;
}
int readBDAddrData(const char* szFilePath, unsigned char* addrData, int nDataLen)
{
int nFd, nRdCnt;
nFd = open(szFilePath, O_RDONLY);
if(nFd < 0){
ALOGW("There is no Address File in FTM area : %s\n", szFilePath);
return 1;
}
nRdCnt = read(nFd, addrData, nDataLen);
if(nRdCnt != nDataLen){
ALOGE("Fail to read Address data from FTM area\n");
close(nFd);
return 1;
}
return 0;
}
void formattingBdAddr(char *szBDAddr, const char cSep)
{
int i=1, j=0;
int pos=0;
for(i=1; i<BD_ADDR_LEN; i++){
pos = strlen(szBDAddr);
for(j=0; j<(BD_ADDR_LEN*2)-i*2; j++){
szBDAddr[pos-j] = szBDAddr[pos-j-1];
}
szBDAddr[pos-j]=cSep;
}
}
int main(int argc, char *argv[])
{
int nFd, nRdCnt;
char szFilePath[FILE_PATH_MAX] = {0,};
unsigned char addrData[BD_ADDR_LEN] = {0,};
char szBDAddr[BD_ADDR_STR_LEN] = {0,};
char *szBDAddrPath = NULL;
char *szProperty = NULL;
char bStdOut = 0;
int c;
while((c=getopt(argc, argv, ":i:o:p")) != -1){
switch(c){
case 'i': // input file path
szBDAddrPath = optarg;
break;
case 'o': // output : property name
szProperty = optarg;
break;
case 'p':
bStdOut = 1;
break;
default:
ALOGW("Unknown option : %c", c);
break;
}
}
if(szBDAddrPath == NULL){
//set default bd address path
sprintf(szFilePath, "%s/%s", FTM_PATH_COMMON, FTM_PATH_BT_ADDR);
szBDAddrPath = szFilePath;
}
if(!readBDAddrData(szBDAddrPath, addrData, BD_ADDR_LEN)){
if(!hexa_to_ascii(addrData, szBDAddr, BD_ADDR_LEN)){
formattingBdAddr(szBDAddr, '.');
// write loaded bdaddr to property
if(szProperty != NULL) property_set(szProperty, szBDAddr);
// print out szBDAddr
if(bStdOut) printf("%s",szBDAddr);
return 0;
}
else{
ALOGE("Fail to convert data from hex to ascii");
}
}
return 1;
}
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