55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
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#include <fcntl.h>
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#include <string.h>
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#include <cutils/properties.h>
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#include <cutils/log.h>
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#define LOG_TAG "bdaddr"
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#define SAMSUNG_BDADDR_PATH "/efs/imei/bt.txt"
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#define BDADDR_PATH "/data/bdaddr"
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/* Read bluetooth MAC from SAMSUNG_BDADDR_PATH (different format),
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* write it to BDADDR_PATH, and set ro.bt.bdaddr_path to BDADDR_PATH
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*
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* Adapted from bdaddr_read.c of thunderg
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*/
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int main() {
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char tmpbdaddr[23]; // bt_macaddr:xxxxxxxxxxxx
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char bdaddr[18];
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int count;
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int fd;
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fd = open(SAMSUNG_BDADDR_PATH, O_RDONLY);
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if(fd < 0) {
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fprintf(stderr, "open(%s) failed\n", SAMSUNG_BDADDR_PATH);
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LOGE("Can't open %s\n", SAMSUNG_BDADDR_PATH);
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return -1;
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}
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count = read(fd, tmpbdaddr, sizeof(tmpbdaddr));
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if (count < 0) {
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fprintf(stderr, "read(%s) failed\n", SAMSUNG_BDADDR_PATH);
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LOGE("Can't read %s\n", SAMSUNG_BDADDR_PATH);
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return -1;
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}
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else if (count != sizeof(tmpbdaddr)) {
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fprintf(stderr, "read(%s) unexpected size %d\n", SAMSUNG_BDADDR_PATH, count);
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LOGE("Error reading %s (unexpected size %d)\n", SAMSUNG_BDADDR_PATH, count);
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return -1;
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}
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count = sprintf(bdaddr, "%2.2s:%2.2s:%2.2s:%2.2s:%2.2s:%2.2s\0",
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tmpbdaddr+11,tmpbdaddr+13,tmpbdaddr+15,tmpbdaddr+17,tmpbdaddr+19,tmpbdaddr+21);
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fd = open(BDADDR_PATH, O_WRONLY|O_CREAT|O_TRUNC, 00600|00060|00006);
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if (fd < 0) {
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fprintf(stderr, "open(%s) failed\n", BDADDR_PATH);
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LOGE("Can't open %s\n", BDADDR_PATH);
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return -2;
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}
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write(fd, bdaddr, 18);
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close(fd);
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property_set("ro.bt.bdaddr_path", BDADDR_PATH);
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return 0;
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}
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