linux下基于Bluez实现蓝牙SPP服务端demo

#include <stdio.h> #include <errno.h> #include <fcntl.h> #include <unistd.h> #include <stdlib.h> #include <string.h> #include <getopt.h> #include <signal.h> #include <termios.h> #include <sys/poll.h> #include <sys/param.h> #include <sys/ioctl.h> #include <sys/socket.h> #include <sys/wait.h>     #include <bluetooth/bluetooth.h> #include <bluetooth/rfcomm.h> #include <stdio.h> #include <unistd.h> #include <sys/socket.h> #include <bluetooth/bluetooth.h> #include <bluetooth/rfcomm.h>   int main(int argc, char **argv) {      orther_server();      while(1){         usleep(1000);      }      return 0; } void baswap(bdaddr_t *dst, const bdaddr_t *src) {     unsigned char *      d = (unsigned char *)dst;     const unsigned char *s = (const unsigned char *)src;     int                  i;     for (i = 0; i < 6; i++) d[i] = s[5 - i]; } int ba2str(const bdaddr_t *ba, char *str) {     uint8_t b[6];     baswap((bdaddr_t *)b, ba);     return sprintf(str, "%2.2X:%2.2X:%2.2X:%2.2X:%2.2X:%2.2X", b[0], b[1], b[2], b[3], b[4], b[5]); } int orther_server() {     struct sockaddr_rc loc_addr = { 0 }, rem_addr = { 0 };     char buf[1024] = { 0 };     int s, client, bytes_read;     int opt = sizeof(rem_addr);     // allocate socket     s = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);     // bind socket to port 1 of the first available     // local bluetooth adapter     loc_addr.rc_family = AF_BLUETOOTH;     loc_addr.rc_bdaddr = *BDADDR_ANY;     loc_addr.rc_channel = (uint8_t) 1;//这里的通道就是SPP的通道     bind(s, (struct sockaddr *)&loc_addr, sizeof(loc_addr));     // put socket into listening mode     listen(s, 1);     printf("orther_server listen success\n");     // accept one connection     //这里accept没有做并发处理，只能连接要给设，后续可自行扩展     client = accept(s, (struct sockaddr *)&rem_addr, &opt);     ba2str( &rem_addr.rc_bdaddr, buf );     printf("client connected success\n");     fprintf(stderr, "accepted connection from %s\n", buf);     //这里循环读数据也没有做线程处理，一直在读，应该放到线程种，同样的写数据一样的道理     for(;;)     {         memset(buf, 0, sizeof(buf));         // read data from the client         bytes_read = read(client, buf, sizeof(buf));         if( bytes_read > 0 ) {             printf("received [%s]\n", buf);         }     }     // close connection     close(client);               close(s);     return 0; }