HCI scan added

Author: bakulev

Makefile

@@ -7,7 +7,7 @@ INSTALL = /usr/local/bin
 
 #FLAGS = $(CFLAGS) -Wall -g -DDEBUG -DDEBUG_INFO -DDEBUG_MAIN -DDEBUG_BT -DDEBUG_NET -DDEBUG_BT_DISCOVER -DDEBUG_BTNET -DDEBUG_NET_INFO
 #FLAGS = $(CFLAGS) -Wall -g -DDEBUG -DDEBUG_INFO -DDEBUG_MAIN -DDEBUG_BT -DDEBUG_NET -DDEBUG_BT_DISCOVER -DDEBUG_BTNET -DDEBUG_BTNET_INFO -DDEBUG_BT_INFO -DDEBUG_BTNET_INFO2
-FLAGS = $(CFLAGS) -Wall
+FLAGS = $(CFLAGS) -Wall -g -DDEBUG -DDEBUG_INFO -DDEBUG_MAIN -DDEBUG_BT -DDEBUG_NET -DDEBUG_BT_DISCOVER -DDEBUG_BTNET -DDEBUG_BTNET_INFO -DDEBUG_BT_INFO -DDEBUG_BTNET_INFO2
 
 OBJ = main.o rfcomm-server.o rfcomm-client.o rfcomm-register.o
 EXEC = rfcomm

rfcomm-client.c

@@ -3,6 +3,8 @@
 #include <sys/socket.h>
 #include <bluetooth/bluetooth.h>
 #include <bluetooth/rfcomm.h>
+#include <bluetooth/hci.h>
+#include <bluetooth/hci_lib.h>
 #include <errno.h>
 #include "rfcomm-client.h"
 
@@ -26,9 +28,13 @@ int rfcomm_client(void)
     struct sockaddr_rc addr = { 0 };
     int s, status;
     uint8_t port = 1;
-    char dest[18] = "C0:18:85:DC:BA:61";
+    char *dest = {0}; //"C0:18:85:DC:BA:61";
     int res;
 
+    printf("Start scanning.\n");
+    dest = (char*)malloc(18 * sizeof(char));
+    dest[17] = 0;
+    dest = hciscan(dest);
     // allocate a socket
     s = socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM);
 
@@ -41,7 +47,8 @@ int rfcomm_client(void)
 
     // connect to server
     status = connect(s, (struct sockaddr *)&addr, sizeof(addr));
-    printf("Connected.\n");
+    ba2str(&addr.rc_bdaddr, dest);
+    printf("Connected to address %s.\n", dest);
 
     // send a message
     if( status == 0 ) {
@@ -54,3 +61,50 @@ int rfcomm_client(void)
     close(s);
     return 0;
 }
+
+char* hciscan(char *dest_addr)
+{
+	inquiry_info *devices = NULL;
+	int max_rsp, num_rsp;
+	int adapter_id, sock, len, flags;
+	int i;
+	char addr[19] = {0};
+	char name[248] = {0};
+	adapter_id = hci_get_route(NULL);
+	sock = hci_open_dev(adapter_id);
+	if (adapter_id < 0 || sock < 0)
+	{
+		perror("opening socket");
+		exit(1);
+	}
+
+	dest_addr[0] = 0;
+	len = 8;
+	max_rsp = 255;
+	flags = IREQ_CACHE_FLUSH;
+	devices =(inquiry_info*)malloc(max_rsp * sizeof(inquiry_info));
+
+	num_rsp = hci_inquiry(adapter_id, len, max_rsp, NULL, &devices, flags);
+	if (num_rsp < 0) perror("hci_inquiry");
+
+	while(dest_addr[0] == 0)
+	{
+		printf("Select device to send data:");
+		for (i = 0; i < num_rsp; i++)
+		{
+			ba2str(&(devices + i)->bdaddr, addr);
+			memset(name, 0, sizeof(name));
+			if (0 != hci_read_remote_name(sock, &(devices + i)->bdaddr, sizeof(name), name, 0))
+			{
+			    // allocate a socket
+				strcpy(name, "[unknown]");
+			}
+			printf("%d: %s  %s\n", i, addr, name);
+		}
+		scanf("%d", &i);
+		if (i >= 0 && i < num_rsp) strncpy(dest_addr, addr, 18);
+	}
+
+	free(devices);
+	return dest_addr;
+}

rfcomm-client.h

@@ -4,3 +4,5 @@
 int dynamic_bind_rc(int sock, struct sockaddr_rc *sockaddr, uint8_t *port);
 
 int rfcomm_client(void);
+
+char* hciscan(char *dest_addr);