From 85635af1852b29e33ee56535d71bdf20d700b77e Mon Sep 17 00:00:00 2001
From: Edvin <edj7467@gmail.com>
Date: Tue, 8 Apr 2025 10:32:57 +0200
Subject: Added C code for the Raspberry pi due to compatiblity issues between
 Bluez versions

---
 Makefile   |  2 ++
 control.py |  5 +----
 main.py    |  2 +-
 rpi.c      | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 54 insertions(+), 5 deletions(-)
 create mode 100644 Makefile
 create mode 100644 rpi.c

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..880e92f
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,2 @@
+main: rpi.c
+	cc rpi.c -Wall -lbluetooth -o rpi
diff --git a/control.py b/control.py
index 9c10693..aa86c1b 100644
--- a/control.py
+++ b/control.py
@@ -17,15 +17,12 @@ def get_input() -> str:
 pi = "B8:27:EB:D1:A5:A9"
 
 sock = bluetooth.BluetoothSocket(bluetooth.RFCOMM)
-# sock.bind(("", bluetooth.PORT_ANY))
-
-# port = sock.getsockname()[1]
 
 print("Attempting to connect to %s..." % pi)
 
 sock.connect((pi, 1))
 
-print("Connected")
+print("Connected to %s." % pi)
 
 input = "0"
 
diff --git a/main.py b/main.py
index 4720154..7362778 100644
--- a/main.py
+++ b/main.py
@@ -30,7 +30,7 @@ print("Waiting for connection on RFCOMM channel %d..." % port)
 
 client_sock, client_info = server_sock.accept()
 
-print("Connected with %d" % client_info)
+print("Connected to %s." % client_info[0])
 
 while client_sock:
     read = client_sock.recv(1024)
diff --git a/rpi.c b/rpi.c
new file mode 100644
index 0000000..3f6fa08
--- /dev/null
+++ b/rpi.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <bluetooth/bluetooth.h>
+#include <bluetooth/rfcomm.h>
+
+int main(int argc, char **argv)
+{
+    struct sockaddr_rc loc_addr = { 0 }, rem_addr = { 0 };
+    char buf[1024] = { 0 };
+    int s, client, bytes_read;
+    socklen_t 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;
+    bind(s, (struct sockaddr *)&loc_addr, sizeof(loc_addr));
+    
+    // get local address
+    // ba2str( &loc_addr.rc_bdaddr, buf );
+    // fprintf(stdout, "local %s\n", buf);
+    
+    // put socket into listening mode
+    fprintf(stdout, "Waiting on connection on RFCOMM channel %i...\n", loc_addr.rc_channel);
+    listen(s, loc_addr.rc_channel);
+
+    // accept one connection
+    client = accept(s, (struct sockaddr *)&rem_addr, &opt);
+    ba2str( &rem_addr.rc_bdaddr, buf );
+    fprintf(stdout, "Accepted connection from %s\n", buf);
+
+    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;
+}
-- 
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