Added C Bluetooth scan example

Author Mitja Felicijan <mitja.felicijan@gmail.com> 2025-01-09 09:38:06 +0100
Committer Mitja Felicijan <mitja.felicijan@gmail.com> 2025-01-09 09:38:06 +0100
Commit 956db3204ad0b70424e4b834a00c785bec379a96 (patch)
-rw-r--r-- c-bluetooth/connect.c 47
-rw-r--r-- c-bluetooth/scan.c 2
2 files changed, 1 insertions, 48 deletions
diff --git a/c-bluetooth/connect.c b/c-bluetooth/connect.c
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#include <stdio.h>
  
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#include <stdlib.h>
  
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#include <unistd.h>
  
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#include <sys/socket.h>
  
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#include <bluetooth/bluetooth.h>
  
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#include <bluetooth/hci.h>
  
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#include <bluetooth/hci_lib.h>
  
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int main(int argc, char **argv) {
  
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	inquiry_info *ii = NULL;
  
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	int max_rsp, num_rsp;
  
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	int dev_id, sock, len, flags;
  
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	int i;
  
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	char addr[19] = { 0 };
  
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	char name[248] = { 0 };
  
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	dev_id = hci_get_route(NULL);
  
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	sock = hci_open_dev( dev_id );
  
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	if (dev_id < 0 || sock < 0) {
  
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		perror("opening socket");
  
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		exit(1);
  
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	}
  
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	len  = 8;
  
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	max_rsp = 255;
  
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	flags = IREQ_CACHE_FLUSH;
  
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	ii = (inquiry_info*)malloc(max_rsp * sizeof(inquiry_info));
  
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	num_rsp = hci_inquiry(dev_id, len, max_rsp, NULL, &ii, flags);
  
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	if( num_rsp < 0 ) {
  
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		perror("hci_inquiry");
  
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	}
  
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	for (i = 0; i < num_rsp; i++) {
  
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		ba2str(&(ii+i)->bdaddr, addr);
  
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		memset(name, 0, sizeof(name));
  
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		if (hci_read_remote_name(sock, &(ii+i)->bdaddr, sizeof(name), name, 0) < 0) {
  
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			strcpy(name, "[unknown]");
  
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		}
  
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		printf("%s  %s\n", addr, name);
  
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	}
  
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	free(ii);
  
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	close(sock);
  
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	return 0;
  
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}
  
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diff --git a/c-bluetooth/scan.c b/c-bluetooth/scan.c
...
27
	ii = (inquiry_info*)malloc(max_rsp * sizeof(inquiry_info));
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	ii = (inquiry_info*)malloc(max_rsp * sizeof(inquiry_info));
28
  
28
  
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	num_rsp = hci_inquiry(dev_id, len, max_rsp, NULL, &ii, flags);
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	num_rsp = hci_inquiry(dev_id, len, max_rsp, NULL, &ii, flags);
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	if(num_rsp < 0) {
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	if( num_rsp < 0 ) {
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		perror("hci_inquiry");
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		perror("hci_inquiry");
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	}
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	}
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...