How to link C code to which Bluetooth library ? ( Linux)

Lost User

I am trying to port this C code into C++. I am stuck linking to library - few reasons which library am I supposed to use - libbluetooth or bluetooth ? I am using QTCreator ( pseudo IDE) and really do not know how the access the compiler / linker directly , hence not sure if I need to add "-l" but I can figure that out when I manage to actually find either library file - so far no luck ( and did ask elsewhere for help with that ) This very old basic C code and there is no way to ask the author. I just need some assistance to link this code to correct library. Thanks, any help with the library issue will be greatly appreciated .

To compile our program, invoke gcc and link against libbluetooth

gcc -o simplescan simplescan.c -lbluetooth

Example 4-1. simplescan.c

#include
#include
#include
#include
#include
#include
#include

int main(int argc, char **argv)
{
inquiry_info *ii = NULL;
int max_rsp, num_rsp;
int dev_id, sock, len, flags;
int i;
char addr[19] = { 0 };
char name[248] = { 0 };

dev\_id = hci\_get\_route(NULL);
sock = hci\_open\_dev( dev\_id );
if (dev\_id < 0 || sock < 0) {
    perror("opening socket");
    exit(1);
}

len  = 8;
max\_rsp = 255;
flags = IREQ\_CACHE\_FLUSH;
ii = (inquiry\_info\*)malloc(max\_rsp \* sizeof(inquiry\_info));

num\_rsp = hci\_inquiry(dev\_id, len, max\_rsp, NULL, &ii, flags);
if( num\_rsp < 0 ) perror("hci\_inquiry");

for (i = 0; i < num\_rsp; i++) {
    ba2str(&(ii+i)->bdaddr, addr);
    memset(name, 0, sizeof(name));
    if (hci\_read\_remote\_name(sock, &(ii+i)->bdaddr, sizeof(name),
        name, 0) < 0)
    strcpy(name, "\[unknown\]");
    printf("%s  %s\\n", addr, name);
}

free( ii );
close( sock );
return 0;

}

k5054

asked and answered in QA, I think.

Keep Calm and Carry On

Lost User

And previously answered back in March this year: Re: How to find what name and where the (bluetooth) library is located? - Linux Programming Discussion Boards[^].