Hello, I just found this board due to some unresolved trouble I've been having with a program I'm writing. When I compile (on gcc) I receive this warning.
b_poplist.c:48: warning: assignment from incompatible pointer type
If anyone knows why this warning comes up and could assist me in correcting it, it would be much appreciated.
I have tried to cast the right side as (b_list*) but that heeds no different results.
ie: cb_list->next = (b_list*)hb_list
Here is my code for b_poplist.c
Code:
#include "b_list.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
#include <unistd.h>
b_list *b_poplist(void)
{
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");
b_list *hb_list, *cb_list;
hb_list = NULL;
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("FOUND: (%d) = %s , %s\n",i , name, addr);
cb_list = calloc(1, sizeof(b_list));
cb_list->name = name;
cb_list->m_addrs = addr;
cb_list->next = hb_list; /* Warning occurs here line 48 */
hb_list = cb_list;
printf("ADDED: (%d) = %s , %s\n", i, hb_list->name, hb_list->m_addrs);
}
cb_list = hb_list;
free( ii );
close( sock );
printf("RETURNED: %s, %s\n", hb_list->name, hb_list->m_addrs);
return hb_list;
}
Also, the structure for the linked list b_list is such:
Code:
typedef struct
{
char* name;
char* m_addrs;
struct b_list* next;
} b_list;
Also, if you notice anything else in the code that could be fixed up to run a little better that would be appreciated as well.
Thanks,
Brian