wpa_supplicant: sort scan results by link quality to improve supplicant-controlled...
[librecmc/librecmc.git] / package / wpa_supplicant / patches / 140-quality.patch
1 Index: wpa_supplicant-0.6.3/wpa_supplicant/wpa_supplicant.c
2 ===================================================================
3 --- wpa_supplicant-0.6.3.orig/wpa_supplicant/wpa_supplicant.c   2008-07-24 16:28:58.000000000 +0200
4 +++ wpa_supplicant-0.6.3/wpa_supplicant/wpa_supplicant.c        2008-07-24 16:47:40.000000000 +0200
5 @@ -1182,7 +1182,7 @@
6  {
7  #define SCAN_AP_LIMIT 128
8         struct wpa_scan_result *results;
9 -       int num, i;
10 +       int num, i, j;
11         struct wpa_scan_results *res;
12  
13         results = os_malloc(SCAN_AP_LIMIT * sizeof(struct wpa_scan_result));
14 @@ -1279,6 +1279,21 @@
15                 res->res[res->num++] = r;
16         }
17  
18 +       /* sort scan results by quality */
19 +       for(i = 0; i < num - 1; i++) {
20 +               for(j = i + 1; j < num; j++) {
21 +                       struct wpa_scan_result tmp;
22 +
23 +                       if (results[i].qual > results[j].qual)
24 +                               continue;
25 +
26 +                       os_memcpy(&tmp, &results[i], sizeof(tmp));
27 +                       os_memcpy(&results[i], &results[j], sizeof(tmp));
28 +                       os_memcpy(&results[j], &tmp, sizeof(tmp));
29 +               }
30 +       }
31 +
32 +
33         os_free(results);
34         wpa_s->scan_res = res;
35