Changeset 105:0d9c9e004be0 in freeDiameter for freeDiameter/apps.c

Timestamp:

Dec 8, 2009, 1:38:43 PM (14 years ago)

Author:

Sebastien Decugis <sdecugis@nict.go.jp>

Branch:

default

Phase:

public

Message:

Compute common applications after CER reception

File:

• freeDiameter/apps.c (modified) (1 diff)

freeDiameter/apps.c

@@ -100 +100 @@
         return 0;
 }
+
+/* Check if two lists have at least one common application */
+int fd_app_check_common(struct fd_list * list1, struct fd_list * list2, int * common_found)
+{
+        struct fd_list * li1, *li2;
+        
+        TRACE_ENTRY("%p %p %p", list1, list2, common_found);
+        CHECK_PARAMS( list1 && list2 && common_found );
+        
+        /* Both lists are ordered, so advance both pointers at the same time */
+        for (li1 = list1->next, li2 = list2->next;  (li1 != list1) && (li2 != list2); ) {
+                struct fd_app * a1 = (struct fd_app *)li1, *a2 = (struct fd_app *)li2;
+                if (a1->appid < a2->appid) {
+                        li1 = li1->next;
+                        continue;
+                }
+                if (a1->appid > a2->appid) {
+                        li2 = li2->next;
+                        continue;
+                }
+                /* They are equal, compare the applications */
+                if ((a1->flags.auth && a2->flags.auth) || (a1->flags.acct && a2->flags.acct)) {
+                        /* found! */
+                        *common_found = 1;
+                        return 0;
+                }
+                
+                /* This application is not common, advance both lists */
+                li1 = li1->next;
+                li2 = li2->next;
+        }
+        
+        /* We did not find a common app */
+        *common_found = 0;
+        return 0;
+}