Use a GList for the tunesHosts list.
Also fixes a bug causing crash when a host goes offline.

diff -X dontdiff -urNp tunesbrowser-0.1.6/daap.c tunesbrowser-dsd/daap.c
--- tunesbrowser-0.1.6/daap.c	2004-07-31 15:05:02.000000000 +0100
+++ tunesbrowser-dsd/daap.c	2004-10-24 03:44:57.931629552 +0100
@@ -47,12 +47,9 @@ struct hostTAG
     char *sharename;
 
     int marked; /* used to test if its still in the enum callback */
-
-    Shost *prev;
-    Shost *next;
 };
 
-Shost *tunesHosts = NULL;
+GList *tunesHosts = NULL;
 
 Shost *curHost = NULL;
 int curDBID = 0;
@@ -146,13 +143,13 @@ static void free_artists()
 /* drawing */
 static void draw_source()
 {
-    Shost *cur = tunesHosts;
+    GList *cur = g_list_first(tunesHosts);
     sourcelist_clear();
 
     while (cur)
     {
-        sourcelist_append(cur, cur->sharename);
-        cur = cur->next;
+        sourcelist_append(cur->data, ((Shost*)cur->data)->sharename);
+        cur = g_list_next(cur);
     }
 }
 
@@ -230,23 +227,25 @@ static void updateDatabases(Shost *host)
 int addDAAPEnumCB(DAAP_SClient *client, DAAP_SClientHost *host, void *ctx)
 {
     Shost *newhost;
-    Shost **h;
+    GList *h;
 
     /* Check if the host is already in our list */
-    for (h = &tunesHosts; *h != NULL; h = &((*h)->next)) {
-        if ((*h)->daap_host == host)
+    h = g_list_first(tunesHosts);
+    while (h) {
+        Shost *newhost = h->data;
+        if (newhost->daap_host == host)
         {
-            (*h)->marked = 1;
+            newhost->marked = 1;
             return 1;
         }
+        h = g_list_next(h);
     }
 
     /* If not, add it to the end of the list */
-    newhost = malloc(sizeof(Shost));
+    newhost = g_malloc0(sizeof(Shost));
 
     DAAP_ClientHost_AddRef(host);
 
-    newhost->next = NULL;
     newhost->daap_host = host;
     newhost->sharename = NULL;
 
@@ -255,7 +254,7 @@ int addDAAPEnumCB(DAAP_SClient *client, 
 
     newhost->marked = 1;
 
-    *h = newhost;
+    tunesHosts = g_list_append(tunesHosts, newhost);
 
     return 1;
 }
@@ -268,37 +267,36 @@ void init_daap()
 void init_daap_sources()
 {
     /* FIXME should discover */
-    Shost *curhost;
+    GList *hostlist;
+    GList *todelete = NULL;
 
     fprintf(stderr, "init daap sources\n");
-    for (curhost = tunesHosts; curhost != NULL; curhost = curhost->next)
-        curhost->marked = 0;
+    hostlist = g_list_first(tunesHosts);
+    while (hostlist) {
+        if (hostlist->data != NULL)
+            ((Shost*)hostlist->data)->marked = 0;
+        hostlist = g_list_next(hostlist);
+    }
 
     DAAP_Client_EnumerateHosts(clientInst,
             addDAAPEnumCB, NULL);
 
-    curhost = tunesHosts;
-    while (curhost)
+    hostlist = g_list_first(tunesHosts);
+    while (hostlist)
     {
-        Shost *next = curhost->next;
+        Shost *curhost = hostlist->data;
+        char *buf;
+        int size;
+
         if (curhost->marked == 0)
         { /* remove it */
             fprintf(stderr, "deleting host!\n");
-            if (curhost->prev) curhost->prev->next = next;
-            else tunesHosts = next;
-            if (next) next->prev = curhost->prev;
-            DAAP_ClientHost_Release(curhost->daap_host);
+            todelete = g_list_append(todelete, hostlist);
+            goto next;
         }
-        curhost = next;
-    }
-
-    for (curhost = tunesHosts; curhost != NULL; curhost = curhost->next)
-    {
-        char *buf;
-        int size;
 
         if (curhost->sharename)
-            continue;
+            goto next;
 
         size = DAAP_ClientHost_GetSharename(curhost->daap_host,
                                             NULL, 0);
@@ -306,7 +304,21 @@ void init_daap_sources()
         size = DAAP_ClientHost_GetSharename(curhost->daap_host,
                                             buf, size);
         curhost->sharename = buf;
+
+    next:
+        hostlist = hostlist->next;
+    }
+
+    todelete = g_list_first(todelete);
+    while (todelete) {
+        GList *node = todelete->data;
+        DAAP_ClientHost_Release(((Shost*)node)->daap_host);
+        tunesHosts = g_list_delete_link(tunesHosts, node);
+
+        if (!todelete->next) break;
+        todelete = g_list_next(todelete);
     }
+    g_list_free(todelete);
 
     draw_source();
 }