From 1f34780e2ee55984ebd4265bd7b308c6aeee348f Mon Sep 17 00:00:00 2001
From: Pierre Habouzit <madcoder@debian.org>
Date: Sat, 26 May 2007 19:41:08 +0200
Subject: [PATCH] tail is always a list_item**.

  Because you don't need to special case the empty list *gee*.
  Fix code using tail.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
---
 nntp/newsrc.c | 18 +++++-------------
 nntp/nntp.c   | 26 ++++++++++----------------
 nntp/nntp.h   |  2 +-
 3 files changed, 16 insertions(+), 30 deletions(-)

diff --git a/nntp/newsrc.c b/nntp/newsrc.c
index 59ca74f..c919d86 100644
--- a/nntp/newsrc.c
+++ b/nntp/newsrc.c
@@ -21,20 +21,11 @@
 #include "sort.h"
 #include "nntp.h"
 
-void nntp_add_to_list (NNTP_SERVER * s, NNTP_DATA * d)
+void nntp_add_to_list(NNTP_SERVER *s, NNTP_DATA *d)
 {
-  string_list_t *l;
-
-  if (!s || !d)
-    return;
-
-  l = p_new(string_list_t, 1);
-  if (s->list)
-    s->tail->next = l;
-  else
-    s->list = l;
-  s->tail = l;
-  l->data = (void *) d;
+    *s->tail = p_new(string_list_t, 1);
+    (*s->tail)->data = (void *)d;
+    s->tail = &(*s->tail)->next;
 }
 
 static int nntp_parse_newsrc_line (NNTP_SERVER * news, char *line)
@@ -376,6 +367,7 @@ NNTP_SERVER *mutt_select_newsserver (char *server)
 
   /* New newsserver */
   serv = p_new(NNTP_SERVER, 1);
+  serv->tail = &serv->list;
   serv->conn = conn;
   serv->newsrc = m_strdup(file);
   serv->newsgroups = hash_new(1009, false);
diff --git a/nntp/nntp.c b/nntp/nntp.c
index 7409044..b39e67a 100644
--- a/nntp/nntp.c
+++ b/nntp/nntp.c
@@ -1240,8 +1240,7 @@ int nntp_check_newgroups (NNTP_SERVER * serv, int force)
 {
   char buf[LONG_STRING];
   NNTP_DATA nntp_data;
-  string_list_t *l;
-  string_list_t emp;
+  string_list_t *l, **emp;
   time_t now;
   struct tm *t;
 
@@ -1278,7 +1277,8 @@ int nntp_check_newgroups (NNTP_SERVER * serv, int force)
     nntp_data.group = ((NNTP_DATA *) Context->data)->group;
   else
     nntp_data.group = NULL;
-  l = serv->tail;
+
+  emp = serv->tail;
   if (mutt_nntp_fetch (&nntp_data, buf, _("Adding new newsgroups..."), NULL,
                        add_group, serv, 0) != 0) {
     return -1;
@@ -1286,20 +1286,14 @@ int nntp_check_newgroups (NNTP_SERVER * serv, int force)
 
   mutt_message _("Loading descriptions...");
 
-  if (l)
-    emp.next = l->next;
-  else
-    emp.next = serv->list;
-  l = &emp;
-  while (l->next) {
-    l = l->next;
-    ((NNTP_DATA *) l->data)->new = 1;
-    nntp_get_desc ((NNTP_DATA *) l->data, ((NNTP_DATA *) l->data)->group,
-                   NULL, NULL);
+  for (l = *emp; l; l = l->next) {
+    ((NNTP_DATA *)l->data)->new = 1;
+    nntp_get_desc((NNTP_DATA *) l->data, ((NNTP_DATA *)l->data)->group,
+                  NULL, NULL);
   }
-  if (emp.next)
-    nntp_save_cache_index (serv);
-  mutt_clear_error ();
+  if (*emp)
+    nntp_save_cache_index(serv);
+  mutt_clear_error();
   return _checked;
 }
 
diff --git a/nntp/nntp.h b/nntp/nntp.h
index 0fe2605..18b20fe 100644
--- a/nntp/nntp.h
+++ b/nntp/nntp.h
@@ -50,7 +50,7 @@ typedef struct {
   time_t check_time;
   hash_t *newsgroups;
   string_list_t *list;                   /* list of newsgroups */
-  string_list_t *tail;                   /* last entry of list */
+  string_list_t **tail;                  /* last entry of list */
   CONNECTION *conn;
 } NNTP_SERVER;
 
-- 
2.20.1