From 6021ee85cb3c13754a0f205469824e7f9fb0df69 Mon Sep 17 00:00:00 2001
From: Sebastien Helleu <flashcode@flashtux.org>
Date: Sun, 23 Apr 2006 08:19:06 +0000
Subject: Fixed bug #16416 (crash when purging old DCC chats)

---
 src/gui/gui-buffer.c         |  4 ++++
 src/irc/irc-dcc.c            | 19 +++++++++++++++++++
 src/irc/irc.h                |  1 +
 weechat/src/gui/gui-buffer.c |  4 ++++
 weechat/src/irc/irc-dcc.c    | 19 +++++++++++++++++++
 weechat/src/irc/irc.h        |  1 +
 6 files changed, 48 insertions(+)

diff --git a/src/gui/gui-buffer.c b/src/gui/gui-buffer.c
index 3f7107bc3..c57207384 100644
--- a/src/gui/gui-buffer.c
+++ b/src/gui/gui-buffer.c
@@ -435,6 +435,10 @@ gui_buffer_free (t_gui_buffer *buffer, int switch_to_another)
     
     if (buffer->type == BUFFER_TYPE_RAW_DATA)
         gui_buffer_raw_data = NULL;
+
+    /* purge DCC chat using this buffer */
+    if (CHANNEL(buffer))
+        dcc_chat_remove_channel (CHANNEL(buffer));
     
     for (ptr_server = irc_servers; ptr_server;
          ptr_server = ptr_server->next_server)
diff --git a/src/irc/irc-dcc.c b/src/irc/irc-dcc.c
index 11d28cf8b..378625b8e 100644
--- a/src/irc/irc-dcc.c
+++ b/src/irc/irc-dcc.c
@@ -509,6 +509,25 @@ dcc_channel_for_chat (t_irc_dcc *ptr_dcc)
                      GUI_COLOR(COLOR_WIN_CHAT));
 }
 
+/*
+ * dcc_chat_remove_channel: remove a buffer for DCC chat
+ */
+
+void
+dcc_chat_remove_channel (t_irc_channel *channel)
+{
+    t_irc_dcc *ptr_dcc;
+    
+    if (!channel)
+        return;
+
+    for (ptr_dcc = dcc_list; ptr_dcc; ptr_dcc = ptr_dcc->next_dcc)
+    {
+        if (ptr_dcc->channel == channel)
+            ptr_dcc->channel = NULL;
+    }
+}
+
 /*
  * dcc_recv_connect_init: connect to sender and init file or chat
  */
diff --git a/src/irc/irc.h b/src/irc/irc.h
index 898188608..dfab3e766 100644
--- a/src/irc/irc.h
+++ b/src/irc/irc.h
@@ -406,6 +406,7 @@ extern void nick_print_log (t_irc_nick *);
 extern void dcc_redraw (int);
 extern void dcc_free (t_irc_dcc *);
 extern void dcc_close (t_irc_dcc *, int);
+extern void dcc_chat_remove_channel (t_irc_channel *);
 extern void dcc_accept (t_irc_dcc *);
 extern void dcc_accept_resume (t_irc_server *, char *, int, unsigned long);
 extern void dcc_start_resume (t_irc_server *, char *, int, unsigned long);
diff --git a/weechat/src/gui/gui-buffer.c b/weechat/src/gui/gui-buffer.c
index 3f7107bc3..c57207384 100644
--- a/weechat/src/gui/gui-buffer.c
+++ b/weechat/src/gui/gui-buffer.c
@@ -435,6 +435,10 @@ gui_buffer_free (t_gui_buffer *buffer, int switch_to_another)
     
     if (buffer->type == BUFFER_TYPE_RAW_DATA)
         gui_buffer_raw_data = NULL;
+
+    /* purge DCC chat using this buffer */
+    if (CHANNEL(buffer))
+        dcc_chat_remove_channel (CHANNEL(buffer));
     
     for (ptr_server = irc_servers; ptr_server;
          ptr_server = ptr_server->next_server)
diff --git a/weechat/src/irc/irc-dcc.c b/weechat/src/irc/irc-dcc.c
index 11d28cf8b..378625b8e 100644
--- a/weechat/src/irc/irc-dcc.c
+++ b/weechat/src/irc/irc-dcc.c
@@ -509,6 +509,25 @@ dcc_channel_for_chat (t_irc_dcc *ptr_dcc)
                      GUI_COLOR(COLOR_WIN_CHAT));
 }
 
+/*
+ * dcc_chat_remove_channel: remove a buffer for DCC chat
+ */
+
+void
+dcc_chat_remove_channel (t_irc_channel *channel)
+{
+    t_irc_dcc *ptr_dcc;
+    
+    if (!channel)
+        return;
+
+    for (ptr_dcc = dcc_list; ptr_dcc; ptr_dcc = ptr_dcc->next_dcc)
+    {
+        if (ptr_dcc->channel == channel)
+            ptr_dcc->channel = NULL;
+    }
+}
+
 /*
  * dcc_recv_connect_init: connect to sender and init file or chat
  */
diff --git a/weechat/src/irc/irc.h b/weechat/src/irc/irc.h
index 898188608..dfab3e766 100644
--- a/weechat/src/irc/irc.h
+++ b/weechat/src/irc/irc.h
@@ -406,6 +406,7 @@ extern void nick_print_log (t_irc_nick *);
 extern void dcc_redraw (int);
 extern void dcc_free (t_irc_dcc *);
 extern void dcc_close (t_irc_dcc *, int);
+extern void dcc_chat_remove_channel (t_irc_channel *);
 extern void dcc_accept (t_irc_dcc *);
 extern void dcc_accept_resume (t_irc_server *, char *, int, unsigned long);
 extern void dcc_start_resume (t_irc_server *, char *, int, unsigned long);
-- 
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