From 2575a78b0e5a4c58849a4a7f9bcce0d6b970db6d Mon Sep 17 00:00:00 2001
From: Elizabeth Myers <elizabeth@interlinked.me>
Date: Wed, 6 Apr 2016 05:43:54 -0500
Subject: [PATCH] Add hook for when rehash is called.

This will be used by the future alias module.
---
 include/hook.h | 6 ++++++
 ircd/hook.c    | 2 ++
 ircd/s_conf.c  | 7 +++++--
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/hook.h b/include/hook.h
index 0198ae7b..72cc9fdd 100644
--- a/include/hook.h
+++ b/include/hook.h
@@ -33,6 +33,7 @@ extern int h_privmsg_user;
 extern int h_conf_read_start;
 extern int h_conf_read_end;
 extern int h_outbound_msgbuf;
+extern int h_rehash;
 
 void init_hook(void);
 int register_hook(const char *name);
@@ -142,4 +143,9 @@ typedef struct
 	int approved;
 } hook_data_privmsg_user;
 
+typedef struct
+{
+	bool signal;
+} hook_data_rehash;
+
 #endif
diff --git a/ircd/hook.c b/ircd/hook.c
index dfb7a1f9..a15afdd0 100644
--- a/ircd/hook.c
+++ b/ircd/hook.c
@@ -62,6 +62,7 @@ int h_privmsg_channel;
 int h_conf_read_start;
 int h_conf_read_end;
 int h_outbound_msgbuf;
+int h_rehash;
 
 void
 init_hook(void)
@@ -84,6 +85,7 @@ init_hook(void)
 	h_conf_read_start = register_hook("conf_read_start");
 	h_conf_read_end = register_hook("conf_read_end");
 	h_outbound_msgbuf = register_hook("outbound_msgbuf");
+	h_rehash = register_hook("rehash");
 }
 
 /* grow_hooktable()
diff --git a/ircd/s_conf.c b/ircd/s_conf.c
index 19ea9fd0..36f336a4 100644
--- a/ircd/s_conf.c
+++ b/ircd/s_conf.c
@@ -633,13 +633,14 @@ attach_conf(struct Client *client_p, struct ConfItem *aconf)
 bool
 rehash(bool sig)
 {
+	hook_data_rehash hdata = { sig };
+
 	if(sig)
-	{
 		sendto_realops_snomask(SNO_GENERAL, L_ALL,
 				     "Got signal SIGHUP, reloading ircd conf. file");
-	}
 
 	rehash_authd();
+
 	/* don't close listeners until we know we can go ahead with the rehash */
 	read_conf_files(false);
 
@@ -649,6 +650,8 @@ rehash(bool sig)
 		rb_strlcpy(me.info, "unknown", sizeof(me.info));
 
 	open_logfiles();
+
+	call_hook(h_rehash, &hdata);
 	return false;
 }