From 6a2f7b87d4fb19f30f64ede4b18582eb366c8b7d Mon Sep 17 00:00:00 2001
From: Luke Bratch <luke@bratch.co.uk>
Date: Wed, 12 Jun 2019 23:38:36 +0100
Subject: Allow reloading the configuration file at runtime using a BLABOUNCER
 command or by issuing the SIGHUP signal.

---
 functions.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

(limited to 'functions.c')

diff --git a/functions.c b/functions.c
index 5dbeb0c..abffb0b 100644
--- a/functions.c
+++ b/functions.c
@@ -990,3 +990,64 @@ void cleanexit(SSL *server_ssl, struct client *clients, int sourcefd, struct irc
 
   exit(0);
 }
+
+// Re-read the configuration file, setting 'failuremsg' to a failure message on failure.
+// Returns 1 on success or 0 on failure.
+int rehash(struct settings *settings, char *failuremsg) {
+  // TODO - Try to share some/all of this code with the initial main() settings loading
+
+  // What is the auto replay mode?
+  char oldreplaymode[MAXDATASIZE];
+  strcpy(oldreplaymode, settings->replaymode);
+  if (!getconfstr("replaymode", settings->conffile, settings->replaymode)) {
+    strcpy(settings->replaymode, oldreplaymode);
+    strcpy(failuremsg, "error getting 'replaymode' from configuration file");
+    return 0;
+  } else {
+    if (strcmp(settings->replaymode, "none") && strcmp(settings->replaymode, "time") && strcmp(settings->replaymode, "lastspoke")) {
+      strcpy(settings->replaymode, oldreplaymode);
+      strcpy(failuremsg, "replaymode in configuration file must be one of \"none\", \"time\", or \"lastspoke\"");
+      return 0;
+    }
+  }
+
+  // How many seconds of replay log should automatically be replayed - TODO - Can we do error checking on this?
+  int oldreplayseconds = settings->replayseconds;
+  settings->replayseconds = getconfint("replayseconds", settings->conffile);
+  if (errno == ECONFINT) {
+    settings->replayseconds = oldreplayseconds;
+    strcpy(failuremsg, "error getting 'replayseconds' from configuration file");
+    return 0;
+  }
+
+  // Is logging enabled?
+  int oldlogging = settings->logging;
+  settings->logging = getconfint("logging", settings->conffile);
+  if (errno == ECONFINT) {
+    settings->logging = oldlogging;
+    strcpy(failuremsg, "error getting 'logging' from configuration file");
+    return 0;
+  }
+
+  // Is replay logging enabled?
+  int oldreplaylogging = settings->replaylogging;
+  settings->replaylogging = getconfint("replaylogging", settings->conffile);
+  if (errno == ECONFINT) {
+    settings->replaylogging = oldreplaylogging;
+    strcpy(failuremsg, "error getting 'replaylogging' from configuration file");
+    return 0;
+  }
+
+  // Is debugging enabled?
+  int olddebug = debug;
+  debug = getconfint("debug", settings->conffile);
+  if (errno == ECONFINT) {
+    debug = olddebug;
+    strcpy(failuremsg, "error getting 'debug' from configuration file");
+    return 0;
+  }
+
+  // All is good, no failure message, return 1.
+  failuremsg[0] = '\0';
+  return 1;
+}
-- 
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