From 34e25f6c74bd7fdbdaa4db3d47159fd414b853c2 Mon Sep 17 00:00:00 2001
From: Janos SUTO <sj@acts.hu>
Date: Wed, 27 Nov 2019 20:47:04 +0100
Subject: [PATCH] Introduced check_for_client_timeout_interval config parameter

Signed-off-by: Janos SUTO <sj@acts.hu>
---
 etc/example.conf | 3 +++
 src/cfg.c        | 1 +
 src/cfg.h        | 1 +
 src/piler-smtp.c | 5 ++---
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/etc/example.conf b/etc/example.conf
index dc7a4d12..739a236c 100644
--- a/etc/example.conf
+++ b/etc/example.conf
@@ -66,6 +66,9 @@ listen_port=25
 
 clamd_socket=/tmp/clamd
 
+; check for client timeout interval. Default: 30 sec
+check_for_client_timeout_interval=30
+
 ; smtp timeout. Default: 60 sec
 smtp_timeout=60
 
diff --git a/src/cfg.c b/src/cfg.c
index 490011b6..a49cf16a 100644
--- a/src/cfg.c
+++ b/src/cfg.c
@@ -62,6 +62,7 @@ struct _parse_rule config_parse_rules[] =
    { "archive_emails_not_having_message_id", "integer", (void*) int_parser, offsetof(struct config, archive_emails_not_having_message_id), "0", sizeof(int)},
    { "archive_only_mydomains", "integer", (void*) int_parser, offsetof(struct config, archive_only_mydomains), "0", sizeof(int)},
    { "backlog", "integer", (void*) int_parser, offsetof(struct config, backlog), "20", sizeof(int)},
+   { "check_for_client_timeout_interval", "integer", (void*) int_parser, offsetof(struct config, check_for_client_timeout_interval), "30", sizeof(int)},
    { "cipher_list", "string", (void*) string_parser, offsetof(struct config, cipher_list), "ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:ECDH+3DES:DH+3DES:RSA+AESGCM:RSA+AES:RSA+3DES:!aNULL:!MD5:!DSS", MAXVAL-1},
    { "clamd_addr", "string", (void*) string_parser, offsetof(struct config, clamd_addr), "", MAXVAL-1},
    { "clamd_port", "integer", (void*) int_parser, offsetof(struct config, clamd_port), "0", sizeof(int)},
diff --git a/src/cfg.h b/src/cfg.h
index 9bf7df84..03ea7d12 100644
--- a/src/cfg.h
+++ b/src/cfg.h
@@ -49,6 +49,7 @@ struct config {
    int verbosity;
    char locale[MAXVAL];
 
+   int check_for_client_timeout_interval;
    int smtp_timeout;
    int helper_timeout;
    int extract_attachments;
diff --git a/src/piler-smtp.c b/src/piler-smtp.c
index f87ecaf2..9ecff3bf 100644
--- a/src/piler-smtp.c
+++ b/src/piler-smtp.c
@@ -31,7 +31,6 @@ extern char *optarg;
 extern int optind;
 
 struct epoll_event event, *events=NULL;
-int timeout = 20; // checking for timeout this often [sec]
 int num_connections = 0;
 int listenerfd = -1;
 
@@ -98,7 +97,7 @@ void check_for_client_timeout(){
       }
    }
 
-   alarm(timeout);
+   alarm(cfg.check_for_client_timeout_interval);
 }
 
 
@@ -216,7 +215,7 @@ int main(int argc, char **argv){
    if(daemonise == 1 && daemon(1, 0) == -1) fatal(ERR_DAEMON);
 #endif
 
-   alarm(timeout);
+   alarm(cfg.check_for_client_timeout_interval);
 
    for(;;){
       n = epoll_wait(efd, events, cfg.max_connections, -1);