From d6f72a51fe46b55758d63ca6bc09bbc5bf6199fc Mon Sep 17 00:00:00 2001
From: z3APA3A <3APA3A@3proxy.ru>
Date: Mon, 4 Apr 2016 13:43:08 +0300
Subject: [PATCH] fix race condition on 'log' command processing

---
 src/conf.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/conf.c b/src/conf.c
index 8e23d32..6730011 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -314,22 +314,23 @@ static int h_log(int argc, unsigned char ** argv){
 			}
 			conf.logtime = time(0);
 			if(conf.logname)myfree(conf.logname);
+			pthread_mutex_lock(&log_mutex);
 			conf.logname = (unsigned char *)mystrdup((char *)argv[1]);
 			fp = fopen((char *)dologname (tmpbuf, conf.logname, NULL, conf.logtype, conf.logtime), "a");
 			if(!fp){
-				perror("fopen()");
+				perror(tmpbuf);
+				pthread_mutex_unlock(&log_mutex);
 				return 1;
 			}
 			else {
-				pthread_mutex_lock(&log_mutex);
 				if(conf.stdlog)fclose(conf.stdlog);
 				conf.stdlog = fp;
-				pthread_mutex_unlock(&log_mutex);
 #ifdef _WINCE
 				freopen(tmpbuf, "w", stdout);
 				freopen(tmpbuf, "w", stderr);
 #endif
 			}
+			pthread_mutex_unlock(&log_mutex);
 		}
 	}
 	return 0;