From: Alan T. DeKok <aland@freeradius.org>
Date: Sat, 19 Oct 2019 11:57:48 +0000 (-0400)
Subject: don't do locking on files in /dev.  Closes #3057
X-Git-Tag: release_3_0_20~39
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e52715e895da2bf64b7a1a5253c39045ee04c87e;p=thirdparty%2Ffreeradius-server.git

don't do locking on files in /dev.  Closes #3057
---

diff --git a/src/modules/rlm_linelog/rlm_linelog.c b/src/modules/rlm_linelog/rlm_linelog.c
index 3c15bf04b30..3da07d9011c 100644
--- a/src/modules/rlm_linelog/rlm_linelog.c
+++ b/src/modules/rlm_linelog/rlm_linelog.c
@@ -144,7 +144,13 @@ static int mod_instantiate(CONF_SECTION *conf, void *instance)
 		return -1;
 	}
 
-	inst->ef = exfile_init(inst, 256, 30, true);
+	/*
+	 *	If the admin wants the logs to go to stdout or stderr,
+	 *	then skip locking / seeking on those files.  Since
+	 *	everything in /dev/ isn't a real file, we can't seek
+	 *	or lock it.
+	 */
+	inst->ef = exfile_init(inst, 256, 30, (strncmp(inst->filename, "/dev/", 5) != 0));
 	if (!inst->ef) {
 		cf_log_err_cs(conf, "Failed creating log file context");
 		return -1;