rsyslog/rsyslog-8.37.0-initialize-variables-and-check-return-value.patch

From 5ce33ba295e9e210aff7cb137998d8490583d516 Mon Sep 17 00:00:00 2001
From: wangshouping <wangshouping@huawei.com>
Date: Wed, 15 Apr 2020 03:07:55 -0400
Subject: [PATCH] rsyslog-8.37.0-initialize-variables-and-check-return-value

Signed-off-by: wangshouping <wangshouping@huawei.com>
---
 plugins/imjournal/imjournal.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/plugins/imjournal/imjournal.c b/plugins/imjournal/imjournal.c
index aa27fe7..c5d3d25 100644
--- a/plugins/imjournal/imjournal.c
+++ b/plugins/imjournal/imjournal.c
@@ -386,7 +386,7 @@ readjournal(void)
 
 	struct timeval tv;
 	uint64_t timestamp;
-	uint64_t monotonic_timestamp;
+	uint64_t monotonic_timestamp = 0;
 
 	struct fjson_object *json = NULL;
 	int r;
@@ -396,8 +396,8 @@ readjournal(void)
 	char *sys_iden;
 	char *sys_iden_help = NULL;
 
-	char *t;
-	char *tpmessage;
+	char *t = NULL;
+	char *tpmessage = NULL;
 
 	const void *get;
 	const void *pidget;
@@ -508,13 +508,17 @@ readjournal(void)
 	if (journalGetData("_SOURCE_MONOTONIC_TIMESTAMP", &get, &length) >= 0)
 	{
 	       t = strndup(get+28, length-28);
-	       monotonic_timestamp = atoll(t);
-	       free(t);
+	       if (t != NULL) {
+		       monotonic_timestamp = atoll(t);
+		       free(t);
+	       }
 	       tpmessage = (char *)malloc(strlen(message)+30);
-	       int ret = sprintf(tpmessage,"[%5lu.%06lu] ",monotonic_timestamp/1000000, monotonic_timestamp%1000000);
-	       memcpy(tpmessage+(ret > 30 ? 0 :(ret < 0 ? 0:ret)),message,strlen(message)+1);
-	       enqMsg((uchar *)tpmessage, (uchar *) sys_iden_help, facility, severity, &tv, json, 0);
-	       free(tpmessage);
+	       if (tpmessage != NULL) {
+		       int ret = sprintf(tpmessage,"[%5lu.%06lu] ",monotonic_timestamp/1000000, monotonic_timestamp%1000000);
+		       memcpy(tpmessage+(ret >= 30 ? 0 :(ret < 0 ? 0:ret)),message,strlen(message)+1);
+		       enqMsg((uchar *)tpmessage, (uchar *) sys_iden_help, facility, severity, &tv, json, 0);
+		       free(tpmessage);
+	       }
 	}else
 	       /* submit message */
 	       enqMsg((uchar *)message, (uchar *) sys_iden_help, facility, severity, &tv, json, 0);
-- 
2.27.0