From 97e28f09edc56842f3ab34f3fc6b5bbd1d1902dd Mon Sep 17 00:00:00 2001
From: Azat Khuzhin <azat@libevent.org>
Date: Thu, 25 Jun 2020 09:08:31 +0300
Subject: [PATCH] Check error code of evhttp_add_header_internal() in
 evhttp_parse_query_impl()

(cherry picked from commit 4528d8e98781be794cbce13394f8442dd466684b)
---
 http.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/http.c b/http.c
index 4165de9d..04f089bc 100644
--- a/http.c
+++ b/http.c
@@ -3286,6 +3286,7 @@ evhttp_parse_query_impl(const char *str, struct evkeyvalq *headers,
 	p = argument = line;
 	while (p != NULL && *p != '\0') {
 		char *key, *value, *decoded_value;
+		int err;
 		argument = strsep(&p, "&");
 
 		value = argument;
@@ -3301,8 +3302,10 @@ evhttp_parse_query_impl(const char *str, struct evkeyvalq *headers,
 		evhttp_decode_uri_internal(value, strlen(value),
 		    decoded_value, 1 /*always_decode_plus*/);
 		event_debug(("Query Param: %s -> %s\n", key, decoded_value));
-		evhttp_add_header_internal(headers, key, decoded_value);
+		err = evhttp_add_header_internal(headers, key, decoded_value);
 		mm_free(decoded_value);
+		if (err)
+			goto error;
 	}
 
 	result = 0;