From de00c08f8a815b3c905b9dc243c68a6cfbc37a6c Mon Sep 17 00:00:00 2001
From: Takahiro Yamashita <nokute78@gmail.com>
Date: Sun, 17 Sep 2023 09:36:03 +0900
Subject: [PATCH] uri: not allow negative pos

Signed-off-by: Takahiro Yamashita <nokute78@gmail.com>
---
 src/flb_uri.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/flb_uri.c b/src/flb_uri.c
index af6d042a92b..48a8b0d8867 100644
--- a/src/flb_uri.c
+++ b/src/flb_uri.c
@@ -71,6 +71,11 @@ flb_sds_t flb_uri_encode(const char *uri, size_t len)
 /* Retrieve a given field based on it expected position in the URI */
 struct flb_uri_field *flb_uri_get(struct flb_uri *uri, int pos)
 {
+    if (pos < 0) {
+        flb_trace("[uri] negative pos");
+        return NULL;
+    }
+
     if (pos >= FLB_URI_MAX || pos > uri->count) {
         flb_trace("[uri] requested position > FLB_URI_MAX");
         return NULL;