From 8eb6a329d63022cc2a9b7660e79d46da1c3c3621 Mon Sep 17 00:00:00 2001
From: Naveen Albert <asterisk@phreaknet.org>
Date: Thu, 14 Dec 2023 09:43:14 -0500
Subject: [PATCH] res_calendar_icalendar: Print iCalendar error on parsing
 failure.

If libical fails to parse a calendar, print the error message it provdes.

Resolves: #492
---
 res/res_calendar_icalendar.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/res/res_calendar_icalendar.c b/res/res_calendar_icalendar.c
index 29be671d35..95790e5d08 100644
--- a/res/res_calendar_icalendar.c
+++ b/res/res_calendar_icalendar.c
@@ -155,6 +155,10 @@ static icalcomponent *fetch_icalendar(struct icalendar_pvt *pvt)
 
 	if (!ast_strlen_zero(ast_str_buffer(response))) {
 		comp = icalparser_parse_string(ast_str_buffer(response));
+		if (!comp) {
+			ast_debug(3, "iCalendar response data: %s\n", ast_str_buffer(response));
+			ast_log(LOG_WARNING, "Failed to parse iCalendar data: %s\n", icalerror_perror());
+		}
 	}
 	ast_free(response);