From ed0dd5a474117f337baecb2c5210ec464d120696 Mon Sep 17 00:00:00 2001
From: Marius Bakke <mbakke@fastmail.com>
Date: Mon, 30 Oct 2017 00:09:11 +0100
Subject: imlib: Look up CA certificates by $CURL_CA_BUNDLE.

Similar to the `curl` command-line tool.
---
 src/imlib.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/imlib.c b/src/imlib.c
index dfb79aa..82a9865 100644
--- a/src/imlib.c
+++ b/src/imlib.c
@@ -429,6 +429,10 @@ static char *feh_http_load_image(char *url)
 			if (opt.insecure_ssl) {
 				curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
 				curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0);
+			} else {
+				// Allow the user to specify custom CA certificates.
+				curl_easy_setopt(curl, CURLOPT_CAINFO,
+						getenv("CURL_CA_BUNDLE"));
 			}
 
 			res = curl_easy_perform(curl);
-- 
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