From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Fri, 26 Sep 2025 10:32:51 +0000 (+0000)
Subject: imap-send: be more careful when casting to `curl_off_t`
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=580cf0f2f6d38221fc4c5f17155c311915301a5c;p=thirdparty%2Fgit.git

imap-send: be more careful when casting to `curl_off_t`

When casting a `size_t` to `curl_off_t`, there is a currently uncommon
chance that the value can be cut off (`curl_off_t` is expected to be a
signed 64-bit data type).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---

diff --git a/imap-send.c b/imap-send.c
index 2e812f5a6e..29dc86ff27 100644
--- a/imap-send.c
+++ b/imap-send.c
@@ -1475,7 +1475,7 @@ static int curl_append_msgs_to_imap(struct imap_server_conf *server,
 		lf_to_crlf(&msgbuf.buf);
 
 		curl_easy_setopt(curl, CURLOPT_INFILESIZE_LARGE,
-				 (curl_off_t)(msgbuf.buf.len-prev_len));
+				 cast_size_t_to_curl_off_t(msgbuf.buf.len-prev_len));
 
 		res = curl_easy_perform(curl);