From: Marco Bettini <marco.bettini@open-xchange.com>
Date: Mon, 4 Jul 2022 09:51:01 +0000 (+0000)
Subject: lib-imap: is_valid_atom_char() - Fix implicit conversion from unsigned to signed... 
X-Git-Tag: 2.4.0~3808
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ee74279cc5e1ede73d945f35ae65a34db25941b;p=thirdparty%2Fdovecot%2Fcore.git

lib-imap: is_valid_atom_char() - Fix implicit conversion from unsigned to signed char
---

diff --git a/src/lib-imap/imap-parser.c b/src/lib-imap/imap-parser.c
index 2deb75f5fb..933dd9c502 100644
--- a/src/lib-imap/imap-parser.c
+++ b/src/lib-imap/imap-parser.c
@@ -299,13 +299,13 @@ static void imap_parser_save_arg(struct imap_parser *parser,
 	parser->cur_type = ARG_PARSE_NONE;
 }
 
-static bool is_valid_atom_char(struct imap_parser *parser, char chr)
+static bool is_valid_atom_char(struct imap_parser *parser, unsigned char chr)
 {
 	const char *error_msg;
 
-	if (IS_ATOM_PARSER_INPUT((unsigned char)chr))
+	if (IS_ATOM_PARSER_INPUT(chr))
 		error_msg = "Invalid characters in atom";
-	else if ((((unsigned char)chr) & 0x80) != 0)
+	else if ((chr & 0x80) != 0)
 		error_msg = "8bit data in atom";
 	else
 		return TRUE;