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

diff --git a/src/lib-imap/imap-parser.c b/src/lib-imap/imap-parser.c
index 2deb75f5fba4943f6f22aac3746fdf89706b6e2a..933dd9c5024dd9882100d91913d38525cb62905f 100644 (file)
--- 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;