File 0001-lib-mail-rfc822-parser-Add-asserts-to-make-sure-pars.patch of Package dovecot22.openSUSE_Leap_42.3_Update

From 30dc856f7b97b75b0e0d69f5003d5d99a13249b4 Mon Sep 17 00:00:00 2001
From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Fri, 22 Dec 2017 18:31:52 +0200
Subject: [PATCH 1/7] lib-mail: rfc822-parser - Add asserts to make sure parser
 state is correct

---
 src/lib-mail/rfc822-parser.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/lib-mail/rfc822-parser.c b/src/lib-mail/rfc822-parser.c
index 6dd2254..edb07f5 100644
--- a/src/lib-mail/rfc822-parser.c
+++ b/src/lib-mail/rfc822-parser.c
@@ -211,6 +211,7 @@ int rfc822_parse_quoted_string(struct rfc822_parser_context *ctx, string_t *str)
 	const unsigned char *start;
 	size_t len;
 
+	i_assert(ctx->data < ctx->end);
 	i_assert(*ctx->data == '"');
 	ctx->data++;
 
@@ -313,6 +314,7 @@ rfc822_parse_domain_literal(struct rfc822_parser_context *ctx, string_t *str)
 			     %d94-126        ;  characters not including "[",
 					     ;  "]", or "\"
 	*/
+	i_assert(ctx->data < ctx->end);
 	i_assert(*ctx->data == '[');
 
 	for (start = ctx->data; ctx->data != ctx->end; ctx->data++) {
@@ -338,6 +340,7 @@ int rfc822_parse_domain(struct rfc822_parser_context *ctx, string_t *str)
 	   domain-literal  = [CFWS] "[" *([FWS] dcontent) [FWS] "]" [CFWS]
 	   obs-domain      = atom *("." atom)
 	*/
+	i_assert(ctx->data < ctx->end);
 	i_assert(*ctx->data == '@');
 	ctx->data++;
 
-- 
2.1.4