From: Dmitry Bogatov <kact...@gnu.org>
Before this patch, if +inbox is empty, following error happened:
$ inc -file - < /dev/null
Incorporating new mail into inbox...
inc: no messages incorporated, continuing...
inc: Bug: message out of bounds
This happened due improper call to `seq_setunseen', which implicitly
assumed that there is at least one message (it does not handle case
where both mp->hghmsg and mh->lowmsg are 0).
Bug does not happens with command `inc -file empty', since file
is checked for being empty before any read attempts.
Signed-off-by: Dmitry Bogatov <kact...@gnu.org>
---
sbr/seq_setunseen.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sbr/seq_setunseen.c b/sbr/seq_setunseen.c
index d833650..bd57a2c 100644
--- a/sbr/seq_setunseen.c
+++ b/sbr/seq_setunseen.c
@@ -23,6 +23,10 @@ seq_setunseen(struct msgs *mp, int doadd)
int n;
char **ap, *cp, *dp;
+ if (mp->lowmsg == 0) {
+ return;
+ }
+
/*
** Get the list of sequences for Unseen-Sequence
** and split them.
--
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