dovecot-1.2: file istream: If trying to seek backwards in unseek...
dovecot at dovecot.org
dovecot at dovecot.org
Sun Feb 28 16:21:27 EET 2010
details: http://hg.dovecot.org/dovecot-1.2/rev/578dcf893777
changeset: 9547:578dcf893777
user: Timo Sirainen <tss at iki.fi>
date: Sun Feb 28 13:38:43 2010 +0200
description:
file istream: If trying to seek backwards in unseekable stream, panic.
The previous way of just setting an error flag was getting ignored too
easily and causing silent corruption in such situations.
diffstat:
src/lib/istream-file.c | 6 ++----
1 files changed, 2 insertions(+), 4 deletions(-)
diffs (16 lines):
diff -r 6c9f2ed821df -r 578dcf893777 src/lib/istream-file.c
--- a/src/lib/istream-file.c Sun Feb 28 16:20:46 2010 +0200
+++ b/src/lib/istream-file.c Sun Feb 28 13:38:43 2010 +0200
@@ -110,10 +110,8 @@
struct file_istream *fstream = (struct file_istream *) stream;
if (!stream->istream.seekable) {
- if (v_offset < stream->istream.v_offset) {
- stream->istream.stream_errno = ESPIPE;
- return;
- }
+ if (v_offset < stream->istream.v_offset)
+ i_panic("stream doesn't support seeking backwards");
fstream->skip_left += v_offset - stream->istream.v_offset;
}
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