Don't access line[-1] for a zero-length "line" from fgets.
commit872c930dcb048c1a2b50e6ce881c521dcee15e23
authorJim Meyering <jim@meyering.net>
Fri, 4 Jan 2008 17:37:41 +0000 (4 18:37 +0100)
committerJunio C Hamano <gitster@pobox.com>
Fri, 4 Jan 2008 20:28:58 +0000 (4 12:28 -0800)
treeccb4bc3d4d196327513108e59e3aeb76bfeeddbf
parent95bf4bd4f7280312571e642339f3571310d0d660
Don't access line[-1] for a zero-length "line" from fgets.

A NUL byte at beginning of file, or just after a newline
would provoke an invalid buf[-1] access in a few places.

* builtin-grep.c (cmd_grep): Don't access buf[-1].
* builtin-pack-objects.c (get_object_list): Likewise.
* builtin-rev-list.c (read_revisions_from_stdin): Likewise.
* bundle.c (read_bundle_header): Likewise.
* server-info.c (read_pack_info_file): Likewise.
* transport.c (insert_packed_refs): Likewise.

Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
builtin-grep.c
builtin-pack-objects.c
builtin-rev-list.c
bundle.c
server-info.c
transport.c