Commit 97f40a0d5c100cacbeea113445a79a6622d1325a
2011-08-04T22:51:46
Check for error calculating the delta base Don't assume that it's always going to work. Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
diff --git a/src/pack.c b/src/pack.c
index f7bad2f..c84f007 100644
--- a/src/pack.c
+++ b/src/pack.c
@@ -298,6 +298,8 @@ static int packfile_unpack_delta(
base_offset = get_delta_base(p, w_curs, curpos, delta_type, obj_offset);
if (base_offset == 0)
return git__throw(GIT_EOBJCORRUPTED, "Delta offset is zero");
+ if (base_offset < 0)
+ return git__rethrow(base_offset, "Failed to get delta base");
git_mwindow_close(w_curs);
error = git_packfile_unpack(&base, p, &base_offset);