[Libguestfs] [PATCH] daemon/rpm-c.c: Disable signature checking in librpm

[Richard W.M. Jones]

Older distros (eg RHEL 6) used SHA-1 signatures which some newer
distros now prevent us from verifying.  Since verifying package
signatures is not essential for inspection, switch the feature off in
librpm.

Reported-by: Xiaodai Wang
Thanks: Panu Matilainen
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2064182
Signed-off-by: Richard W.M. Jones <rjones at redhat.com>
---
 daemon/rpm-c.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/daemon/rpm-c.c b/daemon/rpm-c.c
index be0e81e22..f6a7067e1 100644
--- a/daemon/rpm-c.c
+++ b/daemon/rpm-c.c
@@ -89,8 +89,15 @@ static rpmdbMatchIterator iter;
 value
 guestfs_int_daemon_rpm_start_iterator (value unitv)
 {
+  rpmVSFlags oflags;
+
   CAMLparam1 (unitv);
   ts = rpmtsCreate ();
+
+  /* Disable signature checking (RHBZ#2064182). */
+  oflags = rpmtsVSFlags (ts);
+  rpmtsSetVSFlags (ts, oflags | RPMVSF_MASK_NOSIGNATURES);
+
   iter = rpmtsInitIterator (ts, RPMDBI_PACKAGES, NULL, 0);
   CAMLreturn (Val_unit);
 }
-- 
2.31.1