libvirt-qemu: Don't allow NULL cmd in virDomainQemuMonitorCommandWithFiles()

Nothing in daemon code is prepared for the command in
virDomainQemuMonitorCommandWithFiles() to be NULL. In fact, the
client side doesn't expect this either as our RPC describes the
argument as:

    remote_nonnull_string cmd;

Validate the argument in the public API implementation.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

diff --git a/src/libvirt-qemu.c b/src/libvirt-qemu.c
index 9e80577b56843fdf47e4fabac4294925fb43b9d9..c4f71c0311ecb866ce34535ff8b2e70d2c3a3ceb 100644 (file)
--- a/src/libvirt-qemu.c
+++ b/src/libvirt-qemu.c
@@ -153,6 +153,8 @@ virDomainQemuMonitorCommandWithFiles(virDomainPtr domain,
     virCheckDomainReturn(domain, -1);
     conn = domain->conn;
 
+    virCheckNonNullArgGoto(cmd, error);
+
     if (ninfiles > 0 || outfiles) {
         int rc;
         if ((rc = VIR_DRV_SUPPORTS_FEATURE(conn->driver, conn,