Ignore empty CPU vendor string when checking hypervisor.

This should work around an issue filed in the Ubuntu tracker that says
our code is not detecting a VM running in Server 2.0.

Signed-off-by: Marcelo Vanzin <mvanzin@vmware.com>

diff --git a/open-vm-tools/lib/vmCheck/vmcheck.c b/open-vm-tools/lib/vmCheck/vmcheck.c
index 975446be97af578a1a2e0047e3473457abfef55d..3e34b1faebef5fcdf4ebaffb3bf6305dfc9f5427 100644 (file)
--- a/open-vm-tools/lib/vmCheck/vmcheck.c
+++ b/open-vm-tools/lib/vmCheck/vmcheck.c
@@ -258,6 +258,7 @@ VmCheck_IsVirtualWorld(void)
 
    hypervisorSig = Hostinfo_HypervisorCPUIDSig();
    if (hypervisorSig != NULL &&
+       *hypervisorSig != '\0' &&
        strcmp(hypervisorSig, CPUID_VMWARE_HYPERVISOR_VENDOR_STRING) != 0) {
       free(hypervisorSig);
       Debug("%s: detected non-VMware hypervisor (%s).\n",