Comment 16 for bug 1671570

@Ben, sorry about forgetting to mention the libraries, glad you could figure it out.

Thanks for checking. I think the problem is actually the wrong thing is being scanned (type vs handle).
 Can you give one more run at this one:

#include <smbios_c/smbios.h>
#include <glib/gstdio.h>

struct smbios_struct
{
    u8 type;
    u8 length;
    u16 handle;
};

int main(void)
{
        guint8 dell_supported = 0;
        struct smbios_struct *de_table;

        de_table = smbios_get_next_struct_by_handle (0, 0xDE00);
        if (!de_table)
                g_print("invalid table address\n");
        else
                g_print("de_table: %d %d %d\n", de_table->type, de_table->length, de_table->handle);
        smbios_struct_get_data (de_table, &(dell_supported), 0x00, sizeof(guint8));

        if (dell_supported != 0xDE)
                g_print("not supported, dell supported != de\n");
        else
                g_print("supported\n");
}