plugins/check-xor.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>

#include "mysqlfs-plugin.h"
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <mysqlfs.h>

int main(int argc, char **argv)
{
    void *handle;
    void *(*bufferfilter)(unsigned char, unsigned char, unsigned char);
    mysqlfs_plugin *filterentries;
    char *error;
    unsigned char ver[] = {0, 0, 0};

    handle = dlopen ("dummy-xor.so", RTLD_LAZY);
    if (!handle)
    {
        fprintf (stderr, "%s\n", dlerror());
        exit(1);
    }

    dlerror();    /* Clear any existing error */

    bufferfilter = dlsym(handle, "mysqlfs_init");
    if (NULL != (error = dlerror()))
    {
        fprintf (stderr, "%s\n", error);
        exit(1);
    }

    if (NULL == bufferfilter)
    {
        fprintf (stderr, "NULL bufferfilter\n");
        exit(1);
    }

    /* grab the version data */
    {
        int i;
        char *a = strdup (VERSION);
        char *v;
        if (NULL != a)
        {
            v = strtok (a, ".");

            for (i = 0; NULL != v && i < (sizeof(ver)/sizeof(ver[0])); i++)
            {
                ver[i] = atoi(v);
                v = strtok (NULL, ".");
            }
            free (a);
        }
    }
        
    if (NULL == (filterentries = bufferfilter(ver[0], ver[1], ver[2])))
    {
        fprintf (stderr, "NULL jump points\n");
        exit(1);
    }

    if (NULL == filterentries->identity)
    {
        fprintf (stderr, "NULL identity function\n");
        exit(1);
    }

    if (NULL != filterentries->setblocksize)
        filterentries->setblocksize(DATA_BLOCK_SIZE);
    printf ("OK (%s) %s\n", VERSION, filterentries->identity());
    dlclose(handle);
    return 0;
}

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