dso.c

Apache V2.0.15 Alpha For Linuxhttpd-2_0_15-alpha.tar.Z

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#include "dso.h"
#include "apr_strings.h"
#include <stdio.h>
#include <string.h>

#if APR_HAS_DSO

static apr_status_t dso_cleanup(void *thedso)
{
    apr_dso_handle_t *dso = thedso;
    int rc;

    if (dso->handle == 0)
        return APR_SUCCESS;
       
    rc = DosFreeModule(dso->handle);

    if (rc == 0)
        dso->handle = 0;

    return APR_OS2_STATUS(rc);
}


APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle, const char *path, apr_pool_t *ctx)
{
    char failed_module[200];
    HMODULE handle;
    int rc;

    *res_handle = apr_pcalloc(ctx, sizeof(**res_handle));
    (*res_handle)->cont = ctx;
    (*res_handle)->load_error = APR_SUCCESS;
    (*res_handle)->failed_module = NULL;

    if ((rc = DosLoadModule(failed_module, sizeof(failed_module), path, &handle)) != 0) {
        (*res_handle)->load_error = APR_OS2_STATUS(rc);
        (*res_handle)->failed_module = apr_pstrdup(ctx, failed_module);
        return APR_OS2_STATUS(rc);
    }

    (*res_handle)->handle  = handle;
    apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null);
    return APR_SUCCESS;
}



APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle)
{
    return apr_pool_cleanup_run(handle->cont, handle, dso_cleanup);
}



APR_DECLARE(apr_status_t) apr_dso_sym(apr_dso_handle_sym_t *ressym, 
                                      apr_dso_handle_t *handle, 
                                      const char *symname)
{
    PFN func;
    int rc;

    if (symname == NULL || ressym == NULL)
        return APR_EINIT;

    if ((rc = DosQueryProcAddr(handle->handle, 0, symname, &func)) != 0)
        return APR_EINIT;

    *ressym = func;
    return APR_SUCCESS;
}



APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buffer, apr_size_t buflen)
{
    char message[200];
    apr_strerror(dso->load_error, message, sizeof(message));
    strcat(message, " (");
    strcat(message, dso->failed_module);
    strcat(message, ")");
    apr_cpystrn(buffer, message, buflen);
    return buffer;
}

#endif