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/* Copyright 2000-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "apr_portable.h"
#include "apr_strings.h"
#include "apr_arch_dso.h"
#include <errno.h>
#include <string.h>
#if APR_HAS_DSO
APR_DECLARE(apr_status_t) apr_os_dso_handle_put(apr_dso_handle_t **aprdso,
apr_os_dso_handle_t osdso,
apr_pool_t *pool)
{
*aprdso = apr_pcalloc(pool, sizeof **aprdso);
(*aprdso)->handle = osdso;
(*aprdso)->pool = pool;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_os_dso_handle_get(apr_os_dso_handle_t *osdso,
apr_dso_handle_t *aprdso)
{
*osdso = aprdso->handle;
return APR_SUCCESS;
}
static apr_status_t dso_cleanup(void *thedso)
{
apr_dso_handle_t *dso = thedso;
int rc;
if (dso->handle == 0)
return APR_SUCCESS;
rc = dllfree(dso->handle);
if (rc == 0) {
dso->handle = 0;
return APR_SUCCESS;
}
dso->failing_errno = errno;
return errno;
}
APR_DECLARE(apr_status_t) apr_dso_load(apr_dso_handle_t **res_handle,
const char *path, apr_pool_t *ctx)
{
dllhandle *handle;
int rc;
*res_handle = apr_pcalloc(ctx, sizeof(*res_handle));
(*res_handle)->pool = ctx;
if ((handle = dllload(path)) != NULL) {
(*res_handle)->handle = handle;
apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null);
return APR_SUCCESS;
}
(*res_handle)->failing_errno = errno;
return errno;
}
APR_DECLARE(apr_status_t) apr_dso_unload(apr_dso_handle_t *handle)
{
return apr_pool_cleanup_run(handle->pool, 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)
{
void *func_ptr;
void *var_ptr;
if ((var_ptr = dllqueryvar(handle->handle, symname)) != NULL) {
*ressym = var_ptr;
return APR_SUCCESS;
}
if ((func_ptr = (void *)dllqueryfn(handle->handle, symname)) != NULL) {
*ressym = func_ptr;
return APR_SUCCESS;
}
handle->failing_errno = errno;
return errno;
}
APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *handle, char *buffer,
apr_size_t buflen)
{
apr_cpystrn(buffer, strerror(handle->failing_errno), buflen);
return buffer;
}
#endif
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