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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
#include "dso.h"
#include "apr_strings.h"
#include "apr_private.h"
#include "fileio.h"
#include "i18n.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)->cont = pool;
return APR_SUCCESS;
}
static apr_status_t dso_cleanup(void *thedso)
{
apr_dso_handle_t *dso = thedso;
if (dso->handle != NULL && !FreeLibrary(dso->handle)) {
return apr_get_os_error();
}
dso->handle = NULL;
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_dso_load(struct apr_dso_handle_t **res_handle,
const char *path, apr_pool_t *ctx)
{
HINSTANCE os_handle;
apr_status_t rv;
#ifndef _WIN32_WCE
UINT em;
#endif
#if APR_HAS_UNICODE_FS
IF_WIN_OS_IS_UNICODE
{
apr_wchar_t wpath[APR_PATH_MAX];
if ((rv = utf8_to_unicode_path(wpath, sizeof(wpath)
/ sizeof(apr_wchar_t), path))
!= APR_SUCCESS) {
*res_handle = apr_pcalloc(ctx, sizeof(**res_handle));
return ((*res_handle)->load_error = rv);
}
/* Prevent ugly popups from killing our app */
#ifndef _WIN32_WCE
em = SetErrorMode(SEM_FAILCRITICALERRORS);
#endif
os_handle = LoadLibraryExW(wpath, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
if (!os_handle)
os_handle = LoadLibraryExW(wpath, NULL, 0);
if (!os_handle)
rv = apr_get_os_error();
#ifndef _WIN32_WCE
SetErrorMode(em);
#endif
}
#endif /* APR_HAS_UNICODE_FS */
#if APR_HAS_ANSI_FS
ELSE_WIN_OS_IS_ANSI
{
char fspec[APR_PATH_MAX], *p = fspec;
/* Must convert path from / to \ notation.
* Per PR2555, the LoadLibraryEx function is very picky about slashes.
* Debugging on NT 4 SP 6a reveals First Chance Exception within NTDLL.
* LoadLibrary in the MS PSDK also reveals that it -explicitly- states
* that backslashes must be used for the LoadLibrary family of calls.
*/
apr_cpystrn(fspec, path, sizeof(fspec));
while ((p = strchr(p, '/')) != NULL)
*p = '\\';
/* Prevent ugly popups from killing our app */
em = SetErrorMode(SEM_FAILCRITICALERRORS);
os_handle = LoadLibraryEx(path, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
if (!os_handle)
os_handle = LoadLibraryEx(path, NULL, 0);
if (!os_handle)
rv = apr_get_os_error();
else
rv = APR_SUCCESS;
SetErrorMode(em);
}
#endif
*res_handle = apr_pcalloc(ctx, sizeof(**res_handle));
(*res_handle)->cont = ctx;
if (rv) {
return ((*res_handle)->load_error = rv);
}
(*res_handle)->handle = (void*)os_handle;
(*res_handle)->load_error = APR_SUCCESS;
apr_pool_cleanup_register(ctx, *res_handle, dso_cleanup, apr_pool_cleanup_null);
return APR_SUCCESS;
}
APR_DECLARE(apr_status_t) apr_dso_unload(struct 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,
struct apr_dso_handle_t *handle,
const char *symname)
{
#ifdef _WIN32_WCE
apr_size_t symlen = strlen(symname) + 1;
apr_size_t wsymlen = 256;
apr_wchar_t wsymname[256];
apr_status_t rv;
rv = apr_conv_utf8_to_ucs2(wsymname, &wsymlen, symname, &symlen);
if (rv != APR_SUCCESS) {
return rv;
}
else if (symlen) {
return APR_ENAMETOOLONG;
}
*ressym = (apr_dso_handle_sym_t)GetProcAddressW(handle->handle, wsymname);
#else
*ressym = (apr_dso_handle_sym_t)GetProcAddress(handle->handle, symname);
#endif
if (!*ressym) {
return apr_get_os_error();
}
return APR_SUCCESS;
}
APR_DECLARE(const char *) apr_dso_error(apr_dso_handle_t *dso, char *buf, apr_size_t bufsize)
{
return apr_strerror(dso->load_error, buf, bufsize);
}
#endif
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