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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_private.h"
#include "apr_general.h"
#include "apr_pools.h"
#include "apr_signal.h"
#include "ShellAPI.h"
#include "apr_arch_misc.h" /* for WSAHighByte / WSALowByte */
#include "wchar.h"
#include "apr_arch_file_io.h"
#include "crtdbg.h"
#include "assert.h"
/* This symbol is _private_, although it must be exported.
*/
int APR_DECLARE_DATA apr_app_init_complete = 0;
/* Used by apr_app_initialize to reprocess the environment
*
* An internal apr function to convert a double-null terminated set
* of single-null terminated strings from wide Unicode to narrow utf-8
* as a list of strings. These are allocated from the MSVCRT's
* _CRT_BLOCK to trick the system into trusting our store.
*/
static int warrsztoastr(const char * const * *retarr,
const wchar_t * arrsz, int args)
{
const apr_wchar_t *wch;
apr_size_t totlen;
apr_size_t newlen;
apr_size_t wsize;
char **newarr;
int arg;
if (args < 0) {
for (args = 1, wch = arrsz; wch[0] || wch[1]; ++wch)
if (!*wch)
++args;
}
wsize = 1 + wch - arrsz;
newarr = _malloc_dbg((args + 1) * sizeof(char *),
_CRT_BLOCK, __FILE__, __LINE__);
/* This is a safe max allocation, we will realloc after
* processing and return the excess to the free store.
* 3 ucs bytes hold any single wchar_t value (16 bits)
* 4 ucs bytes will hold a wchar_t pair value (20 bits)
*/
newlen = totlen = wsize * 3 + 1;
newarr[0] = _malloc_dbg(newlen * sizeof(char),
_CRT_BLOCK, __FILE__, __LINE__);
(void)apr_conv_ucs2_to_utf8(arrsz, &wsize,
newarr[0], &newlen);
assert(newlen && !wsize);
/* Return to the free store if the heap realloc is the least bit optimized
*/
newarr[0] = _realloc_dbg(newarr[0], totlen - newlen,
_CRT_BLOCK, __FILE__, __LINE__);
for (arg = 1; arg < args; ++arg) {
newarr[arg] = newarr[arg - 1] + 2;
while (*(newarr[arg]++)) {
/* continue */;
}
}
newarr[arg] = NULL;
*retarr = newarr;
return args;
}
/* Reprocess the arguments to main() for a completely apr-ized application
*/
APR_DECLARE(apr_status_t) apr_app_initialize(int *argc,
const char * const * *argv,
const char * const * *env)
{
apr_status_t rv = apr_initialize();
if (rv != APR_SUCCESS) {
return rv;
}
#if APR_HAS_UNICODE_FS
IF_WIN_OS_IS_UNICODE
{
apr_wchar_t **wstrs;
apr_wchar_t *sysstr;
int wstrc;
int dupenv;
if (apr_app_init_complete) {
return rv;
}
apr_app_init_complete = 1;
sysstr = GetCommandLineW();
if (sysstr) {
wstrs = CommandLineToArgvW(sysstr, &wstrc);
if (wstrs) {
*argc = apr_wastrtoastr(argv, wstrs, wstrc);
GlobalFree(wstrs);
}
}
sysstr = GetEnvironmentStringsW();
dupenv = warrsztoastr(&_environ, sysstr, -1);
if (env) {
*env = _malloc_dbg((dupenv + 1) * sizeof (char *),
_CRT_BLOCK, __FILE__, __LINE__ );
memcpy((void*)*env, _environ, (dupenv + 1) * sizeof (char *));
}
else {
}
FreeEnvironmentStringsW(sysstr);
/* MSVCRT will attempt to maintain the wide environment calls
* on _putenv(), which is bogus if we've passed a non-ascii
* string to _putenv(), since they use MultiByteToWideChar
* and breaking the implicit utf-8 assumption we've built.
*
* Reset _wenviron for good measure.
*/
if (_wenviron) {
apr_wchar_t **wenv = _wenviron;
_wenviron = NULL;
free(wenv);
}
}
#endif
return rv;
}
static int initialized = 0;
/* Provide to win32/thread.c */
extern DWORD tls_apr_thread;
APR_DECLARE(apr_status_t) apr_initialize(void)
{
apr_pool_t *pool;
apr_status_t status;
int iVersionRequested;
WSADATA wsaData;
int err;
apr_oslevel_e osver;
if (initialized++) {
return APR_SUCCESS;
}
/* Initialize apr_os_level global */
if (apr_get_oslevel(&osver) != APR_SUCCESS) {
return APR_EEXIST;
}
tls_apr_thread = TlsAlloc();
if ((status = apr_pool_initialize()) != APR_SUCCESS)
return status;
if (apr_pool_create(&pool, NULL) != APR_SUCCESS) {
return APR_ENOPOOL;
}
apr_pool_tag(pool, "apr_initialize");
iVersionRequested = MAKEWORD(WSAHighByte, WSALowByte);
err = WSAStartup((WORD) iVersionRequested, &wsaData);
if (err) {
return err;
}
if (LOBYTE(wsaData.wVersion) != WSAHighByte ||
HIBYTE(wsaData.wVersion) != WSALowByte) {
WSACleanup();
return APR_EEXIST;
}
apr_signal_init(pool);
return APR_SUCCESS;
}
APR_DECLARE_NONSTD(void) apr_terminate(void)
{
initialized--;
if (initialized) {
return;
}
apr_pool_terminate();
WSACleanup();
TlsFree(tls_apr_thread);
}
APR_DECLARE(void) apr_terminate2(void)
{
apr_terminate();
}
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