1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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" /* bring in unicode-ness */
#include "apr_arch_threadproc.h" /* bring in apr_threadproc_init */
#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)
{
const apr_wchar_t *wch;
apr_size_t totlen;
apr_size_t newlen;
apr_size_t wsize;
char **env;
char *pstrs;
char *strs;
int arg, args;
for (args = 1, wch = arrsz; wch[0] || wch[1]; ++wch)
if (!*wch)
++args;
wsize = 1 + wch - arrsz;
/* This is a safe max allocation, we will alloc each
* string exactly after processing and return this
* temporary buffer to the free store.
* 3 utf-8 bytes hold any single utf-16 value (16 bits)
* 4 utf-8 bytes will hold a 2 word utf-16 surrogate pair value (20 bits)
*/
newlen = totlen = wsize * 3 + 1;
pstrs = strs = apr_malloc_dbg(newlen * sizeof(char),
__FILE__, __LINE__);
(void)apr_conv_utf16_to_utf8(arrsz, &wsize, strs, &newlen);
assert(newlen && !wsize);
*retarr = env = apr_malloc_dbg((args + 1) * sizeof(char*),
__FILE__, __LINE__);
for (arg = 0; arg < args; ++arg) {
char* p = pstrs;
int len = 0;
while (*p++)
++len;
len += 1;
*env = apr_malloc_dbg(len * sizeof(char),
__FILE__, __LINE__);
memcpy(*env, pstrs, len * sizeof(char));
pstrs += len;
++env;
}
*env = NULL;
free(strs);
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_wchar_t **wstrs;
apr_wchar_t *sysstr;
int wstrc;
int dupenv;
apr_status_t rv = apr_initialize();
if (rv != APR_SUCCESS) {
return rv;
}
if (apr_app_init_complete) {
return rv;
}
apr_app_init_complete = 1;
sysstr = GetCommandLineW();
if (sysstr) {
wstrs = apr_winapi_CommandLineToArgvW(sysstr, &wstrc);
if (wstrs) {
*argc = apr_wastrtoastr(argv, wstrs, wstrc);
LocalFree(wstrs);
}
}
sysstr = GetEnvironmentStringsW();
dupenv = warrsztoastr(&_environ, sysstr);
if (env) {
*env = apr_malloc_dbg((dupenv + 1) * sizeof (char *),
__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);
}
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);
apr_threadproc_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();
}
|
