1 /*
2 * Copyright 1998-2023 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 *
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11 #include "internal/e_os.h"
12 #include "crypto/cryptlib.h"
13 #include <openssl/safestack.h>
14
15 #if defined(_WIN32) && !defined(OPENSSL_SYS_UEFI)
16 # include <tchar.h>
17 # include <signal.h>
18 # ifdef __WATCOMC__
19 # if defined(_UNICODE) || defined(__UNICODE__)
20 # define _vsntprintf _vsnwprintf
21 # else
22 # define _vsntprintf _vsnprintf
23 # endif
24 # endif
25 # ifdef _MSC_VER
26 # define alloca _alloca
27 # endif
28
29 # if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
30 # ifdef OPENSSL_SYS_WIN_CORE
31
OPENSSL_isservice(void)32 int OPENSSL_isservice(void)
33 {
34 /* OneCore API cannot interact with GUI */
35 return 1;
36 }
37 # else
OPENSSL_isservice(void)38 int OPENSSL_isservice(void)
39 {
40 HWINSTA h;
41 DWORD len;
42 WCHAR *name;
43 static union {
44 void *p;
45 FARPROC f;
46 } _OPENSSL_isservice = {
47 NULL
48 };
49
50 if (_OPENSSL_isservice.p == NULL) {
51 HANDLE mod = GetModuleHandle(NULL);
52 FARPROC f = NULL;
53
54 if (mod != NULL)
55 f = GetProcAddress(mod, "_OPENSSL_isservice");
56 if (f == NULL)
57 _OPENSSL_isservice.p = (void *)-1;
58 else
59 _OPENSSL_isservice.f = f;
60 }
61
62 if (_OPENSSL_isservice.p != (void *)-1)
63 return (*_OPENSSL_isservice.f) ();
64
65 h = GetProcessWindowStation();
66 if (h == NULL)
67 return -1;
68
69 if (GetUserObjectInformationW(h, UOI_NAME, NULL, 0, &len) ||
70 GetLastError() != ERROR_INSUFFICIENT_BUFFER)
71 return -1;
72
73 if (len > 512)
74 return -1; /* paranoia */
75 len++, len &= ~1; /* paranoia */
76 name = (WCHAR *)alloca(len + sizeof(WCHAR));
77 if (!GetUserObjectInformationW(h, UOI_NAME, name, len, &len))
78 return -1;
79
80 len++, len &= ~1; /* paranoia */
81 name[len / sizeof(WCHAR)] = L'\0'; /* paranoia */
82 # if 1
83 /*
84 * This doesn't cover "interactive" services [working with real
85 * WinSta0's] nor programs started non-interactively by Task Scheduler
86 * [those are working with SAWinSta].
87 */
88 if (wcsstr(name, L"Service-0x"))
89 return 1;
90 # else
91 /* This covers all non-interactive programs such as services. */
92 if (!wcsstr(name, L"WinSta0"))
93 return 1;
94 # endif
95 else
96 return 0;
97 }
98 # endif
99 # else
OPENSSL_isservice(void)100 int OPENSSL_isservice(void)
101 {
102 return 0;
103 }
104 # endif
105
OPENSSL_showfatal(const char * fmta,...)106 void OPENSSL_showfatal(const char *fmta, ...)
107 {
108 va_list ap;
109 TCHAR buf[256];
110 const TCHAR *fmt;
111 /*
112 * First check if it's a console application, in which case the
113 * error message would be printed to standard error.
114 * Windows CE does not have a concept of a console application,
115 * so we need to guard the check.
116 */
117 # ifdef STD_ERROR_HANDLE
118 HANDLE h;
119
120 if ((h = GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
121 GetFileType(h) != FILE_TYPE_UNKNOWN) {
122 /* must be console application */
123 int len;
124 DWORD out;
125
126 va_start(ap, fmta);
127 len = _vsnprintf((char *)buf, sizeof(buf), fmta, ap);
128 WriteFile(h, buf, len < 0 ? sizeof(buf) : (DWORD) len, &out, NULL);
129 va_end(ap);
130 return;
131 }
132 # endif
133
134 if (sizeof(TCHAR) == sizeof(char))
135 fmt = (const TCHAR *)fmta;
136 else
137 do {
138 int keepgoing;
139 size_t len_0 = strlen(fmta) + 1, i;
140 WCHAR *fmtw;
141
142 fmtw = (WCHAR *)alloca(len_0 * sizeof(WCHAR));
143 if (fmtw == NULL) {
144 fmt = (const TCHAR *)L"no stack?";
145 break;
146 }
147 if (!MultiByteToWideChar(CP_ACP, 0, fmta, len_0, fmtw, len_0))
148 for (i = 0; i < len_0; i++)
149 fmtw[i] = (WCHAR)fmta[i];
150 for (i = 0; i < len_0; i++) {
151 if (fmtw[i] == L'%')
152 do {
153 keepgoing = 0;
154 switch (fmtw[i + 1]) {
155 case L'0':
156 case L'1':
157 case L'2':
158 case L'3':
159 case L'4':
160 case L'5':
161 case L'6':
162 case L'7':
163 case L'8':
164 case L'9':
165 case L'.':
166 case L'*':
167 case L'-':
168 i++;
169 keepgoing = 1;
170 break;
171 case L's':
172 fmtw[i + 1] = L'S';
173 break;
174 case L'S':
175 fmtw[i + 1] = L's';
176 break;
177 case L'c':
178 fmtw[i + 1] = L'C';
179 break;
180 case L'C':
181 fmtw[i + 1] = L'c';
182 break;
183 }
184 } while (keepgoing);
185 }
186 fmt = (const TCHAR *)fmtw;
187 } while (0);
188
189 va_start(ap, fmta);
190 _vsntprintf(buf, OSSL_NELEM(buf) - 1, fmt, ap);
191 buf[OSSL_NELEM(buf) - 1] = _T('\0');
192 va_end(ap);
193
194 # if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
195 # ifdef OPENSSL_SYS_WIN_CORE
196 /* ONECORE is always NONGUI and NT >= 0x0601 */
197 # if !defined(NDEBUG)
198 /*
199 * We are in a situation where we tried to report a critical
200 * error and this failed for some reason. As a last resort,
201 * in debug builds, send output to the debugger or any other
202 * tool like DebugView which can monitor the output.
203 */
204 OutputDebugString(buf);
205 # endif
206 # else
207 /* this -------------v--- guards NT-specific calls */
208 if (check_winnt() && OPENSSL_isservice() > 0) {
209 HANDLE hEventLog = RegisterEventSource(NULL, _T("OpenSSL"));
210
211 if (hEventLog != NULL) {
212 const TCHAR *pmsg = buf;
213
214 if (!ReportEvent(hEventLog, EVENTLOG_ERROR_TYPE, 0, 0, NULL,
215 1, 0, &pmsg, NULL)) {
216 # if !defined(NDEBUG)
217 /*
218 * We are in a situation where we tried to report a critical
219 * error and this failed for some reason. As a last resort,
220 * in debug builds, send output to the debugger or any other
221 * tool like DebugView which can monitor the output.
222 */
223 OutputDebugString(pmsg);
224 # endif
225 }
226
227 (void)DeregisterEventSource(hEventLog);
228 }
229 } else {
230 MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONERROR);
231 }
232 # endif
233 # else
234 MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONERROR);
235 # endif
236 }
237 #else
OPENSSL_showfatal(const char * fmta,...)238 void OPENSSL_showfatal(const char *fmta, ...)
239 {
240 #ifndef OPENSSL_NO_STDIO
241 va_list ap;
242
243 va_start(ap, fmta);
244 vfprintf(stderr, fmta, ap);
245 va_end(ap);
246 #endif
247 }
248
OPENSSL_isservice(void)249 int OPENSSL_isservice(void)
250 {
251 return 0;
252 }
253 #endif
254
OPENSSL_die(const char * message,const char * file,int line)255 void OPENSSL_die(const char *message, const char *file, int line)
256 {
257 OPENSSL_showfatal("%s:%d: OpenSSL internal error: %s\n",
258 file, line, message);
259 #if !defined(_WIN32) || defined(OPENSSL_SYS_UEFI)
260 abort();
261 #else
262 /*
263 * Win32 abort() customarily shows a dialog, but we just did that...
264 */
265 # if !defined(_WIN32_WCE)
266 raise(SIGABRT);
267 # endif
268 _exit(3);
269 #endif
270 }
271
272 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
273 /*
274 * Define a VPROC function for HP NonStop build crypto library.
275 * This is used by platform version identification tools.
276 * Do not inline this procedure or make it static.
277 */
278 # define OPENSSL_VPROC_STRING_(x) x##_CRYPTO
279 # define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
280 # define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
OPENSSL_VPROC_FUNC(void)281 void OPENSSL_VPROC_FUNC(void) {}
282 #endif /* __TANDEM */
283
