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) || GetLastError() != ERROR_INSUFFICIENT_BUFFER)
70 return -1;
71
72 if (len > 512)
73 return -1; /* paranoia */
74 len++, len &= ~1; /* paranoia */
75 name = (WCHAR *)alloca(len + sizeof(WCHAR));
76 if (!GetUserObjectInformationW(h, UOI_NAME, name, len, &len))
77 return -1;
78
79 len++, len &= ~1; /* paranoia */
80 name[len / sizeof(WCHAR)] = L'\0'; /* paranoia */
81 #if 1
82 /*
83 * This doesn't cover "interactive" services [working with real
84 * WinSta0's] nor programs started non-interactively by Task Scheduler
85 * [those are working with SAWinSta].
86 */
87 if (wcsstr(name, L"Service-0x"))
88 return 1;
89 #else
90 /* This covers all non-interactive programs such as services. */
91 if (!wcsstr(name, L"WinSta0"))
92 return 1;
93 #endif
94 else
95 return 0;
96 }
97 #endif
98 #else
OPENSSL_isservice(void)99 int OPENSSL_isservice(void)
100 {
101 return 0;
102 }
103 #endif
104
OPENSSL_showfatal(const char * fmta,...)105 void OPENSSL_showfatal(const char *fmta, ...)
106 {
107 va_list ap;
108 TCHAR buf[256];
109 const TCHAR *fmt;
110 /*
111 * First check if it's a console application, in which case the
112 * error message would be printed to standard error.
113 * Windows CE does not have a concept of a console application,
114 * so we need to guard the check.
115 */
116 #ifdef STD_ERROR_HANDLE
117 HANDLE h;
118
119 if ((h = GetStdHandle(STD_ERROR_HANDLE)) != NULL && GetFileType(h) != FILE_TYPE_UNKNOWN) {
120 /* must be console application */
121 int len;
122 DWORD out;
123
124 va_start(ap, fmta);
125 len = _vsnprintf((char *)buf, sizeof(buf), fmta, ap);
126 WriteFile(h, buf, len < 0 ? sizeof(buf) : (DWORD)len, &out, NULL);
127 va_end(ap);
128 return;
129 }
130 #endif
131
132 if (sizeof(TCHAR) == sizeof(char))
133 fmt = (const TCHAR *)fmta;
134 else
135 do {
136 int keepgoing;
137 size_t len_0 = strlen(fmta) + 1, i;
138 WCHAR *fmtw;
139
140 fmtw = (WCHAR *)alloca(len_0 * sizeof(WCHAR));
141 if (fmtw == NULL) {
142 fmt = (const TCHAR *)L"no stack?";
143 break;
144 }
145 if (!MultiByteToWideChar(CP_ACP, 0, fmta, len_0, fmtw, len_0))
146 for (i = 0; i < len_0; i++)
147 fmtw[i] = (WCHAR)fmta[i];
148 for (i = 0; i < len_0; i++) {
149 if (fmtw[i] == L'%')
150 do {
151 keepgoing = 0;
152 switch (fmtw[i + 1]) {
153 case L'0':
154 case L'1':
155 case L'2':
156 case L'3':
157 case L'4':
158 case L'5':
159 case L'6':
160 case L'7':
161 case L'8':
162 case L'9':
163 case L'.':
164 case L'*':
165 case L'-':
166 i++;
167 keepgoing = 1;
168 break;
169 case L's':
170 fmtw[i + 1] = L'S';
171 break;
172 case L'S':
173 fmtw[i + 1] = L's';
174 break;
175 case L'c':
176 fmtw[i + 1] = L'C';
177 break;
178 case L'C':
179 fmtw[i + 1] = L'c';
180 break;
181 }
182 } while (keepgoing);
183 }
184 fmt = (const TCHAR *)fmtw;
185 } while (0);
186
187 va_start(ap, fmta);
188 _vsntprintf(buf, OSSL_NELEM(buf) - 1, fmt, ap);
189 buf[OSSL_NELEM(buf) - 1] = _T('\0');
190 va_end(ap);
191
192 #if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0333
193 #ifdef OPENSSL_SYS_WIN_CORE
194 /* ONECORE is always NONGUI and NT >= 0x0601 */
195 #if !defined(NDEBUG)
196 /*
197 * We are in a situation where we tried to report a critical
198 * error and this failed for some reason. As a last resort,
199 * in debug builds, send output to the debugger or any other
200 * tool like DebugView which can monitor the output.
201 */
202 OutputDebugString(buf);
203 #endif
204 #else
205 /* this -------------v--- guards NT-specific calls */
206 if (check_winnt() && OPENSSL_isservice() > 0) {
207 HANDLE hEventLog = RegisterEventSource(NULL, _T("OpenSSL"));
208
209 if (hEventLog != NULL) {
210 const TCHAR *pmsg = buf;
211
212 if (!ReportEvent(hEventLog, EVENTLOG_ERROR_TYPE, 0, 0, NULL,
213 1, 0, &pmsg, NULL)) {
214 #if !defined(NDEBUG)
215 /*
216 * We are in a situation where we tried to report a critical
217 * error and this failed for some reason. As a last resort,
218 * in debug builds, send output to the debugger or any other
219 * tool like DebugView which can monitor the output.
220 */
221 OutputDebugString(pmsg);
222 #endif
223 }
224
225 (void)DeregisterEventSource(hEventLog);
226 }
227 } else {
228 MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONERROR);
229 }
230 #endif
231 #else
232 MessageBox(NULL, buf, _T("OpenSSL: FATAL"), MB_OK | MB_ICONERROR);
233 #endif
234 }
235 #else
OPENSSL_showfatal(const char * fmta,...)236 void OPENSSL_showfatal(const char *fmta, ...)
237 {
238 #ifndef OPENSSL_NO_STDIO
239 va_list ap;
240
241 va_start(ap, fmta);
242 vfprintf(stderr, fmta, ap);
243 va_end(ap);
244 #endif
245 }
246
OPENSSL_isservice(void)247 int OPENSSL_isservice(void)
248 {
249 return 0;
250 }
251 #endif
252
OPENSSL_die(const char * message,const char * file,int line)253 void OPENSSL_die(const char *message, const char *file, int line)
254 {
255 OPENSSL_showfatal("%s:%d: OpenSSL internal error: %s\n",
256 file, line, message);
257 #if !defined(_WIN32) || defined(OPENSSL_SYS_UEFI)
258 abort();
259 #else
260 /*
261 * Win32 abort() customarily shows a dialog, but we just did that...
262 */
263 #if !defined(_WIN32_WCE)
264 raise(SIGABRT);
265 #endif
266 _exit(3);
267 #endif
268 }
269
270 #if defined(__TANDEM) && defined(OPENSSL_VPROC)
271 /*
272 * Define a VPROC function for HP NonStop build crypto library.
273 * This is used by platform version identification tools.
274 * Do not inline this procedure or make it static.
275 */
276 #define OPENSSL_VPROC_STRING_(x) x##_CRYPTO
277 #define OPENSSL_VPROC_STRING(x) OPENSSL_VPROC_STRING_(x)
278 #define OPENSSL_VPROC_FUNC OPENSSL_VPROC_STRING(OPENSSL_VPROC)
OPENSSL_VPROC_FUNC(void)279 void OPENSSL_VPROC_FUNC(void) { }
280 #endif /* __TANDEM */
281