other-licenses/nsis/Contrib/ExDLL/exdll.h@97036ab72558
other-licenses/nsis/Contrib/ExDLL/exdll.h
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
1 // Unicode support added by Jim Park -- 07/27/2007
2 // Unicode support requires that all plugins take TCHARs instead as well. This
3 // means existing plugins will not work for the Unicode version of NSIS unless
4 // recompiled. You have been warned.
6 #ifndef _EXDLL_H_
7 #define _EXDLL_H_
9 #include <windows.h>
10 #include "tchar.h"
12 #if defined(__GNUC__)
13 #define UNUSED __attribute__((unused))
14 #else
15 #define UNUSED
16 #endif
18 // only include this file from one place in your DLL.
19 // (it is all static, if you use it in two places it will fail)
21 #define EXDLL_INIT() { \
22 g_stringsize=string_size; \
23 g_stacktop=stacktop; \
24 g_variables=variables; }
26 // For page showing plug-ins
27 #define WM_NOTIFY_OUTER_NEXT (WM_USER+0x8)
28 #define WM_NOTIFY_CUSTOM_READY (WM_USER+0xd)
30 /* Jim Park: This char is compared as an int value and therefore
31 it's fine as an ASCII. Do not need to change to wchar_t since
32 it will get the same integer value. */
33 #define NOTIFY_BYE_BYE _T('x')
35 typedef struct _stack_t {
36 struct _stack_t *next;
37 TCHAR text[1]; // this should be the length of string_size
38 } stack_t;
41 static unsigned int g_stringsize;
42 static stack_t **g_stacktop;
43 static TCHAR *g_variables;
45 static int __stdcall popstring(TCHAR *str) UNUSED; // 0 on success, 1 on empty stack
46 static void __stdcall pushstring(const TCHAR *str) UNUSED;
47 static TCHAR * __stdcall getuservariable(const int varnum) UNUSED;
48 static void __stdcall setuservariable(const int varnum, const TCHAR *var) UNUSED;
50 enum
51 {
52 INST_0, // $0
53 INST_1, // $1
54 INST_2, // $2
55 INST_3, // $3
56 INST_4, // $4
57 INST_5, // $5
58 INST_6, // $6
59 INST_7, // $7
60 INST_8, // $8
61 INST_9, // $9
62 INST_R0, // $R0
63 INST_R1, // $R1
64 INST_R2, // $R2
65 INST_R3, // $R3
66 INST_R4, // $R4
67 INST_R5, // $R5
68 INST_R6, // $R6
69 INST_R7, // $R7
70 INST_R8, // $R8
71 INST_R9, // $R9
72 INST_CMDLINE, // $CMDLINE
73 INST_INSTDIR, // $INSTDIR
74 INST_OUTDIR, // $OUTDIR
75 INST_EXEDIR, // $EXEDIR
76 INST_LANG, // $LANGUAGE
77 __INST_LAST
78 };
80 typedef struct {
81 int autoclose;
82 int all_user_var;
83 int exec_error;
84 int abort;
85 int exec_reboot;
86 int reboot_called;
87 int XXX_cur_insttype; // deprecated
88 int XXX_insttype_changed; // deprecated
89 int silent;
90 int instdir_error;
91 int rtl;
92 int errlvl;
93 int alter_reg_view;
94 int status_update;
95 } exec_flags_type;
97 typedef struct {
98 exec_flags_type *exec_flags;
99 int (__stdcall *ExecuteCodeSegment)(int, HWND);
100 void (__stdcall *validate_filename)(TCHAR *);
101 } extra_parameters;
103 // utility functions (not required but often useful)
104 static int __stdcall popstring(TCHAR *str)
105 {
106 stack_t *th;
107 if (!g_stacktop || !*g_stacktop) return 1;
108 th=(*g_stacktop);
109 lstrcpy(str,th->text);
110 *g_stacktop = th->next;
111 GlobalFree((HGLOBAL)th);
112 return 0;
113 }
115 static void __stdcall pushstring(const TCHAR *str)
116 {
117 stack_t *th;
118 if (!g_stacktop) return;
119 th=(stack_t*)GlobalAlloc(GPTR,(sizeof(stack_t)+(g_stringsize)*sizeof(TCHAR)));
120 lstrcpyn(th->text,str,g_stringsize);
121 th->next=*g_stacktop;
122 *g_stacktop=th;
123 }
125 static TCHAR * __stdcall getuservariable(const int varnum)
126 {
127 if (varnum < 0 || varnum >= __INST_LAST) return NULL;
128 return g_variables+varnum*g_stringsize;
129 }
131 static void __stdcall setuservariable(const int varnum, const TCHAR *var)
132 {
133 if (var != NULL && varnum >= 0 && varnum < __INST_LAST)
134 lstrcpy(g_variables + varnum*g_stringsize, var);
135 }
137 #ifdef _UNICODE
138 #define PopStringW(x) popstring(x)
139 #define PushStringW(x) pushstring(x)
140 #define SetUserVariableW(x,y) setuservariable(x,y)
142 static int __stdcall PopStringA(char* ansiStr)
143 {
144 wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, g_stringsize*sizeof(wchar_t));
145 int rval = popstring(wideStr);
146 WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
147 GlobalFree((HGLOBAL)wideStr);
148 return rval;
149 }
151 static void __stdcall PushStringA(const char* ansiStr)
152 {
153 wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, g_stringsize*sizeof(wchar_t));
154 MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
155 pushstring(wideStr);
156 GlobalFree((HGLOBAL)wideStr);
157 return;
158 }
160 static void __stdcall GetUserVariableW(const int varnum, wchar_t* wideStr)
161 {
162 lstrcpyW(wideStr, getuservariable(varnum));
163 }
165 static void __stdcall GetUserVariableA(const int varnum, char* ansiStr)
166 {
167 wchar_t* wideStr = getuservariable(varnum);
168 WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
169 }
171 static void __stdcall SetUserVariableA(const int varnum, const char* ansiStr)
172 {
173 if (ansiStr != NULL && varnum >= 0 && varnum < __INST_LAST)
174 {
175 wchar_t* wideStr = g_variables + varnum * g_stringsize;
176 MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
177 }
178 }
180 #else
181 // ANSI defs
183 #define PopStringA(x) popstring(x)
184 #define PushStringA(x) pushstring(x)
185 #define SetUserVariableA(x,y) setuservariable(x,y)
187 static int __stdcall PopStringW(wchar_t* wideStr)
188 {
189 char* ansiStr = (char*) GlobalAlloc(GPTR, g_stringsize);
190 int rval = popstring(ansiStr);
191 MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
192 GlobalFree((HGLOBAL)ansiStr);
193 return rval;
194 }
196 static void __stdcall PushStringW(wchar_t* wideStr)
197 {
198 char* ansiStr = (char*) GlobalAlloc(GPTR, g_stringsize);
199 WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
200 pushstring(ansiStr);
201 GlobalFree((HGLOBAL)ansiStr);
202 }
204 static void __stdcall GetUserVariableW(const int varnum, wchar_t* wideStr)
205 {
206 char* ansiStr = getuservariable(varnum);
207 MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
208 }
210 static void __stdcall GetUserVariableA(const int varnum, char* ansiStr)
211 {
212 lstrcpyA(ansiStr, getuservariable(varnum));
213 }
215 static void __stdcall SetUserVariableW(const int varnum, const wchar_t* wideStr)
216 {
217 if (wideStr != NULL && varnum >= 0 && varnum < __INST_LAST)
218 {
219 char* ansiStr = g_variables + varnum * g_stringsize;
220 WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
221 }
222 }
223 #endif
225 static BOOL __stdcall IsUnicode(void)
226 {
227 #ifdef _UNICODE
228 return TRUE;
229 #else
230 return FALSE;
231 #endif
232 }
234 #endif//_EXDLL_H_
