| 1 | /*
|
|---|
| 2 | * Copyright (C) 1995-2009 Contributors
|
|---|
| 3 | * More detailed copyright information can be found in the individual source code files.
|
|---|
| 4 | *
|
|---|
| 5 | * This software is provided 'as-is', without any express or implied warranty.
|
|---|
| 6 | * In no event will the authors be held liable for any damages arising from the use of this software.
|
|---|
| 7 | *
|
|---|
| 8 | * Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter
|
|---|
| 9 | * it and redistribute it freely, subject to the following restrictions:
|
|---|
| 10 | *
|
|---|
| 11 | * 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software.
|
|---|
| 12 | * If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
|
|---|
| 13 | * 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
|
|---|
| 14 | * 3. This notice may not be removed or altered from any source distribution.
|
|---|
| 15 | */
|
|---|
| 16 |
|
|---|
| 17 | /** Taken from:
|
|---|
| 18 | * http://nsis.sourceforge.net/Examples/Plugin/exdll.h
|
|---|
| 19 | */
|
|---|
| 20 |
|
|---|
| 21 | #ifndef GA_INCLUDED_SRC_WINNT_Installer_InstallHelper_exdll_h
|
|---|
| 22 | #define GA_INCLUDED_SRC_WINNT_Installer_InstallHelper_exdll_h
|
|---|
| 23 | #ifndef RT_WITHOUT_PRAGMA_ONCE
|
|---|
| 24 | # pragma once
|
|---|
| 25 | #endif
|
|---|
| 26 |
|
|---|
| 27 | #include <iprt/win/windows.h>
|
|---|
| 28 |
|
|---|
| 29 | #if defined(__GNUC__)
|
|---|
| 30 | #define UNUSED __attribute__((unused))
|
|---|
| 31 | #else
|
|---|
| 32 | #define UNUSED
|
|---|
| 33 | #endif
|
|---|
| 34 |
|
|---|
| 35 | // only include this file from one place in your DLL.
|
|---|
| 36 | // (it is all static, if you use it in two places it will fail)
|
|---|
| 37 |
|
|---|
| 38 | #define EXDLL_INIT() { \
|
|---|
| 39 | g_stringsize=string_size; \
|
|---|
| 40 | g_stacktop=stacktop; \
|
|---|
| 41 | g_variables=variables; }
|
|---|
| 42 |
|
|---|
| 43 | typedef struct _stack_t {
|
|---|
| 44 | struct _stack_t *next;
|
|---|
| 45 | char text[1]; // this should be the length of string_size
|
|---|
| 46 | } stack_t;
|
|---|
| 47 |
|
|---|
| 48 |
|
|---|
| 49 | static unsigned int g_stringsize;
|
|---|
| 50 | static stack_t **g_stacktop;
|
|---|
| 51 | static char *g_variables;
|
|---|
| 52 |
|
|---|
| 53 | static int __stdcall popstring(char *str) UNUSED; // 0 on success, 1 on empty stack
|
|---|
| 54 | static void __stdcall pushstring(const char *str) UNUSED;
|
|---|
| 55 | static char * __stdcall getuservariable(const int varnum) UNUSED;
|
|---|
| 56 | static void __stdcall setuservariable(const int varnum, const char *var) UNUSED;
|
|---|
| 57 |
|
|---|
| 58 | enum
|
|---|
| 59 | {
|
|---|
| 60 | INST_0, // $0
|
|---|
| 61 | INST_1, // $1
|
|---|
| 62 | INST_2, // $2
|
|---|
| 63 | INST_3, // $3
|
|---|
| 64 | INST_4, // $4
|
|---|
| 65 | INST_5, // $5
|
|---|
| 66 | INST_6, // $6
|
|---|
| 67 | INST_7, // $7
|
|---|
| 68 | INST_8, // $8
|
|---|
| 69 | INST_9, // $9
|
|---|
| 70 | INST_R0, // $R0
|
|---|
| 71 | INST_R1, // $R1
|
|---|
| 72 | INST_R2, // $R2
|
|---|
| 73 | INST_R3, // $R3
|
|---|
| 74 | INST_R4, // $R4
|
|---|
| 75 | INST_R5, // $R5
|
|---|
| 76 | INST_R6, // $R6
|
|---|
| 77 | INST_R7, // $R7
|
|---|
| 78 | INST_R8, // $R8
|
|---|
| 79 | INST_R9, // $R9
|
|---|
| 80 | INST_CMDLINE, // $CMDLINE
|
|---|
| 81 | INST_INSTDIR, // $INSTDIR
|
|---|
| 82 | INST_OUTDIR, // $OUTDIR
|
|---|
| 83 | INST_EXEDIR, // $EXEDIR
|
|---|
| 84 | INST_LANG, // $LANGUAGE
|
|---|
| 85 | __INST_LAST
|
|---|
| 86 | };
|
|---|
| 87 |
|
|---|
| 88 | // utility functions (not required but often useful)
|
|---|
| 89 | static int __stdcall popstring(char *str)
|
|---|
| 90 | {
|
|---|
| 91 | stack_t *th;
|
|---|
| 92 | if (!g_stacktop || !*g_stacktop)
|
|---|
| 93 | return 1;
|
|---|
| 94 | th=(*g_stacktop);
|
|---|
| 95 | lstrcpyA(str,th->text);
|
|---|
| 96 | *g_stacktop = th->next;
|
|---|
| 97 | GlobalFree((HGLOBAL)th);
|
|---|
| 98 | return 0;
|
|---|
| 99 | }
|
|---|
| 100 |
|
|---|
| 101 | static void __stdcall pushstring(const char *str)
|
|---|
| 102 | {
|
|---|
| 103 | stack_t *th;
|
|---|
| 104 | if (!g_stacktop)
|
|---|
| 105 | return;
|
|---|
| 106 | th=(stack_t*)GlobalAlloc(GPTR,sizeof(stack_t)+g_stringsize);
|
|---|
| 107 | lstrcpynA(th->text,str,g_stringsize);
|
|---|
| 108 | th->next=*g_stacktop;
|
|---|
| 109 | *g_stacktop=th;
|
|---|
| 110 | }
|
|---|
| 111 |
|
|---|
| 112 | static char * __stdcall getuservariable(const int varnum)
|
|---|
| 113 | {
|
|---|
| 114 | if (varnum < 0 || varnum >= __INST_LAST)
|
|---|
| 115 | return NULL;
|
|---|
| 116 | return g_variables+varnum*g_stringsize;
|
|---|
| 117 | }
|
|---|
| 118 |
|
|---|
| 119 | static void __stdcall setuservariable(const int varnum, const char *var)
|
|---|
| 120 | {
|
|---|
| 121 | if (var != NULL && varnum >= 0 && varnum < __INST_LAST)
|
|---|
| 122 | lstrcpyA(g_variables + varnum*g_stringsize, var);
|
|---|
| 123 | }
|
|---|
| 124 | #endif /* !GA_INCLUDED_SRC_WINNT_Installer_InstallHelper_exdll_h */
|
|---|
