diff options
Diffstat (limited to '3rdparty/lzma/C/DllSecur.c')
-rw-r--r-- | 3rdparty/lzma/C/DllSecur.c | 114 |
1 files changed, 69 insertions, 45 deletions
diff --git a/3rdparty/lzma/C/DllSecur.c b/3rdparty/lzma/C/DllSecur.c index 90352ce10f7..02a0f977ead 100644 --- a/3rdparty/lzma/C/DllSecur.c +++ b/3rdparty/lzma/C/DllSecur.c @@ -1,87 +1,111 @@ /* DllSecur.c -- DLL loading security -2016-10-04 : Igor Pavlov : Public domain */ +2023-04-02 : Igor Pavlov : Public domain */ #include "Precomp.h" #ifdef _WIN32 -#include <windows.h> +#include "7zWindows.h" #include "DllSecur.h" #ifndef UNDER_CE +#if (defined(__GNUC__) && (__GNUC__ >= 8)) || defined(__clang__) + // #pragma GCC diagnostic ignored "-Wcast-function-type" +#endif + +#if defined(__clang__) || defined(__GNUC__) +typedef void (*Z7_voidFunction)(void); +#define MY_CAST_FUNC (Z7_voidFunction) +#elif defined(_MSC_VER) && _MSC_VER > 1920 +#define MY_CAST_FUNC (void *) +// #pragma warning(disable : 4191) // 'type cast': unsafe conversion from 'FARPROC' to 'void (__cdecl *)()' +#else +#define MY_CAST_FUNC +#endif + typedef BOOL (WINAPI *Func_SetDefaultDllDirectories)(DWORD DirectoryFlags); #define MY_LOAD_LIBRARY_SEARCH_USER_DIRS 0x400 #define MY_LOAD_LIBRARY_SEARCH_SYSTEM32 0x800 +#define DELIM "\0" + static const char * const g_Dlls = + "userenv" + DELIM "setupapi" + DELIM "apphelp" + DELIM "propsys" + DELIM "dwmapi" + DELIM "cryptbase" + DELIM "oleacc" + DELIM "clbcatq" + DELIM "version" #ifndef _CONSOLE - "UXTHEME\0" + DELIM "uxtheme" #endif - "USERENV\0" - "SETUPAPI\0" - "APPHELP\0" - "PROPSYS\0" - "DWMAPI\0" - "CRYPTBASE\0" - "OLEACC\0" - "CLBCATQ\0" - ; + DELIM; + +#endif +#ifdef __clang__ + #pragma GCC diagnostic ignored "-Wdeprecated-declarations" +#endif +#if defined (_MSC_VER) && _MSC_VER >= 1900 +// sysinfoapi.h: kit10: GetVersion was declared deprecated +#pragma warning(disable : 4996) #endif -void LoadSecurityDlls() +#define IF_NON_VISTA_SET_DLL_DIRS_AND_RETURN \ + if ((UInt16)GetVersion() != 6) { \ + const \ + Func_SetDefaultDllDirectories setDllDirs = \ + (Func_SetDefaultDllDirectories) MY_CAST_FUNC GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), \ + "SetDefaultDllDirectories"); \ + if (setDllDirs) if (setDllDirs(MY_LOAD_LIBRARY_SEARCH_SYSTEM32 | MY_LOAD_LIBRARY_SEARCH_USER_DIRS)) return; } + +void My_SetDefaultDllDirectories(void) { #ifndef UNDER_CE - - wchar_t buf[MAX_PATH + 100]; + IF_NON_VISTA_SET_DLL_DIRS_AND_RETURN + #endif +} - { - // at Vista (ver 6.0) : CoCreateInstance(CLSID_ShellLink, ...) doesn't work after SetDefaultDllDirectories() : Check it ??? - OSVERSIONINFO vi; - vi.dwOSVersionInfoSize = sizeof(vi); - if (!GetVersionEx(&vi) || vi.dwMajorVersion != 6 || vi.dwMinorVersion != 0) - { - Func_SetDefaultDllDirectories setDllDirs = (Func_SetDefaultDllDirectories) - GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "SetDefaultDllDirectories"); - if (setDllDirs) - if (setDllDirs(MY_LOAD_LIBRARY_SEARCH_SYSTEM32 | MY_LOAD_LIBRARY_SEARCH_USER_DIRS)) - return; - } - } +void LoadSecurityDlls(void) +{ + #ifndef UNDER_CE + // at Vista (ver 6.0) : CoCreateInstance(CLSID_ShellLink, ...) doesn't work after SetDefaultDllDirectories() : Check it ??? + IF_NON_VISTA_SET_DLL_DIRS_AND_RETURN { - unsigned len = GetSystemDirectoryW(buf, MAX_PATH + 2); - if (len == 0 || len > MAX_PATH) - return; - } - { + wchar_t buf[MAX_PATH + 100]; const char *dll; - unsigned pos = (unsigned)lstrlenW(buf); - + unsigned pos = GetSystemDirectoryW(buf, MAX_PATH + 2); + if (pos == 0 || pos > MAX_PATH) + return; if (buf[pos - 1] != '\\') buf[pos++] = '\\'; - - for (dll = g_Dlls; dll[0] != 0;) + for (dll = g_Dlls; *dll != 0;) { - unsigned k = 0; + wchar_t *dest = &buf[pos]; for (;;) { - char c = *dll++; - buf[pos + k] = c; - k++; + const char c = *dll++; if (c == 0) break; + *dest++ = (Byte)c; } - - lstrcatW(buf, L".dll"); + dest[0] = '.'; + dest[1] = 'd'; + dest[2] = 'l'; + dest[3] = 'l'; + dest[4] = 0; + // lstrcatW(buf, L".dll"); LoadLibraryExW(buf, NULL, LOAD_WITH_ALTERED_SEARCH_PATH); } } - #endif } -#endif +#endif // _WIN32 |