254 lines
4.6 KiB
C
254 lines
4.6 KiB
C
/**
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* WinPR: Windows Portable Runtime
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* Library Loader
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*
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* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <winpr/crt.h>
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#include <winpr/platform.h>
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#include <winpr/library.h>
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/**
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* api-ms-win-core-libraryloader-l1-1-1.dll:
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*
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* AddDllDirectory
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* RemoveDllDirectory
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* SetDefaultDllDirectories
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* DisableThreadLibraryCalls
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* EnumResourceLanguagesExA
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* EnumResourceLanguagesExW
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* EnumResourceNamesExA
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* EnumResourceNamesExW
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* EnumResourceTypesExA
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* EnumResourceTypesExW
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* FindResourceExW
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* FindStringOrdinal
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* FreeLibrary
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* FreeLibraryAndExitThread
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* FreeResource
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* GetModuleFileNameA
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* GetModuleFileNameW
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* GetModuleHandleA
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* GetModuleHandleExA
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* GetModuleHandleExW
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* GetModuleHandleW
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* GetProcAddress
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* LoadLibraryExA
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* LoadLibraryExW
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* LoadResource
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* LoadStringA
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* LoadStringW
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* LockResource
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* QueryOptionalDelayLoadedAPI
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* SizeofResource
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*/
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#ifndef _WIN32
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#include <dlfcn.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#ifdef __MACOSX__
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#include <mach-o/dyld.h>
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#endif
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DLL_DIRECTORY_COOKIE AddDllDirectory(PCWSTR NewDirectory)
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{
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return NULL;
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}
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BOOL RemoveDllDirectory(DLL_DIRECTORY_COOKIE Cookie)
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{
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return TRUE;
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}
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BOOL SetDefaultDllDirectories(DWORD DirectoryFlags)
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{
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return TRUE;
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}
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HMODULE LoadLibraryA(LPCSTR lpLibFileName)
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{
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HMODULE library;
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library = dlopen(lpLibFileName, RTLD_LOCAL | RTLD_LAZY);
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if (library == NULL)
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{
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fprintf(stderr, "LoadLibraryA: %s\n", dlerror());
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return NULL;
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}
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return library;
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}
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HMODULE LoadLibraryW(LPCWSTR lpLibFileName)
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{
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return (HMODULE) NULL;
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}
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HMODULE LoadLibraryExA(LPCSTR lpLibFileName, HANDLE hFile, DWORD dwFlags)
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{
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HMODULE library;
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library = dlopen(lpLibFileName, RTLD_LOCAL | RTLD_LAZY);
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if (library == NULL)
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{
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fprintf(stderr, "LoadLibraryA: failed to open %s: %s\n", lpLibFileName, dlerror());
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return NULL;
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}
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return library;
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}
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HMODULE LoadLibraryExW(LPCWSTR lpLibFileName, HANDLE hFile, DWORD dwFlags)
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{
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return (HMODULE) NULL;
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}
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FARPROC GetProcAddress(HMODULE hModule, LPCSTR lpProcName)
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{
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FARPROC proc;
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proc = dlsym(hModule, lpProcName);
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if (proc == NULL)
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{
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fprintf(stderr, "GetProcAddress: could not find procedure %s: %s\n", lpProcName, dlerror());
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return (FARPROC) NULL;
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}
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return proc;
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}
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BOOL FreeLibrary(HMODULE hLibModule)
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{
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int status;
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status = dlclose(hLibModule);
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if (status != 0)
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return FALSE;
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return TRUE;
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}
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/**
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* GetModuleFileName:
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* http://msdn.microsoft.com/en-us/library/windows/desktop/ms683197/
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*
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* Finding current executable's path without /proc/self/exe:
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* http://stackoverflow.com/questions/1023306/finding-current-executables-path-without-proc-self-exe
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*/
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DWORD GetModuleFileNameW(HMODULE hModule, LPWSTR lpFilename, DWORD nSize)
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{
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return 0;
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}
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DWORD GetModuleFileNameA(HMODULE hModule, LPSTR lpFilename, DWORD nSize)
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{
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#if defined(__linux__)
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int status;
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int length;
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char path[64];
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if (!hModule)
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{
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char buffer[4096];
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sprintf(path, "/proc/%d/exe", getpid());
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status = readlink(path, buffer, sizeof(buffer));
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if (status < 0)
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return 0;
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buffer[status] = '\0';
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length = strlen(buffer);
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if (length < nSize)
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{
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CopyMemory(lpFilename, buffer, length);
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lpFilename[length] = '\0';
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}
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else
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{
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CopyMemory(lpFilename, buffer, nSize - 1);
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lpFilename[nSize - 1] = '\0';
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}
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return 0;
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}
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#elif defined(__MACOSX__)
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int status;
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int length;
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if (!hModule)
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{
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char path[4096];
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char buffer[4096];
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uint32_t size = sizeof(path);
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status = _NSGetExecutablePath(path, &size);
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if (status != 0)
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{
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/* path too small */
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return 0;
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}
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/*
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* _NSGetExecutablePath may not return the canonical path,
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* so use realpath to find the absolute, canonical path.
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*/
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realpath(path, buffer);
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length = strlen(buffer);
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if (length < nSize)
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{
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CopyMemory(lpFilename, buffer, length);
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lpFilename[length] = '\0';
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}
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else
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{
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CopyMemory(lpFilename, buffer, nSize - 1);
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lpFilename[nSize - 1] = '\0';
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}
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return 0;
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}
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#endif
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return 0;
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}
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#endif
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