312 lines
8.6 KiB
C
312 lines
8.6 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#ifndef INCLUDED_LIBREOFFICEKIT_LIBREOFFICEKITINIT_H
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#define INCLUDED_LIBREOFFICEKIT_LIBREOFFICEKITINIT_H
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#include <LibreOfficeKit/LibreOfficeKit.h>
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#if defined(__linux__) || defined (__FreeBSD_kernel__) || defined(_AIX) ||\
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defined(_WIN32) || defined(__APPLE__) || defined (__NetBSD__) ||\
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defined (__sun) || defined(__OpenBSD__)
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#ifndef _WIN32
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#include <dlfcn.h>
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#ifdef _AIX
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# include <sys/ldr.h>
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#endif
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#ifdef __APPLE__
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#define TARGET_LIB "lib" "sofficeapp" ".dylib"
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#define TARGET_MERGED_LIB "lib" "mergedlo" ".dylib"
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#else
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#define TARGET_LIB "lib" "sofficeapp" ".so"
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#define TARGET_MERGED_LIB "lib" "mergedlo" ".so"
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#endif
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#define SEPARATOR '/'
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#if !defined(IOS)
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static void *lok_loadlib(const char *pFN)
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{
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return dlopen(pFN, RTLD_LAZY
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#if defined LOK_LOADLIB_GLOBAL
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| RTLD_GLOBAL
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#endif
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);
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}
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static char *lok_dlerror(void)
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{
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return dlerror();
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}
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// This function must be called to release memory allocated by lok_dlerror()
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static void lok_dlerror_free(char *pErrMessage)
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{
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(void)pErrMessage;
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// Do nothing for return of dlerror()
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}
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static void extendUnoPath(const char *pPath)
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{
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(void)pPath;
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}
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#endif // IOS
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static void *lok_dlsym(void *Hnd, const char *pName)
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{
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return dlsym(Hnd, pName);
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}
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static int lok_dlclose(void *Hnd)
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{
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return dlclose(Hnd);
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}
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#else
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#pragma warning(disable:4996)
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#if !defined WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#define TARGET_LIB "sofficeapp" ".dll"
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#define TARGET_MERGED_LIB "mergedlo" ".dll"
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#define SEPARATOR '\\'
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#define UNOPATH "\\..\\URE\\bin"
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static void *lok_loadlib(const char *pFN)
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{
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return (void *) LoadLibraryA(pFN);
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}
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static char *lok_dlerror(void)
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{
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LPSTR buf = NULL;
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FormatMessageA(FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
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NULL, GetLastError(), 0, reinterpret_cast<LPSTR>(&buf), 0, NULL);
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return buf;
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}
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// This function must be called to release memory allocated by lok_dlerror()
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static void lok_dlerror_free(char *pErrMessage)
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{
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HeapFree(GetProcessHeap(), 0, pErrMessage);
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}
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static void *lok_dlsym(void *Hnd, const char *pName)
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{
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return reinterpret_cast<void *>(GetProcAddress((HINSTANCE) Hnd, pName));
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}
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static int lok_dlclose(void *Hnd)
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{
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return FreeLibrary((HINSTANCE) Hnd);
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}
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static void extendUnoPath(const char *pPath)
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{
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char *sNewPath = NULL, *sEnvPath = NULL;
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size_t size_sEnvPath = 0, buffer_size = 0;
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DWORD cChars;
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if (!pPath)
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return;
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cChars = GetEnvironmentVariableA("PATH", sEnvPath, 0);
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if (cChars > 0)
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{
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sEnvPath = (char *) malloc(cChars);
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cChars = GetEnvironmentVariableA("PATH", sEnvPath, cChars);
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//If PATH is not set then it is no error
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if (cChars == 0 && GetLastError() != ERROR_ENVVAR_NOT_FOUND)
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{
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free(sEnvPath);
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return;
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}
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}
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//prepare the new PATH. Add the Ure/bin directory at the front.
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//note also adding ';'
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if(sEnvPath)
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size_sEnvPath = strlen(sEnvPath);
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buffer_size = size_sEnvPath + 2*strlen(pPath) + strlen(UNOPATH) + 4;
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sNewPath = (char *) malloc(buffer_size);
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sNewPath[0] = L'\0';
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strcat_s(sNewPath, buffer_size, pPath); // program to PATH
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strcat_s(sNewPath, buffer_size, ";");
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strcat_s(sNewPath, buffer_size, UNOPATH); // UNO to PATH
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if (size_sEnvPath > 0)
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{
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strcat_s(sNewPath, buffer_size, ";");
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strcat_s(sNewPath, buffer_size, sEnvPath);
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}
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SetEnvironmentVariableA("PATH", sNewPath);
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free(sNewPath);
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free(sEnvPath);
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}
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#endif
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static void *lok_dlopen( const char *install_path, char ** _imp_lib )
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{
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char *imp_lib;
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void *dlhandle;
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#if !defined(IOS)
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size_t partial_length, imp_lib_size;
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struct stat dir_st;
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*_imp_lib = NULL;
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if (!install_path)
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return NULL;
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if (stat(install_path, &dir_st) != 0)
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{
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fprintf(stderr, "installation path \"%s\" does not exist\n", install_path);
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return NULL;
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}
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// allocate large enough buffer
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partial_length = strlen(install_path);
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imp_lib_size = partial_length + sizeof(TARGET_LIB) + sizeof(TARGET_MERGED_LIB) + 2;
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imp_lib = (char *) malloc(imp_lib_size);
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if (!imp_lib)
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{
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fprintf( stderr, "failed to open library : not enough memory\n");
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return NULL;
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}
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strncpy(imp_lib, install_path, imp_lib_size);
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extendUnoPath(install_path);
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imp_lib[partial_length++] = SEPARATOR;
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strncpy(imp_lib + partial_length, TARGET_LIB, imp_lib_size - partial_length);
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dlhandle = lok_loadlib(imp_lib);
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if (!dlhandle)
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{
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// If TARGET_LIB exists, and likely is a real library (not a
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// small one-line text stub as in the --enable-mergedlib
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// case), but dlopen failed for some reason, don't try
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// TARGET_MERGED_LIB.
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struct stat st;
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if (stat(imp_lib, &st) == 0 && st.st_size > 100)
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{
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char *pErrMessage = lok_dlerror();
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fprintf(stderr, "failed to open library '%s': %s\n",
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imp_lib, pErrMessage);
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lok_dlerror_free(pErrMessage);
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free(imp_lib);
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return NULL;
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}
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strncpy(imp_lib + partial_length, TARGET_MERGED_LIB, imp_lib_size - partial_length);
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dlhandle = lok_loadlib(imp_lib);
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if (!dlhandle)
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{
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char *pErrMessage = lok_dlerror();
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fprintf(stderr, "failed to open library '%s': %s\n",
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imp_lib, pErrMessage);
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lok_dlerror_free(pErrMessage);
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free(imp_lib);
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return NULL;
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}
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}
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#else
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(void)install_path;
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imp_lib = strdup("the app executable");
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dlhandle = RTLD_MAIN_ONLY;
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#endif
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*_imp_lib = imp_lib;
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return dlhandle;
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}
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typedef LibreOfficeKit *(LokHookFunction)( const char *install_path);
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typedef LibreOfficeKit *(LokHookFunction2)( const char *install_path, const char *user_profile_url );
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typedef int (LokHookPreInit) ( const char *install_path, const char *user_profile_url );
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static LibreOfficeKit *lok_init_2( const char *install_path, const char *user_profile_url )
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{
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char *imp_lib;
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void *dlhandle;
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LokHookFunction *pSym;
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LokHookFunction2 *pSym2;
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dlhandle = lok_dlopen(install_path, &imp_lib);
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if (!dlhandle)
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return NULL;
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pSym2 = (LokHookFunction2 *) lok_dlsym(dlhandle, "libreofficekit_hook_2");
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if (!pSym2)
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{
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if (user_profile_url != NULL)
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{
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fprintf( stderr, "the LibreOffice version in '%s' does not support passing a user profile to the hook function\n",
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imp_lib );
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lok_dlclose( dlhandle );
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free( imp_lib );
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return NULL;
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}
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pSym = (LokHookFunction *) lok_dlsym( dlhandle, "libreofficekit_hook" );
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if (!pSym)
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{
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fprintf( stderr, "failed to find hook in library '%s'\n", imp_lib );
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lok_dlclose( dlhandle );
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free( imp_lib );
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return NULL;
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}
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free( imp_lib );
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// dlhandle is "leaked"
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// coverity[leaked_storage]
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return pSym( install_path );
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}
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free( imp_lib );
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// dlhandle is "leaked"
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// coverity[leaked_storage]
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return pSym2( install_path, user_profile_url );
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}
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static
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#if defined __GNUC__ || defined __clang__
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__attribute__((used))
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#endif
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LibreOfficeKit *lok_init( const char *install_path )
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{
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return lok_init_2( install_path, NULL );
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}
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#undef SEPARATOR // It is used at least in enum class MenuItemType
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#endif // defined(__linux__) || defined (__FreeBSD_kernel__) || defined(_AIX) || defined(_WIN32) || defined(__APPLE__)
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#ifdef __cplusplus
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}
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#endif
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#endif // INCLUDED_LIBREOFFICEKIT_LIBREOFFICEKITINIT_H
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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