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-rw-r--r-- | sal/osl/unx/process_impl.cxx | 473 |
1 files changed, 473 insertions, 0 deletions
diff --git a/sal/osl/unx/process_impl.cxx b/sal/osl/unx/process_impl.cxx new file mode 100644 index 000000000..5d7f7644f --- /dev/null +++ b/sal/osl/unx/process_impl.cxx @@ -0,0 +1,473 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <config_features.h> + +#include <osl/process.h> + +#include <limits.h> +#include <pthread.h> +#include <stdlib.h> +#include <string.h> + +#include <osl/diagnose.h> +#include <osl/file.hxx> +#include <osl/module.h> +#include <osl/thread.h> +#include <rtl/alloc.h> +#include <rtl/ustring.hxx> +#include <rtl/strbuf.h> +#include <sal/log.hxx> + +#include "file_path_helper.hxx" + +#include "uunxapi.hxx" +#include "nlsupport.hxx" + +#ifdef ANDROID +#include <osl/detail/android-bootstrap.h> +#endif + +#if defined(MACOSX) || defined(IOS) +#include <mach-o/dyld.h> + +namespace { + +oslProcessError bootstrap_getExecutableFile(rtl_uString ** ppFileURL) +{ + oslProcessError result = osl_Process_E_NotFound; + + char buffer[PATH_MAX]; + uint32_t buflen = sizeof(buffer); + + if (_NSGetExecutablePath (buffer, &buflen) == 0) + { + /* Determine absolute path. */ + char abspath[PATH_MAX]; + if (realpath (buffer, abspath) != nullptr) + { + /* Convert from utf8 to unicode. */ + rtl_uString * pAbsPath = nullptr; + rtl_string2UString ( + &pAbsPath, + abspath, rtl_str_getLength (abspath), + RTL_TEXTENCODING_UTF8, + OSTRING_TO_OUSTRING_CVTFLAGS); + + if (pAbsPath) + { + /* Convert from path to url. */ + if (osl_getFileURLFromSystemPath (pAbsPath, ppFileURL) == osl_File_E_None) + { + /* Success. */ + result = osl_Process_E_None; + } + rtl_uString_release (pAbsPath); + } + } + } + + return result; +} + +} + +#else +#include <dlfcn.h> + +namespace { + +oslProcessError bootstrap_getExecutableFile(rtl_uString ** ppFileURL) +{ + oslProcessError result = osl_Process_E_NotFound; + +#ifdef ANDROID + /* Now with just a single DSO, this one from lo-bootstrap.c is as good as + * any */ + void * addr = dlsym (RTLD_DEFAULT, "JNI_OnLoad"); +#else +#if defined __linux + // The below code looking for "main" with dlsym() will typically + // fail, as there is little reason for "main" to be exported, in + // the dlsym() sense, from an executable. But Linux has + // /proc/self/exe, try using that. + char buf[PATH_MAX]; + int rc = readlink("/proc/self/exe", buf, sizeof(buf)); + if (rc > 0 && rc < PATH_MAX) + { + buf[rc] = '\0'; + OUString path = OUString::fromUtf8(buf); + OUString fileURL; + if (osl::File::getFileURLFromSystemPath(path, fileURL) == osl::File::E_None) + { + rtl_uString_acquire(fileURL.pData); + *ppFileURL = fileURL.pData; + return osl_Process_E_None; + } + } +#endif + /* Determine address of "main()" function. */ + void * addr = dlsym (RTLD_DEFAULT, "main"); +#endif + if (addr != nullptr) + { + /* Determine module URL. */ + if (osl_getModuleURLFromAddress (addr, ppFileURL)) + { + /* Success. */ + result = osl_Process_E_None; + } + } + + return result; +} + +} + +#endif + +namespace { + +struct CommandArgs_Impl +{ + pthread_mutex_t m_mutex; + sal_uInt32 m_nCount; + rtl_uString ** m_ppArgs; +}; + +} + +static struct CommandArgs_Impl g_command_args = +{ + PTHREAD_MUTEX_INITIALIZER, + 0, + nullptr +}; + +oslProcessError SAL_CALL osl_getExecutableFile (rtl_uString ** ppustrFile) +{ + pthread_mutex_lock (&(g_command_args.m_mutex)); + if (g_command_args.m_nCount == 0) + { + pthread_mutex_unlock (&(g_command_args.m_mutex)); + return bootstrap_getExecutableFile(ppustrFile); + } + + /* CommandArgs set. Obtain argv[0]. */ + rtl_uString_assign (ppustrFile, g_command_args.m_ppArgs[0]); + pthread_mutex_unlock (&(g_command_args.m_mutex)); + return osl_Process_E_None; +} + +sal_uInt32 SAL_CALL osl_getCommandArgCount() +{ + sal_uInt32 result = 0; + + pthread_mutex_lock (&(g_command_args.m_mutex)); + SAL_INFO_IF( + g_command_args.m_nCount == 0, "sal.osl", + "osl_getCommandArgCount w/o prior call to osl_setCommandArgs"); + if (g_command_args.m_nCount > 0) + result = g_command_args.m_nCount - 1; + pthread_mutex_unlock (&(g_command_args.m_mutex)); + + return result; +} + +oslProcessError SAL_CALL osl_getCommandArg (sal_uInt32 nArg, rtl_uString ** strCommandArg) +{ + oslProcessError result = osl_Process_E_NotFound; + + pthread_mutex_lock (&(g_command_args.m_mutex)); + assert(g_command_args.m_nCount > 0); + if (g_command_args.m_nCount > (nArg + 1)) + { + rtl_uString_assign (strCommandArg, g_command_args.m_ppArgs[nArg + 1]); + result = osl_Process_E_None; + } + pthread_mutex_unlock (&(g_command_args.m_mutex)); + + return result; +} + +void SAL_CALL osl_setCommandArgs (int argc, char ** argv) +{ + assert(argc > 0); + pthread_mutex_lock (&(g_command_args.m_mutex)); + SAL_WARN_IF(g_command_args.m_nCount != 0, "sal.osl", "args already set"); + if (g_command_args.m_nCount == 0) + { + rtl_uString** ppArgs = static_cast<rtl_uString**>(rtl_allocateZeroMemory (argc * sizeof(rtl_uString*))); + if (ppArgs != nullptr) + { + rtl_TextEncoding encoding = osl_getThreadTextEncoding(); + for (int i = 0; i < argc; i++) + { + rtl_string2UString ( + &(ppArgs[i]), + argv[i], rtl_str_getLength (argv[i]), encoding, + OSTRING_TO_OUSTRING_CVTFLAGS); + } + if (ppArgs[0] != nullptr) + { +#if HAVE_FEATURE_MACOSX_SANDBOX + // If we are called with a relative path in argv[0] in a sandboxed process + // osl::realpath() fails. So just use bootstrap_getExecutableFile() instead. + // Somewhat silly to use argv[0] and tediously figure out the absolute path from it + // anyway. + bootstrap_getExecutableFile(&ppArgs[0]); + OUString pArg0(ppArgs[0]); + osl_getFileURLFromSystemPath (pArg0.pData, &(ppArgs[0])); +#else +#if !defined(ANDROID) && !defined(IOS) // No use searching PATH on Android or iOS + /* see @ osl_getExecutableFile(). */ + if (rtl_ustr_indexOfChar (rtl_uString_getStr(ppArgs[0]), '/') == -1) + { + const OUString PATH ("PATH"); + + rtl_uString * pSearchPath = nullptr; + osl_getEnvironment (PATH.pData, &pSearchPath); + if (pSearchPath) + { + rtl_uString * pSearchResult = nullptr; + osl_searchPath (ppArgs[0], pSearchPath, &pSearchResult); + if (pSearchResult) + { + rtl_uString_assign (&(ppArgs[0]), pSearchResult); + rtl_uString_release (pSearchResult); + } + rtl_uString_release (pSearchPath); + } + } +#endif + OUString pArg0; + if (osl::realpath (OUString::unacquired(&ppArgs[0]), pArg0)) + { + osl_getFileURLFromSystemPath (pArg0.pData, &(ppArgs[0])); + } +#endif // !HAVE_FEATURE_MACOSX_SANDBOX + } + g_command_args.m_nCount = argc; + g_command_args.m_ppArgs = ppArgs; + } + } + pthread_mutex_unlock (&(g_command_args.m_mutex)); +} + +oslProcessError SAL_CALL osl_getEnvironment(rtl_uString* pustrEnvVar, rtl_uString** ppustrValue) +{ + oslProcessError result = osl_Process_E_NotFound; + rtl_TextEncoding encoding = osl_getThreadTextEncoding(); + rtl_String* pstr_env_var = nullptr; + + OSL_PRECOND(pustrEnvVar, "osl_getEnvironment(): Invalid parameter"); + OSL_PRECOND(ppustrValue, "osl_getEnvironment(): Invalid parameter"); + + rtl_uString2String( + &pstr_env_var, + rtl_uString_getStr(pustrEnvVar), rtl_uString_getLength(pustrEnvVar), encoding, + OUSTRING_TO_OSTRING_CVTFLAGS); + if (pstr_env_var != nullptr) + { + const char* p_env_var = getenv (rtl_string_getStr (pstr_env_var)); + if (p_env_var != nullptr) + { + rtl_string2UString( + ppustrValue, + p_env_var, strlen(p_env_var), encoding, + OSTRING_TO_OUSTRING_CVTFLAGS); + OSL_ASSERT(*ppustrValue != nullptr); + + result = osl_Process_E_None; + } + rtl_string_release(pstr_env_var); + } + + return result; +} + +oslProcessError SAL_CALL osl_setEnvironment(rtl_uString* pustrEnvVar, rtl_uString* pustrValue) +{ + oslProcessError result = osl_Process_E_Unknown; + rtl_TextEncoding encoding = osl_getThreadTextEncoding(); + rtl_String* pstr_env_var = nullptr; + rtl_String* pstr_val = nullptr; + + OSL_PRECOND(pustrEnvVar, "osl_setEnvironment(): Invalid parameter"); + OSL_PRECOND(pustrValue, "osl_setEnvironment(): Invalid parameter"); + + rtl_uString2String( + &pstr_env_var, + rtl_uString_getStr(pustrEnvVar), rtl_uString_getLength(pustrEnvVar), encoding, + OUSTRING_TO_OSTRING_CVTFLAGS); + + rtl_uString2String( + &pstr_val, + rtl_uString_getStr(pustrValue), rtl_uString_getLength(pustrValue), encoding, + OUSTRING_TO_OSTRING_CVTFLAGS); + + if (pstr_env_var != nullptr && pstr_val != nullptr) + { +#if defined (__sun) + rtl_String * pBuffer = NULL; + + sal_Int32 nCapacity = rtl_stringbuffer_newFromStringBuffer( &pBuffer, + rtl_string_getLength(pstr_env_var) + rtl_string_getLength(pstr_val) + 1, + pstr_env_var ); + rtl_stringbuffer_insert( &pBuffer, &nCapacity, pBuffer->length, "=", 1); + rtl_stringbuffer_insert( &pBuffer, &nCapacity, pBuffer->length, + rtl_string_getStr(pstr_val), rtl_string_getLength(pstr_val) ); + + rtl_string_acquire(pBuffer); // argument to putenv must leak on success + + if (putenv(rtl_string_getStr(pBuffer)) == 0) + result = osl_Process_E_None; + else + rtl_string_release(pBuffer); +#else + if (setenv(rtl_string_getStr(pstr_env_var), rtl_string_getStr(pstr_val), 1) == 0) + result = osl_Process_E_None; +#endif + } + + if (pstr_val) + rtl_string_release(pstr_val); + + if (pstr_env_var != nullptr) + rtl_string_release(pstr_env_var); + + return result; +} + +oslProcessError SAL_CALL osl_clearEnvironment(rtl_uString* pustrEnvVar) +{ + oslProcessError result = osl_Process_E_Unknown; + rtl_TextEncoding encoding = osl_getThreadTextEncoding(); + rtl_String* pstr_env_var = nullptr; + + OSL_PRECOND(pustrEnvVar, "osl_setEnvironment(): Invalid parameter"); + + rtl_uString2String( + &pstr_env_var, + rtl_uString_getStr(pustrEnvVar), rtl_uString_getLength(pustrEnvVar), encoding, + OUSTRING_TO_OSTRING_CVTFLAGS); + + if (pstr_env_var) + { +#if defined (__sun) + rtl_String * pBuffer = NULL; + + sal_Int32 nCapacity = rtl_stringbuffer_newFromStringBuffer( &pBuffer, + rtl_string_getLength(pstr_env_var) + 1, pstr_env_var ); + rtl_stringbuffer_insert( &pBuffer, &nCapacity, pBuffer->length, "=", 1); + + rtl_string_acquire(pBuffer); // argument to putenv must leak on success + + if (putenv(rtl_string_getStr(pBuffer)) == 0) + result = osl_Process_E_None; + else + rtl_string_release(pBuffer); +#elif (defined(MACOSX) || defined(NETBSD) || defined(FREEBSD)) + // MacOSX baseline is 10.4, which has an old-school void return + // for unsetenv. + // See: http://developer.apple.com/mac/library/documentation/Darwin/Reference/ManPages/10.4/man3/unsetenv.3.html?useVersion=10.4 + unsetenv(rtl_string_getStr(pstr_env_var)); + result = osl_Process_E_None; +#else + if (unsetenv(rtl_string_getStr(pstr_env_var)) == 0) + result = osl_Process_E_None; +#endif + rtl_string_release(pstr_env_var); + } + + return result; +} + +oslProcessError SAL_CALL osl_getProcessWorkingDir(rtl_uString **ppustrWorkingDir) +{ + oslProcessError result = osl_Process_E_Unknown; + char buffer[PATH_MAX]; + + OSL_PRECOND(ppustrWorkingDir, "osl_getProcessWorkingDir(): Invalid parameter"); + + if (getcwd (buffer, sizeof(buffer)) != nullptr) + { + rtl_uString* ustrTmp = nullptr; + + rtl_string2UString( + &ustrTmp, + buffer, strlen(buffer), osl_getThreadTextEncoding(), + OSTRING_TO_OUSTRING_CVTFLAGS); + if (ustrTmp != nullptr) + { + if (osl_getFileURLFromSystemPath (ustrTmp, ppustrWorkingDir) == osl_File_E_None) + result = osl_Process_E_None; + rtl_uString_release (ustrTmp); + } + } + + return result; +} + +namespace { + +struct ProcessLocale_Impl +{ + pthread_mutex_t m_mutex; + rtl_Locale * m_pLocale; +}; + +} + +static struct ProcessLocale_Impl g_process_locale = +{ + PTHREAD_MUTEX_INITIALIZER, + nullptr +}; + +oslProcessError SAL_CALL osl_getProcessLocale( rtl_Locale ** ppLocale ) +{ + oslProcessError result = osl_Process_E_Unknown; + OSL_PRECOND(ppLocale, "osl_getProcessLocale(): Invalid parameter."); + if (ppLocale) + { + pthread_mutex_lock(&(g_process_locale.m_mutex)); + + if (g_process_locale.m_pLocale == nullptr) + imp_getProcessLocale (&(g_process_locale.m_pLocale)); + *ppLocale = g_process_locale.m_pLocale; + result = osl_Process_E_None; + + pthread_mutex_unlock (&(g_process_locale.m_mutex)); + } + return result; +} + +oslProcessError SAL_CALL osl_setProcessLocale( rtl_Locale * pLocale ) +{ + OSL_PRECOND(pLocale, "osl_setProcessLocale(): Invalid parameter."); + + pthread_mutex_lock(&(g_process_locale.m_mutex)); + g_process_locale.m_pLocale = pLocale; + pthread_mutex_unlock (&(g_process_locale.m_mutex)); + + return osl_Process_E_None; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |