273 lines
6.6 KiB
C++
273 lines
6.6 KiB
C++
/**
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* @file lldir_linux.cpp
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* @brief Implementation of directory utilities for linux
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*
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* $LicenseInfo:firstyear=2002&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "linden_common.h"
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#include "lldir_linux.h"
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#include "llerror.h"
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#include "llrand.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <glob.h>
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#include <pwd.h>
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static std::string getCurrentUserHome(char* fallback)
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{
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const uid_t uid = getuid();
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struct passwd *pw;
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char *result_cstr = fallback;
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pw = getpwuid(uid);
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if ((pw != NULL) && (pw->pw_dir != NULL))
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{
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result_cstr = (char*) pw->pw_dir;
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}
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else
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{
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LL_INFOS() << "Couldn't detect home directory from passwd - trying $HOME" << LL_ENDL;
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const char *const home_env = getenv("HOME"); /* Flawfinder: ignore */
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if (home_env)
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{
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result_cstr = (char*) home_env;
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}
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else
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{
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LL_WARNS() << "Couldn't detect home directory! Falling back to " << fallback << LL_ENDL;
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}
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}
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return std::string(result_cstr);
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}
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LLDir_Linux::LLDir_Linux()
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{
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mDirDelimiter = "/";
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mCurrentDirIndex = -1;
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mCurrentDirCount = -1;
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mDirp = NULL;
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char tmp_str[LL_MAX_PATH]; /* Flawfinder: ignore */
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if (getcwd(tmp_str, LL_MAX_PATH) == NULL)
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{
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strcpy(tmp_str, "/tmp");
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LL_WARNS() << "Could not get current directory; changing to "
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<< tmp_str << LL_ENDL;
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if (chdir(tmp_str) == -1)
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{
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LL_ERRS() << "Could not change directory to " << tmp_str << LL_ENDL;
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}
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}
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mExecutableFilename = "";
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mExecutablePathAndName = "";
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mExecutableDir = tmp_str;
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mWorkingDir = tmp_str;
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#ifdef APP_RO_DATA_DIR
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mAppRODataDir = APP_RO_DATA_DIR;
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#else
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mAppRODataDir = tmp_str;
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#endif
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mSkinBaseDir = mAppRODataDir + mDirDelimiter + "skins";
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mOSUserDir = getCurrentUserHome(tmp_str);
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mOSUserAppDir = "";
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mLindenUserDir = "";
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char path [MAX_PATH]; /* Flawfinder: ignore */
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// *NOTE: /proc/%d/exe doesn't work on FreeBSD. But that's ok,
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// because this is the linux implementation.
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snprintf (path, sizeof(path), "/proc/%d/exe", (int) getpid ());
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int rc = readlink (path, tmp_str, sizeof (tmp_str)-1); /* Flawfinder: ignore */
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if ( (rc != -1) && (rc <= ((int) sizeof (tmp_str)-1)) )
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{
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tmp_str[rc] = '\0'; //readlink() doesn't 0-terminate the buffer
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mExecutablePathAndName = tmp_str;
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char *path_end;
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if ((path_end = strrchr(tmp_str,'/')))
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{
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*path_end = '\0';
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mExecutableDir = tmp_str;
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mWorkingDir = tmp_str;
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mExecutableFilename = path_end+1;
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}
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else
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{
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mExecutableFilename = tmp_str;
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}
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}
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mLLPluginDir = mExecutableDir + mDirDelimiter + "llplugin";
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// *TODO: don't use /tmp, use $HOME/.secondlife/tmp or something.
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mTempDir = "/tmp";
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}
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LLDir_Linux::~LLDir_Linux()
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{
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}
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// Implementation
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void LLDir_Linux::initAppDirs(const std::string &app_name,
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const std::string& app_read_only_data_dir)
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{
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// Allow override so test apps can read newview directory
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if (!app_read_only_data_dir.empty())
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{
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mAppRODataDir = app_read_only_data_dir;
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mSkinBaseDir = mAppRODataDir + mDirDelimiter + "skins";
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}
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mAppName = app_name;
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std::string upper_app_name(app_name);
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LLStringUtil::toUpper(upper_app_name);
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char* app_home_env = getenv((upper_app_name + "_USER_DIR").c_str()); /* Flawfinder: ignore */
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if (app_home_env)
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{
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// user has specified own userappdir i.e. $SECONDLIFE_USER_DIR
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mOSUserAppDir = app_home_env;
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}
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else
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{
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// traditionally on unixoids, MyApp gets ~/.myapp dir for data
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mOSUserAppDir = mOSUserDir;
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mOSUserAppDir += "/";
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mOSUserAppDir += ".";
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std::string lower_app_name(app_name);
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LLStringUtil::toLower(lower_app_name);
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mOSUserAppDir += lower_app_name;
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}
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// create any directories we expect to write to.
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int res = LLFile::mkdir(mOSUserAppDir);
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if (res == -1)
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{
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if (errno != EEXIST)
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{
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LL_WARNS() << "Couldn't create app user dir " << mOSUserAppDir << LL_ENDL;
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LL_WARNS() << "Default to base dir" << mOSUserDir << LL_ENDL;
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mOSUserAppDir = mOSUserDir;
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}
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}
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res = LLFile::mkdir(getExpandedFilename(LL_PATH_LOGS,""));
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if (res == -1)
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{
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if (errno != EEXIST)
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{
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LL_WARNS() << "Couldn't create LL_PATH_LOGS dir " << getExpandedFilename(LL_PATH_LOGS,"") << LL_ENDL;
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}
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}
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res = LLFile::mkdir(getExpandedFilename(LL_PATH_USER_SETTINGS,""));
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if (res == -1)
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{
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if (errno != EEXIST)
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{
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LL_WARNS() << "Couldn't create LL_PATH_USER_SETTINGS dir " << getExpandedFilename(LL_PATH_USER_SETTINGS,"") << LL_ENDL;
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}
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}
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res = LLFile::mkdir(getExpandedFilename(LL_PATH_CACHE,""));
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if (res == -1)
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{
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if (errno != EEXIST)
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{
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LL_WARNS() << "Couldn't create LL_PATH_CACHE dir " << getExpandedFilename(LL_PATH_CACHE,"") << LL_ENDL;
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}
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}
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mCAFile = getExpandedFilename(LL_PATH_APP_SETTINGS, "ca-bundle.crt");
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}
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U32 LLDir_Linux::countFilesInDir(const std::string &dirname, const std::string &mask)
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{
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U32 file_count = 0;
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glob_t g;
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std::string tmp_str;
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tmp_str = dirname;
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tmp_str += mask;
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if(glob(tmp_str.c_str(), GLOB_NOSORT, NULL, &g) == 0)
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{
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file_count = g.gl_pathc;
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globfree(&g);
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}
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return (file_count);
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}
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std::string LLDir_Linux::getCurPath()
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{
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char tmp_str[LL_MAX_PATH]; /* Flawfinder: ignore */
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if (getcwd(tmp_str, LL_MAX_PATH) == NULL)
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{
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LL_WARNS() << "Could not get current directory" << LL_ENDL;
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tmp_str[0] = '\0';
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}
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return tmp_str;
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}
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bool LLDir_Linux::fileExists(const std::string &filename) const
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{
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struct stat stat_data;
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// Check the age of the file
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// Now, we see if the files we've gathered are recent...
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int res = stat(filename.c_str(), &stat_data);
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if (!res)
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{
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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/*virtual*/ std::string LLDir_Linux::getLLPluginLauncher()
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{
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return gDirUtilp->getExecutableDir() + gDirUtilp->getDirDelimiter() +
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"llplugin/SLPlugin";
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}
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/*virtual*/ std::string LLDir_Linux::getLLPluginFilename(std::string base_name)
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{
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return gDirUtilp->getLLPluginDir() + gDirUtilp->getDirDelimiter() +
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"lib" + base_name + ".so";
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}
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