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/**
* @file lldir_linux.cpp
* @brief Implementation of directory utilities for linux
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "lldir_linux.h"
#include "llerror.h"
#include "llrand.h"
#include "llstring.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <glob.h>
#include <pwd.h>
static std::string getCurrentUserHome(char* fallback)
{
const uid_t uid = getuid();
struct passwd *pw;
pw = getpwuid(uid);
if ((pw != NULL) && (pw->pw_dir != NULL))
{
return pw->pw_dir;
}
LL_INFOS() << "Couldn't detect home directory from passwd - trying $HOME" << LL_ENDL;
auto home_env = LLStringUtil::getoptenv("HOME");
if (home_env)
{
return *home_env;
}
else
{
LL_WARNS() << "Couldn't detect home directory! Falling back to " << fallback << LL_ENDL;
return fallback;
}
}
LLDir_Linux::LLDir_Linux()
{
mDirDelimiter = "/";
mCurrentDirIndex = -1;
mCurrentDirCount = -1;
mDirp = NULL;
char tmp_str[LL_MAX_PATH]; /* Flawfinder: ignore */
if (getcwd(tmp_str, LL_MAX_PATH) == NULL)
{
strcpy(tmp_str, "/tmp");
LL_WARNS() << "Could not get current directory; changing to "
<< tmp_str << LL_ENDL;
if (chdir(tmp_str) == -1)
{
LL_ERRS() << "Could not change directory to " << tmp_str << LL_ENDL;
}
}
mExecutableFilename = "";
mExecutablePathAndName = "";
#ifdef APP_LIBEXEC_DIR
mExecutableDir = APP_LIBEXEC_DIR;
#else
mExecutableDir = tmp_str;
#endif
mWorkingDir = tmp_str;
#ifdef APP_RO_DATA_DIR
mAppRODataDir = APP_RO_DATA_DIR;
#else
mAppRODataDir = tmp_str;
#endif
std::string::size_type build_dir_pos = mExecutableDir.rfind("/build-linux-");
if (build_dir_pos != std::string::npos)
{
// ...we're in a dev checkout
mSkinBaseDir = mExecutableDir.substr(0, build_dir_pos) + "/indra/newview/skins";
LL_INFOS() << "Running in dev checkout with mSkinBaseDir "
<< mSkinBaseDir << LL_ENDL;
}
else
{
// ...normal installation running
mSkinBaseDir = mAppRODataDir + mDirDelimiter + "skins";
}
mOSUserDir = getCurrentUserHome(tmp_str);
mOSUserAppDir = "";
mLindenUserDir = "";
char path [32]; /* Flawfinder: ignore */
// *NOTE: /proc/%d/exe doesn't work on FreeBSD. But that's ok,
// because this is the linux implementation.
snprintf (path, sizeof(path), "/proc/%d/exe", (int) getpid ());
int rc = readlink (path, tmp_str, sizeof (tmp_str)-1); /* Flawfinder: ignore */
if ( (rc != -1) && (rc <= ((int) sizeof (tmp_str)-1)) )
{
tmp_str[rc] = '\0'; //readlink() doesn't 0-terminate the buffer
mExecutablePathAndName = tmp_str;
char *path_end;
if ((path_end = strrchr(tmp_str,'/')))
{
*path_end = '\0';
mExecutableDir = tmp_str;
mWorkingDir = tmp_str;
mExecutableFilename = path_end+1;
}
else
{
mExecutableFilename = tmp_str;
}
}
#ifdef APP_PLUGIN_DIR
mLLPluginDir = APP_PLUGIN_DIR;
#else
mLLPluginDir = mExecutableDir + mDirDelimiter + "llplugin";
#endif
// *TODO: don't use /tmp, use $HOME/.secondlife/tmp or something.
mTempDir = "/tmp";
}
LLDir_Linux::~LLDir_Linux()
{
}
// Implementation
void LLDir_Linux::initAppDirs(const std::string &app_name,
const std::string& app_read_only_data_dir)
{
// Allow override so test apps can read newview directory
if (!app_read_only_data_dir.empty())
{
mAppRODataDir = app_read_only_data_dir;
mSkinBaseDir = add(mAppRODataDir, "skins");
}
mAppName = app_name;
std::string upper_app_name(app_name);
LLStringUtil::toUpper(upper_app_name);
auto app_home_env(LLStringUtil::getoptenv(upper_app_name + "_USER_DIR"));
if (app_home_env)
{
// user has specified own userappdir i.e. $SECONDLIFE_USER_DIR
mOSUserAppDir = *app_home_env;
}
else
{
// traditionally on unixoids, MyApp gets ~/.myapp dir for data
mOSUserAppDir = mOSUserDir;
mOSUserAppDir += "/";
mOSUserAppDir += ".";
std::string lower_app_name(app_name);
LLStringUtil::toLower(lower_app_name);
mOSUserAppDir += lower_app_name;
}
// create any directories we expect to write to.
int res = LLFile::mkdir(mOSUserAppDir);
if (res == -1)
{
LL_WARNS() << "Couldn't create app user dir " << mOSUserAppDir << LL_ENDL;
LL_WARNS() << "Default to base dir" << mOSUserDir << LL_ENDL;
mOSUserAppDir = mOSUserDir;
}
res = LLFile::mkdir(getExpandedFilename(LL_PATH_LOGS,""));
if (res == -1)
{
LL_WARNS() << "Couldn't create LL_PATH_LOGS dir " << getExpandedFilename(LL_PATH_LOGS,"") << LL_ENDL;
}
res = LLFile::mkdir(getExpandedFilename(LL_PATH_USER_SETTINGS,""));
if (res == -1)
{
LL_WARNS() << "Couldn't create LL_PATH_USER_SETTINGS dir " << getExpandedFilename(LL_PATH_USER_SETTINGS,"") << LL_ENDL;
}
res = LLFile::mkdir(getExpandedFilename(LL_PATH_CACHE,""));
if (res == -1)
{
LL_WARNS() << "Couldn't create LL_PATH_CACHE dir " << getExpandedFilename(LL_PATH_CACHE,"") << LL_ENDL;
}
mCAFile = add(mAppRODataDir, "ca-bundle.crt");
}
U32 LLDir_Linux::countFilesInDir(const std::string &dirname, const std::string &mask)
{
U32 file_count = 0;
glob_t g;
std::string tmp_str;
tmp_str = dirname;
tmp_str += mask;
if(glob(tmp_str.c_str(), GLOB_NOSORT, NULL, &g) == 0)
{
file_count = g.gl_pathc;
globfree(&g);
}
return (file_count);
}
std::string LLDir_Linux::getCurPath()
{
char tmp_str[LL_MAX_PATH]; /* Flawfinder: ignore */
if (getcwd(tmp_str, LL_MAX_PATH) == NULL)
{
LL_WARNS() << "Could not get current directory" << LL_ENDL;
tmp_str[0] = '\0';
}
return tmp_str;
}
bool LLDir_Linux::fileExists(const std::string &filename) const
{
struct stat stat_data;
// Check the age of the file
// Now, we see if the files we've gathered are recent...
int res = stat(filename.c_str(), &stat_data);
if (!res)
{
return TRUE;
}
else
{
return FALSE;
}
}
/*virtual*/ std::string LLDir_Linux::getLLPluginLauncher()
{
return gDirUtilp->getExecutableDir() + gDirUtilp->getDirDelimiter() +
"SLPlugin";
}
/*virtual*/ std::string LLDir_Linux::getLLPluginFilename(std::string base_name)
{
return gDirUtilp->getLLPluginDir() + gDirUtilp->getDirDelimiter() +
"lib" + base_name + ".so";
}
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