CArchFileUnix.cpp

/*
 * synergy -- mouse and keyboard sharing utility
 * Copyright (C) 2012 Bolton Software Ltd.
 * Copyright (C) 2002 Chris Schoeneman
 * 
 * This package is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * found in the file COPYING that should have accompanied this file.
 * 
 * This package 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "CArchFileUnix.h"
#include <stdio.h>
#include <unistd.h>
#include <pwd.h>
#include <sys/types.h>
#include <cstring>

//
// CArchFileUnix
//

CArchFileUnix::CArchFileUnix()
{
    // do nothing
}

CArchFileUnix::~CArchFileUnix()
{
    // do nothing
}

const char*
CArchFileUnix::getBasename(const char* pathname)
{
    if (pathname == NULL) {
        return NULL;
    }

    const char* basename = strrchr(pathname, '/');
    if (basename != NULL) {
        return basename + 1;
    }
    else {
        return pathname;
    }
}

std::string
CArchFileUnix::getUserDirectory()
{
    char* buffer = NULL;
    std::string dir;
#if HAVE_GETPWUID_R
    struct passwd pwent;
    struct passwd* pwentp;
#if defined(_SC_GETPW_R_SIZE_MAX)
    long size = sysconf(_SC_GETPW_R_SIZE_MAX);
    if (size == -1) {
        size = BUFSIZ;
    }
#else
    long size = BUFSIZ;
#endif
    buffer = new char[size];
    getpwuid_r(getuid(), &pwent, buffer, size, &pwentp);
#else
    struct passwd* pwentp = getpwuid(getuid());
#endif
    if (pwentp != NULL && pwentp->pw_dir != NULL) {
        dir = pwentp->pw_dir;
    }
    delete[] buffer;
    return dir;
}

std::string
CArchFileUnix::getSystemDirectory()
{
    return "/etc";
}

std::string
CArchFileUnix::concatPath(const std::string& prefix,
                const std::string& suffix)
{
    std::string path;
    path.reserve(prefix.size() + 1 + suffix.size());
    path += prefix;
    if (path.size() == 0 || path[path.size() - 1] != '/') {
        path += '/';
    }
    path += suffix;
    return path;
}