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//
// VMime library (http://www.vmime.org)
// Copyright (C) 2002-2005 Vincent Richard <[email protected]>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 2 of
// the License, or (at your option) any later version.
//
// This program 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 along
// with this program; if not, write to the Free Software Foundation, Inc., Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA..
//
#include "vmime/platforms/posix/posixHandler.hpp"
#include <time.h>
#include <unistd.h>
#include <locale.h>
#include <langinfo.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <netdb.h>
#include <string.h>
#ifdef _POSIX_PRIORITY_SCHEDULING
#include <sched.h>
#endif // _POSIX_PRIORITY_SCHEDULING
namespace vmime {
namespace platforms {
namespace posix {
posixHandler::posixHandler()
{
#if VMIME_HAVE_MESSAGING_FEATURES
m_socketFactory = new posixSocketFactory();
#endif
#if VMIME_HAVE_FILESYSTEM_FEATURES
m_fileSysFactory = new posixFileSystemFactory();
m_childProcFactory = new posixChildProcessFactory();
#endif
}
posixHandler::~posixHandler()
{
#if VMIME_HAVE_MESSAGING_FEATURES
delete (m_socketFactory);
#endif
#if VMIME_HAVE_FILESYSTEM_FEATURES
delete (m_fileSysFactory);
delete (m_childProcFactory);
#endif
}
const unsigned int posixHandler::getUnixTime() const
{
return ::time(NULL);
}
const vmime::datetime posixHandler::getCurrentLocalTime() const
{
const time_t t(::time(NULL));
// Get the local time
#ifdef _REENTRANT
tm local;
::localtime_r(&t, &local);
#else
tm local = *::localtime(&t); // WARNING: this is not thread-safe!
#endif
// Get the UTC time
#ifdef _REENTRANT
tm gmt;
::gmtime_r(&t, &gmt);
#else
tm gmt = *::gmtime(&t); // WARNING: this is not thread-safe!
#endif
// "A negative value for tm_isdst causes mktime() to attempt
// to determine whether Daylight Saving Time is in effect
// for the specified time."
local.tm_isdst = -1;
gmt.tm_isdst = -1;
// Calculate the difference (in seconds)
const int diff = ::mktime(&local) - ::mktime(&gmt);
// Return the date
return vmime::datetime(local.tm_year + 1900, local.tm_mon + 1, local.tm_mday,
local.tm_hour, local.tm_min, local.tm_sec, diff / 60); // minutes needed
}
const vmime::charset posixHandler::getLocaleCharset() const
{
vmime::string prevLocale(::setlocale(LC_ALL, ""));
vmime::charset ch(::nl_langinfo(CODESET));
::setlocale(LC_ALL, prevLocale.c_str());
return (ch);
}
const vmime::string posixHandler::getHostName() const
{
std::vector <vmime::string> hostnames;
char buffer[256];
// Try with 'gethostname'
::gethostname(buffer, sizeof(buffer));
buffer[sizeof(buffer) - 1] = '\0';
if (::strlen(buffer) == 0)
::strcpy(buffer, "localhost");
hostnames.push_back(buffer);
// And with 'gethostbyname'
struct hostent* he = ::gethostbyname(buffer);
if (he != NULL)
{
if (::strlen(he->h_name) != 0)
hostnames.push_back(he->h_name);
char** alias = he->h_aliases;
while (alias && *alias)
{
if (::strlen(*alias) != 0)
hostnames.push_back(*alias);
++alias;
}
}
// Find a Fully-Qualified Domain Name (FQDN)
for (unsigned int i = 0 ; i < hostnames.size() ; ++i)
{
if (hostnames[i].find_first_of(".") != vmime::string::npos)
return (hostnames[i]);
}
return (hostnames[0]);
}
const unsigned int posixHandler::getProcessId() const
{
return (::getpid());
}
#if VMIME_HAVE_MESSAGING_FEATURES
vmime::net::socketFactory* posixHandler::getSocketFactory
(const vmime::string& /* name */) const
{
return (m_socketFactory);
}
vmime::net::timeoutHandlerFactory* posixHandler::getTimeoutHandlerFactory
(const vmime::string& /* name */) const
{
// Not used by default
return (NULL);
}
#endif
#if VMIME_HAVE_FILESYSTEM_FEATURES
vmime::utility::fileSystemFactory* posixHandler::getFileSystemFactory() const
{
return (m_fileSysFactory);
}
vmime::utility::childProcessFactory* posixHandler::getChildProcessFactory() const
{
return (m_childProcFactory);
}
#endif
void posixHandler::wait() const
{
#ifdef _POSIX_PRIORITY_SCHEDULING
::sched_yield();
#else
::sleep(1);
#endif // _POSIX_PRIORITY_SCHEDULING
}
} // posix
} // platforms
} // vmime
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