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/* Copyright © 2006 Roger Leigh <rleigh@debian.org>
*
* schroot 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.
*
* schroot 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*********************************************************************/
#include <config.h>
#include "sbuild-personality.h"
#include <cstring>
#include <cerrno>
#include <utility>
#ifdef __linux__
#include <sys/personality.h>
#endif
#include <boost/format.hpp>
using boost::format;
using namespace sbuild;
namespace
{
typedef std::pair<sbuild::personality::error_code,const char *> emap;
/**
* This is a list of the supported error codes. It's used to
* construct the real error codes map.
*/
emap init_errors[] =
{
emap(sbuild::personality::SET, N_("Failed to set personality"))
};
typedef std::pair<std::string,sbuild::personality::type> pmap;
/**
* This is a list of the supported personalities. It's used to
* construct the real personalities map.
*/
pmap initial_personalities[] =
{
pmap("undefined", 0xffffffff),
#ifdef __linux__
pmap("linux", PER_LINUX),
pmap("linux_32bit", PER_LINUX_32BIT),
pmap("svr4", PER_SVR4),
pmap("scorvr3", PER_SCOSVR3),
pmap("osr5", PER_OSR5),
pmap("wysev386", PER_WYSEV386),
pmap("iscr4", PER_ISCR4),
pmap("bsd", PER_BSD),
pmap("sunos", PER_SUNOS),
pmap("xenix", PER_XENIX),
pmap("linux32", PER_LINUX32),
pmap("irix32", PER_IRIX32),
pmap("irixn32", PER_IRIXN32),
pmap("irix64", PER_IRIX64),
pmap("riscos", PER_RISCOS),
pmap("solaris", PER_SOLARIS),
pmap("uw7", PER_UW7),
pmap("hpux", PER_HPUX),
pmap("osf4", PER_OSF4),
#endif
};
}
template<>
error<sbuild::personality::error_code>::map_type
error<sbuild::personality::error_code>::error_strings
(init_errors,
init_errors + (sizeof(init_errors) / sizeof(init_errors[0])));
std::map<std::string,sbuild::personality::type>
sbuild::personality::personalities(initial_personalities,
initial_personalities + (sizeof(initial_personalities) / sizeof(initial_personalities[0])));
sbuild::personality::personality ():
persona(
#ifdef __linux__
::personality(0xffffffff)
#else
0xffffffff
#endif
)
{
}
sbuild::personality::personality (type persona):
persona(persona)
{
}
sbuild::personality::personality (std::string const& persona):
persona(find_personality(persona))
{
}
sbuild::personality::~personality ()
{
}
sbuild::personality::type
sbuild::personality::find_personality (std::string const& persona)
{
std::map<std::string,type>::const_iterator pos =
personalities.find(persona);
if (pos != personalities.end())
return pos->second;
return 0xffffffff;
}
std::string const&
sbuild::personality::find_personality (type persona)
{
static const std::string unknown("unknown");
for (std::map<std::string,type>::const_iterator pos = personalities.begin();
pos != personalities.end();
++pos)
if (pos->second == persona)
return pos->first;
return unknown;
}
std::string const&
sbuild::personality::get_name () const
{
return find_personality(this->persona);
}
sbuild::personality::type
sbuild::personality::get () const
{
return this->persona;
}
void
sbuild::personality::set () const
{
#ifdef __linux__
/* Set the process execution domain using personality(2). */
if (this->persona != 0xffffffff &&
::personality (this->persona) < 0)
{
throw error(get_name(), SET, strerror(errno));
}
#endif
}
void
sbuild::personality::print_personalities (std::ostream& stream)
{
for (std::map<std::string,type>::const_iterator pos = personalities.begin();
pos != personalities.end();
++pos)
{
stream << pos->first;
std::map<std::string,type>::const_iterator stpos = pos;
if (++stpos != personalities.end())
stream << ", ";
}
}
/*
* Local Variables:
* mode:C++
* End:
*/
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