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// $Id: //poco/1.2/Foundation/src/Path_UNIX.cpp#1 $
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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#include "Poco/Path_UNIX.h"
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#include "Poco/Exception.h"
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#include "Poco/Environment_UNIX.h"
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#include <sys/types.h>
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#define PATH_MAX 1024 // fallback
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std::string PathImpl::currentImpl()
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if (getcwd(cwd, sizeof(cwd)))
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throw SystemException("cannot get current directory");
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std::string::size_type n = path.size();
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if (n > 0 && path[n - 1] != '/') path.append("/");
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std::string PathImpl::homeImpl()
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struct passwd* pwd = getpwuid(getuid());
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pwd = getpwuid(geteuid());
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path = EnvironmentImpl::getImpl("HOME");
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std::string::size_type n = path.size();
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if (n > 0 && path[n - 1] != '/') path.append("/");
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std::string PathImpl::tempImpl()
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char* tmp = getenv("TMPDIR");
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std::string::size_type n = path.size();
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if (n > 0 && path[n - 1] != '/') path.append("/");
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std::string PathImpl::nullImpl()
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std::string PathImpl::expandImpl(const std::string& path)
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std::string::const_iterator it = path.begin();
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std::string::const_iterator end = path.end();
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if (it != end && *it == '~')
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if (it != end && *it == '/')
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result += homeImpl(); ++it;
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if (it != end && *it == '{')
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while (it != end && *it != '}') var += *it++;
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while (it != end && (isalnum(*it, loc) || *it == '_')) var += *it++;
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char* val = getenv(var.c_str());
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if (val) result += val;
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else result += *it++;
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void PathImpl::listRootsImpl(std::vector<std::string>& roots)
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roots.push_back("/");