1// 2// Automated Testing Framework (atf) 3// 4// Copyright (c) 2007 The NetBSD Foundation, Inc. 5// All rights reserved. 6// 7// Redistribution and use in source and binary forms, with or without 8// modification, are permitted provided that the following conditions 9// are met: 10// 1. Redistributions of source code must retain the above copyright 11// notice, this list of conditions and the following disclaimer. 12// 2. Redistributions in binary form must reproduce the above copyright 13// notice, this list of conditions and the following disclaimer in the 14// documentation and/or other materials provided with the distribution. 15// 16// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND 17// CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 18// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20// IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY 21// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 23// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 25// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 26// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27// IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28// 29 30extern "C" { 31#include <errno.h> 32#include <stdlib.h> 33#include <string.h> 34} 35 36#include <cassert> 37 38#include "env.hpp" 39#include "exceptions.hpp" 40 41namespace impl = tools::env; 42#define IMPL_NAME "tools::env" 43 44// ------------------------------------------------------------------------ 45// Free functions. 46// ------------------------------------------------------------------------ 47 48std::string 49impl::get(const std::string& name) 50{ 51 const char *n =name.c_str(); 52 const char* val = getenv(n); 53 if (val != NULL) 54 return val; 55 if (strcmp(n, "PATH") == 0) 56 return "/bin:/usr/bin:/sbin:/usr/sbin"; 57 58 throw tools::system_error(IMPL_NAME "::set", 59 "Cannot get environment variable '" + name + 60 "'", errno); 61} 62 63bool 64impl::has(const std::string& name) 65{ 66 return getenv(name.c_str()) != NULL; 67} 68 69void 70impl::set(const std::string& name, const std::string& val) 71{ 72 if (setenv(name.c_str(), val.c_str(), 1) == -1) 73 throw tools::system_error(IMPL_NAME "::set", 74 "Cannot set environment variable '" + name + 75 "' to '" + val + "'", 76 errno); 77} 78 79void 80impl::unset(const std::string& name) 81{ 82 unsetenv(name.c_str()); 83} 84