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 30 extern "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 41 namespace impl = tools::env; 42 #define IMPL_NAME "tools::env" 43 44 // ------------------------------------------------------------------------ 45 // Free functions. 46 // ------------------------------------------------------------------------ 47 48 std::string 49 impl::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 63 bool 64 impl::has(const std::string& name) 65 { 66 return getenv(name.c_str()) != NULL; 67 } 68 69 void 70 impl::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 79 void 80 impl::unset(const std::string& name) 81 { 82 unsetenv(name.c_str()); 83 } 84