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
get(const std::string & name)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
has(const std::string & name)64 impl::has(const std::string& name)
65 {
66 return getenv(name.c_str()) != NULL;
67 }
68
69 void
set(const std::string & name,const std::string & val)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
unset(const std::string & name)80 impl::unset(const std::string& name)
81 {
82 unsetenv(name.c_str());
83 }
84