1 |
|
/****************************************************************************** |
2 |
|
* Top contributors (to current version): |
3 |
|
* Morgan Deters, Tim King |
4 |
|
* |
5 |
|
* This file is part of the cvc5 project. |
6 |
|
* |
7 |
|
* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
8 |
|
* in the top-level source directory and their institutional affiliations. |
9 |
|
* All rights reserved. See the file COPYING in the top-level source |
10 |
|
* directory for licensing information. |
11 |
|
* **************************************************************************** |
12 |
|
* |
13 |
|
* [[ Add one-line brief description here ]] |
14 |
|
* |
15 |
|
* [[ Add lengthier description here ]] |
16 |
|
* \todo document this file |
17 |
|
*/ |
18 |
|
|
19 |
|
#include "options/open_ostream.h" |
20 |
|
|
21 |
|
#include <cerrno> |
22 |
|
#include <fstream> |
23 |
|
#include <iostream> |
24 |
|
#include <ostream> |
25 |
|
#include <sstream> |
26 |
|
#include <string> |
27 |
|
#include <utility> |
28 |
|
|
29 |
|
#include "lib/strtok_r.h" |
30 |
|
#include "options/option_exception.h" |
31 |
|
#include "options/parser_options.h" |
32 |
|
|
33 |
|
namespace cvc5 { |
34 |
|
|
35 |
|
OstreamOpener::OstreamOpener(const char* channelName) |
36 |
|
: d_channelName(channelName) |
37 |
|
, d_specialCases() |
38 |
|
{} |
39 |
|
|
40 |
|
void OstreamOpener::addSpecialCase(const std::string& name, std::ostream* out){ |
41 |
|
d_specialCases[name] = out; |
42 |
|
} |
43 |
|
|
44 |
|
|
45 |
|
|
46 |
|
std::pair< bool, std::ostream* > OstreamOpener::open(const std::string& optarg) const |
47 |
|
{ |
48 |
|
if(optarg == "") { |
49 |
|
std::stringstream ss; |
50 |
|
ss << "Bad file name setting for " << d_channelName; |
51 |
|
throw OptionException(ss.str()); |
52 |
|
} |
53 |
|
if(d_specialCases.find(optarg) != d_specialCases.end()){ |
54 |
|
return std::make_pair(false, (*d_specialCases.find(optarg)).second); |
55 |
6109 |
} else if(!options::filesystemAccess()) { |
56 |
|
throw OptionException(std::string("Filesystem access not permitted")); |
57 |
|
} else { |
58 |
|
errno = 0; |
59 |
|
std::ostream* outStream; |
60 |
|
outStream = new std::ofstream(optarg.c_str(), |
61 |
|
std::ofstream::out | std::ofstream::trunc); |
62 |
|
if(outStream == NULL || !*outStream) { |
63 |
|
std::stringstream ss; |
64 |
|
ss << "Cannot open " << d_channelName << " file: `" << optarg |
65 |
|
<< "': " << cvc5_errno_failreason(); |
66 |
|
throw OptionException(ss.str()); |
67 |
|
} |
68 |
|
return make_pair(true, outStream); |
69 |
|
} |
70 |
|
} |
71 |
|
|
72 |
|
std::string cvc5_errno_failreason() |
73 |
|
{ |
74 |
|
#if HAVE_STRERROR_R |
75 |
|
#if STRERROR_R_CHAR_P |
76 |
|
if(errno != 0) { |
77 |
|
// GNU version of strerror_r: *might* use the given buffer, |
78 |
|
// or might not. It returns a pointer to buf, or not. |
79 |
|
char buf[80]; |
80 |
|
return std::string(strerror_r(errno, buf, sizeof buf)); |
81 |
|
} else { |
82 |
|
return "unknown reason"; |
83 |
|
} |
84 |
|
#else /* STRERROR_R_CHAR_P */ |
85 |
|
if(errno != 0) { |
86 |
|
// XSI version of strerror_r: always uses the given buffer. |
87 |
|
// Returns an error code. |
88 |
|
char buf[80]; |
89 |
|
if(strerror_r(errno, buf, sizeof buf) == 0) { |
90 |
|
return std::string(buf); |
91 |
|
} else { |
92 |
|
// some error occurred while getting the error string |
93 |
|
return "unknown reason"; |
94 |
|
} |
95 |
|
} else { |
96 |
|
return "unknown reason"; |
97 |
|
} |
98 |
|
#endif /* STRERROR_R_CHAR_P */ |
99 |
|
#else /* HAVE_STRERROR_R */ |
100 |
|
return "unknown reason"; |
101 |
|
#endif /* HAVE_STRERROR_R */ |
102 |
|
} |
103 |
|
|
104 |
34303 |
} // namespace cvc5 |