xref: /freebsd/contrib/atf/atf-sh/atf-check.cpp (revision d93a896ef95946b0bf1219866fcb324b78543444)
1 // Copyright (c) 2008 The NetBSD Foundation, Inc.
2 // All rights reserved.
3 //
4 // Redistribution and use in source and binary forms, with or without
5 // modification, are permitted provided that the following conditions
6 // are met:
7 // 1. Redistributions of source code must retain the above copyright
8 //    notice, this list of conditions and the following disclaimer.
9 // 2. Redistributions in binary form must reproduce the above copyright
10 //    notice, this list of conditions and the following disclaimer in the
11 //    documentation and/or other materials provided with the distribution.
12 //
13 // THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
14 // CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
15 // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
16 // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 // IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
18 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
20 // GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
22 // IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
24 // IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 
26 extern "C" {
27 #include <sys/types.h>
28 #include <sys/wait.h>
29 
30 #include <limits.h>
31 #include <signal.h>
32 #include <unistd.h>
33 }
34 
35 #include <cerrno>
36 #include <cstdlib>
37 #include <cstring>
38 #include <fstream>
39 #include <ios>
40 #include <iostream>
41 #include <iterator>
42 #include <list>
43 #include <memory>
44 #include <utility>
45 
46 #include "atf-c++/check.hpp"
47 #include "atf-c++/detail/application.hpp"
48 #include "atf-c++/detail/auto_array.hpp"
49 #include "atf-c++/detail/env.hpp"
50 #include "atf-c++/detail/exceptions.hpp"
51 #include "atf-c++/detail/fs.hpp"
52 #include "atf-c++/detail/process.hpp"
53 #include "atf-c++/detail/sanity.hpp"
54 #include "atf-c++/detail/text.hpp"
55 
56 // ------------------------------------------------------------------------
57 // Auxiliary functions.
58 // ------------------------------------------------------------------------
59 
60 namespace {
61 
62 enum status_check_t {
63     sc_exit,
64     sc_ignore,
65     sc_signal,
66 };
67 
68 struct status_check {
69     status_check_t type;
70     bool negated;
71     int value;
72 
73     status_check(const status_check_t& p_type, const bool p_negated,
74                  const int p_value) :
75         type(p_type),
76         negated(p_negated),
77         value(p_value)
78     {
79     }
80 };
81 
82 enum output_check_t {
83     oc_ignore,
84     oc_inline,
85     oc_file,
86     oc_empty,
87     oc_match,
88     oc_save
89 };
90 
91 struct output_check {
92     output_check_t type;
93     bool negated;
94     std::string value;
95 
96     output_check(const output_check_t& p_type, const bool p_negated,
97                  const std::string& p_value) :
98         type(p_type),
99         negated(p_negated),
100         value(p_value)
101     {
102     }
103 };
104 
105 class temp_file : public std::ostream {
106     std::auto_ptr< atf::fs::path > m_path;
107     int m_fd;
108 
109 public:
110     temp_file(const char* pattern) :
111         std::ostream(NULL),
112         m_fd(-1)
113     {
114         const atf::fs::path file = atf::fs::path(
115             atf::env::get("TMPDIR", "/tmp")) / pattern;
116 
117         atf::auto_array< char > buf(new char[file.str().length() + 1]);
118         std::strcpy(buf.get(), file.c_str());
119 
120         m_fd = ::mkstemp(buf.get());
121         if (m_fd == -1)
122             throw atf::system_error("atf_check::temp_file::temp_file(" +
123                                     file.str() + ")", "mkstemp(3) failed",
124                                     errno);
125 
126         m_path.reset(new atf::fs::path(buf.get()));
127     }
128 
129     ~temp_file(void)
130     {
131         close();
132         try {
133             remove(*m_path);
134         } catch (const atf::system_error&) {
135             // Ignore deletion errors.
136         }
137     }
138 
139     const atf::fs::path&
140     get_path(void) const
141     {
142         return *m_path;
143     }
144 
145     void
146     write(const std::string& text)
147     {
148         if (::write(m_fd, text.c_str(), text.size()) == -1)
149             throw atf::system_error("atf_check", "write(2) failed", errno);
150     }
151 
152     void
153     close(void)
154     {
155         if (m_fd != -1) {
156             flush();
157             ::close(m_fd);
158             m_fd = -1;
159         }
160     }
161 };
162 
163 } // anonymous namespace
164 
165 static int
166 parse_exit_code(const std::string& str)
167 {
168     try {
169         const int value = atf::text::to_type< int >(str);
170         if (value < 0 || value > 255)
171             throw std::runtime_error("Unused reason");
172         return value;
173     } catch (const std::runtime_error&) {
174         throw atf::application::usage_error("Invalid exit code for -s option; "
175             "must be an integer in range 0-255");
176     }
177 }
178 
179 static struct name_number {
180     const char *name;
181     int signo;
182 } signal_names_to_numbers[] = {
183     { "hup", SIGHUP },
184     { "int", SIGINT },
185     { "quit", SIGQUIT },
186     { "trap", SIGTRAP },
187     { "abrt", SIGABRT },
188     { "kill", SIGKILL },
189     { "segv", SIGSEGV },
190     { "pipe", SIGPIPE },
191     { "alrm", SIGALRM },
192     { "term", SIGTERM },
193     { "usr1", SIGUSR1 },
194     { "usr2", SIGUSR2 },
195     { NULL, INT_MIN },
196 };
197 
198 static int
199 signal_name_to_number(const std::string& str)
200 {
201     struct name_number* iter = signal_names_to_numbers;
202     int signo = INT_MIN;
203     while (signo == INT_MIN && iter->name != NULL) {
204         if (str == iter->name || str == std::string("sig") + iter->name)
205             signo = iter->signo;
206         else
207             iter++;
208     }
209     return signo;
210 }
211 
212 static int
213 parse_signal(const std::string& str)
214 {
215     const int signo = signal_name_to_number(str);
216     if (signo == INT_MIN) {
217         try {
218             return atf::text::to_type< int >(str);
219         } catch (std::runtime_error) {
220             throw atf::application::usage_error("Invalid signal name or number "
221                 "in -s option");
222         }
223     }
224     INV(signo != INT_MIN);
225     return signo;
226 }
227 
228 static status_check
229 parse_status_check_arg(const std::string& arg)
230 {
231     const std::string::size_type delimiter = arg.find(':');
232     bool negated = (arg.compare(0, 4, "not-") == 0);
233     const std::string action_str = arg.substr(0, delimiter);
234     const std::string action = negated ? action_str.substr(4) : action_str;
235     const std::string value_str = (
236         delimiter == std::string::npos ? "" : arg.substr(delimiter + 1));
237     int value;
238 
239     status_check_t type;
240     if (action == "eq") {
241         // Deprecated; use exit instead.  TODO: Remove after 0.10.
242         type = sc_exit;
243         if (negated)
244             throw atf::application::usage_error("Cannot negate eq checker");
245         negated = false;
246         value = parse_exit_code(value_str);
247     } else if (action == "exit") {
248         type = sc_exit;
249         if (value_str.empty())
250             value = INT_MIN;
251         else
252             value = parse_exit_code(value_str);
253     } else if (action == "ignore") {
254         if (negated)
255             throw atf::application::usage_error("Cannot negate ignore checker");
256         type = sc_ignore;
257         value = INT_MIN;
258     } else if (action == "ne") {
259         // Deprecated; use not-exit instead.  TODO: Remove after 0.10.
260         type = sc_exit;
261         if (negated)
262             throw atf::application::usage_error("Cannot negate ne checker");
263         negated = true;
264         value = parse_exit_code(value_str);
265     } else if (action == "signal") {
266         type = sc_signal;
267         if (value_str.empty())
268             value = INT_MIN;
269         else
270             value = parse_signal(value_str);
271     } else
272         throw atf::application::usage_error("Invalid status checker");
273 
274     return status_check(type, negated, value);
275 }
276 
277 static
278 output_check
279 parse_output_check_arg(const std::string& arg)
280 {
281     const std::string::size_type delimiter = arg.find(':');
282     const bool negated = (arg.compare(0, 4, "not-") == 0);
283     const std::string action_str = arg.substr(0, delimiter);
284     const std::string action = negated ? action_str.substr(4) : action_str;
285 
286     output_check_t type;
287     if (action == "empty")
288         type = oc_empty;
289     else if (action == "file")
290         type = oc_file;
291     else if (action == "ignore") {
292         if (negated)
293             throw atf::application::usage_error("Cannot negate ignore checker");
294         type = oc_ignore;
295     } else if (action == "inline")
296         type = oc_inline;
297     else if (action == "match")
298         type = oc_match;
299     else if (action == "save") {
300         if (negated)
301             throw atf::application::usage_error("Cannot negate save checker");
302         type = oc_save;
303     } else
304         throw atf::application::usage_error("Invalid output checker");
305 
306     return output_check(type, negated, arg.substr(delimiter + 1));
307 }
308 
309 static
310 std::string
311 flatten_argv(char* const* argv)
312 {
313     std::string cmdline;
314 
315     char* const* arg = &argv[0];
316     while (*arg != NULL) {
317         if (arg != &argv[0])
318             cmdline += ' ';
319 
320         cmdline += *arg;
321 
322         arg++;
323     }
324 
325     return cmdline;
326 }
327 
328 static
329 std::auto_ptr< atf::check::check_result >
330 execute(const char* const* argv)
331 {
332     // TODO: This should go to stderr... but fixing it now may be hard as test
333     // cases out there might be relying on stderr being silent.
334     std::cout << "Executing command [ ";
335     for (int i = 0; argv[i] != NULL; ++i)
336         std::cout << argv[i] << " ";
337     std::cout << "]\n";
338     std::cout.flush();
339 
340     atf::process::argv_array argva(argv);
341     return atf::check::exec(argva);
342 }
343 
344 static
345 std::auto_ptr< atf::check::check_result >
346 execute_with_shell(char* const* argv)
347 {
348     const std::string cmd = flatten_argv(argv);
349     const std::string shell = atf::env::get("ATF_SHELL", ATF_SHELL);
350 
351     const char* sh_argv[4];
352     sh_argv[0] = shell.c_str();
353     sh_argv[1] = "-c";
354     sh_argv[2] = cmd.c_str();
355     sh_argv[3] = NULL;
356     return execute(sh_argv);
357 }
358 
359 static
360 void
361 cat_file(const atf::fs::path& path)
362 {
363     std::ifstream stream(path.c_str());
364     if (!stream)
365         throw std::runtime_error("Failed to open " + path.str());
366 
367     stream >> std::noskipws;
368     std::istream_iterator< char > begin(stream), end;
369     std::ostream_iterator< char > out(std::cerr);
370     std::copy(begin, end, out);
371 
372     stream.close();
373 }
374 
375 static
376 bool
377 grep_file(const atf::fs::path& path, const std::string& regexp)
378 {
379     std::ifstream stream(path.c_str());
380     if (!stream)
381         throw std::runtime_error("Failed to open " + path.str());
382 
383     bool found = false;
384 
385     std::string line;
386     while (!found && !std::getline(stream, line).fail()) {
387         if (atf::text::match(line, regexp))
388             found = true;
389     }
390 
391     stream.close();
392 
393     return found;
394 }
395 
396 static
397 bool
398 file_empty(const atf::fs::path& p)
399 {
400     atf::fs::file_info f(p);
401 
402     return (f.get_size() == 0);
403 }
404 
405 static bool
406 compare_files(const atf::fs::path& p1, const atf::fs::path& p2)
407 {
408     bool equal = false;
409 
410     std::ifstream f1(p1.c_str());
411     if (!f1)
412         throw std::runtime_error("Failed to open " + p1.str());
413 
414     std::ifstream f2(p2.c_str());
415     if (!f2)
416         throw std::runtime_error("Failed to open " + p1.str());
417 
418     for (;;) {
419         char buf1[512], buf2[512];
420 
421         f1.read(buf1, sizeof(buf1));
422         if (f1.bad())
423             throw std::runtime_error("Failed to read from " + p1.str());
424 
425         f2.read(buf2, sizeof(buf2));
426         if (f2.bad())
427             throw std::runtime_error("Failed to read from " + p1.str());
428 
429         if ((f1.gcount() == 0) && (f2.gcount() == 0)) {
430             equal = true;
431             break;
432         }
433 
434         if ((f1.gcount() != f2.gcount()) ||
435             (std::memcmp(buf1, buf2, f1.gcount()) != 0)) {
436             break;
437         }
438     }
439 
440     return equal;
441 }
442 
443 static
444 void
445 print_diff(const atf::fs::path& p1, const atf::fs::path& p2)
446 {
447     const atf::process::status s =
448         atf::process::exec(atf::fs::path("diff"),
449                            atf::process::argv_array("diff", "-u", p1.c_str(),
450                                                     p2.c_str(), NULL),
451                            atf::process::stream_connect(STDOUT_FILENO,
452                                                         STDERR_FILENO),
453                            atf::process::stream_inherit());
454 
455     if (!s.exited())
456         std::cerr << "Failed to run diff(3)\n";
457 
458     if (s.exitstatus() != 1)
459         std::cerr << "Error while running diff(3)\n";
460 }
461 
462 static
463 std::string
464 decode(const std::string& s)
465 {
466     size_t i;
467     std::string res;
468 
469     res.reserve(s.length());
470 
471     i = 0;
472     while (i < s.length()) {
473         char c = s[i++];
474 
475         if (c == '\\') {
476             switch (s[i++]) {
477             case 'a': c = '\a'; break;
478             case 'b': c = '\b'; break;
479             case 'c': break;
480             case 'e': c = 033; break;
481             case 'f': c = '\f'; break;
482             case 'n': c = '\n'; break;
483             case 'r': c = '\r'; break;
484             case 't': c = '\t'; break;
485             case 'v': c = '\v'; break;
486             case '\\': break;
487             case '0':
488                 {
489                     int count = 3;
490                     c = 0;
491                     while (--count >= 0 && (unsigned)(s[i] - '0') < 8)
492                         c = (c << 3) + (s[i++] - '0');
493                     break;
494                 }
495             default:
496                 --i;
497                 break;
498             }
499         }
500 
501         res.push_back(c);
502     }
503 
504     return res;
505 }
506 
507 static
508 bool
509 run_status_check(const status_check& sc, const atf::check::check_result& cr)
510 {
511     bool result;
512 
513     if (sc.type == sc_exit) {
514         if (cr.exited() && sc.value != INT_MIN) {
515             const int status = cr.exitcode();
516 
517             if (!sc.negated && sc.value != status) {
518                 std::cerr << "Fail: incorrect exit status: "
519                           << status << ", expected: "
520                           << sc.value << "\n";
521                 result = false;
522             } else if (sc.negated && sc.value == status) {
523                 std::cerr << "Fail: incorrect exit status: "
524                           << status << ", expected: "
525                           << "anything else\n";
526                 result = false;
527             } else
528                 result = true;
529         } else if (cr.exited() && sc.value == INT_MIN) {
530             result = true;
531         } else {
532             std::cerr << "Fail: program did not exit cleanly\n";
533             result = false;
534         }
535     } else if (sc.type == sc_ignore) {
536         result = true;
537     } else if (sc.type == sc_signal) {
538         if (cr.signaled() && sc.value != INT_MIN) {
539             const int status = cr.termsig();
540 
541             if (!sc.negated && sc.value != status) {
542                 std::cerr << "Fail: incorrect signal received: "
543                           << status << ", expected: " << sc.value << "\n";
544                 result = false;
545             } else if (sc.negated && sc.value == status) {
546                 std::cerr << "Fail: incorrect signal received: "
547                           << status << ", expected: "
548                           << "anything else\n";
549                 result = false;
550             } else
551                 result = true;
552         } else if (cr.signaled() && sc.value == INT_MIN) {
553             result = true;
554         } else {
555             std::cerr << "Fail: program did not receive a signal\n";
556             result = false;
557         }
558     } else {
559         UNREACHABLE;
560         result = false;
561     }
562 
563     if (result == false) {
564         std::cerr << "stdout:\n";
565         cat_file(atf::fs::path(cr.stdout_path()));
566         std::cerr << "\n";
567 
568         std::cerr << "stderr:\n";
569         cat_file(atf::fs::path(cr.stderr_path()));
570         std::cerr << "\n";
571     }
572 
573     return result;
574 }
575 
576 static
577 bool
578 run_status_checks(const std::vector< status_check >& checks,
579                   const atf::check::check_result& result)
580 {
581     bool ok = false;
582 
583     for (std::vector< status_check >::const_iterator iter = checks.begin();
584          !ok && iter != checks.end(); iter++) {
585          ok |= run_status_check(*iter, result);
586     }
587 
588     return ok;
589 }
590 
591 static
592 bool
593 run_output_check(const output_check oc, const atf::fs::path& path,
594                  const std::string& stdxxx)
595 {
596     bool result;
597 
598     if (oc.type == oc_empty) {
599         const bool is_empty = file_empty(path);
600         if (!oc.negated && !is_empty) {
601             std::cerr << "Fail: " << stdxxx << " not empty\n";
602             print_diff(atf::fs::path("/dev/null"), path);
603             result = false;
604         } else if (oc.negated && is_empty) {
605             std::cerr << "Fail: " << stdxxx << " is empty\n";
606             result = false;
607         } else
608             result = true;
609     } else if (oc.type == oc_file) {
610         const bool equals = compare_files(path, atf::fs::path(oc.value));
611         if (!oc.negated && !equals) {
612             std::cerr << "Fail: " << stdxxx << " does not match golden "
613                 "output\n";
614             print_diff(atf::fs::path(oc.value), path);
615             result = false;
616         } else if (oc.negated && equals) {
617             std::cerr << "Fail: " << stdxxx << " matches golden output\n";
618             cat_file(atf::fs::path(oc.value));
619             result = false;
620         } else
621             result = true;
622     } else if (oc.type == oc_ignore) {
623         result = true;
624     } else if (oc.type == oc_inline) {
625         temp_file temp("atf-check.XXXXXX");
626         temp.write(decode(oc.value));
627         temp.close();
628 
629         const bool equals = compare_files(path, temp.get_path());
630         if (!oc.negated && !equals) {
631             std::cerr << "Fail: " << stdxxx << " does not match expected "
632                 "value\n";
633             print_diff(temp.get_path(), path);
634             result = false;
635         } else if (oc.negated && equals) {
636             std::cerr << "Fail: " << stdxxx << " matches expected value\n";
637             cat_file(temp.get_path());
638             result = false;
639         } else
640             result = true;
641     } else if (oc.type == oc_match) {
642         const bool matches = grep_file(path, oc.value);
643         if (!oc.negated && !matches) {
644             std::cerr << "Fail: regexp " + oc.value + " not in " << stdxxx
645                       << "\n";
646             cat_file(path);
647             result = false;
648         } else if (oc.negated && matches) {
649             std::cerr << "Fail: regexp " + oc.value + " is in " << stdxxx
650                       << "\n";
651             cat_file(path);
652             result = false;
653         } else
654             result = true;
655     } else if (oc.type == oc_save) {
656         INV(!oc.negated);
657         std::ifstream ifs(path.c_str(), std::fstream::binary);
658         ifs >> std::noskipws;
659         std::istream_iterator< char > begin(ifs), end;
660 
661         std::ofstream ofs(oc.value.c_str(), std::fstream::binary
662                                      | std::fstream::trunc);
663         std::ostream_iterator <char> obegin(ofs);
664 
665         std::copy(begin, end, obegin);
666         result = true;
667     } else {
668         UNREACHABLE;
669         result = false;
670     }
671 
672     return result;
673 }
674 
675 static
676 bool
677 run_output_checks(const std::vector< output_check >& checks,
678                   const atf::fs::path& path, const std::string& stdxxx)
679 {
680     bool ok = true;
681 
682     for (std::vector< output_check >::const_iterator iter = checks.begin();
683          iter != checks.end(); iter++) {
684          ok &= run_output_check(*iter, path, stdxxx);
685     }
686 
687     return ok;
688 }
689 
690 // ------------------------------------------------------------------------
691 // The "atf_check" application.
692 // ------------------------------------------------------------------------
693 
694 namespace {
695 
696 class atf_check : public atf::application::app {
697     bool m_xflag;
698 
699     std::vector< status_check > m_status_checks;
700     std::vector< output_check > m_stdout_checks;
701     std::vector< output_check > m_stderr_checks;
702 
703     static const char* m_description;
704 
705     bool run_output_checks(const atf::check::check_result&,
706                            const std::string&) const;
707 
708     std::string specific_args(void) const;
709     options_set specific_options(void) const;
710     void process_option(int, const char*);
711     void process_option_s(const std::string&);
712 
713 public:
714     atf_check(void);
715     int main(void);
716 };
717 
718 } // anonymous namespace
719 
720 const char* atf_check::m_description =
721     "atf-check executes given command and analyzes its results.";
722 
723 atf_check::atf_check(void) :
724     app(m_description, "atf-check(1)"),
725     m_xflag(false)
726 {
727 }
728 
729 bool
730 atf_check::run_output_checks(const atf::check::check_result& r,
731                              const std::string& stdxxx)
732     const
733 {
734     if (stdxxx == "stdout") {
735         return ::run_output_checks(m_stdout_checks,
736             atf::fs::path(r.stdout_path()), "stdout");
737     } else if (stdxxx == "stderr") {
738         return ::run_output_checks(m_stderr_checks,
739             atf::fs::path(r.stderr_path()), "stderr");
740     } else {
741         UNREACHABLE;
742         return false;
743     }
744 }
745 
746 std::string
747 atf_check::specific_args(void)
748     const
749 {
750     return "<command>";
751 }
752 
753 atf_check::options_set
754 atf_check::specific_options(void)
755     const
756 {
757     using atf::application::option;
758     options_set opts;
759 
760     opts.insert(option('s', "qual:value", "Handle status. Qualifier "
761                 "must be one of: ignore exit:<num> signal:<name|num>"));
762     opts.insert(option('o', "action:arg", "Handle stdout. Action must be "
763                 "one of: empty ignore file:<path> inline:<val> match:regexp "
764                 "save:<path>"));
765     opts.insert(option('e', "action:arg", "Handle stderr. Action must be "
766                 "one of: empty ignore file:<path> inline:<val> match:regexp "
767                 "save:<path>"));
768     opts.insert(option('x', "", "Execute command as a shell command"));
769 
770     return opts;
771 }
772 
773 void
774 atf_check::process_option(int ch, const char* arg)
775 {
776     switch (ch) {
777     case 's':
778         m_status_checks.push_back(parse_status_check_arg(arg));
779         break;
780 
781     case 'o':
782         m_stdout_checks.push_back(parse_output_check_arg(arg));
783         break;
784 
785     case 'e':
786         m_stderr_checks.push_back(parse_output_check_arg(arg));
787         break;
788 
789     case 'x':
790         m_xflag = true;
791         break;
792 
793     default:
794         UNREACHABLE;
795     }
796 }
797 
798 int
799 atf_check::main(void)
800 {
801     if (m_argc < 1)
802         throw atf::application::usage_error("No command specified");
803 
804     int status = EXIT_FAILURE;
805 
806     std::auto_ptr< atf::check::check_result > r =
807         m_xflag ? execute_with_shell(m_argv) : execute(m_argv);
808 
809     if (m_status_checks.empty())
810         m_status_checks.push_back(status_check(sc_exit, false, EXIT_SUCCESS));
811     else if (m_status_checks.size() > 1) {
812         // TODO: Remove this restriction.
813         throw atf::application::usage_error("Cannot specify -s more than once");
814     }
815 
816     if (m_stdout_checks.empty())
817         m_stdout_checks.push_back(output_check(oc_empty, false, ""));
818     if (m_stderr_checks.empty())
819         m_stderr_checks.push_back(output_check(oc_empty, false, ""));
820 
821     if ((run_status_checks(m_status_checks, *r) == false) ||
822         (run_output_checks(*r, "stderr") == false) ||
823         (run_output_checks(*r, "stdout") == false))
824         status = EXIT_FAILURE;
825     else
826         status = EXIT_SUCCESS;
827 
828     return status;
829 }
830 
831 int
832 main(int argc, char* const* argv)
833 {
834     return atf_check().run(argc, argv);
835 }
836