xref: /netbsd/external/bsd/atf/dist/atf-c/check.c (revision 6550d01e) 
1 /*
2  * Automated Testing Framework (atf)
3  *
4  * Copyright (c) 2008, 2009, 2010 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 #include <sys/wait.h>
31 
32 #include <errno.h>
33 #include <fcntl.h>
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <string.h>
37 #include <unistd.h>
38 
39 #include "atf-c/build.h"
40 #include "atf-c/check.h"
41 #include "atf-c/config.h"
42 #include "atf-c/defs.h"
43 #include "atf-c/error.h"
44 #include "atf-c/utils.h"
45 
46 #include "detail/dynstr.h"
47 #include "detail/fs.h"
48 #include "detail/list.h"
49 #include "detail/process.h"
50 #include "detail/sanity.h"
51 
52 /* ---------------------------------------------------------------------
53  * Auxiliary functions.
54  * --------------------------------------------------------------------- */
55 
56 static
57 atf_error_t
58 create_tmpdir(atf_fs_path_t *dir)
59 {
60     atf_error_t err;
61 
62     err = atf_fs_path_init_fmt(dir, "%s/check.XXXXXX",
63                                atf_config_get("atf_workdir"));
64     if (atf_is_error(err))
65         goto out;
66 
67     err = atf_fs_mkdtemp(dir);
68     if (atf_is_error(err)) {
69         atf_fs_path_fini(dir);
70         goto out;
71     }
72 
73     INV(!atf_is_error(err));
74 out:
75     return err;
76 }
77 
78 static
79 void
80 cleanup_tmpdir(const atf_fs_path_t *dir, const atf_fs_path_t *outfile,
81                const atf_fs_path_t *errfile)
82 {
83     {
84         atf_error_t err = atf_fs_unlink(outfile);
85         if (atf_is_error(err)) {
86             INV(atf_error_is(err, "libc") &&
87                 atf_libc_error_code(err) == ENOENT);
88             atf_error_free(err);
89         } else
90             INV(!atf_is_error(err));
91     }
92 
93     {
94         atf_error_t err = atf_fs_unlink(errfile);
95         if (atf_is_error(err)) {
96             INV(atf_error_is(err, "libc") &&
97                 atf_libc_error_code(err) == ENOENT);
98             atf_error_free(err);
99         } else
100             INV(!atf_is_error(err));
101     }
102 
103     {
104         atf_error_t err = atf_fs_rmdir(dir);
105         INV(!atf_is_error(err));
106     }
107 }
108 
109 static
110 int
111 const_execvp(const char *file, const char *const *argv)
112 {
113 #define UNCONST(a) ((void *)(unsigned long)(const void *)(a))
114     return execvp(file, UNCONST(argv));
115 #undef UNCONST
116 }
117 
118 static
119 atf_error_t
120 init_sb(const atf_fs_path_t *path, atf_process_stream_t *sb)
121 {
122     atf_error_t err;
123 
124     if (path == NULL)
125         err = atf_process_stream_init_inherit(sb);
126     else
127         err = atf_process_stream_init_redirect_path(sb, path);
128 
129     return err;
130 }
131 
132 static
133 atf_error_t
134 init_sbs(const atf_fs_path_t *outfile, atf_process_stream_t *outsb,
135          const atf_fs_path_t *errfile, atf_process_stream_t *errsb)
136 {
137     atf_error_t err;
138 
139     err = init_sb(outfile, outsb);
140     if (atf_is_error(err))
141         goto out;
142 
143     err = init_sb(errfile, errsb);
144     if (atf_is_error(err)) {
145         atf_process_stream_fini(outsb);
146         goto out;
147     }
148 
149 out:
150     return err;
151 }
152 
153 struct exec_data {
154     const char *const *m_argv;
155 };
156 
157 static void exec_child(void *) ATF_DEFS_ATTRIBUTE_NORETURN;
158 
159 static
160 void
161 exec_child(void *v)
162 {
163     struct exec_data *ea = v;
164 
165     const_execvp(ea->m_argv[0], ea->m_argv);
166     fprintf(stderr, "execvp(%s) failed: %s\n", ea->m_argv[0], strerror(errno));
167     exit(127);
168 }
169 
170 static
171 atf_error_t
172 fork_and_wait(const char *const *argv, const atf_fs_path_t *outfile,
173               const atf_fs_path_t *errfile, atf_process_status_t *status)
174 {
175     atf_error_t err;
176     atf_process_child_t child;
177     atf_process_stream_t outsb, errsb;
178     struct exec_data ea = { argv };
179 
180     err = init_sbs(outfile, &outsb, errfile, &errsb);
181     if (atf_is_error(err))
182         goto out;
183 
184     err = atf_process_fork(&child, exec_child, &outsb, &errsb, &ea);
185     if (atf_is_error(err))
186         goto out_sbs;
187 
188     err = atf_process_child_wait(&child, status);
189 
190 out_sbs:
191     atf_process_stream_fini(&errsb);
192     atf_process_stream_fini(&outsb);
193 out:
194     return err;
195 }
196 
197 static
198 void
199 update_success_from_status(const char *progname,
200                            const atf_process_status_t *status, bool *success)
201 {
202     bool s = atf_process_status_exited(status) &&
203              atf_process_status_exitstatus(status) == EXIT_SUCCESS;
204 
205     if (atf_process_status_exited(status)) {
206         if (atf_process_status_exitstatus(status) == EXIT_SUCCESS)
207             INV(s);
208         else {
209             INV(!s);
210             fprintf(stderr, "%s failed with exit code %d\n", progname,
211                     atf_process_status_exitstatus(status));
212         }
213     } else if (atf_process_status_signaled(status)) {
214         INV(!s);
215         fprintf(stderr, "%s failed due to signal %d%s\n", progname,
216                 atf_process_status_termsig(status),
217                 atf_process_status_coredump(status) ? " (core dumped)" : "");
218     } else {
219         INV(!s);
220         fprintf(stderr, "%s failed due to unknown reason\n", progname);
221     }
222 
223     *success = s;
224 }
225 
226 static
227 atf_error_t
228 array_to_list(const char *const *a, atf_list_t *l)
229 {
230     atf_error_t err;
231 
232     err = atf_list_init(l);
233     if (atf_is_error(err))
234         goto out;
235 
236     while (*a != NULL) {
237         char *item = strdup(*a);
238         if (item == NULL) {
239             err = atf_no_memory_error();
240             goto out;
241         }
242 
243         err = atf_list_append(l, item, true);
244         if (atf_is_error(err))
245             goto out;
246 
247         a++;
248     }
249 
250 out:
251     return err;
252 }
253 
254 static void
255 print_array(const char *const *array, const char *pfx)
256 {
257     const char *const *ptr;
258 
259     printf("%s", pfx);
260     for (ptr = array; *ptr != NULL; ptr++)
261         printf(" %s", *ptr);
262     printf("\n");
263 }
264 
265 static
266 atf_error_t
267 check_build_run(const char *const *argv, bool *success)
268 {
269     atf_error_t err;
270     atf_process_status_t status;
271 
272     print_array(argv, ">");
273 
274     err = fork_and_wait(argv, NULL, NULL, &status);
275     if (atf_is_error(err))
276         goto out;
277 
278     update_success_from_status(argv[0], &status, success);
279     atf_process_status_fini(&status);
280 
281     INV(!atf_is_error(err));
282 out:
283     return err;
284 }
285 
286 /* ---------------------------------------------------------------------
287  * The "atf_check_result" type.
288  * --------------------------------------------------------------------- */
289 
290 struct atf_check_result_impl {
291     atf_list_t m_argv;
292     atf_fs_path_t m_dir;
293     atf_fs_path_t m_stdout;
294     atf_fs_path_t m_stderr;
295     atf_process_status_t m_status;
296 };
297 
298 static
299 atf_error_t
300 atf_check_result_init(atf_check_result_t *r, const char *const *argv,
301                       const atf_fs_path_t *dir)
302 {
303     atf_error_t err;
304     const char *workdir;
305 
306     r->pimpl = malloc(sizeof(struct atf_check_result_impl));
307     if (r->pimpl == NULL)
308         return atf_no_memory_error();
309 
310     workdir = atf_config_get("atf_workdir");
311 
312     err = array_to_list(argv, &r->pimpl->m_argv);
313     if (atf_is_error(err))
314         goto out;
315 
316     err = atf_fs_path_copy(&r->pimpl->m_dir, dir);
317     if (atf_is_error(err))
318         goto err_argv;
319 
320     err = atf_fs_path_init_fmt(&r->pimpl->m_stdout, "%s/stdout",
321                                atf_fs_path_cstring(dir));
322     if (atf_is_error(err))
323         goto err_dir;
324 
325     err = atf_fs_path_init_fmt(&r->pimpl->m_stderr, "%s/stderr",
326                                atf_fs_path_cstring(dir));
327     if (atf_is_error(err))
328         goto err_stdout;
329 
330     INV(!atf_is_error(err));
331     goto out;
332 
333 err_stdout:
334     atf_fs_path_fini(&r->pimpl->m_stdout);
335 err_dir:
336     atf_fs_path_fini(&r->pimpl->m_dir);
337 err_argv:
338     atf_list_fini(&r->pimpl->m_argv);
339 out:
340     return err;
341 }
342 
343 void
344 atf_check_result_fini(atf_check_result_t *r)
345 {
346     atf_process_status_fini(&r->pimpl->m_status);
347 
348     cleanup_tmpdir(&r->pimpl->m_dir, &r->pimpl->m_stdout,
349                    &r->pimpl->m_stderr);
350     atf_fs_path_fini(&r->pimpl->m_stdout);
351     atf_fs_path_fini(&r->pimpl->m_stderr);
352     atf_fs_path_fini(&r->pimpl->m_dir);
353 
354     atf_list_fini(&r->pimpl->m_argv);
355 
356     free(r->pimpl);
357 }
358 
359 const char *
360 atf_check_result_stdout(const atf_check_result_t *r)
361 {
362     return atf_fs_path_cstring(&r->pimpl->m_stdout);
363 }
364 
365 const char *
366 atf_check_result_stderr(const atf_check_result_t *r)
367 {
368     return atf_fs_path_cstring(&r->pimpl->m_stderr);
369 }
370 
371 bool
372 atf_check_result_exited(const atf_check_result_t *r)
373 {
374     return atf_process_status_exited(&r->pimpl->m_status);
375 }
376 
377 int
378 atf_check_result_exitcode(const atf_check_result_t *r)
379 {
380     return atf_process_status_exitstatus(&r->pimpl->m_status);
381 }
382 
383 bool
384 atf_check_result_signaled(const atf_check_result_t *r)
385 {
386     return atf_process_status_signaled(&r->pimpl->m_status);
387 }
388 
389 int
390 atf_check_result_termsig(const atf_check_result_t *r)
391 {
392     return atf_process_status_termsig(&r->pimpl->m_status);
393 }
394 
395 /* ---------------------------------------------------------------------
396  * Free functions.
397  * --------------------------------------------------------------------- */
398 
399 /* XXX: This function shouldn't be in this module.  It messes with stdout
400  * and stderr, and it provides a very high-end interface.  This belongs,
401  * probably, somewhere related to test cases (such as in the tc module). */
402 atf_error_t
403 atf_check_build_c_o(const char *sfile,
404                     const char *ofile,
405                     const char *const optargs[],
406                     bool *success)
407 {
408     atf_error_t err;
409     char **argv;
410 
411     err = atf_build_c_o(sfile, ofile, optargs, &argv);
412     if (atf_is_error(err))
413         goto out;
414 
415     err = check_build_run((const char *const *)argv, success);
416 
417     atf_utils_free_charpp(argv);
418 out:
419     return err;
420 }
421 
422 atf_error_t
423 atf_check_build_cpp(const char *sfile,
424                     const char *ofile,
425                     const char *const optargs[],
426                     bool *success)
427 {
428     atf_error_t err;
429     char **argv;
430 
431     err = atf_build_cpp(sfile, ofile, optargs, &argv);
432     if (atf_is_error(err))
433         goto out;
434 
435     err = check_build_run((const char *const *)argv, success);
436 
437     atf_utils_free_charpp(argv);
438 out:
439     return err;
440 }
441 
442 atf_error_t
443 atf_check_build_cxx_o(const char *sfile,
444                       const char *ofile,
445                       const char *const optargs[],
446                       bool *success)
447 {
448     atf_error_t err;
449     char **argv;
450 
451     err = atf_build_cxx_o(sfile, ofile, optargs, &argv);
452     if (atf_is_error(err))
453         goto out;
454 
455     err = check_build_run((const char *const *)argv, success);
456 
457     atf_utils_free_charpp(argv);
458 out:
459     return err;
460 }
461 
462 atf_error_t
463 atf_check_exec_array(const char *const *argv, atf_check_result_t *r)
464 {
465     atf_error_t err;
466     atf_fs_path_t dir;
467 
468     err = create_tmpdir(&dir);
469     if (atf_is_error(err))
470         goto out;
471 
472     err = atf_check_result_init(r, argv, &dir);
473     if (atf_is_error(err)) {
474         atf_error_t err2 = atf_fs_rmdir(&dir);
475         INV(!atf_is_error(err2));
476         goto out;
477     }
478 
479     err = fork_and_wait(argv, &r->pimpl->m_stdout, &r->pimpl->m_stderr,
480                         &r->pimpl->m_status);
481     if (atf_is_error(err)) {
482         atf_check_result_fini(r);
483         goto out;
484     }
485 
486     INV(!atf_is_error(err));
487 
488     atf_fs_path_fini(&dir);
489 out:
490     return err;
491 }
492