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2714c5f3 | 1 | /* Verify capture output from a subprocess. |
d614a753 | 2 | Copyright (C) 2017-2020 Free Software Foundation, Inc. |
2714c5f3 FW |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
2714c5f3 FW |
18 | |
19 | #include <stdbool.h> | |
20 | #include <stdio.h> | |
21 | #include <support/capture_subprocess.h> | |
22 | #include <support/check.h> | |
96cd0558 | 23 | #include <sys/wait.h> |
2714c5f3 FW |
24 | |
25 | static void | |
26 | print_context (const char *context, bool *failed) | |
27 | { | |
28 | if (*failed) | |
29 | /* Do not duplicate message. */ | |
30 | return; | |
31 | support_record_failure (); | |
32 | printf ("error: subprocess failed: %s\n", context); | |
33 | } | |
34 | ||
96cd0558 FW |
35 | static void |
36 | print_actual_status (struct support_capture_subprocess *proc) | |
37 | { | |
38 | if (WIFEXITED (proc->status)) | |
39 | printf ("error: actual exit status: %d [0x%x]\n", | |
40 | WEXITSTATUS (proc->status), proc->status); | |
41 | else if (WIFSIGNALED (proc->status)) | |
42 | printf ("error: actual termination signal: %d [0x%x]\n", | |
43 | WTERMSIG (proc->status), proc->status); | |
44 | else | |
45 | printf ("error: actual undecoded exit status: [0x%x]\n", proc->status); | |
46 | } | |
47 | ||
2714c5f3 FW |
48 | void |
49 | support_capture_subprocess_check (struct support_capture_subprocess *proc, | |
96cd0558 | 50 | const char *context, int status_or_signal, |
2714c5f3 FW |
51 | int allowed) |
52 | { | |
53 | TEST_VERIFY ((allowed & sc_allow_none) | |
54 | || (allowed & sc_allow_stdout) | |
55 | || (allowed & sc_allow_stderr)); | |
56 | TEST_VERIFY (!((allowed & sc_allow_none) | |
57 | && ((allowed & sc_allow_stdout) | |
58 | || (allowed & sc_allow_stderr)))); | |
59 | ||
60 | bool failed = false; | |
96cd0558 | 61 | if (status_or_signal >= 0) |
2714c5f3 | 62 | { |
96cd0558 FW |
63 | /* Expect regular termination. */ |
64 | if (!(WIFEXITED (proc->status) | |
65 | && WEXITSTATUS (proc->status) == status_or_signal)) | |
66 | { | |
67 | print_context (context, &failed); | |
68 | printf ("error: expected exit status: %d\n", status_or_signal); | |
69 | print_actual_status (proc); | |
70 | } | |
71 | } | |
72 | else | |
73 | { | |
74 | /* status_or_signal < 0. Expect termination by signal. */ | |
75 | if (!(WIFSIGNALED (proc->status) | |
76 | && WTERMSIG (proc->status) == -status_or_signal)) | |
77 | { | |
78 | print_context (context, &failed); | |
79 | printf ("error: expected termination signal: %d\n", | |
80 | -status_or_signal); | |
81 | print_actual_status (proc); | |
82 | } | |
2714c5f3 FW |
83 | } |
84 | if (!(allowed & sc_allow_stdout) && proc->out.length != 0) | |
85 | { | |
86 | print_context (context, &failed); | |
87 | printf ("error: unexpected output from subprocess\n"); | |
88 | fwrite (proc->out.buffer, proc->out.length, 1, stdout); | |
89 | puts ("\n"); | |
90 | } | |
91 | if (!(allowed & sc_allow_stderr) && proc->err.length != 0) | |
92 | { | |
93 | print_context (context, &failed); | |
94 | printf ("error: unexpected error output from subprocess\n"); | |
95 | fwrite (proc->err.buffer, proc->err.length, 1, stdout); | |
96 | puts ("\n"); | |
97 | } | |
98 | } |