1 | /* Test the %m, %#m printf specifiers via asprintf. |
2 | Copyright (C) 2021-2022 Free Software Foundation, Inc. |
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 |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <errno.h> |
20 | #include <libc-diag.h> |
21 | #include <stdio.h> |
22 | #include <support/check.h> |
23 | #include <support/support.h> |
24 | |
25 | /* GCC does not yet know about the %#m specifier. */ |
26 | DIAG_PUSH_NEEDS_COMMENT; |
27 | DIAG_IGNORE_NEEDS_COMMENT (11, "-Wformat=" ); |
28 | |
29 | static int |
30 | do_test (void) |
31 | { |
32 | char buf[64]; |
33 | |
34 | errno = EINVAL; |
35 | TEST_COMPARE (sprintf (buf, "%m" ), 16); |
36 | TEST_COMPARE_STRING (buf, "Invalid argument" ); |
37 | |
38 | errno = EINVAL; |
39 | TEST_COMPARE (sprintf (buf, "%#m" ), 6); |
40 | TEST_COMPARE_STRING (buf, "EINVAL" ); |
41 | |
42 | errno = 0; |
43 | TEST_COMPARE (sprintf (buf, "%m" ), 7); |
44 | TEST_COMPARE_STRING (buf, "Success" ); |
45 | |
46 | errno = 0; |
47 | TEST_COMPARE (sprintf (buf, "%#m" ), 1); |
48 | TEST_COMPARE_STRING (buf, "0" ); |
49 | |
50 | errno = -1; |
51 | #ifdef __GNU__ |
52 | TEST_COMPARE (sprintf (buf, "%m" ), 35); |
53 | TEST_COMPARE_STRING (buf, "Error in unknown error system: : -1" ); |
54 | #else |
55 | TEST_COMPARE (sprintf (buf, "%m" ), 16); |
56 | TEST_COMPARE_STRING (buf, "Unknown error -1" ); |
57 | #endif |
58 | |
59 | errno = -1; |
60 | TEST_COMPARE (sprintf (buf, "%#m" ), 2); |
61 | TEST_COMPARE_STRING (buf, "-1" ); |
62 | |
63 | errno = 1002003; |
64 | #ifdef __GNU__ |
65 | TEST_COMPARE (sprintf (buf, "%m" ), 42); |
66 | TEST_COMPARE_STRING (buf, "(system kern) error with unknown subsystem" ); |
67 | #else |
68 | TEST_COMPARE (sprintf (buf, "%m" ), 21); |
69 | TEST_COMPARE_STRING (buf, "Unknown error 1002003" ); |
70 | #endif |
71 | |
72 | errno = 1002003; |
73 | TEST_COMPARE (sprintf (buf, "%#m" ), 7); |
74 | TEST_COMPARE_STRING (buf, "1002003" ); |
75 | |
76 | errno = EINVAL; |
77 | TEST_COMPARE (sprintf (buf, "%20m" ), 20); |
78 | TEST_COMPARE_STRING (buf, " Invalid argument" ); |
79 | |
80 | errno = EINVAL; |
81 | TEST_COMPARE (sprintf (buf, "%#20m" ), 20); |
82 | TEST_COMPARE_STRING (buf, " EINVAL" ); |
83 | |
84 | errno = EINVAL; |
85 | TEST_COMPARE (sprintf (buf, "%-20m" ), 20); |
86 | TEST_COMPARE_STRING (buf, "Invalid argument " ); |
87 | |
88 | errno = EINVAL; |
89 | TEST_COMPARE (sprintf (buf, "%-#20m" ), 20); |
90 | TEST_COMPARE_STRING (buf, "EINVAL " ); |
91 | |
92 | errno = 0; |
93 | TEST_COMPARE (sprintf (buf, "%-20m" ), 20); |
94 | TEST_COMPARE_STRING (buf, "Success " ); |
95 | |
96 | errno = 0; |
97 | TEST_COMPARE (sprintf (buf, "%-#20m" ), 20); |
98 | TEST_COMPARE_STRING (buf, "0 " ); |
99 | |
100 | return 0; |
101 | } |
102 | |
103 | #include <support/test-driver.c> |
104 | |