1 | /* Copyright (C) 2007-2022 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | /* This test exercises the deprecated GNU %as, %aS, and %a[...] scanf |
19 | modifiers, which are not available to programs compiled as C99 |
20 | anymore; therefore, this file is compiled with -std=gnu89 and C99 |
21 | syntax must not be used. */ |
22 | |
23 | #include <stdio.h> |
24 | #include <stdlib.h> |
25 | #include <string.h> |
26 | #include <wchar.h> |
27 | |
28 | #if !__GLIBC_USE_DEPRECATED_SCANF |
29 | # error "This file should be compiled with deprecated scanf" |
30 | #endif |
31 | |
32 | |
33 | #define FAIL() \ |
34 | do { \ |
35 | result = 1; \ |
36 | printf ("test at line %d failed\n", __LINE__); \ |
37 | } while (0) |
38 | |
39 | int |
40 | main (void) |
41 | { |
42 | wchar_t *lsp; |
43 | char *sp; |
44 | float f; |
45 | double d; |
46 | char c[8]; |
47 | int result = 0; |
48 | |
49 | if (sscanf (" 0.25s x" , "%e%3c" , &f, c) != 2) |
50 | FAIL (); |
51 | else if (f != 0.25 || memcmp (c, "s x" , 3) != 0) |
52 | FAIL (); |
53 | if (sscanf (" 1.25s x" , "%as%2c" , &sp, c) != 2) |
54 | FAIL (); |
55 | else |
56 | { |
57 | if (strcmp (sp, "1.25s" ) != 0 || memcmp (c, " x" , 2) != 0) |
58 | FAIL (); |
59 | memset (sp, 'x', sizeof "1.25s" ); |
60 | free (ptr: sp); |
61 | } |
62 | if (sscanf (" 2.25s x" , "%las%2c" , &d, c) != 2) |
63 | FAIL (); |
64 | else if (d != 2.25 || memcmp (c, " x" , 2) != 0) |
65 | FAIL (); |
66 | if (sscanf (" 3.25S x" , "%4aS%3c" , &lsp, c) != 2) |
67 | FAIL (); |
68 | else |
69 | { |
70 | if (wcscmp (s1: lsp, s2: L"3.25" ) != 0 || memcmp (c, "S x" , 3) != 0) |
71 | FAIL (); |
72 | memset (lsp, 'x', sizeof L"3.25" ); |
73 | free (ptr: lsp); |
74 | } |
75 | if (sscanf ("4.25[0-9.] x" , "%a[0-9.]%8c" , &sp, c) != 2) |
76 | FAIL (); |
77 | else |
78 | { |
79 | if (strcmp (sp, "4.25" ) != 0 || memcmp (c, "[0-9.] x" , 8) != 0) |
80 | FAIL (); |
81 | memset (sp, 'x', sizeof "4.25" ); |
82 | free (ptr: sp); |
83 | } |
84 | if (sscanf ("5.25[0-9.] x" , "%la[0-9.]%2c" , &d, c) != 2) |
85 | FAIL (); |
86 | else if (d != 5.25 || memcmp (c, " x" , 2) != 0) |
87 | FAIL (); |
88 | |
89 | const char *tmpdir = getenv ("TMPDIR" ); |
90 | if (tmpdir == NULL || tmpdir[0] == '\0') |
91 | tmpdir = "/tmp" ; |
92 | |
93 | char fname[strlen (tmpdir) + sizeof "/tst-scanf14.XXXXXX" ]; |
94 | sprintf (fname, "%s/tst-scanf14.XXXXXX" , tmpdir); |
95 | |
96 | /* Create a temporary file. */ |
97 | int fd = mkstemp (template: fname); |
98 | if (fd == -1) |
99 | FAIL (); |
100 | |
101 | FILE *fp = fdopen (fd, "w+" ); |
102 | if (fp == NULL) |
103 | FAIL (); |
104 | else |
105 | { |
106 | if (fputs (" 1.25s x" , fp) == EOF) |
107 | FAIL (); |
108 | if (fseek (fp, 0, SEEK_SET) != 0) |
109 | FAIL (); |
110 | if (fscanf (stream: fp, format: "%as%2c" , &sp, c) != 2) |
111 | FAIL (); |
112 | else |
113 | { |
114 | if (strcmp (sp, "1.25s" ) != 0 || memcmp (c, " x" , 2) != 0) |
115 | FAIL (); |
116 | memset (sp, 'x', sizeof "1.25s" ); |
117 | free (ptr: sp); |
118 | } |
119 | |
120 | if (freopen (filename: fname, modes: "r" , stdin) == NULL) |
121 | FAIL (); |
122 | else |
123 | { |
124 | if (scanf (format: "%as%2c" , &sp, c) != 2) |
125 | FAIL (); |
126 | else |
127 | { |
128 | if (strcmp (sp, "1.25s" ) != 0 || memcmp (c, " x" , 2) != 0) |
129 | FAIL (); |
130 | memset (sp, 'x', sizeof "1.25s" ); |
131 | free (ptr: sp); |
132 | } |
133 | } |
134 | |
135 | fclose (fp); |
136 | } |
137 | |
138 | remove (fname); |
139 | |
140 | return result; |
141 | } |
142 | |