1 | /* Copyright (C) 2008-2022 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 | #include <stdarg.h> |
19 | #include <stdio.h> |
20 | #include <stdlib.h> |
21 | #include <string.h> |
22 | #include <wchar.h> |
23 | |
24 | #if __GLIBC_USE_DEPRECATED_SCANF |
25 | # error "This file should not be compiled with deprecated scanf" |
26 | #endif |
27 | |
28 | #define FAIL() \ |
29 | do { \ |
30 | result = 1; \ |
31 | printf ("test at line %d failed\n", __LINE__); \ |
32 | } while (0) |
33 | |
34 | static int __attribute__ ((format (scanf, 2, 3))) |
35 | xsscanf (const char *str, const char *fmt, ...) |
36 | { |
37 | va_list ap; |
38 | va_start (ap, fmt); |
39 | int ret = vsscanf (s: str, format: fmt, arg: ap); |
40 | va_end (ap); |
41 | return ret; |
42 | } |
43 | |
44 | static int __attribute__ ((format (scanf, 1, 2))) |
45 | xscanf (const char *fmt, ...) |
46 | { |
47 | va_list ap; |
48 | va_start (ap, fmt); |
49 | int ret = vscanf (format: fmt, arg: ap); |
50 | va_end (ap); |
51 | return ret; |
52 | } |
53 | |
54 | static int __attribute__ ((format (scanf, 2, 3))) |
55 | xfscanf (FILE *f, const char *fmt, ...) |
56 | { |
57 | va_list ap; |
58 | va_start (ap, fmt); |
59 | int ret = vfscanf (s: f, format: fmt, arg: ap); |
60 | va_end (ap); |
61 | return ret; |
62 | } |
63 | |
64 | int |
65 | main (void) |
66 | { |
67 | wchar_t *lsp; |
68 | char *sp; |
69 | float f; |
70 | double d; |
71 | char c[8]; |
72 | int result = 0; |
73 | |
74 | if (xsscanf (str: " 0.25s x" , fmt: "%e%3c" , &f, c) != 2) |
75 | FAIL (); |
76 | else if (f != 0.25 || memcmp (c, "s x" , 3) != 0) |
77 | FAIL (); |
78 | if (xsscanf (str: " 1.25s x" , fmt: "%ms%2c" , &sp, c) != 2) |
79 | FAIL (); |
80 | else |
81 | { |
82 | if (strcmp (sp, "1.25s" ) != 0 || memcmp (c, " x" , 2) != 0) |
83 | FAIL (); |
84 | memset (sp, 'x', sizeof "1.25s" ); |
85 | free (ptr: sp); |
86 | } |
87 | if (xsscanf (str: " 2.25s x" , fmt: "%las%2c" , &d, c) != 2) |
88 | FAIL (); |
89 | else if (d != 2.25 || memcmp (c, " x" , 2) != 0) |
90 | FAIL (); |
91 | if (xsscanf (str: " 3.25S x" , fmt: "%4mS%3c" , &lsp, c) != 2) |
92 | FAIL (); |
93 | else |
94 | { |
95 | if (wcscmp (s1: lsp, s2: L"3.25" ) != 0 || memcmp (c, "S x" , 3) != 0) |
96 | FAIL (); |
97 | memset (lsp, 'x', sizeof L"3.25" ); |
98 | free (ptr: lsp); |
99 | } |
100 | if (xsscanf (str: "4.25[0-9.] x" , fmt: "%m[0-9.]%8c" , &sp, c) != 2) |
101 | FAIL (); |
102 | else |
103 | { |
104 | if (strcmp (sp, "4.25" ) != 0 || memcmp (c, "[0-9.] x" , 8) != 0) |
105 | FAIL (); |
106 | memset (sp, 'x', sizeof "4.25" ); |
107 | free (ptr: sp); |
108 | } |
109 | if (xsscanf (str: "5.25[0-9.] x" , fmt: "%la[0-9.]%2c" , &d, c) != 2) |
110 | FAIL (); |
111 | else if (d != 5.25 || memcmp (c, " x" , 2) != 0) |
112 | FAIL (); |
113 | |
114 | const char *tmpdir = getenv ("TMPDIR" ); |
115 | if (tmpdir == NULL || tmpdir[0] == '\0') |
116 | tmpdir = "/tmp" ; |
117 | |
118 | char fname[strlen (tmpdir) + sizeof "/tst-scanf16.XXXXXX" ]; |
119 | sprintf (fname, "%s/tst-scanf16.XXXXXX" , tmpdir); |
120 | |
121 | /* Create a temporary file. */ |
122 | int fd = mkstemp (template: fname); |
123 | if (fd == -1) |
124 | FAIL (); |
125 | |
126 | FILE *fp = fdopen (fd, "w+" ); |
127 | if (fp == NULL) |
128 | FAIL (); |
129 | else |
130 | { |
131 | if (fputs (" 1.25s x" , fp) == EOF) |
132 | FAIL (); |
133 | if (fseek (fp, 0, SEEK_SET) != 0) |
134 | FAIL (); |
135 | if (xfscanf (f: fp, fmt: "%ms%2c" , &sp, c) != 2) |
136 | FAIL (); |
137 | else |
138 | { |
139 | if (strcmp (sp, "1.25s" ) != 0 || memcmp (c, " x" , 2) != 0) |
140 | FAIL (); |
141 | memset (sp, 'x', sizeof "1.25s" ); |
142 | free (ptr: sp); |
143 | } |
144 | |
145 | if (freopen (filename: fname, modes: "r" , stdin) == NULL) |
146 | FAIL (); |
147 | else |
148 | { |
149 | if (xscanf (fmt: "%ms%2c" , &sp, c) != 2) |
150 | FAIL (); |
151 | else |
152 | { |
153 | if (strcmp (sp, "1.25s" ) != 0 || memcmp (c, " x" , 2) != 0) |
154 | FAIL (); |
155 | memset (sp, 'x', sizeof "1.25s" ); |
156 | free (ptr: sp); |
157 | } |
158 | } |
159 | |
160 | fclose (fp); |
161 | } |
162 | |
163 | remove (fname); |
164 | |
165 | return result; |
166 | } |
167 | |