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 |
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 |
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 |
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 | float f; |
68 | double d; |
69 | char c[8]; |
70 | int result = 0; |
71 | |
72 | if (xsscanf (str: " 0.25s x" , fmt: "%e%3c" , &f, c) != 2) |
73 | FAIL (); |
74 | else if (f != 0.25 || memcmp (c, "s x" , 3) != 0) |
75 | FAIL (); |
76 | if (xsscanf (str: " 1.25s x" , fmt: "%as%2c" , &f, c) != 2) |
77 | FAIL (); |
78 | else if (f != 1.25 || memcmp (c, " x" , 2) != 0) |
79 | FAIL (); |
80 | if (xsscanf (str: " 2.25s x" , fmt: "%las%2c" , &d, c) != 2) |
81 | FAIL (); |
82 | else if (d != 2.25 || memcmp (c, " x" , 2) != 0) |
83 | FAIL (); |
84 | if (xsscanf (str: " 3.25S x" , fmt: "%4aS%2c" , &f, c) != 2) |
85 | FAIL (); |
86 | else if (f != 3.25 || memcmp (c, " x" , 2) != 0) |
87 | FAIL (); |
88 | if (xsscanf (str: " 4.25[0-9.] x" , fmt: "%a[0-9.]%2c" , &f, c) != 2) |
89 | FAIL (); |
90 | else if (f != 4.25 || memcmp (c, " x" , 2) != 0) |
91 | FAIL (); |
92 | if (xsscanf (str: " 5.25[0-9.] x" , fmt: "%la[0-9.]%2c" , &d, c) != 2) |
93 | FAIL (); |
94 | else if (d != 5.25 || memcmp (c, " x" , 2) != 0) |
95 | FAIL (); |
96 | |
97 | const char *tmpdir = getenv ("TMPDIR" ); |
98 | if (tmpdir == NULL || tmpdir[0] == '\0') |
99 | tmpdir = "/tmp" ; |
100 | |
101 | char fname[strlen (tmpdir) + sizeof "/tst-scanf17.XXXXXX" ]; |
102 | sprintf (fname, "%s/tst-scanf17.XXXXXX" , tmpdir); |
103 | |
104 | /* Create a temporary file. */ |
105 | int fd = mkstemp (template: fname); |
106 | if (fd == -1) |
107 | FAIL (); |
108 | |
109 | FILE *fp = fdopen (fd, "w+" ); |
110 | if (fp == NULL) |
111 | FAIL (); |
112 | else |
113 | { |
114 | if (fputs (" 1.25s x" , fp) == EOF) |
115 | FAIL (); |
116 | if (fseek (fp, 0, SEEK_SET) != 0) |
117 | FAIL (); |
118 | if (xfscanf (f: fp, fmt: "%as%2c" , &f, c) != 2) |
119 | FAIL (); |
120 | else if (f != 1.25 || memcmp (c, " x" , 2) != 0) |
121 | FAIL (); |
122 | |
123 | if (freopen (filename: fname, modes: "r" , stdin) == NULL) |
124 | FAIL (); |
125 | else |
126 | { |
127 | if (xscanf (fmt: "%as%2c" , &f, c) != 2) |
128 | FAIL (); |
129 | else if (f != 1.25 || memcmp (c, " x" , 2) != 0) |
130 | FAIL (); |
131 | } |
132 | |
133 | fclose (fp); |
134 | } |
135 | |
136 | remove (fname); |
137 | |
138 | return result; |
139 | } |
140 | |