1 /* Copyright (C) 2007-2023 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 (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 (lsp, L"3.25") != 0 || memcmp (c, "S x", 3) != 0)
71 FAIL ();
72 memset (lsp, 'x', sizeof L"3.25");
73 free (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 (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 (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 (fp, "%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 (sp);
118 }
119
120 if (freopen (fname, "r", stdin) == NULL)
121 FAIL ();
122 else
123 {
124 if (scanf ("%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 (sp);
132 }
133 }
134
135 fclose (fp);
136 }
137
138 remove (fname);
139
140 return result;
141 }