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1/* Test for open_memstream implementation.
2 Copyright (C) 2016-2019 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 <http://www.gnu.org/licenses/>. */
18
19#include <mcheck.h>
20#include <stdio.h>
21#include <stdlib.h>
22#include <string.h>
23#include <stdarg.h>
24#include <errno.h>
25
26
27#ifndef CHAR_T
28# define CHAR_T char
29# define W(o) o
30# define OPEN_MEMSTREAM open_memstream
31# define PRINTF printf
32# define FWRITE_FUNC fwrite
33# define FPUTC fputc
34# define STRCMP strcmp
35#endif
36
37#define S(s) S1 (s)
38#define S1(s) #s
39
40static void
41mcheck_abort (enum mcheck_status ev)
42{
43 printf ("mecheck failed with status %d\n", (int) ev);
44 exit (1);
45}
46
47static void
48error_printf (int line, const char *fmt, ...)
49{
50 va_list ap;
51
52 printf ("error: %s:%i: ", __FILE__, line);
53 va_start (ap, fmt);
54 vprintf (fmt, ap);
55 va_end (ap);
56}
57
58#define ERROR_RET1(...) \
59 { error_printf(__LINE__, __VA_ARGS__); return 1; }
60
61static int
62do_test_bz18241 (void)
63{
64 CHAR_T *buf;
65 size_t size;
66
67 FILE *fp = OPEN_MEMSTREAM (&buf, &size);
68 if (fp == NULL)
69 ERROR_RET1 ("%s failed\n", S(OPEN_MEMSTREAM));
70
71 if (FPUTC (W('a'), fp) != W('a'))
72 ERROR_RET1 ("%s failed (errno = %d)\n", S(FPUTC), errno);
73 if (fflush (fp) != 0)
74 ERROR_RET1 ("fflush failed (errno = %d)\n", errno);
75 if (fseek (fp, -2, SEEK_SET) != -1)
76 ERROR_RET1 ("fseek failed (errno = %d)\n", errno);
77 if (errno != EINVAL)
78 ERROR_RET1 ("errno != EINVAL\n");
79 if (ftell (fp) != 1)
80 ERROR_RET1 ("ftell failed (errno = %d)\n", errno);
81 if (ferror (fp) != 0)
82 ERROR_RET1 ("ferror != 0\n");
83
84 if (fseek (fp, -1, SEEK_CUR) == -1)
85 ERROR_RET1 ("fseek failed (errno = %d)\n", errno);
86 if (ftell (fp) != 0)
87 ERROR_RET1 ("ftell failed (errno = %d)\n", errno);
88 if (ferror (fp) != 0)
89 ERROR_RET1 ("ferror != 0\n");
90 if (FPUTC (W('b'), fp) != W('b'))
91 ERROR_RET1 ("%s failed (errno = %d)\n", S(FPUTC), errno);
92 if (fflush (fp) != 0)
93 ERROR_RET1 ("fflush failed (errno = %d)\n", errno);
94
95 if (fclose (fp) != 0)
96 ERROR_RET1 ("fclose failed (errno = %d\n", errno);
97
98 if (STRCMP (buf, W("b")) != 0)
99 ERROR_RET1 ("%s failed\n", S(STRCMP));
100
101 free (buf);
102
103 return 0;
104}
105
106static int
107do_test_bz20181 (void)
108{
109 CHAR_T *buf;
110 size_t size;
111 size_t ret;
112
113 FILE *fp = OPEN_MEMSTREAM (&buf, &size);
114 if (fp == NULL)
115 ERROR_RET1 ("%s failed\n", S(OPEN_MEMSTREAM));
116
117 if ((ret = FWRITE_FUNC (W("abc"), 1, 3, fp)) != 3)
118 ERROR_RET1 ("%s failed (errno = %d)\n", S(FWRITE_FUNC), errno);
119
120 if (fseek (fp, 0, SEEK_SET) != 0)
121 ERROR_RET1 ("fseek failed (errno = %d)\n", errno);
122
123 if (FWRITE_FUNC (W("z"), 1, 1, fp) != 1)
124 ERROR_RET1 ("%s failed (errno = %d)\n", S(FWRITE_FUNC), errno);
125
126 if (fflush (fp) != 0)
127 ERROR_RET1 ("fflush failed (errno = %d)\n", errno);
128
129 /* Avoid truncating the buffer on close. */
130 if (fseek (fp, 3, SEEK_SET) != 0)
131 ERROR_RET1 ("fseek failed (errno = %d)\n", errno);
132
133 if (fclose (fp) != 0)
134 ERROR_RET1 ("fclose failed (errno = %d\n", errno);
135
136 if (size != 3)
137 ERROR_RET1 ("size != 3\n");
138
139 if (buf[0] != W('z')
140 || buf[1] != W('b')
141 || buf[2] != W('c'))
142 {
143 PRINTF (W("error: buf {%c,%c,%c} != {z,b,c}\n"),
144 buf[0], buf[1], buf[2]);
145 return 1;
146 }
147
148 free (buf);
149
150 return 0;
151}
152
153static int
154do_test (void)
155{
156 int ret = 0;
157
158 mcheck_pedantic (mcheck_abort);
159
160 ret += do_test_bz18241 ();
161 ret += do_test_bz20181 ();
162
163 return ret;
164}
165
166#define TEST_FUNCTION do_test ()
167#include "../test-skeleton.c"
168

Warning: That file was not part of the compilation database. It may have many parsing errors.