1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
|
/* basic fmemopen interface testing.
Copyright (C) 2014-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/types.h>
static char *test_file;
static void
do_prepare (int argc, char *argv[])
{
/* Construct the test file name based on ARGV[0], which will be
an absolute file name in the build directory. Don't touch the
source directory, which might be read-only. */
if (asprintf (&test_file, "%s.test", argv[0]) < 0)
{
puts ("asprintf failed\n");
exit (EXIT_FAILURE);
}
}
static int
do_test (void)
{
const char blah[] = "BLAH";
FILE *fp;
char *mmap_data;
int ch, fd;
struct stat fs;
const char *cp;
/* setup the physical file, and use it */
if ((fp = fopen (test_file, "w+")) == NULL)
return 1;
if (fwrite (blah, 1, strlen (blah), fp) != strlen (blah))
{
fclose (fp);
return 2;
}
rewind (fp);
printf ("file: ");
cp = blah;
while ((ch = getc (fp)) != EOF)
{
fputc (ch, stdout);
if (ch != *cp)
{
printf ("\ncharacter %td: '%c' instead of '%c'\n",
cp - blah, ch, *cp);
fclose (fp);
return 1;
}
++cp;
}
fputc ('\n', stdout);
if (ferror (fp))
{
puts ("fp: error");
fclose (fp);
return 1;
}
if (feof (fp))
printf ("fp: EOF\n");
else
{
puts ("not EOF");
fclose (fp);
return 1;
}
fclose (fp);
/* Now, mmap the file into a buffer, and do that too */
if ((fd = open (test_file, O_RDONLY)) == -1)
{
printf ("open (%s, O_RDONLY) failed\n", test_file);
return 3;
}
if (fstat (fd, &fs) == -1)
{
printf ("stat (%i)\n", fd);
return 4;
}
if ((mmap_data = (char *) mmap (NULL, fs.st_size, PROT_READ,
MAP_SHARED, fd, 0)) == MAP_FAILED)
{
printf ("mmap (NULL, %zu, PROT_READ, MAP_SHARED, %i, 0) failed\n",
(size_t) fs.st_size, fd);
return 5;
}
if ((fp = fmemopen (mmap_data, fs.st_size, "r")) == NULL)
{
printf ("fmemopen (%p, %zu) failed\n", mmap_data, (size_t) fs.st_size);
return 1;
}
printf ("mem: ");
cp = blah;
while ((ch = getc (fp)) != EOF)
{
fputc (ch, stdout);
if (ch != *cp)
{
printf ("%td character: '%c' instead of '%c'\n",
cp - blah, ch, *cp);
fclose (fp);
return 1;
}
++cp;
}
fputc ('\n', stdout);
if (ferror (fp))
{
puts ("fp: error");
fclose (fp);
return 1;
}
if (feof (fp))
printf ("fp: EOF\n");
else
{
puts ("not EOF");
fclose (fp);
return 1;
}
fclose (fp);
munmap (mmap_data, fs.st_size);
unlink (test_file);
free (test_file);
return 0;
}
#define PREPARE(argc, argv) do_prepare (argc, argv)
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
GitWeb