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
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
/* Test of buffer that accumulates a string by piecewise concatenation.
Copyright (C) 2021-2025 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2021. */
#include <config.h>
#include "string-buffer.h"
#include <errno.h>
#include <string.h>
#include <wchar.h>
#include "macros.h"
static int
my_appendf (struct string_buffer *buffer, const char *formatstring, ...)
{
va_list args;
va_start (args, formatstring);
int ret = sb_appendvf (buffer, formatstring, args);
va_end (args);
return ret;
}
char invalid_format_string_1[] = "%&";
char invalid_format_string_2[] = "%^";
int
main ()
{
/* Test accumulation. */
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append1 (&buffer, 'x');
sb_append1 (&buffer, '\377');
char *s = sb_dupfree_c (&buffer);
ASSERT (s != NULL && strcmp (s, "x\377") == 0);
free (s);
}
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append1 (&buffer, 'x');
sb_append1 (&buffer, '\377');
{
string_desc_t sd = sb_contents (&buffer);
ASSERT (string_desc_length (sd) == 2);
ASSERT (string_desc_char_at (sd, 0) == 'x');
ASSERT (string_desc_char_at (sd, 1) == '\377');
}
sb_append1 (&buffer, '\0');
sb_append1 (&buffer, 'z');
{
string_desc_t sd = sb_contents (&buffer);
ASSERT (string_desc_length (sd) == 4);
ASSERT (string_desc_char_at (sd, 0) == 'x');
ASSERT (string_desc_char_at (sd, 1) == '\377');
ASSERT (string_desc_char_at (sd, 2) == '\0');
ASSERT (string_desc_char_at (sd, 3) == 'z');
}
char *s = sb_dupfree_c (&buffer);
ASSERT (s != NULL && memcmp (s, "x\377\0z\0", 5) == 0);
free (s);
}
/* Test simple string concatenation. */
{
struct string_buffer buffer;
sb_init (&buffer);
char *s = sb_dupfree_c (&buffer);
ASSERT (s != NULL && strcmp (s, "") == 0);
free (s);
}
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append_c (&buffer, "abc");
sb_append_c (&buffer, "");
sb_append_c (&buffer, "defg");
char *s = sb_dupfree_c (&buffer);
ASSERT (s != NULL && strcmp (s, "abcdefg") == 0);
free (s);
}
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append_c (&buffer, "abc");
sb_append_desc (&buffer, string_desc_new_addr (5, "de\0fg"));
sb_append_c (&buffer, "hij");
char *s = sb_dupfree_c (&buffer);
ASSERT (s != NULL && memcmp (s, "abcde\0fghij", 12) == 0);
free (s);
}
/* Test printf-like formatting. */
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append_c (&buffer, "<");
sb_appendf (&buffer, "%x", 3735928559U);
sb_append_c (&buffer, ">");
char *s = sb_dupfree_c (&buffer);
ASSERT (s != NULL && strcmp (s, "<deadbeef>") == 0);
free (s);
}
/* Test vprintf-like formatting. */
{
struct string_buffer buffer;
sb_init (&buffer);
sb_append_c (&buffer, "<");
my_appendf (&buffer, "%x", 3735928559U);
sb_append_c (&buffer, ">");
char *s = sb_dupfree_c (&buffer);
ASSERT (s != NULL && strcmp (s, "<deadbeef>") == 0);
free (s);
}
/* Test printf-like formatting failure.
On all systems except AIX, trying to convert the wide-character 0x76543210
to a multibyte string (in the "C" locale) fails.
On all systems, invalid format directives make the vsnzprintf() call
fail. */
{
struct string_buffer buffer;
int ret;
sb_init (&buffer);
sb_append_c (&buffer, "<");
ret = sb_appendf (&buffer, "%lc", (wint_t) 0x76543210);
#if !(defined _AIX || (defined _WIN32 && !defined __CYGWIN__))
ASSERT (ret < 0);
ASSERT (errno == EILSEQ);
#endif
sb_append_c (&buffer, "|");
ret = sb_appendf (&buffer, invalid_format_string_1, 1);
ASSERT (ret < 0);
ASSERT (errno == EINVAL);
sb_append_c (&buffer, "|");
ret = sb_appendf (&buffer, invalid_format_string_2, 2);
ASSERT (ret < 0);
ASSERT (errno == EINVAL);
sb_append_c (&buffer, ">");
char *s = sb_dupfree_c (&buffer);
ASSERT (s == NULL);
}
return test_exit_status;
}
|
