about summary refs log tree commit diff
path: root/iconvdata/bug-iconv14.c
blob: 68f4b9c4c97d20469c46ae65e003c894c518b478 (plain) (blame)
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
/* Assertion in ISO-2022-JP-3 due to two-character sequence (bug 27256).
   Copyright (C) 2021-2022 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
   <https://www.gnu.org/licenses/>.  */

#include <iconv.h>
#include <string.h>
#include <errno.h>
#include <support/check.h>

/* Use an escape sequence to return to the initial state.  */
static void
with_escape_sequence (void)
{
  iconv_t c = iconv_open ("UTF-8", "ISO-2022-JP-3");
  TEST_VERIFY_EXIT (c != (iconv_t) -1);

  char in[] = "\e$(O+D\e(B";
  char *inbuf = in;
  size_t inleft = strlen (in);
  char out[3];                  /* Space for one output character.  */
  char *outbuf;
  size_t outleft;

  outbuf = out;
  outleft = sizeof (out);
  TEST_COMPARE (iconv (c, &inbuf, &inleft, &outbuf, &outleft), (size_t) -1);
  TEST_COMPARE (errno, E2BIG);
  TEST_COMPARE (inleft, 3);
  TEST_COMPARE (inbuf - in, strlen (in) - 3);
  TEST_COMPARE (outleft, sizeof (out) - 2);
  TEST_COMPARE (outbuf - out, 2);
  TEST_COMPARE (out[0] & 0xff, 0xc3);
  TEST_COMPARE (out[1] & 0xff, 0xa6);

  /* Return to the initial shift state, producing the pending
     character.  */
  outbuf = out;
  outleft = sizeof (out);
  TEST_COMPARE (iconv (c, &inbuf, &inleft, &outbuf, &outleft), 0);
  TEST_COMPARE (inleft, 0);
  TEST_COMPARE (inbuf - in, strlen (in));
  TEST_COMPARE (outleft, sizeof (out) - 2);
  TEST_COMPARE (outbuf - out, 2);
  TEST_COMPARE (out[0] & 0xff, 0xcc);
  TEST_COMPARE (out[1] & 0xff, 0x80);

  /* Nothing should be flushed the second time.  */
  outbuf = out;
  outleft = sizeof (out);
  TEST_COMPARE (iconv (c, NULL, 0, &outbuf, &outleft), 0);
  TEST_COMPARE (outleft, sizeof (out));
  TEST_COMPARE (outbuf - out, 0);
  TEST_COMPARE (out[0] & 0xff, 0xcc);
  TEST_COMPARE (out[1] & 0xff, 0x80);

  TEST_COMPARE (iconv_close (c), 0);
}

/* Use an explicit flush to return to the initial state.  */
static void
with_flush (void)
{
  iconv_t c = iconv_open ("UTF-8", "ISO-2022-JP-3");
  TEST_VERIFY_EXIT (c != (iconv_t) -1);

  char in[] = "\e$(O+D";
  char *inbuf = in;
  size_t inleft = strlen (in);
  char out[3];                  /* Space for one output character.  */
  char *outbuf;
  size_t outleft;

  outbuf = out;
  outleft = sizeof (out);
  TEST_COMPARE (iconv (c, &inbuf, &inleft, &outbuf, &outleft), (size_t) -1);
  TEST_COMPARE (errno, E2BIG);
  TEST_COMPARE (inleft, 0);
  TEST_COMPARE (inbuf - in, strlen (in));
  TEST_COMPARE (outleft, sizeof (out) - 2);
  TEST_COMPARE (outbuf - out, 2);
  TEST_COMPARE (out[0] & 0xff, 0xc3);
  TEST_COMPARE (out[1] & 0xff, 0xa6);

  /* Flush the pending character.  */
  outbuf = out;
  outleft = sizeof (out);
  TEST_COMPARE (iconv (c, NULL, 0, &outbuf, &outleft), 0);
  TEST_COMPARE (outleft, sizeof (out) - 2);
  TEST_COMPARE (outbuf - out, 2);
  TEST_COMPARE (out[0] & 0xff, 0xcc);
  TEST_COMPARE (out[1] & 0xff, 0x80);

  /* Nothing should be flushed the second time.  */
  outbuf = out;
  outleft = sizeof (out);
  TEST_COMPARE (iconv (c, NULL, 0, &outbuf, &outleft), 0);
  TEST_COMPARE (outleft, sizeof (out));
  TEST_COMPARE (outbuf - out, 0);
  TEST_COMPARE (out[0] & 0xff, 0xcc);
  TEST_COMPARE (out[1] & 0xff, 0x80);

  TEST_COMPARE (iconv_close (c), 0);
}

static int
do_test (void)
{
  with_escape_sequence ();
  with_flush ();
  return 0;
}

#include <support/test-driver.c>