1 /* Assertion in ISO-2022-JP-3 due to two-character sequence (bug 27256).
2 Copyright (C) 2021-2023 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 <https://www.gnu.org/licenses/>. */
18
19 #include <iconv.h>
20 #include <string.h>
21 #include <errno.h>
22 #include <support/check.h>
23
24 /* Use an escape sequence to return to the initial state. */
25 static void
26 with_escape_sequence (void)
27 {
28 iconv_t c = iconv_open ("UTF-8", "ISO-2022-JP-3");
29 TEST_VERIFY_EXIT (c != (iconv_t) -1);
30
31 char in[] = "\e$(O+D\e(B";
32 char *inbuf = in;
33 size_t inleft = strlen (in);
34 char out[3]; /* Space for one output character. */
35 char *outbuf;
36 size_t outleft;
37
38 outbuf = out;
39 outleft = sizeof (out);
40 TEST_COMPARE (iconv (c, &inbuf, &inleft, &outbuf, &outleft), (size_t) -1);
41 TEST_COMPARE (errno, E2BIG);
42 TEST_COMPARE (inleft, 3);
43 TEST_COMPARE (inbuf - in, strlen (in) - 3);
44 TEST_COMPARE (outleft, sizeof (out) - 2);
45 TEST_COMPARE (outbuf - out, 2);
46 TEST_COMPARE (out[0] & 0xff, 0xc3);
47 TEST_COMPARE (out[1] & 0xff, 0xa6);
48
49 /* Return to the initial shift state, producing the pending
50 character. */
51 outbuf = out;
52 outleft = sizeof (out);
53 TEST_COMPARE (iconv (c, &inbuf, &inleft, &outbuf, &outleft), 0);
54 TEST_COMPARE (inleft, 0);
55 TEST_COMPARE (inbuf - in, strlen (in));
56 TEST_COMPARE (outleft, sizeof (out) - 2);
57 TEST_COMPARE (outbuf - out, 2);
58 TEST_COMPARE (out[0] & 0xff, 0xcc);
59 TEST_COMPARE (out[1] & 0xff, 0x80);
60
61 /* Nothing should be flushed the second time. */
62 outbuf = out;
63 outleft = sizeof (out);
64 TEST_COMPARE (iconv (c, NULL, 0, &outbuf, &outleft), 0);
65 TEST_COMPARE (outleft, sizeof (out));
66 TEST_COMPARE (outbuf - out, 0);
67 TEST_COMPARE (out[0] & 0xff, 0xcc);
68 TEST_COMPARE (out[1] & 0xff, 0x80);
69
70 TEST_COMPARE (iconv_close (c), 0);
71 }
72
73 /* Use an explicit flush to return to the initial state. */
74 static void
75 with_flush (void)
76 {
77 iconv_t c = iconv_open ("UTF-8", "ISO-2022-JP-3");
78 TEST_VERIFY_EXIT (c != (iconv_t) -1);
79
80 char in[] = "\e$(O+D";
81 char *inbuf = in;
82 size_t inleft = strlen (in);
83 char out[3]; /* Space for one output character. */
84 char *outbuf;
85 size_t outleft;
86
87 outbuf = out;
88 outleft = sizeof (out);
89 TEST_COMPARE (iconv (c, &inbuf, &inleft, &outbuf, &outleft), (size_t) -1);
90 TEST_COMPARE (errno, E2BIG);
91 TEST_COMPARE (inleft, 0);
92 TEST_COMPARE (inbuf - in, strlen (in));
93 TEST_COMPARE (outleft, sizeof (out) - 2);
94 TEST_COMPARE (outbuf - out, 2);
95 TEST_COMPARE (out[0] & 0xff, 0xc3);
96 TEST_COMPARE (out[1] & 0xff, 0xa6);
97
98 /* Flush the pending character. */
99 outbuf = out;
100 outleft = sizeof (out);
101 TEST_COMPARE (iconv (c, NULL, 0, &outbuf, &outleft), 0);
102 TEST_COMPARE (outleft, sizeof (out) - 2);
103 TEST_COMPARE (outbuf - out, 2);
104 TEST_COMPARE (out[0] & 0xff, 0xcc);
105 TEST_COMPARE (out[1] & 0xff, 0x80);
106
107 /* Nothing should be flushed the second time. */
108 outbuf = out;
109 outleft = sizeof (out);
110 TEST_COMPARE (iconv (c, NULL, 0, &outbuf, &outleft), 0);
111 TEST_COMPARE (outleft, sizeof (out));
112 TEST_COMPARE (outbuf - out, 0);
113 TEST_COMPARE (out[0] & 0xff, 0xcc);
114 TEST_COMPARE (out[1] & 0xff, 0x80);
115
116 TEST_COMPARE (iconv_close (c), 0);
117 }
118
119 static int
120 do_test (void)
121 {
122 with_escape_sequence ();
123 with_flush ();
124 return 0;
125 }
126
127 #include <support/test-driver.c>