]>
Commit | Line | Data |
---|---|---|
aea6989d | 1 | /* Test for a tricky E2BIG situation. |
568035b7 | 2 | Copyright (C) 2002-2013 Free Software Foundation, Inc. |
aea6989d RM |
3 | This file is part of the GNU C Library. |
4 | Contributed by Bruno Haible <bruno@clisp.org>, 2002. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
aea6989d RM |
19 | |
20 | #include <alloca.h> | |
21 | #include <errno.h> | |
22 | #include <iconv.h> | |
23 | #include <stdbool.h> | |
24 | #include <stdio.h> | |
25 | #include <stdlib.h> | |
26 | ||
27 | /* In EUC-JISX0213 and TSCII, a single input character can convert to | |
28 | a sequence of two or more Unicode characters. When the output buffer | |
29 | has room for less Unicode characters than would be produced with an | |
30 | unconstrained output buffer, the conversion must give errno = E2BIG. */ | |
31 | ||
32 | void | |
33 | test (const char *encoding, char *inbuf, size_t inbufsize, size_t outbufsize) | |
34 | { | |
35 | char *outbuf = alloca (outbufsize); | |
36 | iconv_t cd; | |
37 | char *inptr; | |
38 | size_t inlen; | |
39 | char *outptr; | |
40 | size_t outlen; | |
41 | int result; | |
42 | bool empty_input; | |
43 | bool empty_output; | |
44 | ||
45 | cd = iconv_open ("UTF-8", encoding); | |
46 | if (cd == (iconv_t) -1) | |
47 | { | |
48 | fprintf (stderr, "cannot convert from %s\n", encoding); | |
49 | exit (1); | |
50 | } | |
51 | ||
52 | inptr = inbuf; | |
53 | inlen = inbufsize; | |
54 | outptr = outbuf; | |
55 | outlen = outbufsize; | |
56 | ||
57 | result = iconv (cd, &inptr, &inlen, &outptr, &outlen); | |
58 | if (!(result == -1 && errno == E2BIG)) | |
59 | { | |
60 | fprintf (stderr, "%s: wrong iconv result: %d/%d (%m)\n", | |
61 | encoding, result, errno); | |
62 | exit (1); | |
63 | } | |
64 | empty_input = (inptr == inbuf && inlen == inbufsize); | |
65 | empty_output = (outptr == outbuf && outlen == outbufsize); | |
66 | ||
67 | if (!empty_input && empty_output) | |
68 | { | |
14bdd76d | 69 | fprintf (stderr, "%s: ate %td input bytes\n", encoding, inptr - inbuf); |
aea6989d RM |
70 | exit (1); |
71 | } | |
72 | if (empty_input && !empty_output) | |
73 | { | |
14bdd76d | 74 | fprintf (stderr, "%s: produced %td output bytes\n", |
aea6989d RM |
75 | encoding, outptr - outbuf); |
76 | exit (1); | |
77 | } | |
78 | ||
79 | iconv_close (cd); | |
80 | } | |
81 | ||
82 | void | |
83 | test_euc_jisx0213 (void) | |
84 | { | |
85 | char inbuf[2] = { 0xa4, 0xf7 }; | |
86 | test ("EUC-JISX0213", inbuf, sizeof (inbuf), 3); | |
87 | } | |
88 | ||
89 | void | |
90 | test_tscii (void) | |
91 | { | |
92 | char inbuf[1] = { 0x82 }; | |
93 | test ("TSCII", inbuf, sizeof (inbuf), 3); | |
94 | test ("TSCII", inbuf, sizeof (inbuf), 6); | |
95 | test ("TSCII", inbuf, sizeof (inbuf), 9); | |
96 | } | |
97 | ||
98 | int | |
99 | main (void) | |
100 | { | |
101 | test_euc_jisx0213 (); | |
102 | test_tscii (); | |
103 | return 0; | |
104 | } |