]>
Commit | Line | Data |
---|---|---|
4802be92 | 1 | /* Test iconv buffer handling with the IGNORE error handler. |
dff8da6b | 2 | Copyright (C) 2019-2024 Free Software Foundation, Inc. |
4802be92 AS |
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 | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
4802be92 AS |
18 | |
19 | /* Derived from BZ #18830 */ | |
20 | #include <errno.h> | |
21 | #include <iconv.h> | |
22 | #include <stdio.h> | |
23 | #include <support/check.h> | |
24 | ||
25 | static int | |
26 | do_test (void) | |
27 | { | |
28 | /* This conversion needs two steps, from ASCII to INTERNAL to ASCII. */ | |
29 | iconv_t cd = iconv_open ("ASCII//IGNORE", "ASCII"); | |
30 | TEST_VERIFY_EXIT (cd != (iconv_t) -1); | |
31 | ||
32 | /* Convert some irreversible sequence, enough to trigger an overflow of | |
33 | the output buffer before the irreversible character in the second | |
34 | step, but after going past the irreversible character in the first | |
35 | step. */ | |
36 | char input[4 + 4] = { '0', '1', '2', '3', '4', '5', '\266', '7' }; | |
37 | char *inptr = input; | |
38 | size_t insize = sizeof (input); | |
39 | char output[4]; | |
40 | char *outptr = output; | |
41 | size_t outsize = sizeof (output); | |
42 | ||
43 | /* The conversion should fail. */ | |
44 | TEST_VERIFY (iconv (cd, &inptr, &insize, &outptr, &outsize) == (size_t) -1); | |
45 | TEST_VERIFY (errno == E2BIG); | |
46 | /* The conversion should not consume more than it was able to store in | |
47 | the output buffer. */ | |
48 | TEST_COMPARE (inptr - input, sizeof (output) - outsize); | |
49 | ||
50 | TEST_VERIFY_EXIT (iconv_close (cd) != -1); | |
51 | ||
52 | return 0; | |
53 | } | |
54 | ||
55 | #include <support/test-driver.c> |