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/* Assertion in ISO-2022-JP-3 due to two-character sequence (bug 27256).
Copyright (C) 2021-2023 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>
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