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/* bug 19727: Testing UTF conversions with UTF16 surrogates as input.
Copyright (C) 2016-2025 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 <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <inttypes.h>
#include <iconv.h>
#include <byteswap.h>
static int
run_conversion (const char *from, const char *to, char *inbuf, size_t inbuflen,
int exp_errno, int line)
{
char outbuf[16];
iconv_t cd;
char *inptr;
size_t inlen;
char *outptr;
size_t outlen;
size_t n;
int e;
int fails = 0;
cd = iconv_open (to, from);
if (cd == (iconv_t) -1)
{
printf ("line %d: cannot convert from %s to %s: %m\n", line, from, to);
return 1;
}
inptr = (char *) inbuf;
inlen = inbuflen;
outptr = outbuf;
outlen = sizeof (outbuf);
errno = 0;
n = iconv (cd, &inptr, &inlen, &outptr, &outlen);
e = errno;
if (exp_errno == 0)
{
if (n == (size_t) -1)
{
puts ("n should be >= 0, but n == -1");
fails ++;
}
if (e != 0)
{
printf ("errno should be 0: 'Success', but errno == %d: '%s'\n"
, e, strerror(e));
fails ++;
}
}
else
{
if (n != (size_t) -1)
{
printf ("n should be -1, but n == %zd\n", n);
fails ++;
}
if (e != exp_errno)
{
printf ("errno should be %d: '%s', but errno == %d: '%s'\n"
, exp_errno, strerror (exp_errno), e, strerror (e));
fails ++;
}
}
iconv_close (cd);
if (fails > 0)
{
printf ("Errors in line %d while converting %s to %s.\n\n"
, line, from, to);
}
return fails;
}
static int
do_test (void)
{
int fails = 0;
char buf[4];
/* This test runs iconv() with UTF character in range of an UTF16 surrogate.
UTF-16 high surrogate is in range 0xD800..0xDBFF and
UTF-16 low surrogate is in range 0xDC00..0xDFFF.
Converting from or to UTF-xx has to report errors in those cases.
In UTF-16, surrogate pairs with a high surrogate in front of a low
surrogate is valid. */
/* Use RUN_UCS4_UTF32_INPUT to test conversion ...
... from INTERNAL to UTF-xx[LE|BE]:
Converting from UCS4 to UTF-xx[LE|BE] first converts UCS4 to INTERNAL
without checking for UTF-16 surrogate values
and then converts from INTERNAL to UTF-xx[LE|BE].
The latter conversion has to report an error in those cases.
... from UTF-32[LE|BE] to INTERNAL:
Converting directly from UTF-32LE to UTF-8|16 is needed,
because e.g. s390x has iconv-modules which converts directly. */
#define RUN_UCS4_UTF32_INPUT(b0, b1, b2, b3, err, line) \
buf[0] = b0; \
buf[1] = b1; \
buf[2] = b2; \
buf[3] = b3; \
fails += run_conversion ("UCS4", "UTF-8", buf, 4, err, line); \
fails += run_conversion ("UCS4", "UTF-16LE", buf, 4, err, line); \
fails += run_conversion ("UCS4", "UTF-16BE", buf, 4, err, line); \
fails += run_conversion ("UCS4", "UTF-32LE", buf, 4, err, line); \
fails += run_conversion ("UCS4", "UTF-32BE", buf, 4, err, line); \
fails += run_conversion ("UTF-32BE", "WCHAR_T", buf, 4, err, line); \
fails += run_conversion ("UTF-32BE", "UTF-8", buf, 4, err, line); \
fails += run_conversion ("UTF-32BE", "UTF-16LE", buf, 4, err, line); \
fails += run_conversion ("UTF-32BE", "UTF-16BE", buf, 4, err, line); \
buf[0] = b3; \
buf[1] = b2; \
buf[2] = b1; \
buf[3] = b0; \
fails += run_conversion ("UTF-32LE", "WCHAR_T", buf, 4, err, line); \
fails += run_conversion ("UTF-32LE", "UTF-8", buf, 4, err, line); \
fails += run_conversion ("UTF-32LE", "UTF-16LE", buf, 4, err, line); \
fails += run_conversion ("UTF-32LE", "UTF-16BE", buf, 4, err, line);
/* Use UCS4/UTF32 input of 0xD7FF. */
RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xD7, 0xFF, 0, __LINE__);
/* Use UCS4/UTF32 input of 0xD800. */
RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xD8, 0x00, EILSEQ, __LINE__);
/* Use UCS4/UTF32 input of 0xDBFF. */
RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xDB, 0xFF, EILSEQ, __LINE__);
/* Use UCS4/UTF32 input of 0xDC00. */
RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xDC, 0x00, EILSEQ, __LINE__);
/* Use UCS4/UTF32 input of 0xDFFF. */
RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xDF, 0xFF, EILSEQ, __LINE__);
/* Use UCS4/UTF32 input of 0xE000. */
RUN_UCS4_UTF32_INPUT (0x0, 0x0, 0xE0, 0x00, 0, __LINE__);
/* Use RUN_UTF16_INPUT to test conversion from UTF16[LE|BE] to INTERNAL.
Converting directly from UTF-16 to UTF-8|32 is needed,
because e.g. s390x has iconv-modules which converts directly.
Use len == 2 or 4 to specify one or two UTF-16 characters. */
#define RUN_UTF16_INPUT(b0, b1, b2, b3, len, err, line) \
buf[0] = b0; \
buf[1] = b1; \
buf[2] = b2; \
buf[3] = b3; \
fails += run_conversion ("UTF-16BE", "WCHAR_T", buf, len, err, line); \
fails += run_conversion ("UTF-16BE", "UTF-8", buf, len, err, line); \
fails += run_conversion ("UTF-16BE", "UTF-32LE", buf, len, err, line); \
fails += run_conversion ("UTF-16BE", "UTF-32BE", buf, len, err, line); \
buf[0] = b1; \
buf[1] = b0; \
buf[2] = b3; \
buf[3] = b2; \
fails += run_conversion ("UTF-16LE", "WCHAR_T", buf, len, err, line); \
fails += run_conversion ("UTF-16LE", "UTF-8", buf, len, err, line); \
fails += run_conversion ("UTF-16LE", "UTF-32LE", buf, len, err, line); \
fails += run_conversion ("UTF-16LE", "UTF-32BE", buf, len, err, line);
/* Use UTF16 input of 0xD7FF. */
RUN_UTF16_INPUT (0xD7, 0xFF, 0xD7, 0xFF, 4, 0, __LINE__);
/* Use [single] UTF16 high surrogate 0xD800 [with a valid character behind].
And check an UTF16 surrogate pair [without valid low surrogate]. */
RUN_UTF16_INPUT (0xD8, 0x0, 0x0, 0x0, 2, EINVAL, __LINE__);
RUN_UTF16_INPUT (0xD8, 0x0, 0xD7, 0xFF, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xD8, 0x0, 0xD8, 0x0, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xD8, 0x0, 0xE0, 0x0, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xD8, 0x0, 0xDC, 0x0, 4, 0, __LINE__);
/* Use [single] UTF16 high surrogate 0xDBFF [with a valid character behind].
And check an UTF16 surrogate pair [without valid low surrogate]. */
RUN_UTF16_INPUT (0xDB, 0xFF, 0x0, 0x0, 2, EINVAL, __LINE__);
RUN_UTF16_INPUT (0xDB, 0xFF, 0xD7, 0xFF, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xDB, 0xFF, 0xDB, 0xFF, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xDB, 0xFF, 0xE0, 0x0, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xDB, 0xFF, 0xDF, 0xFF, 4, 0, __LINE__);
/* Use single UTF16 low surrogate 0xDC00 [with a valid character behind].
And check an UTF16 surrogate pair [without valid high surrogate]. */
RUN_UTF16_INPUT (0xDC, 0x0, 0x0, 0x0, 2, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xDC, 0x0, 0xD7, 0xFF, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xD8, 0x0, 0xDC, 0x0, 4, 0, __LINE__);
RUN_UTF16_INPUT (0xD7, 0xFF, 0xDC, 0x0, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xDC, 0x0, 0xDC, 0x0, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xE0, 0x0, 0xDC, 0x0, 4, EILSEQ, __LINE__);
/* Use single UTF16 low surrogate 0xDFFF [with a valid character behind].
And check an UTF16 surrogate pair [without valid high surrogate]. */
RUN_UTF16_INPUT (0xDF, 0xFF, 0x0, 0x0, 2, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xDF, 0xFF, 0xD7, 0xFF, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xDB, 0xFF, 0xDF, 0xFF, 4, 0, __LINE__);
RUN_UTF16_INPUT (0xD7, 0xFF, 0xDF, 0xFF, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xDF, 0xFF, 0xDF, 0xFF, 4, EILSEQ, __LINE__);
RUN_UTF16_INPUT (0xE0, 0x0, 0xDF, 0xFF, 4, EILSEQ, __LINE__);
/* Use UCS4/UTF32 input of 0xE000. */
RUN_UTF16_INPUT (0xE0, 0x0, 0xE0, 0x0, 4, 0, __LINE__);
/* Use RUN_UTF8_3BYTE_INPUT to test conversion from UTF-8 to INTERNAL.
Converting directly from UTF-8 to UTF-16|32 is needed,
because e.g. s390x has iconv-modules which converts directly. */
#define RUN_UTF8_3BYTE_INPUT(b0, b1, b2, err, line) \
buf[0] = b0; \
buf[1] = b1; \
buf[2] = b2; \
fails += run_conversion ("UTF-8", "WCHAR_T", buf, 3, err, line); \
fails += run_conversion ("UTF-8", "UTF-16LE", buf, 3, err, line); \
fails += run_conversion ("UTF-8", "UTF-16BE", buf, 3, err, line); \
fails += run_conversion ("UTF-8", "UTF-32LE", buf, 3, err, line); \
fails += run_conversion ("UTF-8", "UTF-32BE", buf, 3, err, line);
/* Use UTF-8 input of 0xD7FF. */
RUN_UTF8_3BYTE_INPUT (0xED, 0x9F, 0xBF, 0, __LINE__);
/* Use UTF-8 input of 0xD800. */
RUN_UTF8_3BYTE_INPUT (0xED, 0xA0, 0x80, EILSEQ, __LINE__);
/* Use UTF-8 input of 0xDBFF. */
RUN_UTF8_3BYTE_INPUT (0xED, 0xAF, 0xBF, EILSEQ, __LINE__);
/* Use UTF-8 input of 0xDC00. */
RUN_UTF8_3BYTE_INPUT (0xED, 0xB0, 0x80, EILSEQ, __LINE__);
/* Use UTF-8 input of 0xDFFF. */
RUN_UTF8_3BYTE_INPUT (0xED, 0xBF, 0xBF, EILSEQ, __LINE__);
/* Use UTF-8 input of 0xF000. */
RUN_UTF8_3BYTE_INPUT (0xEF, 0x80, 0x80, 0, __LINE__);
return fails > 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
|
