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/* Test of conversion from UTF-16 to legacy encodings.
Copyright (C) 2007-2024 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
#include <config.h>
#include "uniconv.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "macros.h"
/* Magic number for detecting bounds violations. */
#define MAGIC 0x1983EFF1
static size_t *
new_offsets (size_t n)
{
size_t *offsets = (size_t *) malloc ((n + 1) * sizeof (size_t));
offsets[n] = MAGIC;
return offsets;
}
int
main ()
{
#if HAVE_ICONV
static enum iconv_ilseq_handler handlers[] =
{ iconveh_error, iconveh_question_mark, iconveh_escape_sequence };
size_t h;
size_t o;
size_t i;
/* Assume that iconv() supports at least the encodings ASCII, ISO-8859-1,
ISO-8859-2, and UTF-8. */
/* Test conversion from UTF-16 to ISO-8859-1 with no errors. */
for (h = 0; h < SIZEOF (handlers); h++)
{
enum iconv_ilseq_handler handler = handlers[h];
static const uint16_t input[] = /* Ärger mit bösen Bübchen ohne Augenmaß */
{
0xC4, 'r', 'g', 'e', 'r', ' ', 'm', 'i', 't', ' ', 'b', 0xF6, 's',
'e', 'n', ' ', 'B', 0xFC, 'b', 'c', 'h', 'e', 'n', ' ', 'o', 'h',
'n', 'e', ' ', 'A', 'u', 'g', 'e', 'n', 'm', 'a', 0xDF
};
static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
for (o = 0; o < 2; o++)
{
size_t *offsets = (o ? new_offsets (SIZEOF (input)) : NULL);
size_t length;
char *result = u16_conv_to_encoding ("ISO-8859-1", handler,
input, SIZEOF (input),
offsets,
NULL, &length);
ASSERT (result != NULL);
ASSERT (length == strlen (expected));
ASSERT (memcmp (result, expected, length) == 0);
if (o)
{
for (i = 0; i < 37; i++)
ASSERT (offsets[i] == i);
ASSERT (offsets[37] == MAGIC);
free (offsets);
}
free (result);
}
}
/* Test conversion from UTF-16 to ISO-8859-1 with EILSEQ. */
for (h = 0; h < SIZEOF (handlers); h++)
{
enum iconv_ilseq_handler handler = handlers[h];
static const uint16_t input[] = /* Rafał Maszkowski */
{
'R', 'a', 'f', 'a', 0x0142, ' ', 'M', 'a', 's', 'z', 'k', 'o', 'w',
's', 'k', 'i'
};
for (o = 0; o < 2; o++)
{
size_t *offsets = (o ? new_offsets (SIZEOF (input)) : NULL);
size_t length = 0xdead;
char *result = u16_conv_to_encoding ("ISO-8859-1", handler,
input, SIZEOF (input),
offsets,
NULL, &length);
switch (handler)
{
case iconveh_error:
ASSERT (result == NULL);
ASSERT (errno == EILSEQ);
ASSERT (length == 0xdead);
if (o)
free (offsets);
break;
case iconveh_question_mark:
{
static const char expected[] = "Rafa? Maszkowski";
static const char expected_translit[] = "Rafal Maszkowski";
ASSERT (result != NULL);
ASSERT (length == strlen (expected));
ASSERT (memcmp (result, expected, length) == 0
|| memcmp (result, expected_translit, length) == 0);
if (o)
{
for (i = 0; i < 16; i++)
ASSERT (offsets[i] == i);
ASSERT (offsets[16] == MAGIC);
free (offsets);
}
free (result);
}
break;
case iconveh_escape_sequence:
{
static const char expected[] = "Rafa\\u0142 Maszkowski";
ASSERT (result != NULL);
ASSERT (length == strlen (expected));
ASSERT (memcmp (result, expected, length) == 0);
if (o)
{
for (i = 0; i < 16; i++)
ASSERT (offsets[i] == (i < 5 ? i : i + 5));
ASSERT (offsets[16] == MAGIC);
free (offsets);
}
free (result);
}
break;
}
}
}
/* Test conversion from UTF-16 to ISO-8859-1 with EINVAL. */
for (h = 0; h < SIZEOF (handlers); h++)
{
enum iconv_ilseq_handler handler = handlers[h];
static const uint16_t input[] = { 0xD845 };
for (o = 0; o < 2; o++)
{
size_t *offsets = (o ? new_offsets (SIZEOF (input)) : NULL);
size_t length;
char *result = u16_conv_to_encoding ("ISO-8859-1", handler,
input, SIZEOF (input),
offsets,
NULL, &length);
ASSERT (result != NULL);
ASSERT (length == strlen (""));
if (o)
{
ASSERT (offsets[0] == 0);
ASSERT (offsets[1] == MAGIC);
free (offsets);
}
free (result);
}
}
#endif
return 0;
}
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