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/* Copyright (C) 2004-2023 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 <stdlib.h>
#include <stdio.h>
#include <errno.h>
#define SIZE 256 /* enough room for conversion */
#define SAMPLESTR "abc"
struct unalign
{
char str1[1];
char str2[SIZE];
};
struct convcode
{
const char *tocode;
const char *fromcode;
};
/* test builtin transformation */
static const struct convcode testcode[] = {
{"ASCII", "ASCII"},
{"UTF-8", "ASCII"},
{"UCS-2BE", "ASCII"},
{"UCS-2LE", "ASCII"},
{"UCS-4BE", "ASCII"},
{"UCS-4LE", "ASCII"},
};
static const int number = (int) sizeof (testcode) / sizeof (struct convcode);
static int
convert (const char *tocode, const char *fromcode, char *inbufp,
size_t inbytesleft, char *outbufp, size_t outbytesleft)
{
iconv_t *ic;
size_t outbytes = outbytesleft;
int ret;
ic = iconv_open (tocode, fromcode);
if (ic == (iconv_t *) - 1)
{
printf ("iconv_open failed: from: %s, to: %s: %s",
fromcode, tocode, strerror (errno));
return -1;
}
while (inbytesleft > 0)
{
ret = iconv (ic, &inbufp, &inbytesleft, &outbufp, &outbytes);
if (ret == -1)
{
printf ("iconv failed: from: %s, to: %s: %s",
fromcode, tocode, strerror (errno));
iconv_close (ic);
return -1;
}
}
ret = iconv_close (ic);
if (ret == -1)
{
printf ("iconv_close failed: from: %s, to: %s: %s",
fromcode, tocode, strerror (errno));
return -1;
}
return outbytesleft - outbytes;
}
static int
test_unalign (const struct convcode *codes, const char *str, int len)
{
struct unalign *inbufp, *outbufp;
char *inbuf, *outbuf;
size_t inbytesleft, outbytesleft;
int retlen;
/* allocating unaligned buffer for both inbuf and outbuf */
inbufp = (struct unalign *) malloc (sizeof (struct unalign));
if (!inbufp)
{
printf ("no memory available\n");
exit (1);
}
inbuf = inbufp->str2;
outbufp = (struct unalign *) malloc (sizeof (struct unalign));
if (!outbufp)
{
printf ("no memory available\n");
exit (1);
}
outbuf = outbufp->str2;
/* first iconv phase */
memcpy (inbuf, str, len);
inbytesleft = len;
outbytesleft = sizeof (struct unalign);
retlen = convert (codes->tocode, codes->fromcode, inbuf, inbytesleft,
outbuf, outbytesleft);
if (retlen == -1) /* failed */
return 1;
/* second round trip iconv phase */
memcpy (inbuf, outbuf, retlen);
inbytesleft = retlen;
outbytesleft = sizeof (struct unalign);
retlen = convert (codes->fromcode, codes->tocode, inbuf, inbytesleft,
outbuf, outbytesleft);
if (retlen == -1) /* failed */
return 1;
free (inbufp);
free (outbufp);
return 0;
}
static int
do_test (void)
{
int i;
int ret = 0;
for (i = 0; i < number; i++)
{
ret = test_unalign (&testcode[i], (char *) SAMPLESTR, sizeof (SAMPLESTR));
if (ret)
break;
printf ("iconv: %s <-> %s: ok\n",
testcode[i].fromcode, testcode[i].tocode);
}
if (ret == 0)
printf ("Succeeded.\n");
return ret;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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