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/* test-compat-punycode.c --- Self test Libidn2 punycode internal symbols.
Copyright (C) 2002-2025 Simon Josefsson
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 <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <idn2.h>
extern int _IDN2_API _idn2_punycode_decode (size_t input_length,
const char input[],
size_t *output_length,
uint32_t output[]);
extern int _IDN2_API _idn2_punycode_encode (size_t input_length,
const uint32_t input[],
size_t *output_length,
char output[]);
int
main (void)
{
int rc;
const uint32_t ucs4_input[] = { 0x00DF, 0x00E5 }; /* ßå */
size_t output_length = 2;
uint32_t ucs4_output[2];
char ascii[4];
output_length = 4;
rc = _idn2_punycode_encode (2, ucs4_input, &output_length, ascii);
if (rc != IDN2_OK)
{
printf ("FAIL: encode: %d: %s: %s\n",
rc, idn2_strerror_name (rc), idn2_strerror (rc));
return EXIT_FAILURE;
}
if (output_length != 4)
{
printf ("FAIL: encode 4 != %lu\n", (unsigned long) output_length);
return EXIT_FAILURE;
}
if (memcmp (ascii, "zcam", 4) != 0)
{
printf ("FAIL: encode: memcmp: %s\n", ascii);
return EXIT_FAILURE;
}
printf ("PASS: ßå => zcam\n");
rc = _idn2_punycode_decode (4, ascii, &output_length, ucs4_output);
if (rc != IDN2_OK)
{
printf ("FAIL: decode: %d: %s: %s\n",
rc, idn2_strerror_name (rc), idn2_strerror (rc));
return EXIT_FAILURE;
}
if (output_length != 2)
{
printf ("FAIL: decode 2 != %lu\n", (unsigned long) output_length);
return EXIT_FAILURE;
}
if (memcmp (ucs4_output, ucs4_input, 2 * sizeof (uint32_t)) != 0)
{
printf ("FAIL: decode: memcmp: %s\n", ascii);
printf ("ucs4_output[0] = %lX\n", (unsigned long) ucs4_output[0]);
printf ("ucs4_output[1] = %lX\n", (unsigned long) ucs4_output[1]);
return EXIT_FAILURE;
}
printf ("PASS: zcam => ßå\n");
return EXIT_SUCCESS;
}
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