01859b1c24
2004-03-07 Simon Josefsson <jas@extundo.com> * Banner: New file. * Makefile: New file. * Version: New file. * configure: New file. * idn-stub.c: New file. * gunibreak.h: New file. Copied from Libidn. * gunicomp.h: New file. Copied from Libidn. * gunidecomp.h: New file. Copied from Libidn. * idna.h: New file. Copied from Libidn. * idna.c: New file. Copied from Libidn. * nfkc.c: New file. Copied from Libidn. * profiles.c: New file. Copied from Libidn. * punycode.c: New file. Copied from Libidn. * punycode.h: New file. Copied from Libidn. * rfc3454.c: New file. Copied from Libidn. * stringprep.c: New file. Copied from Libidn. * stringprep.h: New file. Copied from Libidn. * toutf8.c: New file. Copied from Libidn. Modified for use in glibc.
87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/* idn-stub.c --- Stub to dlopen libcidn.so and invoke idna_to_ascii_lz.
|
|
* Copyright (C) 2003, 2004 Simon Josefsson
|
|
*
|
|
* This file is part of GNU Libidn.
|
|
*
|
|
* GNU Libidn 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.
|
|
*
|
|
* GNU Libidn 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 GNU Libidn; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <dlfcn.h>
|
|
|
|
/* Get specification for idna_to_ascii_lz. */
|
|
#include "idna.h"
|
|
|
|
/* Handle of the libidn DSO. */
|
|
static void *h;
|
|
|
|
|
|
/* Stub to dlopen libcidn.so and invoke the real idna_to_ascii_lz, or
|
|
return IDNA_DLOPEN_ERROR on failure. */
|
|
int
|
|
__idna_to_ascii_lz (const char *input, char **output, int flags)
|
|
{
|
|
/* If the input string contains no non-ASCII character the output
|
|
string will be the same. No valid locale encoding does not have
|
|
this property. */
|
|
const char *cp = input;
|
|
while (*cp != '\0' && isascii (*cp))
|
|
++cp;
|
|
|
|
if (*cp == '\0')
|
|
{
|
|
*output = strdup (input);
|
|
return *output == NULL ? IDNA_MALLOC_ERROR : IDNA_SUCCESS;
|
|
}
|
|
|
|
static int (*to_ascii_lz) (const char *input, char **output, int flags);
|
|
|
|
if (h == NULL)
|
|
{
|
|
h = __libc_dlopen ("libcidn.so");
|
|
|
|
if (h == NULL)
|
|
h = (void *) 1l;
|
|
else
|
|
{
|
|
/* Get the function we are interested in. */
|
|
to_ascii_lz = __libc_dlsym (h, "idna_to_ascii_lz");
|
|
if (to_ascii_lz == NULL)
|
|
{
|
|
__libc_dlclose (h);
|
|
h = (void *) 1l;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (h == (void *) 1l)
|
|
return IDNA_DLOPEN_ERROR;
|
|
|
|
return to_ascii_lz (input, output, flags);
|
|
}
|
|
|
|
|
|
libc_freeres_fn (unload_libidn)
|
|
{
|
|
if (h != NULL && h != (void *) 1l)
|
|
{
|
|
__libc_dlclose (h);
|
|
h = (void *) 1l;
|
|
}
|
|
}
|