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/*
This file is part of libextractor.
Copyright (C) 2002, 2003, 2004 Vidyut Samanta and Christian Grothoff
libextractor 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 2, or (at your
option) any later version.
libextractor 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 libextractor; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
/**
* @file main/iconv.c
* @brief convenience functions for character conversion
* @author Christian Grothoff
*/
/**
* Convert the given input using the given converter
* and return as a 0-terminated string.
*
* @param cd converter to use
* @param in input string
* @param inSize number of bytes in 'in'
* @return NULL on error, otherwise the converted string (to be free'd by caller)
*/
static char *
iconv_helper (iconv_t cd,
const char *in,
size_t inSize)
{
#if HAVE_ICONV
char *buf;
char *ibuf;
const char *i;
size_t outSize;
size_t outLeft;
if (inSize > 1024 * 1024)
return NULL; /* too big to be meta data */
i = in;
/* reset iconv */
iconv (cd, NULL, NULL, NULL, NULL);
outSize = 4 * inSize + 2;
outLeft = outSize - 2; /* make sure we have 2 0-terminations! */
if (NULL == (buf = malloc (outSize)))
return NULL;
ibuf = buf;
memset (buf, 0, outSize);
if (iconv (cd,
(char**) &in,
&inSize,
&ibuf,
&outLeft) == SIZE_MAX)
{
/* conversion failed */
free (buf);
return strdup (i);
}
return buf;
#else
/* good luck, just copying string... */
char *buf;
buf = malloc (inSize + 1);
memcpy (buf, in, inSize);
buf[inSize] = '\0';
#endif
}
/* end of iconv.c */
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