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/* Convert characters in input buffer using conversion descriptor to
output buffer.
Copyright (C) 1997, 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <gconv.h>
int
internal_function
__gconv (gconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf,
size_t *outbytesleft, size_t *converted)
{
size_t last_step = cd->nsteps - 1;
size_t oldinbytes = *inbytesleft;
int result;
if (cd == (gconv_t) -1L)
return GCONV_ILLEGAL_DESCRIPTOR;
cd->data[last_step].outbuf = outbuf ? *outbuf : NULL;
cd->data[last_step].outbufavail = 0;
cd->data[last_step].outbufsize = *outbytesleft;
if (converted != NULL)
*converted = 0;
result = (*cd->steps->fct) (cd->steps, cd->data,
inbuf ? *inbuf : NULL, inbytesleft,
converted, inbuf == NULL || *inbuf == NULL);
if (inbuf != NULL && *inbuf != NULL)
*inbuf += oldinbytes - *inbytesleft;
if (outbuf != NULL && *outbuf != NULL)
{
*outbuf += cd->data[last_step].outbufavail;
*outbytesleft -= cd->data[last_step].outbufavail;
}
return result;
}
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