/* Convert characters in input buffer using conversion descriptor to output buffer. Copyright (C) 1997, 1998, 1999 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 <assert.h> #include <gconv.h> #include <sys/param.h> #include <dlfcn.h> #include <stddef.h> int internal_function __gconv (__gconv_t cd, const unsigned char **inbuf, const unsigned char *inbufend, unsigned char **outbuf, unsigned char *outbufend, size_t *converted) { size_t last_step = cd->__nsteps - 1; int result; if (cd == (__gconv_t) -1L) return __GCONV_ILLEGAL_DESCRIPTOR; assert (converted != NULL); *converted = 0; cd->__data[last_step].__outbuf = outbuf != NULL ? *outbuf : NULL; cd->__data[last_step].__outbufend = outbufend; if (inbuf == NULL || *inbuf == NULL) /* We just flush. */ result = DL_CALL_FCT (cd->__steps->__fct, (cd->__steps, cd->__data, NULL, NULL, converted, 1)); else { const unsigned char *last_start; assert (outbuf != NULL && *outbuf != NULL); do { last_start = *inbuf; result = DL_CALL_FCT (cd->__steps->__fct, (cd->__steps, cd->__data, inbuf, inbufend, converted, 0)); } while (result == __GCONV_EMPTY_INPUT && last_start != *inbuf && *inbuf + cd->__steps->__min_needed_from <= inbufend); } if (outbuf != NULL && *outbuf != NULL) *outbuf = cd->__data[last_step].__outbuf; return result; }