1 /* Convert characters in input buffer using conversion descriptor to
3 Copyright (C) 1997-2001, 2005, 2007 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
12 The GNU C Library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public
18 License along with the GNU C Library; if not, write to the Free
19 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
25 #include <sys/param.h>
27 #include <gconv_int.h>
33 __gconv (__gconv_t cd, const unsigned char **inbuf,
34 const unsigned char *inbufend, unsigned char **outbuf,
35 unsigned char *outbufend, size_t *irreversible)
40 if (cd == (__gconv_t) -1L)
41 return __GCONV_ILLEGAL_DESCRIPTOR;
43 last_step = cd->__nsteps - 1;
45 assert (irreversible != NULL);
48 cd->__data[last_step].__outbuf = outbuf != NULL ? *outbuf : NULL;
49 cd->__data[last_step].__outbufend = outbufend;
51 __gconv_fct fct = cd->__steps->__fct;
53 if (cd->__steps->__shlib_handle != NULL)
57 if (inbuf == NULL || *inbuf == NULL)
60 result = DL_CALL_FCT (fct,
61 (cd->__steps, cd->__data, NULL, NULL, NULL,
63 cd->__data[last_step].__outbuf == NULL ? 2 : 1,
66 /* If the flush was successful clear the rest of the state. */
67 if (result == __GCONV_OK)
68 for (size_t cnt = 0; cnt <= last_step; ++cnt)
69 cd->__data[cnt].__invocation_counter = 0;
73 const unsigned char *last_start;
75 assert (outbuf != NULL && *outbuf != NULL);
80 result = DL_CALL_FCT (fct,
81 (cd->__steps, cd->__data, inbuf, inbufend,
82 NULL, irreversible, 0, 0));
84 while (result == __GCONV_EMPTY_INPUT && last_start != *inbuf
85 && *inbuf + cd->__steps->__min_needed_from <= inbufend);
88 if (outbuf != NULL && *outbuf != NULL)
89 *outbuf = cd->__data[last_step].__outbuf;