1 /* Convert characters in input buffer using conversion descriptor to
3 Copyright (C) 1997 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 Library General Public License as
9 published by the Free Software Foundation; either version 2 of the
10 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 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public
18 License along with the GNU C Library; see the file COPYING.LIB. If not,
19 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
26 __gconv (gconv_t cd
, const char **inbuf
, size_t *inbytesleft
, char **outbuf
,
27 size_t *outbytesleft
, size_t *converted
)
29 size_t last_step
= cd
->nsteps
- 1;
30 size_t oldinbytes
= *inbytesleft
;
33 if (cd
== (gconv_t
) -1L)
34 return GCONV_ILLEGAL_DESCRIPTOR
;
36 cd
->data
[last_step
].outbuf
= *outbuf
;
37 cd
->data
[last_step
].outbufavail
= 0;
38 cd
->data
[last_step
].outbufsize
= *outbytesleft
;
40 if (converted
!= NULL
)
43 result
= (*cd
->steps
->fct
) (cd
->steps
, cd
->data
, *inbuf
, inbytesleft
,
44 converted
, inbuf
== NULL
|| *inbuf
== NULL
);
46 *inbuf
+= oldinbytes
- *inbytesleft
;
47 *outbuf
+= cd
->data
[last_step
].outbufavail
;
48 *outbytesleft
-= cd
->data
[last_step
].outbufavail
;