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Commit | Line | Data |
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6973fc01 UD |
1 | /* Convert characters in input buffer using conversion descriptor to |
2 | output buffer. | |
eacde9d0 | 3 | Copyright (C) 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
6973fc01 UD |
4 | This file is part of the GNU C Library. |
5 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. | |
6 | ||
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. | |
11 | ||
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. | |
16 | ||
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. */ | |
21 | ||
8619129f | 22 | #include <assert.h> |
17427edd | 23 | #include <gconv_int.h> |
8619129f | 24 | #include <sys/param.h> |
b3fc5f84 | 25 | #include <dlfcn.h> |
b2b28911 | 26 | #include <stddef.h> |
6973fc01 UD |
27 | |
28 | int | |
0d9f6793 | 29 | internal_function |
d64b6ad0 UD |
30 | __gconv (__gconv_t cd, const unsigned char **inbuf, |
31 | const unsigned char *inbufend, unsigned char **outbuf, | |
38677ace | 32 | unsigned char *outbufend, size_t *irreversible) |
6973fc01 | 33 | { |
eacde9d0 | 34 | size_t last_step; |
6973fc01 UD |
35 | int result; |
36 | ||
d64b6ad0 UD |
37 | if (cd == (__gconv_t) -1L) |
38 | return __GCONV_ILLEGAL_DESCRIPTOR; | |
e34b0f29 | 39 | |
eacde9d0 UD |
40 | last_step = cd->__nsteps - 1; |
41 | ||
38677ace UD |
42 | assert (irreversible != NULL); |
43 | *irreversible = 0; | |
6973fc01 | 44 | |
c63598bf | 45 | cd->__data[last_step].__outbuf = outbuf != NULL ? *outbuf : NULL; |
4a422921 UD |
46 | cd->__data[last_step].__outbufend = outbufend; |
47 | ||
8619129f UD |
48 | if (inbuf == NULL || *inbuf == NULL) |
49 | /* We just flush. */ | |
94e365c6 | 50 | result = DL_CALL_FCT (cd->__steps->__fct, |
f1d5c60d UD |
51 | (cd->__steps, cd->__data, NULL, NULL, NULL, |
52 | irreversible, 1, 0)); | |
8619129f UD |
53 | else |
54 | { | |
e573146a | 55 | const unsigned char *last_start; |
6973fc01 | 56 | |
8619129f | 57 | assert (outbuf != NULL && *outbuf != NULL); |
6973fc01 | 58 | |
8619129f UD |
59 | do |
60 | { | |
8619129f | 61 | last_start = *inbuf; |
94e365c6 | 62 | result = DL_CALL_FCT (cd->__steps->__fct, |
55985355 | 63 | (cd->__steps, cd->__data, inbuf, inbufend, |
f1d5c60d | 64 | NULL, irreversible, 0, 0)); |
8619129f | 65 | } |
d64b6ad0 UD |
66 | while (result == __GCONV_EMPTY_INPUT && last_start != *inbuf |
67 | && *inbuf + cd->__steps->__min_needed_from <= inbufend); | |
4bca4c17 | 68 | } |
6973fc01 | 69 | |
8619129f | 70 | if (outbuf != NULL && *outbuf != NULL) |
d64b6ad0 | 71 | *outbuf = cd->__data[last_step].__outbuf; |
8619129f | 72 | |
6973fc01 UD |
73 | return result; |
74 | } |