]>
Commit | Line | Data |
---|---|---|
96310297 | 1 | /* Copyright (C) 1996,1997,1998,1999,2000,2002 Free Software Foundation, Inc. |
33a934a3 | 2 | This file is part of the GNU C Library. |
34992338 | 3 | Contributed by Ulrich Drepper <drepper@gnu.org>, 1996. |
30de3b18 | 4 | |
33a934a3 | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
30de3b18 | 9 | |
33a934a3 UD |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
30de3b18 | 14 | |
41bdb6e2 AJ |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, write to the Free | |
17 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
18 | 02111-1307 USA. */ | |
30de3b18 | 19 | |
55985355 | 20 | #include <dlfcn.h> |
4bca4c17 | 21 | #include <gconv.h> |
30de3b18 | 22 | #include <stdio.h> |
4bca4c17 | 23 | #include <string.h> |
30de3b18 | 24 | #include <wchar.h> |
4bca4c17 | 25 | #include <wcsmbsload.h> |
34992338 | 26 | #include <limits.h> |
30de3b18 RM |
27 | |
28 | ||
29 | wint_t | |
2ad4fab2 | 30 | __btowc (c) |
30de3b18 RM |
31 | int c; |
32 | { | |
34992338 | 33 | wchar_t result; |
d64b6ad0 | 34 | struct __gconv_step_data data; |
b117f744 UD |
35 | unsigned char inbuf[1]; |
36 | const unsigned char *inptr = inbuf; | |
5e7a22c9 | 37 | size_t dummy; |
4bca4c17 | 38 | int status; |
96310297 | 39 | const struct gconv_fcts *fcts; |
4bca4c17 UD |
40 | |
41 | /* If the parameter does not fit into one byte or it is the EOF value | |
42 | we can give the answer now. */ | |
34992338 | 43 | if (c < SCHAR_MIN || c > UCHAR_MAX || c == EOF) |
4bca4c17 UD |
44 | return WEOF; |
45 | ||
46 | /* Tell where we want the result. */ | |
d64b6ad0 UD |
47 | data.__outbuf = (unsigned char *) &result; |
48 | data.__outbufend = data.__outbuf + sizeof (wchar_t); | |
49 | data.__invocation_counter = 0; | |
50 | data.__internal_use = 1; | |
85830c4c | 51 | data.__flags = __GCONV_IS_LAST; |
d64b6ad0 | 52 | data.__statep = &data.__state; |
d6204268 | 53 | data.__trans = NULL; |
4bca4c17 UD |
54 | |
55 | /* Make sure we start in the initial state. */ | |
56 | memset (&data.__state, '\0', sizeof (mbstate_t)); | |
57 | ||
96310297 RM |
58 | /* Get the conversion functions. */ |
59 | fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE)); | |
4bca4c17 UD |
60 | |
61 | /* Create the input string. */ | |
62 | inbuf[0] = c; | |
4bca4c17 | 63 | |
96310297 RM |
64 | status = DL_CALL_FCT (fcts->towc->__fct, |
65 | (fcts->towc, &data, &inptr, inptr + 1, | |
f1d5c60d | 66 | NULL, &dummy, 0, 1)); |
4bca4c17 | 67 | /* The conversion failed. */ |
d64b6ad0 UD |
68 | if (status != __GCONV_OK && status != __GCONV_FULL_OUTPUT |
69 | && status != __GCONV_EMPTY_INPUT) | |
34992338 | 70 | result = WEOF; |
4bca4c17 | 71 | |
34992338 | 72 | return result; |
30de3b18 | 73 | } |
2ad4fab2 | 74 | weak_alias (__btowc, btowc) |