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bfff8b1b | 1 | /* Copyright (C) 1996-2017 Free Software Foundation, Inc. |
33a934a3 UD |
2 | This file is part of the GNU C Library. |
3 | Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 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 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
30de3b18 | 18 | |
55985355 | 19 | #include <dlfcn.h> |
4bca4c17 | 20 | #include <gconv.h> |
30de3b18 | 21 | #include <stdio.h> |
4bca4c17 | 22 | #include <string.h> |
30de3b18 | 23 | #include <wchar.h> |
4bca4c17 | 24 | #include <wcsmbsload.h> |
30de3b18 | 25 | |
915a6c51 UD |
26 | #include <sysdep.h> |
27 | ||
30de3b18 RM |
28 | |
29 | int | |
9d46370c | 30 | wctob (wint_t c) |
30de3b18 | 31 | { |
3cc4a097 | 32 | unsigned char buf[MB_LEN_MAX]; |
d64b6ad0 | 33 | struct __gconv_step_data data; |
4bca4c17 | 34 | wchar_t inbuf[1]; |
8619129f | 35 | wchar_t *inptr = inbuf; |
5e7a22c9 | 36 | size_t dummy; |
4bca4c17 | 37 | int status; |
96310297 | 38 | const struct gconv_fcts *fcts; |
4bca4c17 | 39 | |
0e16ecfa UD |
40 | if (c == WEOF) |
41 | return EOF; | |
42 | ||
91682d70 UD |
43 | /* We know that only ASCII compatible encodings are used for the |
44 | locale and that the wide character encoding is ISO 10646. */ | |
45 | if (c >= L'\0' && c <= L'\x7f') | |
46 | return (int) c; | |
47 | ||
4bca4c17 | 48 | /* Tell where we want the result. */ |
d64b6ad0 UD |
49 | data.__outbuf = buf; |
50 | data.__outbufend = buf + MB_LEN_MAX; | |
51 | data.__invocation_counter = 0; | |
52 | data.__internal_use = 1; | |
85830c4c | 53 | data.__flags = __GCONV_IS_LAST; |
d64b6ad0 | 54 | data.__statep = &data.__state; |
4bca4c17 UD |
55 | |
56 | /* Make sure we start in the initial state. */ | |
57 | memset (&data.__state, '\0', sizeof (mbstate_t)); | |
58 | ||
96310297 RM |
59 | /* Get the conversion functions. */ |
60 | fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE)); | |
4bca4c17 UD |
61 | |
62 | /* Create the input string. */ | |
63 | inbuf[0] = c; | |
4bca4c17 | 64 | |
9c7ff11a | 65 | const unsigned char *argptr = (const unsigned char *) inptr; |
915a6c51 UD |
66 | __gconv_fct fct = fcts->tomb->__fct; |
67 | #ifdef PTR_DEMANGLE | |
68 | if (fcts->tomb->__shlib_handle != NULL) | |
69 | PTR_DEMANGLE (fct); | |
70 | #endif | |
71 | status = DL_CALL_FCT (fct, | |
9c7ff11a UD |
72 | (fcts->tomb, &data, &argptr, |
73 | argptr + sizeof (inbuf[0]), NULL, &dummy, 0, 1)); | |
55985355 | 74 | |
4bca4c17 | 75 | /* The conversion failed or the output is too long. */ |
d64b6ad0 UD |
76 | if ((status != __GCONV_OK && status != __GCONV_FULL_OUTPUT |
77 | && status != __GCONV_EMPTY_INPUT) | |
78 | || data.__outbuf != (unsigned char *) (buf + 1)) | |
3c720987 | 79 | return EOF; |
4bca4c17 | 80 | |
91682d70 | 81 | return buf[0]; |
30de3b18 | 82 | } |