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d614a753 | 1 | /* Copyright (C) 1991-2020 Free Software Foundation, Inc. |
7cc27f44 UD |
2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
7cc27f44 UD |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, | |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
7cc27f44 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
28f540f4 | 17 | |
28f540f4 | 18 | #include <stdlib.h> |
53308042 | 19 | #include <string.h> |
6dbe2837 | 20 | #include <wchar.h> |
9ce5071a UD |
21 | #include <gconv.h> |
22 | #include <wcsmbs/wcsmbsload.h> | |
28f540f4 RM |
23 | |
24 | ||
1e99aede JJ |
25 | /* Shared with __wctomb_chk. */ |
26 | mbstate_t __wctomb_state attribute_hidden; | |
28f540f4 RM |
27 | |
28 | /* Convert WCHAR into its multibyte character representation, | |
6dbe2837 RM |
29 | putting this in S and returning its length. |
30 | ||
31 | Attention: this function should NEVER be intentionally used. | |
32 | The interface is completely stupid. The state is shared between | |
33 | all conversion functions. You should use instead the restartable | |
34 | version `wcrtomb'. */ | |
28f540f4 | 35 | int |
6dbe2837 | 36 | wctomb (char *s, wchar_t wchar) |
28f540f4 | 37 | { |
6dbe2837 RM |
38 | /* If S is NULL the function has to return null or not null |
39 | depending on the encoding having a state depending encoding or | |
9ce5071a | 40 | not. */ |
28f540f4 | 41 | if (s == NULL) |
9ce5071a | 42 | { |
96310297 RM |
43 | const struct gconv_fcts *fcts; |
44 | ||
45 | /* Get the conversion functions. */ | |
46 | fcts = get_gconv_fcts (_NL_CURRENT_DATA (LC_CTYPE)); | |
9ce5071a | 47 | |
9f097308 UD |
48 | /* This is an extension in the Unix standard which does not directly |
49 | violate ISO C. */ | |
1e99aede | 50 | memset (&__wctomb_state, '\0', sizeof __wctomb_state); |
9f097308 | 51 | |
96310297 | 52 | return fcts->tomb->__stateful; |
9ce5071a | 53 | } |
28f540f4 | 54 | |
1e99aede | 55 | return __wcrtomb (s, wchar, &__wctomb_state); |
28f540f4 | 56 | } |
e2ec9b4d | 57 | libc_hidden_def (wctomb) |