1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2020 Robert Mustacchi 14 */ 15 16 /* 17 * C11 c32rtomb(3C) support. 18 * 19 * The char32_t type is designed to represent a UTF-32 value, which is what we 20 * can represent with a wchar_t. This is basically a wrapper around wcrtomb(). 21 */ 22 23 #include <locale.h> 24 #include <wchar.h> 25 #include <xlocale.h> 26 #include <uchar.h> 27 #include <errno.h> 28 #include "unicode.h" 29 30 static mbstate_t c32rtomb_state; 31 32 size_t c32rtomb(char * restrict str,char32_t c32,mbstate_t * restrict ps)33c32rtomb(char *restrict str, char32_t c32, mbstate_t *restrict ps) 34 { 35 if ((c32 >= UNICODE_SUR_MIN && c32 <= UNICODE_SUR_MAX) || 36 c32 > UNICODE_SUP_MAX) { 37 errno = EILSEQ; 38 return ((size_t)-1); 39 } 40 41 if (ps == NULL) { 42 ps = &c32rtomb_state; 43 } 44 45 if (str == NULL) { 46 c32 = L'\0'; 47 } 48 49 return (wcrtomb_l(str, (wchar_t)c32, ps, uselocale((locale_t)0))); 50 } 51