diff options
Diffstat (limited to 'StdLib/LibC/Locale/multibyte_sb.c')
| -rw-r--r-- | StdLib/LibC/Locale/multibyte_sb.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/StdLib/LibC/Locale/multibyte_sb.c b/StdLib/LibC/Locale/multibyte_sb.c new file mode 100644 index 0000000000..6d57cd6c09 --- /dev/null +++ b/StdLib/LibC/Locale/multibyte_sb.c @@ -0,0 +1,272 @@ +/* $NetBSD: multibyte_sb.c,v 1.5 2004/07/21 20:27:46 tshiozak Exp $ */
+
+/*
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include <LibConfig.h>
+#include <sys/EfiCdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char *sccsid = "from: @(#)multibyte.c 5.1 (Berkeley) 2/18/91";
+#else
+__RCSID("$NetBSD: multibyte_sb.c,v 1.5 2004/07/21 20:27:46 tshiozak Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <assert.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <wchar.h>
+
+/*
+ * Stub multibyte character functions.
+ * This cheezy implementation is fixed to the native single-byte
+ * character set.
+ */
+
+/*ARGSUSED*/
+int
+mbsinit(const mbstate_t *ps)
+{
+
+ return 1;
+}
+
+/*ARGSUSED*/
+size_t
+mbrlen(
+ const char *s,
+ size_t n,
+ mbstate_t *ps
+ )
+{
+
+ /* ps appears to be unused */
+
+ if (s == NULL || *s == '\0')
+ return 0;
+ if (n == 0)
+ return (size_t)-1;
+ return 1;
+}
+
+int
+mblen(
+ const char *s,
+ size_t n
+ )
+{
+
+ /* s may be NULL */
+
+ return (int)mbrlen(s, n, NULL);
+}
+
+/*ARGSUSED*/
+size_t
+mbrtowc(
+ wchar_t *pwc,
+ const char *s,
+ size_t n,
+ mbstate_t *ps
+ )
+{
+
+ /* pwc may be NULL */
+ /* s may be NULL */
+ /* ps appears to be unused */
+
+ if (s == NULL)
+ return 0;
+ if (n == 0)
+ return (size_t)-1;
+ if (pwc)
+ *pwc = (wchar_t) *s;
+ return (*s != '\0');
+}
+
+int
+mbtowc(
+ wchar_t *pwc,
+ const char *s,
+ size_t n
+ )
+{
+
+ /* pwc may be NULL */
+ /* s may be NULL */
+
+ return (int)mbrtowc(pwc, s, n, NULL);
+}
+
+/*ARGSUSED*/
+size_t
+wcrtomb(
+ char *s,
+ wchar_t wchar,
+ mbstate_t *ps
+ )
+{
+
+ /* s may be NULL */
+ /* ps appears to be unused */
+
+ if (s == NULL)
+ return 0;
+
+ *s = (char) wchar;
+ return 1;
+}
+
+int
+wctomb(
+ char *s,
+ wchar_t wchar
+ )
+{
+
+ /* s may be NULL */
+
+ return (int)wcrtomb(s, wchar, NULL);
+}
+
+/*ARGSUSED*/
+size_t
+mbsrtowcs(
+ wchar_t *pwcs,
+ const char **s,
+ size_t n,
+ mbstate_t *ps
+ )
+{
+ int count = 0;
+
+ /* pwcs may be NULL */
+ /* s may be NULL */
+ /* ps appears to be unused */
+
+ if (!s || !*s)
+ return 0;
+
+ if (n != 0) {
+ if (pwcs != NULL) {
+ do {
+ if ((*pwcs++ = (wchar_t) *(*s)++) == 0)
+ break;
+ count++;
+ } while (--n != 0);
+ } else {
+ do {
+ if (((wchar_t)*(*s)++) == 0)
+ break;
+ count++;
+ } while (--n != 0);
+ }
+ }
+
+ return count;
+}
+
+size_t
+mbstowcs(
+ wchar_t *pwcs,
+ const char *s,
+ size_t n
+ )
+{
+
+ /* pwcs may be NULL */
+ /* s may be NULL */
+
+ return mbsrtowcs(pwcs, &s, n, NULL);
+}
+
+/*ARGSUSED*/
+size_t
+wcsrtombs(
+ char *s,
+ const wchar_t **pwcs,
+ size_t n,
+ mbstate_t *ps
+ )
+{
+ int count = 0;
+
+ /* s may be NULL */
+ /* pwcs may be NULL */
+ /* ps appears to be unused */
+
+ if (pwcs == NULL || *pwcs == NULL)
+ return (0);
+
+ if (s == NULL) {
+ while (*(*pwcs)++ != 0)
+ count++;
+ return(count);
+ }
+
+ if (n != 0) {
+ do {
+ if ((*s++ = (char) *(*pwcs)++) == 0)
+ break;
+ count++;
+ } while (--n != 0);
+ }
+
+ return count;
+}
+
+size_t
+wcstombs(
+ char *s,
+ const wchar_t *pwcs,
+ size_t n
+ )
+{
+
+ /* s may be NULL */
+ /* pwcs may be NULL */
+
+ return wcsrtombs(s, &pwcs, n, NULL);
+}
+
+wint_t
+btowc(int c)
+{
+ if (c == EOF || c & ~0xFF)
+ return WEOF;
+ return (wint_t)c;
+}
+
+int
+wctob(wint_t c)
+{
+ if (c == WEOF || c & ~0xFF)
+ return EOF;
+ return (int)c;
+}
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