Readd ascii.c forgotten in r290618

diff --git a/lib/libc/locale/ascii.c b/lib/libc/locale/ascii.c
new file mode 100644 (file)
index 0000000..3e625e4
--- /dev/null
+++ b/lib/libc/locale/ascii.c
@@ -0,0 +1,192 @@
+/*
+ * Copyright 2013 Garrett D'Amore <garrett@damore.org>
+ * Copyright 2010 Nexenta Systems, Inc.  All rights reserved.
+ * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
+ * Copyright (c) 1993
+ *     The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Paul Borman at Krystal Technologies.
+ *
+ * Copyright (c) 2011 The FreeBSD Foundation
+ * All rights reserved.
+ * Portions of this software were developed by David Chisnall
+ * under sponsorship from the FreeBSD Foundation.
+ *
+ * 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.
+ * 4. 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.
+ *
+ * @(#)none.c  8.1 (Berkeley) 6/4/93
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <errno.h>
+#include <limits.h>
+#include <runetype.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include "mblocal.h"
+
+static size_t  _ascii_mbrtowc(wchar_t * __restrict, const char * __restrict,
+                   size_t, mbstate_t * __restrict);
+static int     _ascii_mbsinit(const mbstate_t *);
+static size_t  _ascii_mbsnrtowcs(wchar_t * __restrict dst,
+                   const char ** __restrict src, size_t nms, size_t len,
+                   mbstate_t * __restrict ps __unused);
+static size_t  _ascii_wcrtomb(char * __restrict, wchar_t,
+                   mbstate_t * __restrict);
+static size_t  _ascii_wcsnrtombs(char * __restrict, const wchar_t ** __restrict,
+                   size_t, size_t, mbstate_t * __restrict);
+
+int
+_ascii_init(struct xlocale_ctype *l, _RuneLocale *rl)
+{
+
+       l->__mbrtowc = _ascii_mbrtowc;
+       l->__mbsinit = _ascii_mbsinit;
+       l->__mbsnrtowcs = _ascii_mbsnrtowcs;
+       l->__wcrtomb = _ascii_wcrtomb;
+       l->__wcsnrtombs = _ascii_wcsnrtombs;
+       l->runes = rl;
+       l->__mb_cur_max = 1;
+       l->__mb_sb_limit = 128;
+       return(0);
+}
+
+static int
+_ascii_mbsinit(const mbstate_t *ps __unused)
+{
+       /*
+        * Encoding is not state dependent - we are always in the
+        * initial state.
+        */
+       return (1);
+}
+
+static size_t
+_ascii_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
+    mbstate_t * __restrict ps __unused)
+{
+       if (s == NULL)
+               /* Reset to initial shift state (no-op) */
+               return (0);
+       if (n == 0)
+               /* Incomplete multibyte sequence */
+               return ((size_t)-2);
+       if (*s & 0x80) {
+               errno = EILSEQ;
+               return ((size_t)-1);
+       }
+       if (pwc != NULL)
+               *pwc = (unsigned char)*s;
+       return (*s == '\0' ? 0 : 1);
+}
+
+static size_t
+_ascii_wcrtomb(char * __restrict s, wchar_t wc,
+    mbstate_t * __restrict ps __unused)
+{
+
+       if (s == NULL)
+               /* Reset to initial shift state (no-op) */
+               return (1);
+       if (wc < 0 || wc > 127) {
+               errno = EILSEQ;
+               return ((size_t)-1);
+       }
+       *s = (unsigned char)wc;
+       return (1);
+}
+
+static size_t
+_ascii_mbsnrtowcs(wchar_t * __restrict dst, const char ** __restrict src,
+    size_t nms, size_t len, mbstate_t * __restrict ps __unused)
+{
+       const char *s;
+       size_t nchr;
+
+       if (dst == NULL) {
+               s = memchr(*src, '\0', nms);
+               if (*s & 0x80) {
+                       errno = EILSEQ;
+                       return ((size_t)-1);
+               }
+               return (s != NULL ? s - *src : nms);
+       }
+
+       s = *src;
+       nchr = 0;
+       while (len-- > 0 && nms-- > 0) {
+               if (*s & 0x80) {
+                       errno = EILSEQ;
+                       return ((size_t)-1);
+               }
+               if ((*dst++ = (unsigned char)*s++) == L'\0') {
+                       *src = NULL;
+                       return (nchr);
+               }
+               nchr++;
+       }
+       *src = s;
+       return (nchr);
+}
+
+static size_t
+_ascii_wcsnrtombs(char * __restrict dst, const wchar_t ** __restrict src,
+    size_t nwc, size_t len, mbstate_t * __restrict ps __unused)
+{
+       const wchar_t *s;
+       size_t nchr;
+
+       if (dst == NULL) {
+               for (s = *src; nwc > 0 && *s != L'\0'; s++, nwc--) {
+                       if (*s < 0 || *s > 127) {
+                               errno = EILSEQ;
+                               return ((size_t)-1);
+                       }
+               }
+               return (s - *src);
+       }
+
+       s = *src;
+       nchr = 0;
+       while (len-- > 0 && nwc-- > 0) {
+               if (*s < 0 || *s > 127) {
+                       errno = EILSEQ;
+                       return ((size_t)-1);
+               }
+               if ((*dst++ = *s++) == '\0') {
+                       *src = NULL;
+                       return (nchr);
+               }
+               nchr++;
+       }
+       *src = s;
+       return (nchr);
+}