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-rw-r--r--lib/libc/iconv/citrus_bcs.c168
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diff --git a/lib/libc/iconv/citrus_bcs.c b/lib/libc/iconv/citrus_bcs.c
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+++ b/lib/libc/iconv/citrus_bcs.c
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+/* $FreeBSD$ */
+/* $NetBSD: citrus_bcs.c,v 1.5 2005/05/14 17:55:42 tshiozak Exp $ */
+
+/*-
+ * Copyright (c)2003 Citrus Project,
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <sys/cdefs.h>
+
+#include <assert.h>
+#include <stdlib.h>
+
+#include "citrus_namespace.h"
+#include "citrus_bcs.h"
+
+/*
+ * case insensitive comparison between two C strings.
+ */
+int
+_citrus_bcs_strcasecmp(const char * __restrict str1,
+ const char * __restrict str2)
+{
+ int c1, c2;
+
+ c1 = c2 = 1;
+
+ while (c1 && c2 && c1 == c2) {
+ c1 = _bcs_toupper(*str1++);
+ c2 = _bcs_toupper(*str2++);
+ }
+
+ return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1));
+}
+
+/*
+ * case insensitive comparison between two C strings with limitation of length.
+ */
+int
+_citrus_bcs_strncasecmp(const char * __restrict str1,
+ const char * __restrict str2, size_t sz)
+{
+ int c1, c2;
+
+ c1 = c2 = 1;
+
+ while (c1 && c2 && c1 == c2 && sz != 0) {
+ c1 = _bcs_toupper(*str1++);
+ c2 = _bcs_toupper(*str2++);
+ sz--;
+ }
+
+ return ((c1 == c2) ? 0 : ((c1 > c2) ? 1 : -1));
+}
+
+/*
+ * skip white space characters.
+ */
+const char *
+_citrus_bcs_skip_ws(const char *p)
+{
+
+ while (*p && _bcs_isspace(*p))
+ p++;
+
+ return (p);
+}
+
+/*
+ * skip non white space characters.
+ */
+const char *
+_citrus_bcs_skip_nonws(const char *p)
+{
+
+ while (*p && !_bcs_isspace(*p))
+ p++;
+
+ return (p);
+}
+
+/*
+ * skip white space characters with limitation of length.
+ */
+const char *
+_citrus_bcs_skip_ws_len(const char * __restrict p, size_t * __restrict len)
+{
+
+ while (*p && *len > 0 && _bcs_isspace(*p)) {
+ p++;
+ (*len)--;
+ }
+
+ return (p);
+}
+
+/*
+ * skip non white space characters with limitation of length.
+ */
+const char *
+_citrus_bcs_skip_nonws_len(const char * __restrict p, size_t * __restrict len)
+{
+
+ while (*p && *len > 0 && !_bcs_isspace(*p)) {
+ p++;
+ (*len)--;
+ }
+
+ return (p);
+}
+
+/*
+ * truncate trailing white space characters.
+ */
+void
+_citrus_bcs_trunc_rws_len(const char * __restrict p, size_t * __restrict len)
+{
+
+ while (*len > 0 && _bcs_isspace(p[*len - 1]))
+ (*len)--;
+}
+
+/*
+ * destructive transliterate to lowercase.
+ */
+void
+_citrus_bcs_convert_to_lower(char *s)
+{
+
+ while (*s) {
+ *s = _bcs_tolower(*s);
+ s++;
+ }
+}
+
+/*
+ * destructive transliterate to uppercase.
+ */
+void
+_citrus_bcs_convert_to_upper(char *s)
+{
+
+ while (*s) {
+ *s = _bcs_toupper(*s);
+ s++;
+ }
+}
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