1 files changed, 140 insertions, 0 deletions
diff --git a/lib/libc/locale/setrunelocale.c b/lib/libc/locale/setrunelocale.c
new file mode 100644
index 0000000..8cfddab
--- /dev/null
+++ b/lib/libc/locale/setrunelocale.c
@@ -0,0 +1,140 @@
+/*-
+ * 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.
+ *
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 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.
+ */
+
+#include <rune.h>
+#include <errno.h>
+#include <limits.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "setlocale.h"
+
+extern int		_none_init __P((_RuneLocale *));
+#ifdef XPG4
+extern int		_UTF2_init __P((_RuneLocale *));
+extern int		_EUC_init __P((_RuneLocale *));
+extern int		_BIG5_init __P((_RuneLocale *));
+extern int		_MSKanji_init __P((_RuneLocale *));
+extern int              _xpg4_setrunelocale __P((char *));
+#endif
+extern _RuneLocale      *_Read_RuneMagi __P((FILE *));
+
+#ifdef XPG4
+int
+setrunelocale(encoding)
+	char *encoding;
+{
+	return _xpg4_setrunelocale(encoding);
+}
+#endif
+
+int
+#ifndef XPG4
+setrunelocale(encoding)
+#else
+_xpg4_setrunelocale(encoding)
+#endif
+	char *encoding;
+{
+	FILE *fp;
+	char name[PATH_MAX];
+	_RuneLocale *rl;
+
+	if (!encoding || strlen(encoding) > ENCODING_LEN)
+	    return(EFAULT);
+
+	/*
+	 * The "C" and "POSIX" locale are always here.
+	 */
+	if (!strcmp(encoding, "C") || !strcmp(encoding, "POSIX")) {
+		_CurrentRuneLocale = &_DefaultRuneLocale;
+		return(0);
+	}
+
+	if (_PathLocale == NULL) {
+		char *p = getenv("PATH_LOCALE");
+
+		if (p != NULL
+#ifndef __NETBSD_SYSCALLS
+			&& !issetugid()
+#endif
+			) {
+			if (strlen(p) + 1/*"/"*/ + ENCODING_LEN +
+			    1/*"/"*/ + CATEGORY_LEN >= PATH_MAX)
+				return(EFAULT);
+			_PathLocale = strdup(p);
+			if (_PathLocale == NULL)
+				return (errno);
+		} else
+			_PathLocale = _PATH_LOCALE;
+	}
+	/* Range checking not needed, encoding length already checked above */
+	(void) strcpy(name, _PathLocale);
+	(void) strcat(name, "/");
+	(void) strcat(name, encoding);
+	(void) strcat(name, "/LC_CTYPE");
+
+	if ((fp = fopen(name, "r")) == NULL)
+		return(ENOENT);
+
+	if ((rl = _Read_RuneMagi(fp)) == 0) {
+		fclose(fp);
+		return(EFTYPE);
+	}
+	fclose(fp);
+
+#ifdef XPG4
+	if (!rl->encoding[0] || !strcmp(rl->encoding, "UTF2"))
+		return(_UTF2_init(rl));
+#else
+	if (!rl->encoding[0])
+		return(EINVAL);
+#endif
+	else if (!strcmp(rl->encoding, "NONE"))
+		return(_none_init(rl));
+#ifdef XPG4
+	else if (!strcmp(rl->encoding, "EUC"))
+		return(_EUC_init(rl));
+	else if (!strcmp(rl->encoding, "BIG5"))
+		return(_BIG5_init(rl));
+	else if (!strcmp(rl->encoding, "MSKanji"))
+		return(_MSKanji_init(rl));
+#endif
+	else
+		return(EINVAL);
+}
+