Initial import of ncp library sources.

Reviewed by:	jdp, mdodd

1 files changed, 272 insertions, 0 deletions

diff --git a/lib/libncp/ncpl_nls.c b/lib/libncp/ncpl_nls.c
new file mode 100644
index 0000000..92bc013
--- /dev/null
+++ b/lib/libncp/ncpl_nls.c
@@ -0,0 +1,272 @@
+/*
+ * Copyright (c) 1999, Boris Popov
+ * 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. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    This product includes software developed by Boris Popov.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * 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.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Languages support. Currently is very primitive.
+ */
+#include <sys/types.h>
+#include <ctype.h>
+#include <errno.h>
+#include <stdio.h>
+#include <strings.h>
+#include <locale.h>
+
+#include <netncp/ncp_lib.h>
+#include <netncp/ncp_cfg.h>
+#include <netncp/ncp_nls.h>
+
+#ifndef	NCP_NLS_DEFAULT
+#define	NCP_NLS_DEFAULT	NCP_NLS_AS_IS
+#endif
+
+/*
+ * TODO: Make all tables dynamically loadable.
+ */
+#ifdef NCP_NLS_KOI2CP866
+/* Russian tables from easy-cyrillic:
+ * Copyright (C) 1993-1994 by Andrey A. Chernov, Moscow, Russia
+ */
+static u_int8_t alt2koi8[] = {
+	0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f,	/* 0x00 */
+	0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f,
+	0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f,	/* 0x10 */
+	0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f,
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,	/* 0x20 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,	/* 0x30 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x5f,
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,	/* 0x40 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,	/* 0x50 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,	/* 0x60 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,	/* 0x70 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+	0xe1, 0xe2, 0xf7, 0xe7, 0xe4, 0xe5, 0xf6, 0xfa,
+	0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0,
+	0xf2, 0xf3, 0xf4, 0xf5, 0xe6, 0xe8, 0xe3, 0xfe,
+	0xfb, 0xfd, 0xff, 0xf9, 0xf8, 0xfc, 0xe0, 0xf1,
+	0xc1, 0xc2, 0xd7, 0xc7, 0xc4, 0xc5, 0xd6, 0xda,
+	0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0,
+	0x90, 0x91, 0x92, 0x81, 0x87, 0xb2, 0xb4, 0xa7,
+	0xa6, 0xb5, 0xa1, 0xa8, 0xae, 0xad, 0xac, 0x83,
+	0x84, 0x89, 0x88, 0x86, 0x80, 0x8a, 0xaf, 0xb0,
+	0xab, 0xa5, 0xbb, 0xb8, 0xb1, 0xa0, 0xbe, 0xb9,
+	0xba, 0xb6, 0xb7, 0xaa, 0xa9, 0xa2, 0xa4, 0xbd,
+	0xbc, 0x85, 0x82, 0x8d, 0x8c, 0x8e, 0x8f, 0x8b,
+	0xd2, 0xd3, 0xd4, 0xd5, 0xc6, 0xc8, 0xc3, 0xde,
+	0xdb, 0xdd, 0xdf, 0xd9, 0xd8, 0xdc, 0xc0, 0xd1,
+	0xb3, 0xa3, 0x99, 0x98, 0x93, 0x9b, 0x9f, 0x97,
+	0x9c, 0x95, 0x9e, 0x96, 0xbf, 0x9d, 0x94, 0x9a
+};
+
+static u_int8_t koi82alt[] = {
+	0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f,	/* 0x00 */
+	0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f,
+	0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f,	/* 0x10 */
+	0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f, 0x5f,
+	0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,	/* 0x20 */
+	0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+	0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,	/* 0x30 */
+	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x5f,
+	0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,	/* 0x40 */
+	0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+	0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,	/* 0x50 */
+	0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
+	0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,	/* 0x60 */
+	0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+	0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,	/* 0x70 */
+	0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+	0xc4, 0xb3, 0xda, 0xbf, 0xc0, 0xd9, 0xc3, 0xb4,	/* 0x80 */
+	0xc2, 0xc1, 0xc5, 0xdf, 0xdc, 0xdb, 0xdd, 0xde,
+	0xb0, 0xb1, 0xb2, 0xf4, 0xfe, 0xf9, 0xfb, 0xf7,
+	0xf3, 0xf2, 0xff, 0xf5, 0xf8, 0xfd, 0xfa, 0xf6,
+	0xcd, 0xba, 0xd5, 0xf1, 0xd6, 0xc9, 0xb8, 0xb7,
+	0xbb, 0xd4, 0xd3, 0xc8, 0xbe, 0xbd, 0xbc, 0xc6,
+	0xc7, 0xcc, 0xb5, 0xf0, 0xb6, 0xb9, 0xd1, 0xd2,
+	0xcb, 0xcf, 0xd0, 0xca, 0xd8, 0xd7, 0xce, 0xfc,
+	0xee, 0xa0, 0xa1, 0xe6, 0xa4, 0xa5, 0xe4, 0xa3,
+	0xe5, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae,
+	0xaf, 0xef, 0xe0, 0xe1, 0xe2, 0xe3, 0xa6, 0xa2,
+	0xec, 0xeb, 0xa7, 0xe8, 0xed, 0xe9, 0xe7, 0xea,
+	0x9e, 0x80, 0x81, 0x96, 0x84, 0x85, 0x94, 0x83,
+	0x95, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e,
+	0x8f, 0x9f, 0x90, 0x91, 0x92, 0x93, 0x86, 0x82,	/* 0xf0 */ 
+	0x9c, 0x9b, 0x87, 0x98, 0x9d, 0x99, 0x97, 0x9a
+};
+
+#endif
+
+static u_int8_t def2lower[256];
+static u_int8_t def2upper[256];
+
+/*
+ * List of available charsets
+ */
+struct ncp_nlsdesc {
+	int	scheme;
+	char	*name;
+	struct ncp_nlstables nls;
+};
+
+static struct ncp_nlsdesc ncp_nlslist[] = {
+	{NCP_NLS_AS_IS, NCP_NLS_AS_IS_NAME, 
+	    {def2lower, def2upper, NULL, NULL, 0}
+	},
+#ifdef NCP_NLS_KOI2CP866
+	{NCP_NLS_KOI_866, NCP_NLS_KOI_866_NAME, 
+	    {def2lower, def2upper, alt2koi8, koi82alt, 0}
+	},
+#endif
+	{NULL, 0}
+};
+
+struct ncp_nlstables ncp_nls;
+
+int
+ncp_nls_setlocale(char *name) {
+	int i;
+
+	ncp_nls.tolower = def2lower;
+	ncp_nls.toupper = def2upper;
+	if (setlocale(LC_CTYPE, name) == NULL) {
+		fprintf(stderr, "Can't set locale '%s'\n", name);
+		return EINVAL;
+	}
+	for (i = 0; i < 256; i++) {
+		ncp_nls.tolower[i] = tolower(i);
+		ncp_nls.toupper[i] = toupper(i);
+	}
+	return 0;
+}
+
+int
+ncp_nls_setrecode(int scheme) {
+	struct ncp_nlsdesc *nd;
+
+	if (scheme == 0) {
+#if NCP_NLS_DEFAULT
+		scheme = NCP_NLS_DEFAULT;
+#else
+		scheme = NCP_NLS_AS_IS;
+#endif
+	}
+	for (nd = ncp_nlslist; nd->name; nd++) {
+		if (nd->scheme != scheme) continue;
+		ncp_nls.u2n = nd->nls.u2n;
+		ncp_nls.n2u = nd->nls.n2u;
+		return ncp_nls_setlocale("");
+	}
+	fprintf(stderr, "Character conversion scheme %d was not compiled in\n", scheme);
+	return EINVAL;
+}
+
+int
+ncp_nls_setrecodebyname(char *name) {
+	struct ncp_nlsdesc *nd;
+
+	for (nd = ncp_nlslist; nd->name; nd++) {
+		if (strcmp(nd->name, name) != 0) continue;
+		ncp_nls.u2n = nd->nls.u2n;
+		ncp_nls.n2u = nd->nls.n2u;
+		return 0;
+	}
+	fprintf(stderr, "Character conversion scheme %s was not compiled in\n", name);
+	return EINVAL;
+}
+
+char *
+ncp_nls_str_n2u(char *dst, const char *src) {
+	char *p;
+
+	if (ncp_nls.n2u == NULL) {
+		return strcpy(dst, src);
+	}
+	p = dst;
+	while (*src)
+		*p++ = ncp_nls.n2u[(u_char)*(src++)];
+	*p = 0;
+	return dst;
+}
+
+char *
+ncp_nls_str_u2n(char *dst, const char *src) {
+	char *p;
+
+	if (ncp_nls.u2n == NULL) {
+		return strcpy(dst, src);
+	}
+	p = dst;
+	while (*src)
+		*p++ = ncp_nls.u2n[(u_char)*(src++)];
+	*p = 0;
+	return dst;
+}
+
+char *
+ncp_nls_mem_n2u(char *dst, const char *src, int size) {
+	char *p;
+
+	if (size == 0) return NULL;
+	if (ncp_nls.n2u == NULL) {
+		return memcpy(dst, src, size);
+	}
+	for(p = dst; size; size--, p++)
+		*p = ncp_nls.n2u[(u_char)*(src++)];
+	return dst;
+}
+
+char *
+ncp_nls_mem_u2n(char *dst, const char *src, int size) {
+	char *p;
+
+	if (size == 0) return NULL;
+	if (ncp_nls.u2n == NULL) {
+		return strcpy(dst, src);
+	}
+	for(p = dst; size; size--, p++)
+		*p = ncp_nls.u2n[(u_char)*(src++)];
+	return dst;
+}
+
+char *
+ncp_str_upper(char *s) {
+	char *p = s;
+	while (*s) {
+		*s = toupper(*s);
+		s++;
+	}
+	return p;
+}