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Diffstat (limited to 'lib/libncp/ncpl_nls.c')
| -rw-r--r-- | lib/libncp/ncpl_nls.c | 272 |
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..f9e14f5 --- /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.to_lower = def2lower; + ncp_nls.to_upper = 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.to_lower[i] = tolower(i); + ncp_nls.to_upper[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; +} |
