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- /*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 2000-2001 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.
- *
- * 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>
- __FBSDID("$FreeBSD$");
- #include <sys/param.h>
- #include <sys/kernel.h>
- #include <sys/systm.h>
- #include <sys/malloc.h>
- #include <sys/iconv.h>
- #include "iconv_converter_if.h"
- /*
- * "XLAT" converter
- */
- #ifdef MODULE_DEPEND
- MODULE_DEPEND(iconv_xlat, libiconv, 2, 2, 2);
- #endif
- /*
- * XLAT converter instance
- */
- struct iconv_xlat {
- KOBJ_FIELDS;
- u_char * d_table;
- struct iconv_cspair * d_csp;
- };
- static int
- iconv_xlat_open(struct iconv_converter_class *dcp,
- struct iconv_cspair *csp, struct iconv_cspair *cspf, void **dpp)
- {
- struct iconv_xlat *dp;
- dp = (struct iconv_xlat *)kobj_create((struct kobj_class*)dcp, M_ICONV, M_WAITOK);
- dp->d_table = csp->cp_data;
- dp->d_csp = csp;
- csp->cp_refcount++;
- *dpp = (void*)dp;
- return 0;
- }
- static int
- iconv_xlat_close(void *data)
- {
- struct iconv_xlat *dp = data;
- dp->d_csp->cp_refcount--;
- kobj_delete((struct kobj*)data, M_ICONV);
- return 0;
- }
- static int
- iconv_xlat_conv(void *d2p, const char **inbuf,
- size_t *inbytesleft, char **outbuf, size_t *outbytesleft,
- int convchar, int casetype)
- {
- struct iconv_xlat *dp = (struct iconv_xlat*)d2p;
- const char *src;
- char *dst;
- int n, r;
- if (inbuf == NULL || *inbuf == NULL || outbuf == NULL || *outbuf == NULL)
- return 0;
- if (casetype != 0)
- return -1;
- if (convchar == 1)
- r = n = 1;
- else
- r = n = min(*inbytesleft, *outbytesleft);
- src = *inbuf;
- dst = *outbuf;
- while(r--)
- *dst++ = dp->d_table[(u_char)*src++];
- *inbuf += n;
- *outbuf += n;
- *inbytesleft -= n;
- *outbytesleft -= n;
- return 0;
- }
- static const char *
- iconv_xlat_name(struct iconv_converter_class *dcp)
- {
- return "xlat";
- }
- static kobj_method_t iconv_xlat_methods[] = {
- KOBJMETHOD(iconv_converter_open, iconv_xlat_open),
- KOBJMETHOD(iconv_converter_close, iconv_xlat_close),
- KOBJMETHOD(iconv_converter_conv, iconv_xlat_conv),
- #if 0
- KOBJMETHOD(iconv_converter_init, iconv_xlat_init),
- KOBJMETHOD(iconv_converter_done, iconv_xlat_done),
- #endif
- KOBJMETHOD(iconv_converter_name, iconv_xlat_name),
- {0, 0}
- };
- KICONV_CONVERTER(xlat, sizeof(struct iconv_xlat));
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