diff options
Diffstat (limited to 'newlib/libc/iconv/lib/nullconv.c')
| -rw-r--r-- | newlib/libc/iconv/lib/nullconv.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/newlib/libc/iconv/lib/nullconv.c b/newlib/libc/iconv/lib/nullconv.c new file mode 100644 index 000000000..d35027f9c --- /dev/null +++ b/newlib/libc/iconv/lib/nullconv.c @@ -0,0 +1,143 @@ +/* + * Copyright (c) 2003-2004, Artem B. Bityuckiy + * Copyright (c) 1999,2000, Konstantin Chuguev. 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 <_ansi.h> +#include <reent.h> +#include <sys/types.h> +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include "local.h" +#include "conv.h" + +static int null_conversion_dummy_data; + + +static _VOID_PTR +_DEFUN(null_conversion_open, (rptr, to, from), + struct _reent *rptr _AND + _CONST char *to _AND + _CONST char *from) +{ + return (_VOID_PTR)&null_conversion_dummy_data; +} + + +static size_t +_DEFUN(null_conversion_close, (rptr, data), + struct _reent *rptr _AND + _VOID_PTR data) +{ + return 0; +} + + +static size_t +_DEFUN(null_conversion_convert, + (rptr, data, inbuf, inbytesleft, outbuf, outbytesleft), + struct _reent *rptr _AND + _VOID_PTR data _AND + _CONST unsigned char **inbuf _AND + size_t *inbytesleft _AND + unsigned char **outbuf _AND + size_t *outbytesleft _AND + int flags) +{ + size_t result; + size_t len; + + if (*inbytesleft < *outbytesleft) + { + result = 0; + len = *inbytesleft; + } + else + { + result = (size_t)-1; + len = *outbytesleft; + __errno_r (rptr) = E2BIG; + } + + if ((flags & 1) == 0) + memcpy (*outbuf, *inbuf, len); + + *inbuf += len; + *outbuf += len; + *inbytesleft -= len; + *outbytesleft -= len; + + return result; +} + + +static int +_DEFUN(null_conversion_get_mb_cur_max, (data, direction), + _VOID_PTR data _AND + int direction) +{ + return ICONV_MB_LEN_MAX; +} + + +static _VOID +_DEFUN(null_conversion_get_state, (data, state, size), + _VOID_PTR data _AND + mbstate_t *state _AND + int direction) +{ + return; +} + + +static int +_DEFUN(null_conversion_set_state, (data, state, direction), + _VOID_PTR data _AND + mbstate_t *state _AND + int direction) +{ + return 0; +} + +static int +_DEFUN(null_conversion_is_stateful, (data, direction), + _VOID_PTR data _AND + int direction) +{ + return 0; +} + +/* Null conversion definition object */ +_CONST iconv_conversion_handlers_t +_iconv_null_conversion_handlers = +{ + null_conversion_open, + null_conversion_close, + null_conversion_convert, + null_conversion_get_state, + null_conversion_set_state, + null_conversion_get_mb_cur_max, + null_conversion_is_stateful +}; + |