1 /* Conversion to and from ISO 8859-1. 2 Copyright (C) 1997-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <dlfcn.h> 20 #include <stdint.h> 21 22 /* Definitions used in the body of the `gconv' function. */ 23 #define CHARSET_NAME "ISO-8859-1//" 24 #define FROM_LOOP from_iso8859_1 25 #define TO_LOOP to_iso8859_1 26 #define DEFINE_INIT 1 27 #define DEFINE_FINI 1 28 #define MIN_NEEDED_FROM 1 29 #define MIN_NEEDED_TO 4 30 #define ONE_DIRECTION 0 31 32 /* First define the conversion function from ISO 8859-1 to UCS4. */ 33 #define MIN_NEEDED_INPUT MIN_NEEDED_FROM 34 #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO 35 #define LOOPFCT FROM_LOOP 36 #define BODY \ 37 *((uint32_t *) outptr) = *inptr++; \ 38 outptr += sizeof (uint32_t); 39 #define ONEBYTE_BODY \ 40 { \ 41 return c; \ 42 } 43 #include <iconv/loop.c> 44 45 46 /* Next, define the other direction. */ 47 #define MIN_NEEDED_INPUT MIN_NEEDED_TO 48 #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM 49 #define LOOPFCT TO_LOOP 50 #define BODY \ 51 { \ 52 uint32_t ch = *((const uint32_t *) inptr); \ 53 if (__glibc_unlikely (ch > 0xff)) \ 54 { \ 55 UNICODE_TAG_HANDLER (ch, 4); \ 56 \ 57 /* We have an illegal character. */ \ 58 STANDARD_TO_LOOP_ERR_HANDLER (4); \ 59 } \ 60 else \ 61 *outptr++ = (unsigned char) ch; \ 62 inptr += 4; \ 63 } 64 #define LOOP_NEED_FLAGS 65 #include <iconv/loop.c> 66 67 68 /* Now define the toplevel functions. */ 69 #include <iconv/skeleton.c> 70