| 1 | /* Charset conversion.
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| 2 | Copyright (C) 2001-2004, 2006-2007, 2009-2021 Free Software Foundation, Inc.
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| 3 | Written by Bruno Haible and Simon Josefsson.
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| 4 |
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| 5 | This file is free software: you can redistribute it and/or modify
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| 6 | it under the terms of the GNU Lesser General Public License as
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| 7 | published by the Free Software Foundation; either version 2.1 of the
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| 8 | License, or (at your option) any later version.
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| 9 |
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| 10 | This file is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU Lesser General Public License for more details.
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| 14 |
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| 15 | You should have received a copy of the GNU Lesser General Public License
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| 16 | along with this program. If not, see <https://www.gnu.org/licenses/>. */
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| 17 |
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| 18 | #ifndef _STRICONV_H
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| 19 | #define _STRICONV_H
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| 20 |
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| 21 | #include <stdlib.h>
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| 22 | #if HAVE_ICONV
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| 23 | #include <iconv.h>
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| 24 | #endif
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| 25 |
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| 26 |
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| 27 | #ifdef __cplusplus
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| 28 | extern "C" {
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| 29 | #endif
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| 30 |
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| 31 |
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| 32 | #if HAVE_ICONV
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| 33 |
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| 34 | /* Convert an entire string from one encoding to another, using iconv.
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| 35 | The original string is at [SRC,...,SRC+SRCLEN-1].
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| 36 | The conversion descriptor is passed as CD.
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| 37 | *RESULTP and *LENGTH should initially be a scratch buffer and its size,
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| 38 | or *RESULTP can initially be NULL.
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| 39 | May erase the contents of the memory at *RESULTP.
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| 40 | Return value: 0 if successful, otherwise -1 and errno set.
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| 41 | If successful: The resulting string is stored in *RESULTP and its length
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| 42 | in *LENGTHP. *RESULTP is set to a freshly allocated memory block, or is
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| 43 | unchanged if no dynamic memory allocation was necessary. */
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| 44 | extern int mem_cd_iconv (const char *src, size_t srclen, iconv_t cd,
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| 45 | char **resultp, size_t *lengthp);
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| 46 |
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| 47 | /* Convert an entire string from one encoding to another, using iconv.
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| 48 | The original string is the NUL-terminated string starting at SRC.
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| 49 | The conversion descriptor is passed as CD. Both the "from" and the "to"
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| 50 | encoding must use a single NUL byte at the end of the string (i.e. not
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| 51 | UCS-2, UCS-4, UTF-16, UTF-32).
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| 52 | Allocate a malloced memory block for the result.
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| 53 | Return value: the freshly allocated resulting NUL-terminated string if
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| 54 | successful, otherwise NULL and errno set. */
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| 55 | extern char * str_cd_iconv (const char *src, iconv_t cd)
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| 56 | _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE;
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| 57 |
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| 58 | #endif
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| 59 |
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| 60 | /* Convert an entire string from one encoding to another, using iconv.
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| 61 | The original string is the NUL-terminated string starting at SRC.
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| 62 | Both the "from" and the "to" encoding must use a single NUL byte at the
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| 63 | end of the string (i.e. not UCS-2, UCS-4, UTF-16, UTF-32).
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| 64 | Allocate a malloced memory block for the result.
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| 65 | Return value: the freshly allocated resulting NUL-terminated string if
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| 66 | successful, otherwise NULL and errno set. */
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| 67 | extern char * str_iconv (const char *src,
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| 68 | const char *from_codeset, const char *to_codeset)
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| 69 | _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE;
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| 70 |
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| 71 |
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| 72 | #ifdef __cplusplus
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| 73 | }
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| 74 | #endif
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| 75 |
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| 76 |
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| 77 | #endif /* _STRICONV_H */
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