123 lines
5.2 KiB
C
Executable File
123 lines
5.2 KiB
C
Executable File
/* Charset conversion with out-of-memory checking.
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Copyright (C) 2001-2007, 2009-2024 Free Software Foundation, Inc.
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Written by Bruno Haible and Simon Josefsson.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef _XSTRICONVEH_H
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#define _XSTRICONVEH_H
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/* This file uses _GL_ATTRIBUTE_MALLOC, HAVE_ICONV. */
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#if !_GL_CONFIG_H_INCLUDED
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#error "Please include config.h first."
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#endif
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#include <stdlib.h>
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/* Get the 'enum iconv_ilseq_handler' and iconveh_t types, and the
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iconveh_open, iconveh_close declarations. */
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#include "striconveh.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if HAVE_ICONV
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/* Convert an entire string from one encoding to another, using iconv.
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The original string is at [SRC,...,SRC+SRCLEN-1].
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CD points to the conversion descriptor from FROMCODE to TOCODE, created by
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the function iconveh_open().
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If OFFSETS is not NULL, it should point to an array of SRCLEN integers; this
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array is filled with offsets into the result, i.e. the character starting
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at SRC[i] corresponds to the character starting at (*RESULTP)[OFFSETS[i]],
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and other offsets are set to (size_t)(-1).
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*RESULTP and *LENGTH should initially be a scratch buffer and its size,
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or *RESULTP can initially be NULL.
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May erase the contents of the memory at *RESULTP.
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Upon memory allocation failure, report the error and exit.
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Return value: 0 if successful, otherwise -1 and errno set.
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If successful: The resulting string is stored in *RESULTP and its length
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in *LENGTHP. *RESULTP is set to a freshly allocated memory block, or is
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unchanged if no dynamic memory allocation was necessary. */
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extern int
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xmem_cd_iconveh (const char *src, size_t srclen,
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const iconveh_t *cd,
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enum iconv_ilseq_handler handler,
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size_t *offsets,
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char **resultp, size_t *lengthp);
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/* Convert an entire string from one encoding to another, using iconv.
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The original string is the NUL-terminated string starting at SRC.
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CD points to the conversion descriptor from FROMCODE to TOCODE, created by
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the function iconveh_open().
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Both the "from" and the "to" encoding must use a single NUL byte at the end
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of the string (i.e. not UCS-2, UCS-4, UTF-16, UTF-32).
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Allocate a malloced memory block for the result.
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Upon memory allocation failure, report the error and exit.
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Return value: the freshly allocated resulting NUL-terminated string if
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successful, otherwise NULL and errno set. */
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extern char *
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xstr_cd_iconveh (const char *src,
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const iconveh_t *cd,
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enum iconv_ilseq_handler handler)
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_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE;
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#endif
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/* Convert an entire string from one encoding to another, using iconv.
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The original string is at [SRC,...,SRC+SRCLEN-1].
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If OFFSETS is not NULL, it should point to an array of SRCLEN integers; this
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array is filled with offsets into the result, i.e. the character starting
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at SRC[i] corresponds to the character starting at (*RESULTP)[OFFSETS[i]],
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and other offsets are set to (size_t)(-1).
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*RESULTP and *LENGTH should initially be a scratch buffer and its size,
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or *RESULTP can initially be NULL.
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May erase the contents of the memory at *RESULTP.
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Upon memory allocation failure, report the error and exit.
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Return value: 0 if successful, otherwise -1 and errno set.
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If successful: The resulting string is stored in *RESULTP and its length
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in *LENGTHP. *RESULTP is set to a freshly allocated memory block, or is
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unchanged if no dynamic memory allocation was necessary. */
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extern int
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xmem_iconveh (const char *src, size_t srclen,
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const char *from_codeset, const char *to_codeset,
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enum iconv_ilseq_handler handler,
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size_t *offsets,
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char **resultp, size_t *lengthp);
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/* Convert an entire string from one encoding to another, using iconv.
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The original string is the NUL-terminated string starting at SRC.
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Both the "from" and the "to" encoding must use a single NUL byte at the
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end of the string (i.e. not UCS-2, UCS-4, UTF-16, UTF-32).
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Allocate a malloced memory block for the result.
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Upon memory allocation failure, report the error and exit.
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Return value: the freshly allocated resulting NUL-terminated string if
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successful, otherwise NULL and errno set. */
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extern char *
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xstr_iconveh (const char *src,
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const char *from_codeset, const char *to_codeset,
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enum iconv_ilseq_handler handler)
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_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _XSTRICONVEH_H */
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