1 /* Charset conversion. 2 Copyright (C) 2001-2004, 2006-2007, 2009-2021 Free Software Foundation, Inc. 3 Written by Bruno Haible and Simon Josefsson. 4 5 This file is free software: you can redistribute it and/or modify 6 it under the terms of the GNU Lesser General Public License as 7 published by the Free Software Foundation; either version 2.1 of the 8 License, or (at your option) any later version. 9 10 This file 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 13 GNU Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public License 16 along with this program. If not, see <https://www.gnu.org/licenses/>. */ 17 18 #ifndef _STRICONV_H 19 #define _STRICONV_H 20 21 #include <stdlib.h> 22 #if HAVE_ICONV 23 #include <iconv.h> 24 #endif 25 26 27 #ifdef __cplusplus 28 extern "C" { 29 #endif 30 31 32 #if HAVE_ICONV 33 34 /* Convert an entire string from one encoding to another, using iconv. 35 The original string is at [SRC,...,SRC+SRCLEN-1]. 36 The conversion descriptor is passed as CD. 37 *RESULTP and *LENGTH should initially be a scratch buffer and its size, 38 or *RESULTP can initially be NULL. 39 May erase the contents of the memory at *RESULTP. 40 Return value: 0 if successful, otherwise -1 and errno set. 41 If successful: The resulting string is stored in *RESULTP and its length 42 in *LENGTHP. *RESULTP is set to a freshly allocated memory block, or is 43 unchanged if no dynamic memory allocation was necessary. */ 44 extern int mem_cd_iconv (const char *src, size_t srclen, iconv_t cd, 45 char **resultp, size_t *lengthp); 46 47 /* Convert an entire string from one encoding to another, using iconv. 48 The original string is the NUL-terminated string starting at SRC. 49 The conversion descriptor is passed as CD. Both the "from" and the "to" 50 encoding must use a single NUL byte at the end of the string (i.e. not 51 UCS-2, UCS-4, UTF-16, UTF-32). 52 Allocate a malloced memory block for the result. 53 Return value: the freshly allocated resulting NUL-terminated string if 54 successful, otherwise NULL and errno set. */ 55 extern char * str_cd_iconv (const char *src, iconv_t cd) 56 _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE; 57 58 #endif 59 60 /* Convert an entire string from one encoding to another, using iconv. 61 The original string is the NUL-terminated string starting at SRC. 62 Both the "from" and the "to" encoding must use a single NUL byte at the 63 end of the string (i.e. not UCS-2, UCS-4, UTF-16, UTF-32). 64 Allocate a malloced memory block for the result. 65 Return value: the freshly allocated resulting NUL-terminated string if 66 successful, otherwise NULL and errno set. */ 67 extern char * str_iconv (const char *src, 68 const char *from_codeset, const char *to_codeset) 69 _GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE; 70 71 72 #ifdef __cplusplus 73 } 74 #endif 75 76 77 #endif /* _STRICONV_H */