charset.c
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:3k
源码类别:
Windows CE
开发平台:
C/C++
- /* plugin_common - Routines common to several plugins
- * Copyright (C) 2002,2003,2004,2005 Josh Coalson
- *
- * Only slightly modified charset.c from:
- * EasyTAG - Tag editor for MP3 and OGG files
- * Copyright (C) 1999-2001 H鍁ard Kv錶en <havardk@xmms.org>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <errno.h>
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
- #ifdef HAVE_ICONV
- #include <iconv.h>
- #endif
- #ifdef HAVE_LANGINFO_CODESET
- #include <langinfo.h>
- #endif
- #include "charset.h"
- /*************
- * Functions *
- *************/
- char* FLAC_plugin__charset_get_current (void)
- {
- char *charset = getenv("CHARSET");
- #ifdef HAVE_LANGINFO_CODESET
- if (!charset)
- charset = nl_langinfo(CODESET);
- #endif
- if (!charset)
- charset = "ISO-8859-1";
- return charset;
- }
- #ifdef HAVE_ICONV
- char* FLAC_plugin__charset_convert_string (const char *string, char *from, char *to)
- {
- size_t outleft, outsize, length;
- iconv_t cd;
- char *out, *outptr;
- const char *input = string;
- if (!string)
- return NULL;
- length = strlen(string);
- if ((cd = iconv_open(to, from)) == (iconv_t)-1)
- {
- #ifdef DEBUG
- fprintf(stderr, "convert_string(): Conversion not supported. Charsets: %s -> %s", from, to);
- #endif
- return strdup(string);
- }
- /* Due to a GLIBC bug, round outbuf_size up to a multiple of 4 */
- /* + 1 for nul in case len == 1 */
- outsize = ((length + 3) & ~3) + 1;
- out = (char*)malloc(outsize);
- outleft = outsize - 1;
- outptr = out;
- retry:
- if (iconv(cd, (char**)&input, &length, &outptr, &outleft) == -1)
- {
- int used;
- switch (errno)
- {
- case E2BIG:
- used = outptr - out;
- outsize = (outsize - 1) * 2 + 1;
- out = realloc(out, outsize);
- outptr = out + used;
- outleft = outsize - 1 - used;
- goto retry;
- case EINVAL:
- break;
- case EILSEQ:
- /* Invalid sequence, try to get the rest of the string */
- input++;
- length = strlen(input);
- goto retry;
- default:
- #ifdef DEBUG
- fprintf(stderr, "convert_string(): Conversion failed. Inputstring: %s; Error: %s", string, strerror(errno));
- #endif
- break;
- }
- }
- *outptr = ' ';
- iconv_close(cd);
- return out;
- }
- #else
- char* FLAC_plugin__charset_convert_string (const char *string, char *from, char *to)
- {
- (void)from, (void)to;
- if (!string)
- return NULL;
- return strdup(string);
- }
- #endif
- #ifdef HAVE_ICONV
- int FLAC_plugin__charset_test_conversion (char *from, char *to)
- {
- iconv_t cd;
- if ((cd=iconv_open(to,from)) == (iconv_t)-1)
- {
- /* Conversion not supported */
- return 0;
- }
- iconv_close(cd);
- return 1;
- }
- #else
- int FLAC_plugin__charset_test_conversion (char *from, char *to)
- {
- (void)from, (void)to;
- return 1;
- }
- #endif