import from SF CVS

git-svn-id: https://svn.musicpd.org/mpd/trunk@1 09075e82-0dd4-0310-85a5-a0d7c8717e4f
2004-02-23 23:41:20 +00:00
commit d35747a40c
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+/* the Music Player Daemon (MPD)
+ * (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
+ * This project's homepage is: http://www.musicpd.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 "charConv.h"
+
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#ifdef HAVE_ICONV
+#include <iconv.h>
+iconv_t char_conv_iconv;
+char * char_conv_to = NULL;
+char * char_conv_from = NULL;
+#endif
+
+#define BUFFER_SIZE	1024
+
+int setCharSetConversion(char * to, char * from) {
+#ifdef HAVE_ICONV
+	if(char_conv_to && strcmp(to,char_conv_to)==0 &&
+			char_conv_from && strcmp(from,char_conv_from)==0)
+	{ 
+		return 0;
+	}
+
+	closeCharSetConversion();
+
+	if((char_conv_iconv = iconv_open(to,from))==(iconv_t)(-1)) return -1;
+
+	char_conv_to = strdup(to);
+	char_conv_from = strdup(from);
+
+	return 0;
+#endif
+	return -1;
+}
+
+char * convStrDup(char * string) {
+#ifdef HAVE_ICONV
+	char buffer[BUFFER_SIZE];
+	size_t inleft = strlen(string);
+	char * ret;
+	size_t outleft;
+	int retlen = 0;
+	size_t err;
+	char * bufferPtr;
+
+	if(!char_conv_to) return NULL;
+
+	ret = strdup("");
+
+	while(inleft) {
+		bufferPtr = buffer;
+		outleft = BUFFER_SIZE;
+		err = iconv(char_conv_iconv,&string,&inleft,&bufferPtr,
+					&outleft);
+		if(outleft==BUFFER_SIZE || (err<0 && errno!=E2BIG)) {
+			free(ret);
+			return NULL;
+		}
+
+		ret = realloc(ret,retlen+BUFFER_SIZE-outleft+1);
+		strncpy(&(ret[retlen]),buffer,BUFFER_SIZE-outleft);
+		retlen+=BUFFER_SIZE-outleft;
+		ret[retlen] = '\0';
+	}
+
+	return ret;
+#endif
+	return NULL;
+}
+
+void closeCharSetConversion() {
+#ifdef HAVE_ICONV
+	if(char_conv_to) {
+		iconv_close(char_conv_iconv);
+		free(char_conv_to);
+		free(char_conv_from);
+		char_conv_to = NULL;
+		char_conv_from = NULL;
+	}
+#endif
+}