Added iconv support

git-svn-id: https://svn.musicpd.org/ncmpc/trunk@308 09075e82-0dd4-0310-85a5-a0d7c8717e4f

1 files changed, 110 insertions, 14 deletions

diff --git a/support.c b/support.c
index ce67dc81e..d2dc9759c 100644
--- a/support.c
+++ b/support.c
@@ -1,16 +1,35 @@
-/*
- * $Id: support.c,v 1.2 2004/03/17 23:17:09 kalle Exp $
- *
- */
-
+#include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <glib.h>
 
 #include "config.h"
+
+#ifdef HAVE_LOCALE_H
+#ifdef HAVE_LANGINFO_H
+#ifdef HAVE_ICONV
+#include <locale.h>
+#include <langinfo.h>
+#include <iconv.h>
+#define ENABLE_CHARACTER_SET_CONVERSION
+#endif
+#endif
+#endif
+
 #include "support.h"
 
+#define BUFSIZE 1024
+
+#ifdef ENABLE_CHARACTER_SET_CONVERSION
+static char *locale = NULL;
+static char *charset = NULL;
+iconv_t iconv_from_uft8 = (iconv_t)(-1);
+iconv_t iconv_to_uft8 = (iconv_t)(-1);
+#endif
+
+
+
 #ifndef HAVE_LIBGEN_H
 
 char *
@@ -48,17 +67,94 @@ basename(char *path)
 
 #endif /* HAVE_LIBGEN_H */
 
-char *
-utf8(char *str)
+
+int
+charset_init(void)
 {
-  static const gchar *charset = NULL;
-  static gboolean locale_is_utf8 = FALSE;
+#ifdef ENABLE_CHARACTER_SET_CONVERSION
+  /* get current locale */
+  if( (locale=setlocale(LC_CTYPE,"")) == NULL )
+    {
+      fprintf(stderr,"setlocale() - failed!\n");
+      return -1;
+    }
+
+  /* get charset */
+  if( (charset=nl_langinfo(CODESET)) == NULL )
+    {
+      fprintf(stderr,"nl_langinfo() - failed!\n");
+      return -1;
+    }
+
+  /* allocate descriptor for character set conversion */
+  iconv_from_uft8 = iconv_open(charset, "UTF-8");
+  if( iconv_from_uft8 == (iconv_t)(-1) )
+    {
+      perror("iconv_open");
+      return -1;
+    }
+#endif
+
+  return 0;
+}
 
-  if( !charset )
-    locale_is_utf8 = g_get_charset(&charset);
+int
+charset_close(void)
+{
+#ifdef ENABLE_CHARACTER_SET_CONVERSION
+  if( iconv_from_uft8 == (iconv_t)(-1) )
+    {
+      iconv_close(iconv_from_uft8);
+      iconv_from_uft8 = (iconv_t)(-1);
+    }
+  if( iconv_to_uft8 == (iconv_t)(-1) )
+    {
+      iconv_close(iconv_to_uft8);
+      iconv_to_uft8 = (iconv_t)(-1);
+    }
+#endif
+  return 0;
+}
 
-  if( locale_is_utf8 )
-    return str;
 
-  return g_locale_from_utf8(str, -1, NULL, NULL, NULL);
+
+char *
+utf8_to_locale(char *str)
+{
+#ifdef ENABLE_CHARACTER_SET_CONVERSION
+  size_t inleft;
+  size_t retlen;
+  char *ret;
+
+  if( iconv_from_uft8 == (iconv_t)(-1) )
+    return strdup(str);
+
+  ret = NULL;
+  retlen = 0;
+  inleft = strlen(str);
+  while( inleft>0 )
+    {
+      char buf[BUFSIZE];
+      size_t outleft = BUFSIZE;
+      char *bufp = buf;
+
+      if( iconv(iconv_from_uft8, &str, &inleft, &bufp, &outleft) <0 )
+	{
+	  perror("iconv");
+	  free(ret);
+	  return NULL;
+	}
+      ret = realloc(ret, BUFSIZE-outleft+1);
+      memcpy(ret+retlen, buf, BUFSIZE-outleft);
+      retlen += BUFSIZE-outleft;
+      ret[retlen] = '\0';
+    }
+  return ret;
+
+#else
+  return strdup(str);
+#endif
 }
+
+
+