1 files changed, 121 insertions, 0 deletions
diff --git a/src/util.c b/src/util.c
new file mode 100644
index 0000000..55953b8
--- /dev/null
+++ b/src/util.c
@@ -0,0 +1,121 @@
+/* LibSLV2
+ * Copyright (C) 2006 Dave Robillard <drobilla@connect.carleton.ca>
+ *  
+ * This library 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 library 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.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#define _XOPEN_SOURCE 500
+
+#include <util.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdarg.h>
+
+
+void
+ustrappend(uchar** dst, const uchar* suffix)
+{
+	assert(dst);
+	assert(*dst);
+	assert(suffix);
+
+	const size_t new_length = strlen((char*)*dst) + strlen((char*)suffix) + 1;
+	*dst = realloc(*dst, (new_length * sizeof(char)));
+	assert(dst);
+	strcat((char*)*dst, (char*)suffix);
+}
+
+
+uchar*
+ustrdup(const uchar* src)
+{
+	assert(src);
+	return (uchar*)strdup((char*)src);
+}
+
+
+uchar*
+ustrjoin(const uchar* first, ...)
+{
+	// FIXME: this is horribly, awfully, disgracefully slow
+	
+	va_list args_list;
+	va_start(args_list, first);
+	
+	va_list args_copy;
+	va_copy(args_copy, args_list);
+	
+	uchar* result = vstrjoin(first, args_copy);
+	
+	//va_end(args_copy);
+	va_end(args_list);
+	
+	return result;
+
+	/*
+	va_list args_list;
+	uchar*  arg = NULL;
+	uchar*  result = ustrdup(first);
+	
+	va_start(args_list, first);
+	
+	while ((arg = va_arg(args_list, uchar*)) != (uchar*)0)
+		ustrappend(&result, arg);
+	
+	va_end(args_list);
+
+	return result;*/
+}
+
+
+uchar*
+vstrjoin(const uchar* first, va_list args_list)
+{
+	// FIXME: this is horribly, awfully, disgracefully slow
+	
+	uchar* arg = NULL;
+	uchar* result = ustrdup(first);
+	
+	while ((arg = va_arg(args_list, uchar*)) != NULL)
+		ustrappend(&result, arg);
+	
+	va_end(args_list);
+
+	return result;
+}
+
+
+
+/** Convert a URL to a local filesystem path (ie by chopping off the
+ * leading "file://".
+ *
+ * Returns NULL if URL is not a valid URL on the local filesystem.
+ * Result is simply a pointer in to \a url and must not be free()'d.
+ */
+const char*
+url2path(const uchar* const url)
+{
+	/*assert(strlen((char*)url) > 8);
+	char* result = calloc(strlen((char*)url)-7+1, sizeof(char));
+	strcpy(result, (char*)url+7);
+	return result;*/
+	if (!strncmp((char*)url, "file://", 7))
+		return (char*)url + 7;
+	else
+		return NULL;
+}
+
+