Added vprintf etc

lang/cem/libcc/stdio/vsprintf.c

@@ -0,0 +1,24 @@
+/* $Header$ */
+
+#include	<stdio.h>
+#include	<varargs.h>
+
+char *
+vsprintf(s, format, arg)
+	char *s;
+	char *format;
+	va_list arg;
+{
+	FILE tmp_stream;
+
+	tmp_stream._fd     = -1;
+	tmp_stream._flags  = IO_WRITEMODE + IO_UNBUFF;
+	tmp_stream._buf    = (unsigned char *) s;
+	tmp_stream._ptr    = (unsigned char *) s;
+	tmp_stream._count  = 32767;
+
+	_doprnt(format, arg, &tmp_stream);
+	putc('\0',&tmp_stream);
+
+	return s;
+}