minimal plan9port to cross-build Jehanne

lib/lib9/fmt/vfprint.c

@@ -0,0 +1,21 @@
+/* Copyright (c) 2002-2006 Lucent Technologies; see LICENSE */
+#include <stdarg.h>
+#include "plan9.h"
+#include "fmt.h"
+#include "fmtdef.h"
+
+int
+vfprint(int fd, char *fmt, va_list args)
+{
+	Fmt f;
+	char buf[256];
+	int n;
+
+	fmtfdinit(&f, fd, buf, sizeof(buf));
+	VA_COPY(f.args,args);
+	n = dofmt(&f, fmt);
+	VA_END(f.args);
+	if(n > 0 && __fmtFdFlush(&f) == 0)
+		return -1;
+	return n;
+}