musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/stdio/ext.c b/src/stdio/ext.c
new file mode 100644
index 00000000..d5a403b6
--- /dev/null
+++ b/src/stdio/ext.c

@@ -0,0 +1,57 @@

+#define _GNU_SOURCE

+#include "stdio_impl.h"

+#include <stdio_ext.h>

+

+void _flushlbf(void)

+{

+ fflush(0);

+}

+

+int __fsetlocking(FILE *f, int type)

+{

+ return 0;

+}

+

+int __fwriting(FILE *f)

+{

+ return f->wend > f->wpos;

+}

+

+int __freading(FILE *f)

+{

+ return f->rend > f->rpos;

+}

+

+int __freadable(FILE *f)

+{

+ return !(f->flags & F_NORD);

+}

+

+int __fwritable(FILE *f)

+{

+ return !(f->flags & F_NOWR);

+}

+

+int __flbf(FILE *f)

+{

+ return f->lbf >= 0;

+}

+

+size_t __fbufsize(FILE *f)

+{

+ return f->buf_size;

+}

+

+size_t __fpending(FILE *f)

+{

+ return f->wend ? f->wpos - f->wbase : 0;

+}

+

+int __fpurge(FILE *f)

+{

+ f->wpos = f->wbase = f->wend = 0;

+ f->rpos = f->rend = 0;

+ return 0;

+}

+

+weak_alias(__fpurge, fpurge);