1 files changed, 62 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libstdio/fflush.c b/mdk-stage1/dietlibc/libstdio/fflush.c
new file mode 100644
index 000000000..7078e04f4
--- /dev/null
+++ b/mdk-stage1/dietlibc/libstdio/fflush.c
@@ -0,0 +1,62 @@
+#include "dietstdio.h"
+#include <unistd.h>
+#include <stdlib.h>
+#include "dietwarning.h"
+
+FILE *__stdio_root;
+
+#ifdef WANT_BUFFERED_STDIO
+int __stdio_atexit=0;
+
+void __stdio_flushall() {
+  fflush(0);
+}
+
+extern int __fflush_stdin();
+extern int __fflush_stdout();
+extern int __fflush_stderr();
+
+int fflush(FILE *stream) {
+  if (stream==0) {
+    int res;
+    FILE *f;
+    __fflush_stdin();
+    __fflush_stdout();
+    __fflush_stderr();
+    for (res=0, f=__stdio_root; f; f=f->next)
+      if (fflush(f))
+	res=-1;
+    return res;
+  }
+  if (stream->flags&BUFINPUT) {
+    register int tmp;
+    if ((tmp=stream->bm-stream->bs)) lseek(stream->fd,tmp,SEEK_CUR);
+  } else
+    if (stream->bm && write(stream->fd,stream->buf,stream->bm)!=stream->bm) {
+      stream->flags|=ERRORINDICATOR;
+      return -1;
+    }
+  stream->bm=0;
+  return 0;
+}
+
+int __fflush4(FILE *stream,int next) {
+  if (!__stdio_atexit) {
+    __stdio_atexit=1;
+    atexit(__stdio_flushall);
+  }
+  if ((stream->flags&BUFINPUT)!=next) {
+    int res=fflush(stream);
+    stream->flags=(stream->flags&~BUFINPUT)|next;
+    return res;
+  }
+  return 0;
+}
+
+#else
+int fflush(FILE *stream) {
+  return 0;
+}
+#endif
+
+link_warning("fflush","warning: your code uses stdio (several kilobytes of bloat).")