[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/build/uClibc/libc/stdio/freopen.c b/ap/build/uClibc/libc/stdio/freopen.c
new file mode 100644
index 0000000..f48a43b
--- /dev/null
+++ b/ap/build/uClibc/libc/stdio/freopen.c
@@ -0,0 +1,75 @@
+/* Copyright (C) 2004 Manuel Novoa III <mjn3@codepoet.org>
+ *
+ * GNU Library General Public License (LGPL) version 2 or later.
+ *
+ * Dedicated to Toni. See uClibc/DEDICATION.mjn3 for details.
+ */
+
+#include "_stdio.h"
+
+
+#ifndef __DO_LARGEFILE
+# define FILEDES_ARG (-1)
+#endif
+
+FILE *freopen(const char * __restrict filename, const char * __restrict mode,
+ register FILE * __restrict stream)
+{
+ /*
+ * ANSI/ISO allow (implementation-defined) change of mode for an
+ * existing file if filename is NULL. It doesn't look like Linux
+ * supports this, so we don't here.
+ *
+ * NOTE: Whether or not the stream is free'd on failure is unclear
+ * w.r.t. ANSI/ISO. This implementation chooses to NOT free
+ * the stream and associated buffer if they were dynamically
+ * allocated.
+ * NOTE: Previous versions of uClibc did free dynamic storage.
+ *
+ * TODO: Apparently linux allows setting append mode. Implement?
+ */
+ unsigned short dynmode;
+ register FILE *fp;
+ __STDIO_AUTO_THREADLOCK_VAR;
+
+ __STDIO_AUTO_THREADLOCK(stream);
+
+ __STDIO_STREAM_VALIDATE(stream);
+
+ __STDIO_OPENLIST_INC_USE; /* Do not remove the file from the list. */
+
+ /* First, flush and close, but don't deallocate, the stream. */
+ /* This also removes the stream for the open file list. */
+ dynmode = (stream->__modeflags & (__FLAG_FREEBUF|__FLAG_FREEFILE));
+
+ stream->__modeflags &= ~(__FLAG_FREEBUF|__FLAG_FREEFILE);
+
+ /* Only call fclose on the stream if it is not already closed. */
+ if ((stream->__modeflags & (__FLAG_READONLY|__FLAG_WRITEONLY))
+ != (__FLAG_READONLY|__FLAG_WRITEONLY)
+ ) {
+ fclose(stream); /* Failures are ignored. */
+ /* NOTE: fclose always does __STDIO_OPENLIST_INC_DEL_CNT. But we don't
+ * want to remove this FILE from the open list, even if the freopen fails.
+ * Consider the case of a failed freopen() on stdin. You probably still
+ * want to be able to call freopen() again. Similarly for other "malloc'd"
+ * streams. */
+ __STDIO_OPENLIST_DEC_DEL_CNT;
+ }
+
+ fp = _stdio_fopen(((intptr_t) filename), mode, stream, FILEDES_ARG);
+ if (!fp) {
+ /* Don't remove stream from the open file list and (potentially) free it.
+ * See _stdio_openlist_dec_use() in fflush.c. */
+ stream->__modeflags = __FLAG_READONLY|__FLAG_WRITEONLY|__FLAG_FAILED_FREOPEN;
+ }
+
+ /* Reset the allocation flags. */
+ stream->__modeflags |= dynmode;
+
+ __STDIO_OPENLIST_DEC_USE;
+
+ __STDIO_AUTO_THREADUNLOCK(stream);
+
+ return fp;
+}