From 32667ecf32746f61fbe834046bebc3f04a690d1f Mon Sep 17 00:00:00 2001
From: robertabcd <robertabcd@63ad8ddf-47c3-0310-b6dd-a9e9d9715204>
Date: Wed, 30 Jan 2013 10:04:27 +0000
Subject: Rename should ask /bin/mv for help only when moving across
 mountpoints.

git-svn-id: http://opensvn.csie.org/pttbbs/trunk@5783 63ad8ddf-47c3-0310-b6dd-a9e9d9715204
---
 pttbbs/common/sys/file.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pttbbs/common/sys/file.c b/pttbbs/common/sys/file.c
index a59c5123..c067779a 100644
--- a/pttbbs/common/sys/file.c
+++ b/pttbbs/common/sys/file.c
@@ -199,6 +199,7 @@ int copy_file(const char *src, const char *dst)
 }
 
 #include <signal.h>
+#include <errno.h>
 int
 Rename(const char *src, const char *dst)
 {
@@ -209,6 +210,9 @@ Rename(const char *src, const char *dst)
     if (rename(src, dst) == 0)
 	return 0;
 
+    if (errno != EXDEV)
+        return -1;
+
     // prevent malicious shell escapes
     if (strchr(src, ';') || strchr(dst, ';'))
 	return -1;
-- 
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