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authorKen Booth <ken@booths.org.uk>2013-07-02 01:06:32 +0100
committerPádraig Brady <P@draigBrady.com>2013-07-25 16:45:02 +0100
commit2bdb74ec1a453f6c6084d042e573de436ec205f3 (patch)
tree08f8c9fdc929321f414b8e1355643e13a78271ea /src/copy.c
parent68e5e8886170a3c2af88f830f2ac36100a9a610b (diff)
downloadcoreutils-2bdb74ec1a453f6c6084d042e573de436ec205f3.tar.xz
mv: replace empty directories in cross file system move
src/copy.c (copy_internal): Use rmdir() rather than unlink() when the source is a directory, so that empty directories are replaced in the destination as per POSIX. * tests/mv/part-rename.sh: Augment with various combinations. * NEWS: Mention the bug fix. Fixes http://bugs.gnu.org/14763
Diffstat (limited to 'src/copy.c')
-rw-r--r--src/copy.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/copy.c b/src/copy.c
index c1c82730d..f0cebb1b1 100644
--- a/src/copy.c
+++ b/src/copy.c
@@ -2172,8 +2172,12 @@ copy_internal (char const *src_name, char const *dst_name,
/* The rename attempt has failed. Remove any existing destination
file so that a cross-device 'mv' acts as if it were really using
- the rename syscall. */
- if (unlink (dst_name) != 0 && errno != ENOENT)
+ the rename syscall. Note both src and dst must both be directories
+ or not, and this is enforced above. Therefore we check the src_mode
+ and operate on dst_name here as a tighter constraint and also because
+ src_mode is readily available here. */
+ if ((S_ISDIR (src_mode) ? rmdir (dst_name) : unlink (dst_name)) != 0
+ && errno != ENOENT)
{
error (0, errno,
_("inter-device move failed: %s to %s; unable to remove target"),