From ceca51fdde629d690b6a894bc55db356e4cdbbfa Mon Sep 17 00:00:00 2001 From: Ken Brown Date: Sat, 20 Jul 2019 17:55:12 -0400 Subject: [PATCH] Cygwin: socket files are not lnk special files Change path_conv::is_lnk_special() so that it returns false on socket files. is_lnk_special() is called by rename2() in order to deal with special files (FIFOs and symlinks, for example) whose Win32 names usually have a ".lnk" suffix. Socket files do not fall into this category, and this change prevents ".lnk" from being appended erroneously when such files are renamed. Remove a now redundant !pc.issocket() from fhandler_disk_file::link(). --- winsup/cygwin/fhandler_disk_file.cc | 4 ++-- winsup/cygwin/path.h | 4 +++- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/winsup/cygwin/fhandler_disk_file.cc b/winsup/cygwin/fhandler_disk_file.cc index 84d86456b..32381a0b0 100644 --- a/winsup/cygwin/fhandler_disk_file.cc +++ b/winsup/cygwin/fhandler_disk_file.cc @@ -1190,10 +1190,10 @@ fhandler_disk_file::link (const char *newpath) char new_buf[nlen + 5]; if (!newpc.error) { - /* If the original file is a lnk special file (except for sockets), + /* If the original file is a lnk special file, and if the original file has a .lnk suffix, add one to the hardlink as well. */ - if (pc.is_lnk_special () && !pc.issocket () + if (pc.is_lnk_special () && RtlEqualUnicodePathSuffix (pc.get_nt_native_path (), &ro_u_lnk, TRUE)) { diff --git a/winsup/cygwin/path.h b/winsup/cygwin/path.h index 95a9dec6f..e76157bd4 100644 --- a/winsup/cygwin/path.h +++ b/winsup/cygwin/path.h @@ -184,7 +184,9 @@ class path_conv int isspecial () const {return dev.not_device (FH_FS);} int iscygdrive () const {return dev.is_device (FH_CYGDRIVE);} int is_fs_special () const {return dev.is_fs_special ();} - int is_lnk_special () const {return (isdevice () && is_fs_special ()) + + int is_lnk_special () const {return (isdevice () && is_fs_special () + && !issocket ()) || isfifo () || is_lnk_symlink ();} #ifdef __WITH_AF_UNIX int issocket () const {return dev.is_device (FH_LOCAL)