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Cygwin: fix file-related functions on unix sockets 

* Fix an incorrect condition to recognize AF_LOCAL sockets in
  file-related functions (fchmod, fchown, fstat, fsttavfs, facl, link).

* Return successfully when called on unnamed or abstract AF_LOCAL sockets,
  except link, just as on Linux.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen 2018-02-14 10:20:42 +01:00
parent 09d32b7480
commit 1188d308bf
1 changed files with 33 additions and 6 deletions
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39
winsup/cygwin/fhandler_socket.cc
View File

@ -39,6 +39,7 @@
#include "wininfo.h"
#include <unistd.h>
#include <sys/param.h>
#include <sys/statvfs.h>
#include <cygwin/acl.h>
#include "cygtls.h"
#include <sys/un.h>
@ -947,8 +948,21 @@ int __reg2
fhandler_socket::fstat (struct stat *buf)
{
int res;
if (get_device () == FH_UNIX)
if (get_addr_family () == AF_LOCAL)
{
if (!get_sun_path () || get_sun_path ()[0] == '\0')
{
memset (buf, 0, sizeof *buf);
buf->st_dev = FH_UNIX;
buf->st_ino = get_plain_ino ();
buf->st_mode = S_IFSOCK | S_IRWXU | S_IRWXG | S_IRWXO;
buf->st_nlink = 1;
buf->st_uid = myself->uid;
buf->st_gid = myself->gid;
time_as_timestruc_t (&buf->st_ctim);
buf->st_blksize = 4096;
return 0;
}
res = fhandler_base::fstat_fs (buf);
if (!res)
{
@ -975,8 +989,15 @@ fhandler_socket::fstat (struct stat *buf)
int __reg2
fhandler_socket::fstatvfs (struct statvfs *sfs)
{
if (get_device () == FH_UNIX)
if (get_addr_family () == AF_LOCAL)
{
if (!get_sun_path () || get_sun_path ()[0] == '\0')
{
memset (sfs, 0, sizeof (*sfs));
sfs->f_bsize = sfs->f_frsize = 4096;
sfs->f_namemax = NAME_MAX;
return 0;
}
fhandler_disk_file fh (pc);
fh.get_device () = FH_FS;
return fh.fstatvfs (sfs);
@ -988,8 +1009,10 @@ fhandler_socket::fstatvfs (struct statvfs *sfs)
int
fhandler_socket::fchmod (mode_t mode)
{
if (get_device () == FH_UNIX)
if (get_addr_family () == AF_LOCAL)
{
if (!get_sun_path () || get_sun_path ()[0] == '\0')
return 0;
fhandler_disk_file fh (pc);
fh.get_device () = FH_FS;
int ret = fh.fchmod (S_IFSOCK | adjust_socket_file_mode (mode));
@ -1002,8 +1025,10 @@ fhandler_socket::fchmod (mode_t mode)
int
fhandler_socket::fchown (uid_t uid, gid_t gid)
{
if (get_device () == FH_UNIX)
if (get_addr_family () == AF_LOCAL)
{
if (!get_sun_path () || get_sun_path ()[0] == '\0')
return 0;
fhandler_disk_file fh (pc);
return fh.fchown (uid, gid);
}
@ -1014,8 +1039,10 @@ fhandler_socket::fchown (uid_t uid, gid_t gid)
int
fhandler_socket::facl (int cmd, int nentries, aclent_t *aclbufp)
{
if (get_device () == FH_UNIX)
if (get_addr_family () == AF_LOCAL)
{
if (!get_sun_path () || get_sun_path ()[0] == '\0')
return fhandler_base::facl (cmd, nentries, aclbufp);
fhandler_disk_file fh (pc);
return fh.facl (cmd, nentries, aclbufp);
}
@ -1026,7 +1053,7 @@ fhandler_socket::facl (int cmd, int nentries, aclent_t *aclbufp)
int
fhandler_socket::link (const char *newpath)
{
if (get_device () == FH_UNIX)
if (get_addr_family () == AF_LOCAL)
{
fhandler_disk_file fh (pc);
return fh.link (newpath);