Cygwin: get_posix_access: Make mode_t parameter mandatory

Avoid the mistake fixed in the preceeding commit by passing
the mode_t argument by reference.  This also affects a couple
other functions calling get_posix_access in turn.

Fixes: bc444e5aa4ca ("Reapply POSIX ACL changes.")
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

diff --git a/winsup/cygwin/fhandler/disk_file.cc b/winsup/cygwin/fhandler/disk_file.cc
index 15dc24ffef6245c88a7e4464cb2f76ff696cd8f3..8528f7f8d4de3e396067eb87b89402f194a84b85 100644 (file)
--- a/winsup/cygwin/fhandler/disk_file.cc
+++ b/winsup/cygwin/fhandler/disk_file.cc
@@ -464,16 +464,16 @@ fhandler_base::fstat_helper (struct stat *buf)
   else if (pc.issymlink ())
     {
       buf->st_size = pc.get_symlink_length ();
+      get_file_attribute (h, pc, buf->st_mode,
+                         &buf->st_uid, &buf->st_gid);
       /* symlinks are everything for everyone! */
       buf->st_mode = S_IFLNK | S_IRWXU | S_IRWXG | S_IRWXO;
-      get_file_attribute (h, pc, NULL,
-                         &buf->st_uid, &buf->st_gid);
       goto done;
     }
   else if (pc.issocket ())
     buf->st_mode = S_IFSOCK;
 
-  if (!get_file_attribute (h, pc, &buf->st_mode, &buf->st_uid, &buf->st_gid))
+  if (!get_file_attribute (h, pc, buf->st_mode, &buf->st_uid, &buf->st_gid))
     {
       /* If read-only attribute is set, modify ntsec return value */
       if (::has_attribute (attributes, FILE_ATTRIBUTE_READONLY)
@@ -769,7 +769,7 @@ fhandler_disk_file::fchmod (mode_t mode)
       if (!get_file_sd (get_handle (), pc, sd, false))
        {
          aclp = (aclent_t *) tp.c_get ();
-         if ((nentries = get_posix_access (sd, &attr, &uid, &gid,
+         if ((nentries = get_posix_access (sd, attr, &uid, &gid,
                                            aclp, MAX_ACL_ENTRIES,
                                            &standard_acl)) >= 0)
            {
@@ -879,7 +879,7 @@ fhandler_disk_file::fchown (uid_t uid, gid_t gid)
     goto out;
 
   aclp = (aclent_t *) tp.c_get ();
-  if ((nentries = get_posix_access (sd, &attr, &old_uid, &old_gid,
+  if ((nentries = get_posix_access (sd, attr, &old_uid, &old_gid,
                                    aclp, MAX_ACL_ENTRIES)) < 0)
     goto out;
 

diff --git a/winsup/cygwin/fhandler/mqueue.cc b/winsup/cygwin/fhandler/mqueue.cc
index 6b94bca855728867dba91dd6c563b67056fbb254..2bf2cb0ea74bb1fb5177a27ac15abf2f1dfcf47e 100644 (file)
--- a/winsup/cygwin/fhandler/mqueue.cc
+++ b/winsup/cygwin/fhandler/mqueue.cc
@@ -251,7 +251,7 @@ fhandler_mqueue::mqinfo_open (int flags)
       __seterrno_from_nt_status (status);
       return NULL;
     }
-  if (get_file_attribute (get_handle (), pc, &mode, NULL, NULL))
+  if (get_file_attribute (get_handle (), pc, mode, NULL, NULL))
     mode = STD_RBITS | STD_WBITS;
 
   return _mqinfo (fsi.EndOfFile.QuadPart, mode, flags, true);

diff --git a/winsup/cygwin/fhandler/procsys.cc b/winsup/cygwin/fhandler/procsys.cc
index cd1d35984d4a73ae41fa40fd41d8b0db3b4be43a..4fa00481ad45f93f9a6350d3667499a9ef5e007e 100644 (file)
--- a/winsup/cygwin/fhandler/procsys.cc
+++ b/winsup/cygwin/fhandler/procsys.cc
@@ -86,7 +86,7 @@ fhandler_procsys::exists (struct stat *buf)
     {
       /* If requested, check permissions. */
       if (buf)
-       get_object_attribute (h, &buf->st_uid, &buf->st_gid, &buf->st_mode);
+       get_object_attribute (h, &buf->st_uid, &buf->st_gid, buf->st_mode);
       NtClose (h);
       return virt_symlink;
     }
@@ -99,7 +99,7 @@ fhandler_procsys::exists (struct stat *buf)
     {
       /* If requested, check permissions. */
       if (buf)
-       get_object_attribute (h, &buf->st_uid, &buf->st_gid, &buf->st_mode);
+       get_object_attribute (h, &buf->st_uid, &buf->st_gid, buf->st_mode);
       NtClose (h);
       return virt_directory;
     }
@@ -164,7 +164,7 @@ fhandler_procsys::exists (struct stat *buf)
       /* If requested, check permissions.  If this is a parent handle from
         the above desperate parent check, skip. */
       if (buf && !desperate_parent_check)
-       get_object_attribute (h, &buf->st_uid, &buf->st_gid, &buf->st_mode);
+       get_object_attribute (h, &buf->st_uid, &buf->st_gid, buf->st_mode);
 
       /* Check for the device type. */
       status = NtQueryVolumeInformationFile (h, &io, &ffdi, sizeof ffdi,

diff --git a/winsup/cygwin/fhandler/pty.cc b/winsup/cygwin/fhandler/pty.cc
index 7187095804b8ac7e912677b4b0ada56f80391360..0dac80a163f9bdb1528c089d748f20edd6937aa1 100644 (file)
--- a/winsup/cygwin/fhandler/pty.cc
+++ b/winsup/cygwin/fhandler/pty.cc
@@ -1793,7 +1793,7 @@ fhandler_pty_slave::fstat (struct stat *st)
   st->st_mode = S_IFCHR;
   if (!input_available_event
       || get_object_attribute (input_available_event, &st->st_uid, &st->st_gid,
-                              &st->st_mode))
+                              st->st_mode))
     {
       /* If we can't access the ACL, or if the tty doesn't actually exist,
         then fake uid and gid to strict, system-like values. */
@@ -1839,7 +1839,7 @@ fhandler_pty_slave::facl (int cmd, int nentries, aclent_t *aclbufp)
        if (!input_available_event
            || get_object_sd (input_available_event, sd))
          {
-           res = get_posix_access (NULL, &attr, NULL, NULL, aclbufp, nentries);
+           res = get_posix_access (NULL, attr, NULL, NULL, aclbufp, nentries);
            if (aclbufp && res == MIN_ACL_ENTRIES)
              {
                aclbufp[0].a_perm = S_IROTH | S_IWOTH;
@@ -1849,9 +1849,9 @@ fhandler_pty_slave::facl (int cmd, int nentries, aclent_t *aclbufp)
            break;
          }
        if (cmd == GETACL)
-         res = get_posix_access (sd, &attr, NULL, NULL, aclbufp, nentries);
+         res = get_posix_access (sd, attr, NULL, NULL, aclbufp, nentries);
        else
-         res = get_posix_access (sd, &attr, NULL, NULL, NULL, 0);
+         res = get_posix_access (sd, attr, NULL, NULL, NULL, 0);
        break;
       default:
        set_errno (EINVAL);
@@ -1935,7 +1935,7 @@ fhandler_pty_slave::fchmod (mode_t mode)
     }
   sd.malloc (sizeof (SECURITY_DESCRIPTOR));
   RtlCreateSecurityDescriptor (sd, SECURITY_DESCRIPTOR_REVISION);
-  if (!get_object_attribute (input_available_event, &uid, &gid, &orig_mode)
+  if (!get_object_attribute (input_available_event, &uid, &gid, orig_mode)
       && !create_object_sd_from_attribute (uid, gid, S_IFCHR | mode, sd))
     ret = fch_set_sd (sd, false);
 errout:
@@ -1964,7 +1964,7 @@ fhandler_pty_slave::fchown (uid_t uid, gid_t gid)
     }
   sd.malloc (sizeof (SECURITY_DESCRIPTOR));
   RtlCreateSecurityDescriptor (sd, SECURITY_DESCRIPTOR_REVISION);
-  if (!get_object_attribute (input_available_event, &o_uid, &o_gid, &mode))
+  if (!get_object_attribute (input_available_event, &o_uid, &o_gid, mode))
     {
       if (uid == ILLEGAL_UID)
        uid = o_uid;

diff --git a/winsup/cygwin/fhandler/registry.cc b/winsup/cygwin/fhandler/registry.cc
index 2830c708aa4ce88154ef52dc727778ee087f2445..ac413af9bb56187cf7d43cfbe94f31908c63dc44 100644 (file)
--- a/winsup/cygwin/fhandler/registry.cc
+++ b/winsup/cygwin/fhandler/registry.cc
@@ -552,7 +552,7 @@ fhandler_registry::fstat (struct stat *buf)
                }
              uid_t uid;
              gid_t gid;
-             if (get_reg_attribute (hKey, &buf->st_mode, &uid, &gid) == 0)
+             if (get_reg_attribute (hKey, buf->st_mode, &uid, &gid) == 0)
                {
                  buf->st_uid = uid;
                  buf->st_gid = gid;

diff --git a/winsup/cygwin/local_includes/security.h b/winsup/cygwin/local_includes/security.h
index 41b4e275f0ccc637739a939580a5020975f1ed51..0316b753d40173c70ad9f9beb2842901d0d6572f 100644 (file)
--- a/winsup/cygwin/local_includes/security.h
+++ b/winsup/cygwin/local_includes/security.h
@@ -411,17 +411,17 @@ legal_sid_type (SID_NAME_USE type)
 
 class path_conv;
 /* File manipulation */
-int get_file_attribute (HANDLE, path_conv &, mode_t *,
+int get_file_attribute (HANDLE, path_conv &, mode_t &,
                                  uid_t *, gid_t *);
 int set_created_file_access (HANDLE, path_conv &, mode_t);
 int get_object_sd (HANDLE, security_descriptor &);
-int get_object_attribute (HANDLE, uid_t *, gid_t *, mode_t *);
+int get_object_attribute (HANDLE, uid_t *, gid_t *, mode_t &);
 int set_object_attribute (HANDLE, uid_t, gid_t, mode_t);
 int create_object_sd_from_attribute (uid_t, gid_t, mode_t,
                                            security_descriptor &);
 int set_object_sd (HANDLE, security_descriptor &, bool);
 
-int get_reg_attribute (HKEY hkey, mode_t *, uid_t *, gid_t *);
+int get_reg_attribute (HKEY hkey, mode_t &, uid_t *, gid_t *);
 LONG get_file_sd (HANDLE fh, path_conv &, security_descriptor &, bool);
 LONG set_file_sd (HANDLE fh, path_conv &, security_descriptor &, bool);
 bool add_access_allowed_ace (PACL, DWORD, PSID, size_t &, DWORD);
@@ -441,7 +441,7 @@ struct acl;
 int searchace (struct acl *, int, int, uid_t id = ILLEGAL_UID);
 PSECURITY_DESCRIPTOR set_posix_access (mode_t, uid_t, gid_t, struct acl *, int,
                                       security_descriptor &, bool);
-int get_posix_access (PSECURITY_DESCRIPTOR, mode_t *, uid_t *, gid_t *,
+int get_posix_access (PSECURITY_DESCRIPTOR, mode_t &, uid_t *, gid_t *,
                      struct acl *, int, bool * = NULL);
 int getacl (HANDLE, path_conv &, int, struct acl *);
 int setacl (HANDLE, path_conv &, int, struct acl *, bool &);

diff --git a/winsup/cygwin/sec/acl.cc b/winsup/cygwin/sec/acl.cc
index 5c23e22b600df4cff64375fd9cbd28ea11739b1d..2fd08ad62579af980aa0692eef6f98b0971e7f44 100644 (file)
--- a/winsup/cygwin/sec/acl.cc
+++ b/winsup/cygwin/sec/acl.cc
@@ -577,7 +577,7 @@ setacl (HANDLE handle, path_conv &pc, int nentries, aclent_t *aclbufp,
 
   if (get_file_sd (handle, pc, sd, false))
     return -1;
-  if (get_posix_access (sd, &attr, &uid, &gid, NULL, 0) < 0)
+  if (get_posix_access (sd, attr, &uid, &gid, NULL, 0) < 0)
     return -1;
   if (!set_posix_access (attr, uid, gid, aclbufp, nentries,
                         sd_ret, pc.fs_is_samba ()))
@@ -644,7 +644,7 @@ getace (aclent_t &acl, int type, int id, DWORD win_ace_mask,
    stock POSIX perms even if Administrators and SYSTEM is in the ACE. */
 int
 get_posix_access (PSECURITY_DESCRIPTOR psd,
-                 mode_t *attr_ret, uid_t *uid_ret, gid_t *gid_ret,
+                 mode_t &attr_ret, uid_t *uid_ret, gid_t *gid_ret,
                  aclent_t *aclbufp, int nentries, bool *std_acl)
 {
   tmp_pathbuf tp;
@@ -689,8 +689,7 @@ get_posix_access (PSECURITY_DESCRIPTOR psd,
      unreadable. */
   if (!psd)
     {
-      if (attr_ret)
-        *attr_ret &= S_IFMT;
+      attr_ret &= S_IFMT;
       if (uid_ret)
         *uid_ret = ACL_UNDEFINED_ID;
       if (gid_ret)
@@ -732,11 +731,8 @@ get_posix_access (PSECURITY_DESCRIPTOR psd,
   /* Set uidret, gidret, and initalize attributes. */
   uid = owner_sid.get_uid (&cldap);
   gid = group_sid.get_gid (&cldap);
-  if (attr_ret)
-    {
-      attr = *attr_ret & S_IFMT;
-      just_created = *attr_ret & S_JUSTCREATED;
-    }
+  attr = attr_ret & S_IFMT;
+  just_created = attr_ret & S_JUSTCREATED;
   /* Remember the fact that owner and group are the same account. */
   owner_eq_group = owner_sid == group_sid;
 
@@ -1174,8 +1170,7 @@ out:
     *uid_ret = uid;
   if (gid_ret)
     *gid_ret = gid;
-  if (attr_ret)
-    *attr_ret = attr;
+  attr_ret = attr;
   if (aclbufp)
     {
       if (pos > nentries)
@@ -1201,7 +1196,7 @@ getacl (HANDLE handle, path_conv &pc, int nentries, aclent_t *aclbufp)
 
   if (get_file_sd (handle, pc, sd, false))
     return -1;
-  int pos = get_posix_access (sd, &attr, NULL, NULL, aclbufp, nentries);
+  int pos = get_posix_access (sd, attr, NULL, NULL, aclbufp, nentries);
   syscall_printf ("%R = getacl(%S)", pos, pc.get_nt_native_path ());
   return pos;
 }

diff --git a/winsup/cygwin/sec/base.cc b/winsup/cygwin/sec/base.cc
index e84bc2aee7f11ce8474c1c28fab725be4eea0f0a..8b04b40b4943ea32b3dcfcb630d55e930bb68f0a 100644 (file)
--- a/winsup/cygwin/sec/base.cc
+++ b/winsup/cygwin/sec/base.cc
@@ -276,7 +276,7 @@ get_reg_sd (HANDLE handle, security_descriptor &sd_ret)
 }
 
 int
-get_reg_attribute (HKEY hkey, mode_t *attribute, uid_t *uidret,
+get_reg_attribute (HKEY hkey, mode_t &attribute, uid_t *uidret,
                   gid_t *gidret)
 {
   security_descriptor sd;
@@ -292,7 +292,7 @@ get_reg_attribute (HKEY hkey, mode_t *attribute, uid_t *uidret,
 
 int
 get_file_attribute (HANDLE handle, path_conv &pc,
-                   mode_t *attribute, uid_t *uidret, gid_t *gidret)
+                   mode_t &attribute, uid_t *uidret, gid_t *gidret)
 {
   if (pc.has_acls ())
     {
@@ -399,7 +399,7 @@ get_object_sd (HANDLE handle, security_descriptor &sd)
 
 int
 get_object_attribute (HANDLE handle, uid_t *uidret, gid_t *gidret,
-                     mode_t *attribute)
+                     mode_t &attribute)
 {
   security_descriptor sd;
 
@@ -462,7 +462,7 @@ set_created_file_access (HANDLE handle, path_conv &pc, mode_t attr)
        attr |= S_IFDIR;
       attr_rd = attr;
       aclp = (aclent_t *) tp.c_get ();
-      if ((nentries = get_posix_access (sd, &attr_rd, &uid, &gid, aclp,
+      if ((nentries = get_posix_access (sd, attr_rd, &uid, &gid, aclp,
                                        MAX_ACL_ENTRIES, &std_acl)) >= 0)
        {
          if (S_ISLNK (attr))