+ /* Is there an ACL of either kind? */
+# ifdef ACE_GETACL
+ if (ace_count == 0)
+# endif
+ if (count == 0)
+ return qset_acl (dst_name, dest_desc, mode);
+
+ did_chmod = 0; /* set to 1 once the mode bits in 0777 have been set */
+ saved_errno = 0; /* the first non-ignorable error code */
+
+ if (!MODE_INSIDE_ACL)
+ {
+ /* On Cygwin, it is necessary to call chmod before acl, because
+ chmod can change the contents of the ACL (in ways that don't
+ change the allowed accesses, but still visible). */
+ if (chmod_or_fchmod (dst_name, dest_desc, mode) != 0)
+ saved_errno = errno;
+ did_chmod = 1;
+ }
+
+ /* If both ace_entries and entries are available, try SETACL before
+ ACE_SETACL, because SETACL cannot fail with ENOTSUP whereas ACE_SETACL
+ can. */
+
+ if (count > 0)
+ {
+ ret = (dest_desc != -1
+ ? facl (dest_desc, SETACL, count, entries)
+ : acl (dst_name, SETACL, count, entries));
+ if (ret < 0 && saved_errno == 0)
+ {
+ saved_errno = errno;
+ if ((errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL)
+ && !acl_nontrivial (count, entries))
+ saved_errno = 0;
+ }
+ else
+ did_chmod = 1;
+ }
+ free (entries);
+
+# ifdef ACE_GETACL
+ if (ace_count > 0)
+ {
+ ret = (dest_desc != -1
+ ? facl (dest_desc, ACE_SETACL, ace_count, ace_entries)
+ : acl (dst_name, ACE_SETACL, ace_count, ace_entries));
+ if (ret < 0 && saved_errno == 0)
+ {
+ saved_errno = errno;
+ if ((errno == ENOSYS || errno == EINVAL || errno == ENOTSUP)
+ && !acl_ace_nontrivial (ace_count, ace_entries))
+ saved_errno = 0;
+ }
+ }
+ free (ace_entries);
+# endif
+
+ if (MODE_INSIDE_ACL
+ && did_chmod <= ((mode & (S_ISUID | S_ISGID | S_ISVTX)) ? 1 : 0))
+ {
+ /* We did not call chmod so far, and either the mode and the ACL are
+ separate or special bits are to be set which don't fit into ACLs. */
+
+ if (chmod_or_fchmod (dst_name, dest_desc, mode) != 0)
+ {
+ if (saved_errno == 0)
+ saved_errno = errno;
+ }
+ }
+
+ if (saved_errno)
+ {
+ errno = saved_errno;
+ return -1;
+ }
+ return 0;
+
+#elif USE_ACL && HAVE_GETACL /* HP-UX */
+
+ struct acl_entry entries[NACLENTRIES];
+ int count;
+# if HAVE_ACLV_H
+ struct acl aclv_entries[NACLVENTRIES];
+ int aclv_count;
+# endif
+ int did_chmod;
+ int saved_errno;
+ int ret;
+
+ count = (source_desc != -1
+ ? fgetacl (source_desc, NACLENTRIES, entries)
+ : getacl (src_name, NACLENTRIES, entries));
+
+ if (count < 0)
+ {
+ if (errno == ENOSYS || errno == EOPNOTSUPP || errno == ENOTSUP)
+ count = 0;
+ else
+ return -2;
+ }
+ else if (count > 0)
+ {
+ if (count > NACLENTRIES)
+ /* If NACLENTRIES cannot be trusted, use dynamic memory allocation. */
+ abort ();
+ }
+
+# if HAVE_ACLV_H
+ aclv_count = acl ((char *) src_name, ACL_GET, NACLVENTRIES, aclv_entries);
+
+ if (aclv_count < 0)
+ {
+ if (errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL)
+ count = 0;
+ else
+ return -2;
+ }
+ else if (aclv_count > 0)
+ {
+ if (aclv_count > NACLVENTRIES)
+ /* If NACLVENTRIES cannot be trusted, use dynamic memory allocation. */
+ abort ();
+ }
+# endif
+
+ if (count == 0)
+# if HAVE_ACLV_H
+ if (aclv_count == 0)
+# endif
+ return qset_acl (dst_name, dest_desc, mode);
+
+ did_chmod = 0; /* set to 1 once the mode bits in 0777 have been set */
+ saved_errno = 0; /* the first non-ignorable error code */
+
+ if (count > 0)
+ {
+ ret = (dest_desc != -1
+ ? fsetacl (dest_desc, count, entries)
+ : setacl (dst_name, count, entries));
+ if (ret < 0 && saved_errno == 0)
+ {
+ saved_errno = errno;
+ if (errno == ENOSYS || errno == EOPNOTSUPP || errno == ENOTSUP)
+ {
+ struct stat source_statbuf;
+
+ if ((source_desc != -1
+ ? fstat (source_desc, &source_statbuf)
+ : stat (src_name, &source_statbuf)) == 0)
+ {
+ if (!acl_nontrivial (count, entries, &source_statbuf))
+ saved_errno = 0;
+ }
+ else
+ saved_errno = errno;
+ }
+ }
+ else
+ did_chmod = 1;
+ }
+
+# if HAVE_ACLV_H
+ if (aclv_count > 0)
+ {
+ ret = acl ((char *) dst_name, ACL_SET, aclv_count, aclv_entries);
+ if (ret < 0 && saved_errno == 0)
+ {
+ saved_errno = errno;
+ if (errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL)
+ {
+ if (!aclv_nontrivial (aclv_count, aclv_entries))
+ saved_errno = 0;
+ }
+ }
+ else
+ did_chmod = 1;
+ }
+# endif
+
+ if (did_chmod <= ((mode & (S_ISUID | S_ISGID | S_ISVTX)) ? 1 : 0))
+ {
+ /* We did not call chmod so far, and special bits are to be set which
+ don't fit into ACLs. */
+
+ if (chmod_or_fchmod (dst_name, dest_desc, mode) != 0)
+ {
+ if (saved_errno == 0)
+ saved_errno = errno;
+ }
+ }
+
+ if (saved_errno)
+ {
+ errno = saved_errno;
+ return -1;
+ }
+ return 0;
+
+#elif USE_ACL && HAVE_ACLX_GET && 0 /* AIX */
+
+ /* TODO */
+
+#elif USE_ACL && HAVE_STATACL /* older AIX */
+
+ union { struct acl a; char room[4096]; } u;
+ int ret;
+
+ if ((source_desc != -1
+ ? fstatacl (source_desc, STX_NORMAL, &u.a, sizeof (u))
+ : statacl (src_name, STX_NORMAL, &u.a, sizeof (u)))
+ < 0)
+ return -2;
+
+ ret = (dest_desc != -1
+ ? fchacl (dest_desc, &u.a, u.a.acl_len)
+ : chacl (dst_name, &u.a, u.a.acl_len));
+ if (ret < 0)
+ {
+ int saved_errno = errno;
+
+ chmod_or_fchmod (dst_name, dest_desc, mode);
+ errno = saved_errno;
+ return -1;
+ }
+
+ /* No need to call chmod_or_fchmod at this point, since the mode bits
+ S_ISUID, S_ISGID, S_ISVTX are also stored in the ACL. */
+
+ return 0;
+
+#elif USE_ACL && HAVE_ACLSORT /* NonStop Kernel */
+
+ struct acl entries[NACLENTRIES];
+ int count;
+ int ret;
+
+ count = acl ((char *) src_name, ACL_GET, NACLENTRIES, entries);
+
+ if (count < 0)
+ {
+ if (0)
+ count = 0;
+ else
+ return -2;
+ }
+ else if (count > 0)
+ {
+ if (count > NACLENTRIES)
+ /* If NACLENTRIES cannot be trusted, use dynamic memory allocation. */
+ abort ();
+ }
+
+ if (count == 0)
+ return qset_acl (dst_name, dest_desc, mode);
+
+ ret = acl ((char *) dst_name, ACL_SET, count, entries);
+ if (ret < 0)
+ {
+ int saved_errno = errno;
+
+ if (0)
+ {
+ if (!acl_nontrivial (count, entries))
+ return chmod_or_fchmod (dst_name, dest_desc, mode);
+ }
+
+ chmod_or_fchmod (dst_name, dest_desc, mode);
+ errno = saved_errno;
+ return -1;
+ }
+
+ if (mode & (S_ISUID | S_ISGID | S_ISVTX))
+ {
+ /* We did not call chmod so far, and either the mode and the ACL are
+ separate or special bits are to be set which don't fit into ACLs. */
+
+ return chmod_or_fchmod (dst_name, dest_desc, mode);
+ }