/* copy-acl.c - copy access control list from one file to another file
- Copyright (C) 2002-2003, 2005-2010 Free Software Foundation, Inc.
+ Copyright (C) 2002-2003, 2005-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
if (ret < 0 && saved_errno == 0)
{
saved_errno = errno;
- if ((errno == ENOSYS || errno == EOPNOTSUPP)
+ if ((errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL)
&& !acl_nontrivial (count, entries))
saved_errno = 0;
}
int count;
struct acl_entry entries[NACLENTRIES];
+# if HAVE_ACLV_H
+ int aclv_count;
+ struct acl aclv_entries[NACLVENTRIES];
+# endif
+ int did_chmod;
+ int saved_errno;
int ret;
for (;;)
if (count < 0)
{
- if (ACL_NOT_WELL_SUPPORTED (errno))
+ if (errno == ENOSYS || errno == EOPNOTSUPP || errno == ENOTSUP)
{
count = 0;
break;
Repeat. */
}
- if (count == 0)
- return qset_acl (dst_name, dest_desc, mode);
-
- ret = (dest_desc != -1
- ? fsetacl (dest_desc, count, entries)
- : setacl (dst_name, count, entries));
- if (ret < 0)
+# if HAVE_ACLV_H
+ for (;;)
{
- int saved_errno = errno;
+ aclv_count = acl ((char *) src_name, ACL_CNT, NACLVENTRIES, aclv_entries);
- if (ACL_NOT_WELL_SUPPORTED (errno))
+ if (aclv_count < 0)
{
- struct stat source_statbuf;
-
- if ((source_desc != -1
- ? fstat (source_desc, &source_statbuf)
- : stat (src_name, &source_statbuf)) == 0)
+ if (errno == ENOSYS || errno == EOPNOTSUPP || errno == EINVAL)
{
- if (!acl_nontrivial (count, entries, &source_statbuf))
- return chmod_or_fchmod (dst_name, dest_desc, mode);
+ count = 0;
+ break;
}
else
- saved_errno = errno;
+ return -2;
}
- chmod_or_fchmod (dst_name, dest_desc, mode);
- errno = saved_errno;
- return -1;
+ if (aclv_count == 0)
+ break;
+
+ if (aclv_count > NACLVENTRIES)
+ /* If NACLVENTRIES cannot be trusted, use dynamic memory allocation. */
+ abort ();
+
+ if (acl ((char *) src_name, ACL_GET, aclv_count, aclv_entries)
+ == aclv_count)
+ break;
+ /* Huh? The number of ACL entries changed since the last call.
+ Repeat. */
}
+# endif
- if (mode & (S_ISUID | S_ISGID | S_ISVTX))
+ 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)
{
- /* 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. */
+ 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;
+ }
- return chmod_or_fchmod (dst_name, dest_desc, mode);
+# 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;
return 0;
+#elif USE_ACL && HAVE_ACLSORT /* NonStop Kernel */
+
+ int count;
+ struct acl entries[NACLENTRIES];
+ int ret;
+
+ for (;;)
+ {
+ count = acl ((char *) src_name, ACL_CNT, NACLENTRIES, NULL);
+
+ if (count < 0)
+ {
+ if (0)
+ {
+ count = 0;
+ break;
+ }
+ else
+ return -2;
+ }
+
+ if (count == 0)
+ break;
+
+ if (count > NACLENTRIES)
+ /* If NACLENTRIES cannot be trusted, use dynamic memory allocation. */
+ abort ();
+
+ if (acl ((char *) src_name, ACL_GET, count, entries) == count)
+ break;
+ /* Huh? The number of ACL entries changed since the last call.
+ Repeat. */
+ }
+
+ 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);
+ }
+ return 0;
+
#else
return qset_acl (dst_name, dest_desc, mode);