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authorJim Meyering <jim@meyering.net>2002-02-26 15:38:49 +0000
committerJim Meyering <jim@meyering.net>2002-02-26 15:38:49 +0000
commit04c4d4dc873cd017f9473790dc7e444e8f2300cb (patch)
tree222d9d8728df8b689a40cfeb76a899a03b05d577 /lib
parent9f96885c8379ad9f0b5a972ea8f7bdbf3f18c5c5 (diff)
downloadcoreutils-04c4d4dc873cd017f9473790dc7e444e8f2300cb.tar.xz
*** empty log message ***
Diffstat (limited to 'lib')
-rw-r--r--lib/acl.c62
-rw-r--r--lib/acl.h28
2 files changed, 90 insertions, 0 deletions
diff --git a/lib/acl.c b/lib/acl.c
new file mode 100644
index 000000000..74639cc0b
--- /dev/null
+++ b/lib/acl.c
@@ -0,0 +1,62 @@
+/* acl.c - access control lists
+
+ Copyright (C) 2002 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
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ Written by Paul Eggert. */
+
+#if HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <sys/stat.h>
+#ifndef S_ISLNK
+# define S_ISLNK(Mode) 0
+#endif
+
+#include "acl.h"
+
+#include <errno.h>
+#ifndef ENOSYS
+# define ENOSYS (-1)
+#endif
+
+#ifndef MIN_ACL_ENTRIES
+# define MIN_ACL_ENTRIES 4
+#endif
+
+/* Return 1 if PATH has a nontrivial access control list, 0 if not,
+ and -1 (setting errno) if an error is encountered. */
+
+int
+file_has_acl (char const *path, struct stat const *pathstat)
+{
+ /* FIXME: This implementation should work on recent-enough versions
+ of HP-UX, Solaris, and Unixware, but it simply returns 0 with
+ POSIX 1003.1e (draft 17 -- abandoned), AIX, GNU/Linux, Irix, and
+ Tru64. Please see Samba's source/lib/sysacls.c file for
+ fix-related ideas. */
+
+#if HAVE_ACL && defined GETACLCNT
+ if (! S_ISLNK (pathstat->st_mode))
+ {
+ int n = acl (path, GETACLCNT, 0, NULL);
+ return n < 0 ? (errno == ENOSYS ? 0 : -1) : (MIN_ACL_ENTRIES < n);
+ }
+#endif
+
+ return 0;
+}
diff --git a/lib/acl.h b/lib/acl.h
new file mode 100644
index 000000000..72a0da76b
--- /dev/null
+++ b/lib/acl.h
@@ -0,0 +1,28 @@
+/* acl.c - access control lists
+
+ Copyright (C) 2002 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
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ Written by Paul Eggert. */
+
+#if HAVE_SYS_ACL_H && HAVE_ACL
+# include <sys/acl.h>
+#endif
+#if ! defined GETACLCNT && defined ACL_CNT
+# define GETACLCNT ACL_CNT
+#endif
+
+int file_has_acl (char const *, struct stat const *);