DPNS_GETACL

Section: DPNS Library Functions (3)
Updated: $Date: 2003/04/08 05:37:53 $
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NAME

dpns_getacl - get DPNS directory/file access control lists

SYNOPSIS

#include <sys/types.h>
#include "dpns_api.h"

int dpns_getacl (const char *path, int nentries, struct dpns_acl *acl)

DESCRIPTION

dpns_getacl gets the Access Control List associated with a DPNS directory/file.

path: specifies the logical pathname relative to the current DPNS directory or the full DPNS pathname.
nentries: specifies the number of entries that can fit in the buffer. If nentries is zero, the acl pointer can be NULL and the routine just returns the actual number of entries.
acl: is a pointer to an array of dpns_acl structures allocated by the application to receive the reply.

struct dpns_acl {
        unsigned char   a_type;
        int             a_id;
        unsigned char   a_perm;
};

a_type: is the ACL type: CNS_ACL_USER_OBJ, CNS_ACL_USER, CNS_ACL_GROUP_OBJ, CNS_ACL_GROUP, CNS_ACL_MASK or CNS_ACL_OTHER. Types for default entries are obtained by OR'ing the flag CNS_ACL_DEFAULT with one of the above types.
a_id: is the user or group numeric id.
a_perm: is the access permission in numeric form obtained by OR'ing some of the bits S_IROTH, S_IWOTH, S_IXOTH.

RETURN VALUE

This routine returns the actual number of entries if the operation was successful or -1 if the operation failed. In the latter case, serrno is set appropriately.

ERRORS

ENOENT: The named file/directory does not exist or is a null pathname.
EACCES: Search permission is denied on a component of the path prefix.
EFAULT: path is a NULL pointer or acl is a NULL pointer and nentries is greater than zero.
ENOTDIR: A component of path prefix is not a directory.
EINVAL: nentries is negative.
ENOSPC: nentries is less than the number of entries returned by the server.
ENAMETOOLONG: The length of path exceeds CA_MAXPATHLEN or the length of a path component exceeds CA_MAXNAMELEN.
SENOSHOST: Host unknown.
SENOSSERV: Service unknown.
SECOMERR: Communication error.
ENSNACT: Name server is not running or is being shutdown.

AUTHOR

LCG Grid Deployment Team