NAME¶
lfc_accessr - check existence/accessibility of a file replica
SYNOPSIS¶
Under Unix:
#include <sys/types.h>
#include <unistd.h>
#include "lfc_api.h"
Under Windows/NT:
#include <sys/types.h>
#define R_OK 4
#define W_OK 2
#define X_OK 1
#define F_OK 0
#include "lfc_api.h"
int lfc_accessr (const char *sfn, int
amode);
DESCRIPTION¶
lfc_accessr checks in the name server database the existence or the
accessibility of the file replica
sfn according to the bit pattern in
amode using the real user ID.
- sfn
- is either the Site URL or the Physical File Name for the replica.
- amode
- the bit pattern is built by an OR of the constants defined in
<unistd.h> under Unix or to be explicitly defined under
Windows/NT:
- R_OK
- test for read permission
- W_OK
- test for write permission
- X_OK
- test for search/execute permission
- F_OK
- test for existence of the file.
RETURN VALUE¶
This routine returns 0 if the operation was successful or -1 if the operation
failed. In the latter case,
serrno is set appropriately.
ERRORS¶
- ENOENT
- The named file does not exist.
- EACCES
- Search permission is denied on a component of the parent file prefix, the
specified access to the file itself is denied or W_OK is requested but the
replica status is not 'P' (cannot modify an existing file).
- EFAULT
- sfn is a NULL pointer.
- EINVAL
- amode is invalid.
- ENAMETOOLONG
- The length of sfn exceeds CA_MAXSFNLEN.
- SENOSHOST
- Host unknown.
- SENOSSERV
- Service unknown.
- SECOMERR
- Communication error.
- ENSNACT
- Name server is not running or is being shutdown.
SEE ALSO¶
Castor_limits(4),
lfc_chmod(3),
lfc_statr(3)
AUTHOR¶
LCG Grid Deployment Team
