- buster 1.10.0-2+b3
|LFC_ACCESS(3)||LFC Library Functions||LFC_ACCESS(3)|
NAME¶lfc_access - check existence/accessibility of a file/directory
#define R_OK 4
#define W_OK 2
#define X_OK 1
#define F_OK 0
int lfc_access (const char *path, int amode);
DESCRIPTION¶lfc_access checks in the name server database the existence or the accessibility of the file/directory path according to the bit pattern in amode using the real user ID.
- specifies the logical pathname relative to the current LFC directory or the full LFC pathname.
- 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:
- test for read permission
- test for write permission
- test for search/execute permission
- test for existence of the directory/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.
- The named file/directory does not exist or is a dangling symbolic link.
- Search permission is denied on a component of the path prefix or specified access to the file itself is denied.
- path is a NULL pointer.
- A component of path prefix is not a directory.
- amode is invalid.
- The length of path exceeds CA_MAXPATHLEN or the length of a path component exceeds CA_MAXNAMELEN.
- Host unknown.
- Service unknown.
- Communication error.
- Name server is not running or is being shutdown.
SEE ALSO¶Castor_limits(4), lfc_chdir(3), lfc_chmod(3), lfc_statg(3)
AUTHOR¶LCG Grid Deployment Team
|$Date: 2011-02-18 08:03:13 +0100 (Fri, 18 Feb 2011) $||LFC|