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RFIO_ACCESS(3) Rfio Library Functions RFIO_ACCESS(3)

NAME

rfio_access - check existence/accessibility of a file/directory

SYNOPSIS

Under Unix:
#include <sys/types.h>
#include <unistd.h>
#include "rfio_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 "rfio_api.h"

int rfio_access (const char *path, int amode);

DESCRIPTION

rfio_access checks 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 directory or the full 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.

ERRORS

The named file/directory does not exist.
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.

SEE ALSO

Castor_limits(4), rfio_chmod(3), rfio_stat(3)

AUTHOR

LCG Grid Deployment Team

$Date$ LCG