Write privilege for user Post: 43133

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rfio_chmod

RFIO_CHMOD(3)						      Rfio Library Functions						     RFIO_CHMOD(3)

NAME

       rfio_chmod, rfio_fchmod - change access mode of a directory/file

SYNOPSIS

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

       int rfio_chmod (const char *path, mode_t mode);
       int rfio_fchmod (int s, mode_t mode);

DESCRIPTION

       rfio_chmod sets the access permission portion of the mode of a directory/file to the bit pattern in mode.

       rfio_fchmod is identical to rfio_chmod but works on the file descriptor s returned by rfio_open.

       path   specifies the logical pathname relative to the current directory or the full pathname.

       mode   is constructed by OR'ing the bits defined in <sys/stat.h> under Unix or  "statbits.h" under Windows/NT:

	      S_IRUSR	0000400 	read by owner
	      S_IWUSR	0000200 	write by owner
	      S_IXUSR	0000100 	execute/search by owner
	      S_IRGRP	0000040 	read by group
	      S_IWGRP	0000020 	write by group
	      S_IXGRP	0000010 	execute/search by group
	      S_IROTH	0000004 	read by others
	      S_IWOTH	0000002 	write by others
	      S_IXOTH	0000001 	execute/search by others

       The  effective user ID of the process must match the owner of the file or be super-user.  If a directory is writable and has the sticky bit
       set, files/directories within that directory can be removed or renamed only if:

	      the effective user ID of the requestor matches the owner ID of the file or

	      the effective user ID of the requestor matches the owner ID of the directory or

	      the file is writable by the requestor or

	      the requestor is super-user.

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

       EPERM	    The effective user ID does not match the owner of the file and is not super-user.

       ENOENT	    The named file/directory does not exist or is a null pathname.

       EBADF	    s is not a valid file descriptor.

       EACCES	    Search permission is denied on a component of the path prefix or write permission on the file itself is denied.

       EFAULT	    path is a NULL pointer.

       ENOTDIR	    A component of path prefix is not a directory.

       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.

SEE ALSO

       Castor_limits(4)

AUTHOR

       LCG Grid Deployment Team

LCG
							   $Date: 2005/03/31 13:13:02 $ 					     RFIO_CHMOD(3)