FATTACH(3C)FATTACH(3C)NAMEfattach - attach a STREAMS- or doors-based file descriptor to an object
in the file system name space
SYNOPSIS
#include <stropts.h>
int fattach(int fildes, const char *path);
DESCRIPTION
The fattach() function attaches a STREAMS- or doors-based file descrip‐
tor to an object in the file system name space, effectively associating
a name with fildes. The fildes argument must be a valid open file
descriptor representing a STREAMS or doors file. The path argument is a
path name of an existing object and the user must have appropriate
privileges or be the owner of the file and have write permissions. All
subsequent operations on path will operate on the STREAMS or doors file
until the STREAMS or doors file is detached from the node. The fildes
argument can be attached to more than one path, that is, a stream or
door can have several names associated with it.
The attributes of the named stream or door (see stat(2)), are initial‐
ized as follows: the permissions, user ID, group ID, and times are set
to those of path, the number of links is set to 1, and the size and
device identifier are set to those of the streams or doors device asso‐
ciated with fildes. If any attributes of the named stream or door are
subsequently changed (for example, chmod(2)), the attributes of the
underlying object are not affected.
RETURN VALUES
Upon successful completion, fattach() returns 0. Otherwise it returns
−1 and sets errno to indicate an error.
ERRORS
The fattach() function will fail if:
EACCES
The user is the owner of path but does not have write
permissions on path or fildes is locked.
EBADF
The fildes argument is not a valid open file descrip‐
tor.
EBUSY
The path argument is currently a mount point or has a
STREAMS or doors file descriptor attached to it.
EINVAL
The path argument is a file in a remotely mounted
directory.
EINVAL
The fildes argument does not represent a STREAMS or
doors file.
ELOOP
Too many symbolic links were encountered in translating
path.
ENAMETOOLONG
The size of path exceeds {PATH_MAX}, or the component
of a path name is longer than {NAME_MAX} while
{_POSIX_NO_TRUNC} is in effect.
ENOENT
The path argument does not exist.
ENOTDIR
A component of a path prefix is not a directory.
EPERM
The effective user ID is not the owner of path or a
user with the appropriate privileges.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌────────────────────┬─────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├────────────────────┼─────────────────┤
│Interface Stability │ Standard │
├────────────────────┼─────────────────┤
│MT-Level │ MT-Safe │
└────────────────────┴─────────────────┘
SEE ALSOfdetach(1M), chmod(2), mount(2), stat(2), door_create(3C), fdetach(3C),
isastream(3C), attributes(5), standards(5), streamio(7I)
STREAMS Programming Guide
Jul 24, 2002 FATTACH(3C)
