fattach(3c) [hpux man page]
fattach(3C) fattach(3C) NAME
fattach() - attach a STREAMS file descriptor to an object in the file system name space SYNOPSIS
DESCRIPTION
The function attaches the fd file descriptor to an object in the file system name space designated by path. fd specifies an open file descriptor to a STREAMS device or STREAMS-based pipe. path specifies the pathname of an existing object in the file system. A STREAMS device or pipe can be attached to more than one node in the file system name space. In other words, a STREAMS device or pipe is allowed to have several associated names. Until the STREAMS device or pipe is detached from the node (with fdetach(3C) or fdetach(1M)), all opera- tions on path will act on the STREAMS device or pipe instead of the file system object path. The stream's attributes (see the stat(2) reference page) are set according to the following scheme: o The group ID, user ID, times, and permissions are set to those of path. o The size as well as the device number are set to those of the STREAMS device or pipe designated by the fd parameter. Note that although the attributes of the STREAMS device or pipe may change (see the chmod(2) reference page), the attributes of the underlying file system object path will not be changed. o The number of links is set to 1. RETURN VALUE
Upon successful completion, the function returns a value of 0 (zero). Otherwise, it returns a value of -1, and is set to indicate the error. ERRORS
If any of the following conditions occurs, the function sets to the value that corresponds to the condition. [EACCES] Although the user is the owner of path, the user has no write permissions for it. [EBADF] The fd parameter is an invalid file descriptor. [EBUSY] The existing object specified by the path parameter is already mounted or has a file descriptor attached to it. [EFAULT] The path parameter points to a location outside of the allocated address space of the process. [EINVAL] The fd parameter does not refer to a STREAMS device or STREAMS-based pipe. [ELOOP] When path was translated, too many symbolic links were found. [ENOENT] path does not exist. [ENOTDIR] The directory portion of the path parameter does not exist. [ENAMETOOLONG] The size of a pathname component is longer than when is in effect, or the pathname length is longer than [EPERM] The current effective user ID is not the owner of the existing object specified by the path parameter. SEE ALSO
fdetach(3C), isastream(3C), chmod(2), stat(2), fdetach(1M), streamio(7). STANDARDS COMPLIANCE
fattach(3C)
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fattach(3C) Standard C Library Functions fattach(3C) NAME
fattach - 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 descriptor to an object in the file system name space, effectively associat- ing 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 initialized 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 descriptor. 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 ALSO
fdetach(1M), chmod(2), mount(2), stat(2), door_create(3DOOR), fdetach(3C), isastream(3C), attributes(5), standards(5), streamio(7I) STREAMS Programming Guide SunOS 5.10 24 Jul 2002 fattach(3C)