MKFIFO
Section: System Calls (2)
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BSD mandoc
NAME
mkfifo
- make a fifo file
SYNOPSIS
Fd #include <sys/types.h>
Fd #include <sys/stat.h>
Ft int
Fn mkfifo const char *path mode_t mode
DESCRIPTION
Fn Mkfifo
creates a new fifo file with name
Fa path .
The access permissions are
specified by
Fa mode
and restricted by the
umask(2)
of the calling process.
The fifo's owner ID is set to the process's effective user ID.
The fifo's group ID is set to that of the parent directory in
which it is created.
RETURN VALUES
A 0 return value indicates success. A -1 return value
indicates an error, and an error code is stored in
errno
ERRORS
Fn Mkfifo
will fail and no fifo will be created if:
- Bq Er EOPNOTSUPP
-
The kernel has not been configured to support fifo's.
- Bq Er ENOTDIR
-
A component of the path prefix is not a directory.
- Bq Er ENAMETOOLONG
-
A component of a pathname exceeded
{NAME_MAX}
characters, or an entire path name exceeded
{PATH_MAX}
characters.
- Bq Er ENOENT
-
A component of the path prefix does not exist.
- Bq Er EACCES
-
Search permission is denied for a component of the path prefix.
- Bq Er ELOOP
-
Too many symbolic links were encountered in translating the pathname.
- Bq Er EROFS
-
The named file resides on a read-only file system.
- Bq Er EEXIST
-
The named file exists.
- Bq Er ENOSPC
-
The directory in which the entry for the new fifo is being placed
cannot be extended because there is no space left on the file
system containing the directory.
- Bq Er ENOSPC
-
There are no free inodes on the file system on which the
fifo is being created.
- Bq Er EDQUOT
-
The directory in which the entry for the new fifo
is being placed cannot be extended because the
user's quota of disk blocks on the file system
containing the directory has been exhausted.
- Bq Er EDQUOT
-
The user's quota of inodes on the file system on
which the fifo is being created has been exhausted.
- Bq Er EIO
-
An
I/O
error occurred while making the directory entry or allocating the inode.
- Bq Er EIO
-
An
I/O
error occurred while reading from or writing to the file system.
- Bq Er EFAULT
-
Fa Path
points outside the process's allocated address space.
SEE ALSO
chmod(2),
stat(2),
umask(2)
STANDARDS
The
mkfifo
function call conforms to
St -p1003.1-88 .
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- RETURN VALUES
-
- ERRORS
-
- SEE ALSO
-
- STANDARDS
-
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Time: 16:28:59 GMT, April 18, 2022