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MKFIFO (2) | System calls | Unix Manual Pages | :man

NAME

mkfifo - make a fifo file

CONTENTS

Library
Synopsis
Description
Return Values
Errors
See Also
Standards

LIBRARY


.Lb libc

SYNOPSIS


.In sys/types.h
.In sys/stat.h int mkfifo "const char *path" "mode_t mode"

DESCRIPTION

The mkfifo system call creates a new fifo file with name path. The access permissions are specified by 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


.Rv -std mkfifo

ERRORS

The mkfifo system call will fail and no fifo will be created if:
[ENOTSUP]
The kernel has not been configured to support fifo’s.
[ENOTDIR]
A component of the path prefix is not a directory.
[ENAMETOOLONG]
A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.
[ENOENT]
A component of the path prefix does not exist.
[EACCES]
Search permission is denied for a component of the path prefix.
[ELOOP]
Too many symbolic links were encountered in translating the pathname.
[EROFS]
The named file resides on a read-only file system.
[EEXIST]
The named file exists.
[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.
[ENOSPC]
There are no free inodes on the file system on which the fifo is being created.
[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.
[EDQUOT]
The user’s quota of inodes on the file system on which the fifo is being created has been exhausted.
[EIO] An I/O error occurred while making the directory entry or allocating the inode.
[EIO] An I/O error occurred while reading from or writing to the file system.
[EFAULT]
The path argument points outside the process’s allocated address space.

SEE ALSO

chmod(2), mknod(2), stat(2), umask(2)

STANDARDS


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