A/UX® Programmer's Reference Sections

mkfifo(3P) mkfifo(3P)
NAME
mkf if 0 - make a FIFO special file
SYNOPSIS
finclude
finclude
int mkfifo (path, mode)
char *path;
mode _ t mode;
DESCRIPTION
mk f if 0 creates a new FIFO special file named by the path name
pointed to by path. The mode of the new FIFO is initialized from
mode. The file permission bits of mode are modified by the file
creation mask of the process. If bits in mode other than file permissions
are set, the permissions on the FIFO will be undefined.
For the POSIX environment, the following constants for mode are
defined in :
S IRUSR read permission, owner
S IWUSER
S IXUSR
S IRGRP
S IWGRP
S IXGRP
S IROTH
writer permission, owner
execute/search permission, owner
read permission, group
writer permission, group
execute/search permission, group
read permission, others
S IWOTH writer permission, others
S _ IXOTH execute/search permission, others
The owner ID of the FIFO is set to the effective user ID of the
process. The group ID of the FIFO is set to the effective group ID
of the process.
On successful completion, mkfifo marks for update the
st atime, st ctime, and st mtime fields for the file. The
s t - c time and -s t mt ime fieldS of the directory that contains
thenew entry are also marked for update.
RETURN VALUE
On successful completion, mkfifo returns a value of O. Otherwise,
a value of -1 is returned, no FIFO is created, and errno is
set to indicate the error.
1
February, 1990
Revision C