PIPE(2)                              SysV                              PIPE(2)



NAME
     pipe - create an interprocess channel

SYNOPSIS
     int pipe (fildes)
     int fildes[2];

DESCRIPTION
     pipe creates an I/O mechanism called a pipe and returns two file
     descriptors, fildes[0] and fildes[1].  fildes[0] is opened for reading
     and fildes[1] is opened for writing.

     Up to 5120 bytes of data are buffered by the pipe before the writing
     process is blocked.  A read-only file descriptor fildes[0] accesses the
     data written to fildes[1] on a first-in-first-out (FIFO) basis.

ERRORS
     pipe will fail if any of the following is true:

     [EMFILE]  NOFILES file descriptors are currently open.

     [ENFILE]  The system file table is full.

SEE ALSO
     read(2), write(2).
     sh(1) in the SysV Command Reference.

DIAGNOSTICS
     Upon successful completion, a value of 0 is returned.  Otherwise, a value
     of -1 is returned and errno is set to indicate the error.