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/* Copyright (C) 1998 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#ifndef _BITS_STROPTS_H
#define _BITS_STROPTS_H 1
#include <bits/types.h>
/* Macros used as `request' argument to `ioctl'. */
#define I_PUSH 1 /* Push STREAMS module onto top of the current
STREAM, just below the STREAM head. */
#define I_POP 2 /* Remove STREAMS module from just below the
STREAM head. */
#define I_LOOK 3 /* Retrieve the name of the module just below
the STREAM head and place it in a character
string. */
#define I_FLUSH 4 /* Flush all input and/or output. */
#define I_FLUSHBAND 5 /* Flush only band specified. */
#define I_SETSIG 6 /* Inform the STREAM head that the process
wants the SIGPOLL signal issued. */
#define I_GETSIG 7 /* Return the events for which the calling
process is currently registered to be sent
a SIGPOLL signal. */
#define I_FIND 8 /* Compares the names of all modules currently
present in the STREAM to the name pointed to
by `arg'. */
#define I_PEEK 9 /* Allows a process to retrieve the information
in the first message on the STREAM head read
queue without taking the message off the
queue. */
#define I_SRDOPT 10 /* Sets the read mode. */
#define I_GRDOPT 11 /* Returns the current read mode setting. */
#define I_NREAD 12 /* Counts the number of data bytes in the data
block in the first message. */
#define I_FDINSERT 13 /* Create a message from the specified
buffer(s), adds information about another
STREAM, and send the message downstream. */
#define I_STR 14 /* Construct an internal STREAMS `ioctl'
message and send that message downstream. */
#define I_SWROPT 15 /* Set the write mode. */
#define I_GWRSET 16 /* Return the current write mode setting. */
#define I_SENDFD 17 /* Requests the STREAM associated with `fildes'
to send a message, containing a file
pointer, to the STREAM head at the other end
of a STREAMS pipe. */
#define I_RECVFD 18 /* Retrieve the file descriptor associated with
the message sent by an I_SENDFD `ioctl'
over a STREAMS pipe. */
#define I_LIST 19 /* List all the module names on the STREAM, up
to and including the topmost driver name. */
#define I_ATMARK 20 /* See if the current message on the STREAM
head read queue is "marked" by some module
downstream. */
#define I_CKBAND 21 /* Check if the message of a given priority
band exists on the STREAM head read
queue. */
#define I_GETBAND 22 /* Return the priority band of the first
message on the STREAM head read queue. */
#define I_CANPUT 23 /* Check if a certain band is writable. */
#define I_SETCLTIME 24 /* Set the time the STREAM head will delay when
a STREAM is closing and there is data on
the write queues. */
#define I_LINK 25 /* Connect two STREAMs. */
#define I_UNLINK 26 /* Disconnects the two STREAMs. */
#define I_PLINK 27 /* Connect two STREAMs with a persistent
link. */
#define I_PUNLINK 28 /* Disconnect the two STREAMs that were
connected with a persistent link. */
/* Used in `I_LOOK' request. */
#define FMNAMESZ 255
/* Flush options. */
#define FLUSHR 1 /* Flush read queues. */
#define FLUSHW 2 /* Flush write queues. */
#define FLUSHRW 3 /* Flush read and write queues. */
/* Possible arguments for `I_SETSIG'. */
#define S_RDNORM 0x0001 /* A normal message has arrived. */
#define S_RDBAND 0x0002 /* A message with a non-zero priority has
arrived. */
#define S_INPUT 0x0004 /* A message, other than a high-priority
message, has arrived. */
#define S_HIPRI 0x0008 /* A high-priority message is present. */
#define S_OUTPUT 0x0010 /* The write queue for normal data is no longer
full. */
#define S_WRNORM S_OUTPUT
#define S_WRBAND 0x0020 /* The write queue for a non-zero priority
band is no longer full. */
#define S_MSG 0x0040 /* A STREAMS signal message that contains the
SIGPOLL signal reaches the front of the
STREAM head read queue. */
#define S_ERROR 0x0080 /* Notification of an error condition. */
#define S_HANGUP 0x0100 /* Notification of a hangup. */
#define S_BANDURG 0x0200 /* When used in conjunction with S_RDBAND,
SIGURG is generated instead of SIGPOLL when
a priority message reaches the front of the
STREAM head read queue. */
/* Option for `I_PEEK'. */
#define RS_HIPRI 1 /* Only look for high-priority messages. */
/* Options for `I_SRDOPT'. */
#define RDNORM 1 /* Byte-STREAM mode, the default. */
#define RMSGD 2 /* Message-discard mode. */
#define RMSGN 3 /* Message-nondiscard mode. */
#define RPROTNORM 4 /* Fail `read' with EBADMSG if a message
containing a control part is at the front
of the STREAM head read queue. */
#define RPROTDAT 5 /* Deliver the control part of a message as
data. */
#define RPROTDIS 6 /* Discard the control part of a message,
delivering any data part. */
/* Possible mode for `I_SWROPT'. */
#define SNDZERO 1 /* Send a zero-length message downstream when a
`write' of 0 bytes occurs. */
/* Arguments for `I_ATMARK'. */
#define ANYMARK 1 /* Check if the message is marked. */
#define LASTMARK 2 /* Check if the message is the last one marked
on the queue. */
/* Argument for `I_UNLINK'. */
#define MUXID_ALL 1 /* Unlink all STREAMs linked to the STREAM
associated with `fildes'. */
/* Macros for `getmsg', `getpmsg', `putmsg' and `putpmsg'. */
#define MSG_ANY 1 /* Receive any message. */
#define MSG_BAND 2 /* Receive message from specified band. */
#define MSG_HIPRI 3 /* Send/receive high priority message. */
#define MORECTL 4 /* More control information is left in
message. */
#define MOREDATA 5 /* More data is left in message. */
/* Structure used for the I_FLUSHBAND ioctl on streams. */
struct bandinfo
{
unsigned char bi_pri;
int bi_flag;
};
struct strbuf
{
int maxlen; /* Maximum buffer length. */
int len; /* Length of data. */
char *buf; /* Pointer to buffer. */
};
struct strpeek
{
struct strbuf ctlbuf;
struct strbuf databuf;
__t_uscalar_t flags;
};
struct strfdinsert
{
struct strbuf ctlbuf;
struct strbuf databuf;
__t_uscalar_t flags;
int fildes;
int offset;
};
struct strioctl
{
int ic_cmd;
int ic_timout;
int ic_len;
char *ic_dp;
};
struct strrecvfd
{
int fd;
__uid_t uid;
__gid_t gid;
};
struct str_mlist
{
char l_name[FMNAMESZ + 1];
};
struct str_list
{
int sl_nmods;
struct str_mlist *sl_modlist;
};
#endif /* bits/stropts.h */
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