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