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232 lines
8.3 KiB
C
232 lines
8.3 KiB
C
/* Copyright (C) 1998, 1999, 2000, 2002 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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _STROPTS_H
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# error "Never include <bits/stropts.h> directly; use <stropts.h> instead."
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#endif
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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 __SID ('S' << 8)
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#define I_NREAD (__SID | 1) /* Counts the number of data bytes in the data
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block in the first message. */
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#define I_PUSH (__SID | 2) /* 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 (__SID | 3) /* Remove STREAMS module from just below the
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STREAM head. */
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#define I_LOOK (__SID | 4) /* 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 (__SID | 5) /* Flush all input and/or output. */
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#define I_SRDOPT (__SID | 6) /* Sets the read mode. */
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#define I_GRDOPT (__SID | 7) /* Returns the current read mode setting. */
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#define I_STR (__SID | 8) /* Construct an internal STREAMS `ioctl'
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message and send that message downstream. */
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#define I_SETSIG (__SID | 9) /* Inform the STREAM head that the process
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wants the SIGPOLL signal issued. */
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#define I_GETSIG (__SID |10) /* 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 (__SID |11) /* 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_LINK (__SID |12) /* Connect two STREAMs. */
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#define I_UNLINK (__SID |13) /* Disconnects the two STREAMs. */
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#define I_PEEK (__SID |15) /* 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_FDINSERT (__SID |16) /* 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_SENDFD (__SID |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 (__SID |14) /* Non-EFT definition. */
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#define I_SWROPT (__SID |19) /* Set the write mode. */
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#define I_GWROPT (__SID |20) /* Return the current write mode setting. */
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#define I_LIST (__SID |21) /* 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_PLINK (__SID |22) /* Connect two STREAMs with a persistent
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link. */
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#define I_PUNLINK (__SID |23) /* Disconnect the two STREAMs that were
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connected with a persistent link. */
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#define I_FLUSHBAND (__SID |28) /* Flush only band specified. */
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#define I_CKBAND (__SID |29) /* 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 (__SID |30) /* Return the priority band of the first
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message on the STREAM head read queue. */
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#define I_ATMARK (__SID |31) /* 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_SETCLTIME (__SID |32) /* 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_GETCLTIME (__SID |33) /* Get current value for closing timeout. */
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#define I_CANPUT (__SID |34) /* Check if a certain band is writable. */
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/* Used in `I_LOOK' request. */
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#define FMNAMESZ 8 /* compatibility w/UnixWare/Solaris. */
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/* Flush options. */
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#define FLUSHR 0x01 /* Flush read queues. */
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#define FLUSHW 0x02 /* Flush write queues. */
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#define FLUSHRW 0x03 /* Flush read and write queues. */
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#ifdef __USE_GNU
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# define FLUSHBAND 0x04 /* Flush only specified band. */
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#endif
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/* Possible arguments for `I_SETSIG'. */
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#define S_INPUT 0x0001 /* A message, other than a high-priority
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message, has arrived. */
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#define S_HIPRI 0x0002 /* A high-priority message is present. */
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#define S_OUTPUT 0x0004 /* The write queue for normal data is no longer
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full. */
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#define S_MSG 0x0008 /* 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 0x0010 /* Notification of an error condition. */
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#define S_HANGUP 0x0020 /* Notification of a hangup. */
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#define S_RDNORM 0x0040 /* A normal message has arrived. */
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#define S_WRNORM S_OUTPUT
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#define S_RDBAND 0x0080 /* A message with a non-zero priority has
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arrived. */
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#define S_WRBAND 0x0100 /* The write queue for a non-zero priority
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band is no longer full. */
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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 0x01 /* Only look for high-priority messages. */
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/* Options for `I_SRDOPT'. */
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#define RNORM 0x0000 /* Byte-STREAM mode, the default. */
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#define RMSGD 0x0001 /* Message-discard mode. */
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#define RMSGN 0x0002 /* Message-nondiscard mode. */
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#define RPROTDAT 0x0004 /* Deliver the control part of a message as
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data. */
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#define RPROTDIS 0x0008 /* Discard the control part of a message,
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delivering any data part. */
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#define RPROTNORM 0x0010 /* 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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#ifdef __USE_GNU
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# define RPROTMASK 0x001C /* The RPROT bits */
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#endif
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/* Possible mode for `I_SWROPT'. */
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#define SNDZERO 0x001 /* Send a zero-length message downstream when a
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`write' of 0 bytes occurs. */
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#ifdef __USE_GNU
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# define SNDPIPE 0x002 /* Send SIGPIPE on write and putmsg if
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sd_werror is set. */
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#endif
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/* Arguments for `I_ATMARK'. */
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#define ANYMARK 0x01 /* Check if the message is marked. */
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#define LASTMARK 0x02 /* 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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#ifdef __USE_GNU
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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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#endif
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/* Macros for `getmsg', `getpmsg', `putmsg' and `putpmsg'. */
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#define MSG_HIPRI 0x01 /* Send/receive high priority message. */
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#define MSG_ANY 0x02 /* Receive any message. */
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#define MSG_BAND 0x04 /* Receive message from specified band. */
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/* Values returned by getmsg and getpmsg */
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#define MORECTL 1 /* More control information is left in
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message. */
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#define MOREDATA 2 /* 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; /* UnixWare/Solaris compatibility. */
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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; /* UnixWare/Solaris compatibility. */
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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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char __fill[8]; /* UnixWare/Solaris compatibility */
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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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