/* 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 */