| /* 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 */ |