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Diffstat (limited to 'bits/stropts.h')
| -rw-r--r-- | bits/stropts.h | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/bits/stropts.h b/bits/stropts.h new file mode 100644 index 0000000000..026df21a48 --- /dev/null +++ b/bits/stropts.h @@ -0,0 +1,211 @@ +/* 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 */ |