* sysdeps/s390/s390-32/elf/start.S: Replace pc relative relocation
[glibc.git] / bits / stropts.h
blobc8e2c2c034560193b573bd17f49a06acd84ea210
1 /* Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17 02111-1307 USA. */
19 #ifndef _STROPTS_H
20 # error "Never include <bits/stropts.h> directly; use <stropts.h> instead."
21 #endif
23 #ifndef _BITS_STROPTS_H
24 #define _BITS_STROPTS_H 1
26 #include <bits/types.h>
28 /* Macros used as `request' argument to `ioctl'. */
29 #define __SID ('S' << 8)
31 #define I_NREAD (__SID | 1) /* Counts the number of data bytes in the data
32 block in the first message. */
33 #define I_PUSH (__SID | 2) /* Push STREAMS module onto top of the current
34 STREAM, just below the STREAM head. */
35 #define I_POP (__SID | 3) /* Remove STREAMS module from just below the
36 STREAM head. */
37 #define I_LOOK (__SID | 4) /* Retrieve the name of the module just below
38 the STREAM head and place it in a character
39 string. */
40 #define I_FLUSH (__SID | 5) /* Flush all input and/or output. */
41 #define I_SRDOPT (__SID | 6) /* Sets the read mode. */
42 #define I_GRDOPT (__SID | 7) /* Returns the current read mode setting. */
43 #define I_STR (__SID | 8) /* Construct an internal STREAMS `ioctl'
44 message and send that message downstream. */
45 #define I_SETSIG (__SID | 9) /* Inform the STREAM head that the process
46 wants the SIGPOLL signal issued. */
47 #define I_GETSIG (__SID |10) /* Return the events for which the calling
48 process is currently registered to be sent
49 a SIGPOLL signal. */
50 #define I_FIND (__SID |11) /* Compares the names of all modules currently
51 present in the STREAM to the name pointed to
52 by `arg'. */
53 #define I_LINK (__SID |12) /* Connect two STREAMs. */
54 #define I_UNLINK (__SID |13) /* Disconnects the two STREAMs. */
55 #define I_PEEK (__SID |15) /* Allows a process to retrieve the information
56 in the first message on the STREAM head read
57 queue without taking the message off the
58 queue. */
59 #define I_FDINSERT (__SID |16) /* Create a message from the specified
60 buffer(s), adds information about another
61 STREAM, and send the message downstream. */
62 #define I_SENDFD (__SID |17) /* Requests the STREAM associated with `fildes'
63 to send a message, containing a file
64 pointer, to the STREAM head at the other end
65 of a STREAMS pipe. */
66 #define I_RECVFD (__SID |14) /* Non-EFT definition. */
67 #define I_SWROPT (__SID |19) /* Set the write mode. */
68 #define I_GWROPT (__SID |20) /* Return the current write mode setting. */
69 #define I_LIST (__SID |21) /* List all the module names on the STREAM, up
70 to and including the topmost driver name. */
71 #define I_PLINK (__SID |22) /* Connect two STREAMs with a persistent
72 link. */
73 #define I_PUNLINK (__SID |23) /* Disconnect the two STREAMs that were
74 connected with a persistent link. */
75 #define I_FLUSHBAND (__SID |28) /* Flush only band specified. */
76 #define I_CKBAND (__SID |29) /* Check if the message of a given priority
77 band exists on the STREAM head read
78 queue. */
79 #define I_GETBAND (__SID |30) /* Return the priority band of the first
80 message on the STREAM head read queue. */
81 #define I_ATMARK (__SID |31) /* See if the current message on the STREAM
82 head read queue is "marked" by some module
83 downstream. */
84 #define I_SETCLTIME (__SID |32) /* Set the time the STREAM head will delay when
85 a STREAM is closing and there is data on
86 the write queues. */
87 #define I_GETCLTIME (__SID |33) /* Get current value for closing timeout. */
88 #define I_CANPUT (__SID |34) /* Check if a certain band is writable. */
91 /* Used in `I_LOOK' request. */
92 #define FMNAMESZ 8 /* compatibility w/UnixWare/Solaris. */
94 /* Flush options. */
95 #define FLUSHR 0x01 /* Flush read queues. */
96 #define FLUSHW 0x02 /* Flush write queues. */
97 #define FLUSHRW 0x03 /* Flush read and write queues. */
98 #ifdef __USE_GNU
99 # define FLUSHBAND 0x04 /* Flush only specified band. */
100 #endif
102 /* Possible arguments for `I_SETSIG'. */
103 #define S_INPUT 0x0001 /* A message, other than a high-priority
104 message, has arrived. */
105 #define S_HIPRI 0x0002 /* A high-priority message is present. */
106 #define S_OUTPUT 0x0004 /* The write queue for normal data is no longer
107 full. */
108 #define S_MSG 0x0008 /* A STREAMS signal message that contains the
109 SIGPOLL signal reaches the front of the
110 STREAM head read queue. */
111 #define S_ERROR 0x0010 /* Notification of an error condition. */
112 #define S_HANGUP 0x0020 /* Notification of a hangup. */
113 #define S_RDNORM 0x0040 /* A normal message has arrived. */
114 #define S_WRNORM S_OUTPUT
115 #define S_RDBAND 0x0080 /* A message with a non-zero priority has
116 arrived. */
117 #define S_WRBAND 0x0100 /* The write queue for a non-zero priority
118 band is no longer full. */
119 #define S_BANDURG 0x0200 /* When used in conjunction with S_RDBAND,
120 SIGURG is generated instead of SIGPOLL when
121 a priority message reaches the front of the
122 STREAM head read queue. */
124 /* Option for `I_PEEK'. */
125 #define RS_HIPRI 0x01 /* Only look for high-priority messages. */
127 /* Options for `I_SRDOPT'. */
128 #define RNORM 0x0000 /* Byte-STREAM mode, the default. */
129 #define RMSGD 0x0001 /* Message-discard mode. */
130 #define RMSGN 0x0002 /* Message-nondiscard mode. */
131 #define RPROTDAT 0x0004 /* Deliver the control part of a message as
132 data. */
133 #define RPROTDIS 0x0008 /* Discard the control part of a message,
134 delivering any data part. */
135 #define RPROTNORM 0x0010 /* Fail `read' with EBADMSG if a message
136 containing a control part is at the front
137 of the STREAM head read queue. */
138 #ifdef __USE_GNU
139 # define RPROTMASK 0x001C /* The RPROT bits */
140 #endif
142 /* Possible mode for `I_SWROPT'. */
143 #define SNDZERO 0x001 /* Send a zero-length message downstream when a
144 `write' of 0 bytes occurs. */
145 #ifdef __USE_GNU
146 # define SNDPIPE 0x002 /* Send SIGPIPE on write and putmsg if
147 sd_werror is set. */
148 #endif
150 /* Arguments for `I_ATMARK'. */
151 #define ANYMARK 0x01 /* Check if the message is marked. */
152 #define LASTMARK 0x02 /* Check if the message is the last one marked
153 on the queue. */
155 /* Argument for `I_UNLINK'. */
156 #ifdef __USE_GNU
157 # define MUXID_ALL (-1) /* Unlink all STREAMs linked to the STREAM
158 associated with `fildes'. */
159 #endif
162 /* Macros for `getmsg', `getpmsg', `putmsg' and `putpmsg'. */
163 #define MSG_HIPRI 0x01 /* Send/receive high priority message. */
164 #define MSG_ANY 0x02 /* Receive any message. */
165 #define MSG_BAND 0x04 /* Receive message from specified band. */
167 /* Values returned by getmsg and getpmsg */
168 #define MORECTL 1 /* More control information is left in
169 message. */
170 #define MOREDATA 2 /* More data is left in message. */
173 /* Structure used for the I_FLUSHBAND ioctl on streams. */
174 struct bandinfo
176 unsigned char bi_pri;
177 int bi_flag;
180 struct strbuf
182 int maxlen; /* Maximum buffer length. */
183 int len; /* Length of data. */
184 char *buf; /* Pointer to buffer. */
187 struct strpeek
189 struct strbuf ctlbuf;
190 struct strbuf databuf;
191 t_uscalar_t flags; /* UnixWare/Solaris compatibility. */
194 struct strfdinsert
196 struct strbuf ctlbuf;
197 struct strbuf databuf;
198 t_uscalar_t flags; /* UnixWare/Solaris compatibility. */
199 int fildes;
200 int offset;
203 struct strioctl
205 int ic_cmd;
206 int ic_timout;
207 int ic_len;
208 char *ic_dp;
211 struct strrecvfd
213 int fd;
214 uid_t uid;
215 gid_t gid;
216 char __fill[8]; /* UnixWare/Solaris compatibility */
220 struct str_mlist
222 char l_name[FMNAMESZ + 1];
225 struct str_list
227 int sl_nmods;
228 struct str_mlist *sl_modlist;
231 #endif /* bits/stropts.h */