1 | /* ID for functions called via socketcall system call. |
2 | Copyright (C) 1995-2018 Free Software Foundation, Inc. |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | The GNU C Library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Lesser General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Lesser General Public |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #ifndef _SYS_SOCKETCALL_H |
20 | #define _SYS_SOCKETCALL_H 1 |
21 | |
22 | /* Define unique numbers for the operations permitted on socket. Linux |
23 | uses a single system call for all these functions. The relevant code |
24 | file is /usr/include/linux/net.h. |
25 | We cannot use an enum here because the values are used in assembler |
26 | code. */ |
27 | |
28 | #define SOCKOP_invalid -1 |
29 | #define SOCKOP_socket 1 |
30 | #define SOCKOP_bind 2 |
31 | #define SOCKOP_connect 3 |
32 | #define SOCKOP_listen 4 |
33 | #define SOCKOP_accept 5 |
34 | #define SOCKOP_getsockname 6 |
35 | #define SOCKOP_getpeername 7 |
36 | #define SOCKOP_socketpair 8 |
37 | #define SOCKOP_send 9 |
38 | #define SOCKOP_recv 10 |
39 | #define SOCKOP_sendto 11 |
40 | #define SOCKOP_recvfrom 12 |
41 | #define SOCKOP_shutdown 13 |
42 | #define SOCKOP_setsockopt 14 |
43 | #define SOCKOP_getsockopt 15 |
44 | #define SOCKOP_sendmsg 16 |
45 | #define SOCKOP_recvmsg 17 |
46 | #define SOCKOP_accept4 18 |
47 | #define SOCKOP_recvmmsg 19 |
48 | #define SOCKOP_sendmmsg 20 |
49 | |
50 | #define __SOCKETCALL1(name, a1) \ |
51 | INLINE_SYSCALL (socketcall, 2, name, \ |
52 | ((long int [1]) { (long int) (a1) })) |
53 | #define __SOCKETCALL2(name, a1, a2) \ |
54 | INLINE_SYSCALL (socketcall, 2, name, \ |
55 | ((long int [2]) { (long int) (a1), (long int) (a2) })) |
56 | #define __SOCKETCALL3(name, a1, a2, a3) \ |
57 | INLINE_SYSCALL (socketcall, 2, name, \ |
58 | ((long int [3]) { (long int) (a1), (long int) (a2), (long int) (a3) })) |
59 | #define __SOCKETCALL4(name, a1, a2, a3, a4) \ |
60 | INLINE_SYSCALL (socketcall, 2, name, \ |
61 | ((long int [4]) { (long int) (a1), (long int) (a2), (long int) (a3), \ |
62 | (long int) (a4) })) |
63 | #define __SOCKETCALL5(name, a1, a2, a3, a4, a5) \ |
64 | INLINE_SYSCALL (socketcall, 2, name, \ |
65 | ((long int [5]) { (long int) (a1), (long int) (a2), (long int) (a3), \ |
66 | (long int) (a4), (long int) (a5) })) |
67 | #define __SOCKETCALL6(name, a1, a2, a3, a4, a5, a6) \ |
68 | INLINE_SYSCALL (socketcall, 2, name, \ |
69 | ((long int [6]) { (long int) (a1), (long int) (a2), (long int) (a3), \ |
70 | (long int) (a4), (long int) (a5), (long int) (a6) })) |
71 | |
72 | #define __SOCKETCALL_NARGS_X(a,b,c,d,e,f,g,h,n,...) n |
73 | #define __SOCKETCALL_NARGS(...) \ |
74 | __SOCKETCALL_NARGS_X (__VA_ARGS__,7,6,5,4,3,2,1,0,) |
75 | #define __SOCKETCALL_CONCAT_X(a,b) a##b |
76 | #define __SOCKETCALL_CONCAT(a,b) __SOCKETCALL_CONCAT_X (a, b) |
77 | #define __SOCKETCALL_DISP(b,...) \ |
78 | __SOCKETCALL_CONCAT (b,__SOCKETCALL_NARGS(__VA_ARGS__))(__VA_ARGS__) |
79 | |
80 | #define __SOCKETCALL(...) __SOCKETCALL_DISP (__SOCKETCALL, __VA_ARGS__) |
81 | |
82 | |
83 | #define SOCKETCALL(name, args...) \ |
84 | ({ \ |
85 | long int sc_ret = __SOCKETCALL (SOCKOP_##name, args); \ |
86 | sc_ret; \ |
87 | }) |
88 | |
89 | |
90 | #if IS_IN (libc) |
91 | # define __pthread_enable_asynccancel __libc_enable_asynccancel |
92 | # define __pthread_disable_asynccancel __libc_disable_asynccancel |
93 | #endif |
94 | |
95 | #define SOCKETCALL_CANCEL(name, args...) \ |
96 | ({ \ |
97 | int oldtype = LIBC_CANCEL_ASYNC (); \ |
98 | long int sc_ret = __SOCKETCALL (SOCKOP_##name, args); \ |
99 | LIBC_CANCEL_RESET (oldtype); \ |
100 | sc_ret; \ |
101 | }) |
102 | |
103 | |
104 | #endif /* sys/socketcall.h */ |
105 | |