1// Copyright 2009 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5// +build amd64,linux
6
7package unix
8
9//sys Dup2(oldfd int, newfd int) (err error)
10//sysnb EpollCreate(size int) (fd int, err error)
11//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error)
12//sys Fadvise(fd int, offset int64, length int64, advice int) (err error) = SYS_FADVISE64
13//sys Fchown(fd int, uid int, gid int) (err error)
14//sys Fstat(fd int, stat *Stat_t) (err error)
15//sys Fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) = SYS_NEWFSTATAT
16//sys Fstatfs(fd int, buf *Statfs_t) (err error)
17//sys Ftruncate(fd int, length int64) (err error)
18//sysnb Getegid() (egid int)
19//sysnb Geteuid() (euid int)
20//sysnb Getgid() (gid int)
21//sysnb Getrlimit(resource int, rlim *Rlimit) (err error)
22//sysnb Getuid() (uid int)
23//sysnb InotifyInit() (fd int, err error)
24//sys Ioperm(from int, num int, on int) (err error)
25//sys Iopl(level int) (err error)
26//sys Lchown(path string, uid int, gid int) (err error)
27//sys Listen(s int, n int) (err error)
28//sys Lstat(path string, stat *Stat_t) (err error)
29//sys Pause() (err error)
30//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64
31//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64
32//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK
33
34func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) {
35 var ts *Timespec
36 if timeout != nil {
37 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000}
38 }
39 return Pselect(nfd, r, w, e, ts, nil)
40}
41
42//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error)
43//sys Setfsgid(gid int) (err error)
44//sys Setfsuid(uid int) (err error)
45//sysnb Setregid(rgid int, egid int) (err error)
46//sysnb Setresgid(rgid int, egid int, sgid int) (err error)
47//sysnb Setresuid(ruid int, euid int, suid int) (err error)
48//sysnb Setrlimit(resource int, rlim *Rlimit) (err error)
49//sysnb Setreuid(ruid int, euid int) (err error)
50//sys Shutdown(fd int, how int) (err error)
51//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error)
52
53func Stat(path string, stat *Stat_t) (err error) {
54 // Use fstatat, because Android's seccomp policy blocks stat.
55 return Fstatat(AT_FDCWD, path, stat, 0)
56}
57
58//sys Statfs(path string, buf *Statfs_t) (err error)
59//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error)
60//sys Truncate(path string, length int64) (err error)
61//sys Ustat(dev int, ubuf *Ustat_t) (err error)
62//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error)
63//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error)
64//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
65//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error)
66//sysnb getgroups(n int, list *_Gid_t) (nn int, err error)
67//sysnb setgroups(n int, list *_Gid_t) (err error)
68//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error)
69//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error)
70//sysnb socket(domain int, typ int, proto int) (fd int, err error)
71//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error)
72//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
73//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
74//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
75//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
76//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error)
77//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error)
78//sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error)
79
80//sys futimesat(dirfd int, path string, times *[2]Timeval) (err error)
81
82func Gettimeofday(tv *Timeval) (err error) {
83 errno := gettimeofday(tv)
84 if errno != 0 {
85 return errno
86 }
87 return nil
88}
89
90func Time(t *Time_t) (tt Time_t, err error) {
91 var tv Timeval
92 errno := gettimeofday(&tv)
93 if errno != 0 {
94 return 0, errno
95 }
96 if t != nil {
97 *t = Time_t(tv.Sec)
98 }
99 return Time_t(tv.Sec), nil
100}
101
102//sys Utime(path string, buf *Utimbuf) (err error)
103//sys utimes(path string, times *[2]Timeval) (err error)
104
105func setTimespec(sec, nsec int64) Timespec {
106 return Timespec{Sec: sec, Nsec: nsec}
107}
108
109func setTimeval(sec, usec int64) Timeval {
110 return Timeval{Sec: sec, Usec: usec}
111}
112
113//sysnb pipe(p *[2]_C_int) (err error)
114
115func Pipe(p []int) (err error) {
116 if len(p) != 2 {
117 return EINVAL
118 }
119 var pp [2]_C_int
120 err = pipe(&pp)
121 p[0] = int(pp[0])
122 p[1] = int(pp[1])
123 return
124}
125
126//sysnb pipe2(p *[2]_C_int, flags int) (err error)
127
128func Pipe2(p []int, flags int) (err error) {
129 if len(p) != 2 {
130 return EINVAL
131 }
132 var pp [2]_C_int
133 err = pipe2(&pp, flags)
134 p[0] = int(pp[0])
135 p[1] = int(pp[1])
136 return
137}
138
139func (r *PtraceRegs) PC() uint64 { return r.Rip }
140
141func (r *PtraceRegs) SetPC(pc uint64) { r.Rip = pc }
142
143func (iov *Iovec) SetLen(length int) {
144 iov.Len = uint64(length)
145}
146
147func (msghdr *Msghdr) SetControllen(length int) {
148 msghdr.Controllen = uint64(length)
149}
150
151func (cmsg *Cmsghdr) SetLen(length int) {
152 cmsg.Len = uint64(length)
153}
154
155//sys poll(fds *PollFd, nfds int, timeout int) (n int, err error)
156
157func Poll(fds []PollFd, timeout int) (n int, err error) {
158 if len(fds) == 0 {
159 return poll(nil, 0, timeout)
160 }
161 return poll(&fds[0], len(fds), timeout)
162}