1// Copyright 2019 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 5package syscall 6 7import "unsafe" 8 9const ( 10 _SYS_dup = SYS_DUP3 11 _SYS_setgroups = SYS_SETGROUPS 12) 13 14func EpollCreate(size int) (fd int, err error) { 15 if size <= 0 { 16 return -1, EINVAL 17 } 18 return EpollCreate1(0) 19} 20 21//sys EpollWait(epfd int, events []EpollEvent, msec int) (n int, err error) = SYS_EPOLL_PWAIT 22//sys Fchown(fd int, uid int, gid int) (err error) 23//sys Fstat(fd int, stat *Stat_t) (err error) 24//sys Fstatat(fd int, path string, stat *Stat_t, flags int) (err error) 25//sys fstatat(dirfd int, path string, stat *Stat_t, flags int) (err error) 26//sys Fstatfs(fd int, buf *Statfs_t) (err error) 27//sys Ftruncate(fd int, length int64) (err error) 28//sysnb Getegid() (egid int) 29//sysnb Geteuid() (euid int) 30//sysnb Getgid() (gid int) 31//sysnb Getrlimit(resource int, rlim *Rlimit) (err error) 32//sysnb Getuid() (uid int) 33//sys Listen(s int, n int) (err error) 34//sys Pread(fd int, p []byte, offset int64) (n int, err error) = SYS_PREAD64 35//sys Pwrite(fd int, p []byte, offset int64) (n int, err error) = SYS_PWRITE64 36//sys renameat2(olddirfd int, oldpath string, newdirfd int, newpath string, flags uint) (err error) 37//sys Seek(fd int, offset int64, whence int) (off int64, err error) = SYS_LSEEK 38//sys sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) 39//sys Setfsgid(gid int) (err error) 40//sys Setfsuid(uid int) (err error) 41//sysnb Setregid(rgid int, egid int) (err error) 42//sysnb Setresgid(rgid int, egid int, sgid int) (err error) 43//sysnb Setresuid(ruid int, euid int, suid int) (err error) 44//sysnb Setrlimit(resource int, rlim *Rlimit) (err error) 45//sysnb Setreuid(ruid int, euid int) (err error) 46//sys Shutdown(fd int, how int) (err error) 47//sys Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) 48 49func Renameat(olddirfd int, oldpath string, newdirfd int, newpath string) (err error) { 50 return renameat2(olddirfd, oldpath, newdirfd, newpath, 0) 51} 52 53func Stat(path string, stat *Stat_t) (err error) { 54 return Fstatat(_AT_FDCWD, path, stat, 0) 55} 56 57func Lchown(path string, uid int, gid int) (err error) { 58 return Fchownat(_AT_FDCWD, path, uid, gid, _AT_SYMLINK_NOFOLLOW) 59} 60 61func Lstat(path string, stat *Stat_t) (err error) { 62 return Fstatat(_AT_FDCWD, path, stat, _AT_SYMLINK_NOFOLLOW) 63} 64 65//sys Statfs(path string, buf *Statfs_t) (err error) 66//sys SyncFileRange(fd int, off int64, n int64, flags int) (err error) 67//sys Truncate(path string, length int64) (err error) 68//sys accept(s int, rsa *RawSockaddrAny, addrlen *_Socklen) (fd int, err error) 69//sys accept4(s int, rsa *RawSockaddrAny, addrlen *_Socklen, flags int) (fd int, err error) 70//sys bind(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 71//sys connect(s int, addr unsafe.Pointer, addrlen _Socklen) (err error) 72//sysnb getgroups(n int, list *_Gid_t) (nn int, err error) 73//sysnb setgroups(n int, list *_Gid_t) (err error) 74//sys getsockopt(s int, level int, name int, val unsafe.Pointer, vallen *_Socklen) (err error) 75//sys setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) 76//sysnb socket(domain int, typ int, proto int) (fd int, err error) 77//sysnb socketpair(domain int, typ int, proto int, fd *[2]int32) (err error) 78//sysnb getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 79//sysnb getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error) 80//sys recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) 81//sys sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error) 82//sys recvmsg(s int, msg *Msghdr, flags int) (n int, err error) 83//sys sendmsg(s int, msg *Msghdr, flags int) (n int, err error) 84//sys mmap(addr uintptr, length uintptr, prot int, flags int, fd int, offset int64) (xaddr uintptr, err error) 85 86type sigset_t struct { 87 X__val [16]uint64 88} 89 90//sys pselect(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timespec, sigmask *sigset_t) (n int, err error) = SYS_PSELECT6 91 92func Select(nfd int, r *FdSet, w *FdSet, e *FdSet, timeout *Timeval) (n int, err error) { 93 var ts *Timespec 94 if timeout != nil { 95 ts = &Timespec{Sec: timeout.Sec, Nsec: timeout.Usec * 1000} 96 } 97 return pselect(nfd, r, w, e, ts, nil) 98} 99 100//sysnb Gettimeofday(tv *Timeval) (err error) 101 102func setTimespec(sec, nsec int64) Timespec { 103 return Timespec{Sec: sec, Nsec: nsec} 104} 105 106func setTimeval(sec, usec int64) Timeval { 107 return Timeval{Sec: sec, Usec: usec} 108} 109 110func futimesat(dirfd int, path string, tv *[2]Timeval) (err error) { 111 if tv == nil { 112 return utimensat(dirfd, path, nil, 0) 113 } 114 115 ts := []Timespec{ 116 NsecToTimespec(TimevalToNsec(tv[0])), 117 NsecToTimespec(TimevalToNsec(tv[1])), 118 } 119 return utimensat(dirfd, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) 120} 121 122func Time(t *Time_t) (Time_t, error) { 123 var tv Timeval 124 err := Gettimeofday(&tv) 125 if err != nil { 126 return 0, err 127 } 128 if t != nil { 129 *t = Time_t(tv.Sec) 130 } 131 return Time_t(tv.Sec), nil 132} 133 134func Utime(path string, buf *Utimbuf) error { 135 tv := []Timeval{ 136 {Sec: buf.Actime}, 137 {Sec: buf.Modtime}, 138 } 139 return Utimes(path, tv) 140} 141 142func utimes(path string, tv *[2]Timeval) (err error) { 143 if tv == nil { 144 return utimensat(_AT_FDCWD, path, nil, 0) 145 } 146 147 ts := []Timespec{ 148 NsecToTimespec(TimevalToNsec(tv[0])), 149 NsecToTimespec(TimevalToNsec(tv[1])), 150 } 151 return utimensat(_AT_FDCWD, path, (*[2]Timespec)(unsafe.Pointer(&ts[0])), 0) 152} 153 154func Pipe(p []int) (err error) { 155 if len(p) != 2 { 156 return EINVAL 157 } 158 var pp [2]_C_int 159 err = pipe2(&pp, 0) 160 p[0] = int(pp[0]) 161 p[1] = int(pp[1]) 162 return 163} 164 165//sysnb pipe2(p *[2]_C_int, flags int) (err error) 166 167func Pipe2(p []int, flags int) (err error) { 168 if len(p) != 2 { 169 return EINVAL 170 } 171 var pp [2]_C_int 172 err = pipe2(&pp, flags) 173 p[0] = int(pp[0]) 174 p[1] = int(pp[1]) 175 return 176} 177 178func (r *PtraceRegs) PC() uint64 { return r.Pc } 179 180func (r *PtraceRegs) SetPC(pc uint64) { r.Pc = pc } 181 182func (iov *Iovec) SetLen(length int) { 183 iov.Len = uint64(length) 184} 185 186func (msghdr *Msghdr) SetControllen(length int) { 187 msghdr.Controllen = uint64(length) 188} 189 190func (cmsg *Cmsghdr) SetLen(length int) { 191 cmsg.Len = uint64(length) 192} 193 194func InotifyInit() (fd int, err error) { 195 return InotifyInit1(0) 196} 197 198//sys ppoll(fds *pollFd, nfds int, timeout *Timespec, sigmask *sigset_t) (n int, err error) 199 200func Pause() error { 201 _, err := ppoll(nil, 0, nil, nil) 202 return err 203} 204 205func rawVforkSyscall(trap, a1 uintptr) (r1 uintptr, err Errno) { 206 panic("not implemented") 207} 208