github.com/iDigitalFlame/xmt@v0.5.4/device/unix/zsyscall_bsd.go (about)

     1  //go:build darwin || freebsd || netbsd || openbsd
     2  // +build darwin freebsd netbsd openbsd
     3  
     4  // Copyright (C) 2020 - 2023 iDigitalFlame
     5  //
     6  // This program is free software: you can redistribute it and/or modify
     7  // it under the terms of the GNU General Public License as published by
     8  // the Free Software Foundation, either version 3 of the License, or
     9  // any later version.
    10  //
    11  // This program is distributed in the hope that it will be useful,
    12  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  // GNU General Public License for more details.
    15  //
    16  // You should have received a copy of the GNU General Public License
    17  // along with this program.  If not, see <https://www.gnu.org/licenses/>.
    18  //
    19  
    20  package unix
    21  
    22  import (
    23  	_ "syscall"
    24  	_ "unsafe"
    25  )
    26  
    27  type utsName struct {
    28  	Sysname  [256]byte
    29  	Nodename [256]byte
    30  	Release  [256]byte
    31  	Version  [256]byte
    32  	Machine  [256]byte
    33  }
    34  
    35  func uname(u *utsName) error {
    36  	var (
    37  		m = []int32{0x1, 0x1}
    38  		c = uintptr(256)
    39  	)
    40  	if err := sysctl(m, &u.Sysname[0], &c, nil, 0); err != nil {
    41  		return err
    42  	}
    43  	m[1], c = 0xA, 256
    44  	if err := sysctl(m, &u.Nodename[0], &c, nil, 0); err != nil {
    45  		return err
    46  	}
    47  	m[1], c = 0x2, 256
    48  	if err := sysctl(m, &u.Release[0], &c, nil, 0); err != nil {
    49  		return err
    50  	}
    51  	m[1], c = 0x4, 256
    52  	if err := sysctl(m, &u.Version[0], &c, nil, 0); err != nil {
    53  		return err
    54  	}
    55  	m[0], m[1], c = 0x6, 0x1, 256
    56  	if err := sysctl(m, &u.Machine[0], &c, nil, 0); err != nil {
    57  		return err
    58  	}
    59  	for i := range u.Version {
    60  		if u.Version[i] == 0 {
    61  			break
    62  		}
    63  		if u.Version[i] == '\n' || u.Version[i] == '\t' {
    64  			if i == 255 {
    65  				u.Version[i] = 0
    66  				break
    67  			}
    68  			u.Version[i] = ' '
    69  		}
    70  	}
    71  	return nil
    72  }
    73  
    74  //go:linkname sysctl syscall.sysctl
    75  func sysctl(mib []int32, old *byte, oldlen *uintptr, new *byte, newlen uintptr) error