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unix: add Uname on FreeBSD

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FreeBSD doesn't have a uname syscall but the information can be
retrieved using sysctls the same way as on Darwin.

Change-Id: I824c42490d1feed3f1ad3823427c01dd3e5ea3c1
Reviewed-on: https://go-review.googlesource.com/79918
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Tobias Klauser
2017-11-27 08:53:11 +00:00
committed by Tobias Klauser
parent 4ff8c001ce
commit 096928d58b
9 changed files with 106 additions and 0 deletions
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46
unix/syscall_freebsd.go
View File

@@ -396,6 +396,52 @@ func IoctlGetTermios(fd int, req uint) (*Termios, error) {
return &value, err
}
func Uname(uname *Utsname) error {
mib := []_C_int{CTL_KERN, KERN_OSTYPE}
n := unsafe.Sizeof(uname.Sysname)
if err := sysctl(mib, &uname.Sysname[0], &n, nil, 0); err != nil {
return err
}
mib = []_C_int{CTL_KERN, KERN_HOSTNAME}
n = unsafe.Sizeof(uname.Nodename)
if err := sysctl(mib, &uname.Nodename[0], &n, nil, 0); err != nil {
return err
}
mib = []_C_int{CTL_KERN, KERN_OSRELEASE}
n = unsafe.Sizeof(uname.Release)
if err := sysctl(mib, &uname.Release[0], &n, nil, 0); err != nil {
return err
}
mib = []_C_int{CTL_KERN, KERN_VERSION}
n = unsafe.Sizeof(uname.Version)
if err := sysctl(mib, &uname.Version[0], &n, nil, 0); err != nil {
return err
}
// The version might have newlines or tabs in it, convert them to
// spaces.
for i, b := range uname.Version {
if b == '\n' || b == '\t' {
if i == len(uname.Version)-1 {
uname.Version[i] = 0
} else {
uname.Version[i] = ' '
}
}
}
mib = []_C_int{CTL_HW, HW_MACHINE}
n = unsafe.Sizeof(uname.Machine)
if err := sysctl(mib, &uname.Machine[0], &n, nil, 0); err != nil {
return err
}
return nil
}
/*
* Exposed directly
*/

10
unix/syscall_freebsd_test.go
View File

@@ -295,3 +295,13 @@ func TestCapRightsSetAndClear(t *testing.T) {
t.Fatalf("Wrong rights set")
}
}
func TestUname(t *testing.T) {
var utsname unix.Utsname
err := unix.Uname(&utsname)
if err != nil {
t.Fatalf("Uname: %v", err)
}
t.Logf("OS: %s/%s %s", utsname.Sysname[:], utsname.Machine[:], utsname.Release[:])
}

5
unix/types_freebsd.go
View File

@@ -36,6 +36,7 @@ package unix
#include <sys/time.h>
#include <sys/types.h>
#include <sys/un.h>
#include <sys/utsname.h>
#include <sys/wait.h>
#include <net/bpf.h>
#include <net/if.h>
@@ -389,3 +390,7 @@ const (
// Capabilities
type CapRights C.struct_cap_rights
// Uname
type Utsname C.struct_utsname

7
unix/zerrors_freebsd_386.go
View File

@@ -351,6 +351,8 @@ const (
CSTOP = 0x13
CSTOPB = 0x400
CSUSP = 0x1a
CTL_HW = 0x6
CTL_KERN = 0x1
CTL_MAXNAME = 0x18
CTL_NET = 0x4
DLT_A429 = 0xb8
@@ -608,6 +610,7 @@ const (
F_UNLCKSYS = 0x4
F_WRLCK = 0x3
HUPCL = 0x4000
HW_MACHINE = 0x1
ICANON = 0x100
ICMP6_FILTER = 0x12
ICRNL = 0x100
@@ -944,6 +947,10 @@ const (
IXANY = 0x800
IXOFF = 0x400
IXON = 0x200
KERN_HOSTNAME = 0xa
KERN_OSRELEASE = 0x2
KERN_OSTYPE = 0x1
KERN_VERSION = 0x4
LOCK_EX = 0x2
LOCK_NB = 0x4
LOCK_SH = 0x1

7
unix/zerrors_freebsd_amd64.go
View File

@@ -351,6 +351,8 @@ const (
CSTOP = 0x13
CSTOPB = 0x400
CSUSP = 0x1a
CTL_HW = 0x6
CTL_KERN = 0x1
CTL_MAXNAME = 0x18
CTL_NET = 0x4
DLT_A429 = 0xb8
@@ -608,6 +610,7 @@ const (
F_UNLCKSYS = 0x4
F_WRLCK = 0x3
HUPCL = 0x4000
HW_MACHINE = 0x1
ICANON = 0x100
ICMP6_FILTER = 0x12
ICRNL = 0x100
@@ -944,6 +947,10 @@ const (
IXANY = 0x800
IXOFF = 0x400
IXON = 0x200
KERN_HOSTNAME = 0xa
KERN_OSRELEASE = 0x2
KERN_OSTYPE = 0x1
KERN_VERSION = 0x4
LOCK_EX = 0x2
LOCK_NB = 0x4
LOCK_SH = 0x1

7
unix/zerrors_freebsd_arm.go
View File

@@ -351,6 +351,8 @@ const (
CSTOP = 0x13
CSTOPB = 0x400
CSUSP = 0x1a
CTL_HW = 0x6
CTL_KERN = 0x1
CTL_MAXNAME = 0x18
CTL_NET = 0x4
DLT_A429 = 0xb8
@@ -615,6 +617,7 @@ const (
F_UNLCKSYS = 0x4
F_WRLCK = 0x3
HUPCL = 0x4000
HW_MACHINE = 0x1
ICANON = 0x100
ICMP6_FILTER = 0x12
ICRNL = 0x100
@@ -951,6 +954,10 @@ const (
IXANY = 0x800
IXOFF = 0x400
IXON = 0x200
KERN_HOSTNAME = 0xa
KERN_OSRELEASE = 0x2
KERN_OSTYPE = 0x1
KERN_VERSION = 0x4
LOCK_EX = 0x2
LOCK_NB = 0x4
LOCK_SH = 0x1

8
unix/ztypes_freebsd_386.go
View File

@@ -539,3 +539,11 @@ const (
type CapRights struct {
Rights [2]uint64
}
type Utsname struct {
Sysname [256]byte
Nodename [256]byte
Release [256]byte
Version [256]byte
Machine [256]byte
}

8
unix/ztypes_freebsd_amd64.go
View File

@@ -542,3 +542,11 @@ const (
type CapRights struct {
Rights [2]uint64
}
type Utsname struct {
Sysname [256]byte
Nodename [256]byte
Release [256]byte
Version [256]byte
Machine [256]byte
}

8
unix/ztypes_freebsd_arm.go
View File

@@ -542,3 +542,11 @@ const (
type CapRights struct {
Rights [2]uint64
}
type Utsname struct {
Sysname [256]byte
Nodename [256]byte
Release [256]byte
Version [256]byte
Machine [256]byte
}