kernel_version_solaris_test.go

Documentation: internal/syscall/unix

     1  // Copyright 2024 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  //go:build solaris
     6  
     7  package unix_test
     8  
     9  import (
    10  	"internal/syscall/unix"
    11  	"runtime"
    12  	"syscall"
    13  	"testing"
    14  )
    15  
    16  func TestSupportSockNonblockCloexec(t *testing.T) {
    17  	// Test that SupportSockNonblockCloexec returns true if socket succeeds with SOCK_NONBLOCK and SOCK_CLOEXEC.
    18  	s, err := syscall.Socket(syscall.AF_INET, syscall.SOCK_STREAM|syscall.SOCK_NONBLOCK|syscall.SOCK_CLOEXEC, 0)
    19  	if err == nil {
    20  		syscall.Close(s)
    21  	}
    22  	wantSock := err != syscall.EPROTONOSUPPORT && err != syscall.EINVAL
    23  	gotSock := unix.SupportSockNonblockCloexec()
    24  	if wantSock != gotSock {
    25  		t.Fatalf("SupportSockNonblockCloexec, got %t; want %t", gotSock, wantSock)
    26  	}
    27  
    28  	// Test that SupportAccept4 returns true if accept4 is available.
    29  	for {
    30  		_, _, err = syscall.Accept4(0, syscall.SOCK_NONBLOCK|syscall.SOCK_CLOEXEC)
    31  		if err != syscall.EINTR {
    32  			break
    33  		}
    34  	}
    35  	wantAccept4 := err != syscall.ENOSYS
    36  	gotAccept4 := unix.SupportAccept4()
    37  	if wantAccept4 != gotAccept4 {
    38  		t.Fatalf("SupportAccept4, got %t; want %t", gotAccept4, wantAccept4)
    39  	}
    40  
    41  	// Test that the version returned by KernelVersion matches expectations.
    42  	major, minor := unix.KernelVersion()
    43  	t.Logf("Kernel version: %d.%d", major, minor)
    44  	if runtime.GOOS == "illumos" {
    45  		if gotSock && gotAccept4 && (major < 5 || (major == 5 && minor < 11)) {
    46  			t.Fatalf("SupportSockNonblockCloexec and SupportAccept4 are true, but kernel version is older than 5.11, SunOS version: %d.%d", major, minor)
    47  		}
    48  		if !gotSock && !gotAccept4 && (major > 5 || (major == 5 && minor >= 11)) {
    49  			t.Errorf("SupportSockNonblockCloexec and SupportAccept4 are false, but kernel version is 5.11 or newer, SunOS version: %d.%d", major, minor)
    50  		}
    51  	} else { // Solaris
    52  		if gotSock && gotAccept4 && (major < 11 || (major == 11 && minor < 4)) {
    53  			t.Fatalf("SupportSockNonblockCloexec and SupportAccept4 are true, but kernel version is older than 11.4, Solaris version: %d.%d", major, minor)
    54  		}
    55  		if !gotSock && !gotAccept4 && (major > 11 || (major == 11 && minor >= 4)) {
    56  			t.Errorf("SupportSockNonblockCloexec and SupportAccept4 are false, but kernel version is 11.4 or newer, Solaris version: %d.%d", major, minor)
    57  		}
    58  	}
    59  }
    60
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