diff options
author | Slack Coder <slackcoder@server.ky> | 2023-10-18 17:27:00 -0500 |
---|---|---|
committer | Slack Coder <slackcoder@server.ky> | 2023-10-18 17:27:00 -0500 |
commit | 2be3a82f3a801a84c98a4de9c818ce8b0497135b (patch) | |
tree | 9fb89a6b10fddbb1560d895215b445813d3ea28c /vendor/golang.org/x/sys/unix/pledge_openbsd.go | |
parent | 2fda2161877e61e16b7f208ba1f92f650776cbe2 (diff) | |
download | pkgtools-go-todo.tar.xz |
move todos to project roottodo
Diffstat (limited to 'vendor/golang.org/x/sys/unix/pledge_openbsd.go')
-rw-r--r-- | vendor/golang.org/x/sys/unix/pledge_openbsd.go | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/vendor/golang.org/x/sys/unix/pledge_openbsd.go b/vendor/golang.org/x/sys/unix/pledge_openbsd.go deleted file mode 100644 index eb48294..0000000 --- a/vendor/golang.org/x/sys/unix/pledge_openbsd.go +++ /dev/null @@ -1,163 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package unix - -import ( - "errors" - "fmt" - "strconv" - "syscall" - "unsafe" -) - -// Pledge implements the pledge syscall. -// -// The pledge syscall does not accept execpromises on OpenBSD releases -// before 6.3. -// -// execpromises must be empty when Pledge is called on OpenBSD -// releases predating 6.3, otherwise an error will be returned. -// -// For more information see pledge(2). -func Pledge(promises, execpromises string) error { - maj, min, err := majmin() - if err != nil { - return err - } - - err = pledgeAvailable(maj, min, execpromises) - if err != nil { - return err - } - - pptr, err := syscall.BytePtrFromString(promises) - if err != nil { - return err - } - - // This variable will hold either a nil unsafe.Pointer or - // an unsafe.Pointer to a string (execpromises). - var expr unsafe.Pointer - - // If we're running on OpenBSD > 6.2, pass execpromises to the syscall. - if maj > 6 || (maj == 6 && min > 2) { - exptr, err := syscall.BytePtrFromString(execpromises) - if err != nil { - return err - } - expr = unsafe.Pointer(exptr) - } - - _, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(unsafe.Pointer(pptr)), uintptr(expr), 0) - if e != 0 { - return e - } - - return nil -} - -// PledgePromises implements the pledge syscall. -// -// This changes the promises and leaves the execpromises untouched. -// -// For more information see pledge(2). -func PledgePromises(promises string) error { - maj, min, err := majmin() - if err != nil { - return err - } - - err = pledgeAvailable(maj, min, "") - if err != nil { - return err - } - - // This variable holds the execpromises and is always nil. - var expr unsafe.Pointer - - pptr, err := syscall.BytePtrFromString(promises) - if err != nil { - return err - } - - _, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(unsafe.Pointer(pptr)), uintptr(expr), 0) - if e != 0 { - return e - } - - return nil -} - -// PledgeExecpromises implements the pledge syscall. -// -// This changes the execpromises and leaves the promises untouched. -// -// For more information see pledge(2). -func PledgeExecpromises(execpromises string) error { - maj, min, err := majmin() - if err != nil { - return err - } - - err = pledgeAvailable(maj, min, execpromises) - if err != nil { - return err - } - - // This variable holds the promises and is always nil. - var pptr unsafe.Pointer - - exptr, err := syscall.BytePtrFromString(execpromises) - if err != nil { - return err - } - - _, _, e := syscall.Syscall(SYS_PLEDGE, uintptr(pptr), uintptr(unsafe.Pointer(exptr)), 0) - if e != 0 { - return e - } - - return nil -} - -// majmin returns major and minor version number for an OpenBSD system. -func majmin() (major int, minor int, err error) { - var v Utsname - err = Uname(&v) - if err != nil { - return - } - - major, err = strconv.Atoi(string(v.Release[0])) - if err != nil { - err = errors.New("cannot parse major version number returned by uname") - return - } - - minor, err = strconv.Atoi(string(v.Release[2])) - if err != nil { - err = errors.New("cannot parse minor version number returned by uname") - return - } - - return -} - -// pledgeAvailable checks for availability of the pledge(2) syscall -// based on the running OpenBSD version. -func pledgeAvailable(maj, min int, execpromises string) error { - // If OpenBSD <= 5.9, pledge is not available. - if (maj == 5 && min != 9) || maj < 5 { - return fmt.Errorf("pledge syscall is not available on OpenBSD %d.%d", maj, min) - } - - // If OpenBSD <= 6.2 and execpromises is not empty, - // return an error - execpromises is not available before 6.3 - if (maj < 6 || (maj == 6 && min <= 2)) && execpromises != "" { - return fmt.Errorf("cannot use execpromises on OpenBSD %d.%d", maj, min) - } - - return nil -} |