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authorGibheer <gibheer+git@zero-knowledge.org>2024-09-05 19:38:25 +0200
committerGibheer <gibheer+git@zero-knowledge.org>2024-09-05 19:38:25 +0200
commit6ea4d2c82de80efc87708e5e182034b7c6c2019e (patch)
tree35c0856a929040216c82153ca62d43b27530a887 /vendor/golang.org/x/sys/unix/pledge_openbsd.go
parent6f64eeace1b66639b9380b44e88a8d54850a4306 (diff)
switch from github.com/lib/pq to github.com/jackc/pgx/v5HEAD20240905master
lib/pq is out of maintenance for some time now, so switch to the newer more active library. Looks like it finally stabilized after a long time.
Diffstat (limited to 'vendor/golang.org/x/sys/unix/pledge_openbsd.go')
-rw-r--r--vendor/golang.org/x/sys/unix/pledge_openbsd.go92
1 files changed, 20 insertions, 72 deletions
diff --git a/vendor/golang.org/x/sys/unix/pledge_openbsd.go b/vendor/golang.org/x/sys/unix/pledge_openbsd.go
index eb48294..6a09af5 100644
--- a/vendor/golang.org/x/sys/unix/pledge_openbsd.go
+++ b/vendor/golang.org/x/sys/unix/pledge_openbsd.go
@@ -8,54 +8,31 @@ 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.
+// This changes both the promises and execpromises; use PledgePromises or
+// PledgeExecpromises to only change the promises or execpromises
+// respectively.
//
// For more information see pledge(2).
func Pledge(promises, execpromises string) error {
- maj, min, err := majmin()
- if err != nil {
+ if err := pledgeAvailable(); err != nil {
return err
}
- err = pledgeAvailable(maj, min, execpromises)
+ pptr, err := BytePtrFromString(promises)
if err != nil {
return err
}
- pptr, err := syscall.BytePtrFromString(promises)
+ exptr, err := BytePtrFromString(execpromises)
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
+ return pledge(pptr, exptr)
}
// PledgePromises implements the pledge syscall.
@@ -64,30 +41,16 @@ func Pledge(promises, execpromises string) error {
//
// 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 {
+ if err := pledgeAvailable(); err != nil {
return err
}
- // This variable holds the execpromises and is always nil.
- var expr unsafe.Pointer
-
- pptr, err := syscall.BytePtrFromString(promises)
+ pptr, err := 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
+ return pledge(pptr, nil)
}
// PledgeExecpromises implements the pledge syscall.
@@ -96,30 +59,16 @@ func PledgePromises(promises string) error {
//
// For more information see pledge(2).
func PledgeExecpromises(execpromises string) error {
- maj, min, err := majmin()
- if err != nil {
+ if err := pledgeAvailable(); err != nil {
return err
}
- err = pledgeAvailable(maj, min, execpromises)
+ exptr, err := BytePtrFromString(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
+ return pledge(nil, exptr)
}
// majmin returns major and minor version number for an OpenBSD system.
@@ -147,16 +96,15 @@ func majmin() (major int, minor int, err error) {
// 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)
+func pledgeAvailable() error {
+ maj, min, err := majmin()
+ if err != nil {
+ return err
}
- // 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)
+ // Require OpenBSD 6.4 as a minimum.
+ if maj < 6 || (maj == 6 && min <= 3) {
+ return fmt.Errorf("cannot call Pledge on OpenBSD %d.%d", maj, min)
}
return nil