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tetragon/windows: Port package errmetrics to Windows #3534

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merged 1 commit into from
Mar 25, 2025
Merged

tetragon/windows: Port package errmetrics to Windows #3534

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17 changes: 17 additions & 0 deletions pkg/errmetrics/err_msg_windows.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,17 @@
package errmetrics

import (
"syscall"

"golang.org/x/sys/windows"
)

func GetErrorMessage(err uint16) (message string) {
const flags uint32 = syscall.FORMAT_MESSAGE_FROM_SYSTEM
buf := make([]uint16, 300)
_, error := windows.FormatMessage(flags, 0, uint32(err), 0, buf, nil)
if error != nil {
return "unknown error code "
}
return windows.UTF16ToString(buf[:])
}
18 changes: 18 additions & 0 deletions pkg/errmetrics/err_msg_windows_test.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,18 @@
package errmetrics

import (
"strings"
"syscall"
"testing"

"github.com/stretchr/testify/assert"
)

func TestErrMessage(t *testing.T) {
s1 := GetErrorMessage(uint16(syscall.ERROR_ACCESS_DENIED))
assert.Equal(t, strings.HasPrefix(s1, "Access is denied."), true)

s2 := GetErrorMessage(uint16(syscall.ERROR_INSUFFICIENT_BUFFER))
assert.Equal(t, strings.HasPrefix(s2, "The data area passed to a system call is too small."), true)

}
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