Source file
src/os/executable_sysctl.go
1
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6
7 package os
8
9 import (
10 "syscall"
11 "unsafe"
12 )
13
14 func executable() (string, error) {
15 n := uintptr(0)
16
17 _, _, err := syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(unsafe.Pointer(&executableMIB[0])), 4, 0, uintptr(unsafe.Pointer(&n)), 0, 0)
18 if err != 0 {
19 return "", err
20 }
21 if n == 0 {
22 return "", nil
23 }
24 buf := make([]byte, n)
25 _, _, err = syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(unsafe.Pointer(&executableMIB[0])), 4, uintptr(unsafe.Pointer(&buf[0])), uintptr(unsafe.Pointer(&n)), 0, 0)
26 if err != 0 {
27 return "", err
28 }
29 if n == 0 {
30 return "", nil
31 }
32 return string(buf[:n-1]), nil
33 }
34
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