mirror of
https://github.com/beego/bee.git
synced 2024-11-05 01:40:54 +00:00
36 lines
974 B
Go
36 lines
974 B
Go
package debugger
|
|
|
|
import (
|
|
"fmt"
|
|
sys "golang.org/x/sys/unix"
|
|
"io/ioutil"
|
|
"os"
|
|
"syscall"
|
|
)
|
|
|
|
func attachErrorMessage(pid int, err error) error {
|
|
fallbackerr := fmt.Errorf("could not attach to pid %d: %s", pid, err)
|
|
if serr, ok := err.(syscall.Errno); ok {
|
|
switch serr {
|
|
case syscall.EPERM:
|
|
bs, err := ioutil.ReadFile("/proc/sys/kernel/yama/ptrace_scope")
|
|
if err == nil && len(bs) >= 1 && bs[0] != '0' {
|
|
// Yama documentation: https://www.kernel.org/doc/Documentation/security/Yama.txt
|
|
return fmt.Errorf("Could not attach to pid %d: set /proc/sys/kernel/yama/ptrace_scope to 0", pid)
|
|
}
|
|
fi, err := os.Stat(fmt.Sprintf("/proc/%d", pid))
|
|
if err != nil {
|
|
return fallbackerr
|
|
}
|
|
if fi.Sys().(*syscall.Stat_t).Uid != uint32(os.Getuid()) {
|
|
return fmt.Errorf("Could not attach to pid %d: current user does not own the process", pid)
|
|
}
|
|
}
|
|
}
|
|
return fallbackerr
|
|
}
|
|
|
|
func stopProcess(pid int) error {
|
|
return sys.Kill(pid, sys.SIGSTOP)
|
|
}
|