// Returns the User struct for a particular login name.
func FindUser(name string) ([]User, error) {
pwent, err := C.getpwnam(C.CString(name))
if pwent == nil {
return []User{}, err
}
return []User{pwentToUser(pwent)}, nil
}
// Getpwnam searches the user database for an entry with a matching name.
func Getpwnam(name string) *Passwd {
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
cpw := C.getpwnam(cname)
if cpw == nil {
return nil
}
return cpasswd2go(cpw)
}
func Getpwnam(name string) *Passwd {
cname := C.CString(name)
defer C.free(unsafe.Pointer(cname))
cpw := C.getpwnam(cname)
return &Passwd{
Uid: uint32(cpw.pw_uid),
Gid: uint32(cpw.pw_gid),
Dir: C.GoString(cpw.pw_dir),
Shell: C.GoString(cpw.pw_shell),
}
}
func DropPrivileges(name string) {
cname := C.CString(name)
home := C.CString("HOME")
slash := C.CString("/")
defer C.cfree(unsafe.Pointer(home))
defer C.cfree(unsafe.Pointer(cname))
defer C.cfree(unsafe.Pointer(slash))
cpw := C.getpwnam(cname)
C.setgid(cpw.pw_gid)
C.setuid(cpw.pw_uid)
C.setenv(home, cpw.pw_dir, 1)
C.setsid()
C.chdir(slash)
C.umask(022)
}