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shadow.go
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/
shadow.go
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package shadowbins
import (
"log"
"net/rpc"
"os"
"path/filepath"
"strconv"
)
type Command struct {
Bin string
Args []string
Identifier string
}
func buildCommadFromArgs() Command {
c := Command{}
c.Bin = os.Args[1]
args := os.Args[2:len(os.Args)]
for _, arg := range args {
c.Args = append(c.Args, resolveFilePathInArg(arg))
}
return c
}
func resolveFilePathInArg(arg string) string {
path, err := filepath.Abs(arg)
if err != nil {
log.Fatal("Failed to resolve path", err)
}
if _, err := os.Stat(path); os.IsNotExist(err) {
// this argument is not a file path
return arg
}
return path
}
func CallRemoteCommand() {
conf := readConfig()
addr := "127.0.0.1:" + strconv.Itoa(conf.Hyper.Port)
client, err := rpc.Dial("tcp", addr)
if err != nil {
log.Fatal("Dialing:", err)
}
c := buildCommadFromArgs()
c.Identifier = conf.ShadowIdentifier
var reply int
err = client.Call("Launcher.Launch", c, &reply)
if err != nil {
log.Fatal("Launch error:", err)
}
}