/usr/share/gocode/src/github.com/lxc/lxd/lxd/devlxd_gccgo.go is in golang-github-lxc-lxd-dev 2.0.2-0ubuntu1~16.04.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | // +build gccgo
// +build cgo
package main
import (
"errors"
)
/*
#define _GNU_SOURCE
#include <sys/socket.h>
#include <sys/types.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
void getucred(int sock, uint *uid, uint *gid, int *pid) {
struct ucred peercred;
socklen_t len;
len = sizeof(struct ucred);
if (getsockopt(sock, SOL_SOCKET, SO_PEERCRED, &peercred, &len) != 0 || len != sizeof(peercred)) {
fprintf(stderr, "getsockopt failed: %s\n", strerror(errno));
return;
}
*uid = peercred.uid;
*gid = peercred.gid;
*pid = peercred.pid;
return;
}
*/
import "C"
func getUcred(fd int) (uint32, uint32, int32, error) {
uid := C.uint(0)
gid := C.uint(0)
pid := C.int(-1)
C.getucred(C.int(fd), &uid, &gid, &pid)
if uid == 0 || gid == 0 || pid == -1 {
return 0, 0, -1, errors.New("Failed to get the ucred")
}
return uint32(uid), uint32(gid), int32(pid), nil
}
|