* \param size the size of \a buffer
* \param cred the credentials are returned here
*
+ * \return negative on errors, the user id on success.
+ *
* \sa okir's Black Hats Manual
* \sa recvmsg(2)
*/
-int recv_cred_buffer(int fd, char *buf, size_t size, struct ucred *cred)
+int recv_cred_buffer(int fd, char *buf, size_t size)
{
char control[255];
struct msghdr msg;
struct iovec iov;
int result;
int yes = 1;
+ struct ucred cred;
setsockopt(fd, SOL_SOCKET, SO_PASSCRED, &yes, sizeof(int));
memset(&msg, 0, sizeof(msg));
while (cmsg) {
if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type
== SCM_CREDENTIALS) {
- memcpy(cred, CMSG_DATA(cmsg), sizeof(struct ucred));
- result = iov.iov_len;
+ memcpy(&cred, CMSG_DATA(cmsg), sizeof(struct ucred));
+ result = cred.uid;
} else
if (cmsg->cmsg_level == SOL_SOCKET
&& cmsg->cmsg_type == SCM_RIGHTS) {