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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 1998-2009. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
#include <string.h>
#include "eidef.h"
#include "eiext.h"
#include "putget.h"
int ei_decode_pid(const char *buf, int *index, erlang_pid *p)
{
const char *s = buf + *index;
const char *s0 = s;
int len;
if (get8(s) != ERL_PID_EXT) return -1;
/* first the nodename */
if (get8(s) != ERL_ATOM_EXT) return -1;
len = get16be(s);
if (len > MAXATOMLEN) return -1;
if (p) {
memmove(p->node, s, len);
p->node[len] = (char)0;
}
s += len;
/* now the numbers: num (4), serial (4), creation (1) */
if (p) {
p->num = get32be(s) & 0x7fff; /* 15 bits */
p->serial = get32be(s) & 0x1fff; /* 13 bits */
p->creation = get8(s) & 0x03; /* 2 bits */
}
else s+= 9;
*index += s-s0;
return 0;
}
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