15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright (c) 2003, 2004 Niels Provos <provos@citi.umich.edu> 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * All rights reserved. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Redistribution and use in source and binary forms, with or without 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * modification, are permitted provided that the following conditions 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * are met: 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 1. Redistributions of source code must retain the above copyright 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 2. Redistributions in binary form must reproduce the above copyright 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * notice, this list of conditions and the following disclaimer in the 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * documentation and/or other materials provided with the distribution. 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 3. The name of the author may not be used to endorse or promote products 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * derived from this software without specific prior written permission. 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_CONFIG_H 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "config.h" 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_SYS_TYPES_H 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/types.h> 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_SYS_PARAM_H 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/param.h> 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef WIN32 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define WIN32_LEAN_AND_MEAN 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <winsock2.h> 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <windows.h> 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#undef WIN32_LEAN_AND_MEAN 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/ioctl.h> 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/queue.h> 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_SYS_TIME_H 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <sys/time.h> 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <errno.h> 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdio.h> 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stdlib.h> 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string.h> 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef WIN32 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <syslog.h> 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifdef HAVE_UNISTD_H 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <unistd.h> 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "event.h" 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "evutil.h" 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "log.h" 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int evtag_decode_int(ev_uint32_t *pnumber, struct evbuffer *evbuf); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int evtag_encode_tag(struct evbuffer *evbuf, ev_uint32_t tag); 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int evtag_decode_tag(ev_uint32_t *ptag, struct evbuffer *evbuf); 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static struct evbuffer *_buf; /* not thread safe */ 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_init(void) 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (_buf != NULL) 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if ((_buf = evbuffer_new()) == NULL) 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) event_err(1, "%s: malloc", __func__); 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * We encode integer's by nibbles; the first nibble contains the number 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * of significant nibbles - 1; this allows us to encode up to 64-bit 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * integers. This function is byte-order independent. 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)encode_int(struct evbuffer *evbuf, ev_uint32_t number) 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int off = 1, nibbles = 0; 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint8_t data[5]; 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memset(data, 0, sizeof(ev_uint32_t)+1); 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) while (number) { 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (off & 0x1) 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data[off/2] = (data[off/2] & 0xf0) | (number & 0x0f); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data[off/2] = (data[off/2] & 0x0f) | 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ((number & 0x0f) << 4); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) number >>= 4; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) off++; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (off > 2) 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nibbles = off - 2; 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Off - 1 is the number of encoded nibbles */ 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data[0] = (data[0] & 0x0f) | ((nibbles & 0x0f) << 4); 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_add(evbuf, data, (off + 1) / 2); 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Support variable length encoding of tags; we use the high bit in each 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * octet as a continuation signal. 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_encode_tag(struct evbuffer *evbuf, ev_uint32_t tag) 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int bytes = 0; 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint8_t data[5]; 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memset(data, 0, sizeof(data)); 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) do { 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint8_t lower = tag & 0x7f; 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tag >>= 7; 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (tag) 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) lower |= 0x80; 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) data[bytes++] = lower; 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } while (tag); 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evbuf != NULL) 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_add(evbuf, data, bytes); 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (bytes); 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)decode_tag_internal(ev_uint32_t *ptag, struct evbuffer *evbuf, int dodrain) 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t number = 0; 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint8_t *data = EVBUFFER_DATA(evbuf); 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int len = EVBUFFER_LENGTH(evbuf); 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int count = 0, shift = 0, done = 0; 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) while (count++ < len) { 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint8_t lower = *data++; 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) number |= (lower & 0x7f) << shift; 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) shift += 7; 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!(lower & 0x80)) { 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) done = 1; 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) break; 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!done) 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (dodrain) 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(evbuf, count); 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (ptag != NULL) 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *ptag = number; 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (count); 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 1765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_decode_tag(ev_uint32_t *ptag, struct evbuffer *evbuf) 1775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (decode_tag_internal(ptag, evbuf, 1 /* dodrain */)); 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Marshal a data type, the general format is as follows: 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * tag number: one byte; length: var bytes; payload: var bytes 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_marshal(struct evbuffer *evbuf, ev_uint32_t tag, 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const void *data, ev_uint32_t len) 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evtag_encode_tag(evbuf, tag); 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) encode_int(evbuf, len); 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_add(evbuf, (void *)data, len); 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Marshaling for integers */ 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_marshal_int(struct evbuffer *evbuf, ev_uint32_t tag, ev_uint32_t integer) 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(_buf, EVBUFFER_LENGTH(_buf)); 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) encode_int(_buf, integer); 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evtag_encode_tag(evbuf, tag); 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) encode_int(evbuf, EVBUFFER_LENGTH(_buf)); 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_add_buffer(evbuf, _buf); 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_marshal_string(struct evbuffer *buf, ev_uint32_t tag, const char *string) 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evtag_marshal(buf, tag, string, strlen(string)); 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_marshal_timeval(struct evbuffer *evbuf, ev_uint32_t tag, struct timeval *tv) 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(_buf, EVBUFFER_LENGTH(_buf)); 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) encode_int(_buf, tv->tv_sec); 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) encode_int(_buf, tv->tv_usec); 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evtag_marshal(evbuf, tag, EVBUFFER_DATA(_buf), 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) EVBUFFER_LENGTH(_buf)); 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static int 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)decode_int_internal(ev_uint32_t *pnumber, struct evbuffer *evbuf, int dodrain) 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t number = 0; 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint8_t *data = EVBUFFER_DATA(evbuf); 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int len = EVBUFFER_LENGTH(evbuf); 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int nibbles = 0; 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!len) 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nibbles = ((data[0] & 0xf0) >> 4) + 1; 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (nibbles > 8 || (nibbles >> 1) + 1 > len) 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) len = (nibbles >> 1) + 1; 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) while (nibbles > 0) { 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) number <<= 4; 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (nibbles & 0x1) 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) number |= data[nibbles >> 1] & 0x0f; 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) number |= (data[nibbles >> 1] & 0xf0) >> 4; 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) nibbles--; 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (dodrain) 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(evbuf, len); 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *pnumber = number; 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (len); 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_decode_int(ev_uint32_t *pnumber, struct evbuffer *evbuf) 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (decode_int_internal(pnumber, evbuf, 1) == -1 ? -1 : 0); 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_peek(struct evbuffer *evbuf, ev_uint32_t *ptag) 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (decode_tag_internal(ptag, evbuf, 0 /* dodrain */)); 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_peek_length(struct evbuffer *evbuf, ev_uint32_t *plength) 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct evbuffer tmp; 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int res, len; 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) len = decode_tag_internal(NULL, evbuf, 0 /* dodrain */); 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (len == -1) 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tmp = *evbuf; 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tmp.buffer += len; 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tmp.off -= len; 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) res = decode_int_internal(plength, &tmp, 0); 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (res == -1) 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *plength += res + len; 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (0); 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_payload_length(struct evbuffer *evbuf, ev_uint32_t *plength) 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct evbuffer tmp; 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int res, len; 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) len = decode_tag_internal(NULL, evbuf, 0 /* dodrain */); 3015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (len == -1) 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tmp = *evbuf; 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tmp.buffer += len; 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tmp.off -= len; 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) res = decode_int_internal(plength, &tmp, 0); 3095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (res == -1) 3105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (0); 3135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 3165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_consume(struct evbuffer *evbuf) 3175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 3185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t len; 3195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (decode_tag_internal(NULL, evbuf, 1 /* dodrain */) == -1) 3205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evtag_decode_int(&len, evbuf) == -1) 3225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(evbuf, len); 3245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (0); 3265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Reads the data type from an event buffer */ 3295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 3315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_unmarshal(struct evbuffer *src, ev_uint32_t *ptag, struct evbuffer *dst) 3325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 3335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t len; 3345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t integer; 3355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (decode_tag_internal(ptag, src, 1 /* dodrain */) == -1) 3375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evtag_decode_int(&integer, src) == -1) 3395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) len = integer; 3415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (EVBUFFER_LENGTH(src) < len) 3435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evbuffer_add(dst, EVBUFFER_DATA(src), len) == -1) 3465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(src, len); 3495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (len); 3515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Marshaling for integers */ 3545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 3565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_unmarshal_int(struct evbuffer *evbuf, ev_uint32_t need_tag, 3575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t *pinteger) 3585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 3595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t tag; 3605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t len; 3615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t integer; 3625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (decode_tag_internal(&tag, evbuf, 1 /* dodrain */) == -1) 3645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (need_tag != tag) 3665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evtag_decode_int(&integer, evbuf) == -1) 3685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) len = integer; 3705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (EVBUFFER_LENGTH(evbuf) < len) 3725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(_buf, EVBUFFER_LENGTH(_buf)); 3755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evbuffer_add(_buf, EVBUFFER_DATA(evbuf), len) == -1) 3765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(evbuf, len); 3795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (evtag_decode_int(pinteger, _buf)); 3815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/* Unmarshal a fixed length tag */ 3845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 3865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_unmarshal_fixed(struct evbuffer *src, ev_uint32_t need_tag, void *data, 3875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t len) 3885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 3895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t tag; 3905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Initialize this event buffer so that we can read into it */ 3925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(_buf, EVBUFFER_LENGTH(_buf)); 3935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) /* Now unmarshal a tag and check that it matches the tag we want */ 3955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evtag_unmarshal(src, &tag, _buf) == -1 || tag != need_tag) 3965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 3975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (EVBUFFER_LENGTH(_buf) != len) 3995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 4005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy(data, EVBUFFER_DATA(_buf), len); 4025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (0); 4035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 4065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_unmarshal_string(struct evbuffer *evbuf, ev_uint32_t need_tag, 4075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char **pstring) 4085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 4095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t tag; 4105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(_buf, EVBUFFER_LENGTH(_buf)); 4125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evtag_unmarshal(evbuf, &tag, _buf) == -1 || tag != need_tag) 4145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 4155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *pstring = calloc(EVBUFFER_LENGTH(_buf) + 1, 1); 4175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (*pstring == NULL) 4185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) event_err(1, "%s: calloc", __func__); 4195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_remove(_buf, *pstring, EVBUFFER_LENGTH(_buf)); 4205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (0); 4225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 4235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)int 4255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)evtag_unmarshal_timeval(struct evbuffer *evbuf, ev_uint32_t need_tag, 4265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) struct timeval *ptv) 4275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles){ 4285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t tag; 4295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ev_uint32_t integer; 4305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) evbuffer_drain(_buf, EVBUFFER_LENGTH(_buf)); 4325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evtag_unmarshal(evbuf, &tag, _buf) == -1 || tag != need_tag) 4335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 4345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evtag_decode_int(&integer, _buf) == -1) 4365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 4375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ptv->tv_sec = integer; 4385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (evtag_decode_int(&integer, _buf) == -1) 4395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (-1); 4405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ptv->tv_usec = integer; 4415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (0); 4435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 444