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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/*
* $Id: nbp_unrgstr.c,v 1.4 2002/01/17 06:12:02 srittau Exp $
*
* Copyright (c) 1990,1997 Regents of The University of Michigan.
* All Rights Reserved. See COPYRIGHT.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
#include <string.h>
#include <errno.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <netatalk/endian.h>
#include <netatalk/at.h>
#include <atalk/nbp.h>
#include <atalk/netddp.h>
#include <atalk/ddp.h>
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif /* HAVE_NETDB_H */
#include "nbp_conf.h"
/* FIXME/SOCKLEN_T: socklen_t is a unix98 feature. */
#ifndef SOCKLEN_T
#define SOCKLEN_T unsigned int
#endif /* ! SOCKLEN_T */
int nbp_unrgstr( obj, type, zone, addr )
const char *obj, *type, *zone;
const struct at_addr *addr;
{
struct sockaddr_at to;
struct nbphdr nh;
struct timeval timeout;
fd_set readfd;
struct servent *se;
char *data;
int s, cc;
SOCKLEN_T namelen;
memset(&to, 0, sizeof(to));
if ((s = netddp_open(&to, NULL)) < 0)
return -1;
data = nbp_send;
*data++ = DDPTYPE_NBP;
nh.nh_op = NBPOP_UNRGSTR;
nh.nh_cnt = 1;
nh.nh_id = ++nbp_id;
memcpy( data, &nh, SZ_NBPHDR );
data += SZ_NBPHDR;
memset(data, 0, SZ_NBPTUPLE);
data += SZ_NBPTUPLE;
if ( obj ) {
if (( cc = strlen( obj )) > NBPSTRLEN ) return( -1 );
*data++ = cc;
memcpy( data, obj, cc );
data += cc;
} else {
*data++ = 0;
}
if ( type ) {
if (( cc = strlen( type )) > NBPSTRLEN ) return( -1 );
*data++ = cc;
memcpy( data, type, cc );
data += cc;
} else {
*data++ = 0;
}
if ( zone ) {
if (( cc = strlen( zone )) > NBPSTRLEN ) return( -1 );
*data++ = cc;
memcpy( data, zone, cc );
data += cc;
} else {
*data++ = 0;
}
memset( &to, 0, sizeof( struct sockaddr_at ));
to.sat_family = AF_APPLETALK;
if (addr)
memcpy(&to.sat_addr, addr, sizeof(struct at_addr));
#ifdef BSD4_4
to.sat_len = sizeof( struct sockaddr_at );
#endif /* BSD4_4 */
if ( nbp_port == 0 ) {
if (( se = getservbyname( "nbp", "ddp" )) == NULL ) {
nbp_port = 2;
} else {
nbp_port = ntohs( se->s_port );
}
}
to.sat_port = nbp_port;
if ( netddp_sendto( s, nbp_send, data - nbp_send, 0,
(struct sockaddr *)&to,
sizeof( struct sockaddr_at )) < 0 ) {
goto unregister_err;
}
FD_ZERO( &readfd );
FD_SET( s, &readfd );
timeout.tv_sec = 2;
timeout.tv_usec = 0;
if (( cc = select( s + 1, &readfd, 0, 0, &timeout )) < 0 ) {
goto unregister_err;
}
if ( cc == 0 ) {
errno = ETIMEDOUT;
goto unregister_err;
}
namelen = sizeof( struct sockaddr_at );
if (( cc = netddp_recvfrom( s, nbp_recv, sizeof( nbp_recv ), 0,
(struct sockaddr *)&to, &namelen )) < 0 ) {
goto unregister_err;
}
netddp_close( s );
data = nbp_recv;
if ( *data++ != DDPTYPE_NBP ) {
return( -1 );
}
memcpy( &nh, data, SZ_NBPHDR );
if ( nh.nh_op != NBPOP_OK ) {
return( -1 );
}
return( 0 );
unregister_err:
netddp_close(s);
return -1;
}
|