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95f51977 C |
1 | /* |
2 | * Sun RPC is a product of Sun Microsystems, Inc. and is provided for | |
3 | * unrestricted use provided that this legend is included on all tape | |
4 | * media and as a part of the software program in whole or part. Users | |
5 | * may copy or modify Sun RPC without charge, but are not authorized | |
6 | * to license or distribute it to anyone else except as part of a product or | |
7 | * program developed by the user. | |
8 | * | |
9 | * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE | |
10 | * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR | |
11 | * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. | |
12 | * | |
13 | * Sun RPC is provided with no support and without any obligation on the | |
14 | * part of Sun Microsystems, Inc. to assist in its use, correction, | |
15 | * modification or enhancement. | |
16 | * | |
17 | * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE | |
18 | * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC | |
19 | * OR ANY PART THEREOF. | |
20 | * | |
21 | * In no event will Sun Microsystems, Inc. be liable for any lost revenue | |
22 | * or profits or other special, indirect and consequential damages, even if | |
23 | * Sun has been advised of the possibility of such damages. | |
24 | * | |
25 | * Sun Microsystems, Inc. | |
26 | * 2550 Garcia Avenue | |
27 | * Mountain View, California 94043 | |
28 | */ | |
29 | #ifndef lint | |
30 | static char sccsid[] = "@(#)pmap_clnt.c 1.4 85/04/08 Copyr 1984 Sun Micro"; | |
31 | #endif | |
32 | ||
33 | /* | |
34 | * pmap_clnt.c | |
35 | * Client interface to pmap rpc service. | |
36 | * | |
37 | * Copyright (C) 1984, Sun Microsystems, Inc. | |
38 | */ | |
39 | ||
40 | #include "types.h" | |
41 | #include <netinet/in.h> | |
42 | #include "xdr.h" | |
43 | #include "auth.h" | |
44 | #include "clnt.h" | |
45 | #include "rpc_msg.h" | |
46 | #include "pmap_prot.h" | |
47 | #include "pmap_clnt.h" | |
48 | #include <sys/socket.h> | |
49 | #include <sys/time.h> | |
50 | #include <stdio.h> | |
51 | #include <net/if.h> | |
52 | #include <sys/ioctl.h> | |
53 | #include <arpa/inet.h> | |
54 | #define NAMELEN 255 | |
55 | ||
56 | static struct timeval timeout = { 5, 0 }; | |
57 | static struct timeval tottimeout = { 60, 0 }; | |
58 | static struct sockaddr_in myaddress; | |
59 | ||
60 | void clnt_perror(); | |
61 | ||
62 | ||
63 | /* | |
64 | * Set a mapping between program,version and port. | |
65 | * Calls the pmap service remotely to do the mapping. | |
66 | */ | |
67 | bool_t | |
68 | pmap_set(program, version, protocol, port) | |
69 | u_long program; | |
70 | u_long version; | |
71 | u_long protocol; | |
72 | u_short port; | |
73 | { | |
74 | struct sockaddr_in myaddress; | |
75 | int socket = -1; | |
76 | register CLIENT *client; | |
77 | struct pmap parms; | |
78 | bool_t rslt; | |
79 | ||
80 | get_myaddress(&myaddress); | |
81 | client = clntudp_create(&myaddress, PMAPPROG, PMAPVERS, | |
82 | timeout, &socket); | |
83 | if (client == (CLIENT *)NULL) | |
84 | return (FALSE); | |
85 | parms.pm_prog = program; | |
86 | parms.pm_vers = version; | |
87 | parms.pm_prot = protocol; | |
88 | parms.pm_port = port; | |
89 | if (CLNT_CALL(client, PMAPPROC_SET, xdr_pmap, &parms, xdr_bool, &rslt, | |
90 | tottimeout) != RPC_SUCCESS) { | |
91 | clnt_perror(client, "Cannot register service"); | |
92 | return (FALSE); | |
93 | } | |
94 | CLNT_DESTROY(client); | |
95 | (void)close(socket); | |
96 | return (rslt); | |
97 | } | |
98 | ||
99 | /* | |
100 | * Remove the mapping between program,version and port. | |
101 | * Calls the pmap service remotely to do the un-mapping. | |
102 | */ | |
103 | bool_t | |
104 | pmap_unset(program, version) | |
105 | u_long program; | |
106 | u_long version; | |
107 | { | |
108 | struct sockaddr_in myaddress; | |
109 | int socket = -1; | |
110 | register CLIENT *client; | |
111 | struct pmap parms; | |
112 | bool_t rslt; | |
113 | ||
114 | get_myaddress(&myaddress); | |
115 | client = clntudp_create(&myaddress, PMAPPROG, PMAPVERS, | |
116 | timeout, &socket); | |
117 | if (client == (CLIENT *)NULL) | |
118 | return (FALSE); | |
119 | parms.pm_prog = program; | |
120 | parms.pm_vers = version; | |
121 | parms.pm_port = parms.pm_prot = 0; | |
122 | CLNT_CALL(client, PMAPPROC_UNSET, xdr_pmap, &parms, xdr_bool, &rslt, | |
123 | tottimeout); | |
124 | CLNT_DESTROY(client); | |
125 | (void)close(socket); | |
126 | return (rslt); | |
127 | } | |
128 | ||
129 | /* | |
130 | * don't use gethostbyname, which would invoke yellow pages | |
131 | */ | |
132 | get_myaddress(addr) | |
133 | struct sockaddr_in *addr; | |
134 | { | |
135 | int s; | |
136 | char buf[BUFSIZ]; | |
137 | struct ifconf ifc; | |
138 | struct ifreq ifreq, *ifr; | |
1c15e888 | 139 | int len, slop; |
95f51977 C |
140 | |
141 | if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { | |
142 | perror("get_myaddress: socket"); | |
143 | exit(1); | |
144 | } | |
145 | ifc.ifc_len = sizeof (buf); | |
146 | ifc.ifc_buf = buf; | |
147 | if (ioctl(s, SIOCGIFCONF, (char *)&ifc) < 0) { | |
148 | perror("get_myaddress: ioctl (get interface configuration)"); | |
149 | exit(1); | |
150 | } | |
151 | ifr = ifc.ifc_req; | |
152 | for (len = ifc.ifc_len; len; len -= sizeof ifreq) { | |
153 | ifreq = *ifr; | |
154 | if (ioctl(s, SIOCGIFFLAGS, (char *)&ifreq) < 0) { | |
155 | perror("get_myaddress: ioctl"); | |
156 | exit(1); | |
157 | } | |
158 | if ((ifreq.ifr_flags & IFF_UP) && | |
159 | ifr->ifr_addr.sa_family == AF_INET) { | |
160 | *addr = *((struct sockaddr_in *)&ifr->ifr_addr); | |
161 | addr->sin_port = htons(PMAPPORT); | |
162 | break; | |
163 | } | |
1c15e888 C |
164 | /* |
165 | * Deal with variable length addresses | |
166 | */ | |
167 | slop = ifr->ifr_addr.sa_len - sizeof (struct sockaddr); | |
168 | if (slop) { | |
169 | ifr = (struct ifreq *) ((caddr_t)ifr + slop); | |
170 | len -= slop; | |
171 | } | |
95f51977 C |
172 | ifr++; |
173 | } | |
174 | close(s); | |
175 | } |