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[glibc.git] / sunrpc / rpc_cmsg.c
blob097490302f520c40685e0cc3f6fb3d1b75d25a16
1 /*
2 * rpc_callmsg.c
4 * Copyright (C) 1984, Sun Microsystems, Inc.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
10 * * Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * * Redistributions in binary form must reproduce the above
13 * copyright notice, this list of conditions and the following
14 * disclaimer in the documentation and/or other materials
15 * provided with the distribution.
16 * * Neither the name of Sun Microsystems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
34 #include <string.h>
35 #include <sys/param.h>
36 #include <rpc/rpc.h>
39 * XDR a call message
41 bool_t
42 xdr_callmsg (XDR *xdrs, struct rpc_msg *cmsg)
44 int32_t *buf;
45 struct opaque_auth *oa;
47 if (xdrs->x_op == XDR_ENCODE)
49 if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES)
51 return (FALSE);
53 if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES)
55 return (FALSE);
57 buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT
58 + RNDUP (cmsg->rm_call.cb_cred.oa_length)
59 + 2 * BYTES_PER_XDR_UNIT
60 + RNDUP (cmsg->rm_call.cb_verf.oa_length));
61 if (buf != NULL)
63 (void) IXDR_PUT_LONG (buf, cmsg->rm_xid);
64 (void) IXDR_PUT_ENUM (buf, cmsg->rm_direction);
65 if (cmsg->rm_direction != CALL)
66 return FALSE;
67 (void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_rpcvers);
68 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
69 return FALSE;
70 (void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_prog);
71 (void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_vers);
72 (void) IXDR_PUT_LONG (buf, cmsg->rm_call.cb_proc);
73 oa = &cmsg->rm_call.cb_cred;
74 (void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
75 (void) IXDR_PUT_INT32 (buf, oa->oa_length);
76 if (oa->oa_length)
78 memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
79 buf = (int32_t *) ((char *) buf + RNDUP (oa->oa_length));
81 oa = &cmsg->rm_call.cb_verf;
82 (void) IXDR_PUT_ENUM (buf, oa->oa_flavor);
83 (void) IXDR_PUT_INT32 (buf, oa->oa_length);
84 if (oa->oa_length)
86 memcpy ((caddr_t) buf, oa->oa_base, oa->oa_length);
87 /* no real need....
88 buf = (long *) ((char *) buf + RNDUP(oa->oa_length));
91 return TRUE;
94 if (xdrs->x_op == XDR_DECODE)
96 buf = XDR_INLINE (xdrs, 8 * BYTES_PER_XDR_UNIT);
97 if (buf != NULL)
99 cmsg->rm_xid = IXDR_GET_LONG (buf);
100 cmsg->rm_direction = IXDR_GET_ENUM (buf, enum msg_type);
101 if (cmsg->rm_direction != CALL)
103 return FALSE;
105 cmsg->rm_call.cb_rpcvers = IXDR_GET_LONG (buf);
106 if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION)
108 return FALSE;
110 cmsg->rm_call.cb_prog = IXDR_GET_LONG (buf);
111 cmsg->rm_call.cb_vers = IXDR_GET_LONG (buf);
112 cmsg->rm_call.cb_proc = IXDR_GET_LONG (buf);
113 oa = &cmsg->rm_call.cb_cred;
114 oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
115 oa->oa_length = IXDR_GET_INT32 (buf);
116 if (oa->oa_length)
118 if (oa->oa_length > MAX_AUTH_BYTES)
119 return FALSE;
120 if (oa->oa_base == NULL)
122 oa->oa_base = (caddr_t)
123 mem_alloc (oa->oa_length);
125 buf = XDR_INLINE (xdrs, RNDUP (oa->oa_length));
126 if (buf == NULL)
128 if (INTUSE(xdr_opaque) (xdrs, oa->oa_base,
129 oa->oa_length) == FALSE)
130 return FALSE;
132 else
134 memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
135 /* no real need....
136 buf = (long *) ((char *) buf
137 + RNDUP(oa->oa_length));
141 oa = &cmsg->rm_call.cb_verf;
142 buf = XDR_INLINE (xdrs, 2 * BYTES_PER_XDR_UNIT);
143 if (buf == NULL)
145 if (INTUSE(xdr_enum) (xdrs, &oa->oa_flavor) == FALSE ||
146 INTUSE(xdr_u_int) (xdrs, &oa->oa_length) == FALSE)
148 return FALSE;
151 else
153 oa->oa_flavor = IXDR_GET_ENUM (buf, enum_t);
154 oa->oa_length = IXDR_GET_INT32 (buf);
156 if (oa->oa_length)
158 if (oa->oa_length > MAX_AUTH_BYTES)
159 return FALSE;
160 if (oa->oa_base == NULL)
162 oa->oa_base = (caddr_t)
163 mem_alloc (oa->oa_length);
165 buf = XDR_INLINE (xdrs, RNDUP (oa->oa_length));
166 if (buf == NULL)
168 if (INTUSE(xdr_opaque) (xdrs, oa->oa_base,
169 oa->oa_length) == FALSE)
170 return FALSE;
172 else
174 memcpy (oa->oa_base, (caddr_t) buf, oa->oa_length);
175 /* no real need...
176 buf = (long *) ((char *) buf
177 + RNDUP(oa->oa_length));
181 return TRUE;
184 if (
185 INTUSE(xdr_u_long) (xdrs, &(cmsg->rm_xid)) &&
186 INTUSE(xdr_enum) (xdrs, (enum_t *) & (cmsg->rm_direction)) &&
187 (cmsg->rm_direction == CALL) &&
188 INTUSE(xdr_u_long) (xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
189 (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) &&
190 INTUSE(xdr_u_long) (xdrs, &(cmsg->rm_call.cb_prog)) &&
191 INTUSE(xdr_u_long) (xdrs, &(cmsg->rm_call.cb_vers)) &&
192 INTUSE(xdr_u_long) (xdrs, &(cmsg->rm_call.cb_proc)) &&
193 INTUSE(xdr_opaque_auth) (xdrs, &(cmsg->rm_call.cb_cred)))
194 return INTUSE(xdr_opaque_auth) (xdrs, &(cmsg->rm_call.cb_verf));
195 return FALSE;
197 INTDEF(xdr_callmsg)