1 | #include <machine/rtems-bsd-user-space.h> |
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2 | |
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3 | /* $NetBSD: rpcb_prot.c,v 1.3 2000/07/14 08:40:42 fvdl Exp $ */ |
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4 | |
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5 | /*- |
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6 | * Copyright (c) 2009, Sun Microsystems, Inc. |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions are met: |
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11 | * - Redistributions of source code must retain the above copyright notice, |
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12 | * this list of conditions and the following disclaimer. |
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13 | * - Redistributions in binary form must reproduce the above copyright notice, |
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14 | * this list of conditions and the following disclaimer in the documentation |
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15 | * and/or other materials provided with the distribution. |
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16 | * - Neither the name of Sun Microsystems, Inc. nor the names of its |
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17 | * contributors may be used to endorse or promote products derived |
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18 | * from this software without specific prior written permission. |
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19 | * |
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20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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21 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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24 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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30 | * POSSIBILITY OF SUCH DAMAGE. |
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31 | */ |
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32 | /* |
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33 | * Copyright (c) 1986-1991 by Sun Microsystems Inc. |
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34 | */ |
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35 | |
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36 | /* #ident "@(#)rpcb_prot.c 1.13 94/04/24 SMI" */ |
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37 | |
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38 | #if defined(LIBC_SCCS) && !defined(lint) |
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39 | static char sccsid[] = "@(#)rpcb_prot.c 1.9 89/04/21 Copyr 1984 Sun Micro"; |
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40 | #endif |
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41 | #include <sys/cdefs.h> |
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42 | __FBSDID("$FreeBSD$"); |
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43 | |
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44 | /* |
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45 | * rpcb_prot.c |
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46 | * XDR routines for the rpcbinder version 3. |
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47 | * |
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48 | * Copyright (C) 1984, 1988, Sun Microsystems, Inc. |
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49 | */ |
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50 | |
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51 | #include "namespace.h" |
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52 | #include <rpc/rpc.h> |
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53 | #include <rpc/types.h> |
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54 | #include <rpc/xdr.h> |
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55 | #include <rpc/rpcb_prot.h> |
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56 | #include "un-namespace.h" |
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57 | |
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58 | bool_t |
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59 | xdr_rpcb(xdrs, objp) |
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60 | XDR *xdrs; |
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61 | RPCB *objp; |
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62 | { |
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63 | if (!xdr_u_int32_t(xdrs, &objp->r_prog)) { |
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64 | return (FALSE); |
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65 | } |
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66 | if (!xdr_u_int32_t(xdrs, &objp->r_vers)) { |
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67 | return (FALSE); |
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68 | } |
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69 | if (!xdr_string(xdrs, &objp->r_netid, (u_int)~0)) { |
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70 | return (FALSE); |
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71 | } |
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72 | if (!xdr_string(xdrs, &objp->r_addr, (u_int)~0)) { |
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73 | return (FALSE); |
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74 | } |
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75 | if (!xdr_string(xdrs, &objp->r_owner, (u_int)~0)) { |
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76 | return (FALSE); |
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77 | } |
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78 | return (TRUE); |
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79 | } |
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80 | |
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81 | /* |
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82 | * rpcblist_ptr implements a linked list. The RPCL definition from |
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83 | * rpcb_prot.x is: |
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84 | * |
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85 | * struct rpcblist { |
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86 | * rpcb rpcb_map; |
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87 | * struct rpcblist *rpcb_next; |
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88 | * }; |
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89 | * typedef rpcblist *rpcblist_ptr; |
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90 | * |
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91 | * Recall that "pointers" in XDR are encoded as a boolean, indicating whether |
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92 | * there's any data behind the pointer, followed by the data (if any exists). |
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93 | * The boolean can be interpreted as ``more data follows me''; if FALSE then |
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94 | * nothing follows the boolean; if TRUE then the boolean is followed by an |
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95 | * actual struct rpcb, and another rpcblist_ptr (declared in RPCL as "struct |
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96 | * rpcblist *"). |
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97 | * |
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98 | * This could be implemented via the xdr_pointer type, though this would |
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99 | * result in one recursive call per element in the list. Rather than do that |
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100 | * we can ``unwind'' the recursion into a while loop and use xdr_reference to |
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101 | * serialize the rpcb elements. |
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102 | */ |
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103 | |
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104 | bool_t |
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105 | xdr_rpcblist_ptr(xdrs, rp) |
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106 | XDR *xdrs; |
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107 | rpcblist_ptr *rp; |
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108 | { |
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109 | /* |
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110 | * more_elements is pre-computed in case the direction is |
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111 | * XDR_ENCODE or XDR_FREE. more_elements is overwritten by |
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112 | * xdr_bool when the direction is XDR_DECODE. |
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113 | */ |
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114 | bool_t more_elements; |
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115 | int freeing = (xdrs->x_op == XDR_FREE); |
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116 | rpcblist_ptr next; |
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117 | rpcblist_ptr next_copy; |
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118 | |
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119 | next = NULL; |
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120 | for (;;) { |
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121 | more_elements = (bool_t)(*rp != NULL); |
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122 | if (! xdr_bool(xdrs, &more_elements)) { |
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123 | return (FALSE); |
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124 | } |
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125 | if (! more_elements) { |
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126 | return (TRUE); /* we are done */ |
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127 | } |
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128 | /* |
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129 | * the unfortunate side effect of non-recursion is that in |
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130 | * the case of freeing we must remember the next object |
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131 | * before we free the current object ... |
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132 | */ |
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133 | if (freeing && *rp) |
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134 | next = (*rp)->rpcb_next; |
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135 | if (! xdr_reference(xdrs, (caddr_t *)rp, |
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136 | (u_int)sizeof (rpcblist), (xdrproc_t)xdr_rpcb)) { |
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137 | return (FALSE); |
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138 | } |
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139 | if (freeing) { |
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140 | next_copy = next; |
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141 | rp = &next_copy; |
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142 | /* |
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143 | * Note that in the subsequent iteration, next_copy |
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144 | * gets nulled out by the xdr_reference |
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145 | * but next itself survives. |
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146 | */ |
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147 | } else if (*rp) { |
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148 | rp = &((*rp)->rpcb_next); |
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149 | } |
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150 | } |
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151 | /*NOTREACHED*/ |
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152 | } |
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153 | |
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154 | /* |
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155 | * xdr_rpcblist() is specified to take a RPCBLIST **, but is identical in |
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156 | * functionality to xdr_rpcblist_ptr(). |
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157 | */ |
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158 | bool_t |
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159 | xdr_rpcblist(xdrs, rp) |
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160 | XDR *xdrs; |
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161 | RPCBLIST **rp; |
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162 | { |
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163 | bool_t dummy; |
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164 | |
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165 | dummy = xdr_rpcblist_ptr(xdrs, (rpcblist_ptr *)rp); |
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166 | return (dummy); |
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167 | } |
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168 | |
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169 | |
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170 | bool_t |
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171 | xdr_rpcb_entry(xdrs, objp) |
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172 | XDR *xdrs; |
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173 | rpcb_entry *objp; |
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174 | { |
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175 | if (!xdr_string(xdrs, &objp->r_maddr, (u_int)~0)) { |
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176 | return (FALSE); |
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177 | } |
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178 | if (!xdr_string(xdrs, &objp->r_nc_netid, (u_int)~0)) { |
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179 | return (FALSE); |
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180 | } |
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181 | if (!xdr_u_int32_t(xdrs, &objp->r_nc_semantics)) { |
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182 | return (FALSE); |
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183 | } |
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184 | if (!xdr_string(xdrs, &objp->r_nc_protofmly, (u_int)~0)) { |
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185 | return (FALSE); |
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186 | } |
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187 | if (!xdr_string(xdrs, &objp->r_nc_proto, (u_int)~0)) { |
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188 | return (FALSE); |
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189 | } |
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190 | return (TRUE); |
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191 | } |
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192 | |
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193 | bool_t |
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194 | xdr_rpcb_entry_list_ptr(xdrs, rp) |
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195 | XDR *xdrs; |
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196 | rpcb_entry_list_ptr *rp; |
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197 | { |
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198 | /* |
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199 | * more_elements is pre-computed in case the direction is |
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200 | * XDR_ENCODE or XDR_FREE. more_elements is overwritten by |
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201 | * xdr_bool when the direction is XDR_DECODE. |
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202 | */ |
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203 | bool_t more_elements; |
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204 | int freeing = (xdrs->x_op == XDR_FREE); |
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205 | rpcb_entry_list_ptr next; |
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206 | rpcb_entry_list_ptr next_copy; |
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207 | |
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208 | next = NULL; |
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209 | for (;;) { |
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210 | more_elements = (bool_t)(*rp != NULL); |
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211 | if (! xdr_bool(xdrs, &more_elements)) { |
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212 | return (FALSE); |
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213 | } |
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214 | if (! more_elements) { |
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215 | return (TRUE); /* we are done */ |
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216 | } |
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217 | /* |
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218 | * the unfortunate side effect of non-recursion is that in |
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219 | * the case of freeing we must remember the next object |
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220 | * before we free the current object ... |
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221 | */ |
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222 | if (freeing) |
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223 | next = (*rp)->rpcb_entry_next; |
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224 | if (! xdr_reference(xdrs, (caddr_t *)rp, |
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225 | (u_int)sizeof (rpcb_entry_list), |
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226 | (xdrproc_t)xdr_rpcb_entry)) { |
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227 | return (FALSE); |
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228 | } |
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229 | if (freeing && *rp) { |
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230 | next_copy = next; |
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231 | rp = &next_copy; |
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232 | /* |
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233 | * Note that in the subsequent iteration, next_copy |
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234 | * gets nulled out by the xdr_reference |
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235 | * but next itself survives. |
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236 | */ |
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237 | } else if (*rp) { |
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238 | rp = &((*rp)->rpcb_entry_next); |
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239 | } |
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240 | } |
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241 | /*NOTREACHED*/ |
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242 | } |
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243 | |
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244 | /* |
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245 | * XDR remote call arguments |
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246 | * written for XDR_ENCODE direction only |
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247 | */ |
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248 | bool_t |
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249 | xdr_rpcb_rmtcallargs(xdrs, p) |
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250 | XDR *xdrs; |
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251 | struct rpcb_rmtcallargs *p; |
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252 | { |
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253 | struct r_rpcb_rmtcallargs *objp = |
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254 | (struct r_rpcb_rmtcallargs *)(void *)p; |
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255 | u_int lenposition, argposition, position; |
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256 | int32_t *buf; |
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257 | |
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258 | buf = XDR_INLINE(xdrs, 3 * BYTES_PER_XDR_UNIT); |
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259 | if (buf == NULL) { |
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260 | if (!xdr_u_int32_t(xdrs, &objp->prog)) { |
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261 | return (FALSE); |
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262 | } |
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263 | if (!xdr_u_int32_t(xdrs, &objp->vers)) { |
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264 | return (FALSE); |
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265 | } |
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266 | if (!xdr_u_int32_t(xdrs, &objp->proc)) { |
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267 | return (FALSE); |
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268 | } |
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269 | } else { |
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270 | IXDR_PUT_U_INT32(buf, objp->prog); |
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271 | IXDR_PUT_U_INT32(buf, objp->vers); |
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272 | IXDR_PUT_U_INT32(buf, objp->proc); |
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273 | } |
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274 | |
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275 | /* |
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276 | * All the jugglery for just getting the size of the arguments |
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277 | */ |
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278 | lenposition = XDR_GETPOS(xdrs); |
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279 | if (! xdr_u_int(xdrs, &(objp->args.args_len))) { |
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280 | return (FALSE); |
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281 | } |
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282 | argposition = XDR_GETPOS(xdrs); |
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283 | if (! (*objp->xdr_args)(xdrs, objp->args.args_val)) { |
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284 | return (FALSE); |
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285 | } |
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286 | position = XDR_GETPOS(xdrs); |
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287 | objp->args.args_len = (u_int)((u_long)position - (u_long)argposition); |
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288 | XDR_SETPOS(xdrs, lenposition); |
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289 | if (! xdr_u_int(xdrs, &(objp->args.args_len))) { |
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290 | return (FALSE); |
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291 | } |
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292 | XDR_SETPOS(xdrs, position); |
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293 | return (TRUE); |
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294 | } |
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295 | |
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296 | /* |
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297 | * XDR remote call results |
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298 | * written for XDR_DECODE direction only |
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299 | */ |
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300 | bool_t |
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301 | xdr_rpcb_rmtcallres(xdrs, p) |
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302 | XDR *xdrs; |
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303 | struct rpcb_rmtcallres *p; |
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304 | { |
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305 | bool_t dummy; |
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306 | struct r_rpcb_rmtcallres *objp = (struct r_rpcb_rmtcallres *)(void *)p; |
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307 | |
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308 | if (!xdr_string(xdrs, &objp->addr, (u_int)~0)) { |
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309 | return (FALSE); |
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310 | } |
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311 | if (!xdr_u_int(xdrs, &objp->results.results_len)) { |
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312 | return (FALSE); |
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313 | } |
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314 | dummy = (*(objp->xdr_res))(xdrs, objp->results.results_val); |
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315 | return (dummy); |
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316 | } |
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317 | |
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318 | bool_t |
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319 | xdr_netbuf(xdrs, objp) |
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320 | XDR *xdrs; |
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321 | struct netbuf *objp; |
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322 | { |
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323 | bool_t dummy; |
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324 | void **pp; |
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325 | |
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326 | if (!xdr_u_int32_t(xdrs, (u_int32_t *) &objp->maxlen)) { |
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327 | return (FALSE); |
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328 | } |
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329 | pp = &objp->buf; |
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330 | dummy = xdr_bytes(xdrs, (char **) pp, |
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331 | (u_int *)&(objp->len), objp->maxlen); |
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332 | return (dummy); |
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333 | } |
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