annotate src/feature.c @ 5:054275999194

Initial revision
author darius
date Sat, 06 Dec 1997 04:37:03 +0000
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children
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1 /*--------------------------------------------------------------------------
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2 NETREK II -- Paradise
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3
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4 Permission to use, copy, modify, and distribute this software and its
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5 documentation, or any derivative works thereof, for any NON-COMMERCIAL
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6 purpose and without fee is hereby granted, provided that this copyright
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7 notice appear in all copies. No representations are made about the
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8 suitability of this software for any purpose. This software is provided
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9 "as is" without express or implied warranty.
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10
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11 Xtrek Copyright 1986 Chris Guthrie
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12 Netrek (Xtrek II) Copyright 1989 Kevin P. Smith
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13 Scott Silvey
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14 Paradise II (Netrek II) Copyright 1993 Larry Denys
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15 Kurt Olsen
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16 Brandon Gillespie
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17 --------------------------------------------------------------------------*/
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18
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19 #include "config.h"
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20 #ifdef FEATURE
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21 #ifdef HPUX
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22 #include <sys/types.h>
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23 #include <netinet/in.h>
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24 #endif
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25 #include "defs.h"
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26 #include "data.h"
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27 #include "struct.h"
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28 #include "packets.h"
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29
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30 void sendClientPacket();
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31
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32 #ifdef UNIXWARE /* can you BELIEVE it doesn't have strcmpi?? */
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33 #if 0 /* just use strcmp for now */
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34 int
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35 strcmpi(char *a, char *b)
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36 {
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37
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38 char ta, tb;
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39
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40 while ((*a) && (*b))
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41 {
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42 ta = ((*a) >= 'a') && ((*b) <= 'z')) ? (*a) & 223 : (*a);
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43 tb = ((*b) >= 'a') && ((*b) <= 'z')) ? (*b) & 223 : (*b);
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44 if (ta < tb)
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45 return (-1);
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46 if (ta > tb)
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47 return (1);
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48 a++;
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49 b++;
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50 }
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51 if (!(*a) && (*b))
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52 return (1);
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53 if (!(*b) && (*a))
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54 return (-1);
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55 return (0);
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56 }
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57 #endif
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58 #endif
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59
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60 /*
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61 * Feature.c
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62 *
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63 * March, 1994. Joe Rumsey, Tedd Hadley
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64 *
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65 * most of the functions needed to handle SP_FEATURE/CP_FEATURE packets. fill
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66 * in the features list below for your client, and add a call to
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67 * reportFeatures just before the RSA response is sent. handleFeature should
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68 * just call checkFeature, which will search the list and set the appropriate
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69 * variable. features unknown to the server are set to the desired value for
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70 * client features, and off for server/client features.
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71 *
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72 * feature packets look like: struct feature_cpacket { char
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73 * type; char feature_type; char arg1, arg2;
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74 * int value; char name[80]; };
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75 *
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76 * type is CP_FEATURE, which is 60. feature_spacket is identical.
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77 *
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78 * Code lifted July 1995 by Bob Glamm - enabled into server code.
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79 *
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80 */
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81
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82 void handleFeature(struct feature_cpacket *);
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83 void
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84 sendFeature(char *name, int feature_type,
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85 int value, int arg1, int arg2);
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86
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87 /* not the actual packets: this holds a list of features to report for */
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88 /* this client. */
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89 struct feature
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90 {
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91 char *name;
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92 int *var; /* holds allowed/enabled status */
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93 char feature_type; /* 'S' or 'C' for server/client */
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94 int value; /* desired status */
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95 char *arg1, *arg2; /* where to copy args, if non-null */
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96 } features[] =
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97 {
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98 /*
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99 * also sent seperately, put here for checking later. should be ok that
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100 * it's sent twice.
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101 */
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102 {
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103 "FEATURE_PACKETS", &F_feature_packets, 'S', 1, 0, 0
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104 },
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105
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106 {
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107 "VIEW_BOX", &F_allowViewBox, 'C', 1, 0, 0
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108 },
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109 {
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110 "SHOW_ALL_TRACTORS", &F_allowShowAllTractorPressor, 'S', 1, 0, 0
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111 },
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112 #ifdef CONTINUOUS_MOUSE
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113 {
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114 "CONTINUOUS_MOUSE", &F_allowContinuousMouse, 'C', 1, 0, 0
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115 },
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116 #endif
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117 {
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118 "NEWMACRO", &F_UseNewMacro, 'C', 1, 0, 0
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119 },
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120 /* {"SMARTMACRO",&F_UseSmartMacro, 'C', 1, 0, 0}, */
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121 {
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122 "MULTIMACROS", &F_multiline_enabled, 'S', 1, 0, 0
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123 },
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124 {
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125 "WHY_DEAD", &F_why_dead, 'S', 1, 0, 0
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126 },
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127 {
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128 "CLOAK_MAXWARP", &F_cloakerMaxWarp, 'S', 1, 0, 0
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129 },
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130 /* {"DEAD_WARP", &F_dead_warp, 'S', 1, 0, 0}, */
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131 #ifdef RC_DISTRESS
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132 {
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133 "RC_DISTRESS", &F_gen_distress, 'S', 1, 0, 0
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134 },
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135 #ifdef BEEPLITE
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136 {
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137 "BEEPLITE", &F_allow_beeplite, 'C', 1, (char *) &F_beeplite_flags, 0
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138 },
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139 #endif
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140 #endif
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141 /* terrain features */
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142 {
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143 "TERRAIN", &F_terrain, 'S', 1, (char *) &F_terrain_major, (char *) &F_terrain_minor
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144 },
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145 /* Gzipped MOTD */
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146 {
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147 "GZ_MOTD", &F_gz_motd, 'S', 1, (char *) &F_gz_motd_major, (char *) &F_gz_motd_minor
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148 },
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149 {
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150 0, 0, 0, 0, 0, 0
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151 }
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152 };
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153
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154 void
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155 handleFeature(packet)
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156 struct feature_cpacket *packet;
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157 {
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158 int feature = 0;
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159 int value = ntohl(packet->value);
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160
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161 #ifdef FEATURE_DIAG
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162 pmessage("Whoohoo! Getting a feature packet.", 0, MALL, MSERVA);
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163 #endif
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164 while (features[feature].name)
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165 {
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166 if (!strcmp(features[feature].name, packet->name))
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167 {
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168 #ifdef FEATURE_DIAG
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169 {
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170 char buf[80];
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171 sprintf(buf, "BEANS! Matched feature %s", packet->name);
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172 pmessage(buf, 0, MALL, MSERVA);
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173 }
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174 #endif
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175 /* A match was found. */
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176 if (features[feature].var)
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177 *features[feature].var = packet->value;
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178 if (features[feature].arg1)
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179 *features[feature].arg1 = packet->arg1;
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180 if (features[feature].arg2)
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181 *features[feature].arg2 = packet->arg2;
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182
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183 /*
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184 * tell the client that the server handles all of the above server
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185 * features.
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186 */
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187 if (features[feature].feature_type == 'S')
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188 {
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189 #ifdef FEATURE_DIAG
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190 pmessage("Sending FEATURE_PACKETS right back at ya!", 0, MALL, MSERVA);
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191 #endif
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192 sendFeature(features[feature].name,
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193 features[feature].feature_type,
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194 features[feature].value,
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195 (features[feature].arg1 ? *features[feature].arg1 : 0),
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196 (features[feature].arg2 ? *features[feature].arg2 : 0));
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197 }
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198 }
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199 feature++;
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200 }
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201 }
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202
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203 void
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204 sendFeature(name, feature_type, value, arg1, arg2)
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205 char *name;
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206 int feature_type;
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207 int value;
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208 int arg1, arg2;
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209 {
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210 struct feature_cpacket packet;
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211 #ifdef FEATURE_DIAG
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212 char buf[80];
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213
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214 sprintf(buf, "Sending packet %d, name %s", SP_FEATURE, name);
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215 pmessage(buf, 0, MALL, MSERVA);
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216 #endif
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217
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218 strncpy(packet.name, name, sizeof(packet.name));
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219 packet.type = SP_FEATURE;
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220 packet.name[sizeof(packet.name) - 1] = 0;
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221 packet.feature_type = feature_type;
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222 packet.value = htonl(value);
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223 packet.arg1 = arg1;
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224 packet.arg2 = arg2;
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225 sendClientPacket((struct player_spacket *) & packet);
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226 }
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227
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228 #endif /* FEATURE */