Mercurial > hg > early-roguelike
annotate srogue/save.c @ 105:f0073eb75a6a
srogue: enable the keypad when restoring.
keypad() was only being called when starting a new game, which meant
the arrow keys did not work when restoring a saved game.
author | John "Elwin" Edwards |
---|---|
date | Tue, 03 Sep 2013 15:39:04 -0700 |
parents | d852b8f088c5 |
children | 458df24e973d |
rev | line source |
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36
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1 /* |
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2 * save and restore routines |
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3 * |
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4 * @(#)save.c 9.0 (rdk) 7/17/84 |
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5 * |
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6 * Super-Rogue |
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7 * Copyright (C) 1984 Robert D. Kindelberger |
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8 * All rights reserved. |
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9 * |
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10 * Based on "Rogue: Exploring the Dungeons of Doom" |
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11 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman |
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12 * All rights reserved. |
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13 * |
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14 * See the file LICENSE.TXT for full copyright and licensing information. |
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15 */ |
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16 |
60 | 17 #include <stdlib.h> |
18 #include <string.h> | |
36
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19 #include <unistd.h> |
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20 #include <ctype.h> |
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21 #include <fcntl.h> |
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22 #include <sys/types.h> |
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23 #include <sys/stat.h> |
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24 #include <signal.h> |
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25 #include <errno.h> |
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26 #include "rogue.h" |
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27 #include "rogue.ext" |
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28 |
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29 #ifdef BSD |
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30 #define srand48(seed) srandom(seed) |
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31 #endif |
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32 |
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33 EXTCHAR version[]; |
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34 EXTCHAR *ctime(); |
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35 |
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36 typedef struct stat STAT; |
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37 STAT sbuf; |
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38 |
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39 /* |
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40 * ignore: |
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41 * Ignore ALL signals possible |
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42 */ |
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43 ignore() |
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44 { |
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45 int i; |
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46 |
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47 for (i = 0; i < NSIG; i++) |
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48 signal(i, SIG_IGN); |
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49 } |
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50 |
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51 /* |
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52 * save_game: |
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53 * Save the current game |
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54 */ |
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55 save_game() |
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56 { |
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57 reg FILE *savef; |
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58 reg int c; |
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59 char buf[LINLEN]; |
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60 |
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61 mpos = 0; |
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62 if (file_name[0] != '\0') { |
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63 if (use_savedir) |
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64 msg("Save game? (y/n) "); |
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65 else |
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66 msg("Save file (%s)? ", file_name); |
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67 do { |
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68 c = wgetch(cw); |
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69 if(c == ESCAPE) { |
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70 msg(""); |
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71 return FALSE; |
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72 } |
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73 } while (c != 'n' && c != 'y'); |
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74 mpos = 0; |
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75 if (c == 'y') |
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76 goto gotfile; |
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77 } |
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78 if (use_savedir) { |
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79 msg(""); |
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80 return FALSE; |
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81 } |
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82 msg("File name: "); |
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83 mpos = 0; |
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84 buf[0] = '\0'; |
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85 if (get_str(buf, cw) == QUIT) { |
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86 msg(""); |
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87 return FALSE; |
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88 } |
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89 msg(""); |
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90 strcpy(file_name, buf); |
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91 gotfile: |
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92 c = dosave(); /* try to save this game */ |
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93 if (c == FALSE) |
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94 msg("Could not save game to file %s", file_name); |
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95 return c; |
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96 } |
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97 |
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98 /* |
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99 * auto_save: |
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100 * Automatically save a game |
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101 */ |
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102 void |
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103 auto_save(int a) |
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104 { |
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105 dosave(); /* save this game */ |
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106 byebye(1); /* so long for now */ |
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107 } |
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108 |
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109 /* |
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110 * game_err: |
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111 * When an error occurs. Set error flag and save game. |
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112 */ |
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113 void |
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114 game_err(int a) |
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115 { |
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116 int ok; |
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117 |
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118 ok = dosave(); /* try to save this game */ |
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119 clear(); |
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120 refresh(); |
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121 endwin(); |
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122 |
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123 printf("\nInternal error !!!\n\nYour game was "); |
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124 if (ok) |
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125 printf("saved."); |
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126 else |
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127 printf("NOT saveable."); |
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128 |
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129 fflush(stdout); |
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130 |
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131 #ifdef SIGIOT |
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132 signal(SIGIOT, SIG_DFL); /* allow core dump signal */ |
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133 #endif |
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134 |
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135 abort(); /* cause core dump */ |
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136 byebye(3); |
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137 } |
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138 |
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139 /* |
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140 * dosave: |
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141 * Set UID back to user and save the game |
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142 */ |
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143 dosave() |
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144 { |
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145 FILE *savef; |
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146 |
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147 ignore(); |
37 | 148 if (!use_savedir) |
149 { | |
150 setuid(playuid); | |
151 setgid(playgid); | |
152 } | |
36
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153 umask(022); |
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154 |
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155 if (file_name[0] != '\0') { |
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156 if ((savef = fopen(file_name,"w")) != NULL) |
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157 { |
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158 save_file(savef); |
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159 return TRUE; |
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160 } |
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161 } |
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162 return FALSE; |
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163 } |
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164 |
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165 /* |
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166 * save_file: |
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167 * Do the actual save of this game to a file |
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168 */ |
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169 save_file(savef) |
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170 FILE *savef; |
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171 { |
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172 reg int fnum; |
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173 int slines = LINES; |
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174 int scols = COLS; |
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175 |
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176 #ifdef __DJGPP__ /* st_ino w/ DJGPP under WinXP broken */ |
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177 _djstat_flags |= _STAT_INODE; /* so turn off computing it for now */ |
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178 #endif |
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179 |
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180 /* |
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181 * force allocation of the buffer now so that inodes, etc |
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182 * can be checked when restoring saved games. |
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183 */ |
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184 fnum = fileno(savef); |
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185 fstat(fnum, &sbuf); |
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186 write(fnum, "RDK", 4); |
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187 lseek(fnum, 0L, 0); |
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188 encwrite(version,strlen(version)+1,savef); |
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189 encwrite(&slines,sizeof(slines),savef); |
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190 encwrite(&scols,sizeof(scols),savef); |
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191 msg(""); |
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192 rs_save_file(savef); |
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193 close(fnum); |
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194 signal(SIGINT, byebye); |
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195 signal(SIGQUIT, byebye); |
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196 wclear(cw); |
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197 draw(cw); |
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198 } |
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199 |
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200 /* |
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201 * restore: |
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202 * Restore a saved game from a file |
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203 */ |
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204 restore(file, envp) |
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205 char *file, **envp; |
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206 { |
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207 register inf, pid; |
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208 int ret_status; |
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209 #ifndef _AIX |
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210 extern char **environ; |
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211 #endif |
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212 #ifdef __DJGPP__ /* st_ino w/ DJGPP under WinXP broken */ |
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213 _djstat_flags |= _STAT_INODE; /* so turn off computing it for now */ |
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214 #endif |
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215 char buf[LINLEN]; |
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216 STAT sbuf2; |
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217 int slines, scols; |
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218 |
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219 if ((inf = open(file, O_RDONLY)) < 0) { |
37 | 220 if (use_savedir && errno == ENOENT) |
221 return TRUE; | |
222 else { | |
223 printf("Cannot read save game %s\n",file); | |
224 return FALSE; | |
225 } | |
36
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226 } |
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227 |
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228 encread(buf, strlen(version) + 1, inf); |
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229 |
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230 if (strcmp(buf, version) != 0) { |
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231 printf("Sorry, saved game version is out of date.\n"); |
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232 return FALSE; |
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233 } |
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234 |
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235 fstat(inf, &sbuf2); |
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236 |
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237 encread(&slines,sizeof(slines),inf); |
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238 encread(&scols,sizeof(scols),inf); |
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239 |
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240 /* |
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241 * we do not close the file so that we will have a hold of the |
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242 * inode for as long as possible |
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243 */ |
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244 |
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245 #ifdef __INTERIX |
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246 setenv("TERM","interix"); |
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247 #endif |
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248 |
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249 initscr(); |
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250 |
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251 if (slines > LINES) |
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252 { |
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253 endwin(); |
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254 printf("Sorry, original game was played on a screen with %d lines.\n",slines); |
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255 printf("Current screen only has %d lines. Unable to restore game\n",LINES); |
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256 return(FALSE); |
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257 } |
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258 |
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259 if (scols > COLS) |
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260 { |
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261 endwin(); |
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262 printf("Sorry, original game was played on a screen with %d columns.\n", scols); |
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263 printf("Current screen only has %d columns. Unable to restore game\n",COLS); |
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264 return(FALSE); |
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265 } |
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266 |
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267 cw = newwin(LINES, COLS, 0, 0); |
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268 mw = newwin(LINES, COLS, 0, 0); |
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269 hw = newwin(LINES, COLS, 0, 0); |
105
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John "Elwin" Edwards
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270 keypad(cw, 1); |
36
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271 |
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272 mpos = 0; |
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273 mvwprintw(cw, 0, 0, "%s: %s", file, ctime(&sbuf2.st_mtime)); |
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274 |
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275 /* defeat multiple restarting from the same place */ |
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276 |
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277 if (!wizard) |
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278 { |
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279 if (sbuf2.st_nlink != 1) |
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280 { |
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281 endwin(); |
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282 printf("Cannot restore from a linked file\n"); |
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283 return FALSE; |
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284 } |
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285 } |
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286 |
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287 if (rs_restore_file(inf) == FALSE) |
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288 { |
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289 endwin(); |
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290 printf("Cannot restore file\n"); |
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291 return(FALSE); |
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292 } |
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293 |
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294 #if defined(__CYGWIN__) || defined(__DJGPP__) |
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295 close(inf); |
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296 #endif |
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297 if (!wizard) |
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298 { |
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299 #ifndef __DJGPP__ |
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300 endwin(); |
37 | 301 if (!use_savedir) |
36
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302 { |
37 | 303 while((pid = fork()) < 0) |
304 sleep(1); | |
305 | |
306 /* set id to unlink file */ | |
307 if(pid == 0) | |
308 { | |
309 setuid(playuid); | |
310 setgid(playgid); | |
311 unlink(file); | |
312 exit(0); | |
313 } | |
314 /* wait for unlink to finish */ | |
315 else | |
316 { | |
317 while(wait(&ret_status) != pid) | |
318 continue; | |
319 if (ret_status < 0) | |
320 { | |
321 printf("Cannot unlink file\n"); | |
322 return FALSE; | |
323 } | |
324 } | |
36
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325 } |
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326 else |
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327 { |
37 | 328 /* Don't drop privileges, they're needed |
329 * for the unlink. */ | |
330 if (unlink(file) < 0) | |
36
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331 { |
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332 printf("Cannot unlink file\n"); |
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333 return FALSE; |
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334 } |
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335 } |
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336 #else |
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337 if (unlink(file) < 0) |
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338 { |
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339 printf("Cannot unlink file\n"); |
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340 return FALSE; |
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341 } |
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342 #endif |
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343 |
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344 } |
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345 |
85
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346 if (him->s_hpt <= 0) { |
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347 endwin(); |
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348 printf("This character is already dead.\n"); |
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349 return FALSE; |
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350 } |
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351 |
36
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352 environ = envp; |
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353 |
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354 strcpy(file_name, file); |
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355 setup(); |
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356 restscr(cw); |
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357 srand48(getpid()); |
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358 playit(); |
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359 } |