Mercurial > hg > early-roguelike
annotate rogue4/save.c @ 112:ee250e3646fd
Don't truncate player name in savefile name or log message.
The player name is stored in whoami[], which is length 80 in most games
(1024 in rogue5). Only the first 10 chars were used to create
file_name, because that buffer is the same length. Increasing the size
of file_name to 256 permits using all of whoami.
The name is also no longer truncated to 20 chars when writing the log.
All games should now be able to handle 79-character names without
collisions. Anything more would break save compatibility.
author | John "Elwin" Edwards |
---|---|
date | Sun, 23 Mar 2014 21:27:14 -0700 |
parents | d852b8f088c5 |
children | 8dd4b06a9155 |
rev | line source |
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12
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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 4.15 (Berkeley) 5/10/82 |
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5 * |
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6 * Rogue: Exploring the Dungeons of Doom |
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7 * Copyright (C) 1980, 1981, 1982 Michael Toy, Ken Arnold and Glenn Wichman |
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8 * All rights reserved. |
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9 * |
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10 * See the file LICENSE.TXT for full copyright and licensing information. |
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11 */ |
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12 |
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13 #include <curses.h> |
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14 #include <sys/types.h> |
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15 #include <sys/stat.h> |
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16 #include <errno.h> |
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17 #include <string.h> |
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18 #include <stdlib.h> |
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19 #define KERNEL |
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20 #include <signal.h> |
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21 #undef KERNEL |
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22 #include "rogue.h" |
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23 |
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24 typedef struct stat STAT; |
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25 |
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26 extern char version[], encstr[]; |
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27 extern bool _endwin; |
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28 |
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29 STAT sbuf; |
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30 |
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31 /* |
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32 * save_game: |
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33 * Implement the "save game" command |
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34 */ |
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35 /* This has to be cleaned up, these goto's are annoying. */ |
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36 save_game() |
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37 { |
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38 register FILE *savef; |
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39 register int c; |
112
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40 char buf[256]; |
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41 |
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42 /* |
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43 * get file name |
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44 */ |
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45 mpos = 0; |
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46 over: |
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47 if (file_name[0] != '\0') |
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48 { |
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49 for (;;) |
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50 { |
30 | 51 if (use_savedir) |
52 msg("Save game? "); | |
53 else | |
54 msg("save file (%s)? ", file_name); | |
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55 c = getchar(); |
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56 mpos = 0; |
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57 if (c == ESCAPE) |
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58 { |
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59 msg(""); |
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60 return FALSE; |
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61 } |
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62 else if (c == 'n' || c == 'N' || c == 'y' || c == 'Y') |
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63 break; |
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64 else |
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65 msg("please answer Y or N"); |
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66 } |
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67 if (c == 'y' || c == 'Y') |
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68 { |
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69 strcpy(buf, file_name); |
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70 goto gotfile; |
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71 } |
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72 } |
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73 |
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74 if (use_savedir) |
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75 { |
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76 /* You can't change the savefile if you're using the system |
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77 savedir, because that means you have privileges. */ |
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78 msg(""); |
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79 return FALSE; |
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80 } |
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81 |
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82 do |
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83 { |
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84 mpos = 0; |
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85 msg("file name: "); |
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86 buf[0] = '\0'; |
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87 if (get_str(buf, stdscr) == QUIT) |
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88 { |
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89 quit: |
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90 msg(""); |
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91 return FALSE; |
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92 } |
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93 mpos = 0; |
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94 gotfile: |
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95 /* |
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96 * test to see if the file exists |
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97 */ |
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98 if (stat(buf, &sbuf) >= 0) |
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99 { |
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100 for (;;) |
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101 { |
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102 msg("File exists. Do you wish to overwrite it?"); |
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103 mpos = 0; |
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104 if ((c = readchar()) == ESCAPE) |
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105 goto quit; |
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106 if (c == 'y' || c == 'Y') |
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107 break; |
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108 else if (c == 'n' || c == 'N') |
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109 goto over; |
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110 else |
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111 msg("Please answer Y or N"); |
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112 } |
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113 msg("file name: %s", buf); |
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114 } |
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115 strcpy(file_name, buf); |
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116 if ((savef = fopen(file_name, "w")) == NULL) |
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117 { |
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118 msg(strerror(errno)); /* fake perror() */ |
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119 if (use_savedir) |
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120 return FALSE; |
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121 } |
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122 } while (savef == NULL); |
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123 |
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124 /* |
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125 * write out encrpyted file (after a stat) |
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126 * The fwrite is to force allocation of the buffer before the write |
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127 */ |
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128 save_file(savef); |
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129 return TRUE; |
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130 } |
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131 |
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132 /* |
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133 * auto_save: |
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134 * Automatically save a file. This is used if a HUP signal is |
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135 * recieved |
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136 */ |
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137 void |
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138 auto_save(int sig) |
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139 { |
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140 register FILE *savef; |
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141 |
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142 md_ignore_signals(); |
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143 |
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144 if (file_name[0] != '\0' && (savef = fopen(file_name, "w")) != NULL) |
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145 save_file(savef); |
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146 endwin(); |
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147 exit(1); |
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148 } |
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149 |
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150 /* |
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151 * save_file: |
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152 * Write the saved game on the file |
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153 */ |
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154 save_file(savef) |
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155 register FILE *savef; |
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156 { |
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157 int slines = LINES; |
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158 int scols = COLS; |
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159 |
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160 /* |
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161 * close any open score file |
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162 */ |
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163 close(fd); |
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164 move(LINES-1, 0); |
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165 refresh(); |
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166 fstat(md_fileno(savef), &sbuf); |
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167 /* |
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168 * DO NOT DELETE. This forces stdio to allocate the output buffer |
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169 * so that malloc doesn't get confused on restart |
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170 */ |
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171 fwrite("junk", 1, 5, savef); |
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172 |
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173 fseek(savef, 0L, 0); |
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174 |
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175 encwrite(version,strlen(version)+1,savef); |
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176 encwrite(&slines,sizeof(slines),savef); |
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177 encwrite(&scols,sizeof(scols),savef); |
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178 msg(""); |
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179 rs_save_file(savef); |
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180 |
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181 fclose(savef); |
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182 } |
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183 |
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184 /* |
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185 * restore: |
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186 * Restore a saved game from a file with elaborate checks for file |
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187 * integrity from cheaters |
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188 */ |
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189 restore(file, envp) |
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190 register char *file; |
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191 char **envp; |
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192 { |
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193 register int inf; |
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194 register bool syml; |
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195 extern char **environ; |
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196 char buf[MAXSTR]; |
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197 STAT sbuf2; |
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198 int slines, scols; |
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199 |
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200 if (strcmp(file, "-r") == 0) |
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201 file = file_name; |
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202 |
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203 #ifdef SIGTSTP |
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204 /* |
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205 * If a process can be suspended, this code wouldn't work |
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206 */ |
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207 signal(SIGTSTP, SIG_IGN); |
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208 #endif |
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209 |
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210 if ((inf = open(file, 0)) < 0) |
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211 { |
13 | 212 if (use_savedir && errno == ENOENT) |
213 { | |
214 /* We're using a system savefile which doesn't exist. | |
215 This isn't a fatal error, it means start a new game. */ | |
216 return TRUE; | |
217 } | |
12
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218 perror(file); |
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219 return FALSE; |
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220 } |
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221 |
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222 fflush(stdout); |
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223 encread(buf, strlen(version) + 1, inf); |
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224 if (strcmp(buf, version) != 0) |
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225 { |
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226 printf("Sorry, saved game is out of date.\n"); |
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227 return FALSE; |
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228 } |
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229 |
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230 fstat(inf, &sbuf2); |
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231 fflush(stdout); |
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232 syml = issymlink(file); |
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233 |
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234 fflush(stdout); |
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235 |
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236 encread(&slines,sizeof(slines),inf); |
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237 encread(&scols,sizeof(scols),inf); |
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238 |
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239 /* |
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240 * we do not close the file so that we will have a hold of the |
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241 * inode for as long as possible |
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242 */ |
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243 |
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244 initscr(); |
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245 |
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246 if (slines > LINES) |
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247 { |
85
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248 endwin(); |
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249 printf("Sorry, original game was played on a screen with %d lines.\n",slines); |
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250 printf("Current screen only has %d lines. Unable to restore game\n",LINES); |
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251 return(FALSE); |
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252 } |
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253 |
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254 if (scols > COLS) |
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255 { |
85
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256 endwin(); |
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257 printf("Sorry, original game was played on a screen with %d columns.\n",scols); |
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258 printf("Current screen only has %d columns. Unable to restore game\n",COLS); |
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259 return(FALSE); |
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260 } |
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261 |
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262 hw = newwin(LINES, COLS, 0, 0); |
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263 keypad(stdscr,1); |
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264 |
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265 mpos = 0; |
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266 mvprintw(0, 0, "%s: %s", file, ctime(&sbuf2.st_mtime)); |
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267 |
84
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268 if (rs_restore_file(inf) == FALSE) |
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269 { |
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270 endwin(); |
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271 printf("Cannot restore file\n"); |
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272 return(FALSE); |
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273 } |
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274 |
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275 if ( |
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276 #ifdef WIZARD |
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277 !wizard && |
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278 #endif |
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279 md_unlink(file) < 0) |
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280 { |
85
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281 endwin(); |
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282 printf("Cannot unlink file\n"); |
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283 return FALSE; |
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284 } |
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285 |
12
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286 /* |
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287 * defeat multiple restarting from the same place |
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288 */ |
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289 #ifdef WIZARD |
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290 if (!wizard) |
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291 #endif |
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292 if (sbuf2.st_nlink != 1 || syml) |
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293 { |
85
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294 endwin(); |
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295 printf("Cannot restore from a linked file\n"); |
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296 return FALSE; |
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297 } |
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298 |
85
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299 if (pstats.s_hpt <= 0) { |
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300 endwin(); |
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301 printf("This character is already dead.\n"); |
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302 return FALSE; |
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303 } |
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304 |
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305 #ifdef SIGTSTP |
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306 signal(SIGTSTP, tstp); |
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307 #endif |
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308 environ = envp; |
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309 strcpy(file_name, file); |
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310 setup(); |
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311 clearok(curscr, TRUE); |
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312 touchwin(stdscr); |
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313 srand(getpid()); |
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314 msg("file name: %s", file); |
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315 status(); |
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316 playit(); |
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317 return 0; |
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318 } |
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319 |
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320 /* |
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321 * encwrite: |
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322 * Perform an encrypted write |
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323 */ |
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324 encwrite(starta, size, outf) |
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325 void *starta; |
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326 unsigned int size; |
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327 register FILE *outf; |
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328 { |
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329 register char *ep; |
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330 register char *start = (char *) starta; |
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331 ep = encstr; |
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332 |
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333 while (size--) |
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334 { |
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335 putc(*start++ ^ *ep++, outf); |
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336 if (*ep == '\0') |
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337 ep = encstr; |
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338 } |
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339 } |
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340 |
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341 /* |
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342 * encread: |
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343 * Perform an encrypted read |
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344 */ |
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345 encread(starta, size, inf) |
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346 register void *starta; |
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347 unsigned int size; |
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348 register int inf; |
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349 { |
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350 register char *ep; |
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351 register int read_size; |
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352 register char *start = (char *) starta; |
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353 |
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354 if ((read_size = read(inf, start, size)) == -1 || read_size == 0) |
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355 return read_size; |
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356 |
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357 ep = encstr; |
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358 |
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359 while (size--) |
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360 { |
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361 *start++ ^= *ep++; |
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362 if (*ep == '\0') |
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363 ep = encstr; |
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364 } |
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365 |
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366 return read_size; |
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367 } |