Mercurial > hg > early-roguelike
annotate arogue7/save.c @ 317:aab761616489 default tip
Rearrange some Autoconf files.
Autoconf was failing to detect install-sh at the top level and needed
some explicit directions. It also wants config.guess and config.sub to
be provided too.
A few other macros have also been updated.
author | John "Elwin" Edwards |
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date | Tue, 05 Sep 2023 20:05:24 -0400 |
parents | 70aa5808c782 |
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rev | line source |
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1 /* |
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2 * save.c - save and restore routines |
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3 * |
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4 * Advanced Rogue |
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5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T |
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6 * All rights reserved. |
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7 * |
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8 * Based on "Rogue: Exploring the Dungeons of Doom" |
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman |
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10 * All rights reserved. |
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11 * |
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12 * See the file LICENSE.TXT for full copyright and licensing information. |
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13 */ |
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14 |
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15 /* |
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16 * save and restore routines |
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17 * |
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18 */ |
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19 |
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20 #include "curses.h" |
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21 #include <ctype.h> |
126 | 22 #include <stdlib.h> |
23 #include <string.h> | |
125
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24 #include <sys/types.h> |
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25 #include <sys/stat.h> |
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26 #include <signal.h> |
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27 #include <time.h> |
125
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28 #include "rogue.h" |
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29 #include <fcntl.h> |
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30 #include <errno.h> |
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31 #include "mach_dep.h" |
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32 #ifdef PC7300 |
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33 #include "sys/window.h" |
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34 extern struct uwdata wdata; |
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35 #endif |
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36 |
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37 #if u370 || uts |
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38 #define ENCREAD(b,n,f) read(md_fileno(f),b,n) |
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39 #define ENCWRITE(b,n,f) write(md_fileno(f),b,n) |
125
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40 #endif |
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41 #ifndef ENCREAD |
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42 #define ENCREAD encread |
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43 #define ENCWRITE encwrite |
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44 #endif |
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45 |
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46 bool save_file(FILE *savef); |
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47 |
125
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48 typedef struct stat STAT; |
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49 |
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50 extern char version[], encstr[]; |
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51 /* extern bool _endwin; */ |
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52 extern int errno; |
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53 |
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54 STAT sbuf; |
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55 |
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56 bool |
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57 save_game(void) |
125
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58 { |
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59 FILE *savefi = NULL; |
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60 register int c; |
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61 char buf[LINELEN]; |
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62 |
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63 /* |
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64 * get file name |
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65 */ |
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66 mpos = 0; |
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67 if (file_name[0] != '\0') |
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68 { |
128 | 69 if (use_savedir) |
70 msg("Save game? "); | |
71 else | |
72 msg("Save file (%s)? ", file_name); | |
125
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73 do |
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74 { |
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75 c = readchar(); |
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76 if (c == ESCAPE) return(0); |
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77 } while (c != 'n' && c != 'N' && c != 'y' && c != 'Y'); |
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78 mpos = 0; |
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79 if (c == 'y' || c == 'Y') |
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80 { |
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81 msg("File name: %s", file_name); |
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82 goto gotfile; |
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83 } |
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84 } |
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85 |
128 | 86 if (use_savedir) |
87 { | |
88 msg(""); | |
89 return FALSE; | |
90 } | |
91 | |
125
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92 do |
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93 { |
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94 msg("File name: "); |
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95 mpos = 0; |
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96 buf[0] = '\0'; |
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97 if (get_str(buf, msgw) == QUIT) |
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98 { |
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99 msg(""); |
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100 return FALSE; |
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101 } |
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102 strcpy(file_name, buf); |
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103 gotfile: |
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104 if ((savefi = fopen(file_name, "w")) == NULL) |
128 | 105 { |
125
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106 msg(strerror(errno)); /* fake perror() */ |
128 | 107 if (use_savedir) |
108 return FALSE; | |
109 } | |
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110 } while (savefi == NULL); |
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111 |
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112 /* |
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113 * write out encrpyted file (after a stat) |
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114 */ |
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115 if (save_file(savefi) == FALSE) { |
125
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116 msg("Cannot create save file."); |
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117 md_unlink(file_name); |
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118 return(FALSE); |
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119 } |
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120 else return(TRUE); |
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121 } |
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122 |
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123 /* |
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124 * automatically save a file. This is used if a HUP signal is |
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125 * recieved |
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126 */ |
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127 void |
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128 auto_save(int sig) |
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129 { |
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130 FILE *savefi; |
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131 register int i; |
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132 |
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133 for (i = 0; i < NSIG; i++) |
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134 signal(i, SIG_IGN); |
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135 if (file_name[0] != '\0' && |
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136 pstats.s_hpt > 0 && |
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137 (savefi = fopen(file_name, "w")) != NULL) |
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138 save_file(savefi); |
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139 endwin(); |
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140 #ifdef PC7300 |
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141 endhardwin(); |
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142 #endif |
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143 exit(1); |
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144 } |
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145 |
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146 /* |
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147 * write the saved game on the file |
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148 */ |
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149 bool |
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150 save_file(FILE *savef) |
125
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151 { |
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152 register unsigned num_to_write, num_written; |
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153 int ret; |
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154 |
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155 wmove(cw, lines-1, 0); |
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156 draw(cw); |
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157 fseek(savef, 0L, SEEK_SET); |
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158 stat(file_name, &sbuf); |
125
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159 num_to_write = strlen(version) + 1; |
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160 num_written = ENCWRITE(version, num_to_write, savef); |
125
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161 sprintf(prbuf,"%d x %d\n", LINES, COLS); |
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162 ENCWRITE(prbuf,80,savef); |
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163 ret = rs_save_file(savef); |
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164 fclose(savef); |
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165 if (num_to_write == num_written && ret == 0) return(TRUE); |
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166 else return(FALSE); |
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167 } |
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168 |
219
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169 bool |
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170 restore(char *file, char *envp[]) |
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171 { |
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172 FILE *inf; |
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173 extern char **environ; |
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174 char buf[LINELEN]; |
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175 STAT sbuf2; |
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176 int oldcol, oldline; /* Old number of columns and lines */ |
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177 |
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178 if (strcmp(file, "-r") == 0) |
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179 file = file_name; |
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180 if ((inf = fopen(file, "r")) == NULL) |
125
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181 { |
128 | 182 if (use_savedir && errno == ENOENT) |
183 { | |
184 return TRUE; | |
185 } | |
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186 perror(file); |
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187 return FALSE; |
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188 } |
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189 |
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190 fflush(stdout); |
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191 ENCREAD(buf, strlen(version) + 1, inf); |
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192 if (strcmp(buf, version) != 0) |
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193 { |
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194 printf("Sorry, saved game is out of date.\n"); |
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195 return FALSE; |
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196 } |
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197 |
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198 /* |
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199 * Get the lines and columns from the previous game |
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200 */ |
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201 |
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202 ENCREAD(buf, 80, inf); |
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203 sscanf(buf, "%d x %d\n", &oldline, &oldcol); |
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204 stat(file, &sbuf2); |
125
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205 fflush(stdout); |
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206 |
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207 initscr(); |
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208 |
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209 if (COLS < oldcol || LINES < oldline) { |
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210 endwin(); |
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211 printf("Cannot restart the game on a smaller screen.\n"); |
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212 return FALSE; |
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213 } |
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214 |
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215 setup(); |
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216 /* |
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217 * Set up windows |
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218 */ |
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219 cw = newwin(lines, cols, 0, 0); |
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220 mw = newwin(lines, cols, 0, 0); |
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221 hw = newwin(lines, cols, 0, 0); |
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222 msgw = newwin(4, cols, 0, 0); |
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223 |
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224 keypad(cw,1); |
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225 keypad(msgw,1); |
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226 |
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227 if (rs_restore_file(inf) != 0) |
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228 { |
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229 printf("Cannot restore file\n"); |
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230 fclose(inf); |
125
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231 return(FALSE); |
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232 } |
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233 |
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234 cols = COLS; |
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235 lines = LINES; |
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236 if (cols > 85) cols = 85; |
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237 if (lines > 24) lines = 24; |
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238 |
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239 mpos = 0; |
168
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165
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240 msg(""); |
280
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241 msg("%s: %s", file, ctime(&sbuf2.st_mtime)); |
125
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242 |
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243 /* |
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244 * defeat multiple restarting from the same place |
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245 */ |
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246 if (!wizard && md_unlink_open_file(file, inf) < 0) { |
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247 printf("Cannot unlink file\n"); |
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248 return FALSE; |
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249 } |
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250 |
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251 environ = envp; |
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252 strcpy(file_name, file); |
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253 setup(); |
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254 clearok(curscr, TRUE); |
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255 touchwin(cw); |
252
3d4252fa2ed3
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219
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256 srand(md_random_seed()); |
125
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257 playit(); |
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258 /*NOTREACHED*/ |
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259 return(0); |
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260 } |
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261 |
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262 #define ENCWBSIZ 1024 |
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263 /* |
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264 * perform an encrypted write |
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265 */ |
219
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266 int |
279
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267 encwrite(char *start, unsigned int size, FILE *outf) |
125
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268 { |
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269 register char *ep; |
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270 register int i = 0; |
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271 int num_written = 0; |
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272 auto char buf[ENCWBSIZ]; |
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273 |
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274 ep = encstr; |
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275 |
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276 while (size--) |
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277 { |
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278 buf[i++] = *start++ ^ *ep++ ; |
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279 if (*ep == '\0') |
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280 ep = encstr; |
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281 |
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282 if (i == ENCWBSIZ || size == 0) { |
279
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283 if (fwrite(buf, 1, (unsigned)i, outf) < i) |
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284 return(num_written); |
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285 else { |
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286 num_written += i; |
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287 i = 0; |
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288 } |
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289 } |
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290 } |
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291 return(num_written); |
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292 } |
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293 |
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294 /* |
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295 * perform an encrypted read |
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296 */ |
219
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297 int |
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298 encread(char *start, unsigned int size, FILE *inf) |
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299 { |
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300 register char *ep; |
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301 register int read_size; |
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302 |
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303 if ((read_size = fread(start, 1, size, inf)) == 0) |
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304 return read_size; |
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305 |
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306 ep = encstr; |
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307 |
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308 size = read_size; |
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309 while (size--) |
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310 { |
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311 *start++ ^= *ep++; |
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312 if (*ep == '\0') |
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313 ep = encstr; |
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314 } |
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315 return read_size; |
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316 } |