Mercurial > hg > early-roguelike
annotate arogue7/save.c @ 168:82b2a046d151
arogue7: fix inventory display bug again.
Removing the call to msg() in restore() resulted in msgw remaining as
it was when the game was saved. This results in another display glitch
like that fixed by r163. Adding an empty message puts msgw into a
reliable state.
author | John "Elwin" Edwards |
---|---|
date | Tue, 30 Jun 2015 12:00:02 -0400 |
parents | 2d94c32a709e |
children | aa8e1fc62926 |
rev | line source |
---|---|
125
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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 "rogue.h" |
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28 #include <fcntl.h> |
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29 #include <errno.h> |
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30 #include "mach_dep.h" |
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31 #ifdef PC7300 |
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32 #include "sys/window.h" |
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33 extern struct uwdata wdata; |
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34 #endif |
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35 |
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36 #if u370 || uts |
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37 #define ENCREAD(b,n,fd) read(fd,b,n) |
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38 #define ENCWRITE(b,n,fd) write(fd,b,n) |
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39 #endif |
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40 #ifndef ENCREAD |
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41 #define ENCREAD encread |
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42 #define ENCWRITE encwrite |
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43 #endif |
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44 |
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45 typedef struct stat STAT; |
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46 |
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47 extern char version[], encstr[]; |
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48 /* extern bool _endwin; */ |
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49 extern int errno; |
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50 |
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51 STAT sbuf; |
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52 |
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53 bool |
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54 save_game() |
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55 { |
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56 register int savefd; |
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57 register int c; |
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58 char buf[LINELEN]; |
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59 |
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60 /* |
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61 * get file name |
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62 */ |
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63 mpos = 0; |
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64 if (file_name[0] != '\0') |
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65 { |
128 | 66 if (use_savedir) |
67 msg("Save game? "); | |
68 else | |
69 msg("Save file (%s)? ", file_name); | |
125
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70 do |
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71 { |
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72 c = readchar(); |
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73 if (c == ESCAPE) return(0); |
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74 } while (c != 'n' && c != 'N' && c != 'y' && c != 'Y'); |
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75 mpos = 0; |
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76 if (c == 'y' || c == 'Y') |
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77 { |
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78 msg("File name: %s", file_name); |
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79 goto gotfile; |
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80 } |
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81 } |
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82 |
128 | 83 if (use_savedir) |
84 { | |
85 msg(""); | |
86 return FALSE; | |
87 } | |
88 | |
125
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89 do |
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90 { |
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91 msg("File name: "); |
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92 mpos = 0; |
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93 buf[0] = '\0'; |
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94 if (get_str(buf, msgw) == QUIT) |
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95 { |
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96 msg(""); |
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97 return FALSE; |
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98 } |
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99 strcpy(file_name, buf); |
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100 gotfile: |
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101 if ((savefd = open(file_name, O_WRONLY|O_CREAT|O_TRUNC,0666)) < 0) |
128 | 102 { |
125
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103 msg(strerror(errno)); /* fake perror() */ |
128 | 104 if (use_savedir) |
105 return FALSE; | |
106 } | |
125
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107 } while (savefd < 0); |
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108 |
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109 /* |
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110 * write out encrpyted file (after a stat) |
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111 */ |
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112 if (save_file(savefd) == FALSE) { |
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113 msg("Cannot create save file."); |
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114 unlink(file_name); |
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115 return(FALSE); |
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116 } |
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117 else return(TRUE); |
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118 } |
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119 |
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120 /* |
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121 * automatically save a file. This is used if a HUP signal is |
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122 * recieved |
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123 */ |
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124 void |
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125 auto_save(sig) |
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126 int sig; |
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127 { |
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128 register int savefd; |
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129 register int i; |
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130 |
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131 for (i = 0; i < NSIG; i++) |
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132 signal(i, SIG_IGN); |
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133 if (file_name[0] != '\0' && |
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134 pstats.s_hpt > 0 && |
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135 (savefd = open(file_name, O_WRONLY|O_CREAT|O_TRUNC, 0600)) >= 0) |
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136 save_file(savefd); |
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137 endwin(); |
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138 #ifdef PC7300 |
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139 endhardwin(); |
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140 #endif |
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141 exit(1); |
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142 } |
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143 |
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144 /* |
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145 * write the saved game on the file |
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146 */ |
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147 bool |
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148 save_file(savefd) |
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149 register int savefd; |
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150 { |
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151 register unsigned num_to_write, num_written; |
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152 FILE *savef; |
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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 lseek(savefd, 0L, 0); |
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158 fstat(savefd, &sbuf); |
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159 num_to_write = strlen(version) + 1; |
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160 num_written = ENCWRITE(version, num_to_write, savefd); |
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161 sprintf(prbuf,"%d x %d\n", LINES, COLS); |
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162 ENCWRITE(prbuf,80,savefd); |
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163 savef = (FILE *) fdopen(savefd,"wb"); |
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164 ret = rs_save_file(savef); |
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165 fclose(savef); |
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166 if (num_to_write == num_written && ret == 0) return(TRUE); |
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167 else return(FALSE); |
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168 } |
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169 |
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170 restore(file, envp) |
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171 register char *file; |
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172 char **envp; |
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173 { |
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174 register int inf; |
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175 extern char **environ; |
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176 char buf[LINELEN]; |
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177 STAT sbuf2; |
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178 int oldcol, oldline; /* Old number of columns and lines */ |
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179 |
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180 if (strcmp(file, "-r") == 0) |
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181 file = file_name; |
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182 if ((inf = open(file, 0)) < 0) |
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183 { |
128 | 184 if (use_savedir && errno == ENOENT) |
185 { | |
186 return TRUE; | |
187 } | |
125
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188 perror(file); |
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189 return FALSE; |
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190 } |
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191 |
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192 fflush(stdout); |
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193 ENCREAD(buf, strlen(version) + 1, inf); |
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194 if (strcmp(buf, version) != 0) |
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195 { |
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196 printf("Sorry, saved game is out of date.\n"); |
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197 return FALSE; |
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198 } |
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199 |
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200 /* |
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201 * Get the lines and columns from the previous game |
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202 */ |
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203 |
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204 ENCREAD(buf, 80, inf); |
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205 sscanf(buf, "%d x %d\n", &oldline, &oldcol); |
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206 fstat(inf, &sbuf2); |
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207 fflush(stdout); |
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208 |
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209 initscr(); |
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210 |
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211 if (COLS < oldcol || LINES < oldline) { |
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212 endwin(); |
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213 printf("Cannot restart the game on a smaller screen.\n"); |
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214 return FALSE; |
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215 } |
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216 |
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217 setup(); |
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218 /* |
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219 * Set up windows |
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220 */ |
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221 cw = newwin(lines, cols, 0, 0); |
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222 mw = newwin(lines, cols, 0, 0); |
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223 hw = newwin(lines, cols, 0, 0); |
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224 msgw = newwin(4, cols, 0, 0); |
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225 |
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226 keypad(cw,1); |
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227 keypad(msgw,1); |
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228 |
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229 if (rs_restore_file(inf) != 0) |
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230 { |
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231 printf("Cannot restore file\n"); |
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232 close(inf); |
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233 return(FALSE); |
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234 } |
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235 |
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236 cols = COLS; |
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237 lines = LINES; |
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238 if (cols > 85) cols = 85; |
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239 if (lines > 24) lines = 24; |
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240 |
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241 mpos = 0; |
168
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165
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242 msg(""); |
165
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163
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243 /*msg("%s: %s", file, ctime(&sbuf2.st_mtime));*/ |
125
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244 |
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245 /* |
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246 * defeat multiple restarting from the same place |
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247 */ |
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248 if (!wizard && md_unlink_open_file(file, inf) < 0) { |
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249 printf("Cannot unlink file\n"); |
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250 return FALSE; |
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251 } |
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252 |
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253 environ = envp; |
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254 strcpy(file_name, file); |
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255 setup(); |
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256 clearok(curscr, TRUE); |
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257 touchwin(cw); |
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258 srand(getpid()); |
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259 playit(); |
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260 /*NOTREACHED*/ |
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261 return(0); |
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262 } |
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263 |
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264 #define ENCWBSIZ 1024 |
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265 /* |
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266 * perform an encrypted write |
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267 */ |
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268 encwrite(start, size, outf) |
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269 register char *start; |
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270 register unsigned size; |
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271 register int outf; |
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272 { |
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273 register char *ep; |
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274 register int i = 0; |
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275 int num_written = 0; |
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276 auto char buf[ENCWBSIZ]; |
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277 |
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278 ep = encstr; |
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279 |
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280 while (size--) |
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281 { |
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282 buf[i++] = *start++ ^ *ep++ ; |
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283 if (*ep == '\0') |
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284 ep = encstr; |
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285 |
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286 if (i == ENCWBSIZ || size == 0) { |
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287 if (write(outf, buf, (unsigned)i) < i) |
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288 return(num_written); |
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289 else { |
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290 num_written += i; |
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291 i = 0; |
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292 } |
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293 } |
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294 } |
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295 return(num_written); |
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296 } |
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297 |
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298 /* |
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299 * perform an encrypted read |
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300 */ |
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301 encread(start, size, inf) |
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302 register char *start; |
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303 register unsigned size; |
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304 register int inf; |
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305 { |
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306 register char *ep; |
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307 register int read_size; |
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308 |
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309 if ((read_size = read(inf, start, size)) == -1 || read_size == 0) |
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310 return read_size; |
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311 |
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312 ep = encstr; |
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313 |
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314 size = read_size; |
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315 while (size--) |
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316 { |
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317 *start++ ^= *ep++; |
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318 if (*ep == '\0') |
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319 ep = encstr; |
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320 } |
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321 return read_size; |
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322 } |