annotate arogue7/save.c @ 126:b786053d2f37

arogue7: add missing header includes.
author John "Elwin" Edwards
date Fri, 08 May 2015 16:45:41 -0400
parents adfa37e67084
children c697782a9b37
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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
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22 #include <stdlib.h>
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23 #include <string.h>
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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 {
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66 msg("Save file (%s)? ", file_name);
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67 do
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68 {
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69 c = readchar();
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70 if (c == ESCAPE) return(0);
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71 } while (c != 'n' && c != 'N' && c != 'y' && c != 'Y');
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72 mpos = 0;
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73 if (c == 'y' || c == 'Y')
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74 {
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75 msg("File name: %s", file_name);
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76 goto gotfile;
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77 }
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78 }
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79
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80 do
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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, msgw) == QUIT)
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86 {
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87 msg("");
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88 return FALSE;
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89 }
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90 strcpy(file_name, buf);
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91 gotfile:
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92 if ((savefd = open(file_name, O_WRONLY|O_CREAT|O_TRUNC,0666)) < 0)
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93 msg(strerror(errno)); /* fake perror() */
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94 } while (savefd < 0);
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95
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96 /*
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97 * write out encrpyted file (after a stat)
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98 */
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99 if (save_file(savefd) == FALSE) {
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100 msg("Cannot create save file.");
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101 unlink(file_name);
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102 return(FALSE);
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103 }
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104 else return(TRUE);
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105 }
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106
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107 /*
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108 * automatically save a file. This is used if a HUP signal is
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109 * recieved
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110 */
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111 void
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112 auto_save(sig)
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113 int sig;
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114 {
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115 register int savefd;
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116 register int i;
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117
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118 for (i = 0; i < NSIG; i++)
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119 signal(i, SIG_IGN);
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120 if (file_name[0] != '\0' &&
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121 pstats.s_hpt > 0 &&
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122 (savefd = open(file_name, O_WRONLY|O_CREAT|O_TRUNC, 0600)) >= 0)
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123 save_file(savefd);
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124 endwin();
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125 #ifdef PC7300
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126 endhardwin();
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127 #endif
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128 exit(1);
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129 }
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130
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131 /*
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132 * write the saved game on the file
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133 */
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134 bool
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135 save_file(savefd)
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136 register int savefd;
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137 {
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138 register unsigned num_to_write, num_written;
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139 FILE *savef;
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140 int ret;
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141
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142 wmove(cw, lines-1, 0);
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143 draw(cw);
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144 lseek(savefd, 0L, 0);
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145 fstat(savefd, &sbuf);
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146 num_to_write = strlen(version) + 1;
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147 num_written = ENCWRITE(version, num_to_write, savefd);
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148 sprintf(prbuf,"%d x %d\n", LINES, COLS);
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149 ENCWRITE(prbuf,80,savefd);
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John "Elwin" Edwards
parents:
diff changeset
150 savef = (FILE *) fdopen(savefd,"wb");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
151 ret = rs_save_file(savef);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
152 fclose(savef);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
153 if (num_to_write == num_written && ret == 0) return(TRUE);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
154 else return(FALSE);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
155 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
156
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
157 restore(file, envp)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
158 register char *file;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
159 char **envp;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
160 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
161 register int inf;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
162 extern char **environ;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
163 char buf[LINELEN];
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
164 STAT sbuf2;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
165 int oldcol, oldline; /* Old number of columns and lines */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
166
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
167 if (strcmp(file, "-r") == 0)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
168 file = file_name;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
169 if ((inf = open(file, 0)) < 0)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
170 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
171 perror(file);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
172 return FALSE;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
173 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
174
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
175 fflush(stdout);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
176 ENCREAD(buf, strlen(version) + 1, inf);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
177 if (strcmp(buf, version) != 0)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
178 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
179 printf("Sorry, saved game is out of date.\n");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
180 return FALSE;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
181 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
182
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
183 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
184 * Get the lines and columns from the previous game
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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185 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
186
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
187 ENCREAD(buf, 80, inf);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
188 sscanf(buf, "%d x %d\n", &oldline, &oldcol);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
189 fstat(inf, &sbuf2);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
190 fflush(stdout);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
191
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
192 initscr();
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
193
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
194 if (COLS < oldcol || LINES < oldline) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
195 endwin();
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
196 printf("Cannot restart the game on a smaller screen.\n");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
197 return FALSE;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
198 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
199
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
200 setup();
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
201 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
202 * Set up windows
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
203 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
204 cw = newwin(lines, cols, 0, 0);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
205 mw = newwin(lines, cols, 0, 0);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
206 hw = newwin(lines, cols, 0, 0);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
207 msgw = newwin(4, cols, 0, 0);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
208
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
209 keypad(cw,1);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
210 keypad(msgw,1);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
211
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
212 if (rs_restore_file(inf) != 0)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
213 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
214 printf("Cannot restore file\n");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
215 close(inf);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
216 return(FALSE);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
217 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
218
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
219 cols = COLS;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
220 lines = LINES;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
221 if (cols > 85) cols = 85;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
222 if (lines > 24) lines = 24;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
223
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
224 mpos = 0;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
225 mvwprintw(msgw, 0, 0, "%s: %s", file, ctime(&sbuf2.st_mtime));
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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parents:
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226
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
227 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
228 * defeat multiple restarting from the same place
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
229 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
230 if (!wizard && md_unlink_open_file(file, inf) < 0) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
231 printf("Cannot unlink file\n");
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
232 return FALSE;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
233 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
234
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
235 environ = envp;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
236 strcpy(file_name, file);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
237 setup();
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
238 clearok(curscr, TRUE);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
239 touchwin(cw);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
240 srand(getpid());
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
241 playit();
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
242 /*NOTREACHED*/
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
243 return(0);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
244 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
245
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
246 #define ENCWBSIZ 1024
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
247 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
248 * perform an encrypted write
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
249 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
250 encwrite(start, size, outf)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
251 register char *start;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
252 register unsigned size;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
253 register int outf;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
254 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
255 register char *ep;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
256 register int i = 0;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
257 int num_written = 0;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
258 auto char buf[ENCWBSIZ];
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
259
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
260 ep = encstr;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
261
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
262 while (size--)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
263 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
264 buf[i++] = *start++ ^ *ep++ ;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
265 if (*ep == '\0')
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
266 ep = encstr;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
267
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
268 if (i == ENCWBSIZ || size == 0) {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
269 if (write(outf, buf, (unsigned)i) < i)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
270 return(num_written);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
271 else {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
272 num_written += i;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
273 i = 0;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
274 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
275 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
276 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
277 return(num_written);
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
278 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
279
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
280 /*
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
281 * perform an encrypted read
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
282 */
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
283 encread(start, size, inf)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
284 register char *start;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
285 register unsigned size;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
286 register int inf;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
287 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
288 register char *ep;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
289 register int read_size;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
290
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
291 if ((read_size = read(inf, start, size)) == -1 || read_size == 0)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
292 return read_size;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
293
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
294 ep = encstr;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
295
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
296 size = read_size;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
297 while (size--)
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
298 {
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
299 *start++ ^= *ep++;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
300 if (*ep == '\0')
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
301 ep = encstr;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
302 }
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
303 return read_size;
adfa37e67084 Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
304 }