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annotate xrogue/save.c @ 201:6fb21004a981

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Fix some preprocessor directives. Include process.h in the right place, and use the correct definition of PATH_MAX, when compiling on Windows.
author John "Elwin" Edwards
date Wed, 12 Aug 2015 16:56:19 -0400
parents 443c8bd3e290
children 6e6fb0955095
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133
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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 XRogue: Expeditions into the Dungeons of Doom
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5 Copyright (C) 1991 Robert Pietkivitch
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6 All rights reserved.
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7
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8 Based on "Advanced Rogue"
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9 Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
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10 All rights reserved.
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11
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12 Based on "Rogue: Exploring the Dungeons of Doom"
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13 Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
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14 All rights reserved.
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15
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16 See the file LICENSE.TXT for full copyright and licensing information.
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17 */
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18
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19 #include <curses.h>
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20 #include <ctype.h>
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21 #include <string.h>
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22 #include <sys/types.h>
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23 #include <signal.h>
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24 #include <fcntl.h>
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25 #include <errno.h>
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26 #include "rogue.h"
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27 #include "mach_dep.h"
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28
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29 extern char version[];
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30 extern unsigned char encstr[];
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31 extern int big_endian;
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32
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33 bool
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34 save_game()
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35 {
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36 register FILE *savef;
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37 register int c;
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38 char buf[LINELEN];
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39
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40 /*
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41 * get file name
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42 */
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43 mpos = 0;
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44 if (file_name[0] != '\0')
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45 {
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46 if (use_savedir)
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47 msg("Save game? ");
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48 else
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49 msg("Save file (%s)? ", file_name);
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50 do
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51 {
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52 c = wgetch(cw);
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53 if (c == ESC) return(0);
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54 } while (c != 'n' && c != 'N' && c != 'y' && c != 'Y');
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55 mpos = 0;
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56 if (c == 'y' || c == 'Y')
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57 {
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58 msg("File name: %s", file_name);
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59 goto gotfile;
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60 }
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61 }
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62 else
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63 goto gotfile; /* must save to file restored from */
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64
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65 if (use_savedir) {
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66 msg("");
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67 return FALSE;
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68 }
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69
133
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70 do
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71 {
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72 msg("File name: ");
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73 mpos = 0;
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74 buf[0] = '\0';
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75 if (get_str(buf, msgw) == QUIT)
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76 {
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77 msg("");
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78 return FALSE;
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79 }
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80 strcpy(file_name, buf);
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81 gotfile:
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82
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83 if ((savef = fopen(file_name, "wb")) == NULL) {
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84 msg(strerror(errno));
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85 if (use_savedir)
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86 return FALSE;
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87 }
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88 } while (savef == NULL);
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89
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90 msg("");
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91 /*
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92 * write out encrpyted file
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93 */
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94 if (save_file(savef) == FALSE) {
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95 fclose(savef);
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96 msg("Cannot create save file.");
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97 unlink(file_name);
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98 return(FALSE);
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99 }
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100 fclose(savef);
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101 return(TRUE);
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102 }
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103
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104 /*
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105 * automatically save a file. This is used if a HUP signal is recieved
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106 */
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107
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108 void
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109 auto_save(int sig)
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110 {
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111 register FILE *savef = NULL;
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112 register int i;
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113 NOOP(sig);
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114 for (i = 0; i < NSIG; i++)
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115 signal(i, SIG_IGN);
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116 if (file_name[0] != '\0' &&
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117 pstats.s_hpt > 0 &&
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118 ((savef = fopen(file_name, "wb")) != NULL))
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119 save_file(savef);
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120 fclose(savef);
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121 exit_game(EXIT_ENDWIN);
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122 }
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123
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124 /*
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125 * write the saved game on the file
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126 */
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127
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128 bool
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129 save_file(savef)
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130 register FILE *savef;
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131 {
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132 int slines = LINES;
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133 int scols = COLS;
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134 int ret = FALSE;
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135 int endian = 0x01020304;
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136 big_endian = ( *((char *)&endian) == 0x01 );
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137
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138 wmove(cw, LINES-1, 0);
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139 draw(cw);
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140
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141 encwrite(version,strlen(version)+1,savef);
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142 rs_write_int(savef,slines);
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143 rs_write_int(savef,scols);
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144
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145 ret = rs_save_file(savef);
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146
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147 return(ret);
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148 }
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149
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150 restore(file, envp)
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diff changeset
151 register char *file;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
152 char **envp;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
153 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
154 register int inf;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
155 extern char **environ;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
156 char buf[LINELEN];
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
157 int endian = 0x01020304;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
158 big_endian = ( *((char *)&endian) == 0x01 );
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
159
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
160 if (strcmp(file, "-r") == 0)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
161 file = file_name;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
162
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
163 if ((inf = open(file, O_RDONLY)) < 0)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
164 {
136
1fbdefa82533 xrogue: initial support for the -n option.
John "Elwin" Edwards
parents: 135
diff changeset
165 if (use_savedir && errno == ENOENT)
1fbdefa82533 xrogue: initial support for the -n option.
John "Elwin" Edwards
parents: 135
diff changeset
166 {
1fbdefa82533 xrogue: initial support for the -n option.
John "Elwin" Edwards
parents: 135
diff changeset
167 /* No game in progress, so one will be started. */
1fbdefa82533 xrogue: initial support for the -n option.
John "Elwin" Edwards
parents: 135
diff changeset
168 return TRUE;
1fbdefa82533 xrogue: initial support for the -n option.
John "Elwin" Edwards
parents: 135
diff changeset
169 }
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
170 perror(file);
136
1fbdefa82533 xrogue: initial support for the -n option.
John "Elwin" Edwards
parents: 135
diff changeset
171 return FALSE;
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
172 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
173
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
174 fflush(stdout);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
175
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
176 encread(buf, strlen(version) + 1, inf);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
177
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
178 if (strcmp(buf, version) != 0)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
179 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
180 printf("Sorry, saved game is out of date.\n");
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
181 return FALSE;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
182 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
183
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
184 fflush(stdout);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
185
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
186 rs_read_int(inf,&lines);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
187 rs_read_int(inf,&cols);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
188
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
189 initscr();
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
190
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
191 if (lines > LINES)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
192 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
193 endwin();
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
194 printf("Sorry, original game was played on a screen with %d lines.\n",lines);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
195 printf("Current screen only has %d lines. Unable to restore game\n",LINES);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
196 return(FALSE);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
197 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
198 if (cols > COLS)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
199 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
200 endwin();
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
201 printf("Sorry, original game was played on a screen with %d columns.\n",cols);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
202 printf("Current screen only has %d columns. Unable to restore game\n",COLS);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
203 return(FALSE);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
204 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
205
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
206 typeahead(-1);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
207 setup();
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
208 cw = newwin(LINES, COLS, 0, 0);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
209 mw = newwin(LINES, COLS, 0, 0);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
210 hw = newwin(LINES, COLS, 0, 0);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
211 msgw = newwin(4, cols, 0, 0);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
212
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
213 keypad(cw, TRUE);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
214 keypad(hw, TRUE);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
215
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
216 if (rs_restore_file(inf) == FALSE)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
217 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
218 endwin();
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
219 printf("Cannot restore file\n");
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
220 close(inf);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
221 return(FALSE);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
222 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
223
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
224 close(inf);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
225
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
226 if (!wizard)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
227 unlink(file);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
228
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
229 mpos = 0;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
230 environ = envp;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
231 strcpy(file_name, file);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
232 clearok(curscr, TRUE);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
233 touchwin(cw);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
234 wrefresh(cw);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
235 msg("Welcome back! --More-- ");
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
236 wait_for(' ');
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
237 msg("");
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
238 playit();
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
239
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
240 /*NOTREACHED*/
136
1fbdefa82533 xrogue: initial support for the -n option.
John "Elwin" Edwards
parents: 135
diff changeset
241 return FALSE;
133
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
242 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
243
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
244 #define ENCWBSIZ 1024
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
245
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
246 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
247 * perform an encrypted write
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
248 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
249
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
250 long
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
251 encwrite(start, size, outf)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
252 register char *start;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
253 register unsigned long size;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
254 register FILE *outf;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
255 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
256 register unsigned char *ep;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
257 register int i = 0;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
258 unsigned long num_written = 0;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
259 char buf[ENCWBSIZ];
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
260 int ret;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
261
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
262 ep = encstr;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
263
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
264 while (size--)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
265 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
266 buf[i++] = *start++ ^ *ep++;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
267 if (*ep == '\0')
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
268 ep = encstr;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
269
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
270 if (i == ENCWBSIZ || size == 0)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
271 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
272 ret = (unsigned int) fwrite(buf, 1, i, outf);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
273 if (ret > 0)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
274 num_written += ret;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
275
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
276 if (ret < i)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
277 return(num_written);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
278
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
279 i = 0;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
280 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
281 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
282 return(num_written);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
283 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
284
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
285 #define ENCRBSIZ 32768
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
286
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
287 /*
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
288 * perform an encrypted read
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
289 */
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
290
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
291 long
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
292 encread(start, size, inf)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
293 register char *start;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
294 register unsigned long size;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
295 int inf;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
296 {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
297 register unsigned char *ep;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
298 register int rd_siz;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
299 register unsigned long total_read;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
300
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
301 total_read = 0;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
302 while (total_read < size) {
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
303 rd_siz = ENCRBSIZ;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
304 rd_siz = ((size-total_read) > ENCRBSIZ) ? ENCRBSIZ : (size-total_read);
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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diff changeset
305 rd_siz = read(inf,&start[total_read],rd_siz);
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306 if(rd_siz==-1 || rd_siz==0)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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307 break;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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308 total_read += rd_siz;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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309 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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310 ep = encstr;
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311
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312 size = total_read;
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313 while (size--)
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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314 {
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315 *start++ ^= *ep++;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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316 if (*ep == '\0')
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317 ep = encstr;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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318 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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319 return total_read;
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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320 }
e6179860cb76 Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff changeset
321