Mercurial > hg > early-roguelike
annotate xrogue/save.c @ 135:ce0cf824c192
xrogue: add missing includes.
This prevents some warnings.
author | John "Elwin" Edwards |
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date | Tue, 21 Apr 2015 10:34:01 -0400 |
parents | e6179860cb76 |
children | 1fbdefa82533 |
rev | line source |
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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> |
135 | 21 #include <string.h> |
133
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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 msg("Save file (%s)? ", file_name); |
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47 do |
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48 { |
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49 c = wgetch(cw); |
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50 if (c == ESC) return(0); |
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51 } while (c != 'n' && c != 'N' && c != 'y' && c != 'Y'); |
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52 mpos = 0; |
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53 if (c == 'y' || c == 'Y') |
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54 { |
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55 msg("File name: %s", file_name); |
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56 goto gotfile; |
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57 } |
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58 } |
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59 else |
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60 goto gotfile; /* must save to file restored from */ |
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61 |
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62 do |
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63 { |
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64 msg("File name: "); |
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65 mpos = 0; |
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66 buf[0] = '\0'; |
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67 if (get_str(buf, msgw) == QUIT) |
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68 { |
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69 msg(""); |
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70 return FALSE; |
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71 } |
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72 strcpy(file_name, buf); |
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73 gotfile: |
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74 |
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75 if ((savef = fopen(file_name, "wb")) == NULL) |
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76 msg(strerror(errno)); |
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77 } while (savef == NULL); |
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78 |
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79 msg(""); |
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80 /* |
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81 * write out encrpyted file |
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82 */ |
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83 if (save_file(savef) == FALSE) { |
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84 fclose(savef); |
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85 msg("Cannot create save file."); |
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86 unlink(file_name); |
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87 return(FALSE); |
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88 } |
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89 fclose(savef); |
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90 return(TRUE); |
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91 } |
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92 |
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93 /* |
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94 * automatically save a file. This is used if a HUP signal is recieved |
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95 */ |
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96 |
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97 void |
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98 auto_save(int sig) |
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99 { |
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100 register FILE *savef = NULL; |
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101 register int i; |
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102 NOOP(sig); |
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103 for (i = 0; i < NSIG; i++) |
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104 signal(i, SIG_IGN); |
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105 if (file_name[0] != '\0' && |
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106 pstats.s_hpt > 0 && |
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107 ((savef = fopen(file_name, "wb")) != NULL)) |
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108 save_file(savef); |
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109 fclose(savef); |
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110 exit_game(EXIT_ENDWIN); |
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111 } |
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112 |
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113 /* |
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114 * write the saved game on the file |
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115 */ |
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116 |
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117 bool |
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118 save_file(savef) |
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119 register FILE *savef; |
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120 { |
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121 int slines = LINES; |
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122 int scols = COLS; |
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123 int ret = FALSE; |
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124 int endian = 0x01020304; |
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125 big_endian = ( *((char *)&endian) == 0x01 ); |
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126 |
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127 wmove(cw, LINES-1, 0); |
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128 draw(cw); |
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129 |
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130 encwrite(version,strlen(version)+1,savef); |
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131 rs_write_int(savef,slines); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
132 rs_write_int(savef,scols); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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133 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
134 ret = rs_save_file(savef); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
135 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
136 return(ret); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
137 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
138 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
139 restore(file, envp) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
140 register char *file; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
141 char **envp; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
142 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
143 register int inf; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
144 extern char **environ; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
145 char buf[LINELEN]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
146 int endian = 0x01020304; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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147 big_endian = ( *((char *)&endian) == 0x01 ); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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148 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
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149 if (strcmp(file, "-r") == 0) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
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150 file = file_name; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
151 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
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152 if ((inf = open(file, O_RDONLY)) < 0) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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153 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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154 perror(file); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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|
155 return(-1); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
156 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
157 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
158 fflush(stdout); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
159 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
160 encread(buf, strlen(version) + 1, inf); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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161 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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162 if (strcmp(buf, version) != 0) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
163 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
164 printf("Sorry, saved game is out of date.\n"); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
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|
165 return FALSE; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
166 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
167 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
168 fflush(stdout); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
169 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
170 rs_read_int(inf,&lines); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
171 rs_read_int(inf,&cols); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
172 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
173 initscr(); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
174 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
175 if (lines > LINES) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
176 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
177 endwin(); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
178 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
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|
179 printf("Current screen only has %d lines. Unable to restore game\n",LINES); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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180 return(FALSE); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
181 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
182 if (cols > COLS) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
183 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
184 endwin(); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
185 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
|
186 printf("Current screen only has %d columns. Unable to restore game\n",COLS); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
187 return(FALSE); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
188 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
189 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
190 typeahead(-1); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
191 setup(); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
192 cw = newwin(LINES, COLS, 0, 0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
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193 mw = newwin(LINES, COLS, 0, 0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
194 hw = newwin(LINES, COLS, 0, 0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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195 msgw = newwin(4, cols, 0, 0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
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196 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
197 keypad(cw, TRUE); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
198 keypad(hw, TRUE); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
199 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
200 if (rs_restore_file(inf) == FALSE) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
201 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
202 endwin(); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
203 printf("Cannot restore file\n"); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
204 close(inf); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
205 return(FALSE); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
206 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
207 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
208 close(inf); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
209 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
210 if (!wizard) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
211 unlink(file); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
212 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
213 mpos = 0; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
214 environ = envp; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
215 strcpy(file_name, file); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
216 clearok(curscr, TRUE); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
217 touchwin(cw); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
218 wrefresh(cw); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
219 msg("Welcome back! --More-- "); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
220 wait_for(' '); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
221 msg(""); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
222 playit(); |
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 /*NOTREACHED*/ |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
225 return(1); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
226 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
227 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
228 #define ENCWBSIZ 1024 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
229 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
230 /* |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
231 * perform an encrypted write |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
232 */ |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
233 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
234 long |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
235 encwrite(start, size, outf) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
236 register char *start; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
237 register unsigned long size; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
238 register FILE *outf; |
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 register unsigned char *ep; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
241 register int i = 0; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
242 unsigned long num_written = 0; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
243 char buf[ENCWBSIZ]; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
244 int ret; |
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 ep = encstr; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
247 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
248 while (size--) |
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 buf[i++] = *start++ ^ *ep++; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
251 if (*ep == '\0') |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
252 ep = encstr; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
253 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
254 if (i == ENCWBSIZ || size == 0) |
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 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
|
257 if (ret > 0) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
258 num_written += ret; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
259 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
260 if (ret < i) |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
261 return(num_written); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
262 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
263 i = 0; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
264 } |
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265 } |
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266 return(num_written); |
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267 } |
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268 |
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269 #define ENCRBSIZ 32768 |
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270 |
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271 /* |
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272 * perform an encrypted read |
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273 */ |
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274 |
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275 long |
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276 encread(start, size, inf) |
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277 register char *start; |
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278 register unsigned long size; |
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279 int inf; |
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280 { |
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281 register unsigned char *ep; |
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282 register int rd_siz; |
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283 register unsigned long total_read; |
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284 |
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285 total_read = 0; |
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286 while (total_read < size) { |
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287 rd_siz = ENCRBSIZ; |
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288 rd_siz = ((size-total_read) > ENCRBSIZ) ? ENCRBSIZ : (size-total_read); |
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289 rd_siz = read(inf,&start[total_read],rd_siz); |
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290 if(rd_siz==-1 || rd_siz==0) |
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291 break; |
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292 total_read += rd_siz; |
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293 } |
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294 ep = encstr; |
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295 |
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296 size = total_read; |
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297 while (size--) |
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298 { |
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299 *start++ ^= *ep++; |
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300 if (*ep == '\0') |
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301 ep = encstr; |
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302 } |
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303 return total_read; |
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304 } |
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305 |