Mercurial > hg > early-roguelike
annotate xrogue/save.c @ 181:d53b13637783
rogue4: rearrange some includes.
Using MSVC with pdcurses, curses.h has to be included after windows.h
and before process.h. This is apparently because bool is now a
built-in type which pdcurses is not allowed to redefine. But I don't
entirely understand how the headers are interacting, and I don't think
the MSDN page does either.
author | John "Elwin" Edwards |
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date | Fri, 31 Jul 2015 20:01:44 -0400 |
parents | 443c8bd3e290 |
children | 6e6fb0955095 |
rev | line source |
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1 /* |
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2 save.c - save and restore routines |
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3 |
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4 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 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); |
133
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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 |
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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) { |
133
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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 } |
133
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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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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
132 int slines = LINES; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
133 int scols = COLS; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
134 int ret = FALSE; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
135 int endian = 0x01020304; |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
136 big_endian = ( *((char *)&endian) == 0x01 ); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
137 |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
138 wmove(cw, LINES-1, 0); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
139 draw(cw); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
140 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
141 encwrite(version,strlen(version)+1,savef); |
e6179860cb76
Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
142 rs_write_int(savef,slines); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
143 rs_write_int(savef,scols); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
144 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
145 ret = rs_save_file(savef); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
146 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
147 return(ret); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
148 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
149 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
150 restore(file, envp) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
151 register char *file; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
152 char **envp; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
153 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
154 register int inf; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
155 extern char **environ; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
156 char buf[LINELEN]; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
157 int endian = 0x01020304; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
158 big_endian = ( *((char *)&endian) == 0x01 ); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
159 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
160 if (strcmp(file, "-r") == 0) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
161 file = file_name; |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
162 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
163 if ((inf = open(file, O_RDONLY)) < 0) |
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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
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
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|
170 perror(file); |
136
1fbdefa82533
xrogue: initial support for the -n option.
John "Elwin" Edwards
parents:
135
diff
changeset
|
171 return FALSE; |
133
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
172 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
173 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
174 fflush(stdout); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
175 |
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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
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|
177 |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
178 if (strcmp(buf, version) != 0) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
179 { |
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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"); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
181 return FALSE; |
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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 |
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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); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
188 |
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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 |
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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 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
193 endwin(); |
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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); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
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parents:
diff
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|
196 return(FALSE); |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
197 } |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
198 if (cols > COLS) |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
199 { |
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Import XRogue 8.0 from the Roguelike Restoration Project (r1490)
John "Elwin" Edwards
parents:
diff
changeset
|
200 endwin(); |
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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 } |
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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--) |
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265 { |
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266 buf[i++] = *start++ ^ *ep++; |
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267 if (*ep == '\0') |
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268 ep = encstr; |
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269 |
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270 if (i == ENCWBSIZ || size == 0) |
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271 { |
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272 ret = (unsigned int) fwrite(buf, 1, i, outf); |
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273 if (ret > 0) |
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274 num_written += ret; |
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275 |
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276 if (ret < i) |
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277 return(num_written); |
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278 |
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279 i = 0; |
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280 } |
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281 } |
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282 return(num_written); |
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283 } |
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284 |
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285 #define ENCRBSIZ 32768 |
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286 |
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287 /* |
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288 * perform an encrypted read |
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289 */ |
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290 |
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291 long |
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292 encread(start, size, inf) |
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293 register char *start; |
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294 register unsigned long size; |
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295 int inf; |
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296 { |
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297 register unsigned char *ep; |
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298 register int rd_siz; |
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299 register unsigned long total_read; |
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300 |
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301 total_read = 0; |
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302 while (total_read < size) { |
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303 rd_siz = ENCRBSIZ; |
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304 rd_siz = ((size-total_read) > ENCRBSIZ) ? ENCRBSIZ : (size-total_read); |
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305 rd_siz = read(inf,&start[total_read],rd_siz); |
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306 if(rd_siz==-1 || rd_siz==0) |
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307 break; |
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308 total_read += rd_siz; |
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309 } |
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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--) |
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314 { |
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315 *start++ ^= *ep++; |
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316 if (*ep == '\0') |
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317 ep = encstr; |
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318 } |
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319 return total_read; |
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320 } |
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321 |