Mercurial > hg > early-roguelike
annotate arogue7/options.c @ 310:827441d05b3e
Advanced Rogue family: fix some potential buffer overflows.
Some code for determining the score file location assumed that PATH_MAX
would be less than 1024, which cannot be guaranteed.
Advanced Rogue 5 and 7, and XRogue, have had the buffers for the file
name enlarged. UltraRogue never called the functions, so the code has
been deleted instead.
author | John "Elwin" Edwards |
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date | Mon, 03 May 2021 19:05:37 -0400 |
parents | e52a8a7ad4c5 |
children |
rev | line source |
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1 /* |
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2 * options.c - This file has all the code for the option command |
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3 * |
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4 * Advanced Rogue |
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5 * Copyright (C) 1984, 1985, 1986 Michael Morgan, Ken Dalka and AT&T |
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6 * All rights reserved. |
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7 * |
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8 * Based on "Rogue: Exploring the Dungeons of Doom" |
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9 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman |
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10 * All rights reserved. |
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11 * |
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12 * See the file LICENSE.TXT for full copyright and licensing information. |
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13 */ |
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14 |
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15 /* |
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16 * This file has all the code for the option command. |
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17 * I would rather this command were not necessary, but |
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18 * it is the only way to keep the wolves off of my back. |
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19 * |
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20 */ |
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21 |
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22 #include "curses.h" |
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23 #include <ctype.h> |
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24 #include <limits.h> |
126 | 25 #include <string.h> |
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26 #include "rogue.h" |
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27 |
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28 #define NUM_OPTS (sizeof optlist / sizeof (OPTION)) |
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29 |
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30 |
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31 /* |
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32 * description of an option and what to do with it |
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33 */ |
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34 struct optstruct { |
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35 char *o_name; /* option name */ |
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36 char *o_prompt; /* prompt for interactive entry */ |
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37 void *o_opt; /* pointer to thing to set */ |
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38 void (*o_putfunc)(); /* function to print value */ |
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39 int (*o_getfunc)(); /* function to get value interactively */ |
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40 }; |
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41 |
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42 typedef struct optstruct OPTION; |
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43 |
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44 void put_bool(bool *b, WINDOW *win); |
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45 int get_bool(bool *bp, WINDOW *win); |
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46 void put_str(char *str, WINDOW *win); |
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47 int get_str(char *opt, WINDOW *win); |
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48 void put_abil(int *ability, WINDOW *win); |
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49 int get_abil(int *abil, WINDOW *win); |
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50 void put_quest(int *quest, WINDOW *win); |
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51 int get_quest(int *quest, WINDOW *win); |
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52 int get_ro(WINDOW *win, int oy, int ox); |
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53 |
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54 int get_str_prot(char *opt, WINDOW *win); |
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55 int get_score(char *opt, WINDOW *win); |
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56 bool allowchange(OPTION *op); |
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57 |
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58 OPTION optlist[] = { |
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59 {"terse", "Terse output: ", |
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60 (void *) &terse, put_bool, get_bool }, |
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61 {"flush", "Flush typeahead during battle: ", |
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62 (void *) &fight_flush, put_bool, get_bool }, |
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63 {"jump", "Show position only at end of run: ", |
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64 (void *) &jump, put_bool, get_bool }, |
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65 {"step", "Do inventories one line at a time: ", |
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66 (void *) &slow_invent, put_bool, get_bool }, |
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67 {"askme", "Ask me about unidentified things: ", |
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68 (void *) &askme, put_bool, get_bool }, |
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69 {"pickup", "Pick things up automatically: ", |
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70 (void *) &auto_pickup, put_bool, get_bool }, |
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71 {"overlay", "Overlay menu: ", |
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72 (void *) &menu_overlay, put_bool, get_bool }, |
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73 {"name", "Name: ", |
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74 (void *) whoami, put_str, get_str_prot }, |
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75 {"file", "Save file: ", |
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76 (void *) file_name, put_str, get_str_prot }, |
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77 {"score", "Score file: ", |
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78 (void *) score_file, put_str, get_score }, |
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79 {"class", "Character class: ", |
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80 (void *)&char_type, put_abil, get_abil }, |
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81 {"quest", "Quest item: ", |
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82 (void *) &quest_item, put_quest, get_quest } |
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83 }; |
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84 |
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85 /* |
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86 * The ability field is read-only |
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87 */ |
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88 int |
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89 get_abil(int *abil, WINDOW *win) |
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90 { |
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91 register int oy, ox; |
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92 |
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93 getyx(win, oy, ox); |
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94 put_abil(abil, win); |
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95 return get_ro(win, oy, ox); |
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96 } |
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97 |
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98 /* |
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99 * The quest field is read-only |
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100 */ |
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101 int |
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102 get_quest(int *quest, WINDOW *win) |
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103 { |
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104 register int oy, ox; |
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105 |
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106 getyx(win, oy, ox); |
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107 waddstr(win, rel_magic[*quest].mi_name); |
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108 return get_ro(win, oy, ox); |
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109 } |
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110 |
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111 /* |
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112 * get_ro: |
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113 * "Get" a read-only value. |
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114 */ |
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115 |
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116 int |
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117 get_ro(WINDOW *win, int oy, int ox) |
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118 { |
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119 register int ny, nx; |
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120 register bool op_bad; |
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121 |
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122 op_bad = TRUE; |
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123 getyx(win, ny, nx); |
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124 while(op_bad) |
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125 { |
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126 wmove(win, oy, ox); |
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127 draw(win); |
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128 switch (wgetch(win)) |
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129 { |
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130 case '\n': |
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131 case '\r': |
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132 op_bad = FALSE; |
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133 break; |
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134 case '\033': |
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135 case '\007': |
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136 return QUIT; |
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137 case '-': |
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138 return MINUS; |
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139 default: |
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140 mvwaddstr(win, ny, nx + 5, "(no change allowed)"); |
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141 } |
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142 } |
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143 wmove(win, ny, nx + 5); |
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144 wclrtoeol(win); |
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145 wmove(win, ny, nx); |
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146 waddch(win, '\n'); |
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147 return NORM; |
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148 } |
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149 |
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150 /* |
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151 * allow changing a boolean option and print it out |
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152 */ |
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153 |
219
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154 int |
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155 get_bool(bool *bp, WINDOW *win) |
125
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156 { |
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157 register int oy, ox; |
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158 register bool op_bad; |
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159 |
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160 op_bad = TRUE; |
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161 getyx(win, oy, ox); |
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162 waddstr(win, *bp ? "True" : "False"); |
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163 while(op_bad) |
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164 { |
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165 wmove(win, oy, ox); |
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166 draw(win); |
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167 switch (wgetch(win)) |
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168 { |
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169 case 't': |
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170 case 'T': |
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171 *bp = TRUE; |
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172 op_bad = FALSE; |
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173 break; |
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174 case 'f': |
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175 case 'F': |
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176 *bp = FALSE; |
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177 op_bad = FALSE; |
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178 break; |
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179 case '\n': |
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180 case '\r': |
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181 op_bad = FALSE; |
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182 break; |
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183 case '\033': |
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184 case '\007': |
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185 return QUIT; |
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186 case '-': |
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187 return MINUS; |
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188 default: |
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189 mvwaddstr(win, oy, ox + 10, "(T or F)"); |
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190 } |
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191 } |
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192 wmove(win, oy, ox); |
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193 wclrtoeol(win); |
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194 waddstr(win, *bp ? "True" : "False"); |
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195 waddch(win, '\n'); |
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196 return NORM; |
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197 } |
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198 |
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199 |
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200 /* |
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201 * set a string option |
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202 */ |
219
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203 int |
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204 get_str(char *opt, WINDOW *win) |
125
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205 { |
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206 register char *sp; |
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207 register int c, oy, ox; |
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208 char buf[LINELEN]; |
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209 |
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210 draw(win); |
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211 getyx(win, oy, ox); |
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212 /* |
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213 * loop reading in the string, and put it in a temporary buffer |
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214 */ |
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215 for (sp = buf; |
150
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145
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216 (c = md_readchar(win)) != '\n' && |
125
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217 c != '\r' && |
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218 c != '\033' && |
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219 c != '\007' && |
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220 sp < &buf[LINELEN-1]; |
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221 wclrtoeol(win), draw(win)) |
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222 { |
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223 if (c == -1) |
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224 continue; |
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225 else if (c == md_erasechar()) /* process erase character */ |
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226 { |
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227 if (sp > buf) |
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228 { |
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229 register int i; |
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230 |
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231 sp--; |
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232 for (i = strlen(unctrl(*sp)); i; i--) |
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233 waddch(win, '\b'); |
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234 } |
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235 continue; |
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236 } |
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237 else if (c == md_killchar()) /* process kill character */ |
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238 { |
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239 sp = buf; |
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240 wmove(win, oy, ox); |
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241 continue; |
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242 } |
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243 else if (sp == buf) |
304 | 244 { |
125
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245 if (c == '-' && win == hw) /* To move back a line in hw */ |
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246 break; |
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247 else if (c == '~') |
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248 { |
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249 strcpy(buf, home); |
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250 waddstr(win, home); |
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251 sp += strlen(home); |
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252 continue; |
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253 } |
304 | 254 } |
125
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255 *sp++ = c; |
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256 waddstr(win, unctrl(c)); |
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257 } |
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258 *sp = '\0'; |
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259 if (sp > buf) /* only change option if something has been typed */ |
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260 strucpy(opt, buf, strlen(buf)); |
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261 wmove(win, oy, ox); |
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262 waddstr(win, opt); |
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263 waddch(win, '\n'); |
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264 draw(win); |
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265 if (win == msgw) |
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266 mpos += (int)(sp - buf); |
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267 if (c == '-') |
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268 return MINUS; |
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269 else if (c == '\033' || c == '\007') |
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270 return QUIT; |
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271 else |
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272 return NORM; |
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273 } |
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274 |
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275 |
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276 |
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277 /* |
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278 * print and then set options from the terminal |
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279 */ |
219
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280 void |
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281 option(void) |
125
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282 { |
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283 register OPTION *op; |
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284 register int retval; |
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285 |
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286 wclear(hw); |
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287 touchwin(hw); |
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288 /* |
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289 * Display current values of options |
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290 */ |
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291 for (op = optlist; op <= &optlist[NUM_OPTS-1]; op++) |
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292 { |
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293 waddstr(hw, op->o_prompt); |
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294 (*op->o_putfunc)(op->o_opt, hw); |
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295 waddch(hw, '\n'); |
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296 } |
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297 /* |
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298 * Set values |
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299 */ |
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300 wmove(hw, 0, 0); |
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301 for (op = optlist; op <= &optlist[NUM_OPTS-1]; op++) |
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302 { |
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303 waddstr(hw, op->o_prompt); |
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304 if ((retval = (*op->o_getfunc)(op->o_opt, hw))) |
304 | 305 { |
125
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306 if (retval == QUIT) |
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307 break; |
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308 else if (op > optlist) { /* MINUS */ |
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309 wmove(hw, (int)(op - optlist) - 1, 0); |
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310 op -= 2; |
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311 } |
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312 else /* trying to back up beyond the top */ |
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313 { |
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314 putchar('\007'); |
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315 wmove(hw, 0, 0); |
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316 op--; |
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317 } |
304 | 318 } |
125
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319 } |
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320 /* |
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321 * Switch back to original screen |
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322 */ |
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323 mvwaddstr(hw, lines-1, 0, spacemsg); |
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324 draw(hw); |
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325 wait_for(' '); |
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326 clearok(cw, TRUE); |
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327 touchwin(cw); |
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328 after = FALSE; |
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329 } |
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330 |
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331 /* |
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332 * parse options from string, usually taken from the environment. |
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333 * the string is a series of comma seperated values, with booleans |
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334 * being stated as "name" (true) or "noname" (false), and strings |
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335 * being "name=....", with the string being defined up to a comma |
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336 * or the end of the entire option string. |
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337 */ |
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338 |
219
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339 void |
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340 parse_opts(char *str) |
125
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341 { |
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342 register char *sp; |
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343 register OPTION *op; |
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344 register int len; |
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345 |
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346 while (*str) |
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347 { |
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348 /* |
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349 * Get option name |
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350 */ |
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351 for (sp = str; isalpha(*sp); sp++) |
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352 continue; |
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353 len = (int)(sp - str); |
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354 /* |
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355 * Look it up and deal with it |
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356 */ |
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357 for (op = optlist; op <= &optlist[NUM_OPTS-1]; op++) |
254
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358 { |
125
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359 if (EQSTR(str, op->o_name, len)) |
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360 { |
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361 if (op->o_putfunc == put_bool) /* if option is a boolean */ |
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362 *(bool *)op->o_opt = TRUE; |
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363 else /* string option */ |
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364 { |
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365 register char *start; |
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366 char value[LINELEN]; |
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|
367 |
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368 /* |
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369 * Skip to start of string value |
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|
370 */ |
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371 for (str = sp + 1; *str == '='; str++) |
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|
372 continue; |
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373 if (*str == '~') |
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|
374 { |
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375 strcpy((char *) value, home); |
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376 start = (char *) value + strlen(home); |
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377 while (*++str == '/') |
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|
378 continue; |
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|
379 } |
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380 else |
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381 start = (char *) value; |
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382 /* |
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383 * Skip to end of string value |
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|
384 */ |
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385 for (sp = str + 1; *sp && *sp != ','; sp++) |
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386 continue; |
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387 strucpy(start, str, sp - str); |
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388 |
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389 /* Put the value into the option field */ |
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390 if (op->o_putfunc != put_abil) |
129
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126
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391 { |
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126
diff
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|
392 if (allowchange(op)) |
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126
diff
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393 strcpy((char *)op->o_opt, (char *)value); |
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394 } |
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395 |
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396 else if (*(int *)op->o_opt == -1) { |
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397 /* Only init ability once */ |
125
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398 register int len = strlen(value); |
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399 register int i; |
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400 |
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401 if (isupper(value[0])) value[0] = tolower(value[0]); |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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402 for (i=0; i<NUM_CHARTYPES-1; i++) { |
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403 if (EQSTR(value, char_class[i].name, len)) { |
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404 *(int *)op->o_opt = i; |
125
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405 break; |
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406 } |
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407 } |
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408 } |
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409 } |
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410 break; |
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411 } |
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412 /* |
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413 * check for "noname" for booleans |
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414 */ |
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415 else if (op->o_putfunc == put_bool |
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416 && EQSTR(str, "no", 2) && EQSTR(str + 2, op->o_name, len - 2)) |
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417 { |
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418 *(bool *)op->o_opt = FALSE; |
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419 break; |
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420 } |
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421 } |
125
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422 |
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423 /* |
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424 * skip to start of next option name |
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425 */ |
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426 while (*sp && !isalpha(*sp)) |
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427 sp++; |
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428 str = sp; |
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429 } |
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430 } |
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431 |
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432 |
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433 /* |
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434 * print the character type |
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435 */ |
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436 void |
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437 put_abil(int *ability, WINDOW *win) |
125
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438 { |
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439 waddstr(win, char_class[*ability].name); |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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440 } |
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441 |
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442 |
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443 /* |
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444 * print out the quest |
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445 */ |
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446 |
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447 void |
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448 put_quest(int *quest, WINDOW *win) |
125
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449 { |
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450 waddstr(win, rel_magic[*quest].mi_name); |
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Import Advanced Rogue 7.7 from the Roguelike Restoration Project (r1490)
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451 } |
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452 |
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453 |
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454 /* |
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455 * put out a boolean |
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456 */ |
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457 void |
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458 put_bool(bool *b, WINDOW *win) |
125
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459 { |
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460 waddstr(win, *b ? "True" : "False"); |
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461 } |
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462 |
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|
463 |
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|
464 |
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|
465 |
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|
466 /* |
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467 * put out a string |
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468 */ |
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469 void |
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470 put_str(char *str, WINDOW *win) |
125
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471 { |
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472 waddstr(win, str); |
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473 } |
129
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474 |
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475 /* Like get_str, but disallows changes when use_savedir is set. */ |
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476 int |
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477 get_str_prot(char *opt, WINDOW *win) |
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478 { |
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479 int oy, ox; |
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480 |
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481 if (use_savedir) { |
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482 getyx(win, oy, ox); |
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483 waddstr(win, opt); |
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484 return get_ro(win, oy, ox); |
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485 } |
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486 else { |
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487 return get_str(opt, win); |
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488 } |
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489 } |
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|
490 |
145
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491 /* When getting the scorefile, the new file must be opened. */ |
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492 int |
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493 get_score(char *optstr, WINDOW *win) |
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494 { |
310
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diff
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495 char old_score_file[PATH_MAX]; |
145
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496 int status; |
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|
497 |
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|
498 if (use_savedir) |
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499 return get_str_prot(optstr, win); |
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|
500 |
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501 strcpy(old_score_file, optstr); |
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502 status = get_str(optstr, win); |
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503 if (status == NORM && strcmp(old_score_file, optstr)) |
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|
504 { |
279
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diff
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|
505 reopen_score(); |
145
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|
506 } |
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|
507 return status; |
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|
508 } |
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|
509 |
129
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|
510 bool |
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diff
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|
511 allowchange(OPTION *op) |
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|
512 { |
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|
513 if (!use_savedir) |
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|
514 return TRUE; |
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|
515 if (!strcmp(op->o_name, "name")) |
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diff
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|
516 return FALSE; |
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diff
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|
517 if (!strcmp(op->o_name, "file")) |
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diff
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|
518 return FALSE; |
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diff
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|
519 if (!strcmp(op->o_name, "score")) |
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|
520 return FALSE; |
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diff
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|
521 return TRUE; |
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|
522 } |