Mercurial > hg > early-roguelike
annotate rogue5/mach_dep.c @ 247:23d2e2bf812f
Enable the logfile on 64-bit Windows.
It seems to work without any problems.
One use of a non-portable function was corrected in the process.
author | John "Elwin" Edwards |
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date | Tue, 17 May 2016 21:28:34 -0400 |
parents | 2c62bd925c17 |
children | e52a8a7ad4c5 |
rev | line source |
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33
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1 /* |
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2 * Various installation dependent routines |
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3 * |
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4 * @(#)mach_dep.c 4.37 (Berkeley) 05/23/83 |
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5 * |
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6 * Rogue: Exploring the Dungeons of Doom |
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7 * Copyright (C) 1980-1983, 1985, 1999 Michael Toy, Ken Arnold and Glenn Wichman |
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8 * All rights reserved. |
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9 * |
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10 * See the file LICENSE.TXT for full copyright and licensing information. |
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11 */ |
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12 |
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13 /* |
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14 * The various tuneable defines are: |
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15 * |
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16 * SCOREFILE Where/if the score file should live. |
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17 * ALLSCORES Score file is top ten scores, not top ten |
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18 * players. This is only useful when only a few |
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19 * people will be playing; otherwise the score file |
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20 * gets hogged by just a few people. |
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21 * NUMSCORES Number of scores in the score file (default 10). |
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22 * NUMNAME String version of NUMSCORES (first character |
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23 * should be capitalized) (default "Ten"). |
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24 * MAXLOAD What (if any) the maximum load average should be |
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25 * when people are playing. Since it is divided |
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26 * by 10, to specify a load limit of 4.0, MAXLOAD |
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27 * should be "40". If defined, then |
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28 * LOADAV Should it use it's own routine to get |
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29 * the load average? |
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30 * NAMELIST If so, where does the system namelist |
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31 * hide? |
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32 * MAXUSERS What (if any) the maximum user count should be |
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33 * when people are playing. If defined, then |
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34 * UCOUNT Should it use it's own routine to count |
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35 * users? |
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36 * UTMP If so, where does the user list hide? |
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37 * CHECKTIME How often/if it should check during the game |
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38 * for high load average. |
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39 */ |
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40 |
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41 #include <signal.h> |
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42 #include <sys/types.h> |
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43 #include <sys/stat.h> |
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44 #include <limits.h> |
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45 #include <string.h> |
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46 #include <fcntl.h> |
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47 #include <errno.h> |
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48 #include <time.h> |
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49 #include <curses.h> |
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50 #include "extern.h" |
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51 |
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52 #define NOOP(x) (x += 0) |
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53 |
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54 # ifndef NUMSCORES |
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55 # define NUMSCORES 10 |
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56 # define NUMNAME "Ten" |
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57 # endif |
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58 |
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59 #ifdef CHECKTIME |
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60 static int num_checks = 0; /* times we've gone over in checkout() */ |
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61 #endif /* CHECKTIME */ |
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62 |
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63 /* |
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64 * init_check: |
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65 * Check out too see if it is proper to play the game now |
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66 */ |
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67 |
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68 void |
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69 init_check(void) |
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70 { |
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71 #if defined(MAXLOAD) || defined(MAXUSERS) |
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72 if (too_much()) |
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73 { |
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74 printf("Sorry, %s, but the system is too loaded now.\n", whoami); |
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75 printf("Try again later. Meanwhile, why not enjoy a%s %s?\n", |
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76 vowelstr(fruit), fruit); |
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77 if (author()) |
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78 printf("However, since you're a good guy, it's up to you\n"); |
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79 else |
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80 exit(1); |
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81 } |
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82 #endif |
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83 } |
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84 |
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85 /* |
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86 * open_score: |
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87 * Open up the score file for future use |
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88 */ |
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89 |
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90 void |
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91 open_score(void) |
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92 { |
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93 #ifdef SCOREFILE |
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94 char *scorefile = SCOREFILE; |
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95 |
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96 numscores = NUMSCORES; |
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97 Numname = NUMNAME; |
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98 |
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99 #ifdef ALLSCORES |
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100 allscore = TRUE; |
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101 #else /* ALLSCORES */ |
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102 allscore = FALSE; |
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103 #endif /* ALLSCORES */ |
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104 |
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105 /* |
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106 * We drop setgid privileges after opening the score file, so subsequent |
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107 * open()'s will fail. Just reuse the earlier filehandle. |
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108 */ |
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109 |
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110 if (scoreboard != NULL) { |
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111 rewind(scoreboard); |
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112 return; |
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113 } |
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114 |
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115 scoreboard = fopen(scorefile, "r+"); |
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116 |
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117 if ((scoreboard == NULL) && (errno == ENOENT)) |
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118 { |
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119 scoreboard = fopen(scorefile, "w+"); |
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120 md_chmod(scorefile,0664); |
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121 } |
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122 |
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123 if (scoreboard == NULL) { |
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124 fprintf(stderr, "Could not open %s for writing: %s\n", scorefile, strerror(errno)); |
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125 fflush(stderr); |
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126 } |
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127 #else |
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128 scoreboard = NULL; |
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129 #endif |
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130 } |
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131 |
34 | 132 void |
133 open_log(void) | |
134 { | |
135 #ifdef LOGFILE | |
136 logfi = fopen(LOGFILE, "a"); | |
137 if (logfi == NULL) | |
138 { | |
139 fprintf(stderr, "Could not open %s for appending: %s\n", LOGFILE, | |
140 strerror(errno)); | |
141 fflush(stderr); | |
142 } | |
143 #endif | |
144 return; | |
145 } | |
146 | |
33
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147 /* |
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148 * getltchars: |
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149 * Get the local tty chars for later use |
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150 */ |
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151 |
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152 void |
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153 getltchars(void) |
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154 { |
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155 got_ltc = TRUE; |
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156 orig_dsusp = md_dsuspchar(); |
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157 md_setdsuspchar( md_suspchar() ); |
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158 } |
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159 |
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160 /* |
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161 * setup: |
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162 * Get starting setup for all games |
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163 */ |
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164 |
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165 void |
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166 setup(void) |
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167 { |
117
2c62bd925c17
rogue5: save the game when SIGHUP is received.
John "Elwin" Edwards
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34
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168 #ifndef DUMP |
33
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169 md_onsignal_autosave(); |
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170 #else |
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171 md_onsignal_default(); |
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172 #endif |
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173 |
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174 #ifdef CHECKTIME |
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175 md_start_checkout_timer(CHECKTIME*60); |
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176 num_checks = 0; |
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177 #endif |
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178 |
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179 raw(); /* Raw mode */ |
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180 noecho(); /* Echo off */ |
34 | 181 nonl(); |
33
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182 keypad(stdscr,1); |
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183 getltchars(); /* get the local tty chars */ |
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184 } |
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185 |
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186 /* |
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187 * resetltchars: |
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188 * Reset the local tty chars to original values. |
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189 */ |
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190 void |
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191 resetltchars(void) |
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192 { |
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193 if (got_ltc) { |
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194 md_setdsuspchar(orig_dsusp); |
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195 } |
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196 } |
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197 |
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198 /* |
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199 * playltchars: |
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200 * Set local tty chars to the values we use when playing. |
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201 */ |
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202 void |
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203 playltchars(void) |
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204 { |
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205 if (got_ltc) { |
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206 md_setdsuspchar( md_suspchar() ); |
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207 } |
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208 } |
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209 |
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210 /* |
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211 * start_score: |
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212 * Start the scoring sequence |
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213 */ |
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214 |
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215 void |
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216 start_score(void) |
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217 { |
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218 #ifdef CHECKTIME |
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219 md_stop_checkout_timer(); |
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220 #endif |
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221 } |
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222 |
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223 /* |
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224 * is_symlink: |
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225 * See if the file has a symbolic link |
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226 */ |
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227 int |
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228 is_symlink(char *sp) |
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229 { |
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230 #ifdef S_IFLNK |
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231 struct stat sbuf2; |
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232 |
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233 if (lstat(sp, &sbuf2) < 0) |
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234 return FALSE; |
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235 else |
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236 return ((sbuf2.st_mode & S_IFMT) != S_IFREG); |
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237 #else |
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|
238 NOOP(sp); |
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239 return FALSE; |
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|
240 #endif |
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241 } |
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242 |
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243 #if defined(MAXLOAD) || defined(MAXUSERS) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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244 /* |
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245 * too_much: |
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246 * See if the system is being used too much for this game |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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247 */ |
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248 int |
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249 too_much(void) |
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250 { |
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251 #ifdef MAXLOAD |
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252 double avec[3]; |
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253 #else |
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254 int cnt; |
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255 #endif |
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256 |
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257 #ifdef MAXLOAD |
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258 md_loadav(avec); |
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259 if (avec[1] > (MAXLOAD / 10.0)) |
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260 return TRUE; |
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|
261 #endif |
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262 #ifdef MAXUSERS |
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263 if (ucount() > MAXUSERS) |
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264 return TRUE; |
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|
265 #endif |
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266 return FALSE; |
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|
267 } |
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268 |
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269 /* |
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270 * author: |
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271 * See if a user is an author of the program |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
272 */ |
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273 int |
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274 author(void) |
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275 { |
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276 #ifdef MASTER |
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277 if (wizard) |
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278 return TRUE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
279 #endif |
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280 switch (md_getuid()) |
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|
281 { |
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|
282 case -1: |
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|
283 return TRUE; |
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|
284 default: |
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|
285 return FALSE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
286 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
287 } |
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|
288 #endif |
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|
289 |
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|
290 #ifdef CHECKTIME |
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291 /* |
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292 * checkout: |
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293 * Check each CHECKTIME seconds to see if the load is too high |
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294 */ |
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295 |
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296 checkout(int sig) |
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297 { |
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298 char *msgs[] = { |
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299 "The load is too high to be playing. Please leave in %0.1f minutes", |
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300 "Please save your game. You have %0.1f minutes", |
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301 "Last warning. You have %0.1f minutes to leave", |
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302 }; |
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303 int checktime; |
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|
304 |
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305 if (too_much()) |
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306 { |
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307 if (author()) |
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308 { |
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309 num_checks = 1; |
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310 chmsg("The load is rather high, O exaulted one"); |
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311 } |
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312 else if (num_checks++ == 3) |
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313 fatal("Sorry. You took too long. You are dead\n"); |
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314 checktime = (CHECKTIME * 60) / num_checks; |
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315 chmsg(msgs[num_checks - 1], ((double) checktime / 60.0)); |
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316 } |
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317 else |
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318 { |
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319 if (num_checks) |
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320 { |
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321 num_checks = 0; |
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322 chmsg("The load has dropped back down. You have a reprieve"); |
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323 } |
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324 checktime = (CHECKTIME * 60); |
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325 } |
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326 |
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327 md_start_checkout_timer(checktime); |
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328 } |
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329 |
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330 /* |
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331 * chmsg: |
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332 * checkout()'s version of msg. If we are in the middle of a |
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333 * shell, do a printf instead of a msg to a the refresh. |
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334 */ |
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335 /* VARARGS1 */ |
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336 |
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337 chmsg(char *fmt, int arg) |
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338 { |
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339 if (!in_shell) |
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340 msg(fmt, arg); |
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341 else |
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342 { |
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343 printf(fmt, arg); |
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344 putchar('\n'); |
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345 fflush(stdout); |
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346 } |
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347 } |
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348 #endif |
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349 |
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350 #ifdef UCOUNT |
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351 /* |
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352 * ucount: |
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353 * count number of users on the system |
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354 */ |
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355 #include <utmp.h> |
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356 |
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357 struct utmp buf; |
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358 |
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359 int |
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360 ucount(void) |
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361 { |
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362 struct utmp *up; |
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363 FILE *utmp; |
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364 int count; |
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365 |
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366 if ((utmp = fopen(UTMP, "r")) == NULL) |
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367 return 0; |
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368 |
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369 up = &buf; |
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370 count = 0; |
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371 |
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372 while (fread(up, 1, sizeof (*up), utmp) > 0) |
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373 if (buf.ut_name[0] != '\0') |
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374 count++; |
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375 fclose(utmp); |
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376 return count; |
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377 } |
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|
378 #endif |
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379 |
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380 /* |
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381 * lock_sc: |
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382 * lock the score file. If it takes too long, ask the user if |
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383 * they care to wait. Return TRUE if the lock is successful. |
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|
384 */ |
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385 static FILE *lfd = NULL; |
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|
386 int |
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|
387 lock_sc(void) |
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388 { |
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389 #if defined(SCOREFILE) && defined(LOCKFILE) |
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390 int cnt; |
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|
391 struct stat sbuf; |
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392 char *lockfile = LOCKFILE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
393 |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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394 over: |
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395 if ((lfd=fopen(lockfile, "w+")) != NULL) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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396 return TRUE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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397 for (cnt = 0; cnt < 5; cnt++) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
398 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
399 md_sleep(1); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
400 if ((lfd=fopen(lockfile, "w+")) != NULL) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
401 return TRUE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
402 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
403 if (stat(lockfile, &sbuf) < 0) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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diff
changeset
|
404 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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diff
changeset
|
405 lfd=fopen(lockfile, "w+"); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
406 return TRUE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
407 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
408 if (time(NULL) - sbuf.st_mtime > 10) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
409 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
410 if (md_unlink(lockfile) < 0) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
411 return FALSE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
412 goto over; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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diff
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|
413 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
414 else |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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diff
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|
415 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
416 printf("The score file is very busy. Do you want to wait longer\n"); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
417 printf("for it to become free so your score can get posted?\n"); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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418 printf("If so, type \"y\"\n"); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
419 (void) fgets(prbuf, MAXSTR, stdin); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
420 if (prbuf[0] == 'y') |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
421 for (;;) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
422 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
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changeset
|
423 if ((lfd=fopen(lockfile, "w+")) != 0) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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|
424 return TRUE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
425 if (stat(lockfile, &sbuf) < 0) |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
426 { |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
427 lfd=fopen(lockfile, "w+"); |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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changeset
|
428 return TRUE; |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
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parents:
diff
changeset
|
429 } |
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Import Rogue 5.4 from the Roguelike Restoration Project (r1490)
elwin
parents:
diff
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430 if (time(NULL) - sbuf.st_mtime > 10) |
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431 { |
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432 if (md_unlink(lockfile) < 0) |
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433 return FALSE; |
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434 } |
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435 md_sleep(1); |
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436 } |
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437 else |
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438 return FALSE; |
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439 } |
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440 #else |
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441 return TRUE; |
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442 #endif |
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443 } |
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444 |
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445 /* |
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446 * unlock_sc: |
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447 * Unlock the score file |
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448 */ |
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449 |
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450 void |
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451 unlock_sc(void) |
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452 { |
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453 #if defined(SCOREFILE) && defined(LOCKFILE) |
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454 if (lfd != NULL) |
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455 fclose(lfd); |
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456 lfd = NULL; |
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457 md_unlink(LOCKFILE); |
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458 #endif |
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459 } |
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460 |
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461 /* |
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462 * flush_type: |
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463 * Flush typeahead for traps, etc. |
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464 */ |
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465 |
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466 void |
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467 flush_type(void) |
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468 { |
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469 flushinp(); |
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470 } |