Mercurial > hg > early-roguelike
annotate srogue/main.c @ 176:db1c9a21a7c3
srogue: prevent overflowing the score file name.
If SCOREFILE is not defined, roguehome() is called to find a directory
for the score file. It copies up to PATH_MAX-20 bytes from an
environment variable to a static buffer. Later these are strcpy()'d to
scorefile, which is of size LINLEN. Unfortunately LINLEN is 80 and
PATH_MAX is at least 256. On Linux, it happens to be 4096.
I haven't yet managed to crash or exploit it, but there are surely no
beneficial consequences, so roguehome() has been modified to check the
length, and the string it returns is also checked in main().
author | John "Elwin" Edwards |
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date | Sun, 02 Aug 2015 12:14:47 -0400 |
parents | 1863409c44cf |
children | 7c552cbc6ad9 |
rev | line source |
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1 /* |
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2 * Rogue |
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3 * Exploring the dungeons of doom |
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4 * |
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5 * @(#)main.c 9.0 (rdk) 7/17/84 |
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6 * |
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7 * Super-Rogue |
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8 * Copyright (C) 1984 Robert D. Kindelberger |
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9 * All rights reserved. |
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10 * |
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11 * Based on "Rogue: Exploring the Dungeons of Doom" |
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12 * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman |
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13 * All rights reserved. |
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14 * |
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15 * See the file LICENSE.TXT for full copyright and licensing information. |
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16 */ |
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17 |
60 | 18 #include <stdlib.h> |
19 #include <string.h> | |
36
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20 #include <time.h> |
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21 #include <fcntl.h> |
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22 #include <stdio.h> |
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23 #include <limits.h> |
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24 #include <sys/stat.h> |
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25 #include "rogue.h" |
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26 |
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27 #ifdef ATT |
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28 #include <time.h> |
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29 #endif |
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30 |
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31 #ifdef BSD |
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32 #include <sys/time.h> |
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33 #endif |
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34 |
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35 #include "rogue.ext" |
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36 |
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37 void open_records(void); |
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38 |
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39 extern int scorefd; |
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40 extern FILE *logfile; |
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41 |
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42 main(argc, argv, envp) |
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43 char **argv; |
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44 char **envp; |
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45 { |
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46 register char *env; |
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47 register struct linked_list *item; |
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48 register struct object *obj; |
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49 char alldone, wpt; |
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50 char *getpass(), *xcrypt(), *strrchr(); |
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51 int lowtime; |
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52 time_t now; |
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53 char *roguehome(); |
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54 char *homedir = roguehome(); |
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55 |
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56 #ifdef __DJGPP__ |
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57 _fmode = O_BINARY; |
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58 #endif |
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59 |
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60 if (homedir == NULL) |
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61 homedir = ""; |
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62 |
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63 playuid = md_getuid(); |
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64 playgid = md_getgid(); |
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65 |
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66 /* check for print-score option */ |
37 | 67 #ifdef SCOREFILE |
68 strncpy(scorefile, SCOREFILE, LINLEN); | |
69 scorefile[LINLEN - 1] = '\0'; | |
70 #else | |
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71 |
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72 strncpy(scorefile, homedir, LINLEN-11); |
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73 if (scorefile[LINLEN-12] != '\0') |
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74 scorefile[0] = '\0'; |
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75 |
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76 if (*scorefile) |
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77 strcat(scorefile,"/"); |
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78 strcat(scorefile, "srogue.scr"); |
37 | 79 #endif |
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80 open_records(); |
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81 |
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82 if(argc >= 2 && strcmp(argv[1], "-s") == 0) |
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83 { |
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84 showtop(0); |
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85 exit(0); |
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86 } |
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87 |
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88 #ifdef WIZARD |
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89 if (argc >= 2 && author() && strcmp(argv[1],"-a") == 0) |
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90 { |
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91 wizard = TRUE; |
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92 argv++; |
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93 argc--; |
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94 } |
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95 |
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96 /* Check to see if he is a wizard */ |
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97 |
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98 if (argc >= 2 && strcmp(argv[1],"-w") == 0) |
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99 { |
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100 if (strcmp(PASSWD, xcrypt(getpass(wizstr),"mT")) == 0) |
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101 { |
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102 wizard = TRUE; |
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103 argv++; |
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104 argc--; |
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105 } |
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106 } |
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107 #endif |
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108 time(&now); |
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109 lowtime = (int) now; |
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110 |
37 | 111 #ifdef SAVEDIR |
112 if (argc >= 3 && !strcmp(argv[1], "-n")) { | |
113 strncpy(whoami, argv[2], LINLEN); | |
114 whoami[LINLEN - 1] = '\0'; | |
115 use_savedir = TRUE; | |
112
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116 if (snprintf(file_name, 256, "%s/%d-%s.srsav", SAVEDIR, |
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117 playuid, whoami) >= 256) { |
37 | 118 /* Just in case it doesn't fit */ |
119 strcpy(file_name, "srogue.save"); | |
120 use_savedir = FALSE; | |
121 } | |
122 } | |
123 #endif | |
124 | |
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125 if (!use_savedir) |
174 | 126 md_normaluser(); |
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127 |
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128 /* get home and options from environment */ |
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129 |
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130 if ((env = getenv("HOME")) != NULL) |
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131 strcpy(home, env); |
119 | 132 else { |
133 strncpy(home, md_gethomedir(), LINLEN); | |
134 if (home[LINLEN-1] != '\0') | |
135 home[0] = '\0'; | |
136 } | |
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137 |
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138 if (strcmp(home,"/") == 0) |
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139 home[0] = '\0'; |
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140 |
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141 if ((strlen(home) > 0) && (home[strlen(home)-1] != '/')) |
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142 strcat(home, "/"); |
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143 |
37 | 144 if (!use_savedir) { |
145 strcpy(file_name, home); | |
146 strcat(file_name, "srogue.sav"); | |
147 } | |
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148 |
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149 if ((env = getenv("ROGUEOPTS")) != NULL) |
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150 parse_opts(env); |
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151 |
37 | 152 if (!use_savedir && (env == NULL || whoami[0] == '\0')) |
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153 { |
119 | 154 strucpy(whoami, md_getusername(), strlen(md_getusername())); |
36
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155 } |
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156 |
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157 if (env == NULL || fruit[0] == '\0') |
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158 strcpy(fruit, "juicy-fruit"); |
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159 |
37 | 160 if (use_savedir) |
161 { | |
162 /* restore() won't return if the restore succeeded. If | |
163 * file_name doesn't exist, it will return TRUE. In that | |
164 * case, start a new game. */ | |
165 if (!restore(file_name, envp)) | |
166 exit(1); | |
167 } | |
168 else if (argc == 2) | |
36
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169 if(!restore(argv[1], envp)) /* NOTE: NEVER RETURNS */ |
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170 exit(1); |
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171 |
37 | 172 /* START NEW GAME */ |
173 | |
36
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174 dnum = (wizard && getenv("SEED") != NULL ? |
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175 atoi(getenv("SEED")) : lowtime + getpid()); |
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176 |
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177 if(wizard) |
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178 printf("Hello %s, welcome to dungeon #%d\n", whoami, dnum); |
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179 else |
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180 printf("Hello %s, One moment while I open the door to the dungeon...\n", whoami); |
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181 |
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182 fflush(stdout); |
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183 seed = dnum; |
121
e6c8652473fe
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120
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184 md_srandom(seed); /* init rnd number gen */ |
36
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185 |
119 | 186 md_onsignal_exit(); /* just in case */ |
36
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187 |
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188 init_everything(); |
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189 |
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190 #ifdef __INTERIX |
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191 setenv("TERM","interix"); |
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192 #endif |
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193 |
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194 initscr(); /* Start up cursor package */ |
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195 |
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196 if (strcmp(termname(),"dumb") == 0) |
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197 { |
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198 endwin(); |
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199 printf("ERROR in terminal parameters.\n"); |
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200 printf("Check TERM in environment.\n"); |
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201 byebye(1); |
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202 } |
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203 |
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204 if (LINES < 24 || COLS < 80) { |
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205 endwin(); |
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206 printf("ERROR: screen size too small\n"); |
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207 byebye(1); |
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208 } |
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209 |
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210 if ((whoami == NULL) || (*whoami == '\0') || (strcmp(whoami,"dosuser")==0)) |
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211 { |
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212 echo(); |
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213 mvaddstr(23,2,"Rogue's Name? "); |
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214 wgetnstr(stdscr,whoami,MAXSTR); |
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215 noecho(); |
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216 } |
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217 |
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218 if ((whoami == NULL) || (*whoami == '\0')) |
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219 strcpy(whoami,"Rodney"); |
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220 |
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221 setup(); |
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222 |
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223 /* Set up windows */ |
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224 |
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225 cw = newwin(0, 0, 0, 0); |
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226 mw = newwin(0, 0, 0, 0); |
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227 hw = newwin(0, 0, 0, 0); |
86 | 228 keypad(cw, 1); |
36
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229 waswizard = wizard; |
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230 |
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231 /* Draw current level */ |
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232 |
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233 new_level(NORMLEV); |
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234 |
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235 /* Start up daemons and fuses */ |
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236 |
107 | 237 start_daemon(status, TRUE, BEFORE); |
238 start_daemon(runners, TRUE, AFTER); | |
39 | 239 /* |
240 * These daemons have been moved to AFTER because BEFORE daemons | |
241 * get called every command, even invalid ones. Hopefully this | |
242 * won't break anything. | |
243 */ | |
107 | 244 start_daemon(doctor, TRUE, AFTER); |
245 start_daemon(stomach, TRUE, AFTER); | |
36
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246 fuse(swander, TRUE, WANDERTIME); |
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247 |
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248 /* Give the rogue his weaponry */ |
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249 |
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250 do { |
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251 wpt = pick_one(w_magic); |
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252 switch (wpt) |
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253 { |
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254 case MACE: case SWORD: case TWOSWORD: |
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255 case SPEAR: case TRIDENT: case SPETUM: |
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256 case BARDICHE: case PIKE: case BASWORD: |
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257 case HALBERD: |
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258 alldone = TRUE; |
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259 otherwise: |
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260 alldone = FALSE; |
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261 } |
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262 } while(!alldone); |
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263 |
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264 item = new_thing(FALSE, WEAPON, wpt); |
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265 obj = OBJPTR(item); |
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266 obj->o_hplus = rnd(3); |
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267 obj->o_dplus = rnd(3); |
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268 obj->o_flags = ISKNOW; |
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269 add_pack(item, TRUE); |
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270 cur_weapon = obj; |
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271 |
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272 /* Now a bow */ |
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273 |
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274 item = new_thing(FALSE, WEAPON, BOW); |
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275 obj = OBJPTR(item); |
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276 obj->o_hplus = rnd(3); |
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277 obj->o_dplus = rnd(3); |
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278 obj->o_flags = ISKNOW; |
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279 add_pack(item, TRUE); |
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280 |
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281 /* Now some arrows */ |
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282 |
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283 item = new_thing(FALSE, WEAPON, ARROW); |
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284 obj = OBJPTR(item); |
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285 obj->o_count = 25 + rnd(15); |
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286 obj->o_hplus = rnd(2); |
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287 obj->o_dplus = rnd(2); |
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288 obj->o_flags = ISKNOW; |
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289 add_pack(item, TRUE); |
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290 |
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291 /* And his suit of armor */ |
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292 |
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293 wpt = pick_one(a_magic); |
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294 item = new_thing(FALSE, ARMOR, wpt); |
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295 obj = OBJPTR(item); |
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296 obj->o_flags = ISKNOW; |
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297 obj->o_ac = armors[wpt].a_class - rnd(4); |
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298 cur_armor = obj; |
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299 add_pack(item, TRUE); |
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300 |
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301 /* Give him some food */ |
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302 |
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303 item = new_thing(FALSE, FOOD, 0); |
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304 add_pack(item, TRUE); |
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305 |
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306 playit(); |
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307 } |
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308 |
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309 |
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310 /* |
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311 * endit: |
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312 * Exit the program abnormally. |
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313 */ |
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314 void |
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315 endit(int a) |
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316 { |
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317 fatal("Ok, if you want to exit that badly, I'll have to allow it"); |
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318 } |
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319 |
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320 /* |
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321 * fatal: |
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322 * Exit the program, printing a message. |
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323 */ |
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324 |
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325 fatal(s) |
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326 char *s; |
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327 { |
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328 clear(); |
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329 refresh(); |
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330 endwin(); |
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331 fprintf(stderr,"%s\n\r",s); |
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332 fflush(stderr); |
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333 byebye(2); |
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334 } |
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335 |
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336 /* |
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337 * byebye: |
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338 * Exit here and reset the users terminal parameters |
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339 * to the way they were when he started |
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340 */ |
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341 |
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342 void |
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343 byebye(how) |
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344 int how; |
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345 { |
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346 if (!isendwin()) |
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347 endwin(); |
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348 |
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349 exit(how); /* exit like flag says */ |
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350 } |
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351 |
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352 |
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353 /* |
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354 * rnd: |
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355 * Pick a very random number. |
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356 */ |
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357 rnd(range) |
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358 int range; |
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359 { |
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360 reg int wh; |
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361 |
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362 if (range == 0) |
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363 wh = 0; |
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364 else { |
121
e6c8652473fe
srogue: more compatibility improvements.
John "Elwin" Edwards
parents:
120
diff
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365 wh = md_random() % range; |
36
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366 wh &= 0x7FFFFFFF; |
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367 } |
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368 return wh; |
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369 } |
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370 |
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371 /* |
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372 * roll: |
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373 * roll a number of dice |
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374 */ |
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|
375 roll(number, sides) |
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|
376 int number, sides; |
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|
377 { |
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378 reg int dtotal = 0; |
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|
379 |
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380 while(number-- > 0) |
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381 dtotal += rnd(sides)+1; |
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382 return dtotal; |
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|
383 } |
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|
384 |
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|
385 |
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|
386 /* |
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|
387 ** setup: Setup signal catching functions |
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|
388 */ |
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|
389 setup() |
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|
390 { |
119 | 391 md_onsignal_autosave(); |
36
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392 |
42 | 393 nonl(); |
36
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|
394 cbreak(); |
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|
395 noecho(); |
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|
396 } |
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|
397 |
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|
398 /* |
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|
399 ** playit: The main loop of the program. Loop until the game is over, |
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|
400 ** refreshing things and looking at the proper times. |
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401 */ |
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|
402 |
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|
403 playit() |
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|
404 { |
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Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
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|
405 reg char *opts; |
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|
406 |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
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|
407 /* parse environment declaration of options */ |
2128c7dc8a40
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|
408 |
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|
409 if ((opts = getenv("ROGUEOPTS")) != NULL) |
2128c7dc8a40
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|
410 parse_opts(opts); |
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|
411 |
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|
412 player.t_oldpos = hero; |
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|
413 oldrp = roomin(&hero); |
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|
414 nochange = FALSE; |
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diff
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|
415 while (playing) |
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416 command(); /* Command execution */ |
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|
417 endit(0); |
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parents:
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|
418 } |
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|
419 |
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|
420 |
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|
421 /* |
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|
422 ** author: See if a user is an author of the program |
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423 */ |
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|
424 author() |
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|
425 { |
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426 switch (playuid) { |
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427 case 100: |
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|
428 case 0: |
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429 return TRUE; |
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|
430 default: |
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431 return FALSE; |
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diff
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|
432 } |
2128c7dc8a40
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|
433 } |
2128c7dc8a40
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|
434 |
2128c7dc8a40
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435 int |
2128c7dc8a40
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|
436 directory_exists(char *dirname) |
2128c7dc8a40
Import Super-Rogue 9.0 from the Roguelike Restoration Project (r1490)
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|
437 { |
2128c7dc8a40
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|
438 struct stat sb; |
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|
439 |
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440 if (stat(dirname, &sb) == 0) /* path exists */ |
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441 return (S_ISDIR (sb.st_mode)); |
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parents:
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changeset
|
442 |
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|
443 return(0); |
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444 } |
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445 |
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446 char * |
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447 roguehome() |
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448 { |
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449 static char path[LINLEN+16]; |
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450 char *end,*home; |
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451 |
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452 if ( (home = getenv("ROGUEHOME")) != NULL) |
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453 { |
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454 if (*home) |
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455 { |
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456 /* LINLEN - 11 is all that will fit into scorefile */ |
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457 strncpy(path, home, LINLEN - 11); |
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458 if (path[LINLEN - 12] == '\0') |
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459 { |
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460 end = &path[strlen(path)-1]; |
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461 while( (end >= path) && ((*end == '/') || (*end == '\\'))) |
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462 *end-- = '\0'; |
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463 |
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464 if (directory_exists(path)) |
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465 return(path); |
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466 } |
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467 /* Otherwise home was truncated and should be ignored */ |
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468 } |
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469 } |
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470 |
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471 if (directory_exists("/var/games/roguelike")) |
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472 return("/var/games/roguelike"); |
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473 if (directory_exists("/var/lib/roguelike")) |
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474 return("/var/lib/roguelike"); |
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475 if (directory_exists("/var/roguelike")) |
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476 return("/var/roguelike"); |
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477 if (directory_exists("/usr/games/lib")) |
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478 return("/usr/games/lib"); |
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479 if (directory_exists("/games/roguelik")) |
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480 return("/games/roguelik"); |
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481 |
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482 return(NULL); |
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483 } |
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484 |
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485 void |
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486 open_records(void) |
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487 { |
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488 if (scorefd < 0) |
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489 scorefd = open(scorefile, O_RDWR | O_CREAT, 0666); |
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490 #ifdef LOGFILE |
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491 if (logfile == NULL) |
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492 logfile = fopen(LOGFILE, "a"); |
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493 #endif |
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494 } |
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495 |