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annotate dgl/rlgwebd-compat.patch @ 97:fb292a0184d9

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Add a page about UltraRogue.
author John "Elwin" Edwards
date Mon, 05 Apr 2021 21:57:20 -0400
parents 1bddd1839831
children
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1 diff --git a/dgamelaunch.c b/dgamelaunch.c
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2 index fc831a9..cb03355 100644
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3 --- a/dgamelaunch.c
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4 +++ b/dgamelaunch.c
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5 @@ -1489,7 +1489,10 @@ int
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6 changepw (int dowrite)
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7 {
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8 char buf[DGL_PASSWDLEN+1];
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9 + char salt[21];
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10 int error = 2;
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11 + int i;
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12 + FILE *urandom;
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13
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14 /* A precondition is that struct `me' exists because we can be not-yet-logged-in. */
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15 if (!me) {
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16 @@ -1553,8 +1556,28 @@ changepw (int dowrite)
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17 error = 1;
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18 }
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19
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20 + salt[0] = salt[2] = salt[19] = '$';
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21 + salt[1] = '6';
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22 + salt[20] = '\0';
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23 + urandom = fopen("/dev/urandom", "r");
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24 + for (i = 3; i < 19; i++) {
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25 + /* This does waste four random bytes. */
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26 + fread(salt + i, 1, 1, urandom);
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27 + salt[i] &= 0x3f;
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28 + if (salt[i] < 26)
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29 + salt[i] += 'a';
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30 + else if (salt[i] < 52)
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31 + salt[i] = 'A' + salt[i] - 26;
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32 + else if (salt[i] < 62)
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33 + salt[i] = '0' + salt[i] - 52;
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34 + else if (salt[i] == 62)
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35 + salt[i] = '.';
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36 + else
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37 + salt[i] = '/';
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38 + }
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39 + fclose(urandom);
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40 free(me->password);
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41 - me->password = strdup (crypt (buf, buf));
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42 + me->password = strdup (crypt (buf, salt));
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43
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44 if (dowrite)
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45 writefile (0);
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46 @@ -2054,6 +2077,12 @@ passwordgood (char *cpw)
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47 char *crypted;
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48 assert (me != NULL);
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49
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50 + crypted = crypt (cpw, me->password);
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51 + if (crypted == NULL)
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52 + return 0;
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53 + if (!strncmp (crypted, me->password, DGL_PASSWDLEN))
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54 + return 1;
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55 +
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56 crypted = crypt (cpw, cpw);
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57 if (crypted == NULL)
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58 return 0;
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59 @@ -2870,6 +2899,8 @@ main (int argc, char** argv)
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60 }
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61 }
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62
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63 + umask(0002);
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64 +
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65 if (globalconfig.locale) {
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66 setlocale(LC_CTYPE, globalconfig.locale);
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67 }
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68 diff --git a/dgamelaunch.h b/dgamelaunch.h
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69 index e298adf..411c7c3 100644
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70 --- a/dgamelaunch.h
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71 +++ b/dgamelaunch.h
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72 @@ -20,7 +20,7 @@
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73 #define dglsign(x) (x < 0 ? -1 : (x > 0 ? 1 : 0))
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74
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75 #define DGL_PLAYERNAMELEN 30 /* max. length of player name */
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76 -#define DGL_PASSWDLEN 20 /* max. length of passwords */
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77 +#define DGL_PASSWDLEN 108 /* max. length of passwords */
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78 #define DGL_MAILMSGLEN 80 /* max. length of mail message */
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79
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80 #define DGL_MAXWATCHCOLS 10
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81 diff --git a/dgl-common.c b/dgl-common.c
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82 index 80560b5..94f7b69 100644
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83 --- a/dgl-common.c
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84 +++ b/dgl-common.c
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85 @@ -608,7 +608,7 @@ game_read_extra_info(struct dg_game *game, const char *extra_info_file)
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86 struct dg_game **
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87 populate_games (int xgame, int *l, struct dg_user *me)
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88 {
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89 - int fd, len, n, pid;