view dgl/rlgwebd-compat.patch @ 55:e421ea2519ec

dgamelaunch: define user/group by name instead of UID/GID. The user and group might not be created with the UID and GID expected, so it is better to use names. They can be changed to numeric values after installation.
author John "Elwin" Edwards
date Sun, 11 May 2014 08:32:31 -0700
parents ce26225f7d9d
children c2127bc98694
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diff --git a/dgamelaunch.c b/dgamelaunch.c
index fbf6ef5..b52b545 100644
--- a/dgamelaunch.c
+++ b/dgamelaunch.c
@@ -1489,7 +1489,10 @@ int
 changepw (int dowrite)
 {
   char buf[DGL_PASSWDLEN+1];
+  char salt[21];
   int error = 2;
+  int i;
+  FILE *urandom;
 
   /* A precondition is that struct `me' exists because we can be not-yet-logged-in. */
   if (!me) {
@@ -1553,8 +1556,28 @@ changepw (int dowrite)
         error = 1;
     }
 
+  salt[0] = salt[2] = salt[19] = '$';
+  salt[1] = '6';
+  salt[20] = '\0';
+  urandom = fopen("/dev/urandom", "r");
+  for (i = 3; i < 19; i++) {
+    /* This does waste four random bytes. */
+    fread(salt + i, 1, 1, urandom);
+    salt[i] &= 0x3f;
+    if (salt[i] < 26)
+      salt[i] += 'a';
+    else if (salt[i] < 52)
+      salt[i] = 'A' + salt[i] - 26;
+    else if (salt[i] < 62)
+      salt[i] = '0' + salt[i] - 52;
+    else if (salt[i] == 62)
+      salt[i] = '.';
+    else
+      salt[i] = '/';
+  }
+  fclose(urandom);
   free(me->password);
-  me->password = strdup (crypt (buf, buf));
+  me->password = strdup (crypt (buf, salt));
 
   if (dowrite)
     writefile (0);
@@ -2053,6 +2076,8 @@ passwordgood (char *cpw)
 {
   assert (me != NULL);
 
+  if (!strncmp (crypt (cpw, me->password), me->password, DGL_PASSWDLEN))
+    return 1;
   if (!strncmp (crypt (cpw, cpw), me->password, DGL_PASSWDLEN))
     return 1;
   if (!strncmp (cpw, me->password, DGL_PASSWDLEN))
diff --git a/dgamelaunch.h b/dgamelaunch.h
index b9ce41c..ca5e11b 100644
--- a/dgamelaunch.h
+++ b/dgamelaunch.h
@@ -20,7 +20,7 @@
 #define dglsign(x) (x < 0 ? -1 : (x > 0 ? 1 : 0))
 
 #define DGL_PLAYERNAMELEN 30 /* max. length of player name */
-#define DGL_PASSWDLEN 20 /* max. length of passwords */
+#define DGL_PASSWDLEN 108 /* max. length of passwords */
 #define DGL_MAILMSGLEN 80 /* max. length of mail message */
 
 #define DGL_MAXWATCHCOLS 10
diff --git a/dgl-common.c b/dgl-common.c
index e5c80bc..fbc4eea 100644
--- a/dgl-common.c
+++ b/dgl-common.c
@@ -593,7 +593,7 @@ game_read_extra_info(struct dg_game *game, const char *extra_info_file)
 struct dg_game **
 populate_games (int xgame, int *l, struct dg_user *me)
 {
-  int fd, len, n, pid;
+  int fd, len, n, pid, is_node;
   DIR *pdir;
   struct dirent *pdirent;
   struct stat pstat;
@@ -631,13 +631,15 @@ populate_games (int xgame, int *l, struct dg_user *me)
 
       if (!inprog) continue;
 
+      is_node = strchr(pdirent->d_name, ':') && !strncmp(strchr(pdirent->d_name, ':'), ":node:", 6);
+
       snprintf (fullname, 130, "%s%s", inprog, pdirent->d_name);
 
       fd = 0;
       /* O_RDWR here should be O_RDONLY, but we need to test for
        * an exclusive lock */
       fd = open (fullname, O_RDWR);
-      if (fd >= 0 && (fcntl (fd, F_SETLK, &fl) == -1))
+      if (fd >= 0 && (is_node || (fcntl (fd, F_SETLK, &fl) == -1)))
         {
 		char *ttrecdir = NULL;
 		strncpy(playername, pdirent->d_name, DGL_PLAYERNAMELEN);
@@ -651,6 +653,9 @@ populate_games (int xgame, int *l, struct dg_user *me)
 		  graceful_exit(145);
 	      }
               replacestr++;
+              if (is_node) {
+                  replacestr += 5;
+              }
 
 	      ttrecdir = dgl_format_str(game, me, myconfig[game]->ttyrecdir, playername);
 	      if (!ttrecdir) continue;
@@ -673,6 +678,8 @@ populate_games (int xgame, int *l, struct dg_user *me)
               strlcpy (games[len]->name, pdirent->d_name,
                        strlen (pdirent->d_name) + 1);
 
+              if (is_node)
+                  replacestr += 5;
               games[len]->date = malloc (11);
               strlcpy (games[len]->date, replacestr + 1, 11);