From 8b9c796b10eada38203999ed8c5300902d96c690 Mon Sep 17 00:00:00 2001
From: Joshua Kwan <joshk@triplehelix.org>
Date: Wed, 21 Jan 2004 01:57:44 +0000
Subject: [PATCH] Add ability to change location of passwd and lockfile.

git-svn-id: svn://katsu.triplehelix.org/dgamelaunch/trunk@137 db0b04b0-f4d1-0310-9a6d-de3e77497b0e
---
 config.l         |  2 ++
 config.y         | 25 +++++++++++++++++++------
 dgamelaunch.c    | 10 ++++++----
 dgamelaunch.conf |  5 +++++
 dgamelaunch.h    |  2 ++
 5 files changed, 34 insertions(+), 10 deletions(-)

diff --git a/config.l b/config.l
index 8ee48a6..11146c4 100644
--- a/config.l
+++ b/config.l
@@ -59,6 +59,8 @@ LONGCOMMENT	"/*"
 "spooldir"	{ return TYPE_PATH_SPOOL; }
 "banner"	{ return TYPE_PATH_BANNER; }
 "rc_template"	{ return TYPE_PATH_CANNED; }
+"passwd"	{ return TYPE_PATH_PASSWD; }
+"lockfile"	{ return TYPE_PATH_LOCKFILE; }
 
 \n		{ line++; col = 0; }
 
diff --git a/config.y b/config.y
index c211e26..5382444 100644
--- a/config.y
+++ b/config.y
@@ -26,6 +26,7 @@ static const char* lookup_token (int t);
 %token TYPE_SUSER TYPE_SGROUP TYPE_SGID TYPE_SUID TYPE_MAX
 %token TYPE_PATH_NETHACK TYPE_PATH_DGLDIR TYPE_PATH_SPOOL
 %token TYPE_PATH_BANNER TYPE_PATH_CANNED TYPE_PATH_CHROOT
+%token TYPE_PATH_PASSWD TYPE_PATH_LOCKFILE
 %token <s> TYPE_VALUE
 %token <i> TYPE_NUMBER
 %type  <kt> KeyType
@@ -84,32 +85,42 @@ KeyPair: KeyType '=' TYPE_VALUE {
 
     case TYPE_PATH_CHROOT:
       if (myconfig->chroot) free(myconfig->chroot);
-        myconfig->chroot = strdup ($3);
+      myconfig->chroot = strdup ($3);
       break;
 
     case TYPE_PATH_NETHACK:
       if (myconfig->nethack) free(myconfig->nethack);
-        myconfig->nethack = strdup ($3);
+      myconfig->nethack = strdup ($3);
       break;
 
     case TYPE_PATH_DGLDIR:
       if (myconfig->dglroot) free(myconfig->dglroot);
-        myconfig->dglroot = strdup ($3);
+      myconfig->dglroot = strdup ($3);
       break;
 
     case TYPE_PATH_BANNER:
       if (myconfig->banner) free(myconfig->banner);
-        myconfig->banner = strdup($3);
+      myconfig->banner = strdup($3);
       break;
 
     case TYPE_PATH_CANNED:
       if (myconfig->rcfile) free(myconfig->rcfile);
-        myconfig->rcfile = strdup($3);
+      myconfig->rcfile = strdup($3);
       break;
 
     case TYPE_PATH_SPOOL:
       if (myconfig->spool) free (myconfig->spool);
-        myconfig->spool = strdup($3);
+      myconfig->spool = strdup($3);
+      break;
+
+    case TYPE_PATH_LOCKFILE:
+      if (myconfig->lockfile) free (myconfig->lockfile);
+      myconfig->lockfile = strdup($3);
+      break;
+
+    case TYPE_PATH_PASSWD:
+      if (myconfig->passwd) free(myconfig->passwd);
+      myconfig->passwd = strdup($3);
       break;
 
     default:
@@ -171,6 +182,8 @@ KeyType : TYPE_SUSER	{ $$ = TYPE_SUSER; }
 	| TYPE_PATH_SPOOL	{ $$ = TYPE_PATH_SPOOL; }
 	| TYPE_PATH_BANNER	{ $$ = TYPE_PATH_BANNER; }
 	| TYPE_PATH_CANNED	{ $$ = TYPE_PATH_CANNED; }
+	| TYPE_PATH_PASSWD	{ $$ = TYPE_PATH_PASSWD; }
+	| TYPE_PATH_LOCKFILE	{ $$ = TYPE_PATH_LOCKFILE; }
 	;
 
 %%
diff --git a/dgamelaunch.c b/dgamelaunch.c
index e1dab33..a6c07b0 100644
--- a/dgamelaunch.c
+++ b/dgamelaunch.c
@@ -109,6 +109,8 @@ struct dg_config defconfig = {
   "/var/lib/dgamelaunch/",
   "/bin/nethack",
   "/dgldir/",
+  "/dgl-lock",
+  "/dgl-login",
   "/dgl-banner",
   "/dgl-default-rcfile",
   "/var/mail/",
@@ -1000,14 +1002,14 @@ readfile (int nolock)
 
   if (!nolock)
     {
-      fpl = fopen ("/dgl-lock", "r");
+      fpl = fopen (myconfig->lockfile, "r");
       if (!fpl)
         graceful_exit (106);
       if (fcntl (fileno (fpl), F_SETLKW, &fl) == -1)
         graceful_exit (114);
     }
 
-  fp = fopen ("/dgl-login", "r");
+  fp = fopen (myconfig->passwd, "r");
   if (!fp)
     graceful_exit (106);
 
@@ -1191,7 +1193,7 @@ writefile (int requirenew)
   fl.l_start = 0;
   fl.l_len = 0;
 
-  fpl = fopen ("/dgl-lock", "r+");
+  fpl = fopen (myconfig->lockfile, "r+");
   if (!fpl)
     graceful_exit (115);
   if (fcntl (fileno (fpl), F_SETLK, &fl))
@@ -1202,7 +1204,7 @@ writefile (int requirenew)
   freefile ();
   readfile (1);
 
-  fp = fopen ("/dgl-login", "w");
+  fp = fopen (myconfig->passwd, "w");
   if (!fp)
     graceful_exit (104);
 
diff --git a/dgamelaunch.conf b/dgamelaunch.conf
index dfed64b..9fdd204 100644
--- a/dgamelaunch.conf
+++ b/dgamelaunch.conf
@@ -38,4 +38,9 @@ banner = "/dgl-banner"
 # From inside the jail, the default .nethackrc that is copied for new users.
 rc_template = "/dgl-default-rcfile"
 
+# The defaults are usually just fine for this. passwd refers to the file
+# that stores the user database, and lockfile is only used internally by
+# dgamelaunch.
 
+passwd = "/dgl-login"
+lockfile = "/dgl-lock"
diff --git a/dgamelaunch.h b/dgamelaunch.h
index e980ee1..f8189ad 100644
--- a/dgamelaunch.h
+++ b/dgamelaunch.h
@@ -42,6 +42,8 @@ struct dg_config
   char* chroot;
   char* nethack;
   char* dglroot;
+  char* lockfile;
+  char* passwd;
   char* banner;
   char* rcfile;
   char* spool;
-- 
2.47.3