X-Git-Url: http://git.marmaro.de/?p=mmh;a=blobdiff_plain;f=sbr%2Fcontext_read.c;h=32051c525134f331537485f130f371b1bf58a97a;hp=fcc12f99c29c9037a75ef9bdbb3af480b2536a04;hb=1bb1f6c3f38b05060bf699ea2743f7386889bf63;hpb=0e7106da702d97e10f3bd24d8284a2ab86044ebd

diff --git a/sbr/context_read.c b/sbr/context_read.c
index fcc12f9..32051c5 100644
--- a/sbr/context_read.c
+++ b/sbr/context_read.c
@@ -39,6 +39,13 @@ context_read (void)
     register	FILE		*ib;		/* profile and context file pointer */
 
     /*
+     *  If this routine _is_ called again (despite the wanings in the
+     *  comments above), return immediately.
+     */
+    if ( m_defs != 0 )
+        return;
+
+    /*
      *	Find user's home directory.  Try the HOME environment variable first,
      *	the home directory field in the password file if that's not found.
      */
@@ -120,8 +127,11 @@ context_read (void)
     if ((cp = getenv ("MHCONTEXT")) == (char *)0 || *cp == '\0')
 	cp = context;
 
-    /* context is NULL if context_foil() was called to disable use of context */
-    if (!cp) {
+    /* context is NULL if context_foil() was called to disable use of context
+     * We also support users setting explicitly setting MHCONTEXT to /dev/null.
+     * (if this wasn't specialcased then the locking would be liable to fail)
+     */
+    if (!cp || (strcmp(cp,"/dev/null") == 0)) {
 	ctxpath = NULL;
 	return;
     }