Changeset 447 for trunk/src/tools/card_eventmgr.c

Timestamp:

08/25/10 08:26:39 (21 months ago)

Author:

ludovic.rousseau

Message:

Do not call SCardEstablishContext() before daemonize since pcsc-lite
handles are invalid after a fork.

Thanks to Patrik Martinsson for the patch
http://www.opensc-project.org/pipermail/opensc-devel/2010-August/014632.html

File:

• trunk/src/tools/card_eventmgr.c (modified) (2 diffs)

trunk/src/tools/card_eventmgr.c

@@ -342 +342 @@
     }
 
-    rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &hContext);
-    if (rv != SCARD_S_SUCCESS) {
-        DBG1("SCardEstablishContext: Cannot Connect to Resource Manager %lX", rv);
-        if (ctx) scconf_free(ctx);
-        return 1;
-    }
-
     /* put my self into background if flag is set */
     if (daemonize) {
@@ -358 +351 @@
     }
 
+    /* establish pc/sc handle _after_ possible fork */ 
+    rv = SCardEstablishContext(SCARD_SCOPE_SYSTEM, NULL, NULL, &hContext);
+    if (rv != SCARD_S_SUCCESS) {
+        DBG1("SCardEstablishContext: Cannot Connect to Resource Manager %lX", rv);
+        if (ctx)
+            scconf_free(ctx);
+        return 1;
+    }
+    
     signal(SIGINT, signal_trap);
     signal(SIGQUIT, signal_trap);