ofp-util: Work on decoding OF1.1 flow_mods.

[openvswitch] / lib / util.c

diff --git a/lib/util.c b/lib/util.c
index f9880f351ff8ca14870ca5589fd2fb7f9e18ca4e..cbcf693e1b6bf6e78c9e4e5d0baba40400ada371 100644 (file)
--- a/lib/util.c
+++ b/lib/util.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -34,7 +34,14 @@ VLOG_DEFINE_THIS_MODULE(util);
 
 COVERAGE_DEFINE(util_xalloc);
 
+/* argv[0] without directory names. */
 const char *program_name;
+
+/* Ordinarily "" but set to "monitor" for a monitor process or "worker" for a
+ * worker process. */
+const char *subprogram_name = "";
+
+/* --version option output. */
 static char *program_version;
 
 void
@@ -192,9 +199,14 @@ ovs_abort(int err_no, const char *format, ...)
     va_list args;
 
     va_start(args, format);
-    ovs_error_valist(err_no, format, args);
-    va_end(args);
+    ovs_abort_valist(err_no, format, args);
+}
 
+/* Same as ovs_abort() except that the arguments are supplied as a va_list. */
+void
+ovs_abort_valist(int err_no, const char *format, va_list args)
+{
+    ovs_error_valist(err_no, format, args);
     abort();
 }
 
@@ -243,7 +255,12 @@ ovs_error_valist(int err_no, const char *format, va_list args)
 {
     int save_errno = errno;
 
-    fprintf(stderr, "%s: ", program_name);
+    if (subprogram_name[0]) {
+        fprintf(stderr, "%s(%s): ", program_name, subprogram_name);
+    } else {
+        fprintf(stderr, "%s: ", program_name);
+    }
+
     vfprintf(stderr, format, args);
     if (err_no != 0) {
         fprintf(stderr, " (%s)", ovs_retval_to_string(err_no));