From 781ef98e5441bf6aa12c50657bf2161953a79858 Mon Sep 17 00:00:00 2001
From: Jan Breuer <jan.breuer@jaybee.cz>
Date: 周二, 14 4月 2015 05:38:38 +0800
Subject: [PATCH] Add command handling tests, resolve bugs

---
 libscpi/src/ieee488.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/libscpi/src/ieee488.c b/libscpi/src/ieee488.c
index ad2bc78..e91d62a 100644
--- a/libscpi/src/ieee488.c
+++ b/libscpi/src/ieee488.c
@@ -250,10 +250,14 @@
  * @return 
  */
 scpi_result_t SCPI_CoreIdnQ(scpi_t * context) {
-    SCPI_ResultMnemonic(context, context->idn[0]);
-    SCPI_ResultMnemonic(context, context->idn[1]);
-    SCPI_ResultMnemonic(context, context->idn[2]);
-    SCPI_ResultMnemonic(context, context->idn[3]);
+    int i;
+    for (i = 0; i<4; i++) {
+        if (context->idn[i]) {
+            SCPI_ResultMnemonic(context, context->idn[i]);
+        } else {
+            SCPI_ResultMnemonic(context, "0");
+        }
+    }
     return SCPI_RES_OK;
 }
 

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