From 5a5250218db5ecf87ff03106b7575419865d07ba Mon Sep 17 00:00:00 2001
From: nancy.liao <huihui.liao@greentest.com.cn>
Date: 周三, 16 4月 2025 18:59:28 +0800
Subject: [PATCH] scpi修改

---
 libscpi/src/error.c |   58 ++++++++++++++++++++++++++++++++--------------------------
 1 files changed, 32 insertions(+), 26 deletions(-)

diff --git a/libscpi/src/error.c b/libscpi/src/error.c
index f5f4699..00f4869 100644
--- a/libscpi/src/error.c
+++ b/libscpi/src/error.c
@@ -1,30 +1,30 @@
 /*-
- * Copyright (c) 2012-2013 Jan Breuer,
+ * BSD 2-Clause License
  *
- * All Rights Reserved
+ * Copyright (c) 2012-2018, Jan Breuer
+ * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
+ * modification, are permitted provided that the following conditions are met:
  *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
- * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * * Redistributions of source code must retain the above copyright notice, this
+ *   list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ *   this list of conditions and the following disclaimer in the documentation
+ *   and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-
 /**
  * @file   scpi_error.c
  * @date   Thu Nov 15 10:58:45 UTC 2012
@@ -36,11 +36,11 @@
 
 #include <stdint.h>
 
-#include "scpi/parser.h"
-#include "scpi/ieee488.h"
-#include "scpi/error.h"
+#include <scpi/parser.h>
+#include <scpi/ieee488.h>
+#include <scpi/error.h>
 #include "fifo_private.h"
-#include "scpi/constants.h"
+#include <scpi/constants.h>
 
 #if USE_DEVICE_DEPENDENT_ERROR_INFORMATION
 #define SCPI_ERROR_SETVAL(e, c, i) do { (e)->error_code = (c); (e)->device_dependent_info = (i); } while(0)
@@ -130,7 +130,13 @@
 
 static scpi_bool_t SCPI_ErrorAddInternal(scpi_t * context, int16_t err, char * info, size_t info_len) {
     scpi_error_t error_value;
-    char * info_ptr = info ? SCPIDEFINE_strndup(&context->error_info_heap, info, info_len) : NULL;
+    /* SCPIDEFINE_strndup is sometimes a dumy that does not reference it's arguments. 
+       Since info_len is not referenced elsewhere caoing to void prevents unusd argument warnings */
+    (void) info_len;
+    char * info_ptr = NULL;
+    if (info) {
+        info_ptr = SCPIDEFINE_strndup(&context->error_info_heap, info, info_len);
+    }
     SCPI_ERROR_SETVAL(&error_value, err, info_ptr);
     if (!fifo_add(&context->error_queue, &error_value)) {
         SCPIDEFINE_free(&context->error_info_heap, error_value.device_dependent_info, true);

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