files added for getdns_get_errorstr_by_id()

src/getdns/getdns_error.h

@@ -0,0 +1,70 @@
+/**
+ * \file
+ * \brief include this header in your application to use getdns API
+ * This source was taken from the original pseudo-implementation by
+ * Paul Hoffman.
+ */
+/* The MIT License (MIT)
+ * Copyright (c) 2013 Verisign, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef GETDNS_ERROR_H
+#define GETDNS_ERROR_H
+
+#include <getdns/getdns.h>
+
+
+
+struct getdns_struct_lookup_table { /* may or may not want to move this into */
+    int id;                         /* getdns.h if it's more generally useful */
+    const char *name;
+};
+
+typedef struct getdns_struct_lookup_table getdns_lookup_table;
+
+/**
+ * \defgroup error_table error number to string mapping
+ * @{
+ */
+
+getdns_lookup_table getdns_error_str[] = {
+    { GETDNS_RETURN_GOOD, "Good" },
+    { GETDNS_RETURN_GENERIC_ERROR, "Generic error" },
+    { GETDNS_RETURN_BAD_DOMAIN_NAME, "Badly-formed domain name" },
+    { GETDNS_RETURN_BAD_CONTEXT, "Bad value for a context type" },
+    { GETDNS_RETURN_CONTEXT_UPDATE_FAIL, "Did not update the context" },
+    { GETDNS_RETURN_UNKNOWN_TRANSACTION, "An attempt was made to cancel a callback with a transaction_id that is not recognized" },
+    { GETDNS_RETURN_NO_SUCH_LIST_ITEM, "A helper function for lists had an index argument that was too high" },
+    { GETDNS_RETURN_NO_SUCH_DICT_NAME, "A helper function for dicts had a name argument that for a name that is not in the dict" },
+    { GETDNS_RETURN_WRONG_TYPE_REQUESTED, "A helper function was supposed to return a certain type for an item, but the wrong type was given" },
+    { GETDNS_RETURN_NO_SUCH_EXTENSION, "A name in the extensions dict is not a valid extension" },
+    { GETDNS_RETURN_EXTENSION_MISFORMAT, "One or more of the extensions is has a bad format" },
+    { GETDNS_RETURN_DNSSEC_WITH_STUB_DISALLOWED, "A query was made with a context that is using stub resolution and a DNSSEC extension specified" },
+    { 0, "" }
+};
+
+typedef enum getdns_enum_status getdns_status;
+const char *getdns_get_errorstr_by_id(uint16_t err);
+
+/** @}
+ */
+
+#endif /* GETDNS_ERROR_H */

src/getdns_error.c

@@ -0,0 +1,54 @@
+/**
+ *
+ * /brief getdns error code to string functon
+ * 
+ */
+
+/* The MIT License (MIT)
+ * Copyright (c) 2013 Verisign, Include.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+
+#include <getdns/getdns.h>
+#include <getdns/getdns_error.h>
+
+/*---------------------------------------- getdns_get_errorstr_by_id() */
+/**
+ * return error string from getdns return
+ * heavily modeled on ldns ldns_get_errorstr_by_id
+ * @param err getdns_return_t
+ * @return string containing error message
+ */
+
+
+const char *
+getdns_get_errorstr_by_id(uint16_t err)
+{
+    getdns_lookup_table *lt;
+
+    lt = getdns_error_str;
+    while (lt->name != 0)  {
+        if (lt->id == err)
+            return lt->name;
+        lt++;
+    }
+    return 0;
+}