1 /*

     2  *    Copyright 2007 Intel Corporation

     3  * 

     4  *    Licensed under the Apache License, Version 2.0 (the "License");

     5  *    you may not use this file except in compliance with the License.

     6  *    You may obtain a copy of the License at

     7  * 

     8  *        http://www.apache.org/licenses/LICENSE-2.0

     9  * 

    10  *    Unless required by applicable law or agreed to in writing, software

    11  *    distributed under the License is distributed on an "AS IS" BASIS,

    12  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    13  *    See the License for the specific language governing permissions and

    14  *    limitations under the License.

    15  */

    16 

    17 #include <stdio.h>

    18 #include "dtn_errno.h"

    19 

    20 //----------------------------------------------------------------------

    21 char*

    22 dtn_strerror(int err)

    23 {

    24     switch(err) {

    25     case DTN_SUCCESS: 	return "success";

    26     case DTN_EINVAL: 	return "invalid argument";

    27     case DTN_EXDR: 	return "error in xdr routines";

    28     case DTN_ECOMM: 	return "error in ipc communication";

    29     case DTN_ECONNECT: 	return "error connecting to server";

    30     case DTN_ETIMEOUT: 	return "operation timed out";

    31     case DTN_ESIZE: 	return "payload too large";

    32     case DTN_ENOTFOUND: return "not found";

    33     case DTN_EINTERNAL: return "internal error";

    34     case DTN_EINPOLL:   return "illegal operation called after dtn_poll";

    35     case DTN_EBUSY:     return "registration already in use";

    36     case DTN_EVERSION:  return "ipc version mismatch";

    37     case DTN_EMSGTYPE:  return "unknown ipc message type";

    38     case DTN_ENOSPACE:	return "no storage space";

    39     case -1:            return "(invalid error code -1)";

    40     }

    41 

    42     // there's a small race condition here in case there are two

    43     // simultaneous calls that will clobber the same buffer, but this

    44     // should be rare and the worst that happens is that the output

    45     // string is garbled

    46     static char buf[128];

    47     snprintf(buf, sizeof(buf), "(unknown error %d)", err);

    48     return buf;

    49 }

    50