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1 /* |
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2 * Copyright 2007 Intel Corporation |
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3 * |
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4 * Licensed under the Apache License, Version 2.0 (the "License"); |
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5 * you may not use this file except in compliance with the License. |
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6 * You may obtain a copy of the License at |
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7 * |
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8 * http://www.apache.org/licenses/LICENSE-2.0 |
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9 * |
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10 * Unless required by applicable law or agreed to in writing, software |
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11 * distributed under the License is distributed on an "AS IS" BASIS, |
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12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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13 * See the License for the specific language governing permissions and |
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14 * limitations under the License. |
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15 */ |
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16 |
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17 #include <stdio.h> |
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18 #include "dtn_errno.h" |
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19 |
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20 //---------------------------------------------------------------------- |
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21 char* |
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22 dtn_strerror(int err) |
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23 { |
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24 switch(err) { |
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25 case DTN_SUCCESS: return "success"; |
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26 case DTN_EINVAL: return "invalid argument"; |
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27 case DTN_EXDR: return "error in xdr routines"; |
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28 case DTN_ECOMM: return "error in ipc communication"; |
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29 case DTN_ECONNECT: return "error connecting to server"; |
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30 case DTN_ETIMEOUT: return "operation timed out"; |
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31 case DTN_ESIZE: return "payload too large"; |
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32 case DTN_ENOTFOUND: return "not found"; |
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33 case DTN_EINTERNAL: return "internal error"; |
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34 case DTN_EINPOLL: return "illegal operation called after dtn_poll"; |
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35 case DTN_EBUSY: return "registration already in use"; |
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36 case DTN_EVERSION: return "ipc version mismatch"; |
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37 case DTN_EMSGTYPE: return "unknown ipc message type"; |
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38 case DTN_ENOSPACE: return "no storage space"; |
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39 case -1: return "(invalid error code -1)"; |
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40 } |
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41 |
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42 // there's a small race condition here in case there are two |
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43 // simultaneous calls that will clobber the same buffer, but this |
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44 // should be rare and the worst that happens is that the output |
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45 // string is garbled |
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46 static char buf[128]; |
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47 snprintf(buf, sizeof(buf), "(unknown error %d)", err); |
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48 return buf; |
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49 } |
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50 |