| 1 | /*
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| 2 | * Copyright (c) 1999 Kungliga Tekniska Högskolan
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| 3 | * (Royal Institute of Technology, Stockholm, Sweden).
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | *
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| 13 | * 2. Redistributions in binary form must reproduce the above copyright
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| 14 | * notice, this list of conditions and the following disclaimer in the
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| 15 | * documentation and/or other materials provided with the distribution.
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| 16 | *
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| 17 | * 3. Neither the name of the Institute nor the names of its contributors
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| 18 | * may be used to endorse or promote products derived from this software
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| 19 | * without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 31 | * SUCH DAMAGE.
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| 32 | */
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| 33 |
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| 34 | #include <config.h>
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| 35 |
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| 36 | #include "roken.h"
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| 37 |
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| 38 | static struct gai_error {
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| 39 | int code;
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| 40 | const char *str;
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| 41 | } errors[] = {
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| 42 | {EAI_NOERROR, "no error"},
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| 43 | #ifdef EAI_ADDRFAMILY
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| 44 | {EAI_ADDRFAMILY, "address family for nodename not supported"},
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| 45 | #endif
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| 46 | {EAI_AGAIN, "temporary failure in name resolution"},
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| 47 | {EAI_BADFLAGS, "invalid value for ai_flags"},
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| 48 | {EAI_FAIL, "non-recoverable failure in name resolution"},
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| 49 | {EAI_FAMILY, "ai_family not supported"},
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| 50 | {EAI_MEMORY, "memory allocation failure"},
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| 51 | #ifdef EAI_NODATA
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| 52 | {EAI_NODATA, "no address associated with nodename"},
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| 53 | #endif
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| 54 | {EAI_NONAME, "nodename nor servname provided, or not known"},
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| 55 | {EAI_SERVICE, "servname not supported for ai_socktype"},
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| 56 | {EAI_SOCKTYPE, "ai_socktype not supported"},
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| 57 | {EAI_SYSTEM, "system error returned in errno"},
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| 58 | {0, NULL},
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| 59 | };
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| 60 |
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| 61 | /*
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| 62 | *
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| 63 | */
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| 64 |
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| 65 | ROKEN_LIB_FUNCTION const char * ROKEN_LIB_CALL
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| 66 | gai_strerror(int ecode)
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| 67 | {
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| 68 | struct gai_error *g;
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| 69 |
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| 70 | for (g = errors; g->str != NULL; ++g)
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| 71 | if (g->code == ecode)
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| 72 | return g->str;
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| 73 | return "unknown error code in gai_strerror";
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| 74 | }
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