161 lines
6.1 KiB
C
161 lines
6.1 KiB
C
/* $Id$ */
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/*
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* Copyright (C) 2003-2007 Benny Prijono <benny@prijono.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <pjlib-util/errno.h>
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#include <pjlib-util/types.h>
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#include <pj/string.h>
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/* PJLIB_UTIL's own error codes/messages
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* MUST KEEP THIS ARRAY SORTED!!
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* Message must be limited to 64 chars!
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*/
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#if defined(PJ_HAS_ERROR_STRING) && PJ_HAS_ERROR_STRING!=0
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static const struct
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{
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int code;
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const char *msg;
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} err_str[] =
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{
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/* STUN errors */
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNRESOLVE, "Unable to resolve STUN server" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINMSGTYPE, "Unknown STUN message type" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINMSGLEN, "Invalid STUN message length" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINATTRLEN, "STUN attribute length error" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINATTRTYPE, "Invalid STUN attribute type" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNININDEX, "Invalid STUN server/socket index" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOBINDRES, "No STUN binding response in the message" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNRECVERRATTR, "Received STUN error attribute" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOMAP, "No STUN mapped address attribute" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOTRESPOND, "Received no response from STUN server" ),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNSYMMETRIC, "Symetric NAT detected by STUN" ),
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/* XML errors */
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PJ_BUILD_ERR( PJLIB_UTIL_EINXML, "Invalid XML message" ),
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/* DNS errors */
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSQRYTOOSMALL, "DNS query packet buffer is too small"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSINSIZE, "Invalid DNS packet length"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSINCLASS, "Invalid DNS class"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSINNAMEPTR, "Invalid DNS name pointer"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSINNSADDR, "Invalid DNS nameserver address"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSNONS, "No nameserver is in DNS resolver"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSNOWORKINGNS, "No working DNS nameserver"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSNOANSWERREC, "No answer record in the DNS response"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNSINANSWER, "Invalid DNS answer"),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_FORMERR, "DNS \"Format error\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_SERVFAIL, "DNS \"Server failure\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NXDOMAIN, "DNS \"Name Error\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NOTIMPL, "DNS \"Not Implemented\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_REFUSED, "DNS \"Refused\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_YXDOMAIN, "DNS \"The name exists\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_YXRRSET, "DNS \"The RRset (name, type) exists\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NXRRSET, "DNS \"The RRset (name, type) does not exist\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NOTAUTH, "DNS \"Not authorized\""),
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PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NOTZONE, "DNS \"The zone specified is not a zone\""),
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/* STUN */
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNTOOMANYATTR, "Too many STUN attributes"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNUNKNOWNATTR, "Unknown STUN attribute"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINADDRLEN, "Invalid STUN socket address length"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNIPV6NOTSUPP, "STUN IPv6 attribute not supported"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOTRESPONSE, "Expecting STUN response message"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINVALIDID, "STUN transaction ID mismatch"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOHANDLER, "Unable to find STUN handler for the request"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNMSGINTPOS, "Found non-FINGERPRINT attr. after MESSAGE-INTEGRITY"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNFINGERPOS, "Found STUN attribute after FINGERPRINT"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOUSERNAME, "Missing STUN USERNAME attribute"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNMSGINT, "Missing/invalid STUN MESSAGE-INTEGRITY attribute"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNDUPATTR, "Found duplicate STUN attribute"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOREALM, "Missing STUN REALM attribute"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNONCE, "Missing/stale STUN NONCE attribute value"),
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PJ_BUILD_ERR( PJLIB_UTIL_ESTUNTSXFAILED, "STUN transaction terminates with failure"),
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};
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#endif /* PJ_HAS_ERROR_STRING */
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/*
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* pjlib_util_strerror()
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*/
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pj_str_t pjlib_util_strerror(pj_status_t statcode,
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char *buf, pj_size_t bufsize )
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{
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pj_str_t errstr;
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#if defined(PJ_HAS_ERROR_STRING) && (PJ_HAS_ERROR_STRING != 0)
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if (statcode >= PJLIB_UTIL_ERRNO_START &&
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statcode < PJLIB_UTIL_ERRNO_START + PJ_ERRNO_SPACE_SIZE)
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{
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/* Find the error in the table.
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* Use binary search!
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*/
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int first = 0;
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int n = PJ_ARRAY_SIZE(err_str);
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while (n > 0) {
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int half = n/2;
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int mid = first + half;
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if (err_str[mid].code < statcode) {
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first = mid+1;
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n -= (half+1);
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} else if (err_str[mid].code > statcode) {
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n = half;
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} else {
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first = mid;
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break;
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}
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}
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if (PJ_ARRAY_SIZE(err_str) && err_str[first].code == statcode) {
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pj_str_t msg;
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msg.ptr = (char*)err_str[first].msg;
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msg.slen = pj_ansi_strlen(err_str[first].msg);
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errstr.ptr = buf;
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pj_strncpy_with_null(&errstr, &msg, bufsize);
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return errstr;
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}
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}
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#endif /* PJ_HAS_ERROR_STRING */
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/* Error not found. */
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errstr.ptr = buf;
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errstr.slen = pj_ansi_snprintf(buf, bufsize,
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"Unknown pjlib-util error %d",
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statcode);
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return errstr;
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}
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PJ_DEF(pj_status_t) pjlib_util_init(void)
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{
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return pj_register_strerror(PJLIB_UTIL_ERRNO_START,
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PJ_ERRNO_SPACE_SIZE,
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&pjlib_util_strerror);
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}
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