/* $Id$ */ /* * Copyright (C) 2008-2009 Teluu Inc. (http://www.teluu.com) * Copyright (C) 2003-2008 Benny Prijono * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include #include #include /* PJLIB_UTIL's own error codes/messages * MUST KEEP THIS ARRAY SORTED!! * Message must be limited to 64 chars! */ #if defined(PJ_HAS_ERROR_STRING) && PJ_HAS_ERROR_STRING!=0 static const struct { int code; const char *msg; } err_str[] = { /* STUN errors */ PJ_BUILD_ERR( PJLIB_UTIL_ESTUNRESOLVE, "Unable to resolve STUN server" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINMSGTYPE, "Unknown STUN message type" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINMSGLEN, "Invalid STUN message length" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINATTRLEN, "STUN attribute length error" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINATTRTYPE, "Invalid STUN attribute type" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNININDEX, "Invalid STUN server/socket index" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOBINDRES, "No STUN binding response in the message" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNRECVERRATTR, "Received STUN error attribute" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOMAP, "No STUN mapped address attribute" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOTRESPOND, "Received no response from STUN server" ), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNSYMMETRIC, "Symetric NAT detected by STUN" ), /* XML errors */ PJ_BUILD_ERR( PJLIB_UTIL_EINXML, "Invalid XML message" ), /* DNS errors */ PJ_BUILD_ERR( PJLIB_UTIL_EDNSQRYTOOSMALL, "DNS query packet buffer is too small"), PJ_BUILD_ERR( PJLIB_UTIL_EDNSINSIZE, "Invalid DNS packet length"), PJ_BUILD_ERR( PJLIB_UTIL_EDNSINCLASS, "Invalid DNS class"), PJ_BUILD_ERR( PJLIB_UTIL_EDNSINNAMEPTR, "Invalid DNS name pointer"), PJ_BUILD_ERR( PJLIB_UTIL_EDNSINNSADDR, "Invalid DNS nameserver address"), PJ_BUILD_ERR( PJLIB_UTIL_EDNSNONS, "No nameserver is in DNS resolver"), PJ_BUILD_ERR( PJLIB_UTIL_EDNSNOWORKINGNS, "No working DNS nameserver"), PJ_BUILD_ERR( PJLIB_UTIL_EDNSNOANSWERREC, "No answer record in the DNS response"), PJ_BUILD_ERR( PJLIB_UTIL_EDNSINANSWER, "Invalid DNS answer"), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_FORMERR, "DNS \"Format error\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_SERVFAIL, "DNS \"Server failure\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NXDOMAIN, "DNS \"Name Error\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NOTIMPL, "DNS \"Not Implemented\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_REFUSED, "DNS \"Refused\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_YXDOMAIN, "DNS \"The name exists\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_YXRRSET, "DNS \"The RRset (name, type) exists\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NXRRSET, "DNS \"The RRset (name, type) does not exist\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NOTAUTH, "DNS \"Not authorized\""), PJ_BUILD_ERR( PJLIB_UTIL_EDNS_NOTZONE, "DNS \"The zone specified is not a zone\""), /* STUN */ PJ_BUILD_ERR( PJLIB_UTIL_ESTUNTOOMANYATTR, "Too many STUN attributes"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNUNKNOWNATTR, "Unknown STUN attribute"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINADDRLEN, "Invalid STUN socket address length"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNIPV6NOTSUPP, "STUN IPv6 attribute not supported"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOTRESPONSE, "Expecting STUN response message"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNINVALIDID, "STUN transaction ID mismatch"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOHANDLER, "Unable to find STUN handler for the request"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNMSGINTPOS, "Found non-FINGERPRINT attr. after MESSAGE-INTEGRITY"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNFINGERPOS, "Found STUN attribute after FINGERPRINT"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOUSERNAME, "Missing STUN USERNAME attribute"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNMSGINT, "Missing/invalid STUN MESSAGE-INTEGRITY attribute"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNDUPATTR, "Found duplicate STUN attribute"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNOREALM, "Missing STUN REALM attribute"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNNONCE, "Missing/stale STUN NONCE attribute value"), PJ_BUILD_ERR( PJLIB_UTIL_ESTUNTSXFAILED, "STUN transaction terminates with failure"), }; #endif /* PJ_HAS_ERROR_STRING */ /* * pjlib_util_strerror() */ pj_str_t pjlib_util_strerror(pj_status_t statcode, char *buf, pj_size_t bufsize ) { pj_str_t errstr; #if defined(PJ_HAS_ERROR_STRING) && (PJ_HAS_ERROR_STRING != 0) if (statcode >= PJLIB_UTIL_ERRNO_START && statcode < PJLIB_UTIL_ERRNO_START + PJ_ERRNO_SPACE_SIZE) { /* Find the error in the table. * Use binary search! */ int first = 0; int n = PJ_ARRAY_SIZE(err_str); while (n > 0) { int half = n/2; int mid = first + half; if (err_str[mid].code < statcode) { first = mid+1; n -= (half+1); } else if (err_str[mid].code > statcode) { n = half; } else { first = mid; break; } } if (PJ_ARRAY_SIZE(err_str) && err_str[first].code == statcode) { pj_str_t msg; msg.ptr = (char*)err_str[first].msg; msg.slen = pj_ansi_strlen(err_str[first].msg); errstr.ptr = buf; pj_strncpy_with_null(&errstr, &msg, bufsize); return errstr; } } #endif /* PJ_HAS_ERROR_STRING */ /* Error not found. */ errstr.ptr = buf; errstr.slen = pj_ansi_snprintf(buf, bufsize, "Unknown pjlib-util error %d", statcode); return errstr; } PJ_DEF(pj_status_t) pjlib_util_init(void) { return pj_register_strerror(PJLIB_UTIL_ERRNO_START, PJ_ERRNO_SPACE_SIZE, &pjlib_util_strerror); }