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/* $Id$ */
/*
* Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org>
*
* 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 <pjlib-util/errno.h>
#include <pj/string.h>
/* 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_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\""),
};
#endif /* PJ_HAS_ERROR_STRING */
/*
* pjlib_util_strerror()
*/
PJ_DEF(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);
}
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