diff options
Diffstat (limited to 'pjlib-util/src/pjlib-util/errno.c')
| -rw-r--r-- | pjlib-util/src/pjlib-util/errno.c | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/pjlib-util/src/pjlib-util/errno.c b/pjlib-util/src/pjlib-util/errno.c new file mode 100644 index 0000000..36a6b2e --- /dev/null +++ b/pjlib-util/src/pjlib-util/errno.c @@ -0,0 +1,174 @@ +/* $Id: errno.c 3553 2011-05-05 06:14:19Z nanang $ */ +/* + * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) + * Copyright (C) 2003-2008 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 <pjlib-util/types.h> +#include <pj/assert.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_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"), + + /* HTTP Client */ + PJ_BUILD_ERR( PJLIB_UTIL_EHTTPINURL, "Invalid URL format"), + PJ_BUILD_ERR( PJLIB_UTIL_EHTTPINPORT, "Invalid URL port number"), + PJ_BUILD_ERR( PJLIB_UTIL_EHTTPINCHDR, "Incomplete response header received"), + PJ_BUILD_ERR( PJLIB_UTIL_EHTTPINSBUF, "Insufficient buffer"), + PJ_BUILD_ERR( PJLIB_UTIL_EHTTPLOST, "Connection lost"), +}; +#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) +{ + pj_status_t status; + + status = pj_register_strerror(PJLIB_UTIL_ERRNO_START, + PJ_ERRNO_SPACE_SIZE, + &pjlib_util_strerror); + pj_assert(status == PJ_SUCCESS); + + return PJ_SUCCESS; +} |