mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
68 lines
2.1 KiB
68 lines
2.1 KiB
15 years ago
|
/* $Id: udns_misc.c,v 1.8 2005/04/05 22:51:32 mjt Exp $
|
||
|
|
miscellaneous routines
|
||
|
|
|
||
|
|
Copyright (C) 2005 Michael Tokarev <mjt@corpit.ru>
|
||
|
|
This file is part of UDNS library, an async DNS stub resolver.
|
||
|
|
|
||
|
|
This library is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2.1 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
This library 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
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with this library, in file named COPYING.LGPL; if not,
|
||
|
|
write to the Free Software Foundation, Inc., 59 Temple Place,
|
||
|
|
Suite 330, Boston, MA 02111-1307 USA
|
||
|
|
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "udns.h"
|
||
|
|
|
||
|
|
int dns_findname(const struct dns_nameval *nv, const char *name) {
|
||
|
|
register const char *a, *b;
|
||
|
|
for(; nv->name; ++nv)
|
||
|
|
for(a = name, b = nv->name; ; ++a, ++b)
|
||
|
|
if (DNS_DNUC(*a) != *b) break;
|
||
|
|
else if (!*a) return nv->val;
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *_dns_format_code(char *buf, const char *prefix, int code) {
|
||
|
|
char *bp = buf;
|
||
|
|
unsigned c, n;
|
||
|
|
do *bp++ = DNS_DNUC(*prefix);
|
||
|
|
while(*++prefix);
|
||
|
|
*bp++ = '#';
|
||
|
|
if (code < 0) code = -code, *bp++ = '-';
|
||
|
|
n = 0; c = code;
|
||
|
|
do ++n;
|
||
|
|
while((c /= 10));
|
||
|
|
c = code;
|
||
|
|
bp[n--] = '\0';
|
||
|
|
do bp[n--] = c % 10 + '0';
|
||
|
|
while((c /= 10));
|
||
|
|
return buf;
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *dns_strerror(int err) {
|
||
|
|
if (err >= 0) return "successeful completion";
|
||
|
|
switch(err) {
|
||
|
|
case DNS_E_TEMPFAIL: return "temporary failure in name resolution";
|
||
|
|
case DNS_E_PROTOCOL: return "protocol error";
|
||
|
|
case DNS_E_NXDOMAIN: return "domain name does not exist";
|
||
|
|
case DNS_E_NODATA: return "valid domain but no data of requested type";
|
||
|
|
case DNS_E_NOMEM: return "out of memory";
|
||
|
|
case DNS_E_BADQUERY: return "malformed query";
|
||
|
|
default: return "unknown error";
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
const char *dns_version(void) {
|
||
|
|
return UDNS_VERSION;
|
||
|
|
}
|