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/*
* Copyright (C) 2000-2003 by Darren Reed.
*
* See the IPFILTER.LICENCE file for details on licencing.
*
* $Id: portname.c,v 1.7.2.1 2006/06/16 17:21:09 darrenr Exp $
*/
#include "ipf.h"
char *portname(pr, port)
int pr, port;
{
static char buf[32];
struct protoent *p = NULL;
struct servent *sv = NULL, *sv1 = NULL;
if ((opts & OPT_NORESOLVE) == 0) {
if (pr == -1) {
if ((sv = getservbyport(htons(port), "tcp"))) {
strncpy(buf, sv->s_name, sizeof(buf)-1);
buf[sizeof(buf)-1] = '\0';
sv1 = getservbyport(htons(port), "udp");
sv = strncasecmp(buf, sv->s_name, strlen(buf)) ?
NULL : sv1;
}
if (sv)
return buf;
} else if ((pr != -2) && (p = getprotobynumber(pr))) {
if ((sv = getservbyport(htons(port), p->p_name))) {
strncpy(buf, sv->s_name, sizeof(buf)-1);
buf[sizeof(buf)-1] = '\0';
return buf;
}
}
}
(void) sprintf(buf, "%d", port);
return buf;
}
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