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/*
* Copyright (C) 2002 - 2004 Mike Wray <mike.wray@hp.com>.
*
* 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; if not, write to the Free Software Foundation,
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "sys_net.h"
#include "sys_string.h"
#ifndef __KERNEL__
# include <grp.h>
# include <pwd.h>
#endif
#include "util.h"
/** @file Various utility functions.
*/
/** Print an address (in network order) as an IPv4 address string
* in dot notation.
*
* @param io where to print address
* @param address to print (in network order)
* @return bytes printed
*/
int print_address(IOStream *io, unsigned long address){
#ifdef __KERNEL__
address = ntohl(address);
return IOStream_print(io, "%u.%u.%u.%u",
(unsigned)((address >> 24) & 0xff),
(unsigned)((address >> 16) & 0xff),
(unsigned)((address >> 8) & 0xff),
(unsigned)((address ) & 0xff));
#else
struct in_addr inaddr = { s_addr: address };
return IOStream_print(io, inet_ntoa(inaddr));
#endif
}
/** Get the protocol number for a protocol.
*
* @param name protocol name
* @param protocol where to put the protocol number
* @return 0 if OK, error otherwise
*/
int get_protocol_number(char *name, unsigned long *protocol){
#ifdef __KERNEL__
return -1;
#else
struct protoent *proto = getprotobyname(name);
if(!proto){
return -1;
}
*protocol = proto->p_proto;
return 0;
#endif
}
/** Get the protocol name for a protocol number.
*
* @param protocol number
* @return name or null
*/
char *get_protocol_name(unsigned long protocol){
#ifdef __KERNEL__
return 0;
#else
struct protoent *proto = getprotobynumber(protocol);
if(!proto){
return 0;
}
return proto->p_name;
#endif
}
/** Get the host name for an address.
*
* @param addr address
* @return host name or null
*/
char *get_host_name(unsigned long addr){
#ifdef __KERNEL__
return 0;
#else
struct in_addr inaddr;
struct hostent *host = 0;
inaddr.s_addr = addr;
host = gethostbyaddr((char*)&inaddr, sizeof(inaddr), AF_INET);
if(!host) return NULL;
return host->h_name;
#endif
}
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