52 lines
1.5 KiB
C
52 lines
1.5 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* ip.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2017/10/24 17:22:16 by jhalford #+# #+# */
|
|
/* Updated: 2017/10/26 17:10:53 by jhalford ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "nmap.h"
|
|
|
|
/*
|
|
** some libmill ip extensions
|
|
*/
|
|
|
|
uint16_t ipport(ipaddr ip)
|
|
{
|
|
return (ntohs(((struct sockaddr_in*)&ip)->sin_port));
|
|
}
|
|
|
|
uint16_t ipfamily(ipaddr ip)
|
|
{
|
|
return (((struct sockaddr*)&ip)->sa_family);
|
|
}
|
|
|
|
uint16_t ipmode(ipaddr ip)
|
|
{
|
|
if (((struct sockaddr*)&ip)->sa_family == AF_INET)
|
|
return (IPADDR_IPV4);
|
|
else
|
|
return (IPADDR_IPV6);
|
|
}
|
|
|
|
ipaddr iplocal_randport(const char *name, int mode, int sock)
|
|
{
|
|
unsigned short port;
|
|
ipaddr ip;
|
|
|
|
port = 49152;
|
|
while (port < 65535)
|
|
{
|
|
ip = iplocal(name, port, mode);
|
|
if (bind(sock, (struct sockaddr*)&ip, sizeof(ip)) == 0)
|
|
return (ip);
|
|
++port;
|
|
}
|
|
errno = EBUSY;
|
|
return (ip);
|
|
}
|