42-archive/nmap/libft/srcs/net/reserve_port.c
2017-10-24 21:48:39 +02:00

28 lines
1.1 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* reserve_port.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/10/07 18:02:55 by jhalford #+# #+# */
/* Updated: 2017/10/24 17:30:41 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "net.h"
int reserve_port(int s, struct sockaddr *sa)
{
unsigned short i;
i = 49152;
while (i < 65535)
{
((struct sockaddr_in*)sa)->sin_port = htons(i);
if (bind(s, sa, sizeof(sa)) == 0)
return (0);
++i;
}
return (1);
}