ip_options.c
tuexen (Michael Tuexen)
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	tuexen
	Jan 5 2019, 12:41 PM

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526 B

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ip_options.c
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	#include <sys/types.h>
	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <stdio.h>
	#include <unistd.h>

	int main(void)
	{
	int fd;
	socklen_t len;
	char val[] = {0x00, 0x00, 0x00, 0x00, 0xac, 0x14, 0x00, 0xaa};

	len = (socklen_t)sizeof(val);
	if ((fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
	perror("socket");
	}
	if (setsockopt(fd, IPPROTO_IP, IP_OPTIONS, val, len) != 0) {
	perror("setsockopt");
	}
	if (getsockopt(fd, IPPROTO_IP, IP_OPTIONS, val, &len) != 0) {
	perror("getsockopt");
	}
	return (0);
	}