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#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <errno.h>
#include <stdlib.h>

int main(int argc, char *argv[])
{
	int sock = socket(AF_LOCAL, SOCK_STREAM, 0);
	if(sock == -1)
	   printf("Error\n");
	
	int enable=1;
	int ret = setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (const char*)&enable, sizeof(enable));
	if(ret==-1)
	    perror("Error");
    else
        printf("Sucess\n");
	
	int optval;
	int optlen;
	ret = getsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &optval, &optlen);
	if(ret==0)
	{
       if(optval != 0)
           printf("SO_REUSEADDR enabled\n");
       else
           printf("SO_REUSEADDR disabled\n");
    }
	else
	{
		if(errno==EBADF)
            printf("The argument sockfd is not a valid file descriptor.\n");
		else if(errno==EFAULT)
		    printf("The address pointed to by optval is not in a valid part of.the process address space.  For getsockopt(), this error may also be returned if optlen is not in a valid part of the process address space.\n");
		else if(errno==EINVAL)
		    printf("optlen invalid in setsockopt().  In some cases this error.can also occur for an invalid value in optval (e.g., for the IP_ADD_MEMBERSHIP option described in ip(7)).\n");
		else if(errno==ENOPROTOOPT)
		    printf("The option is unknown at the level indicated.\n");
		else if(errno==ENOTSOCK)
		    printf("The file descriptor sockfd does not refer to a socket.\n");
	}
	
	char *name;
	name="ccmni0";
	if( (setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE, name, 6)) < 0)
	   printf("SO_BINDTODEVICE error\n");
	char *arr[7];
	int ss = 7;
	ret = getsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE, &arr, &ss);
	if(ret==0)
	{
		printf("SO_BINDTODEVICE: %s\n", arr);
	}
	else
	{
		if(errno==EBADF)
            printf("The argument sockfd is not a valid file descriptor.\n");
		else if(errno==EFAULT)
		    printf("The address pointed to by optval is not in a valid part of.the process address space.  For getsockopt(), this error may also be returned if optlen is not in a valid part of the process address space.\n");
		else if(errno==EINVAL)
		    printf("optlen invalid in setsockopt().  In some cases this error.can also occur for an invalid value in optval (e.g., for the IP_ADD_MEMBERSHIP option described in ip(7)).\n");
		else if(errno==ENOPROTOOPT)
		    printf("The option is unknown at the level indicated.\n");
		else if(errno==ENOTSOCK)
		    printf("The file descriptor sockfd does not refer to a socket.\n");
	}
}