List Linux sockets accessible by this user. (2)

#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <errno.h>
int main()
{
    for (int i = 0; i <= 256; i++)
    {
        errno = 0;
        int s = socket(i,0,0);
        if (s == -1) {
            if (errno == 97) {continue;}
            if (errno ==  1) {printf("socket(%02i) -> %03i: This user does not have access to this socket.\n",i,errno); continue;}
        }
        printf("socket(%02i) -> %03i: This user has access to this socket.\n",i,errno);
    }
}