Subversion Repositories planix.SVN

/* posix */
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>

/* socket extensions */
#include <sys/socket.h>
#include <netinet/in.h>
#include <sys/un.h>

int
rresvport(int *p)
{
        int fd;
        short i;
        struct  sockaddr_in in;
        static int next;

        fd = socket(PF_INET, SOCK_STREAM, 0);
        if(fd < 0)
                return -1;
        i = 600 + ((getpid()+next++)%(1024-600));
        memset(&in, 0, sizeof(in));
        in.sin_family = AF_INET;
        in.sin_port = htons(i);
printf("in.sin_port = %d\n", in.sin_port);
        if(bind(fd, &in, sizeof(in)) < 0){
                close(fd);
                return -1;
        }
        if(p)
                *p = i;
        return fd;
}