Subversion Repositories planix.SVN

/* posix */
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <sys/stat.h>
#include <signal.h>

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

/* plan 9 */
#include "lib.h"
#include "sys9.h"

#include "priv.h"

int
bind(int fd, void *a, int alen)
{
        int n, len, cfd;
        Rock *r;
        char msg[128];
        struct sockaddr_in *lip;

        /* assign the address */
        r = _sock_findrock(fd, 0);
        if(r == 0){
                errno = ENOTSOCK;
                return -1;
        }
        if(alen > sizeof(r->addr)){
                errno = ENAMETOOLONG;
                return -1;
        }
        memmove(&r->addr, a, alen);

        /* the rest is IP sepecific */
        if (r->domain != PF_INET)
                return 0;

        cfd = open(r->ctl, O_RDWR);
        if(cfd < 0){
                errno = EBADF;
                return -1;
        }
        lip = (struct sockaddr_in*)&r->addr;
        if(lip->sin_port > 0)
                snprintf(msg, sizeof msg, "bind %d", ntohs(lip->sin_port));
        else
                strcpy(msg, "bind *");
        n = write(cfd, msg, strlen(msg));
        if(n < 0){
                errno = EOPNOTSUPP;     /* Improve error reporting!!! */
                close(cfd);
                return -1;
        }
        close(cfd);

        if(lip->sin_port <= 0)
                _sock_ingetaddr(r, lip, &len, "local");

        return 0;
}