Using Lwip with fdopen

[Mhamad H. <mhh...@gm...>]

Hi,
I built small test server application using lwip stack  to work like echo
server .
i tried to associate the socket with a stream by using fdopen but it failed
.
when i using the mode "r" or "r+" it give invalid parameter error,
in the same time when i try to write on the file descriptor returned by
lwip_accept  it is write to the client .
the part of code is :
while (1)
{
magsock = lwip_accept (socket_v , 0, 0 );
if (magsock ==-1)
    {
         perror ("lwip_accept");
    }
else
    {
        // this is work
        char *buf= "hi";
        if(  write (,magsock,buf , sizeof(buf) )<0)
           {
                perror ("write");
            }
        // this is not work
        FILE *file;
        file= fdopn(magsock ,"r");
        if (file==NULL)
           {
                perror ("fdopn");

           }
        int c ;
        while(c=fgetc(file))
               printf(c);
        fclose(file);
    }
}
any clue or suggestion ?

best,
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