isn't this the intended behavior?
lotte% 8.out 777
NON BLOCK Succeeded
Here is the message: hola
from a different window:
lotte% telnet tcp!localhost!777
connected to tcp!localhost!777 on /net/tcp/20
hola
I got your messagelotte%
On Mon, Jan 10, 2011 at 10:31 PM, Fernan Bolando
<fernanbola...@mailc.net> wrote:
> Hi all
>
> I am testing the non-block socket of ape/plan9 the code below seems to
> succeed in making a non-block sockets on unix, but not in plan9/ape it
> still blocks with no error from fcntl.
> Is this intended?
>
>
>
> /* A simple server in the internet domain using TCP
> The port number is passed as an argument */
> #include <stdio.h>
> #include <sys/types.h>
> #include <sys/socket.h>
> #include <netinet/in.h>
> #include <fcntl.h>
>
> void error(char *msg)
> {
> perror(msg);
> exit(1);
> }
>
> int main(int argc, char *argv[])
> {
> int sockfd, newsockfd, portno, clilen;
> char buffer[256];
> struct sockaddr_in serv_addr, cli_addr;
> int n, sta, fl;
> if (argc < 2) {
> fprintf(stderr,"ERROR, no port provided\n");
> exit(1);
> }
> sockfd = socket(AF_INET, SOCK_STREAM, 0);
> if (sockfd < 0)
> error("ERROR opening socket");
>
> printf("NON BLOCK Succeeded\n");
> bzero((char *) &serv_addr, sizeof(serv_addr));
> portno = atoi(argv[1]);
> serv_addr.sin_family = AF_INET;
> serv_addr.sin_addr.s_addr = INADDR_ANY;
> serv_addr.sin_port = htons(portno);
> if (bind(sockfd, (struct sockaddr *) &serv_addr,
> sizeof(serv_addr)) < 0)
> error("ERROR on binding");
> fl = fcntl (sockfd, F_GETFL,0);
> sta = fcntl (sockfd, F_SETFL, fl | O_NONBLOCK); /* set
> nonblock */
> if (sta == -1)
> {
> printf(" NON_BLOCK FAILED\n");
> return 1;
> }
> listen(sockfd,5);
> clilen = sizeof(cli_addr);
> newsockfd = accept(sockfd,
> (struct sockaddr *) &cli_addr,
> &clilen);
> if (newsockfd < 0)
> error("ERROR on accept");
> bzero(buffer,256);
> n = read(newsockfd,buffer,255);
> if (n < 0) error("ERROR reading from socket");
> printf("Here is the message: %s\n",buffer);
> n = write(newsockfd,"I got your message",18);
> if (n < 0) error("ERROR writing to socket");
> return 0;
> }
>
>
--
Federico G. Benavento
