accept() command of networking 3rd arg problem

[belikewater]

Hello All,
I have started to study linux api networking,using a code for a server
I tryed to run it on linux ubuntu, kde/c++:


struct sockaddr_in serv_addr, cli_addr;
sockfd = socket(AF_INET,SOCK_STREAM,0);
clilen = sizeof(cli_addr);
newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen);

has a problem at 3rd argumnet custing:

tryed to follow the Beej's Guide to Network Programming
and wrote:


clilen = sizeof(struct sockaddr_in);

newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen);
man pages also doesn't help
so how can i solve the problem?:confused:

[meatpan]

Hello All,

struct sockaddr_in serv_addr, cli_addr;
sockfd = socket(AF_INET,SOCK_STREAM,0);
clilen = sizeof(cli_addr);
newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, &clilen);



Where is clilen declared? Is it of type 'socklen_t *'? Also, can you post the compiler error output?

[dwhitney67]

ACCEPT(2) Linux Programmer’s Manual ACCEPT(2)

NAME
accept - accept a connection on a socket

SYNOPSIS
#include <sys/types.h> /* See NOTES */
#include <sys/socket.h>

int accept(int sockfd, struct sockaddr *addr, socklen_t *addrlen);
...



Usage:


int sockfd = -1;
int connection_fd = -1;
struct sockaddr addr;
socklen_t addrlen = 0;

sockfd = socket( some_Domain, some_Type, some_Protocol );
connection_fd = accept( sockfd, &addr, &addrlen );

If you are not interested in the client address information, you can call accept() like this:


connection_fd = accept( sockfd, 0, 0 );