Help with linked list in C Post: 302509800

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Top Forums Programming Help with linked list in C Post 302509800 by omega666 on Thursday 31st of March 2011 06:23:22 PM

03-31-2011

Registered User

ok now i changed that function to

Code:

int already_there(client *current, char *username) {
    while(current) {
        if (strcmp(current->client_name, username)==0) return(1);
        if (current->next==NULL) break;
        else current = current->next;
    }
    return(0);
}

and am using

Code:

    client *current=NULL;
    current = add_client("tttttttt", current, client_socket_fd);
    current = add_client("ttttttttt", current, client_socket_fd);
    printf("HERE\n");
    write(1,current->client_name,9);
    printf("\n");
    write(1,current->next->client_name,8);
    printf("\nHERE\n");

and

Code:

client *add_client(char *username, client *client_list, int client_socket_fd) {
    client *new_client = (client *)malloc(sizeof(client)); 
    new_client->client_name = username;
    new_client->client_socket_fd = client_socket_fd;
    new_client->next = client_list;
    return new_client;
}

first i add the two clients, then check for some other name if its there

this above code works now

but if i change
if (current->next==NULL) break;
else current = current->next;
to
current = current->next;

from the first code i put here, then it messes up, but why is changing that making a difference?

---------- Post updated at 06:23 PM ---------- Previous update was at 06:18 PM ----------

also a quick question, if i run the code, and get no error, then right away run the code again
and get this error
ERROR on binding: Address already in use
does that mean that theres something wrong with my code, or its just something i cant avoid?

if i get that error, i have to wait like 7 seconds before it works again...

omega666

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