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For this question, this code isn't from a program, i am just assuming the other parts are there, i just want to get the loop right. So just assume the rest is there. The question says just to write...

for a question like this

Assume you have a server with two clients and two child processes. The server retrieves data from the
children through a pipe (one each) and writes data to the clients...

but in your code, your forking 10 times, but how do you refer to ones u made before,

if I do this:
pid1=fork(); //first child has pid=0
if pid1>0 {
pid2=fork(); // second child has pid=0...

so if a server creates 2 childs, how does it tell, which child is which if both have a pid of 0?

---------- Post updated at 03:13 PM ---------- Previous update was at 03:12 PM ----------

in a...

If a code forks 2 childs, what can the values be for the process id's of each of the child? I child pid is supposed to be 0, but what if you fork 2 of them?

If i have a macro called NUM which is "8" (string) for example
How do I make it into say "7", well i just want to lower it by one, also there will never be the case where its "0" and i have to...

wouldnt this work, since strings are pointers?
buf=buf+5;

and whats the difference between declaring a string like
char *buf;
and
char buf[10];

arent they both pointers? But in some cases...

i got it now, it had to do with me mallocing in a function to copy a string, seemed that solved the problem.

if i have a child process going in a for loop doing a sleep command, there is no guarantee that it will die before the parent dies, but i know that eventually it will die, is it still safe to do...

can someone provide an example, where if the parent process quits for any reason, then the child process will also close?

If i have a linked list in C, how do I edit a node in it? Without ruining the whole list, by this i mean end up making it null or circular... (since it has to be linear and has to stop...

can someone provide an example of a struct linked list, where it has strings as its values, and then how do I check if a specific string (say called buffer) exists in the list of structs?

i dont...

i have a string and i want the first 5 chars to be removed
this is what i have

void shift(char *string) {
int i;
for(i=0;i<5;i++) {
while(1) {
*string =...

i have a linked list set up like

typedef struct client_list {
char *client_name;
int client_socket_fd;
struct client_list *next;
} client;

client *client_list=NULL;
before...

hmm, i got this to work the first time i use the function, the second time always returns 0 for some reason

int already_there(client *client_list, char *username) {
if (client_list == NULL)...

I think I got it now.



---------- Post updated at 08:30 PM ---------- Previous update was at 06:34 PM ----------

i have another issue, then the client is running, and i press ctrl+c, it...

so this should be able to tell me if it wrote properly?

void send_message(int client_socket_fd, char *message, int length) {
size_t bytes = write(client_socket_fd, message, length);
if...

i just changed all of them to strlen, and the problem still occurs

---------- Post updated at 02:51 PM ---------- Previous update was at 02:34 PM ----------

how is read supposed to work, does...

i dont understand, the only times i use that str_len is when the strings have no \n inside...



---------- Post updated at 02:21 PM ---------- Previous update was at 02:15 PM ----------

when...

since my data can have >0 \n should i just change it to


int pos=0;
bzero(buffer,MAXDATASIZE); // Stop once we have an entire single line
while((buffer[pos] != '\0') && (pos < MAXDATASIZE))...

your code is only reading one line (as in stops at a \n), but my data that's being sent, can include more than 0 \n's, could that be causing the problem?
but then again, sometimes the problem...

but how?
if you read it waits until more data comes in, so if you put a while loop, it will just go into an infinite loop?
so really if you read once, doesnt it read everything from the socket?, i...

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

#ifndef PORT...

server

#include "header.h"
int main(int argc, char **argv) {
char buffer[MAXDATASIZE];
bzero(buffer, sizeof(buffer));
client *client_list=NULL; item *item_list=NULL;
...

nvm i fixed it.

---------- Post updated at 09:09 PM ---------- Previous update was at 07:46 PM ----------

how does the select function code work? will it achieve a better result than what you...