compilation error

Im not worried about the warnings or notes. What I would like to know is what would cause this kind of fatal error? Line number 48 it says.

Code:

ubuntu@ubuntu:~/Documents$ gcc server.c -o server
server.c: In function ‘main’:
server.c:38: warning: passing argument 3 of ‘accept’ makes pointer from integer without a cast
/usr/include/sys/socket.h:214: note: expected ‘socklen_t * __restrict__’ but argument is of type ‘unsigned int’
server.c: At top level:
server.c:48: fatal error: error closing /tmp/ccE99bS8.s: No space left on device
compilation terminated.
ubuntu@ubuntu:~/Documents$

I have been coding a basic server twice a day for 2 weeks and have never had a problem till now for some odd reason. but heres the code just in case

Code:

/*A simple TCP server for linux*/
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>

int main(int argc, char *argv[]) {
int sockfd, newsockfd, portno;
char buffer[256]; 
struct sockaddr_in serv_addr, cli_addr;

sockfd = socket(AF_INET, SOCK_STREAM, 0);
if(sockfd < 0) fprintf(stderr, "Error creating socket.");

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) 
fprintf(stderr, "Error binding to socket.");

listen(sockfd, 5); 

newsockfd = accept(sockfd, (struct sockaddr *) &cli_addr, sizeof(cli_addr));
if(newsockfd < 0) fprintf(stderr, "Error accepting new connection.");

for( ; ; ) {

}

close(newsockfd);
close(sockfd);
return 0;
}

Argument 3 of accept() should be a socklen_t * you are trying to pass an integer.

Jim

@Jimblumberg, that fixed it. I didn't think that would cause a fatal error. Thanks

Don't forget to fix these warnings:

main.c||In function ‘main’:|
main.c|18|warning: implicit declaration of function ‘bzero’
main.c|19|warning: implicit declaration of function ‘atoi’|

Jim

> server.c:48: fatal error: error closing /tmp/ccE99bS8.s: No space left on device
This means the compiler aborted because your /tmp is FULL

Yeah I noticed that yesterday Salem. I looked in my tmp folder and everything I was saving in my documents, was also saving in my tmp folder. Any insight?

All sorts of things (say your editor) save all sorts of things (say a backup file) in /tmp

Mostly, they get deleted when a program exits (though they might be left behind if the program crashes).
Mostly, /tmp is cleared when you reboot.

If you do
ls -l /tmp
and see things older than your last reboot, you might want to look into the second part.

Or it's a sign that your disk itself is getting full, and you need to start cleaning up some junk.

Code:

$ df -BM
Filesystem           1M-blocks      Used Available Use% Mounted on
/dev/sdb5                5632M     4927M      419M  93% /

Do you see a line just for /tmp?

Salem, I guess because I wasn't using a cast it was crashing and slowly filling up my tmp dir. Maybe? I have compiled it before with no cast.
There is def things older than my last reboot tho!

This is the result for the ls -l /tmp:

Code:

ubuntu@ubuntu:~/Documents$ ls -l /tmp
total 20
srwxr-xr-x 1 ubuntu ubuntu     0 2011-06-23 03:10 gedit.ubuntu.898307530
drwx------ 2 ubuntu ubuntu   100 2011-06-23 02:27 keyring-V2f3gh
drwx------ 2 ubuntu ubuntu   680 2011-06-24 05:48 orbit-ubuntu
drwx------ 2 ubuntu ubuntu    80 2011-06-23 00:31 pulse-HOZ09YZU5RId
drwx------ 2 root   root      40 2011-06-23 02:28 pulse-PKdhtXMmr18n
-rw-r--r-- 1 ubuntu ubuntu 16844 2011-06-23 02:28 s-c-screenshoth7DGCj
drwx------ 2 ubuntu ubuntu    60 2011-06-23 02:27 ssh-xeFzaU4974
drwx------ 2 ubuntu ubuntu    40 2011-06-23 02:27 virtual-ubuntu.AeQGWP
ubuntu@ubuntu:~/Documents$

Not sure as to what all this is, but hopefully you will!
Btw, my HDD is trashed, so I run a live cd with no HD @ all.

> Btw, my HDD is trashed, so I run a live cd with no HD @ all.
WHAT?!!

So where do you save your work so it survives a reboot.
Any writeable file system you have at this point is being faked by using RAM. So yeah, it's going to be in short supply.

Or was this the "clue" in your original message?

I have been coding a basic server twice a day for 2 weeks

I thought this was practice, not necessity.

If your machine will boot from USB, then a 2GB thumb drive will be a lot more useful to you than a CD. At least you'll get some persistent storage.

This is one of those times where the "Remote Slap Protocol" would have come in handy!

Yeah, it has a few bad sectors. It won't let me install an OS. But Any work I do, I save in my documents and send a copy to my email. Because I have to reboot it often. It is practice tho. And I have an 8GB thumb drive...I guess I'll start using that now! And I dont know what a remote slap protocol is but I def deserve a slap lol

Originally Posted by Salem

> Btw, my HDD is trashed, so I run a live cd with no HD @ all.
WHAT?!!

So where do you save your work so it survives a reboot.
Any writeable file system you have at this point is being faked by using RAM. So yeah, it's going to be in short supply.

Or was this the "clue" in your original message?

I thought this was practice, not necessity.

If your machine will boot from USB, then a 2GB thumb drive will be a lot more useful to you than a CD. At least you'll get some persistent storage.

This is one of those times where the "Remote Slap Protocol" would have come in handy!

Most live distros I've seen use a union mount to store persistent changes to the filesystem on for example an external USB drive. Maybe that is what the OP is using.

Originally Posted by Salem

This is one of those times where the "Remote Slap Protocol" would have come in handy!

I could not find that protocol; is it your on joke protocol?

April Fools' Day RFC - Wikipedia, the free encyclopedia

But, I learned something new that they added QoS to IP over Avian Carriers protocol.
It is so hard to keep up with the latest protocols

Tim S.

I give you guys much respect. I am still trying to figure this out.