add sequence number

[davidx]

Hello , im sending a message "teste" by udp socket, i would like to add a sequence number at teste like:

teste1
teste2
teste3
teste4 and so on....
i got this peace of code:

#define HELLO_PORT 12345
#define HELLO_GROUP "192.168.0.1"
int main(int argc, char *argv[])
{
struct sockaddr_in addr;
int fd;
char *message = "teste";
if ((fd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
{
perror("socket");
exit(1);
}
/* set up destination address */
memset(&addr,0,sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = inet_addr(HELLO_GROUP);
addr.sin_port=htons(HELLO_PORT);
while (1)
{
if (sendto(fd, message, strlen(message), 0,(struct sockaddr *) &addr, sizeof(addr)) < 0)
{
perror("sendto");
exit(1);
}
sleep(2);
}
}

many thanks

[root4]

Add a loop counter, and concatenate that value to your string, using sprintf() for instance. What's disturbing you?

[davidx]

Add a loop counter, and concatenate that value to your string, using sprintf() for instance. What's disturbing you?

Im novice to c code , can you add code at code above?

[Click_here]

Im novice to c code , can you add code at code above?

People on this site are very reluctant to give out code - You have more chance if you look for the function sprintf, give it a go, and then post what you came up with if it doesn't work.

[Salem]

> Im novice to c code , can you add code at code above?
You're messing about with network code. You should be up to the task of creating a string with sprintf()

But then you're just another found some code merchant

What happens when you face the next trivial problem due to your lack of knowledge - will you be back on another forum asking for the next simple task.
Start learning some C.
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