Thread: while non ended

Hi,

I a my server program I have in the main this code:

Code:

int main(int argc, char *argv[])
{
  char ctrl_terminator[3];
  char terminator[3]={'.','.','\n'};
  char msg[BUFLEN];
/* Other variables and the header of main */
 
while (ctrl_terminator != terminator)
{
   i=0;
   char_recv = recv(newsocketfd, &c, 1, 0);
   while (c !='\n')
   {
      msg[i++]=c;
      char_recv = recv(newsocketfd, &c, 1, 0); 
    } /* End while (c !='\n') */
    msg[i]='\0';
    printf("This message is arrived: %s\n",msg);
    if (i > 2)
       {
         strncpy(ctrl_terminator, &msg[i-3], 2);
         ctrl_terminator[3] = '\0';
        } /* End if */
  } /* while (ctrl_terminator != terminator) */
 
/* The rest of Main */

The program work fine; when the telnet establish a connection with server, I can send to server many msg. But if I close my last message with the sequence "..", the while (ctrl_terminator != terminator) is not verified and I don't can exit from loop.

Sure, I mistake something; but I don't know how to resolve the problem .

Can You help me ?

Best Regards
Nick

In your while condition, you are actually comparing two pointer values against each other, something which can't ever be true (in this situation). Have a look at the function strpbrk which should do exactly what you need:

Code:

  char str[] = "This is a sample string";
  char key[] = "aeiou";
  char * pch;
  while ((pch = strpbrk (str, key)) != NULL)
  {

  }