git.m6w6.name Git - m6w6/libmemcached/blob - lib/memcached_connect.c

   1 #include <memcached.h>
   2
   3 memcached_return memcached_connect(memcached_st *ptr)
   4 {
   5   int rc;
   6   struct sockaddr_in localAddr, servAddr;
   7   struct hostent *h;
   8   char *server_name= "localhost";
   9
  10   if (ptr->connected)
  11     return MEMCACHED_SUCCESS;
  12
  13
  14   if ((h= gethostbyname(server_name)) == NULL)
  15   {
  16     fprintf(stderr, "unknown host '%s'\n", server_name);
  17     return MEMCACHED_HOST_LOCKUP_FAILURE;
  18   }
  19
  20   servAddr.sin_family= h->h_addrtype;
  21   memcpy((char *) &servAddr.sin_addr.s_addr, h->h_addr_list[0], h->h_length);
  22   servAddr.sin_port = htons(MEMCACHED_DEFAULT_PORT);
  23
  24   /* Create the socket */
  25   if ((ptr->fd= socket(AF_INET, SOCK_STREAM, 0)) < 0)
  26   {
  27     fprintf(stderr, "cannot open socket");
  28     return MEMCACHED_CONNECTION_SOCKET_CREATE_FAILURE;
  29   }
  30
  31
  32   /* bind any port number */
  33   localAddr.sin_family = AF_INET;
  34   localAddr.sin_addr.s_addr = htonl(INADDR_ANY);
  35   localAddr.sin_port = htons(0);
  36
  37   if (bind(ptr->fd, (struct sockaddr *) &localAddr, sizeof(localAddr)) < 0)
  38   {
  39     fprintf(stderr, "cannot bind port TCP %u\n", MEMCACHED_DEFAULT_PORT);
  40     return(MEMCACHED_CONNECTION_BIND_FAILURE);
  41   }
  42
  43   /* connect to server */
  44   if (connect(ptr->fd, (struct sockaddr *) &servAddr, sizeof(servAddr)) < 0)
  45   {
  46     fprintf(stderr, "cannot connect to host '%s'\n", server_name);
  47     return MEMCACHED_HOST_LOCKUP_FAILURE;
  48   }
  49
  50   ptr->connected= 1;
  51
  52   return MEMCACHED_SUCCESS;
  53 }