SO_NOSIGPIPE

                                  Changelog

Daniel (11 October 2004)

- libcurl now uses SO_NOSIGPIPE for systems that support it (Mac OS X 10.2 or

  later is one) to inhibit the SIGPIPE signal when writing to a socket while

  the peer dies. The same effect is provide by the MSG_NOSIGNAL parameter to

  send() on other systems. Alan Pinstein verified the fix.

Gisle (6 October 2004)

- For USE_LIBIDN builds: Added Top-Level-Domain (TLD) check of host-name

  used in fix_hostname(). Checks if characters in 'host->name' (indirectly

#endif

}

#ifdef SO_NOSIGPIPE

/* The preferred method on Mac OS X (10.2 and later) to prevent SIGPIPEs when

   sending data to a dead peer (instead of relying on the 4th argument to send

   being MSG_NOSIGNAL). Possibly also existing and in use on other BSD

   systems? */

static void nosigpipe(struct connectdata *conn,

                      curl_socket_t sockfd)

{

  struct SessionHandle *data= conn->data;

  int onoff = 1;

  if(setsockopt(sockfd, SOL_SOCKET, SO_NOSIGPIPE, (void *)&onoff,

                sizeof(onoff)) < 0)

    infof(data, "Could not set SO_NOSIGPIPE: %s\n",

          Curl_strerror(conn, Curl_ourerrno()));

}

#endif

/* singleipconnect() connects to the given IP only, and it may return without

   having connected if used from the multi interface. */

static curl_socket_t

  if(data->set.tcp_nodelay)

    tcpnodelay(conn, sockfd);

#ifdef SO_NOSIGPIPE

  nosigpipe(conn, sockfd);

#endif

  if(conn->data->set.device) {

    /* user selected to bind the outgoing socket to a specified "device"

       before doing connect */