+/*
+ * Copyright (c) 1995, the EUROPAGATE consortium (see below).
+ *
+ * The EUROPAGATE consortium members are:
+ *
+ * University College Dublin
+ * Danmarks Teknologiske Videnscenter
+ * An Chomhairle Leabharlanna
+ * Consejo Superior de Investigaciones Cientificas
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation, in whole or in part, for any purpose, is hereby granted,
+ * provided that:
+ *
+ * 1. This copyright and permission notice appear in all copies of the
+ * software and its documentation. Notices of copyright or attribution
+ * which appear at the beginning of any file must remain unchanged.
+ *
+ * 2. The names of EUROPAGATE or the project partners may not be used to
+ * endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * 3. Users of this software (implementors and gateway operators) agree to
+ * inform the EUROPAGATE consortium of their use of the software. This
+ * information will be used to evaluate the EUROPAGATE project and the
+ * software, and to plan further developments. The consortium may use
+ * the information in later publications.
+ *
+ * 4. Users of this software agree to make their best efforts, when
+ * documenting their use of the software, to acknowledge the EUROPAGATE
+ * consortium, and the role played by the software in their work.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ * IN NO EVENT SHALL THE EUROPAGATE CONSORTIUM OR ITS MEMBERS BE LIABLE
+ * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF
+ * ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+ * OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND
+ * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
/* Gateway kernel
* Europagate, 1995
*
* $Log: gips.c,v $
- * Revision 1.3 1995/04/20 15:12:46 adam
+ * Revision 1.8 1995/05/22 11:43:01 adam
+ * Minor changes on dtbsun - include of errno.h.
+ *
+ * Revision 1.7 1995/05/22 09:03:41 adam
+ * New argument, block, to cs_open.
+ *
+ * Revision 1.6 1995/05/16 09:40:53 adam
+ * LICENSE.
+ *
+ * Revision 1.5 1995/05/01 16:27:29 adam
+ * Various improvements. Close-on-exec and close on failure on either
+ * read or write FIFO.
+ *
+ * Revision 1.4 1995/04/21 16:38:08 adam
+ * Added more debugging logs.
+ *
+ * Revision 1.3 1995/04/20 15:12:46 adam
* Minor hacks really.
*
* Revision 1.2 1995/04/19 16:02:06 adam
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
+#include <errno.h>
#include <gw-log.h>
#include <gip.h>
+static char *module = "gips";
+
GIP gips_initialize (const char *name)
{
return gip_initialize (name);
return gip_destroy (gip);
}
-int gips_open (GIP gip, const char *client)
+int gips_open (GIP gip, const char *client, int block)
{
- gw_log (GW_LOG_DEBUG, "gips", "open writeonly of %s", client);
- gip->wfd = open (client, O_WRONLY);
- gw_log (GW_LOG_DEBUG, "gips", "open readonly of %s", gip->name);
- gip->rfd = open (gip->name, O_RDONLY);
+ do
+ {
+ gw_log (GW_LOG_DEBUG, module, "open readonly of %s", gip->name);
+ gip->rfd = open (gip->name, block ? O_RDONLY : (O_RDONLY|O_NONBLOCK));
+ gw_log (GW_LOG_DEBUG, module, "got rfd %d", gip->rfd);
+ } while (gip->rfd == -1 && errno == EINTR);
+ do
+ {
+ gw_log (GW_LOG_DEBUG, module, "open writeonly of %s", client);
+ gip->wfd = open (client, block ? O_WRONLY : (O_WRONLY|O_NONBLOCK));
+ gw_log (GW_LOG_DEBUG, module, "got wfd %d", gip->wfd);
+ } while (gip->wfd == -1 && errno == EINTR);
if (gip->rfd == -1)
+ {
+ gw_log (GW_LOG_DEBUG|GW_LOG_ERRNO, module,
+ "cannot open %s", gip->name);
+ if (gip->wfd != -1)
+ {
+ close (gip->wfd);
+ gip->wfd = -1;
+ }
+ else
+ gw_log (GW_LOG_DEBUG|GW_LOG_ERRNO, module,
+ "cannot open %s", client);
return -1;
+ }
if (gip->wfd == -1)
+ {
+ gw_log (GW_LOG_DEBUG|GW_LOG_ERRNO, module,
+ "cannot open %s", client);
+ close (gip->rfd);
+ gip->rfd = -1;
return -1;
+ }
+ fcntl (gip->wfd, F_SETFL, 0);
+ fcntl (gip->rfd, F_SETFL, 0);
+ fcntl (gip->wfd, F_SETFD, FD_CLOEXEC);
+ fcntl (gip->rfd, F_SETFD, FD_CLOEXEC);
return 0;
}