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/*
open.cc from librms
Copyright (C) 1999-2001 Patrick Caulfield patrick@tykepenguin.cix.co.uk
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <sys/types.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <errno.h>
#include <netdnet/dn.h>
#include <netdnet/dnetdb.h>
#include "connection.h"
#include "protocol.h"
#include "logging.h"
#include "rms.h"
#include "rmsp.h"
static char *open_error = NULL;
static void build_access_message(dap_access_message *acc, struct FAB *fab)
{
if (fab->fab$b_fac) acc->set_fac(fab->fab$b_fac);
if (fab->fab$b_shr) acc->set_shr(fab->fab$b_shr);
}
static void build_attrib_message(dap_attrib_message *att, struct FAB *fab)
{
if (fab->fab$b_rfm) att->set_rfm((int)fab->fab$b_rfm);
if (fab->fab$b_rat) att->set_rat((int)fab->fab$b_rat);
//att->set_fop((int)fab->fab$l_fop);
}
RMSHANDLE rms_open(char *name, int mode, struct FAB *fab)
{
struct accessdata_dn accessdata;
char fname[256];
char user[256];
char node[256];
char password[256];
int verbose = 0;
if (getenv("LIBRMS_VERBOSE"))
{
verbose = atoi(getenv("LIBRMS_VERBOSE"));
if (!verbose) verbose = 1;
init_logging("librms", 'e', false);
}
dap_connection *conn = new dap_connection(verbose);
errno = ENOENT;
memset(&accessdata, 0, sizeof(accessdata));
if (!conn->parse(name, accessdata, node, fname))
{
open_error = conn->get_error();
delete conn;
return NULL;
}
strcpy(user, (char *)accessdata.acc_user);
strcpy(password, (char *)accessdata.acc_pass);
if (!conn->connect(node, user, password, dap_connection::FAL_OBJECT))
{
open_error = conn->get_error();
delete conn;
return NULL;
}
if (!conn->exchange_config())
{
open_error = conn->get_error();
delete conn;
return NULL;
}
rms_conn *rc = new rms_conn(conn);
// VMS needs an attrib message so give it one.
dap_attrib_message att;
att.set_rfm(dap_attrib_message::FB$VAR);
if (fab) build_attrib_message(&att, fab);
conn->set_blocked(true);
if (!att.write(*conn))
{
delete conn;
return NULL;
}
dap_alloc_message all;
if (!all.write(*conn))
{
delete conn;
return NULL;
}
conn->set_blocked(false);
// Set up the access method
dap_access_message acc;
acc.set_accfunc(dap_access_message::OPEN);
acc.set_display(dap_access_message::DISPLAY_MAIN_MASK);
if (mode & O_CREAT) acc.set_accfunc(dap_access_message::CREATE);
if (mode & O_RDWR || mode & O_CREAT)
acc.set_fac(1<<dap_access_message::FB$PUT |
1<<dap_access_message::FB$GET |
1<<dap_access_message::FB$UPD |
1<<dap_access_message::FB$DEL);
if (mode & O_WRONLY)
acc.set_fac(1<<dap_access_message::FB$PUT |
1<<dap_access_message::FB$UPD |
1<<dap_access_message::FB$DEL);
if (fab) build_access_message(&acc, fab);
acc.set_filespec(fname);
if (!acc.write(*conn))
{
delete conn;
return NULL;
}
// Get reply to OPEN
dap_message *m;
int r = rms_getreply(rc, 1, fab, &m);
if (r < 0)
{
if (r == -2) delete m;
open_error = rms_lasterror(rc);
delete conn;
delete rc;
return NULL;
}
// Connect RAB
dap_control_message ctl;
ctl.set_ctlfunc(dap_control_message::CONNECT);
ctl.write(*conn);
// Get reply to CONNECT
r = rms_getreply(rc, 1, fab, &m);
if (r < 0)
{
if (r == -2) delete m;
open_error = rms_lasterror(rc);
delete conn;
delete rc;
return NULL;
}
// Return new struct
return (RMSHANDLE)rc;
}
// Open with text arguments
RMSHANDLE rms_t_open(char *name, int mode, char *options, ...)
{
struct FAB fab;
struct RAB rab;
va_list ap;
va_start(ap, options);
if (!parse_options(NULL, options, &fab, &rab, ap)) return NULL;
return rms_open(name, mode, &fab);
}
char *rms_openerror()
{
return open_error;
}
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