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/* vport.c
Find a port in the V2 configuration files.
Copyright (C) 1992, 1993 Ian Lance Taylor
This file is part of the Taylor UUCP uuconf library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library 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.
The author of the program may be contacted at ian@airs.com or
c/o Cygnus Support, 48 Grove Street, Somerville, MA 02144.
*/
#include "uucnfi.h"
#if USE_RCS_ID
const char _uuconf_vport_rcsid[] = "$Id: vport.c,v 1.9 1995/06/21 19:25:19 ian Rel $";
#endif
#include <errno.h>
#include <ctype.h>
/* Find a port in the V2 configuration files by name, baud rate, and
special purpose function. */
int
uuconf_v2_find_port (pglobal, zname, ibaud, ihighbaud, pifn, pinfo, qport)
pointer pglobal;
const char *zname;
long ibaud;
long ihighbaud;
int (*pifn) P((struct uuconf_port *, pointer));
pointer pinfo;
struct uuconf_port *qport;
{
struct sglobal *qglobal = (struct sglobal *) pglobal;
FILE *e;
char *zline;
size_t cline;
char **pzsplit;
size_t csplit;
int iret;
int cchars;
e = fopen (qglobal->qprocess->zv2devices, "r");
if (e == NULL)
{
if (FNO_SUCH_FILE ())
return UUCONF_NOT_FOUND;
qglobal->ierrno = errno;
qglobal->zfilename = qglobal->qprocess->zv2devices;
return (UUCONF_FOPEN_FAILED
| UUCONF_ERROR_ERRNO
| UUCONF_ERROR_FILENAME);
}
zline = NULL;
cline = 0;
pzsplit = NULL;
csplit = 0;
iret = UUCONF_NOT_FOUND;
qglobal->ilineno = 0;
while ((cchars = getline (&zline, &cline, e)) > 0)
{
int ctoks;
char *zend;
long ilow, ihigh;
pointer pblock;
++qglobal->ilineno;
iret = UUCONF_NOT_FOUND;
--cchars;
if (zline[cchars] == '\n')
zline[cchars] = '\0';
zline[strcspn (zline, "#")] = '\0';
ctoks = _uuconf_istrsplit (zline, '\0', &pzsplit, &csplit);
if (ctoks < 0)
{
qglobal->ierrno = errno;
iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
break;
}
/* An entry in L-devices is
type device dial-device baud dialer
The type (normally "ACU") is treated as the name. */
/* If there aren't enough entries, ignore the line; this
should probably do something more useful. */
if (ctoks < 4)
continue;
/* Make sure the name matches any argument. */
if (zname != NULL
&& strcmp (pzsplit[0], zname) != 0)
continue;
/* Get the baud rate. */
ilow = strtol (pzsplit[3], &zend, 10);
if (*zend == '-')
ihigh = strtol (zend + 1, (char **) NULL, 10);
else
ihigh = ilow;
/* Make sure the baud rate matches any argument. */
if (ibaud != 0
&& ilow != 0
&& (ilow > ibaud || ihigh < ibaud))
continue;
/* Now we must construct the port information, so that we can
pass it to pifn. The port type is determined by it's name,
unfortunately. The name "DIR" is used for a direct port, and
anything else for a modem port. */
pblock = NULL;
_uuconf_uclear_port (qport);
qport->uuconf_zname = pzsplit[0];
if (strcmp (pzsplit[0], "DIR") == 0)
{
qport->uuconf_ttype = UUCONF_PORTTYPE_DIRECT;
qport->uuconf_u.uuconf_sdirect.uuconf_zdevice = pzsplit[1];
qport->uuconf_u.uuconf_sdirect.uuconf_ibaud = ilow;
qport->uuconf_u.uuconf_sdirect.uuconf_fcarrier = FALSE;
qport->uuconf_u.uuconf_sdirect.uuconf_fhardflow = TRUE;
}
else
{
qport->uuconf_ttype = UUCONF_PORTTYPE_MODEM;
qport->uuconf_u.uuconf_smodem.uuconf_zdevice = pzsplit[1];
if (strcmp (pzsplit[2], "-") != 0)
qport->uuconf_u.uuconf_smodem.uuconf_zdial_device = pzsplit[2];
else
qport->uuconf_u.uuconf_smodem.uuconf_zdial_device = NULL;
if (ilow == ihigh)
{
qport->uuconf_u.uuconf_smodem.uuconf_ibaud = ilow;
qport->uuconf_u.uuconf_smodem.uuconf_ilowbaud = 0L;
qport->uuconf_u.uuconf_smodem.uuconf_ihighbaud = 0L;
}
else
{
qport->uuconf_u.uuconf_smodem.uuconf_ibaud = 0L;
qport->uuconf_u.uuconf_smodem.uuconf_ilowbaud = ilow;
qport->uuconf_u.uuconf_smodem.uuconf_ihighbaud = ihigh;
}
qport->uuconf_u.uuconf_smodem.uuconf_fcarrier = TRUE;
qport->uuconf_u.uuconf_smodem.uuconf_fhardflow = TRUE;
if (ctoks < 5)
qport->uuconf_u.uuconf_smodem.uuconf_pzdialer = NULL;
else
{
size_t c;
char **pzd;
/* We support dialer/token pairs, although normal V2
doesn't. */
pblock = uuconf_malloc_block ();
if (pblock == NULL)
{
qglobal->ierrno = errno;
iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
break;
}
c = (ctoks - 4) * sizeof (char *);
pzd = (char **) uuconf_malloc (pblock, c + sizeof (char *));
if (pzd == NULL)
{
qglobal->ierrno = errno;
uuconf_free_block (pblock);
iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
break;
}
memcpy ((pointer) pzd, (pointer) (pzsplit + 4), c);
pzd[ctoks - 4] = NULL;
qport->uuconf_u.uuconf_smodem.uuconf_pzdialer = pzd;
}
qport->uuconf_u.uuconf_smodem.uuconf_qdialer = NULL;
}
if (pifn != NULL)
{
iret = (*pifn) (qport, pinfo);
if (iret != UUCONF_SUCCESS)
{
if (pblock != NULL)
uuconf_free_block (pblock);
if (iret != UUCONF_NOT_FOUND)
break;
continue;
}
}
/* This is the port we want. */
if (pblock == NULL)
{
pblock = uuconf_malloc_block ();
if (pblock == NULL)
{
qglobal->ierrno = errno;
iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
break;
}
}
if (uuconf_add_block (pblock, zline) != 0)
{
qglobal->ierrno = errno;
uuconf_free_block (pblock);
iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
break;
}
zline = NULL;
qport->uuconf_palloc = pblock;
break;
}
(void) fclose (e);
if (zline != NULL)
free ((pointer) zline);
if (pzsplit != NULL)
free ((pointer) pzsplit);
if (iret != UUCONF_SUCCESS && iret != UUCONF_NOT_FOUND)
{
qglobal->zfilename = qglobal->qprocess->zv2devices;
iret |= UUCONF_ERROR_FILENAME | UUCONF_ERROR_LINENO;
}
return iret;
}
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