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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;
- }
-