369 lines
9.7 KiB
C
369 lines
9.7 KiB
C
/* hport.c
|
||
Find a port in the HDB configuration files.
|
||
|
||
Copyright (C) 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
||
The author of the program may be contacted at ian@airs.com or
|
||
c/o Infinity Development Systems, P.O. Box 520, Waltham, MA 02254.
|
||
*/
|
||
|
||
#include "uucnfi.h"
|
||
|
||
#if USE_RCS_ID
|
||
const char _uuconf_hport_rcsid[] = "$Id: hport.c,v 1.1 1993/08/04 19:34:20 jtc Exp $";
|
||
#endif
|
||
|
||
#include <errno.h>
|
||
#include <ctype.h>
|
||
|
||
/* Find a port in the HDB configuration files by name, baud rate, and
|
||
special purpose function. */
|
||
|
||
int
|
||
uuconf_hdb_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;
|
||
char *zline;
|
||
size_t cline;
|
||
char **pzsplit;
|
||
size_t csplit;
|
||
int iret;
|
||
char **pz;
|
||
|
||
zline = NULL;
|
||
cline = 0;
|
||
pzsplit = NULL;
|
||
csplit = 0;
|
||
|
||
iret = UUCONF_NOT_FOUND;
|
||
|
||
for (pz = qglobal->qprocess->pzhdb_devices; *pz != NULL; pz++)
|
||
{
|
||
FILE *e;
|
||
int cchars;
|
||
|
||
qglobal->ilineno = 0;
|
||
|
||
e = fopen (*pz, "r");
|
||
if (e == NULL)
|
||
{
|
||
if (FNO_SUCH_FILE ())
|
||
continue;
|
||
qglobal->ierrno = errno;
|
||
iret = UUCONF_FOPEN_FAILED | UUCONF_ERROR_ERRNO;
|
||
break;
|
||
}
|
||
|
||
iret = UUCONF_NOT_FOUND;
|
||
|
||
while ((cchars = _uuconf_getline (qglobal, &zline, &cline, e)) > 0)
|
||
{
|
||
int ctoks;
|
||
char *z, *zprotos, *zport;
|
||
long ilow, ihigh;
|
||
pointer pblock;
|
||
|
||
++qglobal->ilineno;
|
||
|
||
iret = UUCONF_NOT_FOUND;
|
||
|
||
--cchars;
|
||
if (zline[cchars] == '\n')
|
||
zline[cchars] = '\0';
|
||
if (isspace (BUCHAR (zline[0])) || zline[0] == '#')
|
||
continue;
|
||
|
||
ctoks = _uuconf_istrsplit (zline, '\0', &pzsplit, &csplit);
|
||
if (ctoks < 0)
|
||
{
|
||
qglobal->ierrno = errno;
|
||
iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
|
||
break;
|
||
}
|
||
|
||
/* An entry in Devices is
|
||
|
||
type device dial-device baud dialer-token pairs
|
||
|
||
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;
|
||
|
||
/* There may be a comma separated list of protocols after
|
||
the name. */
|
||
zprotos = strchr (pzsplit[0], ',');
|
||
if (zprotos != NULL)
|
||
{
|
||
*zprotos = '\0';
|
||
++zprotos;
|
||
}
|
||
|
||
zport = pzsplit[0];
|
||
|
||
/* Get any modem class, and pick up the baud rate while
|
||
we're at it. The modem class will be appended to the
|
||
name, so we need to get it before we see if we've found
|
||
the port with the right name. */
|
||
z = pzsplit[3];
|
||
if (strcasecmp (z, "Any") == 0
|
||
|| strcmp (z, "-") == 0)
|
||
{
|
||
ilow = 0L;
|
||
ihigh = 0L;
|
||
}
|
||
else
|
||
{
|
||
char *zend;
|
||
|
||
while (*z != '\0' && ! isdigit (BUCHAR (*z)))
|
||
++z;
|
||
|
||
ilow = strtol (z, &zend, 10);
|
||
if (*zend == '-')
|
||
ihigh = strtol (zend + 1, (char **) NULL, 10);
|
||
else
|
||
ihigh = ilow;
|
||
|
||
if (z != pzsplit[3])
|
||
{
|
||
size_t cclass, cport;
|
||
|
||
cclass = z - pzsplit[3];
|
||
cport = strlen (pzsplit[0]);
|
||
zport = malloc (cport + cclass + 1);
|
||
if (zport == NULL)
|
||
{
|
||
qglobal->ierrno = errno;
|
||
iret = UUCONF_MALLOC_FAILED | UUCONF_ERROR_ERRNO;
|
||
break;
|
||
}
|
||
memcpy ((pointer) zport, (pointer) pzsplit[0], cport);
|
||
memcpy ((pointer) (zport + cport), (pointer) pzsplit[3],
|
||
cclass);
|
||
zport[cport + cclass] = '\0';
|
||
}
|
||
}
|
||
|
||
/* Make sure the name and baud rate match any argument. */
|
||
if ((zname != NULL
|
||
&& strcmp (zport, zname) != 0)
|
||
|| (ibaud != 0
|
||
&& ilow != 0
|
||
&& (ilow > ibaud || ihigh < ibaud)))
|
||
{
|
||
if (zport != pzsplit[0])
|
||
free ((pointer) zport);
|
||
continue;
|
||
}
|
||
|
||
/* Some systems permit ,M after the device name. This means
|
||
to open the port with O_NDELAY and then change it. We
|
||
just ignore this flag, although perhaps we should record
|
||
it somewhere. */
|
||
pzsplit[1][strcspn (pzsplit[1], ",")] = '\0';
|
||
|
||
/* Now we must construct the port information, so that we
|
||
can pass it to pifn. The port type is determined by its
|
||
name, unfortunately. The name "Direct" is used for a
|
||
direct port, "TCP" for a TCP port, and anything else for
|
||
a modem port. */
|
||
pblock = NULL;
|
||
_uuconf_uclear_port (qport);
|
||
qport->uuconf_zname = zport;
|
||
qport->uuconf_zprotocols = zprotos;
|
||
if (strcmp (pzsplit[0], "Direct") == 0)
|
||
{
|
||
qport->uuconf_ttype = UUCONF_PORTTYPE_DIRECT;
|
||
qport->uuconf_u.uuconf_sdirect.uuconf_zdevice = pzsplit[1];
|
||
qport->uuconf_u.uuconf_sdirect.uuconf_ibaud = ilow;
|
||
}
|
||
else if (strcmp (pzsplit[0], "TCP") == 0)
|
||
{
|
||
/* For a TCP port, the device name is taken as the TCP
|
||
port to use. */
|
||
qport->uuconf_ttype = UUCONF_PORTTYPE_TCP;
|
||
qport->uuconf_ireliable
|
||
= (UUCONF_RELIABLE_ENDTOEND | UUCONF_RELIABLE_RELIABLE
|
||
| UUCONF_RELIABLE_EIGHT | UUCONF_RELIABLE_FULLDUPLEX
|
||
| UUCONF_RELIABLE_SPECIFIED);
|
||
qport->uuconf_u.uuconf_stcp.uuconf_zport = pzsplit[1];
|
||
}
|
||
else if (ctoks >= 5
|
||
&& (strcmp (pzsplit[4], "TLI") == 0
|
||
|| strcmp (pzsplit[4], "TLIS") == 0))
|
||
{
|
||
size_t c;
|
||
char **pzd;
|
||
|
||
qport->uuconf_ttype = UUCONF_PORTTYPE_TLI;
|
||
qport->uuconf_u.uuconf_stli.uuconf_zdevice = pzsplit[1];
|
||
qport->uuconf_u.uuconf_stli.uuconf_fstream
|
||
= strcmp (pzsplit[4], "TLIS") == 0;
|
||
qport->uuconf_u.uuconf_stli.uuconf_pzpush = NULL;
|
||
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_stli.uuconf_pzdialer = pzd;
|
||
qport->uuconf_u.uuconf_stli.uuconf_zservaddr = NULL;
|
||
qport->uuconf_ireliable
|
||
= (UUCONF_RELIABLE_ENDTOEND | UUCONF_RELIABLE_RELIABLE
|
||
| UUCONF_RELIABLE_EIGHT | UUCONF_RELIABLE_FULLDUPLEX
|
||
| UUCONF_RELIABLE_SPECIFIED);
|
||
}
|
||
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;
|
||
if (ctoks < 5)
|
||
qport->uuconf_u.uuconf_smodem.uuconf_pzdialer = NULL;
|
||
else
|
||
{
|
||
size_t c;
|
||
char **pzd;
|
||
|
||
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 (zport != pzsplit[0])
|
||
free ((pointer) zport);
|
||
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
|
||
|| (zport != pzsplit[0]
|
||
&& uuconf_add_block (pblock, zport) != 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 (iret != UUCONF_NOT_FOUND)
|
||
break;
|
||
}
|
||
|
||
if (zline != NULL)
|
||
free ((pointer) zline);
|
||
if (pzsplit != NULL)
|
||
free ((pointer) pzsplit);
|
||
|
||
if (iret != UUCONF_SUCCESS && iret != UUCONF_NOT_FOUND)
|
||
{
|
||
qglobal->zfilename = *pz;
|
||
iret |= UUCONF_ERROR_FILENAME | UUCONF_ERROR_LINENO;
|
||
}
|
||
|
||
return iret;
|
||
}
|