/* vport.c Find a port in the V2 configuration files. Copyright (C) 1992, 1993, 2002 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. */ #include "uucnfi.h" #if USE_RCS_ID const char _uuconf_vport_rcsid[] = "$Id: vport.c,v 1.12 2002/03/05 19:10:43 ian Rel $"; #endif #include #include /* 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 ATTRIBUTE_UNUSED; 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; }