740 lines
19 KiB
C++
740 lines
19 KiB
C++
// This may look like C code, but it is really -*- C++ -*-
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// ------------------------------------------------------------------
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// The Goldware Library
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// Copyright (C) 1990-1999 Odinn Sorensen
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// Copyright (C) 1999-2000 Alexander S. Aganichev
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// ------------------------------------------------------------------
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free
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// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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// MA 02111-1307, USA
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// ------------------------------------------------------------------
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// $Id$
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// ------------------------------------------------------------------
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// FrontDoor Nodelist Indexing.
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// Based on code kindly provided by Scott Dudley.
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// ------------------------------------------------------------------
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#include <gfilutil.h>
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#include <gstrall.h>
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#include <gftnnlfd.h>
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#include <stdlib.h>
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// ------------------------------------------------------------------
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inline const _FDUdx& ftn_frontdoor_nodelist_index::namerec() const {
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return block.node.name[node-1];
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}
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// ------------------------------------------------------------------
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inline const _FDFdx& ftn_frontdoor_nodelist_index::addrrec() const {
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return block.node.addr[node-1];
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}
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// ------------------------------------------------------------------
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inline const _FDGdx& ftn_frontdoor_nodelist_index::noderec() const {
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return namebrowse ? *((_FDGdx*)&block.node.name[node-1]) : *((_FDGdx*)&block.node.addr[node-1]);
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}
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// ------------------------------------------------------------------
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int ftn_frontdoor_nodelist_index::namecmp() const {
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#ifdef DEBUG
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printf("[%s] [%-15.15s] ", searchname, namerec().name);
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#endif
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const char* a = searchname;
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const char* b = namerec().name;
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int n = 1;
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while(n <= 15) {
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int d = (int)((byte)*a) - (int)((byte)*b);
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if(d != 0)
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return d > 0 ? n : -n;
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a++;
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b++;
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n++;
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}
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return 0;
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}
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// ------------------------------------------------------------------
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void ftn_frontdoor_nodelist_index::getaddr(ftn_addr& addr) const {
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if(namebrowse) {
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addr.zone = (word)((namerec().zone_hi << 8) | namerec().zone_lo);
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addr.net = (word)((namerec().net_hi << 8) | namerec().net_lo);
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addr.node = (word)((namerec().node_hi << 8) | namerec().node_lo);
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addr.point = (word)((namerec().point_hi << 8) | namerec().point_lo);
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}
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else {
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addr.zone = (word)((addrrec().zone_hi << 8) | addrrec().zone_lo);
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addr.net = (word)((addrrec().net_hi << 8) | addrrec().net_lo);
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addr.node = (word)((addrrec().node_hi << 8) | addrrec().node_lo);
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addr.point = (word)((addrrec().point_hi << 8) | addrrec().point_lo);
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}
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}
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// ------------------------------------------------------------------
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int ftn_frontdoor_nodelist_index::addrcmp() const {
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ftn_addr currentaddr;
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getaddr(currentaddr);
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#ifdef DEBUG
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printf("[%d:%d/%d.%d] [%d:%d/%d.%d] ",
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searchaddr.zone, searchaddr.net, searchaddr.node, searchaddr.point,
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currentaddr.zone, currentaddr.net, currentaddr.node, currentaddr.point
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);
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#endif
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return searchaddr.compare(currentaddr);
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}
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// ------------------------------------------------------------------
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void ftn_frontdoor_nodelist_index::getstatus(char* _status, int type) const {
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switch(type) {
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case ISZC: strcpy(_status, "Zone"); break;
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case ISRC: strcpy(_status, "Region"); break;
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case ISNC: strcpy(_status, "Host"); break;
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case ISHUB: strcpy(_status, "Hub"); break;
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case ISPVT: strcpy(_status, "Pvt"); break;
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case ISHOLD: strcpy(_status, "Hold"); break;
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case ISDOWN: strcpy(_status, "Down"); break;
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case ISPOINT: strcpy(_status, "Point"); break;
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default: *_status = NUL;
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}
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}
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// ------------------------------------------------------------------
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void ftn_frontdoor_nodelist_index::fetchdata() {
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bool infdpvt = !!(noderec().nlofs & IN_FDNET);
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bool infdpoint = !!(noderec().nlofs & IN_FDPOINT);
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bool infdnode = !!(noderec().nlofs & IN_FDNODE);
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if(infdnode) {
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int fd = ::sopen(AddPath(nlpath, "FDNODE.FDA"), O_RDONLY|O_BINARY, SH_DENYNO, S_STDRD);
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if(fd != -1) {
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_FDFdn fda;
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while(read(fd, &fda, sizeof(_FDFdn)) == sizeof(_FDFdn)) {
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if(not fda.erased) {
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if((fda.zone == data.addr.zone) and (fda.net == data.addr.net) and (fda.node == data.addr.node) and (fda.point == data.addr.point)) {
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strnp2cc(data.name, fda.user, 36);
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strnp2cc(data.system, fda.name, 30);
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strnp2cc(data.phone, fda.telephone, 40);
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strnp2cc(data.location, fda.location, 40);
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switch(fda.maxbaud) {
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case ISBAUD300 : strcpy(data.baud, "300"); break;
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case ISBAUD1200 : strcpy(data.baud, "1200"); break;
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case ISBAUD2400 : strcpy(data.baud, "2400"); break;
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case ISBAUD4800 : strcpy(data.baud, "4800"); break;
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case ISBAUD7200 : strcpy(data.baud, "7200"); break;
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case ISBAUD9600 : strcpy(data.baud, "9600"); break;
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case ISBAUD12000 : strcpy(data.baud, "12000"); break;
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case ISBAUD14400 : strcpy(data.baud, "14400"); break;
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case ISBAUD16800 : strcpy(data.baud, "16800"); break;
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case ISBAUD19200 : strcpy(data.baud, "19200"); break;
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case ISBAUD38400 : strcpy(data.baud, "38400"); break;
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case ISBAUD57600 : strcpy(data.baud, "57600"); break;
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case ISBAUD64000 : strcpy(data.baud, "64000"); break;
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case ISBAUD76800 : strcpy(data.baud, "76800"); break;
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case ISBAUD115200: strcpy(data.baud, "115200"); break;
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default: *data.baud = NUL;
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}
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getstatus(data.status, fda.status);
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*data.flags = NUL;
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long c = fda.capability;
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char* f = data.flags;
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if(c & CMflag) strcat(f, "CM,");
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if(c & MOflag) strcat(f, "MO,");
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if(c & LOflag) strcat(f, "LO,");
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if(c & V32flag) strcat(f, "V32,");
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if(c & V32bflag) strcat(f, "V32B,");
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if(c & V33flag) strcat(f, "V33,");
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if(c & V34flag) strcat(f, "V34,");
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if(c & V42flag) strcat(f, "V42,");
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if(c & V42bflag) strcat(f, "V42B,");
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if(c & MNPflag) strcat(f, "MNP,");
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if(c & H96flag) strcat(f, "H96,");
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if(c & HSTflag) strcat(f, "HST,");
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if(c & HST14flag) strcat(f, "H14,");
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if(c & HST16flag) strcat(f, "H16,");
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if(c & MAXflag) strcat(f, "MAX,");
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if(c & PEPflag) strcat(f, "PEP,");
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if(c & ZYXflag) strcat(f, "ZYX,");
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if(c & XAflag) strcat(f, "XA,");
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if(c & XBflag) strcat(f, "XB,");
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if(c & XCflag) strcat(f, "XC,");
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if(c & XPflag) strcat(f, "XP,");
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if(c & XRflag) strcat(f, "XR,");
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if(c & XWflag) strcat(f, "XW,");
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if(c & XXflag) strcat(f, "XX,");
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if(c & FAXflag) strcat(f, "FAX,");
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if(c & UISDNAflag) strcat(f, "V110L,");
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if(c & UISDNBflag) strcat(f, "V110H,");
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if(c & UISDNCflag) strcat(f, "X75,");
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if(*f) f[strlen(f)-1] = NUL;
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break;
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}
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}
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}
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::close(fd);
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}
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}
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else {
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int fd = infdpvt ? pfd : (infdpoint ? ppfd : nfd);
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long offset = noderec().nlofs & ~(IN_FDNET|IN_FDPOINT);
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char buf[256];
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buf[255] = NUL;
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lseek(fd, offset, SEEK_SET);
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read(fd, buf, 255);
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if(*buf != ';') {
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char* end = strchr(buf, '\r');
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if(end)
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*end = NUL;
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strchg(strtrim(buf), '_', ' ');
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*data.name = NUL;
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*data.system = NUL;
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*data.location = NUL;
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*data.phone = NUL;
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*data.flags = NUL;
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*data.baud = NUL;
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char* q = buf;
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char* p = strchr(buf, ',');
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if(p) {
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*p++ = NUL;
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strxcpy(data.system, q, sizeof(data.system));
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p = strchr((q=p), ',');
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if(p) {
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*p++ = NUL;
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strxcpy(data.location, q, sizeof(data.location));
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p = strchr((q=p), ',');
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if(p) {
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*p++ = NUL;
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strxcpy(data.name, q, sizeof(data.name));
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p = strchr((q=p), ',');
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if(p) {
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*p++ = NUL;
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strxcpy(data.phone, q, sizeof(data.phone));
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p = strchr((q=p), ',');
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sprintf(data.baud, "%lu", atol(q));
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if(p)
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strxcpy(data.flags, p+1, sizeof(data.flags));
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}
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}
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}
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}
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}
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getstatus(data.status, namebrowse ? namerec().type : addrrec().type);
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}
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data.addr.make_string(data.address);
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}
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// ------------------------------------------------------------------
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#ifdef DEBUG
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void ftn_frontdoor_nodelist_index::printnode() const {
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printf("<%05d.%05d.%05d.%d> <%02d:%02d> ",
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blockno,
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block.info.index,
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noderec().block_num,
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depth,
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block.info.nodes,
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node
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);
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}
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#endif
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// ------------------------------------------------------------------
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void ftn_frontdoor_nodelist_index::getnodedata() {
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#ifdef DEBUG
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printnode();
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#endif
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getaddr(data.addr);
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fetchdata();
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}
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// ------------------------------------------------------------------
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void ftn_frontdoor_nodelist_index::getblock() {
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lseek(xfd, (long)blockno*(long)blocksize, SEEK_SET);
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read(xfd, &block, blocksize);
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}
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// ------------------------------------------------------------------
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void ftn_frontdoor_nodelist_index::push() {
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stack[depth].blockno = blockno;
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stack[depth].block_num = noderec().block_num;
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stack[depth].maxnodes = block.info.nodes;
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stack[depth].node = node;
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depth++;
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}
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// ------------------------------------------------------------------
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void ftn_frontdoor_nodelist_index::pop() {
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depth--;
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node = stack[depth].node;
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blockno = stack[depth].blockno;
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}
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// ------------------------------------------------------------------
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bool ftn_frontdoor_nodelist_index::search() {
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xfd = namebrowse ? ufd : fdfd;
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blocksize = namebrowse ? sizeof(_FDUdb) : sizeof(_FDFdb);
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// Read beginning control block
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lseek(xfd, 0L, SEEK_SET);
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read(xfd, &ctl, sizeof(_FDCtl));
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// Now trace down the tree, starting at the master index
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exactmatch = false;
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int diff = 0;
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int prevdiff = 0;
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blockno = ctl.hdr.master_idx;
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maxblockno = (uint)(lseek(xfd, 0L, SEEK_END)/blocksize);
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depth = 0;
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node = 1;
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push();
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// Do one block at a time...
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while((not exactmatch) and (blockno < maxblockno)) {
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// Get one block
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node = 0;
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getblock();
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// Scan all nodes in this block to find a match
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lastblockno = block.info.index;
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do {
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node++;
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if(namebrowse) {
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#ifdef DEBUG
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printnode();
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#endif
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prevdiff = diff;
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diff = namecmp();
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#ifdef DEBUG
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printf("{%d}\n", diff);
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#endif
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if(diff <= 0) {
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if(diff == 0) {
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exactmatch = true;
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}
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break;
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}
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lastblockno = namerec().block_num;
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}
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else {
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#ifdef DEBUG
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printnode();
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#endif
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prevdiff = diff;
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diff = addrcmp();
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#ifdef DEBUG
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printf("{%d}\n", diff);
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#endif
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if(diff <= 0) {
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if(diff == 0) {
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exactmatch = true;
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}
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break;
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}
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lastblockno = addrrec().block_num;
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}
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} while(node < block.info.nodes);
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if(not exactmatch) {
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if(lastblockno) {
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push();
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blockno = lastblockno;
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}
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else {
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break;
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}
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}
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}
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if(diff == 0) {
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#ifdef DEBUG
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printf("Gotcha!\n");
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#endif
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while(previous()) {
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if(not exactmatch) {
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next();
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break;
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}
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}
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return true;
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}
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else if((prevdiff > 0) and (diff < 0)) {
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if(absolute(prevdiff) > absolute(diff)) {
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#ifdef DEBUG
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printf("Begin lookup at previous blockno.\n");
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#endif
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prevnode();
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}
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}
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else {
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#ifdef DEBUG
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printf("Begin lookup at current blockno.\n");
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#endif
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}
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getnodedata();
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return exactmatch;
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}
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// ------------------------------------------------------------------
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bool ftn_frontdoor_nodelist_index::prevnode() {
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if(node == 1) {
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if(blockno == 1)
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return false;
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if(depth > 0) {
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pop();
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getblock();
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node--;
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if(node <= 0) {
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blockno = block.info.index;
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getblock();
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node = block.info.nodes;
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}
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}
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else {
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return false;
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}
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}
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else {
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node--;
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if(noderec().block_num) {
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node++;
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push();
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node--;
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blockno = noderec().block_num;
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getblock();
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node = block.info.nodes;
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}
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}
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return true;
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}
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// ------------------------------------------------------------------
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bool ftn_frontdoor_nodelist_index::nextnode() {
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if(noderec().block_num) {
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// Current node has a block. Go to it.
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node++;
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push();
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node--;
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blockno = noderec().block_num;
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node = 1;
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getblock();
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}
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else if(node >= block.info.nodes) {
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// Reached end of nodes in current block.
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if(depth > 0) {
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if((stack[depth-1].node == stack[depth-1].maxnodes) and (stack[depth-1].block_num == blockno))
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return false;
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// Go back to previous block
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pop();
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getblock();
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}
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else {
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// Reached final leaf
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return false;
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}
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}
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else {
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node++;
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}
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return true;
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}
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// ------------------------------------------------------------------
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ftn_frontdoor_nodelist_index::ftn_frontdoor_nodelist_index() {
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fdfd = nfd = pfd = ppfd = ufd = -1;
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is_intermail = false;
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isopen = false;
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blocksize = 0;
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depth = 0;
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}
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// ------------------------------------------------------------------
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ftn_frontdoor_nodelist_index::~ftn_frontdoor_nodelist_index() {
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if(isopen)
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close();
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}
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// ------------------------------------------------------------------
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bool ftn_frontdoor_nodelist_index::open() {
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if(isopen)
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close();
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if(fexist(AddPath(nlpath, "IMNODE.CTL")))
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is_intermail = true;
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// Open the nodelist binary file first
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fdfd = ::sopen(AddPath(nlpath, "NODELIST.FDX"), O_RDONLY|O_BINARY, SH_DENYNO, S_STDRD);
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if(fdfd == -1) {
|
|
close();
|
|
return false;
|
|
}
|
|
|
|
// Read the control block up front
|
|
read(fdfd, &ctl, sizeof(_FDCtl));
|
|
|
|
// Now use that info to open the primary nodelist
|
|
Path primary;
|
|
sprintf(nodelist, "NODELIST.%3.3s", ctl.nl_ext);
|
|
sprintf(primary, "%s%s", nlpath, nodelist);
|
|
nfd = ::sopen(primary, O_RDONLY | O_BINARY, SH_DENYNO, S_STDRD);
|
|
// Don't check for failure, since there may not be a primary nodelist!
|
|
|
|
// Open the userlist file
|
|
ufd = ::sopen(AddPath(nlpath, "USERLIST.FDX"), O_RDONLY|O_BINARY, SH_DENYNO, S_STDRD);
|
|
if(ufd == -1) {
|
|
close();
|
|
return false;
|
|
}
|
|
|
|
// Failing to open the private nodelist is not an error, since there may not be one!
|
|
pfd = ::sopen(AddPath(nlpath, is_intermail ? "IMNET.PVT" : "FDNET.PVT"), O_RDONLY|O_BINARY, SH_DENYNO, S_STDRD);
|
|
|
|
// Failing to open the point nodelist is not an error, since there may not be one!
|
|
ppfd = ::sopen(AddPath(nlpath, is_intermail ? "IMPOINT.PVT" : "FDPOINT.PVT"), O_RDONLY|O_BINARY, SH_DENYNO, S_STDRD);
|
|
|
|
isopen = true;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
void ftn_frontdoor_nodelist_index::close() {
|
|
|
|
if(fdfd != -1) ::close(fdfd); fdfd = -1;
|
|
if(nfd != -1) ::close(nfd); nfd = -1;
|
|
if(pfd != -1) ::close(pfd); pfd = -1;
|
|
if(ppfd != -1) ::close(ppfd); ppfd = -1;
|
|
if(ufd != -1) ::close(ufd); ufd = -1;
|
|
|
|
isopen = false;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
bool ftn_frontdoor_nodelist_index::find(const char* lookup_name) {
|
|
|
|
char buf[80], tmp[80];
|
|
|
|
strcpy(tmp, lookup_name);
|
|
namebrowse = true;
|
|
char* ptr = strrchr(tmp, ' ');
|
|
if(ptr) {
|
|
if(ptr == (tmp+strlen(tmp)-1)) {
|
|
while((*ptr == ' ') and (ptr > tmp))
|
|
ptr--;
|
|
ptr++;
|
|
}
|
|
*ptr = NUL;
|
|
sprintf(buf, "%s %s", ptr+1, tmp);
|
|
*ptr = ' ';
|
|
}
|
|
else {
|
|
strcpy(buf, tmp);
|
|
}
|
|
strupr(strtrim(buf));
|
|
sprintf(searchname, "%-15.15s", buf);
|
|
|
|
return search();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
bool ftn_frontdoor_nodelist_index::find(const ftn_addr& addr) {
|
|
|
|
namebrowse = false;
|
|
searchaddr = addr;
|
|
return search();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
bool ftn_frontdoor_nodelist_index::previous() {
|
|
|
|
bool moved = prevnode();
|
|
if(moved) {
|
|
getnodedata();
|
|
compare();
|
|
}
|
|
return moved;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
bool ftn_frontdoor_nodelist_index::next() {
|
|
|
|
bool moved = nextnode();
|
|
if(moved) {
|
|
getnodedata();
|
|
compare();
|
|
}
|
|
return moved;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
void ftn_frontdoor_nodelist_index::first() {
|
|
|
|
if(namebrowse) {
|
|
memset(searchname, ' ', sizeof(searchname)-1);
|
|
searchname[sizeof(searchname)-1] = NUL;
|
|
}
|
|
else {
|
|
searchaddr.reset();
|
|
}
|
|
search();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
void ftn_frontdoor_nodelist_index::last() {
|
|
|
|
if(namebrowse) {
|
|
memset(searchname, 0xFF, sizeof(searchname)-1);
|
|
searchname[sizeof(searchname)-1] = NUL;
|
|
}
|
|
else {
|
|
searchaddr.set_all(0xFFFF);
|
|
}
|
|
search();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
void ftn_frontdoor_nodelist_index::push_state() {
|
|
|
|
state.node = node;
|
|
state.depth = depth;
|
|
state.blockno = blockno;
|
|
memcpy(state.stack, stack, sizeof(stack));
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
void ftn_frontdoor_nodelist_index::pop_state() {
|
|
|
|
memcpy(stack, state.stack, sizeof(stack));
|
|
blockno = state.blockno;
|
|
depth = state.depth;
|
|
node = state.node;
|
|
getblock();
|
|
getnodedata();
|
|
compare();
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
const char* ftn_frontdoor_nodelist_index::index_name() const {
|
|
|
|
return namebrowse ? "USERLIST.FDX" : "NODELIST.FDX";
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|
|
|
|
const char* ftn_frontdoor_nodelist_index::nodelist_name() const {
|
|
|
|
if(noderec().nlofs & IN_FDNODE)
|
|
return "FDNODE.FDA";
|
|
else if(noderec().nlofs & IN_FDNET)
|
|
return is_intermail ? "IMNET.PVT" : "FDNET.PVT";
|
|
else if(noderec().nlofs & IN_FDPOINT)
|
|
return is_intermail ? "IMPOINT.PVT" : "FDPOINT.PVT";
|
|
return nodelist;
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------
|