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TheNetNode-CB/contrib/onlhelp/oh.c

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11 KiB
C
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/************************************************************************/
/* */
/* ***** ***** */
/* ***** ***** */
/* ***** ***** */
/* ***** ***** */
/* *************** *************** */
/* ***************** ***************** */
/* *************** *************** */
/* ***** ***** TheNetNode */
/* ***** ***** Portable */
/* ***** ***** Network */
/* ***** ***** Software */
/* */
/* File contrib/onlhelp/oh.c (maintained by: DL1XAO) */
/* */
/* This file is part of "TheNetNode" - Software Package */
/* */
/* Copyright (C) 1998 - 2008 NORD><LINK e.V. Braunschweig */
/* */
/* This program is free software; you can redistribute it and/or modify */
/* it under the terms of the NORD><LINK ALAS (Allgemeine Lizenz fuer */
/* Amateurfunk Software) as published by Hans Georg Giese (DF2AU) */
/* on 13/Oct/1992; either version 1, or (at your option) any later */
/* version. */
/* */
/* This program is distributed WITHOUT ANY WARRANTY only for further */
/* development and learning purposes. See the ALAS (Allgemeine Lizenz */
/* fuer Amateurfunk Software). */
/* */
/* You should have received a copy of the NORD><LINK ALAS (Allgemeine */
/* Lizenz fuer Amateurfunk Software) along with this program; if not, */
/* write to NORD><LINK e.V., Hinter dem Berge 5, D-38108 Braunschweig */
/* */
/* Dieses Programm ist PUBLIC DOMAIN, mit den Einschraenkungen durch */
/* die ALAS (Allgemeine Lizenz fuer Amateurfunk Software), entweder */
/* Version 1, veroeffentlicht von Hans Georg Giese (DF2AU), */
/* am 13.Oct.1992, oder (wenn gewuenscht) jede spaetere Version. */
/* */
/* Dieses Programm wird unter Haftungsausschluss vertrieben, aus- */
/* schliesslich fuer Weiterentwicklungs- und Lehrzwecke. Naeheres */
/* koennen Sie der ALAS (Allgemeine Lizenz fuer Amateurfunk Software) */
/* entnehmen. */
/* */
/* Sollte dieser Software keine ALAS (Allgemeine Lizenz fuer Amateur- */
/* funk Software) beigelegen haben, wenden Sie sich bitte an */
/* NORD><LINK e.V., Hinter dem Berge 5, D-38108 Braunschweig */
/* */
/************************************************************************/
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <stdlib.h>
#ifdef WIN32
#define MODI "(01.08.04) Modifiziert fuer Win32 von DAA531 Oliver Kern."
#endif
#define VERSION "1.1"
#define VDATUM "Mar 01 2000"
char *helpfn;
char *idxfn;
char progname[128];
#if defined(WIN32) && defined(_MSC_VER)
int strcasecmp(const char *Sstr, const char *Dstr)
{
char _Sstr[255];
char _Dstr[255];
if ( (Sstr == NULL)
||(Dstr == NULL))
return(1);
strcpy(_Sstr, Sstr);
strcpy(_Dstr, Dstr);
strupr(_Sstr);
strupr(_Dstr);
if (strcmp(_Sstr, _Dstr) == 0)
return(0);
else
return(1);
}
int strncasecmp(const char *Sstr, const char *Dstr, int len)
{
char _Sstr[255];
char _Dstr[255];
if ( (Sstr == NULL)
||(Dstr == NULL))
return(1);
strcpy(_Sstr, Sstr);
strcpy(_Dstr, Dstr);
strupr(_Sstr);
strupr(_Dstr);
if (strncmp(_Sstr, _Dstr, len) == 0)
return(0);
else
return(1);
}
#endif /* WIN32 */
int gettopic(char *in, char *topic) /* prueft auf Zeile mit Befehl*/
{
if (*in == '(' && strchr(in, ')')) {
sscanf(in, "%s", topic);
if (strstr(in, "externer Befehl"))
return 2;
return 1;
}
return 0;
}
void getcmd(char *cmd) /* liest den Befehl ohne Klammern */
{
char *cp = cmd;
if (*cmd == '(')
cmd++;
while (*cmd && *cmd != ')')
*cp++ = *cmd++;
if (*cmd == ')')
cmd++;
while (*cmd)
*cp++ = *cmd++;
*cp = '\0';
}
int genindex(void) /* legt Index-File an */
{
FILE *fpt, *fpi;
char in[128], c_cmd[32], tmp[32];
#ifdef WIN32
int state,
i,
lines = 0;
#else
int state, i, lines;
#endif /* WIN32 */
long pos;
if ((fpt = fopen(helpfn, "r")) == NULL) {
puts("Konnte Hilfedatei nicht oeffnen.");
return 0;
}
if ((fpi = fopen(idxfn, "w")) == NULL) {
puts("Konnte Index nicht anlegen.");
fclose(fpt);
return 0;
}
state = 1;
pos = 0;
while (fgets(in, 120, fpt) != NULL) {
if (state == 1) { /* fetch version */
if (!strncmp(in, "TNN-Doku-Version", 16)) {
fprintf(fpi, "%s", in);
state++;
}
}
else if (state == 2) { /* fetch first topic */
if ((i = gettopic(in, tmp)) != 0) {
fprintf(fpi, "%s %d %ld ", tmp, i - 1, pos);
strcpy(c_cmd, tmp);
lines = 1;
state++;
}
}
else if (state == 3) { /* fetch next topics */
if ( (i = gettopic(in, tmp)) != 0
&& strcasecmp(c_cmd, tmp)) {
fprintf(fpi, "%d\n%s %d %ld ", lines, tmp, i - 1, pos);
strcpy(c_cmd, tmp);
lines = 1;
}
else
lines++;
}
pos = ftell(fpt);
}
fprintf(fpi, "%d\n", lines);
fclose(fpt);
fclose(fpi);
return 1;
}
int checkindex(void) /* prueft, ob Indexfile neu angelegt werden muss */
{
struct stat statbuf1, statbuf2;
if (stat(helpfn, &statbuf1)) {
puts("Hilfe-Datei fehlt. Bitte Sysop verstaendigen !");
return 0;
}
if (stat(idxfn, &statbuf2))
statbuf2.st_ctime = 0;
if (statbuf1.st_ctime > statbuf2.st_ctime) {
puts("Generiere Index.");
return genindex();
}
return 1;
}
void overview(void) /* Alle Befehle in der Uebersicht */
{
FILE *fpi;
char in[128], cmd[32];
int left, ext, lines;
long pos;
if ((fpi = fopen(idxfn, "r")) != NULL) {
puts("Programm-"VERSION" vom "VDATUM" by DL1XAO");
fgets(in, 100, fpi);
printf("%s", in);
#ifdef WIN32
puts(""MODI"\n");
#endif
puts("\nFolgende Befehle sind laut Dokumentation verfuegbar :");
puts("\nBefehl Hilfe-Seiten Befehl Hilfe-Seiten");
left = 1;
while (fgets(in, 120, fpi) != NULL) {
sscanf(in, "%s %d %ld %d\n", cmd, &ext, &pos, &lines);
lines = (lines + 18) / 20;
printf("%-15s%s", cmd, ext ? "(extern) " : " ");
if (left)
printf("%2d ", lines);
else
printf("%2d\n", lines);
left = 1 - left; /* Seitenwechsel */
}
puts("\nExterne Befehle sind nicht bei jedem Digi vorhanden !");
fclose(fpi);
}
}
/* Topic im Index suchen */
int findtopic(char *topic, char *fcmd, long *pos, int *lines)
{
FILE *fpi;
char in[128], cmd[32];
int ext;
if ((fpi = fopen(idxfn, "r")) != NULL) {
fgets(in, 100, fpi);
while (fgets(in, 120, fpi) != NULL) {
sscanf(in, "%s %d %ld %d\n", cmd, &ext, pos, lines);
strcpy(fcmd, cmd);
getcmd(cmd);
if (!strncasecmp(topic, cmd, strlen(topic))) {
fclose(fpi);
return 1;
}
}
fclose(fpi);
}
return 0;
}
void showhelp(char *topic, int startpage) /* Hilfe zu topic anzeigen */
{
FILE *fpt;
char in[128], cmd[32] ,*cp;
int lines, pages, n;
long pos;
if (!findtopic(topic, cmd, &pos, &lines)) {
printf("Keine Hilfe zu %s gefunden.\n", topic);
return;
}
pages = (lines + 18) / 20;
if (startpage > pages) {
printf("Keine Seite %d zu %s vorhanden.\n", startpage, topic);
return;
}
if ((fpt = fopen(helpfn, "r")) != NULL) {
fseek(fpt, pos, SEEK_SET);
if (startpage == -1) { /* display all */
while (lines && fgets(in, 120, fpt) != NULL) {
printf("%s", in);
lines--;
}
}
else { /* show one page */
fgets(in, 120, fpt);
lines--;
if ((cp = strchr(in, '\n')) != NULL)
*cp = '\0';
printf("%-70.70s Seite %d\n", in, startpage);
n = (startpage - 1) * 20; /* skip n lines */
while (n-- && fgets(in, 120, fpt) != NULL)
lines--;
n = (lines > 20) ? 20 : lines;
while (n-- && fgets(in, 120, fpt) != NULL) { /* show page */
printf("%s", in);
lines--;
}
if (lines)
printf("Weiter mit \'%s %s %d\'\n", progname, topic, startpage + 1);
else
printf("Ende Hilfe zu %s!\n", cmd);
}
fclose(fpt);
}
}
void sysopcheck(char *pname) /* sind wir SYSHELP ? */
{
char *cp;
cp = strrchr(pname, '/');
if (!cp)
cp = strrchr(pname, '\\');
if (!cp)
cp = pname - 1;
strcpy(progname, cp + 1);
if ((cp = strchr(progname, '.')) != NULL)
*cp = '\0';
if (!strncasecmp(progname, "SYSH", 4)) {
helpfn = "ohs.txt";
idxfn = "ohs.idx";
}
else {
helpfn = "ohu.txt";
idxfn = "ohu.idx";
}
}
int main(int argc, char **argv)
{
char topic[32];
int start;
puts("\nHilfe fuer TNN");
sysopcheck(argv[0]);
if (checkindex()) {
if (argc < 2) {
puts("Zuwenig Parameter angegeben !");
}
else if (argc == 2) { /* oh dl1xao */
overview();
}
else if (argc == 3 || argc == 4) { /* oh st [2|*] dl1xao */
strncpy(topic, argv[1], 30);
topic[30] ='\0';
getcmd(topic);
start = 1;
if (argc == 4) {
if (*argv[2] == '*')
start = -1;
else {
start = atoi(argv[2]);
if (start < 1 || start > 20) {
puts("Nummer der Folgeseite muss zwischen 1 und 20 liegen !");
return 1;
}
}
}
showhelp(argv[1], start);
}
else {
puts("Zuviele Parameter angegeben !");
}
}
return 0;
}
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