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847 lines
20 KiB
847 lines
20 KiB
/********************************************************************/
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/** Microsoft LAN Manager **/
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/** Copyright(c) Microsoft Corp., 1987-1990 **/
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/********************************************************************/
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/***
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* help.c
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* Functions that give access to the text in the file net.hlp
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*
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* Format of the file net.hlp
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*
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* History
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* ??/??/??, stevero, initial code
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* 10/31/88, erichn, uses OS2.H instead of DOSCALLS
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* 01/04/89, erichn, filenames now MAX_PATH LONG
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* 05/02/89, erichn, NLS conversion
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* 06/08/89, erichn, canonicalization sweep
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* 02/20/91, danhi, change to use lm 16/32 mapping layer
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***/
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/* Include files */
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#define INCL_ERRORS
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#define INCL_NOCOMMON
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#define INCL_DOSPROCESS
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#include <os2.h>
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#include <lmcons.h>
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#include <apperr.h>
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#include <apperr2.h>
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#include <lmerr.h>
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#include <stdio.h>
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#include <malloc.h>
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#include "lui.h"
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#include "netcmds.h"
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#include "msystem.h"
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/* Constants */
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#define ENTRY_NOT_FOUND -1
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#define NEXT_RECORD 0
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#define WHITE_SPACE TEXT("\t\n\x0B\x0C\r ")
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#define LINE_LEN 82
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#define OPTION_MAX_LEN 512
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#define DELS TEXT(":,\n")
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#define CNTRL (text[0] == DOT || text[0] == COLON || text[0] == POUND|| text[0] == DOLLAR)
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#define FCNTRL (text[0] == DOT || text[0] == COLON)
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#define HEADER (text[0] == PERCENT || text[0] == DOT || text[0] == BANG)
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#define ALIAS (text[0] == PERCENT)
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#define ADDCOM (text[0] == BANG)
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/* Static variables */
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TCHAR text[LINE_LEN+1];
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TCHAR *options; /* must be sure to malloc! */
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TCHAR *Arg_P[10];
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FILE *hfile;
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/* Forward declarations */
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int find_entry( int, int, HANDLE, int *);
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VOID print_syntax( HANDLE, int );
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VOID print_help( int );
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VOID print_options( int );
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VOID seek_data( int, int );
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LPWSTR skipwtspc( TCHAR FAR * );
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LPWSTR fgetsW(LPWSTR buf, int len, FILE *fh);
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DWORD GetHelpFileName(LPTSTR HelpFileName, DWORD BufferLength);
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DWORD GetFileName(LPTSTR FileName, DWORD BufferLength, LPTSTR FilePartName);
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/* help_help -
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*/
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VOID NEAR pascal
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help_help( SHORT ali, SHORT amt)
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{
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DWORD err;
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int option_level = 1;
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int r;
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int found = 0;
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int out_len = 0;
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int offset;
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int arg_cnt;
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int k;
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SHORT pind = 0;
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TCHAR file_path[MAX_PATH];
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TCHAR str[10];
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TCHAR *Ap;
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TCHAR *tmp;
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TCHAR *stmp;
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TCHAR *t2;
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HANDLE outfile;
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if (!(options = malloc(OPTION_MAX_LEN + 1)))
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ErrorExit(ERROR_NOT_ENOUGH_MEMORY);
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*options = NULLC;
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Arg_P[0] = NET_KEYWORD;
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if (amt == USAGE_ONLY)
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{
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outfile = g_hStdErr;
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}
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else
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{
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outfile = g_hStdOut;
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}
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/* use offset to keep base of Arg_P relative to base of ArgList */
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offset = ali;
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/* increment ali in for loop so you can't get an ali of 0 */
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for (arg_cnt = 0; ArgList[ali++]; arg_cnt < 8 ? arg_cnt++ : 0)
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{
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str[arg_cnt] = (TCHAR)ali;
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}
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str[arg_cnt] = NULLC;
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str[arg_cnt+1] = NULLC; /* just in case the last argument is the first found */
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if (err = GetHelpFileName(file_path, MAX_PATH))
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{
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ErrorExit(err);
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}
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/*
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we need to open help files in binary mode
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because unicode text might contain 0x1a but
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it's not EOF.
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*/
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if ( (hfile = _wfopen(file_path, L"rb")) == 0 )
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{
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ErrorExit(APE_HelpFileDoesNotExist);
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}
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if (!(fgetsW(text, LINE_LEN+1, hfile)))
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{
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ErrorExit(APE_HelpFileEmpty);
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}
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/* comment loop - read and ignore comments */
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while (!HEADER)
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{
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if (!fgetsW(text, LINE_LEN+1, hfile))
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{
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ErrorExit(APE_HelpFileError);
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}
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}
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/* get the list of commands that net help provides help for that are
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not specifically net commands
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*/
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/* ALIAS Loop */
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while (ALIAS) {
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/* the first token read from text is the Real Object (the non alias) */
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tmp = skipwtspc(&text[2]);
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Ap = _tcstok(tmp, DELS);
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/* get each alias for the obove object and compare it to the arg_cnt
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number of args in ArgList */
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while ((tmp = _tcstok(NULL, DELS)) && arg_cnt) {
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tmp = skipwtspc(tmp);
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for (k = 0; k < arg_cnt; k++) {
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/* if there a match store the Objects real name in Arg_P */
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if (!_tcsicmp(tmp, ArgList[(int)(str[k]-1)])) {
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if (!(Arg_P[((int)str[k])-offset] = _tcsdup(Ap)))
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ErrorExit(APE_HelpFileError);
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/* delete the pointer to this argument from the list
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of pointers so the number of compares is reduced */
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stmp = &str[k];
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*stmp++ = NULLC;
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_tcscat(str, stmp);
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arg_cnt--;
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break;
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}
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}
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}
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if (!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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}
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/* if there were any args that weren't aliased copy them into Arg_P */
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for (k = 0; k < arg_cnt; k++)
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Arg_P[((int)str[k])-offset] = ArgList[(int)(str[k]-1)];
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/* check for blank lines between alias declaration and command declarations */
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while (!HEADER) {
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if (!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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}
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while (ADDCOM) {
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if ((arg_cnt) && (!found)) {
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tmp = skipwtspc(&text[2]);
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t2 = _tcschr(tmp, NEWLINE);
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*t2 = NULLC;
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if (!_tcsicmp(tmp, Arg_P[1])) {
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pind = 1;
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found = -1;
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}
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}
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if (!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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}
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/* check for blank lines between command declarations and data */
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while (!FCNTRL) {
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if (!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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}
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if (outfile == g_hStdOut) {
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if (amt == OPTIONS_ONLY)
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InfoPrint(APE_Options);
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else
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InfoPrint(APE_Syntax);
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}
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else {
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if (amt == OPTIONS_ONLY)
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InfoPrintInsHandle(APE_Options, 0, g_hStdErr);
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else
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InfoPrintInsHandle(APE_Syntax, 0, g_hStdErr);
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}
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ali = pind;
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GenOutput(outfile, TEXT("\r\n"));
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/* look for the specific entry (or path) and find its corresponding data */
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/* KKBUGFIX */
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/* U.S. bug. find_entry strcat's to options but options is
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uninitialized. The U.S. version is lucky that the malloc
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returns memory with mostly zeroes so this works. With recent
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changes things are a little different and a malloc returns
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memory with no zeroes so find_entry overwrites the buffer. */
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options[0] = '\0';
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while ((r = find_entry(option_level, ali, outfile, &out_len)) >= 0) {
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if (r) {
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options[0] = NULLC;
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if (Arg_P[++ali]) {
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option_level++;
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if (!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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}
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else {
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seek_data(option_level, 1);
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break;
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}
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}
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}
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r = (r < 0) ? (option_level - 1) : r;
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switch(amt) {
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case ALL:
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/* print the syntax data that was found for this level */
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print_syntax(outfile, out_len);
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print_help(r);
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NetcmdExit(0);
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break;
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case USAGE_ONLY:
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print_syntax(outfile, out_len);
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GenOutput(outfile, TEXT("\r\n"));
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NetcmdExit(1);
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break;
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case OPTIONS_ONLY:
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//fflush( outfile );
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print_options(r);
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NetcmdExit(0);
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break;
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}
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}
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/* find_entry - each invocation of find_entry either finds a match at the
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specified level or advances through the file to the next entry at
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the specified level. If the level requested is greater than the
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next level read ENTRY_NOT_FOUND is returned. */
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int
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find_entry(
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int level,
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int ali,
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HANDLE out,
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int *out_len
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)
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{
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static TCHAR level_key[] = {TEXT(".0")};
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TCHAR *tmp;
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TCHAR *t2;
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level_key[1] = (TCHAR) (TEXT('0') + (TCHAR)level);
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if (level_key[1] > text[1])
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return (ENTRY_NOT_FOUND | ali);
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else {
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tmp = skipwtspc(&text[2]);
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t2 = _tcschr(tmp, NEWLINE);
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if (t2 == NULL)
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{
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//
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// A line in the help file is longer than LINE_LEN
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// so there's no newline character. Bail out.
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//
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ErrorExit(APE_HelpFileError);
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}
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*t2 = NULLC;
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if (!_tcsicmp(Arg_P[ali], tmp)) {
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*t2++ = BLANK;
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*t2 = NULLC;
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GenOutput1(out, TEXT("%s"), tmp);
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*out_len += _tcslen(tmp);
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return level;
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}
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else {
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*t2++ = BLANK;
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*t2 = NULLC;
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_tcscat(options, tmp);
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_tcscat(options, TEXT("| "));
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seek_data(level, 0);
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do {
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if (!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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} while (!FCNTRL);
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return NEXT_RECORD;
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}
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}
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}
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VOID
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print_syntax(
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HANDLE out,
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int out_len
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)
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{
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TCHAR *tmp,
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*rtmp,
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*otmp,
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tchar;
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int off,
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pg_wdth = LINE_LEN - 14;
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tmp = skipwtspc(&text[2]);
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if (_tcslen(tmp) < 2)
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{
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//
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// Used only for syntax of NET (e.g., if user types
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// in "net foo")
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//
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if (_tcslen(options))
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{
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otmp = _tcsrchr(options, PIPE);
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if (otmp == NULL)
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{
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ErrorExit(APE_HelpFileError);
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}
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*otmp = NULLC;
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GenOutput(out, TEXT("[ "));
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out_len += 2;
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tmp = options;
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otmp = tmp;
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off = pg_wdth - out_len;
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while (((int)_tcslen(tmp) + out_len) > pg_wdth)
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{
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if ((tmp + off) > &options[OPTION_MAX_LEN])
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rtmp = (TCHAR*) (&options[OPTION_MAX_LEN]);
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else
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rtmp = (tmp + off);
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/* save TCHAR about to be stomped by null */
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tchar = *++rtmp;
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*rtmp = NULLC;
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/* use _tcsrchr to find last occurance of a space (kanji compatible) */
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if ( ! ( tmp = _tcsrchr(tmp, PIPE) ) ) {
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ErrorExit(APE_HelpFileError);
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}
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/* replace stomped TCHAR */
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*rtmp = tchar;
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rtmp = tmp;
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/* replace 'found space' with null for fprintf */
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*++rtmp = NULLC;
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rtmp++;
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GenOutput1(out, TEXT("%s\r\n"), otmp);
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/* indent next line */
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tmp = rtmp - out_len;
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otmp = tmp;
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while (rtmp != tmp)
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{
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*tmp++ = BLANK;
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}
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}
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GenOutput1(out, TEXT("%s]\r\n"), otmp);
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*tmp = NULLC;
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}
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}
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else
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{
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GenOutput(out, TEXT("\r\n"));
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}
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do
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{
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if (*tmp)
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GenOutput1(out, TEXT("%s"), tmp);
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if(!(tmp = fgetsW(text, LINE_LEN+1, hfile)))
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ErrorExit(APE_HelpFileError);
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if (_tcslen(tmp) > 3)
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tmp += 3;
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}
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while (!CNTRL);
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}
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VOID
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print_help(
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int level
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)
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{
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static TCHAR help_key[] = {TEXT("#0")};
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TCHAR *tmp;
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help_key[1] = (TCHAR)(level) + TEXT('0');
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while (!(text[0] == POUND))
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if(!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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while (text[1] > help_key[1]) {
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help_key[1]--;
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seek_data(--level, 0);
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do {
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if (!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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} while(!(text[0] == POUND));
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}
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tmp = &text[2];
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*tmp = NEWLINE;
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do {
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WriteToCon(TEXT("%s"), tmp);
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if (!(tmp = fgetsW(text, LINE_LEN+1, hfile)))
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ErrorExit(APE_HelpFileError);
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if (_tcslen(tmp) > 3)
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tmp = &text[3];
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} while (!CNTRL);
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}
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VOID
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print_options(int level)
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{
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static TCHAR help_key[] = {TEXT("$0")};
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TCHAR *tmp;
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help_key[1] = (TCHAR)(level) + TEXT('0');
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while (!(text[0] == DOLLAR))
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if(!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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while (text[1] > help_key[1]) {
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help_key[1]--;
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seek_data(--level, 0);
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do {
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if (!fgetsW(text, LINE_LEN+1, hfile))
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ErrorExit(APE_HelpFileError);
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} while(!(text[0] == DOLLAR));
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}
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tmp = &text[2];
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*tmp = NEWLINE;
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do {
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WriteToCon(TEXT("%s"), tmp);
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if (!(tmp = fgetsW(text, LINE_LEN+1, hfile)))
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ErrorExit(APE_HelpFileError);
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if (_tcslen(tmp) > 3)
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tmp = &text[3];
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} while (!CNTRL);
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}
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VOID
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seek_data(int level, int opt_trace)
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{
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static TCHAR data_key[] = {TEXT(":0")};
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static TCHAR option_key[] = {TEXT(".0")};
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TCHAR *tmp;
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TCHAR *t2;
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data_key[1] = (TCHAR)(level) + TEXT('0');
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option_key[1] = (TCHAR)(level) + TEXT('1');
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do {
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if (!(fgetsW(text, LINE_LEN+1, hfile)))
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ErrorExit(APE_HelpFileError);
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if (opt_trace &&
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(!(_tcsncmp(option_key, text, DIMENSION(option_key)-1)))) {
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tmp = skipwtspc(&text[2]);
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t2 = _tcschr(tmp, NEWLINE);
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if (t2 == NULL)
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{
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//
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// A line in the help file is longer than LINE_LEN
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// so there's no newline character. Not good.
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//
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ErrorExit(APE_HelpFileError);
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}
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*t2++ = BLANK;
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*t2 = NULLC;
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_tcscat(options, tmp);
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_tcscat(options, TEXT("| "));
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}
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} while (_tcsncmp(data_key, text, DIMENSION(data_key)-1));
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}
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TCHAR FAR *
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skipwtspc(TCHAR FAR *s)
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{
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s += _tcsspn(s, WHITE_SPACE);
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return s;
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}
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/* help_helpmsg() -- front end for helpmsg utility
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*
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* This function acts as a front end for the OS/2 HELPMSG.EXE
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* utility for NET errors only. It takes as a parameter a string
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* that contains a VALID message id; i.e., of the form NETxxxx
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* or xxxx. The string is assumed to have been screened by the
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* IsNumber() function in grammar.c before coming here.
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JonN 3/31/00 98273: NETCMD: Need to fix the mapping of error 3521
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Before the checkin for 22391, NET1.EXE read errors
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NERR_BASE (2100) <= err < APPERR2_BASE (4300) from NETMSG.DLL,
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and all others from FORMAT_MESSAGE_FROM_SYSTEM.
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After the checkin for 22391, NET1.EXE read errors
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NERR_BASE (2100) < err < MAX_NERR (2999) from NETMSG.DLL,
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and all others from FORMAT_MESSAGE_FROM_SYSTEM.
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On closer examination, NETMSG.DLL currently appears to contain messages from
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0x836 (2102) to 0x169F (5791).
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This is consistent with lmcons.h:
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#define MIN_LANMAN_MESSAGE_ID NERR_BASE
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#define MAX_LANMAN_MESSAGE_ID 5799
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It looks like we have a basic contradiction here:
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3001:
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FORMAT_MESSAGE_FROM_SYSTEM: The specified printer driver is currently in use.
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NETMSG.DLL: *** errors were logged in the last *** minutes.
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3521:
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FORMAT_MESSAGE_FROM_SYSTEM: not found
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NETMSG.DLL: The *** service is not started.
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So what do we do with the error messages in the range
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MAX_NERR (2999) < err <= MAX_LANMAN_MESSAGE_ID
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? The best error message could be in either one.
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Perhaps we should try FORMAT_MESSAGE_FROM_SYSTEM, and if that fails
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fall back to NETMSG.DLL.
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|
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*/
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VOID NEAR pascal
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help_helpmsg(TCHAR *msgid)
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{
|
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USHORT err;
|
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TCHAR * temp = msgid;
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|
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if (!IsNumber(msgid))
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{
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ErrorExitInsTxt(APE_BAD_MSGID, msgid);
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}
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|
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if (n_atou(temp, &err))
|
|
{
|
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ErrorExitInsTxt(APE_BAD_MSGID, msgid);
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|
}
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|
|
|
/* First try FORMAT_MESSAGE_FROM_SYSTEM unless the error is in the range
|
|
NERR_BASE <= err <= MAX_NERR */
|
|
if (err < NERR_BASE || err > MAX_NERR)
|
|
{
|
|
LPWSTR lpMessage = NULL ;
|
|
|
|
if (!FormatMessageW(
|
|
FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
|
|
NULL,
|
|
err,
|
|
0,
|
|
(LPWSTR)&lpMessage,
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|
1024,
|
|
NULL))
|
|
{
|
|
// defer error message and fall back to NETMSG.DLL
|
|
}
|
|
else
|
|
{
|
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WriteToCon(TEXT("\r\n%s\r\n"), lpMessage);
|
|
(void) LocalFree((HLOCAL)lpMessage) ;
|
|
return ;
|
|
}
|
|
}
|
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|
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/* skip NETMSG.DLL if error message is way out of range */
|
|
if (err < NERR_BASE || err > MAX_MSGID) {
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ErrorExitInsTxt(APE_BAD_MSGID, msgid);
|
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}
|
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|
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/* read from NETMSG.DLL */
|
|
PrintNL();
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|
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//
|
|
// If PrintMessage can't find the message id, don't try the expl
|
|
//
|
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|
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if (PrintMessage(g_hStdOut, MESSAGE_FILENAME, err, StarStrings, 9) == NO_ERROR)
|
|
{
|
|
PrintNL();
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|
|
|
PrintMessageIfFound(g_hStdOut, HELP_MSG_FILENAME, err, StarStrings, 9);
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
* returns line from file (no CRLFs); returns NULL if EOF
|
|
*/
|
|
|
|
LPWSTR
|
|
fgetsW(
|
|
LPWSTR buf,
|
|
int len,
|
|
FILE *fh
|
|
)
|
|
{
|
|
int c = 0;
|
|
TCHAR *pch;
|
|
int cchline;
|
|
DWORD cchRead;
|
|
|
|
pch = buf;
|
|
cchline = 0;
|
|
|
|
if (ftell(fh) == 0)
|
|
{
|
|
fread(&c, sizeof(TCHAR), 1, fh);
|
|
|
|
if (c != 0xfeff)
|
|
{
|
|
//
|
|
// Help file isn't Unicode
|
|
//
|
|
|
|
ErrorExit(APE_HelpFileError);
|
|
}
|
|
}
|
|
|
|
while (TRUE)
|
|
{
|
|
/*
|
|
* for now read in the buffer in ANSI form until Unicode is more
|
|
* widely accepted - dee
|
|
*
|
|
*/
|
|
|
|
cchRead = fread(&c, sizeof(TCHAR), 1, fh);
|
|
|
|
//
|
|
// if there are no more characters, end the line
|
|
//
|
|
|
|
if (cchRead < 1)
|
|
{
|
|
c = EOF;
|
|
break;
|
|
}
|
|
|
|
//
|
|
// if we see a \r, we ignore it
|
|
//
|
|
|
|
if (c == TEXT('\r'))
|
|
continue;
|
|
|
|
//
|
|
// if we see a \n, we end the line
|
|
//
|
|
|
|
if (c == TEXT('\n')) {
|
|
*pch++ = (TCHAR) c;
|
|
break;
|
|
}
|
|
|
|
//
|
|
// if the char is not a tab, store it
|
|
//
|
|
|
|
if (c != TEXT('\t'))
|
|
{
|
|
*pch = (TCHAR) c;
|
|
pch++;
|
|
cchline++;
|
|
}
|
|
|
|
//
|
|
// if the line is too long, end it now
|
|
//
|
|
|
|
if (cchline >= len - 1) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
//
|
|
// end the line
|
|
//
|
|
|
|
*pch = (TCHAR) 0;
|
|
|
|
//
|
|
// return NULL at EOF with nothing read
|
|
//
|
|
|
|
return ((c == EOF) && (pch == buf)) ? NULL : buf;
|
|
}
|
|
|
|
|
|
//
|
|
// Build the fully qualified path name of a file that lives with the exe
|
|
// Used by LUI_GetHelpFileName
|
|
//
|
|
|
|
DWORD
|
|
GetFileName(
|
|
LPTSTR FileName,
|
|
DWORD BufferLength,
|
|
LPTSTR FilePartName
|
|
)
|
|
{
|
|
|
|
TCHAR ExeFileName[MAX_PATH + 1] = {0};
|
|
PTCHAR pch;
|
|
|
|
//
|
|
// Get the fully qualified path name of where the exe lives
|
|
//
|
|
|
|
if (!GetModuleFileName(NULL, ExeFileName, DIMENSION(ExeFileName) - 1))
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
//
|
|
// get rid of the file name part
|
|
//
|
|
|
|
pch = _tcsrchr(ExeFileName, '\\');
|
|
|
|
if (!pch)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
*(pch+1) = NULLC;
|
|
|
|
//
|
|
// Copy the path name into the string and add the help filename part
|
|
// but first make sure it's not too big for the user's buffer
|
|
//
|
|
|
|
if (_tcslen(ExeFileName) + _tcslen(FilePartName) + 1 > BufferLength)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
_tcscpy(FileName, ExeFileName);
|
|
_tcscat(FileName, FilePartName);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
//
|
|
// Get the help file name
|
|
//
|
|
|
|
DWORD
|
|
GetHelpFileName(
|
|
LPTSTR HelpFileName,
|
|
DWORD BufferLength
|
|
)
|
|
{
|
|
|
|
TCHAR LocalizedFileName[MAX_PATH];
|
|
DWORD LocalizedFileNameID;
|
|
switch(GetConsoleOutputCP()) {
|
|
case 932:
|
|
case 936:
|
|
case 949:
|
|
case 950:
|
|
LocalizedFileNameID = APE2_FE_NETCMD_HELP_FILE;
|
|
break;
|
|
default:
|
|
LocalizedFileNameID = APE2_US_NETCMD_HELP_FILE;
|
|
break;
|
|
}
|
|
|
|
if (LUI_GetMsg(LocalizedFileName, DIMENSION(LocalizedFileName),
|
|
LocalizedFileNameID))
|
|
{
|
|
return GetFileName(HelpFileName, BufferLength, TEXT("NET.HLP"));
|
|
}
|
|
else
|
|
{
|
|
return GetFileName(HelpFileName, BufferLength, LocalizedFileName);
|
|
}
|
|
}
|