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/* $Id: inputdos.c,v 1.2 2003/12/09 21:29:24 skaus Exp $
$Locker: $ $Name: $ $State: Exp $
Input a line via DOS-0A
This file bases on CMDINPUT.C of FreeCOM v0.81 beta 1.
$Log: inputdos.c,v $
Revision 1.2 2003/12/09 21:29:24 skaus
bugfix: Ask for FreeCOM location when STRINGS are missing [#687]
Revision 1.1 2001/04/12 00:33:53 skaus
chg: new structure
chg: If DEBUG enabled, no available commands are displayed on startup
fix: PTCHSIZE also patches min extra size to force to have this amount
of memory available on start
bugfix: CALL doesn't reset options
add: PTCHSIZE to patch heap size
add: VSPAWN, /SWAP switch, .SWP resource handling
bugfix: COMMAND.COM A:\
bugfix: CALL: if swapOnExec == ERROR, no change of swapOnExec allowed
add: command MEMORY
bugfix: runExtension(): destroys command[-2]
add: clean.bat
add: localized CRITER strings
chg: use LNG files for hard-coded strings (hangForEver(), init.c)
via STRINGS.LIB
add: DEL.C, COPY.C, CBREAK.C: STRINGS-based prompts
add: fixstrs.c: prompts & symbolic keys
add: fixstrs.c: backslash escape sequences
add: version IDs to DEFAULT.LNG and validation to FIXSTRS.C
chg: splitted code apart into LIB\*.c and CMD\*.c
bugfix: IF is now using error system & STRINGS to report errors
add: CALL: /N
*/
#include "../config.h"
#include <assert.h>
#include <dos.h>
#include <stdio.h>
#include <string.h>
#include "../include/command.h"
#if MAX_INTERNAL_COMMAND_SIZE > 253
#define CMD_SIZE 253
#else
#define CMD_SIZE MAX_INTERNAL_COMMAND_SIZE
#endif
static unsigned char iobuf[CMD_SIZE + 2] = { CMD_SIZE, '\0'};
void readcommandDOS(char * const str, int maxlen)
{ struct REGPACK r;
assert(str);
assert(maxlen);
iobuf[0] = (maxlen < CMD_SIZE)? maxlen: CMD_SIZE;
if(iobuf[1] > iobuf[0])
iobuf[1] = iobuf[0];
dprintf(("[CMDINPUT characters max:%u in:%u]\n", iobuf[0], iobuf[1]));
if(echo)
printprompt();
r.r_ax = 0xa00;
r.r_ds = FP_SEG(iobuf);
r.r_dx = FP_OFF(iobuf);
intr(0x21, &r);
dprintf(("[CMDINPUT characters max:%u out:%u]\n", iobuf[0], iobuf[1]));
if(iobuf[1]) /* could bug if == 0 */
memcpy(str, &iobuf[2], iobuf[1]);
str[iobuf[1]] = 0;
putchar('\n');
}
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