Bit8u DOS_FCBIncreaseSize(Bit16u seg,Bit16u offset) { DOS_FCB fcb(seg,offset); Bit8u fhandle,cur_rec; Bit16u cur_block,rec_size; fcb.GetSeqData(fhandle,rec_size); fcb.GetRecord(cur_block,cur_rec); Bit32u pos=((cur_block*128)+cur_rec)*rec_size; if (!DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET,true)) return FCB_ERR_WRITE; Bit16u towrite=0; if (!DOS_WriteFile(fhandle,dos_copybuf,&towrite,true)) return FCB_ERR_WRITE; Bit32u size; Bit16u date,time; fcb.GetSizeDateTime(size,date,time); if (pos+towrite>size) size=pos+towrite; //time doesn't keep track of endofday date = DOS_PackDate(dos.date.year,dos.date.month,dos.date.day); Bit32u ticks = mem_readd(BIOS_TIMER); Bit32u seconds = (ticks*10)/182; Bit16u hour = (Bit16u)(seconds/3600); Bit16u min = (Bit16u)((seconds % 3600)/60); Bit16u sec = (Bit16u)(seconds % 60); time = DOS_PackTime(hour,min,sec); Files[fhandle]->time = time; Files[fhandle]->date = date; fcb.SetSizeDateTime(size,date,time); fcb.SetRecord(cur_block,cur_rec); return FCB_SUCCESS; }
Bit8u DOS_FCBWrite(Bit16u seg,Bit16u offset,Bit16u recno) { DOS_FCB fcb(seg,offset); Bit8u fhandle,cur_rec;Bit16u cur_block,rec_size; fcb.GetSeqData(fhandle,rec_size); if (fhandle==0xff && rec_size!=0) { if (!DOS_FCBOpen(seg,offset)) return FCB_READ_NODATA; LOG(LOG_FCB,LOG_WARN)("Reopened closed FCB"); fcb.GetSeqData(fhandle,rec_size); } fcb.GetRecord(cur_block,cur_rec); Bit32u pos=((cur_block*128)+cur_rec)*rec_size; if (!DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET)) return FCB_ERR_WRITE; MEM_BlockRead(Real2Phys(dos.dta())+recno*rec_size,dos_copybuf,rec_size); Bit16u towrite=rec_size; if (!DOS_WriteFile(fhandle,dos_copybuf,&towrite)) return FCB_ERR_WRITE; Bit32u size;Bit16u date,time; fcb.GetSizeDateTime(size,date,time); if (pos+towrite>size) size=pos+towrite; //time doesn't keep track of endofday date = DOS_PackDate(dos.date.year,dos.date.month,dos.date.day); Bit32u ticks = mem_readd(BIOS_TIMER); Bit32u seconds = (ticks*10)/182; Bit16u hour = (Bit16u)(seconds/3600); Bit16u min = (Bit16u)((seconds % 3600)/60); Bit16u sec = (Bit16u)(seconds % 60); time = DOS_PackTime(hour,min,sec); Bit8u temp=RealHandle(fhandle); Files[temp]->time=time; Files[temp]->date=date; fcb.SetSizeDateTime(size,date,time); if (++cur_rec>127) { cur_block++;cur_rec=0; } fcb.SetRecord(cur_block,cur_rec); return FCB_SUCCESS; }
Bit8u DOS_FCBRead(Bit16u seg,Bit16u offset,Bit16u recno) { DOS_FCB fcb(seg,offset); Bit8u fhandle,cur_rec; Bit16u cur_block,rec_size; fcb.GetSeqData(fhandle,rec_size); if (fhandle==0xff && rec_size!=0) { if (!DOS_FCBOpen(seg,offset)) return FCB_READ_NODATA; LOG(LOG_FCB,LOG_WARN)("Reopened closed FCB"); fcb.GetSeqData(fhandle,rec_size); } if (rec_size == 0) { rec_size = 128; fcb.SetSeqData(fhandle,rec_size); } fcb.GetRecord(cur_block,cur_rec); Bit32u pos=((cur_block*128)+cur_rec)*rec_size; if (!DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET,true)) return FCB_READ_NODATA; Bit16u toread=rec_size; if (!DOS_ReadFile(fhandle,dos_copybuf,&toread,true)) return FCB_READ_NODATA; if (toread==0) return FCB_READ_NODATA; if (toread < rec_size) { //Zero pad copybuffer to rec_size Bitu i = toread; while(i < rec_size) dos_copybuf[i++] = 0; } MEM_BlockWrite(Real2Phys(dos.dta())+recno*rec_size,dos_copybuf,rec_size); if (++cur_rec>127) { cur_block++; cur_rec=0; } fcb.SetRecord(cur_block,cur_rec); if (toread==rec_size) return FCB_SUCCESS; if (toread==0) return FCB_READ_NODATA; return FCB_READ_PARTIAL; }
Bit8u DOS_FCBRead(Bit16u seg, Bit16u offset, Bit16u recno) { DOS_FCB fcb(seg, offset); Bit8u fhandle, cur_rec; Bit16u cur_block, rec_size; fcb.GetSeqData(fhandle, rec_size); fcb.GetRecord(cur_block, cur_rec); Bit32u pos = ((cur_block*128)+cur_rec)*rec_size; if (!DOS_SeekFile(fhandle, &pos, DOS_SEEK_SET)) return FCB_READ_NODATA; Bit16u toread = rec_size; if (!DOS_ReadFile(fhandle, dos_copybuf, &toread) || toread == 0) return FCB_READ_NODATA; if (toread < rec_size) // Zero pad copybuffer to rec_size memset(dos_copybuf+toread, 0, rec_size-toread); vPC_rBlockWrite(dWord2Ptr(dos.dta())+recno*rec_size, dos_copybuf, rec_size); if (++cur_rec > 127) { cur_block++; cur_rec = 0; } fcb.SetRecord(cur_block, cur_rec); if (toread == rec_size) return FCB_SUCCESS; return FCB_READ_PARTIAL; }
bool BatchFile::Goto(char * where) { //Open bat file and search for the where string if (!DOS_OpenFile(filename.c_str(),128,&file_handle)) { LOG(LOG_MISC,LOG_ERROR)("SHELL:Goto Can't open BatchFile %s",filename.c_str()); delete this; return false; } char cmd_buffer[CMD_MAXLINE]; char * cmd_write; /* Scan till we have a match or return false */ Bit8u c;Bit16u n; again: cmd_write=cmd_buffer; do { n=1; DOS_ReadFile(file_handle,&c,&n); if (n>0) { if (c>31) { if (((cmd_write - cmd_buffer) + 1) < (CMD_MAXLINE - 1)) *cmd_write++ = c; } } } while (c!='\n' && n); *cmd_write++ = 0; char *nospace = trim(cmd_buffer); if (nospace[0] == ':') { nospace++; //Skip : //Strip spaces and = from it. while(*nospace && (isspace(*reinterpret_cast<unsigned char*>(nospace)) || (*nospace == '='))) nospace++; //label is until space/=/eol char* const beginlabel = nospace; while(*nospace && !isspace(*reinterpret_cast<unsigned char*>(nospace)) && (*nospace != '=')) nospace++; *nospace = 0; if (strcasecmp(beginlabel,where)==0) { //Found it! Store location and continue this->location = 0; DOS_SeekFile(file_handle,&(this->location),DOS_SEEK_CUR); DOS_CloseFile(file_handle); return true; } } if (!n) { DOS_CloseFile(file_handle); delete this; return false; } goto again; return false; }
Bit8u DOS_FCBWrite(Bit16u seg, Bit16u offset, Bit16u recno) { DOS_FCB fcb(seg, offset); Bit8u fhandle, cur_rec; Bit16u cur_block, rec_size; fcb.GetSeqData(fhandle, rec_size); fcb.GetRecord(cur_block, cur_rec); Bit32u pos=((cur_block*128)+cur_rec)*rec_size; if (!DOS_SeekFile(fhandle, &pos, DOS_SEEK_SET)) return FCB_ERR_WRITE; vPC_rBlockRead(dWord2Ptr(dos.dta())+recno*rec_size, dos_copybuf, rec_size); Bit16u towrite = rec_size; if (!DOS_WriteFile(fhandle, dos_copybuf, &towrite)) return FCB_ERR_WRITE; Bit32u size; Bit16u date, time; fcb.GetSizeDateTime(size, date, time); if (pos+towrite > size) size = pos+towrite; date = DOS_PackDate(dos.date.year, dos.date.month, dos.date.day); // Ttime doesn't keep track of endofday Bit32u ticks = vPC_rLodsd(BIOS_TIMER); Bit32u seconds = (ticks*10)/182; Bit16u hour = (Bit16u)(seconds/3600); Bit16u min = (Bit16u)((seconds % 3600)/60); Bit16u sec = (Bit16u)(seconds % 60); time = DOS_PackTime(hour, min, sec); Bit8u temp = RealHandle(fhandle); Files[temp]->time = time; Files[temp]->date = date; fcb.SetSizeDateTime(size, date, time); if (++cur_rec > 127) { cur_block++; cur_rec = 0; } fcb.SetRecord(cur_block, cur_rec); return FCB_SUCCESS; }
bool DOS_Execute(char * name,PhysPt block_pt,Bit8u flags) { EXE_Header head;Bitu i; Bit16u fhandle;Bit16u len;Bit32u pos; Bit16u pspseg,envseg,loadseg,memsize,readsize; PhysPt loadaddress;RealPt relocpt; Bitu headersize,imagesize; DOS_ParamBlock block(block_pt); block.LoadData(); if (flags!=LOADNGO && flags!=OVERLAY && flags!=LOAD) { E_Exit("DOS:Not supported execute mode %d for file %s",flags,name); } /* Check for EXE or COM File */ bool iscom=false; if (!DOS_OpenFile(name,OPEN_READ,&fhandle)) return false; len=sizeof(EXE_Header); if (!DOS_ReadFile(fhandle,(Bit8u *)&head,&len)) { DOS_CloseFile(fhandle); return false; } if (len<sizeof(EXE_Header)) { if (len==0) { /* Prevent executing zero byte files */ DOS_SetError(DOSERR_ACCESS_DENIED); DOS_CloseFile(fhandle); return false; } /* Otherwise must be a .com file */ iscom=true; } else { /* Convert the header to correct endian, i hope this works */ HostPt endian=(HostPt)&head; for (i=0;i<sizeof(EXE_Header)/2;i++) { *((Bit16u *)endian)=host_readw(endian); endian+=2; } if ((head.signature!=MAGIC1) && (head.signature!=MAGIC2)) iscom=true; else { if(head.pages & ~0x07ff) /* 1 MB dos maximum address limit. Fixes TC3 IDE (kippesoep) */ LOG(LOG_EXEC,LOG_NORMAL)("Weird header: head.pages > 1 MB"); head.pages&=0x07ff; headersize = head.headersize*16; imagesize = head.pages*512-headersize; if (imagesize+headersize<512) imagesize = 512-headersize; } } Bit8u * loadbuf=(Bit8u *)new Bit8u[0x10000]; if (flags!=OVERLAY) { /* Create an environment block */ envseg=block.exec.envseg; if (!MakeEnv(name,&envseg)) { DOS_CloseFile(fhandle); return false; } /* Get Memory */ Bit16u minsize,maxsize;Bit16u maxfree=0xffff;DOS_AllocateMemory(&pspseg,&maxfree); if (iscom) { minsize=0x1000;maxsize=0xffff; if (machine==MCH_PCJR) { /* try to load file into memory below 96k */ pos=0;DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET); Bit16u dataread=0x1800; DOS_ReadFile(fhandle,loadbuf,&dataread); if (dataread<0x1800) maxsize=dataread; if (minsize>maxsize) minsize=maxsize; } } else { /* Exe size calculated from header */ minsize=long2para(imagesize+(head.minmemory<<4)+256); if (head.maxmemory!=0) maxsize=long2para(imagesize+(head.maxmemory<<4)+256); else maxsize=0xffff; } if (maxfree<minsize) { DOS_SetError(DOSERR_INSUFFICIENT_MEMORY); DOS_FreeMemory(envseg); return false; } if (maxfree<maxsize) memsize=maxfree; else memsize=maxsize; if (!DOS_AllocateMemory(&pspseg,&memsize)) E_Exit("DOS:Exec error in memory"); if (iscom && (machine==MCH_PCJR) && (pspseg<0x2000)) { maxsize=0xffff; /* resize to full extent of memory block */ DOS_ResizeMemory(pspseg,&maxsize); /* now try to lock out memory above segment 0x2000 */ if ((real_readb(0x2000,0)==0x5a) && (real_readw(0x2000,1)==0) && (real_readw(0x2000,3)==0x7ffe)) { /* MCB after PCJr graphics memory region is still free */ if (pspseg+maxsize==0x17ff) { DOS_MCB cmcb((Bit16u)(pspseg-1)); cmcb.SetType(0x5a); // last block } } } loadseg=pspseg+16; if (!iscom) { /* Check if requested to load program into upper part of allocated memory */ if ((head.minmemory == 0) && (head.maxmemory == 0)) loadseg = ((pspseg+memsize)*0x10-imagesize)/0x10; } } else loadseg=block.overlay.loadseg; /* Load the executable */ loadaddress=PhysMake(loadseg,0); if (iscom) { /* COM Load 64k - 256 bytes max */ pos=0;DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET); readsize=0xffff-256; DOS_ReadFile(fhandle,loadbuf,&readsize); MEM_BlockWrite(loadaddress,loadbuf,readsize); } else { /* EXE Load in 32kb blocks and then relocate */ pos=headersize;DOS_SeekFile(fhandle,&pos,DOS_SEEK_SET); while (imagesize>0x7FFF) { readsize=0x8000;DOS_ReadFile(fhandle,loadbuf,&readsize); MEM_BlockWrite(loadaddress,loadbuf,readsize); // if (readsize!=0x8000) LOG(LOG_EXEC,LOG_NORMAL)("Illegal header"); loadaddress+=0x8000;imagesize-=0x8000; } if (imagesize>0) { readsize=(Bit16u)imagesize;DOS_ReadFile(fhandle,loadbuf,&readsize); MEM_BlockWrite(loadaddress,loadbuf,readsize); // if (readsize!=imagesize) LOG(LOG_EXEC,LOG_NORMAL)("Illegal header"); } /* Relocate the exe image */ Bit16u relocate; if (flags==OVERLAY) relocate=block.overlay.relocation; else relocate=loadseg; pos=head.reloctable;DOS_SeekFile(fhandle,&pos,0); for (i=0;i<head.relocations;i++) { readsize=4;DOS_ReadFile(fhandle,(Bit8u *)&relocpt,&readsize); relocpt=host_readd((HostPt)&relocpt); //Endianize PhysPt address=PhysMake(RealSeg(relocpt)+loadseg,RealOff(relocpt)); mem_writew(address,mem_readw(address)+relocate); } } delete[] loadbuf; DOS_CloseFile(fhandle); /* Setup a psp */ if (flags!=OVERLAY) { // Create psp after closing exe, to avoid dead file handle of exe in copied psp SetupPSP(pspseg,memsize,envseg); SetupCMDLine(pspseg,block); }; CALLBACK_SCF(false); /* Carry flag cleared for caller if successfull */ if (flags==OVERLAY) return true; /* Everything done for overlays */ RealPt csip,sssp; if (iscom) { csip=RealMake(pspseg,0x100); sssp=RealMake(pspseg,0xfffe); mem_writew(PhysMake(pspseg,0xfffe),0); } else { csip=RealMake(loadseg+head.initCS,head.initIP); sssp=RealMake(loadseg+head.initSS,head.initSP); } if (flags==LOAD) { DOS_PSP callpsp(dos.psp()); /* Save the SS:SP on the PSP of calling program */ callpsp.SetStack(RealMakeSeg(ss,reg_sp)); /* Switch the psp's */ dos.psp(pspseg); DOS_PSP newpsp(dos.psp()); dos.dta(RealMake(newpsp.GetSegment(),0x80)); block.exec.initsssp = sssp; block.exec.initcsip = csip; block.SaveData(); return true; } if (flags==LOADNGO) { /* Get Caller's program CS:IP of the stack and set termination address to that */ RealSetVec(0x22,RealMake(mem_readw(SegPhys(ss)+reg_sp+2),mem_readw(SegPhys(ss)+reg_sp))); SaveRegisters(); DOS_PSP callpsp(dos.psp()); /* Save the SS:SP on the PSP of calling program */ callpsp.SetStack(RealMakeSeg(ss,reg_sp)); /* Switch the psp's and set new DTA */ dos.psp(pspseg); DOS_PSP newpsp(dos.psp()); dos.dta(RealMake(newpsp.GetSegment(),0x80)); /* save vectors */ newpsp.SaveVectors(); /* copy fcbs */ newpsp.SetFCB1(block.exec.fcb1); newpsp.SetFCB2(block.exec.fcb2); /* Set the stack for new program */ SegSet16(ss,RealSeg(sssp));reg_sp=RealOff(sssp); /* Add some flags and CS:IP on the stack for the IRET */ reg_sp-=6; mem_writew(SegPhys(ss)+reg_sp+0,RealOff(csip)); mem_writew(SegPhys(ss)+reg_sp+2,RealSeg(csip)); /* DOS starts programs with a RETF, so our IRET should not modify critical flags (IOPL in v86 mode); interrupt flag is set explicitly, test flags cleared */ mem_writew(SegPhys(ss)+reg_sp+4,(reg_flags&(~FMASK_TEST))|FLAG_IF); /* Setup the rest of the registers */ reg_ax=reg_bx=0;reg_cx=0xff; reg_dx=pspseg; reg_si=RealOff(csip); reg_di=RealOff(sssp); reg_bp=0x91c; /* DOS internal stack begin relict */ SegSet16(ds,pspseg);SegSet16(es,pspseg); #if C_DEBUG /* Started from debug.com, then set breakpoint at start */ DEBUG_CheckExecuteBreakpoint(RealSeg(csip),RealOff(csip)); #endif /* Add the filename to PSP and environment MCB's */ char stripname[8];Bitu index=0; while (char chr=*name++) { switch (chr) { case ':':case '\\':case '/':index=0;break; default:if (index<8) stripname[index++]=toupper(chr); } } index=0; while (index<8) { if (stripname[index]=='.') break; if (!stripname[index]) break; index++; } memset(&stripname[index],0,8-index); DOS_MCB pspmcb(dos.psp()-1); pspmcb.SetFileName(stripname); DOS_UpdatePSPName(); return true; } return false; }
void DOS_Shell::ParseLine(char * line) { LOG(LOG_EXEC,LOG_ERROR)("Parsing command line: %s",line); /* Check for a leading @ */ if (line[0] == '@') line[0] = ' '; line = trim(line); /* Do redirection and pipe checks */ char * in = 0; char * out = 0; Bit16u dummy,dummy2; Bit32u bigdummy = 0; Bitu num = 0; /* Number of commands in this line */ bool append; bool normalstdin = false; /* wether stdin/out are open on start. */ bool normalstdout = false; /* Bug: Assumed is they are "con" */ num = GetRedirection(line,&in, &out,&append); if (num>1) LOG_MSG("SHELL:Multiple command on 1 line not supported"); if (in || out) { normalstdin = (psp->GetFileHandle(0) != 0xff); normalstdout = (psp->GetFileHandle(1) != 0xff); } if (in) { if(DOS_OpenFile(in,OPEN_READ,&dummy)) { //Test if file exists DOS_CloseFile(dummy); LOG_MSG("SHELL:Redirect input from %s",in); if(normalstdin) DOS_CloseFile(0); //Close stdin DOS_OpenFile(in,OPEN_READ,&dummy); //Open new stdin } } if (out){ LOG_MSG("SHELL:Redirect output to %s",out); if(normalstdout) DOS_CloseFile(1); if(!normalstdin && !in) DOS_OpenFile("con",OPEN_READWRITE,&dummy); bool status = true; /* Create if not exist. Open if exist. Both in read/write mode */ if(append) { if( (status = DOS_OpenFile(out,OPEN_READWRITE,&dummy)) ) { DOS_SeekFile(1,&bigdummy,DOS_SEEK_END); } else { status = DOS_CreateFile(out,DOS_ATTR_ARCHIVE,&dummy); //Create if not exists. } } else { status = DOS_OpenFileExtended(out,OPEN_READWRITE,DOS_ATTR_ARCHIVE,0x12,&dummy,&dummy2); } if(!status && normalstdout) DOS_OpenFile("con",OPEN_READWRITE,&dummy); //Read only file, open con again if(!normalstdin && !in) DOS_CloseFile(0); } /* Run the actual command */ DoCommand(line); /* Restore handles */ if(in) { DOS_CloseFile(0); if(normalstdin) DOS_OpenFile("con",OPEN_READWRITE,&dummy); free(in); } if(out) { DOS_CloseFile(1); if(!normalstdin) DOS_OpenFile("con",OPEN_READWRITE,&dummy); if(normalstdout) DOS_OpenFile("con",OPEN_READWRITE,&dummy); if(!normalstdin) DOS_CloseFile(0); free(out); } }
static Bitu DOS_21Handler(void) { if (((reg_ah != 0x50) && (reg_ah != 0x51) && (reg_ah != 0x62) && (reg_ah != 0x64)) && (reg_ah<0x6c)) { DOS_PSP psp(dos.psp()); psp.SetStack(RealMake(SegValue(ss),reg_sp-18)); } char name1[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII]; char name2[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII]; static Bitu time_start = 0; //For emulating temporary time changes. switch (reg_ah) { case 0x00: /* Terminate Program */ DOS_Terminate(mem_readw(SegPhys(ss)+reg_sp+2),false,0); break; case 0x01: /* Read character from STDIN, with echo */ { Bit8u c;Bit16u n=1; dos.echo=true; DOS_ReadFile(STDIN,&c,&n); reg_al=c; dos.echo=false; } break; case 0x02: /* Write character to STDOUT */ { Bit8u c=reg_dl;Bit16u n=1; DOS_WriteFile(STDOUT,&c,&n); //Not in the official specs, but happens nonetheless. (last written character) reg_al = c;// reg_al=(c==9)?0x20:c; //Officially: tab to spaces } break; case 0x03: /* Read character from STDAUX */ { Bit16u port = real_readw(0x40,0); if(port!=0 && serialports[0]) { Bit8u status; // RTS/DTR on IO_WriteB(port+4,0x3); serialports[0]->Getchar(®_al, &status, true, 0xFFFFFFFF); } } break; case 0x04: /* Write Character to STDAUX */ { Bit16u port = real_readw(0x40,0); if(port!=0 && serialports[0]) { // RTS/DTR on IO_WriteB(port+4,0x3); serialports[0]->Putchar(reg_dl,true,true, 0xFFFFFFFF); // RTS off IO_WriteB(port+4,0x1); } } break; case 0x05: /* Write Character to PRINTER */ E_Exit("DOS:Unhandled call %02X",reg_ah); break; case 0x06: /* Direct Console Output / Input */ switch (reg_dl) { case 0xFF: /* Input */ { //Simulate DOS overhead for timing sensitive games //MM1 overhead(); //TODO Make this better according to standards if (!DOS_GetSTDINStatus()) { reg_al=0; CALLBACK_SZF(true); break; } Bit8u c;Bit16u n=1; DOS_ReadFile(STDIN,&c,&n); reg_al=c; CALLBACK_SZF(false); break; } default: { Bit8u c = reg_dl;Bit16u n = 1; DOS_WriteFile(STDOUT,&c,&n); reg_al = reg_dl; } break; }; break; case 0x07: /* Character Input, without echo */ { Bit8u c;Bit16u n=1; DOS_ReadFile (STDIN,&c,&n); reg_al=c; break; }; case 0x08: /* Direct Character Input, without echo (checks for breaks officially :)*/ { Bit8u c;Bit16u n=1; DOS_ReadFile (STDIN,&c,&n); reg_al=c; break; }; case 0x09: /* Write string to STDOUT */ { Bit8u c;Bit16u n=1; PhysPt buf=SegPhys(ds)+reg_dx; while ((c=mem_readb(buf++))!='$') { DOS_WriteFile(STDOUT,&c,&n); } } break; case 0x0a: /* Buffered Input */ { //TODO ADD Break checkin in STDIN but can't care that much for it PhysPt data=SegPhys(ds)+reg_dx; Bit8u free=mem_readb(data); Bit8u read=0;Bit8u c;Bit16u n=1; if (!free) break; free--; for(;;) { DOS_ReadFile(STDIN,&c,&n); if (c == 8) { // Backspace if (read) { //Something to backspace. // STDOUT treats backspace as non-destructive. DOS_WriteFile(STDOUT,&c,&n); c = ' '; DOS_WriteFile(STDOUT,&c,&n); c = 8; DOS_WriteFile(STDOUT,&c,&n); --read; } continue; } if (read == free && c != 13) { // Keyboard buffer full Bit8u bell = 7; DOS_WriteFile(STDOUT, &bell, &n); continue; } DOS_WriteFile(STDOUT,&c,&n); mem_writeb(data+read+2,c); if (c==13) break; read++; }; mem_writeb(data+1,read); break; }; case 0x0b: /* Get STDIN Status */ if (!DOS_GetSTDINStatus()) {reg_al=0x00;} else {reg_al=0xFF;} //Simulate some overhead for timing issues //Tankwar menu (needs maybe even more) overhead(); break; case 0x0c: /* Flush Buffer and read STDIN call */ { /* flush buffer if STDIN is CON */ Bit8u handle=RealHandle(STDIN); if (handle!=0xFF && Files[handle] && Files[handle]->IsName("CON")) { Bit8u c;Bit16u n; while (DOS_GetSTDINStatus()) { n=1; DOS_ReadFile(STDIN,&c,&n); } } switch (reg_al) { case 0x1: case 0x6: case 0x7: case 0x8: case 0xa: { Bit8u oldah=reg_ah; reg_ah=reg_al; DOS_21Handler(); reg_ah=oldah; } break; default: // LOG_ERROR("DOS:0C:Illegal Flush STDIN Buffer call %d",reg_al); reg_al=0; break; } } break; //TODO Find out the values for when reg_al!=0 //TODO Hope this doesn't do anything special case 0x0d: /* Disk Reset */ //Sure let's reset a virtual disk break; case 0x0e: /* Select Default Drive */ DOS_SetDefaultDrive(reg_dl); reg_al=DOS_DRIVES; break; case 0x0f: /* Open File using FCB */ if(DOS_FCBOpen(SegValue(ds),reg_dx)){ reg_al=0; }else{ reg_al=0xff; } LOG(LOG_FCB,LOG_NORMAL)("DOS:0x0f FCB-fileopen used, result:al=%d",reg_al); break; case 0x10: /* Close File using FCB */ if(DOS_FCBClose(SegValue(ds),reg_dx)){ reg_al=0; }else{ reg_al=0xff; } LOG(LOG_FCB,LOG_NORMAL)("DOS:0x10 FCB-fileclose used, result:al=%d",reg_al); break; case 0x11: /* Find First Matching File using FCB */ if(DOS_FCBFindFirst(SegValue(ds),reg_dx)) reg_al = 0x00; else reg_al = 0xFF; LOG(LOG_FCB,LOG_NORMAL)("DOS:0x11 FCB-FindFirst used, result:al=%d",reg_al); break; case 0x12: /* Find Next Matching File using FCB */ if(DOS_FCBFindNext(SegValue(ds),reg_dx)) reg_al = 0x00; else reg_al = 0xFF; LOG(LOG_FCB,LOG_NORMAL)("DOS:0x12 FCB-FindNext used, result:al=%d",reg_al); break; case 0x13: /* Delete File using FCB */ if (DOS_FCBDeleteFile(SegValue(ds),reg_dx)) reg_al = 0x00; else reg_al = 0xFF; LOG(LOG_FCB,LOG_NORMAL)("DOS:0x16 FCB-Delete used, result:al=%d",reg_al); break; case 0x14: /* Sequential read from FCB */ reg_al = DOS_FCBRead(SegValue(ds),reg_dx,0); LOG(LOG_FCB,LOG_NORMAL)("DOS:0x14 FCB-Read used, result:al=%d",reg_al); break; case 0x15: /* Sequential write to FCB */ reg_al=DOS_FCBWrite(SegValue(ds),reg_dx,0); LOG(LOG_FCB,LOG_NORMAL)("DOS:0x15 FCB-Write used, result:al=%d",reg_al); break; case 0x16: /* Create or truncate file using FCB */ if (DOS_FCBCreate(SegValue(ds),reg_dx)) reg_al = 0x00; else reg_al = 0xFF; LOG(LOG_FCB,LOG_NORMAL)("DOS:0x16 FCB-Create used, result:al=%d",reg_al); break; case 0x17: /* Rename file using FCB */ if (DOS_FCBRenameFile(SegValue(ds),reg_dx)) reg_al = 0x00; else reg_al = 0xFF; break; case 0x1b: /* Get allocation info for default drive */ if (!DOS_GetAllocationInfo(0,®_cx,®_al,®_dx)) reg_al=0xff; break; case 0x1c: /* Get allocation info for specific drive */ if (!DOS_GetAllocationInfo(reg_dl,®_cx,®_al,®_dx)) reg_al=0xff; break; case 0x21: /* Read random record from FCB */ { Bit16u toread=1; reg_al = DOS_FCBRandomRead(SegValue(ds),reg_dx,&toread,true); } LOG(LOG_FCB,LOG_NORMAL)("DOS:0x21 FCB-Random read used, result:al=%d",reg_al); break; case 0x22: /* Write random record to FCB */ { Bit16u towrite=1; reg_al=DOS_FCBRandomWrite(SegValue(ds),reg_dx,&towrite,true); } LOG(LOG_FCB,LOG_NORMAL)("DOS:0x22 FCB-Random write used, result:al=%d",reg_al); break; case 0x23: /* Get file size for FCB */ if (DOS_FCBGetFileSize(SegValue(ds),reg_dx)) reg_al = 0x00; else reg_al = 0xFF; break; case 0x24: /* Set Random Record number for FCB */ DOS_FCBSetRandomRecord(SegValue(ds),reg_dx); break; case 0x27: /* Random block read from FCB */ reg_al = DOS_FCBRandomRead(SegValue(ds),reg_dx,®_cx,false); LOG(LOG_FCB,LOG_NORMAL)("DOS:0x27 FCB-Random(block) read used, result:al=%d",reg_al); break; case 0x28: /* Random Block write to FCB */ reg_al=DOS_FCBRandomWrite(SegValue(ds),reg_dx,®_cx,false); LOG(LOG_FCB,LOG_NORMAL)("DOS:0x28 FCB-Random(block) write used, result:al=%d",reg_al); break; case 0x29: /* Parse filename into FCB */ { Bit8u difference; char string[1024]; MEM_StrCopy(SegPhys(ds)+reg_si,string,1023); // 1024 toasts the stack reg_al=FCB_Parsename(SegValue(es),reg_di,reg_al ,string, &difference); reg_si+=difference; } LOG(LOG_FCB,LOG_NORMAL)("DOS:29:FCB Parse Filename, result:al=%d",reg_al); break; case 0x19: /* Get current default drive */ reg_al=DOS_GetDefaultDrive(); break; case 0x1a: /* Set Disk Transfer Area Address */ dos.dta(RealMakeSeg(ds,reg_dx)); break; case 0x25: /* Set Interrupt Vector */ RealSetVec(reg_al,RealMakeSeg(ds,reg_dx)); break; case 0x26: /* Create new PSP */ DOS_NewPSP(reg_dx,DOS_PSP(dos.psp()).GetSize()); reg_al=0xf0; /* al destroyed */ break; case 0x2a: /* Get System Date */ { reg_ax=0; // get time CALLBACK_RunRealInt(0x1a); if(reg_al) DOS_AddDays(reg_al); int a = (14 - dos.date.month)/12; int y = dos.date.year - a; int m = dos.date.month + 12*a - 2; reg_al=(dos.date.day+y+(y/4)-(y/100)+(y/400)+(31*m)/12) % 7; reg_cx=dos.date.year; reg_dh=dos.date.month; reg_dl=dos.date.day; } break; case 0x2b: /* Set System Date */ if (reg_cx<1980) { reg_al=0xff;break;} if ((reg_dh>12) || (reg_dh==0)) { reg_al=0xff;break;} if (reg_dl==0) { reg_al=0xff;break;} if (reg_dl>DOS_DATE_months[reg_dh]) { if(!((reg_dh==2)&&(reg_cx%4 == 0)&&(reg_dl==29))) // february pass { reg_al=0xff;break; } } dos.date.year=reg_cx; dos.date.month=reg_dh; dos.date.day=reg_dl; reg_al=0; break; case 0x2c: { /* Get System Time */ reg_ax=0; // get time CALLBACK_RunRealInt(0x1a); if(reg_al) DOS_AddDays(reg_al); reg_ah=0x2c; Bitu ticks=((Bitu)reg_cx<<16)|reg_dx; if(time_start<=ticks) ticks-=time_start; Bitu time=(Bitu)((100.0/((double)PIT_TICK_RATE/65536.0)) * (double)ticks); reg_dl=(Bit8u)((Bitu)time % 100); // 1/100 seconds time/=100; reg_dh=(Bit8u)((Bitu)time % 60); // seconds time/=60; reg_cl=(Bit8u)((Bitu)time % 60); // minutes time/=60; reg_ch=(Bit8u)((Bitu)time % 24); // hours //Simulate DOS overhead for timing-sensitive games //Robomaze 2 overhead(); break; } case 0x2d: /* Set System Time */ LOG(LOG_DOSMISC,LOG_ERROR)("DOS:Set System Time not supported"); //Check input parameters nonetheless if( reg_ch > 23 || reg_cl > 59 || reg_dh > 59 || reg_dl > 99 ) reg_al = 0xff; else { //Allow time to be set to zero. Restore the orginal time for all other parameters. (QuickBasic) if (reg_cx == 0 && reg_dx == 0) {time_start = mem_readd(BIOS_TIMER);LOG_MSG("Warning: game messes with DOS time!");} else time_start = 0; reg_al = 0; } break; case 0x2e: /* Set Verify flag */ dos.verify=(reg_al==1); break; case 0x2f: /* Get Disk Transfer Area */ SegSet16(es,RealSeg(dos.dta())); reg_bx=RealOff(dos.dta()); break; case 0x30: /* Get DOS Version */ if (reg_al==0) reg_bh=0xFF; /* Fake Microsoft DOS */ if (reg_al==1) reg_bh=0x10; /* DOS is in HMA */ reg_al=dos.version.major; reg_ah=dos.version.minor; /* Serialnumber */ reg_bl=0x00; reg_cx=0x0000; break; case 0x31: /* Terminate and stay resident */ // Important: This service does not set the carry flag! DOS_ResizeMemory(dos.psp(),®_dx); DOS_Terminate(dos.psp(),true,reg_al); break; case 0x1f: /* Get drive parameter block for default drive */ case 0x32: /* Get drive parameter block for specific drive */ { /* Officially a dpb should be returned as well. The disk detection part is implemented */ Bit8u drive=reg_dl; if (!drive || reg_ah==0x1f) drive = DOS_GetDefaultDrive(); else drive--; if (Drives[drive]) { reg_al = 0x00; SegSet16(ds,dos.tables.dpb); reg_bx = drive;//Faking only the first entry (that is the driveletter) LOG(LOG_DOSMISC,LOG_ERROR)("Get drive parameter block."); } else { reg_al=0xff; } } break; case 0x33: /* Extended Break Checking */ switch (reg_al) { case 0:reg_dl=dos.breakcheck;break; /* Get the breakcheck flag */ case 1:dos.breakcheck=(reg_dl>0);break; /* Set the breakcheck flag */ case 2:{bool old=dos.breakcheck;dos.breakcheck=(reg_dl>0);reg_dl=old;}break; case 3: /* Get cpsw */ /* Fallthrough */ case 4: /* Set cpsw */ LOG(LOG_DOSMISC,LOG_ERROR)("Someone playing with cpsw %x",reg_ax); break; case 5:reg_dl=3;break;//TODO should be z /* Always boot from c: :) */ case 6: /* Get true version number */ reg_bl=dos.version.major; reg_bh=dos.version.minor; reg_dl=dos.version.revision; reg_dh=0x10; /* Dos in HMA */ break; default: LOG(LOG_DOSMISC,LOG_ERROR)("Weird 0x33 call %2X",reg_al); reg_al =0xff; break; } break; case 0x34: /* Get INDos Flag */ SegSet16(es,DOS_SDA_SEG); reg_bx=DOS_SDA_OFS + 0x01; break; case 0x35: /* Get interrupt vector */ reg_bx=real_readw(0,((Bit16u)reg_al)*4); SegSet16(es,real_readw(0,((Bit16u)reg_al)*4+2)); break; case 0x36: /* Get Free Disk Space */ { Bit16u bytes,clusters,free; Bit8u sectors; if (DOS_GetFreeDiskSpace(reg_dl,&bytes,§ors,&clusters,&free)) { reg_ax=sectors; reg_bx=free; reg_cx=bytes; reg_dx=clusters; } else { Bit8u drive=reg_dl; if (drive==0) drive=DOS_GetDefaultDrive(); else drive--; if (drive<2) { // floppy drive, non-present drivesdisks issue floppy check through int24 // (critical error handler); needed for Mixed up Mother Goose (hook) // CALLBACK_RunRealInt(0x24); } reg_ax=0xffff; // invalid drive specified } } break; case 0x37: /* Get/Set Switch char Get/Set Availdev thing */ //TODO Give errors for these functions to see if anyone actually uses this shit- switch (reg_al) { case 0: reg_al=0;reg_dl=0x2f;break; /* always return '/' like dos 5.0+ */ case 1: reg_al=0;break; case 2: reg_al=0;reg_dl=0x2f;break; case 3: reg_al=0;break; }; LOG(LOG_MISC,LOG_ERROR)("DOS:0x37:Call for not supported switchchar"); break; case 0x38: /* Set Country Code */ if (reg_al==0) { /* Get country specidic information */ PhysPt dest = SegPhys(ds)+reg_dx; MEM_BlockWrite(dest,dos.tables.country,0x18); reg_ax = reg_bx = 0x01; CALLBACK_SCF(false); break; } else { /* Set country code */ LOG(LOG_MISC,LOG_ERROR)("DOS:Setting country code not supported"); } CALLBACK_SCF(true); break; case 0x39: /* MKDIR Create directory */ MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF); if (DOS_MakeDir(name1)) { reg_ax=0x05; /* ax destroyed */ CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } break; case 0x3a: /* RMDIR Remove directory */ MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF); if (DOS_RemoveDir(name1)) { reg_ax=0x05; /* ax destroyed */ CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); LOG(LOG_MISC,LOG_NORMAL)("Remove dir failed on %s with error %X",name1,dos.errorcode); } break; case 0x3b: /* CHDIR Set current directory */ MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF); if (DOS_ChangeDir(name1)) { reg_ax=0x00; /* ax destroyed */ CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } break; case 0x3c: /* CREATE Create of truncate file */ MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF); if (DOS_CreateFile(name1,reg_cx,®_ax)) { CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } break; case 0x3d: /* OPEN Open existing file */ MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF); if (DOS_OpenFile(name1,reg_al,®_ax)) { CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } break; case 0x3e: /* CLOSE Close file */ if (DOS_CloseFile(reg_bx)) { // reg_al=0x01; /* al destroyed. Refcount */ CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } break; case 0x3f: /* READ Read from file or device */ { Bit16u toread=reg_cx; dos.echo=true; if (DOS_ReadFile(reg_bx,dos_copybuf,&toread)) { MEM_BlockWrite(SegPhys(ds)+reg_dx,dos_copybuf,toread); reg_ax=toread; CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } modify_cycles(reg_ax); dos.echo=false; break; } case 0x40: /* WRITE Write to file or device */ { Bit16u towrite=reg_cx; MEM_BlockRead(SegPhys(ds)+reg_dx,dos_copybuf,towrite); if (DOS_WriteFile(reg_bx,dos_copybuf,&towrite)) { reg_ax=towrite; CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } modify_cycles(reg_ax); break; }; case 0x41: /* UNLINK Delete file */ MEM_StrCopy(SegPhys(ds)+reg_dx,name1,DOSNAMEBUF); if (DOS_UnlinkFile(name1)) { CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } break; case 0x42: /* LSEEK Set current file position */ { Bit32u pos=(reg_cx<<16) + reg_dx; if (DOS_SeekFile(reg_bx,&pos,reg_al)) { reg_dx=(Bit16u)(pos >> 16); reg_ax=(Bit16u)(pos & 0xFFFF); CALLBACK_SCF(false); } else { reg_ax=dos.errorcode; CALLBACK_SCF(true); } break; }
bool BatchFile::ReadLine(char * line) { //Open the batchfile and seek to stored postion if (!DOS_OpenFile(filename.c_str(),(DOS_NOT_INHERIT|OPEN_READ),&file_handle)) { LOG(LOG_MISC,LOG_ERROR)("ReadLine Can't open BatchFile %s",filename.c_str()); delete this; return false; } DOS_SeekFile(file_handle,&(this->location),DOS_SEEK_SET); Bit8u c=0;Bit16u n=1; char temp[CMD_MAXLINE]; emptyline: char * cmd_write=temp; do { n=1; DOS_ReadFile(file_handle,&c,&n); if (n>0) { /* Why are we filtering this ? * Exclusion list: tab for batch files * escape for ansi * backspace for alien odyssey */ if (c>31 || c==0x1b || c=='\t' || c==8) { //Only add it if room for it (and trailing zero) in the buffer, but do the check here instead at the end //So we continue reading till EOL/EOF if (((cmd_write - temp) + 1) < (CMD_MAXLINE - 1)) *cmd_write++ = c; } } } while (c!='\n' && n); *cmd_write=0; if (!n && cmd_write==temp) { //Close file and delete bat file DOS_CloseFile(file_handle); delete this; return false; } if (!strlen(temp)) goto emptyline; if (temp[0]==':') goto emptyline; /* Now parse the line read from the bat file for % stuff */ cmd_write=line; char * cmd_read=temp; while (*cmd_read) { if (*cmd_read == '%') { cmd_read++; if (cmd_read[0] == '%') { cmd_read++; if (((cmd_write - line) + 1) < (CMD_MAXLINE - 1)) *cmd_write++ = '%'; continue; } if (cmd_read[0] == '0') { /* Handle %0 */ const char *file_name = cmd->GetFileName(); cmd_read++; size_t name_len = strlen(file_name); if (((cmd_write - line) + name_len) < (CMD_MAXLINE - 1)) { strcpy(cmd_write,file_name); cmd_write += name_len; } continue; } char next = cmd_read[0]; if(next > '0' && next <= '9') { /* Handle %1 %2 .. %9 */ cmd_read++; //Progress reader next -= '0'; if (cmd->GetCount()<(unsigned int)next) continue; std::string word; if (!cmd->FindCommand((unsigned int)next,word)) continue; size_t name_len = strlen(word.c_str()); if (((cmd_write - line) + name_len) < (CMD_MAXLINE - 1)) { strcpy(cmd_write,word.c_str()); cmd_write += name_len; } continue; } else { /* Not a command line number has to be an environment */ char * first = strchr(cmd_read,'%'); /* No env afterall. Ignore a single % */ if (!first) {/* *cmd_write++ = '%';*/continue;} *first++ = 0; std::string env; if (shell->GetEnvStr(cmd_read,env)) { const char* equals = strchr(env.c_str(),'='); if (!equals) continue; equals++; size_t name_len = strlen(equals); if (((cmd_write - line) + name_len) < (CMD_MAXLINE - 1)) { strcpy(cmd_write,equals); cmd_write += name_len; } } cmd_read = first; } } else { if (((cmd_write - line) + 1) < (CMD_MAXLINE - 1)) *cmd_write++ = *cmd_read++; } } *cmd_write = 0; //Store current location and close bat file this->location = 0; DOS_SeekFile(file_handle,&(this->location),DOS_SEEK_CUR); DOS_CloseFile(file_handle); return true; }
bool BatchFile::ReadLine(char * line) { //Open the batchfile and seek to stored postion if (!DOS_OpenFile(filename.c_str(),128,&file_handle)) { LOG(LOG_MISC,LOG_ERROR)("ReadLine Can't open BatchFile %s",filename.c_str()); delete this; return false; } DOS_SeekFile(file_handle,&(this->location),DOS_SEEK_SET); Bit8u c=0;Bit16u n=1; char temp[CMD_MAXLINE]; emptyline: char * cmd_write=temp; do { n=1; DOS_ReadFile(file_handle,&c,&n); if (n>0) { /* Why are we filtering this ? * Exclusion list: tab for batch files * escape for ansi * backspace for alien odyssey */ if (c>31 || c==0x1b || c=='\t' || c==8) *cmd_write++=c; } } while (c!='\n' && n); *cmd_write=0; if (!n && cmd_write==temp) { //Close file and delete bat file DOS_CloseFile(file_handle); delete this; return false; } if (!strlen(temp)) goto emptyline; if (temp[0]==':') goto emptyline; /* Now parse the line read from the bat file for % stuff */ cmd_write=line; char * cmd_read=temp; while (*cmd_read) { if (*cmd_read=='%') { cmd_read++; if (cmd_read[0] == '%') { cmd_read++; *cmd_write++='%'; continue; } if (cmd_read[0] == '0') { /* Handle %0 */ const char *file_name = cmd->GetFileName(); cmd_read++; strcpy(cmd_write,file_name); cmd_write+=strlen(file_name); continue; } char next = cmd_read[0]; if(next > '0' && next <= '9') { /* Handle %1 %2 .. %9 */ cmd_read++; //Progress reader next -= '0'; if (cmd->GetCount()<(unsigned int)next) continue; std::string word; if (!cmd->FindCommand(next,word)) continue; strcpy(cmd_write,word.c_str()); cmd_write+=strlen(word.c_str()); continue; } else { /* Not a command line number has to be an environment */ char * first=strchr(cmd_read,'%'); /* No env afterall.Somewhat of a hack though as %% and % aren't handled consistent in dosbox. Maybe echo needs to parse % and %% as well. */ if (!first) {*cmd_write++ = '%';continue;} *first++ = 0; std::string env; if (shell->GetEnvStr(cmd_read,env)) { const char * equals=strchr(env.c_str(),'='); if (!equals) continue; equals++; strcpy(cmd_write,equals); cmd_write+=strlen(equals); } cmd_read=first; } } else { *cmd_write++=*cmd_read++; } } *cmd_write=0; //Store current location and close bat file this->location = 0; DOS_SeekFile(file_handle,&(this->location),DOS_SEEK_CUR); DOS_CloseFile(file_handle); return true; }
static Bitu DOS_21Handler(void) { if (((reg_ah != 0x50) && (reg_ah != 0x51) && (reg_ah != 0x62) && (reg_ah != 0x64)) && (reg_ah < 0x6c)) if (dos.psp() != 0) // No program loaded yet? { DOS_PSP psp(dos.psp()); psp.SetStack(SegOff2dWord(SegValue(ss), reg_sp-18)); psp.FindFreeFileEntry(); } char name1[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII]; char name2[DOSNAMEBUF+2+DOS_NAMELENGTH_ASCII]; switch (reg_ah) { case 0x00: // Terminate Program DOS_Terminate(Mem_Lodsw(SegPhys(ss)+reg_sp+2), false, 0); break; case 0x01: // Read character from STDIN, with echo { Bit8u c; Bit16u n = 1; dos.echo = true; DOS_ReadFile(STDIN, &c, &n); reg_al = c; dos.echo = false; } break; case 0x02: // Write character to STDOUT { Bit8u c = reg_dl; Bit16u n = 1; DOS_WriteFile(STDOUT, &c, &n); // Not in the official specs, but happens nonetheless. (last written character) reg_al = c; // reg_al=(c==9)?0x20:c; //Officially: tab to spaces } break; case 0x03: // Read character from STDAUX { Bit16u port = Mem_Lodsw(0x40, 0); if (port != 0 && serialPorts[0]) serialPorts[0]->Getchar(®_al); } break; case 0x04: // Write Character to STDAUX { Bit16u port = Mem_Lodsw(0x40, 0); if (port != 0 && serialPorts[0]) serialPorts[0]->Putchar(reg_dl); } break; case 0x05: // Write Character to PRINTER parallelPorts[0]->Putchar(reg_dl); break; case 0x06: // Direct Console Output/Input if (reg_dl == 0xff) // Input { // TODO Make this better according to standards if (!DOS_GetSTDINStatus()) { reg_al = 0; CALLBACK_SZF(true); break; } Bit8u c; Bit16u n = 1; DOS_ReadFile(STDIN, &c, &n); reg_al = c; CALLBACK_SZF(false); } else // Ouput { Bit8u c = reg_dl; Bit16u n = 1; DOS_WriteFile(STDOUT, &c, &n); reg_al = reg_dl; } break; case 0x07: // Character Input, without echo case 0x08: // Direct Character Input, without echo (checks for breaks officially :) { Bit8u c; Bit16u n = 1; DOS_ReadFile (STDIN, &c, &n); reg_al = c; } break; case 0x09: // Write string to STDOUT { Bit8u c; Bit16u n = 1; PhysPt buf = SegPhys(ds)+reg_dx; while ((c = Mem_Lodsb(buf++)) != '$') DOS_WriteFile(STDOUT, &c, &n); } break; case 0x0a: // Buffered Input { // TODO ADD Break checkin in STDIN but can't care that much for it PhysPt data = SegPhys(ds)+reg_dx; Bit8u free = Mem_Lodsb(data); if (!free) break; Bit8u read = 0; Bit8u c; Bit16u n = 1; for(;;) { DOS_ReadFile(STDIN, &c ,&n); if (c == 8) { // Backspace if (read) { // Something to backspace. DOS_WriteFile(STDOUT, &c, &n); // STDOUT treats backspace as non-destructive. c = ' '; DOS_WriteFile(STDOUT, &c, &n); c = 8; DOS_WriteFile(STDOUT, &c, &n); --read; } continue; } if (read >= free) // Keyboard buffer full { Beep(1750, 300); continue; } DOS_WriteFile(STDOUT, &c, &n); Mem_Stosb(data+read+2, c); if (c == 13) break; read++; } Mem_Stosb(data+1, read); } break; case 0x0b: // Get STDIN Status reg_al = DOS_GetSTDINStatus() ? 0xff : 0x00; break; case 0x0c: // Flush Buffer and read STDIN call { Bit8u handle = RealHandle(STDIN); if (handle != 0xFF && Files[handle] && Files[handle]->IsName("CON")) // flush buffer if STDIN is CON { Bit8u c; Bit16u n; while (DOS_GetSTDINStatus()) { n = 1; DOS_ReadFile(STDIN, &c, &n); } } if (reg_al == 0x1 || reg_al == 0x6 || reg_al == 0x7 || reg_al == 0x8 || reg_al == 0xa) { Bit8u oldah = reg_ah; reg_ah = reg_al; DOS_21Handler(); reg_ah = oldah; } else reg_al = 0; } break; case 0x0d: // Disk Reset break; case 0x0e: // Select Default Drive DOS_SetDefaultDrive(reg_dl); reg_al = DOS_DRIVES; break; case 0x0f: // Open File using FCB reg_al = DOS_FCBOpen(SegValue(ds), reg_dx) ? 0 : 0xFF; break; case 0x10: // Close File using FCB reg_al = DOS_FCBClose(SegValue(ds), reg_dx) ? 0 : 0xFF; break; case 0x11: // Find First Matching File using FCB reg_al = DOS_FCBFindFirst(SegValue(ds), reg_dx) ? 0 : 0xFF; // No test for C:\COMMAND.COM! break; case 0x12: // Find Next Matching File using FCB reg_al = DOS_FCBFindNext(SegValue(ds), reg_dx) ? 0 : 0xFF; break; case 0x13: // Delete File using FCB reg_al = DOS_FCBDeleteFile(SegValue(ds), reg_dx) ? 0 : 0xFF; break; case 0x14: // Sequential read from FCB reg_al = DOS_FCBRead(SegValue(ds), reg_dx, 0); break; case 0x15: // Sequential write to FCB reg_al = DOS_FCBWrite(SegValue(ds), reg_dx, 0); break; case 0x16: // Create or truncate file using FCB reg_al = DOS_FCBCreate(SegValue(ds), reg_dx) ? 0 : 0xFF; break; case 0x17: // Rename file using FCB reg_al = DOS_FCBRenameFile(SegValue(ds), reg_dx) ? 0 : 0xFF; break; case 0x1b: // Get allocation info for default drive if (!DOS_GetAllocationInfo(0, ®_cx, ®_al, ®_dx)) reg_al = 0xFF; break; case 0x1c: // Get allocation info for specific drive if (!DOS_GetAllocationInfo(reg_dl, ®_cx, ®_al, ®_dx)) reg_al = 0xFF; break; case 0x21: // Read random record from FCB reg_al = DOS_FCBRandomRead(SegValue(ds), reg_dx, 1, true); break; case 0x22: // Write random record to FCB reg_al = DOS_FCBRandomWrite(SegValue(ds), reg_dx, 1, true); break; case 0x23: // Get file size for FCB reg_al = DOS_FCBGetFileSize(SegValue(ds), reg_dx) ? 0 : 0xFF; break; case 0x24: // Set Random Record number for FCB DOS_FCBSetRandomRecord(SegValue(ds), reg_dx); break; case 0x27: // Random block read from FCB reg_al = DOS_FCBRandomRead(SegValue(ds), reg_dx, reg_cx, false); break; case 0x28: // Random Block write to FCB reg_al = DOS_FCBRandomWrite(SegValue(ds), reg_dx, reg_cx, false); break; case 0x29: // Parse filename into FCB { Bit8u difference; char string[1024]; Mem_StrnCopyFrom(string, SegPhys(ds)+reg_si, 1023); // 1024 toasts the stack reg_al = FCB_Parsename(SegValue(es), reg_di, reg_al, string, &difference); reg_si += difference; } break; case 0x19: // Get current default drive reg_al = DOS_GetDefaultDrive(); break; case 0x1a: // Set Disk Transfer Area Address dos.dta(RealMakeSeg(ds, reg_dx)); break; case 0x25: // Set Interrupt Vector RealSetVec(reg_al, RealMakeSeg(ds, reg_dx)); break; case 0x26: // Create new PSP DOS_NewPSP(reg_dx, DOS_PSP(dos.psp()).GetSize()); break; case 0x2a: // Get System Date { _SYSTEMTIME systime; // Return the Windows localdate GetLocalTime(&systime); reg_al = (Bit8u)systime.wDayOfWeek; // NB Sunday = 0, despite of MSDN documentation reg_cx = systime.wYear; reg_dx = (systime.wMonth<<8)+systime.wDay; } break; case 0x2b: // Set System Date (we don't!) reg_al = 0xff; daysInMonth[2] = reg_cx&3 ? 28 : 29; // Year is from 1980 to 2099, it is this simple if (reg_cx >= 1980 && reg_cx <= 2099) if (reg_dh > 0 && reg_dh <= 12) if (reg_dl > 0 && reg_dl <= daysInMonth[reg_dh]) reg_al = 0; // Date is valid, fake set break; case 0x2c: // Get System Time { _SYSTEMTIME systime; // Return the Windows localtime GetLocalTime(&systime); reg_cx = (systime.wHour<<8) + systime.wMinute; reg_dx = (systime.wSecond<<8) + systime.wMilliseconds/10; } break; case 0x2d: // Set System Time (we don't!) if (reg_ch < 24 && reg_cl < 60 && reg_dh < 60 && reg_dl < 100) reg_al = 0; // Time is valid, fake set else reg_al = 0xff; break; case 0x2e: // Set Verify flag dos.verify = (reg_al == 1); break; case 0x2f: // Get Disk Transfer Area SegSet16(es, RealSeg(dos.dta())); reg_bx = RealOff(dos.dta()); break; case 0x30: // Get DOS Version if (reg_al == 0) reg_bh = 0xFF; // Fake Microsoft DOS else if (reg_al == 1) reg_bh = 0; // DOS is NOT in HMA reg_al = dos.version.major; reg_ah = dos.version.minor; reg_bl = 0; // Serialnumber reg_cx = 0; break; case 0x31: // Terminate and stay resident // Important: This service does not set the carry flag! DOS_ResizeMemory(dos.psp(), ®_dx); DOS_Terminate(dos.psp(), true, reg_al); break; case 0x1f: // Get drive parameter block for default drive case 0x32: // Get drive parameter block for specific drive { // Officially a dpb should be returned as well. The disk detection part is implemented Bit8u drive = reg_dl; if (!drive || reg_ah == 0x1f) drive = DOS_GetDefaultDrive(); else drive--; if (Drives[drive]) { reg_al = 0; SegSet16(ds, dos.tables.dpb); reg_bx = drive; // Faking only the first entry (that is the driveletter) } else reg_al = 0xff; } break; case 0x33: // Extended Break Checking switch (reg_al) { case 0: // Get the breakcheck flag reg_dl = dos.breakcheck; break; case 1: // Set the breakcheck flag dos.breakcheck = (reg_dl > 0); break; case 2: { bool old = dos.breakcheck; dos.breakcheck = (reg_dl > 0); reg_dl = old; } break; case 3: // Get cpsw case 4: // Set cpsw, both not used really break; case 5: reg_dl = 3; // Boot drive = C: break; case 6: // Get true version number reg_bx = (dos.version.minor<<8) + dos.version.major; reg_dx = 0x1000; // Dos in ROM break; default: reg_al = 0xff; } break; case 0x34: // Get address of INDos Flag SegSet16(es, DOS_SDA_SEG); reg_bx = DOS_SDA_OFS + 0x01; break; case 0x35: // Get interrupt vector reg_bx = Mem_Lodsw(0, ((Bit16u)reg_al)*4); SegSet16(es, Mem_Lodsw(0, ((Bit16u)reg_al)*4+2)); break; case 0x36: // Get Free Disk Space { Bit16u bytes, clusters, free; Bit8u sectors; if (DOS_GetFreeDiskSpace(reg_dl, &bytes, §ors, &clusters, &free)) { reg_ax = sectors; reg_bx = free; reg_cx = bytes; reg_dx = clusters; } else reg_ax = 0xffff; // invalid drive specified } break; case 0x37: // Get/Set Switch char Get/Set Availdev thing switch (reg_al) { case 0: reg_dl = 0x2f; // Always return '/' like dos 5.0+ break; case 1: reg_al = 0; break; case 2: reg_al = 0; reg_dl = 0x2f; break; case 3: reg_al = 0; break; } break; case 0x38: // Get/set Country Code if (reg_al == 0) // Get country specidic information { PhysPt dest = SegPhys(ds)+reg_dx; Mem_CopyTo(dest, dos.tables.country, 0x18); reg_ax = reg_bx = 1; CALLBACK_SCF(false); } else // Set country code CALLBACK_SCF(true); break; case 0x39: // MKDIR Create directory Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF); rSpTrim(name1); if (DOS_MakeDir(name1)) { reg_ax = 0xffff; // AX destroyed CALLBACK_SCF(false); } else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } break; case 0x3a: // RMDIR Remove directory Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF); rSpTrim(name1); if (DOS_RemoveDir(name1)) { reg_ax = 0xffff; // AX destroyed CALLBACK_SCF(false); } else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } break; case 0x3b: // CHDIR Set current directory Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF); rSpTrim(name1); if (DOS_ChangeDir(name1)) { reg_ax = 0xff00; // AX destroyed CALLBACK_SCF(false); } else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } break; case 0x3c: // CREATE Create or truncate file Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF); rSpTrim(name1); if (DOS_CreateFile(name1, reg_cx, ®_ax)) CALLBACK_SCF(false); else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } break; case 0x3d: // OPEN Open existing file { Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF); rSpTrim(name1); if (DOS_OpenFile(name1, reg_al, ®_ax)) CALLBACK_SCF(false); else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } break; } case 0x3e: // CLOSE Close file if (DOS_CloseFile(reg_bx)) CALLBACK_SCF(false); else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } break; case 0x3f: // READ Read from file or device { Bit16u toread = reg_cx; dos.echo = true; if (DOS_ReadFile(reg_bx, dos_copybuf, &toread)) { Mem_CopyTo(SegPhys(ds)+reg_dx, dos_copybuf, toread); reg_ax = toread; CALLBACK_SCF(false); } else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } dos.echo = false; } break; case 0x40: // WRITE Write to file or device { Bit16u towrite = reg_cx; Mem_CopyFrom(SegPhys(ds)+reg_dx, dos_copybuf, towrite); if (DOS_WriteFile(reg_bx, dos_copybuf, &towrite)) { reg_ax = towrite; CALLBACK_SCF(false); } else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } } break; case 0x41: // UNLINK Delete file Mem_StrnCopyFrom(name1, SegPhys(ds)+reg_dx, DOSNAMEBUF); rSpTrim(name1); if (DOS_UnlinkFile(name1)) CALLBACK_SCF(false); else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } break; case 0x42: // LSEEK Set current file position { Bit32u pos = (reg_cx<<16) + reg_dx; if (DOS_SeekFile(reg_bx, &pos, reg_al)) { reg_dx = (Bit16u)(pos >> 16); reg_ax = (Bit16u)(pos & 0xFFFF); CALLBACK_SCF(false); } else { reg_ax = dos.errorcode; CALLBACK_SCF(true); } }
void DOS_Shell::CMD_COPY(char * args) { HELP("COPY"); static char defaulttarget[] = "."; StripSpaces(args); /* Command uses dta so set it to our internal dta */ RealPt save_dta=dos.dta(); dos.dta(dos.tables.tempdta); DOS_DTA dta(dos.dta()); Bit32u size;Bit16u date;Bit16u time;Bit8u attr; char name[DOS_NAMELENGTH_ASCII], lname[LFN_NAMELENGTH+1]; std::vector<copysource> sources; // ignore /b and /t switches: always copy binary while(ScanCMDBool(args,"B")) ; while(ScanCMDBool(args,"T")) ; //Shouldn't this be A ? while(ScanCMDBool(args,"A")) ; ScanCMDBool(args,"Y"); ScanCMDBool(args,"-Y"); ScanCMDBool(args,"V"); char * rem=ScanCMDRemain(args); if (rem) { WriteOut(MSG_Get("SHELL_ILLEGAL_SWITCH"),rem); dos.dta(save_dta); return; } // Gather all sources (extension to copy more then 1 file specified at command line) // Concatenating files go as follows: All parts except for the last bear the concat flag. // This construction allows them to be counted (only the non concat set) char q[]="\""; char* source_p = NULL; char source_x[DOS_PATHLENGTH+CROSS_LEN]; while ( (source_p = StripArg(args)) && *source_p ) { do { char* plus = strchr(source_p,'+'); // If StripWord() previously cut at a space before a plus then // set concatenate flag on last source and remove leading plus. if (plus == source_p && sources.size()) { sources[sources.size()-1].concat = true; // If spaces also followed plus then item is only a plus. if (strlen(++source_p)==0) break; plus = strchr(source_p,'+'); } if (plus) *plus++ = 0; safe_strncpy(source_x,source_p,CROSS_LEN); bool has_drive_spec = false; size_t source_x_len = strlen(source_x); if (source_x_len>0) { if (source_x[source_x_len-1]==':') has_drive_spec = true; } if (!has_drive_spec && !strpbrk(source_p,"*?") ) { //doubt that fu*\*.* is valid char spath[DOS_PATHLENGTH]; if (DOS_GetSFNPath(source_p,spath,false) && DOS_FindFirst(spath,0xffff & ~DOS_ATTR_VOLUME)) { dta.GetResult(name,lname,size,date,time,attr); if (attr & DOS_ATTR_DIRECTORY) strcat(source_x,"\\*.*"); } } sources.push_back(copysource(source_x,(plus)?true:false)); source_p = plus; } while(source_p && *source_p); } // At least one source has to be there if (!sources.size() || !sources[0].filename.size()) { WriteOut(MSG_Get("SHELL_MISSING_PARAMETER")); dos.dta(save_dta); return; }; copysource target; // If more then one object exists and last target is not part of a // concat sequence then make it the target. if(sources.size()>1 && !sources[sources.size()-2].concat){ target = sources.back(); sources.pop_back(); } //If no target => default target with concat flag true to detect a+b+c if(target.filename.size() == 0) target = copysource(defaulttarget,true); copysource oldsource; copysource source; Bit32u count = 0; while(sources.size()) { /* Get next source item and keep track of old source for concat start end */ oldsource = source; source = sources[0]; sources.erase(sources.begin()); //Skip first file if doing a+b+c. Set target to first file if(!oldsource.concat && source.concat && target.concat) { target = source; continue; } /* Make a full path in the args */ char pathSourcePre[DOS_PATHLENGTH], pathSource[DOS_PATHLENGTH+2]; char pathTarget[DOS_PATHLENGTH]; if (!DOS_Canonicalize(const_cast<char*>(source.filename.c_str()),pathSourcePre)) { WriteOut(MSG_Get("SHELL_ILLEGAL_PATH")); dos.dta(save_dta); return; } strcpy(pathSource,pathSourcePre); if (uselfn) sprintf(pathSource,"\"%s\"",pathSourcePre); // cut search pattern char* pos = strrchr(pathSource,'\\'); if (pos) *(pos+1) = 0; if (!DOS_Canonicalize(const_cast<char*>(target.filename.c_str()),pathTarget)) { WriteOut(MSG_Get("SHELL_ILLEGAL_PATH")); dos.dta(save_dta); return; } char* temp = strstr(pathTarget,"*.*"); if(temp) *temp = 0;//strip off *.* from target // add '\\' if target is a directory bool target_is_file = true; if (pathTarget[strlen(pathTarget)-1]!='\\') { if (DOS_FindFirst(pathTarget,0xffff & ~DOS_ATTR_VOLUME)) { dta.GetResult(name,lname,size,date,time,attr); if (attr & DOS_ATTR_DIRECTORY) { strcat(pathTarget,"\\"); target_is_file = false; } } } else target_is_file = false; //Find first sourcefile char sPath[DOS_PATHLENGTH]; bool ret = DOS_GetSFNPath(source.filename.c_str(),sPath,false) && DOS_FindFirst(const_cast<char*>(sPath),0xffff & ~DOS_ATTR_VOLUME); if (!ret) { WriteOut(MSG_Get("SHELL_CMD_FILE_NOT_FOUND"),const_cast<char*>(source.filename.c_str())); dos.dta(save_dta); return; } Bit16u sourceHandle,targetHandle; char nameTarget[DOS_PATHLENGTH]; char nameSource[DOS_PATHLENGTH]; bool second_file_of_current_source = false; while (ret) { dta.GetResult(name,lname,size,date,time,attr); if ((attr & DOS_ATTR_DIRECTORY)==0) { strcpy(nameSource,pathSource); strcat(nameSource,name); // Open Source if (DOS_OpenFile(nameSource,0,&sourceHandle)) { // Create Target or open it if in concat mode strcpy(nameTarget,q); strcat(nameTarget,pathTarget); if (nameTarget[strlen(nameTarget)-1]=='\\') strcat(nameTarget,uselfn?lname:name); strcat(nameTarget,q); //Special variable to ensure that copy * a_file, where a_file is not a directory concats. bool special = second_file_of_current_source && target_is_file; second_file_of_current_source = true; if (special) oldsource.concat = true; //Don't create a new file when in concat mode if (oldsource.concat || DOS_CreateFile(nameTarget,0,&targetHandle)) { Bit32u dummy=0; //In concat mode. Open the target and seek to the eof if (!oldsource.concat || (DOS_OpenFile(nameTarget,OPEN_READWRITE,&targetHandle) && DOS_SeekFile(targetHandle,&dummy,DOS_SEEK_END))) { // Copy static Bit8u buffer[0x8000]; // static, otherwise stack overflow possible. bool failed = false; Bit16u toread = 0x8000; do { failed |= DOS_ReadFile(sourceHandle,buffer,&toread); failed |= DOS_WriteFile(targetHandle,buffer,&toread); } while (toread==0x8000); failed |= DOS_CloseFile(sourceHandle); failed |= DOS_CloseFile(targetHandle); if (strcmp(name,lname)&&uselfn) WriteOut(" %s [%s]\n",lname,name); else WriteOut(" %s\n",uselfn?lname:name); if(!source.concat && !special) count++; //Only count concat files once } else { DOS_CloseFile(sourceHandle); WriteOut(MSG_Get("SHELL_CMD_COPY_FAILURE"),const_cast<char*>(target.filename.c_str())); } } else { DOS_CloseFile(sourceHandle); WriteOut(MSG_Get("SHELL_CMD_COPY_FAILURE"),const_cast<char*>(target.filename.c_str())); } } else WriteOut(MSG_Get("SHELL_CMD_COPY_FAILURE"),const_cast<char*>(source.filename.c_str())); }; //On to the next file if the previous one wasn't a device if ((attr&DOS_ATTR_DEVICE) == 0) ret = DOS_FindNext(); else ret = false; }; } WriteOut(MSG_Get("SHELL_CMD_COPY_SUCCESS"),count); dos.dta(save_dta); }