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authorGravatar Mark Zbikowski2024-04-25 21:24:10 +0100
committerGravatar Microsoft Open Source2024-04-25 22:32:27 +0000
commit2d04cacc5322951f187bb17e017c12920ac8ebe2 (patch)
tree80ee017efa878dfd5344b44249e6a241f2a7f6e2 /v4.0/src/CMD/COMMAND/INIT.ASM
parentMerge pull request #430 from jpbaltazar/typoptbr (diff)
downloadms-dos-main.tar.gz
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MZ is back!HEADmain
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1 page 80,132
2; SCCSID = @(#)init.asm 4.13 85/11/03
3; SCCSID = @(#)init.asm 4.13 85/11/03
4TITLE COMMAND Initialization
5
6 INCLUDE comsw.asm
7
8.xlist
9.xcref
10 INCLUDE DOSSYM.INC
11 include doscntry.inc ;AC000;
12 INCLUDE comseg.asm
13 INCLUDE comequ.asm
14 include resmsg.equ ;AN000;
15.list
16.cref
17
18
19ENVIRONSIZ EQU 0A0H ;Must agree with values in EVIRONMENT segment
20ENVIRONSIZ2 EQU 092H
21
22ENVBIG EQU 32768
23ENVSML EQU 160
24KOREA_COUNTRY_CODE EQU 82
25
26CODERES SEGMENT PUBLIC BYTE ;AC000;
27 EXTRN CONTC:NEAR
28 EXTRN DskErr:NEAR
29 EXTRN endinit:near
30 EXTRN INT_2E:NEAR
31 EXTRN LODCOM:NEAR
32 EXTRN RSTACK:WORD
33CODERES ENDS
34
35DATARES SEGMENT PUBLIC BYTE ;AC000;
36 EXTRN abort_char:byte ;AN000;
37 EXTRN append_state:word ;AN042;
38 EXTRN BADFAT_OP_SEG:WORD ;AN000;
39 EXTRN BATCH:WORD
40 EXTRN COM_FCB1:DWORD
41 EXTRN COM_FCB2:DWORD
42 EXTRN COM_PTR:DWORD
43 EXTRN com_xlat_addr:word
44 EXTRN COMDRV:BYTE
45 EXTRN COMPRMT1_SEG:WORD ;AN000;
46 EXTRN COMPRMT1_SEG2:WORD ;AN000;
47 EXTRN COMSPEC:BYTE
48 EXTRN comspec_print:word
49 EXTRN comspec_end:word
50 EXTRN cpdrv:byte
51 EXTRN crit_msg_off:word ;AN000;
52 EXTRN crit_msg_seg:word ;AN000;
53 EXTRN critical_msg_start:byte ;AN000;
54 EXTRN DATARESEND:BYTE ;AC000;
55 EXTRN dbcs_vector_addr:word ;AN000;
56 EXTRN DEVE_OP_SEG:WORD ;AN000;
57 EXTRN DEVE_OP_SEG2:WORD ;AN000;
58 EXTRN disp_class:byte ;AN000;
59 EXTRN DRVNUM_OP_SEG:WORD ;AN000;
60 EXTRN DRVNUM_OP_SEG2:WORD ;AN000;
61 EXTRN EchoFlag:BYTE
62 EXTRN ENVIRSEG:WORD
63 EXTRN ERR15_OP_SEG:WORD ;AN000;
64 EXTRN ERR15_OP_SEG2:WORD ;AN000;
65 EXTRN ERR15_OP_SEG3:WORD ;AN000;
66 EXTRN extended_msg_start:byte ;AN000;
67 EXTRN extmsgend:byte ;AN000;
68 EXTRN fFail:BYTE
69 EXTRN fucase_addr:word ;AN000;
70 EXTRN InitFlag:BYTE
71 EXTRN IO_SAVE:WORD
72 EXTRN LTPA:WORD ;AC000;
73 EXTRN MEMSIZ:WORD
74 EXTRN MYSEG:WORD ;AC000;
75 EXTRN MYSEG1:WORD
76 EXTRN MYSEG2:WORD
77 EXTRN nest:word
78 EXTRN number_subst:byte ;AN000;
79 EXTRN OldTerm:DWORD
80 EXTRN PARENT:WORD
81;AD060; EXTRN pars_msg_off:word ;AN000;
82;AD060; EXTRN pars_msg_seg:word ;AN000;
83 EXTRN parse_msg_start:byte ;AN000;
84 EXTRN parsemes_ptr:word ;AN000;
85 EXTRN PERMCOM:BYTE
86 EXTRN RES_TPA:WORD
87 EXTRN resmsgend:word ;AN000;
88 EXTRN RSWITCHAR:BYTE
89 EXTRN SINGLECOM:WORD
90 EXTRN SUM:WORD
91 EXTRN TRNSEG:WORD
92 EXTRN TrnMvFlg:BYTE
93DATARES ENDS
94
95BATARENA SEGMENT PUBLIC PARA ;AC000;
96BATARENA ENDS
97
98BATSEG SEGMENT PUBLIC PARA ;AC000;
99BATSEG ENDS
100
101ENVARENA SEGMENT PUBLIC PARA ;AC000;
102ENVARENA ENDS
103
104ENVIRONMENT SEGMENT PUBLIC PARA ; Default COMMAND environment
105 EXTRN ECOMSPEC:BYTE
106 EXTRN ENVIREND:BYTE
107 EXTRN PATHSTRING:BYTE
108ENVIRONMENT ENDS
109
110TAIL SEGMENT PUBLIC PARA
111 EXTRN TRANSTART:WORD
112TAIL ENDS
113
114TRANCODE SEGMENT PUBLIC BYTE ;AC000;
115 EXTRN DATINIT:FAR
116 EXTRN printf_init:far
117TRANCODE ENDS
118
119TRANSPACE SEGMENT PUBLIC BYTE ;AC000;
120 EXTRN TRANSPACEEND:BYTE
121TRANSPACE ENDS
122
123; This is the area used for the autoexec.bat file. BATARENA is a pad for the
124; the address mark placed by DOS.
125
126BATARENA SEGMENT PUBLIC PARA
127
128 ORG 0
129 DB 10h DUP (?) ;Pad for memory allocation addr mark
130
131BATARENA ENDS
132
133BATSEG SEGMENT PUBLIC PARA ;Autoexec.bat segment
134
135 ORG 0
136 initbat batchsegment <> ;batch segment
137 DB 31 DUP (0) ;reserve area for batch file name & pad
138
139BATSEG ENDS
140
141; *******************************************************************
142; START OF INIT PORTION
143; This code is overlayed the first time the TPA is used.
144
145INIT SEGMENT PUBLIC PARA
146
147 EXTRN AUTOBAT:byte
148 EXTRN BADCSPFL:byte
149 EXTRN bslash:byte
150 EXTRN CHUCKENV:byte
151 EXTRN command_c_syn:byte ;AN000;
152 EXTRN command_d_syn:byte ;AN000;
153 EXTRN command_e_syn:byte ;AN000;
154 EXTRN command_f_syn:byte ;AN000;
155 EXTRN command_m_syn:byte ;AN000;
156 EXTRN command_p_syn:byte ;AN000;
157 EXTRN comnd1_syn:word ;AN000;
158 EXTRN comnd1_addr:dword ;AN000;
159 EXTRN COMSPECT:byte
160 EXTRN comspstring:byte
161 EXTRN dswitch:byte ;AN018;
162 EXTRN ECOMLOC:word
163 EXTRN EnvMax:WORD
164 EXTRN EnvSiz:WORD
165 EXTRN equalsign:byte
166 EXTRN eswitch:byte ;AN018;
167 EXTRN ext_msg:byte ;AN000;
168 EXTRN fslash:byte
169 EXTRN INITADD:dword
170 EXTRN initend:word
171 EXTRN init_parse:dword ;AN054;
172 EXTRN INTERNAT_INFO:BYTE ;AN000; 3/3/KK
173 EXTRN KAUTOBAT:byte ;AN000; 3/3/KK
174 EXTRN lcasea:byte
175 EXTRN lcasez:byte
176 EXTRN num_positionals:word ;AN000;
177 EXTRN oldenv:word
178 EXTRN old_parse_ptr:word ;AN057;
179 EXTRN parse_command:byte ;AN000;
180 EXTRN pars_msg_off:word ;AN060;
181 EXTRN pars_msg_seg:word ;AN060;
182 EXTRN PRDATTM:byte
183 EXTRN resetenv:word ;AC000;
184 EXTRN scswitch:byte
185 EXTRN space:byte
186 EXTRN triage_add:dword ;AC000;
187 EXTRN trnsize:word
188 EXTRN ucasea:byte
189 EXTRN usedenv:word
190
191
192;AD054; EXTRN SYSPARSE:NEAR
193
194 PUBLIC CONPROC
195 PUBLIC init_contc_specialcase
196
197ASSUME CS:RESGROUP,DS:RESGROUP,ES:RESGROUP,SS:RESGROUP
198
199 ORG 0
200ZERO = $
201
202
203CONPROC:
204 MOV SP,OFFSET RESGROUP:RSTACK ; MUST be first instruction
205
206 CALL SYSLOADMSG ;AN000; check dos version
207 JNC OKDOS ;AN000; if no problem - continue
208
209 mov ax,badver ;AN000; set DOS version
210 invoke sysdispmsg ;AN000; must be incorrect version
211 mov ax,es
212 cmp es:[PDB_Parent_PID],AX ; If command is its own parent,
213here: ; loop forever.
214 Jz here
215 int 20h ; Otherwise, exit.
216
217;
218; Turn APPEND off during initialization processing
219;
220okdos:
221 mov ax,AppendInstall ;AN042; see if append installed
222 int 2fh ;AN042;
223 cmp al,0 ;AN042; append installed?
224 je set_msg_addr ;AN042; no - continue
225 mov ax,AppendDOS ;AN042; see if append DOS version right
226 int 2fh ;AN042;
227 cmp ax,-1 ;AN042; append version correct?
228 jne set_msg_addr ;AN042; no - continue
229 mov ax,AppendGetState ;AN042; Get the state of Append
230 int 2fh ;AN042;
231 mov append_state,bx ;AN042; save append state
232 xor bx,bx ;AN042; clear out state
233 mov ax,AppendSetState ;AN042; Set the state of Append
234 int 2fh ;AN042; set everything off
235
236set_msg_addr:
237;
238; Get addresses of old critical and parse errors and save so they can
239; be reset if COMMAND needs to exit
240;
241
242 push es ;AN000; SAVE ES DESTROYED BY INT 2FH
243;AD060; mov ah,multdos ;AN000; set up to call DOS through int 2fh
244;AD060; mov al,message_2f ;AN000; call for message retriever
245 mov ax,(multdos shl 8 or message_2f);AN060; set up to call DOS through int 2fh
246 mov dl,get_parse_msg ;AN000; get parse message address
247 int 2fh ;AN000;
248 mov cs:pars_msg_seg,es ;AN000; save returned segment
249 mov cs:pars_msg_off,di ;AN000; save returned offset
250
251;AD060; mov ah,multdos ;AN000; set up to call DOS through int 2fh
252;AD060; mov al,message_2f ;AN000; call for message retriever
253 mov ax,(multdos shl 8 or message_2f);AN060; set up to call DOS through int 2fh
254 mov dl,get_critical_msg ;AN000; get critical error message address
255 int 2fh ;AN000;
256 mov cs:crit_msg_seg,es ;AN000; save returned segment
257 mov cs:crit_msg_off,di ;AN000; save returned offset
258 pop es ;AN000; RESTORE ES DESTROYED BY INT 2FH
259
260;
261; Set addresses of critical and parse errors in this level of COMMAND
262;
263
264;AD060; mov ah,multdos ;AN000; set up to call DOS through int 2fh
265;AD060; mov al,message_2f ;AN000; call for message retriever
266;AD060; mov dl,set_parse_msg ;AN000; set up parse message address
267 mov di,offset resgroup:parse_msg_start ;AN000; start address
268;AD060; int 2fh ;AN000;
269 call set_parse_2f ;AN060; set parse error address
270
271
272;AD060; mov ah,multdos ;AN000; set up to call DOS through int 2fh
273;AD060; mov al,message_2f ;AN000; call for message retriever
274 mov ax,(multdos shl 8 or message_2f);AN060; set up to call DOS through int 2fh
275 mov dl,set_critical_msg ;AN000; set up critical error message address
276 mov di,offset resgroup:critical_msg_start ;AN000; start address
277 int 2fh ;AN000;
278
279 mov di,offset resgroup:dataresend+15 ;AN000; get address of resident end
280 mov [resmsgend],di ;AN000; save it
281 call sysloadmsg ;AN000; load message addresses
282 call get_msg_ptr ;AN000; set up pointers to some translated chars
283 mov ah,GetExtCntry ;g get extended country information
284 mov al,2 ;g minor function - ucase table
285 mov dx,-1 ;g
286 mov bx,-1 ;g
287 mov cx,5 ;g number of bytes we want
288 mov di,offset resgroup:com_xlat_addr ;g buffer to put address in
289 int int_command ;g
290
291 mov ah,GetExtCntry ;AN000; get extended country info
292 mov al,4 ;AN000; get file ucase table
293 mov dx,-1 ;AN000;
294 mov bx,-1 ;AN000;
295 mov cx,5 ;AN000; number of bytes we want
296 mov di,offset resgroup:fucase_addr ;AN000; buffer for address
297 int int_command ;AN000;
298
299 mov dx,offset resgroup:transtart+15 ;eg get end of init code
300 mov cl,4 ;eg change to paragraphs
301 shr dx,cl ;eg
302 mov ax,cs ;eg get current segment
303 add ax,dx ;eg calculate segment of end of init
304 mov [initend],ax ;eg save this
305
306 push ds ;AN000;
307 mov ax, (ECS_call SHL 8) OR GetLeadBTbl ;AN000; get dbcs vector
308 int int_command ;AN000;
309 mov bx,ds ;AN000; get segment to bx
310 pop ds ;AN000;
311 mov dbcs_vector_addr,si ;AN000; save address of
312 mov dbcs_vector_addr+2,bx ;AN000; dbcs vector
313
314
315 mov ax,word ptr ds:[PDB_Parent_PID] ; Init PARENT so we can exit
316 mov [PARENT],ax ; correctly.
317 MOV AX,WORD PTR DS:[PDB_Exit]
318 MOV WORD PTR OldTerm,AX
319 MOV AX,WORD PTR DS:[PDB_Exit+2]
320 MOV WORD PTR OldTerm+2,AX
321
322 MOV AX,OFFSET RESGROUP:ENVIREND + 15
323 MOV CL,4 ; ax = size of resident part of
324 SHR AX,CL ; command in paragraphs. Add
325 MOV CX,CS ; this to CS and you get the
326 ADD AX,CX ; segment of the TPA.
327
328 MOV [RES_TPA], AX ; Temporarily save the TPA segment
329 AND AX, 0F000H
330 ADD AX, 01000H ; Round up to next 64K boundary
331 JNC TPASET ; Memory wrap if carry set
332 MOV AX, [RES_TPA]
333TPASET:
334 MOV [LTPA],AX ; Good enough for the moment
335 MOV AX,WORD PTR DS:[PDB_block_len] ; ax = # of paras given to command
336
337 MOV [MYSEG1],DS ; These 3 variables are used as part of
338 MOV [MYSEG2],DS ; 3 long ptrs that the transient will
339 MOV [MYSEG],DS ; use to call resident routines.
340 MOV [MEMSIZ],AX ; Needed for execing other programs
341;
342; Compute maximum size of environment
343;
344 MOV EnvMax,(Environsiz + 15) / 16 + (EnvMaximum-zero + 15)/16 - 1
345;
346; Compute minimum size of environment
347;
348
349 MOV EnvSiz, ENVSML / 16
350
351 MOV DX,OFFSET TRANGROUP:TRANSPACEEND + 15 ; dx = size of transient
352 MOV CL,4 ; in paragraphs.
353 SHR DX,CL
354 mov [trnsize],dx ;eg save size of transient in paragraphs
355
356 SUB AX,DX ; max seg addr - # para's needed for transient
357 MOV [TRNSEG],AX ; = seg addr to load the transient at.
358 MOV AX,DS:[PDB_environ] ; ax = environment segment
359 OR AX,AX ; If there is no environment segment,
360 JZ BUILDENV ; go compute one.
361 INC BYTE PTR [CHUCKENV] ; Flag no new ENVIRONSEG to set up
362 JMP SHORT ENVIRONPASSED ; Otherwise one was passed to us.
363
364BUILDENV: ; (this label isn't very accurate)
365 MOV AX,OFFSET RESGROUP:PATHSTRING ; Compute the segment of the
366 MOV CL,4 ; environment and put it in
367 SHR AX,CL ; ax.
368 MOV DX,DS
369 ADD AX,DX
370
371ENVIRONPASSED:
372 MOV [ENVIRSEG],AX ; Save the environment's segment and
373 MOV ES,AX ; load into es.
374ASSUME ES:ENVIRONMENT
375
376GOTTHEENVIR:
377 MOV AX,CHAR_OPER SHL 8 ; Get the switch character and store it
378 INT int_command ; in RSWITCHAR.
379 MOV [RSWITCHAR],DL
380
381 CMP DL,fslash ; If backslashes are being used as the
382 JNZ IUSESLASH ; path separator, change the forward
383 mov al,bslash ; slash in COMSPECT and ECOMSPEC (if
384 MOV [COMSPECT],al ; there is a new ENVIRONSEG) to
385 CMP BYTE PTR [CHUCKENV],0 ; backslash.
386 JNZ IUSESLASH
387 MOV ES:[ECOMSPEC],al ;eg
388
389IUSESLASH:
390;
391; Initialize the command drive
392;
393 MOV AH,Get_Default_Drive
394 INT 21h
395 INC AL
396 MOV ComDrv,AL
397
398 MOV AL,BYTE PTR DS:[FCB] ; al = default drive number for command
399 OR AL,AL
400 JZ NoComDrv ; no drive specified
401
402 MOV AH,':'
403 MOV [COMDRV],AL
404 ADD AL,40H ; Convert number to uppercase character
405
406 STD
407 CMP BYTE PTR [CHUCKENV],0 ; If a new environment is being built,
408 JNZ NOTWIDENV ; move the default comspec string in it
409 PUSH DS ; 2 bytes to make room for a drivespec.
410 PUSH ES ; The drivespec is in ax and is copied
411 POP DS ; on to the front of the string.
412 MOV DI,OFFSET ENVIRONMENT:ECOMSPEC + ENVIRONSIZ2 - 1 ;eg
413 MOV SI,OFFSET ENVIRONMENT:ECOMSPEC + ENVIRONSIZ2 - 3 ;eg
414
415 MOV CX,ENVIRONSIZ2 - 2
416 REP MOVSB
417 POP DS
418 MOV WORD PTR ES:[ECOMSPEC],AX
419
420NOTWIDENV:
421 CLD ; Add the drivespec to the string
422 MOV WORD PTR [AUTOBAT],AX ; used to reference autoexec.bat
423 MOV WORD PTR [KAUTOBAT],AX ;AN000; used to reference kautoexe.bat 3/3/KK
424
425NOCOMDRV:
426 INVOKE SETVECT ; Set interrupt vectors 22h, 23h, & 24h
427
428;*********************************
429; PARSING STARTS HERE
430;*********************************
431
432 push cs ;AN000; get local segment
433 push cs ;AN000; into DS,ES
434 pop ds ;AN000;
435 pop es ;AN000;
436
437ASSUME DS:RESGROUP,ES:RESGROUP ;AN000;
438
439 MOV SI,80H ;AC000; get command line
440 LODSB ;AC000; get length of line
441 MOV DI,SI ;AN000; get line position in DI
442 XOR AH,AH ;AC000; ax = length of command line
443;
444; Insure that the command line correctly ends with a CR
445;
446 ADD DI,AX ;AC000; go to end of command line
447 MOV BYTE PTR [DI],0Dh ;AC000; insert a carriage return
448 xor cx,cx ;AC000; clear cx
449 mov num_positionals,cx ;AC000; initialize positionals
450;
451; Scan the command line looking for the parameters
452;
453
454parse_command_line:
455 mov di,offset resgroup:parse_command;AN000; Get address of parse_command
456 mov cx,num_positionals ;AN000; Get number of positionals
457 xor dx,dx ;AN000; clear dx
458 mov old_parse_ptr,si ;AN057; save position before calling parser
459 call init_parse ;AN054; call parser
460 mov num_positionals,cx ;AN000; Save number of positionals
461 cmp ax,end_of_line ;AC000; are we at end of line?
462 jz ArgsDoneJ3 ;AC000; yes - exit
463 cmp ax,result_no_error ;AN000; did an error occur
464 jz parse_cont ;AN000; no - continue
465
466;
467; Before issuing error message - make sure switch is not /C
468;
469
470parse_line_error:
471 push si ;AN057; save line position
472 push ax ;AN057; save error number
473 cmp ax,BadSwt_Ptr ;AN057; Was error invalid switch?
474 jnz parse_line_error_disp ;AN057; No - just issue message
475 mov di,si ;AN057; Get terminating pointer in DI
476 mov si,old_parse_ptr ;AN057; Get starting pointer in SI
477
478init_chk_delim:
479 cmp si,di ;AN057; at end of parsed parameter?
480 jz parse_line_error_disp ;AN057; Yes - just display message
481 lodsb ;AN057;
482 cmp al,space ;AN057; Skip blank spaces
483 jz init_chk_delim ;AN057;
484 cmp al,tab_chr ;AN057; Skip tab characters
485 jz init_chk_delim ;AN057;
486
487 cmp al,[rswitchar] ;AN057; Switch?
488 jnz parse_line_error_disp ;AN057; No - just issue message
489 lodsb ;AN057; Get the char after the switch
490 invoke itestkanj ;AN057; Is it DBCS?
491 jnz parse_line_error_disp ;AN057; Yes - can't be /C
492 invoke iupconv ;AN057; upper case it
493 cmp al,scswitch ;AN057; it is /C?
494 jnz parse_line_error_disp ;AN057;
495 pop dx ;AN057; even up stack
496 pop dx ;AN057; even up stack
497 jmp setSSwitch ;AN057; Yes - go set COMMAND /C
498
499parse_line_error_disp:
500 pop ax ;AN057; restore error number
501 pop si ;AN057; restore line position
502 mov disp_class,parse_msg_class ;AN000; set up parse error msg class
503 mov dx,ax ;AN000; get message number
504 call print_message ;AN000; issue error message
505 jmp short parse_command_line ;AN000; continue parsing
506
507parse_cont:
508;
509; See if a switch was entered
510;
511
512 cmp comnd1_syn,offset resgroup:command_f_syn ;AC000; was /F entered?
513 jz SetFSwitch ;AC000; yes go set fail switch
514 cmp comnd1_syn,offset resgroup:command_p_syn ;AC000; was /P entered?
515 Jz SetPSwitch ;AC000; yes go set up PERMCOM
516 cmp comnd1_syn,offset resgroup:command_d_syn ;AC000; was /D entered?
517 jz SetDSwitch ;AC000; yes go set date switch
518 cmp comnd1_syn,offset resgroup:command_c_syn ;AC000; was /C entered?
519 jz SetSSwitch ;AC000; yes go set up SINGLECOM
520 cmp comnd1_syn,offset resgroup:command_e_syn ;AC000; was /E entered?
521 jz SetESwitch ;AC000; yes go set up environment
522 cmp comnd1_syn,offset resgroup:command_m_syn ;AN000; was /MSG entered?
523 jz SetMSwitchjmp ;AN000; yes go set up message flag
524 jmp chkotherargs ;AC000; Must be something else
525
526SetMSwitchjmp: ;AN018; long jump needed
527 jmp SetMswitch ;AN018;
528
529ArgsdoneJ3: ;AN018; long jump needed
530 jmp ArgsDone ;AN018;
531
532SetFSwitch:
533 cmp fFail,-1 ;AN018; has fail switch been set?
534 jnz failok ;AN018; no - set it
535 mov ax,moreargs_ptr ;AN018; set up too many arguments
536 jmp parse_line_error ;AN018; go issue error message
537
538failok:
539 MOV fFail,-1 ;AC000; fail all INT 24s.
540 JMP parse_command_line ;AC000;
541
542SetPSwitch:
543;
544; We have a permanent COMMAND switch /P. Flag this and stash the
545; termination address.
546;
547 cmp [permcom],0 ;AN018; has /p switch been set?
548 jz permcomok ;AN018; no - set it
549 mov ax,moreargs_ptr ;AN018; set up too many arguments
550 jmp parse_line_error ;AN018; go issue error message
551
552permcomok:
553 INC [PERMCOM]
554 MOV WORD PTR [oldTerm],OFFSET RESGROUP:LODCOM
555 MOV WORD PTR [oldTerm+2],DS
556;
557; Make sure that we display the date and time. If the flag was not
558; initialized, set it to indicate yes, do prompt.
559;
560 CMP BYTE PTR [PRDATTM],-1
561 JNZ parse_command_line_jmp ;AC018; keep parsing
562 MOV BYTE PTR [PRDATTM],0 ; If not set explicit, set to prompt
563
564Parse_command_line_jmp: ;AN018;
565 JMP parse_command_line ;AC000; keep parsing
566
567ArgsDoneJump:
568 JMP ArgsDone
569
570SetDSwitch:
571;
572; Flag no date/time prompting.
573;
574 cmp dswitch,0 ;AN018; has /D switch been set?
575 jz setdateok ;AN018; no - set it
576 mov ax,moreargs_ptr ;AN018; set up too many arguments
577 jmp parse_line_error ;AN018; go issue error message
578
579setdateok:
580 inc dswitch ;AN018; indicate /D entered
581 MOV BYTE PTR [PRDATTM],1 ; User explicitly says no date time
582 JMP parse_command_line ;AC000; continue parsing
583
584SetSSwitch:
585;
586; Set up pointer to command line, flag no date/time and turn off singlecom.
587;
588 MOV [SINGLECOM],SI ; Point to the rest of the command line
589 MOV [PERMCOM],0 ; A SINGLECOM must not be a PERMCOM
590 MOV BYTE PTR [PRDATTM],1 ; No date or time either, explicit
591 JMP ArgsDone
592;
593; Look for environment-size setting switch
594;
595; The environment size is represented in decimal bytes and is
596; converted into pargraphs (rounded up to the next paragraph).
597;
598
599SetESwitch:
600 cmp eswitch,0 ;AN018; has fail switch been set?
601 jz eswitchok ;AN018; no - set it
602 mov ax,moreargs_ptr ;AN018; set up too many arguments
603 jmp parse_line_error ;AN018; go issue error message
604
605eswitchok:
606 inc eswitch ;AN018; indicate /E entered
607 mov di,offset resgroup:comnd1_addr ;AN000; get number returned
608 mov bx,word ptr [di] ;AN000; into bx
609
610 ADD BX, 0FH ; Round up to next paragraph
611 mov cl,4 ;AC000; convert to pargraphs
612 SHR BX, cl ;AC000; by right 4
613
614 MOV EnvSiz,BX ; EnvSiz is in paragraphs
615 JMP parse_command_line ;AC000; continue parsing command line
616
617SetMSwitch:
618 cmp ext_msg,set_extended_msg ;AN018; has /MSG switch been set?
619 jnz setMswitchok ;AN018; no - set it
620 mov ax,moreargs_ptr ;AN018; set up too many arguments
621 jmp parse_line_error ;AN018; go issue error message
622setMswitchok:
623 MOV Ext_msg,set_extended_msg ;AN000; set /MSG switch
624 JMP parse_command_line ;AN000; keep parsing
625
626ARGSDONEJ:
627 JMP ARGSDONE
628
629;
630; We have a non-switch character here.
631;
632CHKOTHERARGS:
633 push ds ;AN054;
634 push si ;AC000; save place in command line
635 lds si,comnd1_addr ;AN000; get address of filespec
636 assume ds:nothing ;AN054;
637
638 mov dx,si ;AN000; put in dx also
639 MOV AX,(OPEN SHL 8) OR 2 ; Read and write
640 INT int_command
641 JC CHKSRCHSPEC ; Wasn't a file
642 MOV BX,AX
643 MOV AX,IOCTL SHL 8
644 INT int_command
645 TEST DL,80H
646 JNZ ISADEVICE
647
648BADSETCON: ;AN022;
649 MOV AH,CLOSE ; Close initial handle, wasn't a device
650 INT int_command
651 JMP CHKSRCHSPEC
652
653ISADEVICE:
654 XOR DH,DH
655 OR DL,3 ; Make sure has CON attributes
656 MOV AX,(IOCTL SHL 8) OR 1
657 INT int_command
658 JC BADSETCON ;AN022; Can't set attributes - quit
659 MOV DX,BX ; Save new handle
660;eg POP BX ; Throw away saved SI
661;eg POP BX ; Throw away saved CX
662 PUSH CX
663 MOV CX,3
664 XOR BX,BX
665
666RCCLLOOP: ; Close 0,1 and 2
667 MOV AH,CLOSE
668 INT int_command
669 INC BX
670 LOOP RCCLLOOP
671 MOV BX,DX ; New device handle
672 MOV AH,XDUP
673 INT int_command ; Dup to 0
674 MOV AH,XDUP
675 INT int_command ; Dup to 1
676 MOV AH,XDUP
677 INT int_command ; Dup to 2
678 MOV AH,CLOSE
679 INT int_command ; Close initial handle
680 POP CX
681 pop si ;AN000; restore position of command line
682 pop ds ;AN054;
683 JMP parse_command_line ;AC000; continue parsing
684
685CHKSRCHSPEC: ; Not a device, so must be directory spec
686
687 MOV BYTE PTR [CHUCKENV],0 ; If search specified -- no inheritance
688 MOV AX,OFFSET RESGROUP:PATHSTRING ; Figure environment pointer
689 MOV CL,4
690 SHR AX,CL
691;AD054; MOV DX,DS
692 MOV DX,CS ;AC054;
693 ADD AX,DX
694 MOV [ENVIRSEG],AX
695
696 MOV ES,AX
697 push si ;AN000; remember location of file
698 xor cx,cx ;AN000; clear cx for counting
699
700countloop:
701 lodsb ;AN000; get a character
702 inc cx ;AN000; increment counter
703 cmp al,end_of_line_out ;AN000; are we at end of line?
704 jnz countloop ;AN000; no - keep counting
705
706 mov al,space
707 dec si ;AN000; move back one
708 MOV BYTE PTR [SI],al ;AN000; put a space at end of line
709 pop si ;AC000; get location back
710
711 MOV DI,[ECOMLOC]
712
713COMTRLOOP:
714 LODSB
715 DEC CX
716 CMP AL,space
717 JZ SETCOMSR
718 STOSB
719
720;;; IF KANJI 3/3/KK
721 XOR AH,AH
722;;; ENDIF 3/3/KK
723
724 JCXZ SETCOMSR
725
726;;;; IF KANJI 3/3/KK
727 PUSH DS ;AN054; Make sure we have
728 PUSH CS ;AN054; local DS for
729 POP DS ;AN054; ITESTKANJ
730 INVOKE ITESTKANJ
731 POP DS ;AN054; restore PARSER DS
732 JZ COMTRLOOP
733 DEC CX
734 MOVSB
735 INC AH
736 JCXZ SETCOMSR
737;;;; ENDIF 3/3/KK
738
739 JMP SHORT COMTRLOOP
740
741SETCOMSR:
742 PUSH CX
743
744 PUSH CS ;AN054; Get local segment
745 POP DS ;AN054;
746 assume ds:resgroup ;AN054;
747
748 PUSH DS
749 MOV SI,OFFSET RESGROUP:COMSPECT
750 MOV CX,14
751
752 MOV AL,ES:[DI-1]
753
754;;;; IF KANJI 3/3/KK
755 OR AH,AH
756 JNZ INOTROOT ; Last char was KANJI second byte, might be '\'
757;;;; ENDIF 3/3/KK
758
759 CALL PATHCHRCMPR
760 JNZ INOTROOT
761 INC SI ; Don't make a double /
762 DEC CX
763
764INOTROOT:
765 REP MOVSB
766
767 MOV DX,[ECOMLOC] ; Now lets make sure its good!
768 PUSH ES
769 POP DS
770
771 MOV AX,OPEN SHL 8
772 INT int_command ; Open COMMAND.COM
773 POP DS
774 JC SETCOMSRBAD ; No COMMAND.COM here
775 MOV BX,AX ; Handle
776 MOV AH,CLOSE
777 INT int_command ; Close COMMAND.COM
778
779SETCOMSRRET:
780 POP CX
781 POP SI
782 POP DS ;AN054;
783 assume ds:resgroup ;AN054;
784
785ARGSDONEJ2:
786 PUSH CS ;AN000; Make sure local ES is
787 POP ES ;AN000; restored
788 JMP parse_command_line ;AC000; continue parsing command line
789
790SETCOMSRBAD:
791 MOV DX,BADCOMLKMES_ptr ;AC000; get message number
792 invoke triageError
793 cmp ax, 65
794 jnz doprt
795 mov dx,BADCOMACCMES_ptr ;AC000; get error message number
796doprt:
797 call print_message
798 MOV SI,OFFSET RESGROUP:COMSPECT
799 MOV DI,[ECOMLOC]
800 MOV CX,14
801 REP MOVSB ; Get my default back
802
803 JMP SHORT SETCOMSRRET
804
805;*********************************
806; PARSING ENDS HERE
807;*********************************
808
809ARGSDONE:
810 mov es,[envirseg] ;AC000; get environment back
811 ASSUME ES:ENVIRONMENT ;AN000;
812;AD060; cmp ext_msg,set_extended_msg ;AN000; was /msg specified?
813;AD060; jnz check_permcom ;AN000; No, go check permcom
814;AD060; cmp [permcom],0 ;AN000; Yes - was permcom set?
815;AD060; jz permcom_error ;AN000; No - error cannot have /MSG without /P
816
817;AD060; mov ah,multdos ;AN000; set up to call DOS through int 2fh
818;AD060; mov al,message_2f ;AN000; call for message retriever
819;AD060; mov dl,set_extended_msg ;AN000; set up extended error message address
820;AD060; push es ;AN016; save environment segment
821;AD060; push cs ;AN016; get local segment to ES
822;AD060; pop es ;AN016;
823;AD060; mov di,offset resgroup:extended_msg_start ;AN000; start address
824;AD060; int 2fh ;AN000;
825;AD060; pop es ;AN016; restore environment segment
826;AD060; mov di,offset resgroup:extmsgend+15 ;AN000; get address of resident end
827;AD060; mov [resmsgend],di ;AN000; save it
828;AD060; call sysloadmsg ;AN000; load message addresses
829;AD060; jmp short process_permcom ;AN000; now go process /P switch
830
831;AD060;permcom_error:
832;AD060; mov disp_class,parse_msg_class ;AN000; set up parse error msg class
833;AD060; mov dx,LessArgs_Ptr ;AN000; get message number for "Required parameter missing"
834;AD060; call print_message ;AN000; issue error message
835;AD060; jmp short comreturns ;AN000; we already know /P wasn't entered
836
837;AD060;check_permcom:
838 CMP [PERMCOM],0
839 JZ COMRETURNS
840
841;AD060;process_permcom:
842 PUSH ES ; Save environment pointer
843 MOV AH,SET_CURRENT_PDB
844 MOV BX,DS
845 MOV ES,BX
846 INT int_command ; Current process is me
847 MOV DI,PDB_Exit ; Diddle the addresses in my header
848 MOV AX,OFFSET RESGROUP:LODCOM
849 STOSW
850 MOV AX,DS
851 STOSW
852 MOV AX,OFFSET RESGROUP:CONTC
853 STOSW
854 MOV AX,DS
855 STOSW
856 MOV AX,OFFSET RESGROUP:DskErr
857 STOSW
858 MOV AX,DS
859 STOSW
860 MOV WORD PTR DS:[PDB_Parent_PID],DS ; Parent is me forever
861
862 MOV DX,OFFSET RESGROUP:INT_2E
863 MOV AX,(SET_INTERRUPT_VECTOR SHL 8) OR 02EH
864 INT int_command ;Set magic interrupt
865 POP ES ;Remember environment
866
867COMRETURNS:
868 MOV AX,WORD PTR DS:[PDB_Parent_PID]
869 MOV [PARENT],AX ; Save parent
870 MOV WORD PTR DS:[PDB_Parent_PID],DS ; Parent is me
871 MOV AX,WORD PTR DS:[PDB_JFN_Table]
872 MOV [IO_SAVE],AX ; Get the default stdin and out
873 MOV WORD PTR [COM_PTR+2],DS ; Set all these to resident
874 MOV WORD PTR [COM_FCB1+2],DS
875 MOV WORD PTR [COM_FCB2+2],DS
876 MOV DI,OFFSET RESGROUP:COMSPEC
877
878 MOV SI,[ECOMLOC]
879 CMP BYTE PTR [CHUCKENV],0
880
881 MOV AX,DS ; XCHG ES,DS
882 PUSH ES
883 POP DS
884 MOV ES,AX
885
886 JZ COPYCOMSP ; All set up for copy
887
888 PUSH CS
889 POP DS
890
891 MOV SI,OFFSET RESGROUP:COMSPSTRING
892 PUSH ES
893 PUSH DI
894 CALL IFINDE
895 MOV SI,DI
896 PUSH ES
897 POP DS
898 POP DI
899 POP ES
900 JNC COPYCOMSP
901
902COMSPECNOFND:
903 MOV SI,CS:[ECOMLOC] ;AC062
904 ADD SI,OFFSET RESGROUP:PATHSTRING
905 PUSH CS
906 POP DS
907
908assume es:resgroup
909COPYCOMSP:
910 mov es:comspec_print,di ; Save ptr to beginning of comspec path
911 cmp byte ptr [si+1],':' ; Is there a drive specifier in comspec
912 jnz COPYCOMSPLOOP ; If not, do not skip over first 2 bytes
913 add es:comspec_print,2
914
915COPYCOMSPLOOP:
916 LODSB
917 STOSB
918 OR AL,AL
919 JNZ COPYCOMSPLOOP
920 mov es:comspec_end,di ; Save ptr to end of comspec path
921 dec es:comspec_end
922 mov ah,es:comdrv
923 add ah,'A'-1
924 mov es:cpdrv,ah ; Load drive letter in comprmt2
925assume es:environment
926
927 call setup_for_messages ;AN060; set up parse and extended error messages
928 PUSH CS
929 POP DS
930 MOV BX,[RESMSGEND] ;AC000; get end of resident
931 MOV CL,4
932 SHR BX,CL
933Public EnvMaximum
934EnvMaximum:
935;
936; NOTE: The transient has to loaded directly after shrinking to the
937; resident size.
938; There is an assumption made when loading the transient that it
939; still intact after the resident portion.
940; If any other ALLOC/DEALLOC/SETBLOCK operations are performed
941; inbetween, then there is a real good chance that the non-resident
942; portion will be overwritten by arena information.
943;
944 MOV AH,SETBLOCK
945 INT int_command ; Shrink me to the resident only
946;
947; Load in the transient and compute the checksum. We may do this in one of
948; two ways: First, cheat and use the transient loading code that exists in
949; the resident piece. This may be OK except that it will hit the disk.
950;
951; But we do not need to hit the disk! The transient is already loaded but is
952; in the wrong place. We need to block transfer it up to the correct spot.
953;
954GOTENVIR:
955 MOV TrnMvFlg, 1 ; Indicate that transient has been moved
956 PUSH ES
957 MOV SI,OFFSET RESGroup:TranStart
958 MOV DI,0
959 mov ES,Trnseg
960 MOV CX,OFFSET TRANGROUP:TRANSPACEEND
961;
962; We need to ensure that we do not have the potential of overwriting our
963; existing code in this move
964; It is OK to move if (SI+CX+Segment of Transient < TrnSeg).
965;
966 push cx
967 mov ax,cx ; Get size of transient in bytes
968 add ax,si ; Calculate end of transient section
969 mov cl,4
970 shr ax,cl ; Convert to paragraphs
971 inc ax ; Round up (for partial paragraph)
972 mov cx,ds
973 add ax,cx ; Add in current segment
974 cmp ax,Trnseg ; See if there is overlap
975 pop cx
976; If we are too close to be safe, call LOADCOM instead of moving the code.
977 jb Ok_To_Move
978 invoke LOADCOM
979 jmp short Trans_Loaded
980Ok_To_Move:
981;
982; Everything is set for an upward move. WRONG! We must move downward.
983;
984 ADD SI,CX
985 DEC SI
986 ADD DI,CX
987 DEC DI
988 STD
989 REP MOVSB
990 CLD
991
992Trans_Loaded:
993 POP ES
994
995 INVOKE CHKSUM ; Compute the checksum
996 MOV [SUM],DX ; Save it
997
998 CMP BYTE PTR [PRDATTM],0 ;eg
999 JNZ NOBATCHSEG ;eg Don't do AUTOEXEC or date time
1000;
1001; Allocate batch segment for D:/autoexec.bat + no arguments
1002;
1003 MOV BX,((SIZE BatchSegment) + 15 + 1 + 0Fh)/16 ;eg
1004 MOV AH,ALLOC ;eg
1005 INT int_command ;eg
1006 JC NOBATCHSEG ;eg didn't allocate - pretend no batch
1007 MOV BATCH,AX ;eg save batch segment
1008
1009NOBATCHSEG:
1010 MOV BX, 0FFFFH ; Get size of largest block for env
1011 MOV AH, ALLOC
1012 INT int_command
1013
1014; Only allocate maximum 64K worth of environment
1015
1016 SUB BX,TRNSIZE ;eg subtract # of transient paragraphs
1017 SUB BX,128 ;eg make sure we have 2K left
1018 MOV EnvMax, BX
1019 CMP BX, 4096 ; 64K = 4096 paragraphs
1020 JB MAXOK
1021 MOV BX, 4096-1
1022 MOV EnvMax, BX
1023MAXOK:
1024
1025 MOV AH, ALLOC ; Get max size
1026 INT int_command
1027
1028 mov bx,[envirseg] ;g get old environment segment
1029 mov oldenv,bx ;g save it
1030 mov usedenv,0 ;g initialize env size counter
1031 MOV DS,bx
1032 ASSUME DS:NOTHING
1033 MOV [ENVIRSEG],AX
1034 MOV ES,AX
1035 XOR SI,SI
1036 MOV DI,SI
1037 MOV BX,EnvMax ; Copy over as much of the environment
1038 ; as possible
1039 SHL BX,1
1040 SHL BX,1
1041 SHL BX,1
1042 SHL BX,1
1043 MOV EnvMax, BX ; Convert EnvMax to bytes
1044 DEC BX ; Dec by one to leave room for double 0
1045 XOR DX,DX ; Use DX to indicate that there was
1046 ; no environment size error.
1047Public Nxtstr
1048Nxtstr:
1049 CALL GetStrLen ; Get the size of the current env string
1050 push ds ;g get addressability to environment
1051 push cs ;g counter
1052 pop ds ;g
1053 ASSUME DS:RESGROUP
1054 add usedenv,cx ;g add the string length to env size
1055 pop ds ;g
1056 ASSUME DS:NOTHING
1057 CMP CX,1 ; End of environment was encountered.
1058 JZ EnvExit
1059 SUB BX,CX
1060 JAE OKCpyStr ; Can't fit in all of enviroment.
1061 INC DX ; Out of env space msg must be displayed
1062 JMP EnvExit
1063OKCpyStr:
1064 JMP Nxtstr
1065EnvExit:
1066
1067 PUSH CS
1068 POP DS
1069 ASSUME DS:RESGroup
1070 OR DX,DX ; DX will be non-zero if error
1071 JZ EnvNoErr
1072 MOV DX,OUTENVERR_ptr ;AC000; get message number
1073 call print_message
1074
1075EnvNoErr:
1076 ; BX now has the left over size of the maximum environment
1077 ; We want to shrink the environment down to the minimum size
1078 ; Set the environment size to max(Envsiz,Env used)
1079
1080 MOV CX, EnvMax
1081 SUB CX, BX ; CX now has the environment used
1082 ADD CX, 16 ; Round up to next paragraph
1083 SHR CX, 1
1084 SHR CX, 1
1085 SHR CX, 1
1086 SHR CX, 1
1087 CMP CX, Envsiz ; Is environment used > Envsiz
1088 JB EnvSet
1089 MOV Envsiz, CX
1090EnvSet:
1091 MOV BX, Envsiz ; Set environment to size needed
1092 mov ax,es ;eg get environment segment
1093 add ax,bx ;eg add number of environment paragraphs
1094 cmp ax,initend ;eg does this go past end of init?
1095 ja envsetok ;eg yes - do the setblock
1096 mov ax,es ;eg no - get back the environment segment
1097 mov bx,initend ;eg get the segment at end of init
1098 sub bx,ax ;eg setblock envir segment to end of init code
1099 mov resetenv,1 ;eg set flag so we know to set envir later
1100
1101envsetok:
1102 MOV AH, SETBLOCK
1103 INT int_command
1104
1105 IF MSVER
1106 CMP [SINGLECOM],0
1107 JNZ NOPHEAD ; Don't print header if SINGLECOM
1108 MOV DX,HEADER_ptr ;AC000; get message number
1109 call print_message
1110NOPHEAD:
1111 ENDIF
1112
1113 CMP [BATCH],0 ;eg did we set up a batch segment?
1114 JNZ dodate ;eg yes - go initialize it
1115 JMP NODTTM ; Don't do AUTOEXEC or date time
1116;
1117; Allocate batch segment for D:/autoexec.bat + no arguments
1118;
1119dodate:
1120 MOV AX,BATCH ;eg get batch segment
1121 MOV EchoFlag,3 ; set batch echo
1122 MOV NEST,1 ; g set nest flag to 1 batch
1123 MOV ES,AX
1124;
1125; Initialize the segment
1126;
1127 XOR DI,DI
1128 MOV AL,BatchType
1129 STOSB
1130 MOV AL,1 ; G initialize echo for batch exit
1131 STOSB ; G
1132 XOR AX,AX ; initialize to zero
1133 STOSW ; G batch segment of last job - batlast
1134 STOSW ; G segment for FOR
1135 STOSB ; G FOR flag
1136 STOSW ; position in file - batseek
1137 STOSW
1138;
1139; Clean out the parameters
1140;
1141 MOV AX,-1 ; initialize to no parameters
1142 MOV CX,10
1143 REP STOSW
1144;
1145; Decide whether we should grab the default drive
1146;
1147 CMP BYTE PTR [AUTOBAT],0
1148
1149 JNZ NOAUTSET
1150 MOV AH,GET_DEFAULT_DRIVE
1151 INT int_command
1152 ADD AL,ucasea
1153
1154 MOV [AUTOBAT],AL
1155 MOV [KAUTOBAT],AL ;AN000; 3/3/KK
1156
1157NOAUTSET:
1158;
1159; Copy in the batch file name (including NUL)
1160;
1161 MOV SI,OFFSET RESGROUP:AUTOBAT
1162 MOV CX,8
1163 REP MOVSW
1164 MOVSB ;AN027; move in carraige return to terminate string
1165
1166 MOV DX,OFFSET RESGROUP:AUTOBAT
1167 MOV AX,OPEN SHL 8
1168 INT int_command ; See if AUTOEXEC.BAT exists
1169 JC NOABAT
1170 MOV BX,AX
1171 MOV AH,CLOSE
1172 INT int_command
1173 JMP DRV0 ;AC000; go process autoexec
1174
1175NOABAT:
1176 push ax
1177 call setup_seg
1178 mov word ptr [triage_add+2],ax
1179 pop ax
1180 call triage_add
1181 cmp ax, 65
1182 jz AccDenErr ;AN000; was network access denied
1183
1184
1185; If AUTOEXEC.BAT is not found, then check for KAUTOEXE.BAT. Changed
1186; by Ellen to check only when in Korea. The country information
1187; returned will overlay the old parse data area, but we don't care
1188; since we won't need the parse information or country information.
1189; We only care about the country code returned in BX.
1190
1191 MOV DX,OFFSET RESGROUP:INTERNAT_INFO ;AN000; Set up internat vars
1192 MOV AX,INTERNATIONAL SHL 8 ;AN000; get country dependent info
1193 INT 21H ;AN000;
1194 JC NOKABAT ;AN000; Error - don't bother with it
1195 CMP BX,KOREA_COUNTRY_CODE ;AN000; Are we speaking Korean?
1196 JNZ OPENERR ;AN000; No, don't check for KAUTOEXE
1197
1198 MOV DI, OFFSET BatFile ;AN000; 3/3/KK
1199 MOV SI,OFFSET RESGROUP:KAUTOBAT ;AN000; Another trial to do 3/3/KK
1200 MOV CX,8 ;AN000; auto execution for the 3/3/KK
1201 REP MOVSW ;AN000; non-English country 3/3/KK
1202 MOVSB ;AN027; move in carraige return to terminate string
1203 MOV DX,OFFSET RESGROUP:KAUTOBAT ;AN000; 3/3/KK
1204 MOV AX,OPEN SHL 8 ;AN000; 3/3/KK
1205 INT int_command ;AN000; See if KAUTOEXE.BAT exists 3/3/KK
1206 JC NOKABAT ;AN000; 3/3/KK
1207 MOV BX,AX ;AN000; 3/3/KK
1208 MOV AH,CLOSE ;AN000; 3/3/KK
1209 INT int_command ;AN000; 3/3/KK
1210 JMP SHORT DRV0 ;AN000; 3/3/KK
1211
1212NOKABAT: ;AN000; 3/3/KK
1213 call triage_add ;AN000; get extended error
1214 cmp ax, 65 ;AN000; network access denied?
1215 jnz openerr ;AN000; no - go deallocate batch
1216
1217AccDenErr: ;AN000; yes - put out message
1218 mov DX,ACCDEN ;AC000; get message number
1219 call print_message
1220
1221openerr:
1222 MOV ES,[BATCH] ; Not found--turn off batch job
1223 MOV AH,DEALLOC
1224 INT int_command
1225 MOV [BATCH],0 ; AFTER DEALLOC in case of ^C
1226 MOV EchoFlag,1
1227 mov nest,0 ;g indicate no batch in progress
1228
1229DODTTM:
1230 MOV AX,OFFSET TRANGROUP:DATINIT
1231 MOV WORD PTR[INITADD],AX
1232 MOV AX,[TRNSEG]
1233 MOV WORD PTR[INITADD+2],AX
1234 CALL DWORD PTR [INITADD]
1235
1236NODTTM:
1237
1238 IF IBMVER
1239 CMP [SINGLECOM],0
1240 JNZ DRV0 ; Don't print header if SINGLECOM
1241 MOV DX,HEADER_ptr ;AC000; get message number
1242 call print_message
1243 ENDIF
1244
1245DRV0: ; Reset APPEND state
1246 push ds ;AN042; save data segment
1247 push cs ;AN042; Get local segment into DS
1248 pop ds ;AN042;
1249 mov ax,AppendSetState ;AN042; Set the state of Append
1250 mov bx,Append_state ;AN042; back to the original state
1251 int 2fh ;AN042;
1252 pop ds ;AN042; get data segment back
1253 JMP ENDINIT ;G Finish initializing
1254
1255;
1256; Get length of string pointed to by DS:SI. Length includes NULL.
1257; Length is returned in CX
1258;
1259GetStrLen:
1260 xor cx,cx
1261NxtChar:
1262 lodsb
1263 inc cx
1264 or al,al
1265 jnz NxtChar
1266 ret
1267;
1268; If the transient has been loaded in TranSeg, then we need to use that
1269; segment for calls to routines in the transient area. Otherwise, the current
1270; code segment is used
1271; Segment returned in AX.
1272;
1273setup_seg:
1274 mov ax,[trnseg]
1275 cmp TrnMvFlg, 1 ; Has transient portion been moved
1276 jz setup_end
1277 push bx
1278 mov bx,cs
1279 mov ax,OFFSET RESGroup:TranStart
1280 shr ax,1
1281 shr ax,1
1282 shr ax,1
1283 shr ax,1
1284 add ax,bx
1285 pop bx
1286setup_end:
1287 ret
1288
1289print_message:
1290 push ax
1291 PUSH DS ;AN000; save data and extra segment
1292 PUSH ES ;AN000; registers
1293 MOV AX,CS ;AN000; get local segment
1294 MOV ES,AX ;AN000; set ES and DS to point to it
1295 MOV DS,AX ;AN000;
1296;AD054; PUSH BX ;AC000; save BX register
1297;AD054; PUSH CX ;AC000; save CX register
1298;AD054; PUSH DX ;AC000; save DX register
1299;AD054; MOV AX,DX ;AC000; get message number
1300;AD054; MOV DH,DISP_CLASS ;AC000; get display class
1301;AD054; MOV DL,NO_CONT_FLAG ;AN000; set control flags off
1302;AD054; MOV BX,NO_HANDLE_OUT ;AC000; set message handler to use function 1-12
1303;AD054; XOR CH,CH ;AC000; clear upper part of cx
1304;AD054; MOV CL,NUMBER_SUBST ;AC000; set number of substitutions
1305;AD054; invoke SYSDISPMSG ;AC000; display the message
1306;AD054; MOV DISP_CLASS,UTIL_MSG_CLASS ;AC000; reset display class
1307;AD054; MOV NUMBER_SUBST,NO_SUBST ;AC000; reset number of substitutions
1308;AD054; POP DX ;AC000; restore registers
1309;AD054; POP CX ;AC000;
1310;AD054; POP BX ;AC000;
1311 invoke rprint ;AC054;
1312
1313 POP ES ;AN000;
1314 POP DS ;AN000;
1315 pop ax
1316 ret
1317
1318PATHCHRCMPR:
1319 push dx
1320 mov dl,fslash
1321 CMP [RSWITCHAR],dl
1322 JZ RNOSLASHT
1323 CMP AL,dl
1324 JZ RET41
1325RNOSLASHT:
1326 CMP AL,bslash
1327RET41:
1328 pop dx
1329 RET
1330
1331
1332IFINDE:
1333 CALL IFIND ; FIND THE NAME
1334 JC IFIND2 ; CARRY MEANS NOT FOUND
1335 JMP ISCASB1 ; SCAN FOR = SIGN
1336;
1337; On return of FIND1, ES:DI points to beginning of name
1338;
1339IFIND:
1340 CLD
1341 CALL ICOUNT0 ; CX = LENGTH OF NAME
1342 MOV ES,[ENVIRSEG]
1343 XOR DI,DI
1344
1345IFIND1:
1346 PUSH CX
1347 PUSH SI
1348 PUSH DI
1349
1350IFIND11:
1351 LODSB
1352
1353;;;; IF KANJI 3/3/KK
1354 INVOKE ITESTKANJ
1355 JZ NOTKANJ4
1356 DEC SI
1357 LODSW
1358 INC DI
1359 INC DI
1360 CMP AX,ES:[DI-2]
1361 JNZ IFIND12
1362 DEC CX
1363 LOOP IFIND11
1364 JMP SHORT IFIND12
1365
1366NOTKANJ4:
1367;;;; ENDIF 3/3/KK
1368
1369 CALL IUPCONV
1370 INC DI
1371 CMP AL,ES:[DI-1]
1372 JNZ IFIND12
1373 LOOP IFIND11
1374
1375IFIND12:
1376 POP DI
1377 POP SI
1378 POP CX
1379 JZ IFIND2
1380 PUSH CX
1381 CALL ISCASB2 ; SCAN FOR A NUL
1382 POP CX
1383 CMP BYTE PTR ES:[DI],0
1384 JNZ IFIND1
1385 STC ; INDICATE NOT FOUND
1386
1387IFIND2:
1388 RET
1389
1390ICOUNT0:
1391 PUSH DS
1392 POP ES
1393 MOV DI,SI
1394
1395 PUSH DI ; COUNT NUMBER OF CHARS UNTIL "="
1396 CALL ISCASB1
1397 JMP SHORT ICOUNTX
1398 PUSH DI ; COUNT NUMBER OF CHARS UNTIL NUL
1399 CALL ISCASB2
1400
1401ICOUNTX:
1402 POP CX
1403 SUB DI,CX
1404 XCHG DI,CX
1405 RET
1406
1407ISCASB1:
1408 MOV AL,equalsign ; SCAN FOR AN =
1409 JMP SHORT ISCASBX
1410
1411ISCASB2:
1412 XOR AL,AL ; SCAN FOR A NUL
1413
1414ISCASBX:
1415 MOV CX,100H
1416 REPNZ SCASB
1417 RET
1418
1419
1420; ****************************************************************
1421; *
1422; * ROUTINE: IUPCONV (ADDED BY EMG 4.00)
1423; *
1424; * FUNCTION: This routine returns the upper case equivalent of
1425; * the character in AL from the file upper case table
1426; * in DOS if character if above ascii 128, else
1427; * subtracts 20H if between "a" and "z".
1428; *
1429; * INPUT: DS set to resident
1430; * AL char to be upper cased
1431; * FUCASE_ADDR set to the file upper case table
1432; *
1433; * OUTPUT: AL upper cased character
1434; *
1435; ****************************************************************
1436
1437assume ds:resgroup ;AN000;
1438
1439iupconv proc near ;AN000;
1440
1441 cmp al,80h ;AN000; see if char is > ascii 128
1442 jb other_fucase ;AN000; no - upper case math
1443 sub al,80h ;AN000; only upper 128 chars in table
1444 push ds ;AN000;
1445 push bx ;AN000;
1446 lds bx,dword ptr fucase_addr+1 ;AN000; get table address
1447 add bx,2 ;AN000; skip over first word
1448 xlat ds:byte ptr [bx] ;AN000; convert to upper case
1449 pop bx ;AN000;
1450 pop ds ;AN000;
1451 jmp short iupconv_end ;AN000; we finished - exit
1452
1453other_fucase: ;AN000;
1454 cmp al,lcasea ;AC000; if between "a" and "z",
1455 jb iupconv_end ;AC000; subtract 20h to get
1456 cmp al,lcasez ;AC000; upper case equivalent.
1457 ja iupconv_end ;AC000;
1458 sub al,20h ;AC000; Change lower-case to upper
1459
1460iupconv_end: ;AN000;
1461 ret
1462
1463iupconv endp ;AN000;
1464
1465init_contc_specialcase:
1466 ; This routine is called if control-C
1467 add sp,6 ; is type during the date/time prompt
1468 push si ; at initialization time. The desired
1469 mov si,dx ; response is to make it look like the
1470 mov word ptr [si+1],0d00h ; user typed <CR> by "popping" the
1471 pop si ; INT 21h stuff off the stack, putting
1472 iret ; a <CR> in the user's buffer, and
1473 ; returning directly to the user.
1474 ; In this case the user is TCODE.
1475
1476; ****************************************************************
1477; *
1478; * ROUTINE: GET_MSG_PTR
1479; *
1480; * FUNCTION: Fill in translatable char table starting at
1481; * at Abort_char with translated characters.
1482; Set segments of resident messages.
1483; *
1484; * INPUT: none
1485; *
1486; * OUTPUT: none
1487; *
1488; ****************************************************************
1489
1490CHAR_START EQU 201 ;AN000; first character translate is 1
1491CHAR_END EQU 207 ;AN000; last is 6
1492
1493GET_MSG_PTR PROC NEAR ;AN000;
1494
1495 MOV AX,CHAR_START ;AN000; get first char translation
1496 MOV BX,OFFSET RESGROUP:ABORT_CHAR ;AN000; get first char offset
1497MOVEMES: ;AN000;
1498 MOV DH,-1 ;AN000; utility message
1499 INVOKE SYSGETMSG ;AN000; get the offset of the char
1500 MOV CL,BYTE PTR [SI] ;AN000; get the character in CL
1501 MOV BYTE PTR [BX],CL ;AN000; put the character in the table
1502 INC BX ;AN000; point to next position in table
1503 INC AX ;AN000; increment message number
1504 CMP AX,CHAR_END ;AN000; are we at the end?
1505 JNZ MOVEMES ;AN000; no - keep loading
1506
1507 MOV AX,DS ;AN000; get data segment
1508 MOV DRVNUM_OP_SEG,AX ;AN000; set up segments for
1509 MOV DRVNUM_OP_SEG2,AX ;AN000; message substitutions
1510 MOV DEVE_OP_SEG,AX ;AN000; used in the resident
1511 MOV DEVE_OP_SEG2,AX ;AN000; portion of command
1512 MOV ERR15_OP_SEG,AX ;AN000; during initialization
1513 MOV ERR15_OP_SEG2,AX ;AN000; to save resident
1514 MOV ERR15_OP_SEG3,AX ;AN000; space.
1515 MOV BADFAT_OP_SEG,AX ;AN000;
1516 MOV COMPRMT1_SEG,AX ;AN000;
1517 MOV COMPRMT1_SEG2,AX ;AN000;
1518
1519 RET ;AN000;
1520
1521GET_MSG_PTR ENDP ;AN000;
1522
1523
1524; ****************************************************************
1525; *
1526; * ROUTINE: Setup_for_messages
1527; *
1528; * FUNCTION: Sets up system for PARSE and EXTENDED ERROR
1529; * messages as follows:
1530; *
1531; * IF /P and /MSG are entered
1532; * keep PARSE and EXTENDED ERRORS in memory
1533; * ELSE IF /P is entered
1534; * use PARSE and EXTENDED ERRORS on disk
1535; * remove PARSE ERRORS from memory
1536; * ELSE
1537; * remove PARSE ERRORS from memory
1538; * ENDIF
1539; *
1540; * INPUT: PERMCOM Set up with user input
1541; * EXT_MSG Set up with user input
1542; * System set up to retain PARSE ERRORS
1543; *
1544; * OUTPUT: registers unchanged
1545; *
1546; ****************************************************************
1547
1548
1549setup_for_messages proc near ;AN060;
1550
1551 push ds ;AN060; save data segment
1552 push es ;AN060; save environment segment
1553 push ax ;AN060;
1554 push dx ;AN060;
1555 push di ;AN060;
1556 mov ax,cs ;AN060; get local segment to ES and DS
1557 mov ds,ax ;AN060;
1558 mov es,ax ;AN060;
1559
1560 cmp [permcom],0 ;AN060; was permcom set?
1561 jz no_permcom ;AN060; No - don't worry about messages
1562 cmp ext_msg,set_extended_msg ;AN060; was /msg specified?
1563 jz permcom_slash_msg ;AN060; Yes - go process it
1564 push es ;AN060;
1565 mov ax,1 ;AN060; Set ES to 1 as a flag to the message
1566 mov es,ax ;AN060; services that messages are on disk
1567 mov di,offset resgroup:extended_msg_start-100h ;AN060; start address
1568 call set_ext_2f ;AN060; set extended error address
1569 mov di,offset resgroup:parse_msg_start-0100h ;AN060; start address
1570 call set_parse_2f ;AN060; set parse error address
1571 pop es ;AN060;
1572 IF2 ;AN060;;
1573 IFNDEF READ_DISK_INFO ;AN060;;
1574 Extrn READ_DISK_PROC:Far ;AN060;;
1575 ENDIF ;AN060;;
1576 ENDIF ;AN060;;
1577 MOV AX,DOS_GET_EXT_PARSE_ADD ;AN060;; 2FH Interface
1578 MOV DL,DOS_SET_ADDR ;AN060;; Set the READ_DISK_PROC address
1579 LEA DI,READ_DISK_PROC ;AN060;;
1580 INT 2FH ;AN060;; Private interface
1581 jmp short permcom_end ;AN060; and exit
1582
1583permcom_slash_msg: ;AN060; Keep messages in memory
1584 mov di,offset resgroup:extended_msg_start ;AN060; start address
1585 call set_ext_2f ;AN060; set the extended message address
1586 mov di,offset resgroup:extmsgend+15 ;AN060; get address of resident end
1587 mov [resmsgend],di ;AN060; save it
1588 jmp short permcom_end ;AN060; exit
1589
1590no_permcom: ;AN060;
1591 cmp ext_msg,set_extended_msg ;AN060; was /msg specified?
1592 jnz no_slash_msg ;AN060; no - no error
1593 mov disp_class,parse_msg_class ;AN060; set up parse error msg class
1594 mov dx,LessArgs_Ptr ;AN060; get message number for "Required parameter missing"
1595 call print_message ;AN060; issue error message
1596
1597no_slash_msg:
1598 mov ax,(multdos shl 8 or message_2f);AN060; reset parse message pointers
1599 mov dl,set_parse_msg ;AN060; set up parse message address
1600 mov di,pars_msg_off ;AN060; old offset of parse messages
1601 mov es,pars_msg_seg ;AN060; old segment of parse messages
1602 int 2fh ;AN060; go set it
1603
1604permcom_end:
1605 call sysloadmsg ;AN060; load message addresses
1606 pop di ;AN060;
1607 pop dx ;AN060;
1608 pop ax ;AN060;
1609 pop es ;AN060; get environment back
1610 pop ds ;AN060;
1611
1612 ret ;AN060;
1613
1614setup_for_messages endp ;AN060;
1615
1616; ****************************************************************
1617; *
1618; * ROUTINE: Set_parse_2f
1619; *
1620; * FUNCTION: Does the INT 2Fh to DOS to set the PARSE
1621; * message address that will later be retrieved
1622; * by the message services.
1623; *
1624; * INPUT: ES set to segment of messages
1625; * DI points to offset of messages
1626; *
1627; * OUTPUT: none
1628; *
1629; ****************************************************************
1630
1631Set_parse_2f proc near ;AN060;
1632
1633 mov ax,(multdos shl 8 or message_2f);AN060; set up to call DOS through int 2fh
1634 mov dl,set_parse_msg ;AN060; set up parse message address
1635 int 2fh ;AN060;
1636
1637 ret ;AN060;
1638
1639Set_parse_2f endp ;AN060;
1640
1641; ****************************************************************
1642; *
1643; * ROUTINE: Set_ext_2f
1644; *
1645; * FUNCTION: Does the INT 2Fh to DOS to set the EXTENDED
1646; * message address that will later be retrieved
1647; * by the message services.
1648; *
1649; * INPUT: ES set to segment of messages
1650; * DI points to offset of messages
1651; *
1652; * OUTPUT: none
1653; *
1654; ****************************************************************
1655
1656Set_ext_2f proc near ;AN060;
1657
1658 mov ax,(multdos shl 8 or message_2f);AN060; set up to call DOS through int 2fh
1659 mov dl,set_extended_msg ;AN060; set up extended error message address
1660 int 2fh ;AN060;
1661
1662 ret ;AN060;
1663
1664Set_ext_2f endp ;AN060;
1665
1666
1667ASSUME DS:RESGROUP, ES:RESGROUP
1668
1669.xlist
1670.xcref
1671
1672INCLUDE SYSMSG.INC ;AN000; include message services
1673
1674.list
1675.cref
1676
1677MSG_UTILNAME <COMMAND> ;AN000; define utility name
1678
1679MSG_SERVICES <COMR,NEARmsg,LOADmsg,NOCHECKSTDIN,NOCHECKSTDOUT> ;AC026; include message services macro
1680
1681include msgdcl.inc
1682
1683INIT ENDS
1684
1685 END
HIC SVNT DRACONES