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609 lines
16 KiB
Plaintext
609 lines
16 KiB
Plaintext
$ TITLE('CP/M 3.0 --- REN ')
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ren:
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do;
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/*
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Copyright (C) 1982
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Digital Research
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P.O. Box 579
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Pacific Grove, CA 93950
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*/
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/*
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Revised:
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19 Jan 80 by Thomas Rolander
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14 Sept 81 by Doug Huskey
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23 June 82 by John Knight
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29 Sept 82 by Thomas J. Mason
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03 Dec 82 by Bruce Skidmore
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*/
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declare
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mpmproduct literally '01h', /* requires mp/m */
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cpmversion literally '30h'; /* requires 3.0 cp/m */
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declare
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true literally '0FFh',
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false literally '0',
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forever literally 'while true',
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lit literally 'literally',
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proc literally 'procedure',
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dcl literally 'declare',
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addr literally 'address',
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cr literally '13',
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lf literally '10',
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ctrlc literally '3',
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ctrlx literally '18h',
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bksp literally '8',
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dcnt$offset literally '45h',
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searcha$offset literally '47h',
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searchl$offset literally '49h',
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hash1$offset literally '00h',
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hash2$offset literally '02h',
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hash3$offset literally '04h';
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declare plm label public;
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/**************************************
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* *
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* B D O S INTERFACE *
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* *
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**************************************/
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mon1:
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procedure (func,info) external;
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declare func byte;
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declare info address;
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end mon1;
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mon2:
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procedure (func,info) byte external;
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declare func byte;
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declare info address;
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end mon2;
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mon3:
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procedure (func,info) address external;
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declare func byte;
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declare info address;
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end mon3;
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declare cmdrv byte external; /* command drive */
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declare fcb (1) byte external; /* 1st default fcb */
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declare fcb16 (1) byte external; /* 2nd default fcb */
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declare pass0 address external; /* 1st password ptr */
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declare len0 byte external; /* 1st passwd length */
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declare pass1 address external; /* 2nd password ptr */
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declare len1 byte external; /* 2nd passwd length */
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declare tbuff (1) byte external; /* default dma buffer */
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/**************************************
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* *
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* B D O S Externals *
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* *
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**************************************/
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read$console:
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procedure byte;
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return mon2 (1,0);
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end read$console;
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conin:
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procedure byte;
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return mon2(6,0ffh);
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end conin;
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printchar:
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procedure (char);
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declare char byte;
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call mon1 (2,char);
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end printchar;
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print$buf:
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procedure (buffer$address);
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declare buffer$address address;
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call mon1 (9,buffer$address);
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end print$buf;
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read$console$buf:
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procedure (buffer$address,max) byte;
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declare buffer$address address;
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declare new$max based buffer$address byte;
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declare max byte;
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new$max = max;
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call mon1 (10,buffer$address);
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buffer$address = buffer$address + 1;
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return new$max; /* actually number of chars input */
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end read$console$buf;
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check$con$stat:
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procedure byte;
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return mon2 (11,0);
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end check$con$stat;
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version: procedure address;
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/* returns current cp/m version # */
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return mon3(12,0);
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end version;
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search$first:
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procedure (fcb$address) byte;
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declare fcb$address address;
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return mon2 (17,fcb$address);
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end search$first;
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search$next:
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procedure byte;
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return mon2 (18,0);
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end search$next;
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delete$file:
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procedure (fcb$address);
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declare fcb$address address;
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call mon1 (19,fcb$address);
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end delete$file;
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rename$file:
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procedure (fcb$address) address;
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declare fcb$address address;
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return mon3 (23,fcb$address);
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end rename$file;
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setdma: procedure(dma);
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declare dma address;
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call mon1(26,dma);
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end setdma;
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/* 0ff => return BDOS errors */
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return$errors:
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procedure(mode);
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declare mode byte;
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call mon1 (45,mode);
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end return$errors;
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declare
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parse$fn structure (
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buff$adr address,
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fcb$adr address);
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parse: procedure (pfcb) address external;
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declare pfcb address;
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end parse;
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declare scbpd structure
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(offset byte,
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set byte,
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value address);
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getscbbyte:
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procedure (offset) byte;
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declare offset byte;
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scbpd.offset = offset;
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scbpd.set = 0;
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return mon2(49,.scbpd);
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end getscbbyte;
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getscbword:
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procedure (offset) address;
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declare offset byte;
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scbpd.offset = offset;
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scbpd.set = 0;
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return mon3(49,.scbpd);
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end getscbword;
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setscbword:
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procedure (offset,value);
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declare offset byte;
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declare value address;
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scbpd.offset = offset;
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scbpd.set = 0FEh;
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scbpd.value = value;
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call mon1(49,.scbpd);
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end setscbword;
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/**************************************
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* *
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* GLOBAL VARIABLES *
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* *
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**************************************/
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/* Note: there are three fcbs used by
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this program:
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1) new$fcb: the new file name
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(this can be a wildcard if it
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has the same pattern of question
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marks as the old file name)
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Any question marks are replaced
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with the corresponding filename
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character in the old$fcb before
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doing the rename function.
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2) cur$fcb: the file to be renamed
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specified in the rename command.
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(any question marks must correspond
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to question marks in new$fcb).
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3) old$fcb: a fcb in the directory
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matching the cur$fcb and used in
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the bdos rename function. This
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cannot contain any question marks.
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*/
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declare successful lit '0FFh';
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declare failed (*) byte data(cr,lf,'ERROR: Not renamed, $'),
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read$only (*) byte data(cr,lf,'ERROR: Drive read only.$'),
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bad$wildcard (*) byte data('Invalid wildcard.$');
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declare passwd (8) byte;
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declare
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new$fcb$adr address, /* new name */
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new$fcb based new$fcb$adr (32) byte;
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declare cur$fcb (33) byte; /* current fcb (old name) */
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/**************************************
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* *
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* S U B R O U T I N E S *
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* *
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**************************************/
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/* upper case character from console */
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crlf: proc;
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call printchar(cr);
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call printchar(lf);
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end crlf;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* fill string @ s for c bytes with f */
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fill: proc(s,f,c);
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dcl s addr,
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(f,c) byte,
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a based s byte;
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do while (c:=c-1)<>255;
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a = f;
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s = s+1;
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end;
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end fill;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* error message routine */
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error: proc(code);
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declare
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code byte;
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if code = 0 then do;
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call print$buf(.('ERROR: No such file to rename.$'));
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call mon1(0,0);
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end;
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if code=1 then do;
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call print$buf(.(cr,lf,'Disk I/O.$'));
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call mon1(0,0);
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end;
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if code=2 then do;
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call print$buf(.read$only);
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call mon1(0,0);
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end;
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if code = 3 then
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call print$buf(.read$only(15));
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if code = 5 then
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call print$buf(.('Currently Opened.$'));
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if code = 7 then
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call print$buf(.('Bad password.$'));
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if code = 8 then
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call print$buf(.('file already exists$'));
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if code = 9 then do;
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call print$buf(.bad$wildcard);
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call mon1(0,0);
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end;
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end error;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* print file name */
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print$file: procedure(fcbp);
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declare k byte;
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declare typ lit '9'; /* file type */
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declare fnam lit '11'; /* file type */
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declare
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fcbp addr,
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fcbv based fcbp (32) byte;
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do k = 1 to fnam;
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if k = typ then
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call printchar('.');
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call printchar(fcbv(k) and 7fh);
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end;
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end print$file;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* try to rename fcb at old$fcb$adr to name at new$fcb$adr
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return error code if unsuccessful */
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rename:
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procedure(old$fcb$adr) byte;
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declare
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old$fcb$adr address,
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old$fcb based old$fcb$adr (32) byte,
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error$code address,
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code byte;
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call move (16,new$fcb$adr,old$fcb$adr+16);
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call setdma(.passwd); /* password */
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call return$errors(0FFh); /* return bdos errors */
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error$code = rename$file (old$fcb$adr);
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call return$errors(0); /* normal error mode */
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if low(error$code) = 0FFh then do;
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code = high(error$code);
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if code < 3 then
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call error(code);
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return code;
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end;
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return successful;
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end rename;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* upper case character from console */
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ucase: proc(c) byte;
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dcl c byte;
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if c >= 'a' then
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if c < '{' then
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return(c-20h);
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return c;
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end ucase;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* get password and place at fcb + 16 */
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getpasswd: proc;
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dcl (i,c) byte;
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call crlf;
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call print$buf(.('Enter password: ','$'));
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retry:
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call fill(.passwd,' ',8);
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do i = 0 to 7;
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nxtchr:
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if (c:=ucase(conin)) >= ' ' then
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passwd(i)=c;
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if c = cr then do;
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call crlf;
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go to exit;
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end;
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if c = ctrlx then
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goto retry;
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if c = bksp then do;
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if i<1 then
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goto retry;
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else do;
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passwd(i:=i-1)=' ';
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goto nxtchr;
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end;
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end;
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if c = ctrlc then
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call mon1(0,0);
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end;
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exit:
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c = check$con$stat; /* clear raw I/O mode */
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end getpasswd;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* check for wildcard in rename command */
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wildcard: proc byte;
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dcl (i,wild) byte;
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wild = false;
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do i=1 to 11;
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if cur$fcb(i) = '?' then
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if new$fcb(i) <> '?' then do;
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call print$buf(.failed);
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call print$buf(.bad$wildcard);
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call mon1(0,0);
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end;
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else
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wild = true;
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end;
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return wild;
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end wildcard;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* set up new name for rename function */
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set$new$fcb: proc(old$fcb$adr);
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dcl old$fcb$adr address,
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old$fcb based old$fcb$adr (32) byte;
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dcl i byte;
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old$fcb(0) = cur$fcb(0); /* set up drive */
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do i=1 to 11;
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if cur$fcb(i) = '?' then
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new$fcb(i) = old$fcb(i);
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end;
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end set$new$fcb;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* try deleting files one at a time */
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single$file:
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procedure;
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declare (code,dcnt) byte;
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declare (old$fcb$adr,savdcnt,savsearcha,savsearchl) addr;
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declare old$fcb based old$fcb$adr (32) byte;
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declare (hash1,hash2,hash3) address;
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file$err: procedure(fcba);
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dcl fcba address;
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call print$buf(.failed);
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call print$file(fcba);
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call printchar(' ');
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call error(code);
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end file$err;
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call setdma(.tbuff);
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if (dcnt:=search$first(.cur$fcb)) = 0ffh then
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call error(0);
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do while dcnt <> 0ffh;
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old$fcb$adr = shl(dcnt,5) + .tbuff;
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savdcnt = getscbword(dcnt$offset);
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savsearcha = getscbword(searcha$offset);
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savsearchl = getscbword(searchl$offset);
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/* save searched fcb's hash code (5 bytes) */
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hash1 = getscbword(hash1$offset);
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hash2 = getscbword(hash2$offset);
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hash3 = getscbword(hash3$offset); /* saved one extra byte */
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call set$new$fcb(old$fcb$adr);
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if (code:=rename(old$fcb$adr)) = 8 then do;
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call file$err(new$fcb$adr);
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call print$buf(.(', delete (Y/N)?$'));
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if ucase(read$console) = 'Y' then do;
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call delete$file(new$fcb$adr);
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code = rename(old$fcb$adr);
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end;
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else
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go to next;
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end;
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if code = 7 then do;
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call file$err(old$fcb$adr);
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call getpasswd;
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code = rename(old$fcb$adr);
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end;
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if code <> successful then
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call file$err(old$fcb$adr);
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else do;
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call crlf;
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call print$file(new$fcb$adr);
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call printchar('=');
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call print$file(old$fcb$adr);
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end;
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next:
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call setdma(.tbuff);
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call setscbword(dcnt$offset,savdcnt);
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call setscbword(searcha$offset,savsearcha);
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call setscbword(searchl$offset,savsearchl);
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/* restore hash code */
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call setscbword(hash1$offset,hash1);
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call setscbword(hash2$offset,hash2);
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call setscbword(hash3$offset,hash3);
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if .cur$fcb <> savsearcha then /*restore orig fcb if destroyed*/
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call move(16,.cur$fcb,savsearcha);
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dcnt = search$next;
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end;
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end single$file;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/* invalid rename command */
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bad$entry: proc;
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call print$buf(.failed);
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call print$buf(.('ERROR: Invalid File.',cr,lf,'$'));
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call mon1(0,0);
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end bad$entry;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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finish$parse: procedure;
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parse$fn.buff$adr = parse$fn.fcb$adr+1; /* skip delimiter */
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parse$fn.fcb$adr = .cur$fcb;
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parse$fn.fcb$adr = parse(.parse$fn);
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call move(8,.cur$fcb+16,.passwd);
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end finish$parse;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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input$found: procedure (buffer$adr) byte;
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declare buffer$adr address;
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declare char based buffer$adr byte;
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do while (char = ' ') or (char = 9); /* tabs & spaces */
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buffer$adr = buffer$adr + 1;
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end;
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if char = 0 then /* eoln */
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return false; /* input not found */
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else
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return true; /* input found */
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end input$found;
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/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/**************************************
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* *
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* M A I N P R O G R A M *
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* *
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**************************************/
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declare ver address;
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declare i byte;
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declare no$chars byte; /* number characters input */
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declare second$string$ptr address; /* points to second filename input */
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declare ptr based second$string$ptr byte;
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declare last$dseg$byte byte
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initial (0);
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plm:
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ver = version;
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if (low(ver) < cpmversion) or (high(ver) = mpmproduct) then do;
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call print$buf(.('Requires CP/M 3.0','$'));
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call mon1(0,0);
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end;
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parse$fn.buff$adr = .tbuff(1);
|
|
new$fcb$adr, parse$fn.fcb$adr = .fcb;
|
|
if input$found(.tbuff(1)) then do;
|
|
if (parse$fn.fcb$adr:=parse(.parse$fn)) <> 0FFFFh then
|
|
call finish$parse;
|
|
end;
|
|
else do;
|
|
|
|
/* prompt for files */
|
|
call print$buf(.('Enter New Name: $'));
|
|
no$chars = read$console$buf(.tbuff(0),40);
|
|
if no$chars <= 0 then do;
|
|
call print$buf(.(cr,lf,'ERROR: Incorrect file specification.',cr,lf,'$'));
|
|
call mon1(0,0);
|
|
end; /* no$char check */
|
|
|
|
tbuff(1)= ' '; /* blank out nc field for file 1 */
|
|
second$string$ptr = .tbuff(no$chars + 2);
|
|
call crlf;
|
|
|
|
call print$buf(.('Enter Old Name: $'));
|
|
no$chars = read$console$buf(second$string$ptr,40);
|
|
call crlf;
|
|
ptr = ' '; /* blank out mx field */
|
|
second$string$ptr = second$string$ptr + 1;
|
|
ptr = '='; /* insert delimiter for parse */
|
|
second$string$ptr = second$string$ptr + no$chars + 1; /* eoln */
|
|
ptr = cr; /* put eoln delimeter in string */
|
|
parse$fn.buff$adr = .tbuff(1);
|
|
new$fcb$adr, parse$fn.fcb$adr = .fcb;
|
|
if (parse$fn.fcb$adr := parse(.parse$fn)) <> 0FFFFh then
|
|
call finish$parse;
|
|
end;
|
|
if parse$fn.fcb$adr = 0FFFFh then
|
|
call bad$entry;
|
|
if fcb(0) <> 0 then
|
|
if cur$fcb(0) <> 0 then do;
|
|
if fcb(0) <> cur$fcb(0) then
|
|
call bad$entry;
|
|
end;
|
|
else
|
|
cur$fcb(0) = new$fcb(0); /* set drive */
|
|
if wildcard then
|
|
call singlefile;
|
|
else if rename(.cur$fcb) <> successful then
|
|
call singlefile;
|
|
call mon1(0,0);
|
|
end ren;
|