| [613] | 1 | PRCHES8 ;WISC/RHD/AKS-ESIG MAINT ;3/18/93 15:38
|
|---|
| 2 | V ;;5.1;IFCAP;;Oct 20, 2000
|
|---|
| 3 | ;Per VHA Directive 10-93-142, this routine should not be modified.
|
|---|
| 4 | ;ROUTINE FOR MAINTAINING FIELD 105 (LOG CODE SHEET ELEC. SIG), FILE 442
|
|---|
| 5 | DECODE(LEVEL0) ;return esig to readable form
|
|---|
| 6 | NEW RECORD,RECORD1,RECORD18,VERSION,PERSON,SIG,CHECKSUM
|
|---|
| 7 | S RECORD=$G(^PRC(442,LEVEL0,0)) I RECORD="" Q ""
|
|---|
| 8 | S RECORD18=$G(^PRC(442,LEVEL0,18))
|
|---|
| 9 | S VERSION=$P(RECORD18,"^",15)
|
|---|
| 10 | S PERSON=+$P(RECORD18,"^",5)
|
|---|
| 11 | I VERSION'="",VERSION'=1 Q ""
|
|---|
| 12 | S SIG=$P(RECORD18,"^",6)
|
|---|
| 13 | D1 ;decode e signature for version 1
|
|---|
| 14 | S CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_$$STRING(RECORD18))
|
|---|
| 15 | Q $$DECODE^PRCUESIG(SIG,PERSON,CHECKSUM)
|
|---|
| 16 | ENCODE(LEVEL0,USERNUM,Y) ;Encode esig for ver 1 only
|
|---|
| 17 | NEW RECORD,RECORD18,SIGBLOCK,CHECKSUM,OLDUSER
|
|---|
| 18 | S USERNUM=+USERNUM
|
|---|
| 19 | I USERNUM=0 S Y=-3 Q ;-3 no user number
|
|---|
| 20 | S SIGBLOCK=$P($G(^VA(200,USERNUM,20)),"^",2)
|
|---|
| 21 | I SIGBLOCK="" S Y=-2 Q ;-2 no signature block
|
|---|
| 22 | S RECORD=$G(^PRC(442,LEVEL0,0))
|
|---|
| 23 | S RECORD18=$G(^PRC(442,LEVEL0,18))
|
|---|
| 24 | I RECORD="" S Y=-1 Q ;-1 no record
|
|---|
| 25 | I $P(RECORD18,"^",6)'="" S Y=-4 Q ;-4 cannot re-sign record
|
|---|
| 26 | S OLDUSER=+$P(RECORD18,"^",5)
|
|---|
| 27 | I OLDUSER=0 S $P(RECORD18,"^",5)=USERNUM
|
|---|
| 28 | I OLDUSER>0 S USERNUM=OLDUSER
|
|---|
| 29 | S:$P(RECORD18,"^",7)="" $P(RECORD18,"^",7)=$$NOW^PRCUESIG
|
|---|
| 30 | S CHECKSUM=$$SUM^PRCUESIG(LEVEL0_"^"_$$STRING(RECORD18))
|
|---|
| 31 | S $P(RECORD18,"^",6)=$$ENCODE^PRCUESIG(SIGBLOCK,USERNUM,CHECKSUM)
|
|---|
| 32 | S $P(RECORD18,"^",15,16)="1^"_$$SUM^PRCUESIG(SIGBLOCK)
|
|---|
| 33 | S ^PRC(442,LEVEL0,18)=RECORD18
|
|---|
| 34 | S Y=1 Q
|
|---|
| 35 | REMOVE(LEVEL0) ;Entry point to remove esig
|
|---|
| 36 | NEW I,RECORD18
|
|---|
| 37 | S RECORD18=$G(^PRC(442,LEVEL0,18)) Q:RECORD18=""
|
|---|
| 38 | F I=5,6,7,16 S $P(RECORD18,"^",I)=""
|
|---|
| 39 | S ^PRC(442,LEVEL0,18)=RECORD18
|
|---|
| 40 | Q
|
|---|
| 41 | VERIFY(LEVEL0) ;verify ver 1 sig Returns 1 if valid
|
|---|
| 42 | NEW RECORD18,VERSION,SIGBLOCK
|
|---|
| 43 | S RECORD18=$G(^PRC(442,LEVEL0,18))
|
|---|
| 44 | S VERSION=$P(RECORD18,"^",15),SIGBLOCK=$P(RECORD18,"^",16)
|
|---|
| 45 | I VERSION_SIGBLOCK="" Q 1
|
|---|
| 46 | Q ($$SUM^PRCUESIG($$DECODE(LEVEL0))=SIGBLOCK)
|
|---|
| 47 | STRING(X18) ;Build String of critical fields
|
|---|
| 48 | Q $P(X18,"^",7)
|
|---|
