w4kek/WSJT-X
1
0
Fork 0
mirror of https://github.com/saitohirga/WSJT-X.git synced 2024-12-24 11:40:31 -05:00
Code Issues Packages Projects Releases Wiki Activity

Fix an off by one error in 10 and 12 bit hash code handling

Browse Source 
Revealed by trying to hash M0RNR which has zero as a 10 and 12 bit
hash code.
This commit is contained in:
Bill Somerville 2020-06-30 21:50:17 +01:00
parent 3d081a09a8
commit f6a7d8c4bd
No known key found for this signature in database
GPG Key ID: D864B06D1E81618F
1 changed files with 6 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
lib/77bit/packjt77.f90
View File

@ -2,8 +2,8 @@ module packjt77
! These variables are accessible from outside via "use packjt77":
parameter (MAXHASH=1000,MAXRECENT=10)
character (len=13), dimension(1:1024) :: calls10=''
character (len=13), dimension(1:4096) :: calls12=''
character (len=13), dimension(0:1023) :: calls10=''
character (len=13), dimension(0:4095) :: calls12=''
character (len=13), dimension(1:MAXHASH) :: calls22=''
character (len=13), dimension(1:MAXRECENT) :: recent_calls=''
character (len=13) :: mycall13=''
@ -19,7 +19,7 @@ subroutine hash10(n10,c13)
character*13 c13
c13='<...>'
if(n10.lt.1 .or. n10.gt.1024) return
if(n10.lt.0 .or. n10.gt.1023) return
if(len(trim(calls10(n10))).gt.0) then
c13=calls10(n10)
c13='<'//trim(c13)//'>'
@ -33,7 +33,7 @@ subroutine hash12(n12,c13)
character*13 c13
c13='<...>'
if(n12.lt.1 .or. n12.gt.4096) return
if(n12.lt.0 .or. n12.gt.4095) return
if(len(trim(calls12(n12))).gt.0) then
c13=calls12(n12)
c13='<'//trim(c13)//'>'
@ -90,10 +90,10 @@ subroutine save_hash_call(c13,n10,n12,n22)
if(len(trim(cw)) .lt. 3) return
n10=ihashcall(cw,10)
if(n10.ge.1 .and. n10 .le. 1024 .and. cw.ne.mycall13) calls10(n10)=cw
if(n10.ge.0 .and. n10 .le. 1023 .and. cw.ne.mycall13) calls10(n10)=cw
n12=ihashcall(cw,12)
if(n12.ge.1 .and. n12 .le. 4096 .and. cw.ne.mycall13) calls12(n12)=cw
if(n12.ge.0 .and. n12 .le. 4095 .and. cw.ne.mycall13) calls12(n12)=cw
n22=ihashcall(cw,22)
if(any(ihash22.eq.n22)) then ! If entry exists, make sure callsign is the most recently received one