WSJT-X/rfile2.f

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subroutine rfile2(fname,buf,n,nr)
C Read data from disk.
integer RMODE
parameter(RMODE=0)
integer*1 buf(n)
integer open,read,close
integer fd
character fname*(*)
data iz/0/ !Silence g77 warning
do i=80,1,-1
if(fname(i:i).ne.' ') then
iz=i
go to 10
endif
enddo
10 fname=fname(1:iz)//char(0)
fd=open(fname,RMODE) !Open file for reading
nr=read(fd,buf,n)
i=close(fd)
return
end