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c Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
c Copyright (C) INRIA
c Copyright (C) DIGITEO - 2010 - Allan CORNET
c
c This file must be used under the terms of the CeCILL.
c This source file is licensed as described in the file COPYING, which
c you should have received as part of this distribution. The terms
c are also available at
c http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt
subroutine v2cunit(k,mode,fd,opened,ierr)
c given variable #k (scalar or string) and mode
c v2unit return a logical unit attached to corresponding file
INCLUDE 'stack.h'
c
logical opened
integer fd
character*2 mode
double precision w
integer iadr,sadr
c
iadr(l) = l+l-1
sadr(l) = (l/2)+1
c
ierr = 0
il = iadr(lstk(k))
if(istk(il).lt.0) il=iadr(istk(il+1))
if (istk(il).eq.1) then
fd = int(stk(sadr(il+4)))
if (istk(il+1)*istk(il+2).ne.1.or.istk(il+3).ne.0.or.
$ fd .lt. 0) then
err = 1
ierr = 1
call error(36)
return
endif
call getfileinfo(fd,ifa,iswap,ltype,mod,buf,lb,info)
if(info.eq.1) then
err = 1
ierr = 1
call error(36)
elseif(info.eq.2) then
err = fd
ierr = 2
call error(245)
return
elseif(info.eq.0.and.ltype.eq.1) then
c ierr=-1 line used for compatibility instead of error
ierr = -1
opened = .true.
c call error(244)
return
endif
opened = .true.
elseif(istk(il).eq.10) then
if(istk(il+1)*istk(il+2).ne.1) then
err = 1
ierr = 1
call error(36)
return
endif
mn=istk(il+5)-1
buf=' '
call cvstr(mn,istk(il+5+istk(il+1)*istk(il+2)),buf,1)
call cluni0(buf(1:mn), buf(mn+2:),mn1)
lunit = 0
buf(mn+mn1+2:mn+mn1+2) = char(0)
l = lnblnk(mode)
call mopen(fd,buf(mn+2:),mode(1:l)//char(0),1,w,ierr)
if(ierr.gt.0) then
if (ierr.eq.4) then
c INVALID_FILENAME
err = 241
elseif(ierr.eq.2) then
if(mode(1:1).eq.'r') then
err = 241
else
err = 240
endif
elseif(ierr.eq.1) then
err = 66
endif
call v2cuniterror(err, buf(mn+2:))
buf(mn+1:)=' '
return
endif
opened = .false.
else
err = 1
ierr = 1
call error(36)
return
endif
end
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