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1 files changed, 102 insertions, 0 deletions

diff --git a/sys/imio/iki/oif/oifrename.x b/sys/imio/iki/oif/oifrename.x
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+++ b/sys/imio/iki/oif/oifrename.x
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+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<error.h>
+include	<imhdr.h>
+include	<imio.h>
+include	"oif.h"
+
+# OIF_RENAME -- Rename an image.  A special operator is required since the image
+# is stored as two files.
+
+procedure oif_rename (kernel, old_root, old_extn, new_root, new_extn, status)
+
+int	kernel			#I IKI kernel
+char	old_root[ARB]		# old image root name
+char	old_extn[ARB]		# old image extn
+char	new_root[ARB]		# new image root name
+char	new_extn[ARB]		# old image extn
+int	status
+
+pointer	sp, im
+bool	heq, peq
+pointer	old_hfn, new_hfn
+pointer	old_pfn, new_pfn
+int	nchars, old_rootoff, new_rootoff, junk
+
+bool	streq()
+pointer	immapz()
+int	access(), strlen(), strncmp()
+errchk	immapz, rename
+
+begin
+	call smark (sp)
+	call salloc (old_hfn, SZ_PATHNAME, TY_CHAR)
+	call salloc (new_hfn, SZ_PATHNAME, TY_CHAR)
+	call salloc (old_pfn, SZ_PATHNAME, TY_CHAR)
+	call salloc (new_pfn, SZ_PATHNAME, TY_CHAR)
+
+	# Get filenames of old and new images.
+	call iki_mkfname (old_root, old_extn, Memc[old_hfn], SZ_PATHNAME)
+	call iki_mkfname (new_root, OIF_HDREXTN, Memc[new_hfn], SZ_PATHNAME)
+	heq = streq (Memc[old_hfn], Memc[new_hfn])
+
+	# Our task here is nontrivial as the pixel file must be renamed as
+	# well as the header file, e.g., since renaming the header file may
+	# move it to a different directory, and the PIXFILE field in the
+	# image header may indicate that the pixel file is in the same dir
+	# as the header.  Must open image, get pixfile name from the header,
+	# and generate the new pixfile name.  The CURRENT value of IMDIR is
+	# used to generate the new pixfile name.
+
+	im = immapz (Memc[old_hfn], READ_WRITE, 0)
+
+	if (IM_PIXFILE(im) != EOS) {
+	    # Get old pixel file filename.
+	    call oif_gpixfname (IM_PIXFILE(im), Memc[old_hfn], Memc[old_pfn],
+		SZ_PATHNAME)
+
+	    # Get new pixel file filename.
+	    call strcpy (Memc[new_hfn], IM_HDRFILE(im), SZ_IMHDRFILE)
+	    call oif_mkpixfname (im, Memc[new_pfn], SZ_PATHNAME)
+
+	    # Do not change the pixel file name if the name does not change
+	    # other than by the addition of the "aa" style suffix added by
+	    # mkpixfname.
+
+	    peq = false
+	    call zfnbrk (old_root, old_rootoff, junk)
+	    call zfnbrk (new_root, new_rootoff, junk)
+	    peq = streq (old_root[old_rootoff], new_root[new_rootoff])
+
+	    if (peq) {
+		nchars = strlen (Memc[new_pfn]) - strlen ("aa.imh")
+		peq = (strncmp (Memc[old_pfn], Memc[new_pfn], nchars) == 0)
+	    }
+
+	    if (peq)
+		IM_UPDATE(im) = NO
+	    else {
+		# If the pixel file rename fails do not rename the header file
+		# and do not change the name of the pixel file in the header.
+
+		iferr (call rename (Memc[old_pfn], Memc[new_pfn])) {
+		    if (access (Memc[old_pfn], 0, 0) == YES) {
+			IM_UPDATE(im) = NO
+			call imunmap (im)
+			call erract (EA_ERROR)
+		    }
+		}
+	    }
+
+	} else
+	    call strcpy (Memc[new_hfn], IM_HDRFILE(im), SZ_IMHDRFILE)
+
+	call strcpy (Memc[old_hfn], IM_HDRFILE(im), SZ_IMHDRFILE)
+	call imunmap (im)
+
+	# Rename the header file.
+	if (!heq)
+	    call rename (Memc[old_hfn], Memc[new_hfn])
+
+	call sfree (sp)
+end