Initial commit

1 files changed, 65 insertions, 0 deletions

diff --git a/sys/imio/iki/stf/stfreblk.x b/sys/imio/iki/stf/stfreblk.x
new file mode 100644
index 00000000..9519bd08
--- /dev/null
+++ b/sys/imio/iki/stf/stfreblk.x
@@ -0,0 +1,65 @@
+# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
+
+include	<imhdr.h>
+include	<imio.h>
+include	"stf.h"
+
+# STF_REBLOCK -- If the user area is not blocked to fixed length records, e.g.,
+# as is possible in a new copy image, reblock it fixed length.
+
+procedure stf_reblock (im)
+
+pointer	im			# image descriptor
+
+pointer	sp, lbuf, op, ua
+int	fd, spool, nlines, nchars, sz_userarea, len_hdrmem
+errchk	stropen, open, getline, putline, realloc, seek, fcopyo
+int	open(), stropen(), getline()
+
+begin
+	call smark (sp)
+	call salloc (lbuf, SZ_LINE, TY_CHAR)
+
+	ua = IM_USERAREA(im)
+	fd = stropen (Memc[ua], ARB, READ_ONLY)
+	spool = open ("rb_spool", READ_WRITE, SPOOL_FILE)
+	
+	# Reblock into a spool file, counting the lines.
+	for (nlines=0;  ;  nlines=nlines+1) {
+	    nchars = getline (fd, Memc[lbuf])
+	    if (nchars <= 0)
+		break
+
+	    for (op=nchars;  op <= FITS_RECLEN;  op=op+1)
+		Memc[lbuf+op-1] = ' '
+	    Memc[lbuf+FITS_RECLEN] = '\n'
+	    Memc[lbuf+FITS_RECLEN+1] = EOS
+
+	    call putline (spool, Memc[lbuf])
+	}
+
+	call close (fd)
+
+	# Reallocate header the right size.
+	sz_userarea = nlines * (FITS_RECLEN+1) + SZ_EXTRASPACE
+
+	IM_HDRLEN(im) = LEN_IMHDR +
+	    (sz_userarea - SZ_EXTRASPACE + SZ_MII_INT-1) / SZ_MII_INT
+	len_hdrmem = LEN_IMHDR +
+	    (sz_userarea+1 + SZ_MII_INT-1) / SZ_MII_INT
+
+	if (IM_LENHDRMEM(im) < len_hdrmem) {
+	    IM_LENHDRMEM(im) = len_hdrmem
+	    call realloc (im, IM_LENHDRMEM(im) + LEN_IMDES, TY_STRUCT)
+	}
+
+	# Move spooled data back to user area.
+	ua = IM_USERAREA(im)
+	fd = stropen (Memc[ua], sz_userarea, NEW_FILE)
+	call seek (spool, BOFL)
+	call fcopyo (spool, fd)
+
+	call close (fd)
+	call close (spool)
+	call sfree (sp)
+end