rm funtools for update

1 files changed, 0 insertions, 2308 deletions

diff --git a/funtools/wcs/fitsfile.c b/funtools/wcs/fitsfile.c
deleted file mode 100644
index 0ff9479..0000000
--- a/funtools/wcs/fitsfile.c
+++ /dev/null
@@ -1,2308 +0,0 @@
-/*** File libwcs/fitsfile.c
- *** September 15, 2011
- *** By Jessica Mink, jmink@cfa.harvard.edu
- *** Harvard-Smithsonian Center for Astrophysics
- *** Copyright (C) 1996-2011
- *** Smithsonian Astrophysical Observatory, Cambridge, MA, USA
-
-    This library is free software; you can redistribute it and/or
-    modify it under the terms of the GNU Lesser General Public
-    License as published by the Free Software Foundation; either
-    version 2 of the License, or (at your option) any later version.
-
-    This library is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-    Lesser General Public License for more details.
-    
-    You should have received a copy of the GNU Lesser General Public
-    License along with this library; if not, write to the Free Software
-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-
-    Correspondence concerning WCSTools should be addressed as follows:
-           Internet email: jmink@cfa.harvard.edu
-           Postal address: Jessica Mink
-                           Smithsonian Astrophysical Observatory
-                           60 Garden St.
-                           Cambridge, MA 02138 USA
-
- * Module:      fitsfile.c (FITS file reading and writing)
- * Purpose:     Read and write FITS image and table files
- * fitsropen (inpath)
- *		Open a FITS file for reading, returning a FILE pointer
- * fitsrhead (filename, lhead, nbhead)
- *		Read FITS header and return it
- * fitsrtail (filename, lhead, nbhead)
- *		Read appended FITS header and return it
- * fitsrsect (filename, nbhead, header, fd, x0, y0, nx, ny)
- *		Read section of a FITS image, having already read the header
- * fitsrimage (filename, nbhead, header)
- *		Read FITS image, having already ready the header
- * fitsrfull (filename, nbhead, header)
- *		Read a FITS image of any dimension
- * fitsrtopen (inpath, nk, kw, nrows, nchar, nbhead)
- *		Open a FITS table file for reading; return header information
- * fitsrthead (header, nk, kw, nrows, nchar, nbhead)
- *		Extract FITS table information from a FITS header
- * fitsrtline (fd, nbhead, lbuff, tbuff, irow, nbline, line)
- *		Read next line of FITS table file
- * ftgetr8 (entry, kw)
- *		Extract column from FITS table line as double
- * ftgetr4 (entry, kw)
- *		Extract column from FITS table line as float
- * ftgeti4 (entry, kw)
- *		Extract column from FITS table line as int
- * ftgeti2 (entry, kw)
- *		Extract column from FITS table line as short
- * ftgetc (entry, kw, string, maxchar)
- *		Extract column from FITS table line as a character string
- * fitswimage (filename, header, image)
- *		Write FITS header and image
- * fitswext (filename, header, image)
- *		Write FITS header and image as extension to existing FITS file
- * fitswhdu (fd, filename, header, image)
- *		Write FITS header and image as extension to file descriptor
- * fitscimage (filename, header, filename0)
- *		Write FITS header and copy FITS image
- * fitswhead (filename, header)
- *		Write FITS header and keep file open for further writing 
- * fitswexhead (filename, header)
- *		Write FITS header only to FITS extension without writing data
- * isfits (filename)
- *		Return 1 if file is a FITS file, else 0
- * fitsheadsize (header)
- *  		Return size of FITS header in bytes
- */
-
-#include <stdlib.h>
-#ifndef VMS
-#include <unistd.h>
-#endif
-#include <stdio.h>
-#include <fcntl.h>
-#include <sys/file.h>
-#include <errno.h>
-#include <string.h>
-#include "fitsfile.h"
-
-static int verbose=0;		/* Print diagnostics */
-static char fitserrmsg[80];
-static int fitsinherit = 1;	/* Append primary header to extension header */
-void
-setfitsinherit (inh)
-int inh;
-{fitsinherit = inh; return;}
-
-static off_t ibhead = 0;	/* Number of bytes read before header starts */
-
-off_t
-getfitsskip()
-{return (ibhead);}
-
-/* FITSRHEAD -- Read a FITS header */
-
-char *
-fitsrhead (filename, lhead, nbhead)
-
-char	*filename;	/* Name of FITS image file */
-int	*lhead;		/* Allocated length of FITS header in bytes (returned) */
-int	*nbhead;	/* Number of bytes before start of data (returned) */
-			/* This includes all skipped image extensions */
-
-{
-    int fd;
-    char *header;	/* FITS image header (filled) */
-    int extend;
-    int nbytes,naxis, i;
-    int ntry,nbr,irec,nrec, nbh, ipos, npos, nbprim, lprim, lext;
-    int nax1, nax2, nax3, nax4, nbpix, ibpix, nblock, nbskip;
-    char fitsbuf[2884];
-    char *headend;	/* Pointer to last line of header */
-    char *headnext;	/* Pointer to next line of header to be added */
-    int hdu;		/* header/data unit counter */
-    int extnum;		/* desired header data number
-			   (0=primary -1=first with data -2=use EXTNAME) */
-    char extname[32];	/* FITS extension name */
-    char extnam[32];	/* Desired FITS extension name */
-    char *ext;		/* FITS extension name or number in header, if any */
-    char *pheader;	/* Primary header (naxis is 0) */
-    char cext = 0;
-    char *rbrac;	/* Pointer to right bracket if present in file name */
-    char *mwcs;		/* Pointer to WCS name separated by % */
-    char *newhead;	/* New larger header */
-    int nbh0;		/* Length of old too small header */
-    char *pheadend;
-    int inherit = 1;	/* Value of INHERIT keyword in FITS extension header */
-    int extfound = 0;	/* Set to one if desired FITS extension is found */
-    int npcount;
-
-    pheader = NULL;
-    lprim = 0;
-    header = NULL;
-
-    /* Check for FITS WCS specification and ignore for file opening */
-    mwcs = strchr (filename, '%');
-    if (mwcs != NULL)
-	*mwcs = (char) 0;
-
-    /* Check for FITS extension and ignore for file opening */
-    rbrac = NULL;
-    ext = strchr (filename, ',');
-    if (ext == NULL) {
-	ext = strchr (filename, '[');
-	if (ext != NULL) {
-	    rbrac = strchr (filename, ']');
-	    if (rbrac != NULL)
-		*rbrac = (char) 0;
-	    }
-	}
-    if (ext != NULL) {
-	cext = *ext;
-	*ext = (char) 0;
-	}
-
-    /* Open the image file and read the header */
-    if (strncasecmp (filename,"stdin",5)) {
-	fd = -1;
-	fd = fitsropen (filename);
-	}
-#ifndef VMS
-    else {
-	fd = STDIN_FILENO;
-	extnum = -1;
-	}
-#endif
-
-    if (ext != NULL) {
-	if (isnum (ext+1))
-	    extnum = atoi (ext+1);
-	else {
-	    extnum = -2;
-	    strcpy (extnam, ext+1);
-	    }
-	}
-    else
-	extnum = -1;
-
-    /* Repair the damage done to the file-name string during parsing */
-    if (ext != NULL)
-	*ext = cext;
-    if (rbrac != NULL)
-	*rbrac = ']';
-    if (mwcs != NULL)
-	*mwcs = '%';
-
-    if (fd < 0) {
-	fprintf (stderr,"FITSRHEAD:  cannot read file %s\n", filename);
-	return (NULL);
-	}
-
-    nbytes = FITSBLOCK;
-    *nbhead = 0;
-    headend = NULL;
-    nbh = FITSBLOCK * 20 + 4;
-    header = (char *) calloc ((unsigned int) nbh, 1);
-    (void) hlength (header, nbh);
-    headnext = header;
-    nrec = 1;
-    hdu = 0;
-    ibhead = 0;
-
-    /* Read FITS header from input file one FITS block at a time */
-    irec = 0;
-    ibhead = 0;
-    while (irec < 200) {
-	nbytes = FITSBLOCK;
-	for (ntry = 0; ntry < 10; ntry++) {
-	    for (i = 0; i < 2884; i++) fitsbuf[i] = 0;
-	    nbr = read (fd, fitsbuf, nbytes);
-
-	    /* Short records allowed only if they have the last header line */
-	    if (nbr < nbytes) {
-		headend = ksearch (fitsbuf,"END");
-		if (headend == NULL) {
-		    if (ntry < 9) {
-			if (verbose)
-			    fprintf (stderr,"FITSRHEAD: %d / %d bytes read %d\n",
-				     nbr,nbytes,ntry);
-			}
-		    else {
-			snprintf(fitserrmsg,79,"FITSRHEAD: '%d / %d bytes of header read from %s\n"
-				,nbr,nbytes,filename);
-#ifndef VMS
-			if (fd != STDIN_FILENO)
-#endif
-			    (void)close (fd);
-			free (header);
-			/* if (pheader != NULL)
-			    return (pheader); */
-    			if (extnum != -1 && !extfound) {
-			    *ext = (char) 0;
-			    if (extnum < 0) {
-	    			snprintf (fitserrmsg,79,
-				    "FITSRHEAD: Extension %s not found in file %s",
-				    extnam, filename);
-				}
-			    else {
-	    			snprintf (fitserrmsg,79,
-				    "FITSRHEAD: Extension %d not found in file %s",
-				    extnum, filename);
-				}
-			    *ext = cext;
-			    }
-			else if (hdu > 0) {
-	    		    snprintf (fitserrmsg,79,
-				"FITSRHEAD: No extensions found in file %s", filename);
-			    hdu = 0;
-			    if (pheader != NULL) {
-				*lhead = nbprim;
-				*nbhead = nbprim;
-				return (pheader);
-				}
-			    break;
-			    }
-			else {
-	    		    snprintf (fitserrmsg,79,
-				"FITSRHEAD: No header found in file %s", filename);
-			    }
-			return (NULL);
-			}
-		    }
-		else
-		    break;
-		}
-	    else
-		break;
-	    }
-
-	/* Move current FITS record into header string */
-	for (i = 0; i < 2880; i++)
-	    if (fitsbuf[i] < 32 || i > nbr) fitsbuf[i] = 32;
-	if (nbr < 2880)
-	    nbr = 2880;
-	strncpy (headnext, fitsbuf, nbr);
-	*nbhead = *nbhead + nbr;
-	nrec = nrec + 1;
-	*(headnext+nbr) = 0;
-	ibhead = ibhead + 2880;
-
-	/* Check to see if this is the final record in this header */
-	headend = ksearch (fitsbuf,"END");
-	if (headend == NULL) {
-
-	    /* Increase size of header buffer by 4 blocks if too small */
-	    if (nrec * FITSBLOCK > nbh) {
-		nbh0 = nbh;
-		nbh = (nrec + 4) * FITSBLOCK + 4;
-		newhead = (char *) calloc (1,(unsigned int) nbh);
-		for (i = 0; i < nbh0; i++)
-		    newhead[i] = header[i];
-		free (header);
-		header = newhead;
-		(void) hlength (header, nbh);
-		headnext = header + *nbhead - FITSBLOCK;
-		}
-	    headnext = headnext + FITSBLOCK;
-	    }
-
-	else {
-	    naxis = 0;
-	    hgeti4 (header,"NAXIS",&naxis);
-
-	    /* If header has no data, save it for appending to desired header */
-	    if (naxis < 1) {
-		nbprim = nrec * FITSBLOCK;
-		headend = ksearch (header,"END");
-		lprim = headend + 80 - header;
-		pheader = (char *) calloc ((unsigned int) nbprim, 1);
-		for (i = 0; i < lprim; i++)
-		    pheader[i] = header[i];
-		strncpy (pheader, header, lprim);
-		}
-
-	    /* If header has no data, start with the next record */
-	    if (naxis < 1 && extnum == -1) {
-		extend = 0;
-		hgetl (header,"EXTEND",&extend);
-		if (naxis == 0 && extend) {
-		    headnext = header;
-		    *headend = ' ';
-		    headend = NULL;
-		    nrec = 1;
-		    hdu = hdu + 1;
-		    }
-		else {
-		    break;
-		    }
-		}
-
-	    /* If this is the desired header data unit, keep it */
-	    else if (extnum != -1) {
-		if (extnum > -1 && hdu == extnum) {
-		    extfound = 1;
-		    break;
-		    }
-		else if (extnum < 0) {
-		    extname[0] = 0;
-		    hgets (header, "EXTNAME", 32, extname);
-		    if (!strcmp (extnam,extname)) {
-			extfound = 1;
-			break;
-			}
-		    }
-
-		/* If this is not desired header data unit, skip over data */
-		hdu = hdu + 1;
-		nblock = 0;
-		ibhead = 0;
-		if (naxis > 0) {
-		    ibpix = 0;
-		    hgeti4 (header,"BITPIX",&ibpix);
-		    if (ibpix < 0) {
-			nbpix = -ibpix / 8;
-			}
-		    else {
-			nbpix = ibpix / 8;
-			}
-		    nax1 = 1;
-		    hgeti4 (header,"NAXIS1",&nax1);
-		    nax2 = 1;
-		    if (naxis > 1) {
-			hgeti4 (header,"NAXIS2",&nax2);
-			}
-		    nax3 = 1;
-		    if (naxis > 2) {
-			hgeti4 (header,"NAXIS3",&nax3);
-			}
-		    nax4 = 1;
-		    if (naxis > 3) {
-			hgeti4 (header,"NAXIS4",&nax4);
-			}
-		    nbskip = nax1 * nax2 * nax3 * nax4 * nbpix;
-		    nblock = nbskip / 2880;
-		    if (nblock*2880 < nbskip) {
-			nblock = nblock + 1;
-			}
-		    npcount = 0;
-		    hgeti4 (header,"PCOUNT", &npcount);
-		    if (npcount > 0) {
-			nbskip = nbskip + npcount;
-			nblock = nbskip / 2880;
-			if (nblock*2880 < nbskip)
-			    nblock = nblock + 1;
-			}
-		    }
-		else {
-		    nblock = 0;
-		    }
-		*nbhead = *nbhead + (nblock * 2880);
-
-		/* Set file pointer to beginning of next header/data unit */
-		if (nblock > 0) {
-#ifndef VMS
-		    if (fd != STDIN_FILENO) {
-			ipos = lseek (fd, *nbhead, SEEK_SET);
-			npos = *nbhead;
-			}
-		    else {
-#else
-			{
-#endif
-			ipos = 0;
-			for (i = 0; i < nblock; i++) {
-			    nbytes = FITSBLOCK;
-			    nbr = read (fd, fitsbuf, nbytes);
-			    if (nbr < nbytes) {
-				ipos = ipos + nbr;
-				break;
-				}
-			    else {
-				ipos = ipos + nbytes;
-				}
-			    }
-			npos = nblock * 2880;
-			}
-		    if (ipos < npos) {
-			snprintf (fitserrmsg,79,"FITSRHEAD: %d / %d bytes skipped\n",
-				 ipos,npos);
-			extfound = 0;
-			break;
-			}
-		    }
-		headnext = header;
-		headend = NULL;
-		nrec = 1;
-		}
-	    else {
-		break;
-		}
-	    }
-	}
-
-#ifndef VMS
-    if (fd != STDIN_FILENO)
-	(void)close (fd);
-#endif
-
-/* Print error message and return null if extension not found */
-    if (extnum != -1 && !extfound) {
-	if (extnum < 0)
-	    fprintf (stderr, "FITSRHEAD: Extension %s not found in file %s\n",extnam, filename);
-	else
-	    fprintf (stderr, "FITSRHEAD: Extension %d not found in file %s\n",extnum, filename);
-	if (pheader != NULL) {
-	    free (pheader);
-	    pheader = NULL;
-	    }
-	return (NULL);
-	}
-
-    /* Allocate an extra block for good measure */
-    *lhead = (nrec + 1) * FITSBLOCK;
-    if (*lhead > nbh) {
-	newhead = (char *) calloc (1,(unsigned int) *lhead);
-	for (i = 0; i < nbh; i++)
-	    newhead[i] = header[i];
-	free (header);
-	header = newhead;
-	(void) hlength (header, *lhead);
-	}
-    else
-	*lhead = nbh;
-
-    /* If INHERIT keyword is FALSE, never append primary header */
-    if (hgetl (header, "INHERIT", &inherit)) {
-	if (!inherit && fitsinherit)
-	    fitsinherit = 0;
-	}
-
-    /* Append primary data header to extension header */
-    if (pheader != NULL && extnum != 0 && fitsinherit && hdu > 0) {
-	extname[0] = 0;
-	hgets (header, "XTENSION", 32, extname);
-	if (!strcmp (extname,"IMAGE")) {
-	    strncpy (header, "SIMPLE  ", 8);
-	    hputl (header, "SIMPLE", 1);
-	    }
-	headend = blsearch (header,"END");
-	if (headend == NULL)
-	    headend = ksearch (header, "END");
-	lext = headend - header;
-
-	/* Update primary header for inclusion at end of extension header */
-	hchange (pheader, "SIMPLE", "ROOTHEAD");
-	hchange (pheader, "NEXTEND", "NUMEXT");
-	hdel (pheader, "BITPIX");
-	hdel (pheader, "NAXIS");
-	hdel (pheader, "EXTEND");
-	hputl (pheader, "ROOTEND",1);
-	pheadend = ksearch (pheader,"END");
-	lprim = pheadend + 320 - pheader;
-	if (lext + lprim > nbh) {
-	    nrec = (lext + lprim) / FITSBLOCK;
-	    if (FITSBLOCK*nrec < lext+lprim)
-		nrec = nrec + 1;
-	    *lhead = (nrec+1) * FITSBLOCK;
-	    newhead = (char *) calloc (1,(unsigned int) *lhead);
-	    for (i = 0; i < nbh; i++)
-		newhead[i] = header[i];
-	    free (header);
-	    header = newhead;
-	    headend = header + lext;
-	    (void) hlength (header, *lhead);
-	    }
-	hputs (header,"COMMENT","-------------------------------------------");
-	hputs (header,"COMMENT","Information from Primary Header");
-	hputs (header,"COMMENT","-------------------------------------------");
-	headend = blsearch (header,"END");
-	if (headend == NULL)
-	    headend = ksearch (header, "END");
-	pheader[lprim] = 0;
-	strncpy (headend, pheader, lprim);
-	if (pheader != NULL) {
-	    free (pheader);
-	    pheader = NULL;
-	    }
-	}
-
-    ibhead = *nbhead - ibhead;
-
-    return (header);
-}
-
-
-/* FITSRTAIL -- Read FITS header appended to graphics file */
-
-char *
-fitsrtail (filename, lhead, nbhead)
-
-char	*filename;	/* Name of image file */
-int	*lhead;		/* Allocated length of FITS header in bytes (returned) */
-int	*nbhead;	/* Number of bytes before start of data (returned) */
-			/* This includes all skipped image extensions */
-
-{
-    int fd;
-    char *header;	/* FITS image header (filled) */
-    int nbytes, i, ndiff;
-    int nbr, irec;
-    off_t offset;
-    char *mwcs;		/* Pointer to WCS name separated by % */
-    char *headstart;
-    char *newhead;
-
-    header = NULL;
-
-    /* Check for FITS WCS specification and ignore for file opening */
-    mwcs = strchr (filename, '%');
-    if (mwcs != NULL)
-	*mwcs = (char) 0;
-
-    /* Open the image file and read the header */
-    if (strncasecmp (filename,"stdin",5)) {
-	fd = -1;
-	fd = fitsropen (filename);
-	}
-#ifndef VMS
-    else {
-	fd = STDIN_FILENO;
-	}
-#endif
-
-    /* Repair the damage done to the file-name string during parsing */
-    if (mwcs != NULL)
-	*mwcs = '%';
-
-    if (fd < 0) {
-	fprintf (stderr,"FITSRTAIL:  cannot read file %s\n", filename);
-	return (NULL);
-	}
-
-    nbytes = FITSBLOCK;
-    *nbhead = 0;
-    *lhead = 0;
-
-    /* Read FITS header from end of input file one FITS block at a time */
-    irec = 0;
-    while (irec < 100) {
-	nbytes = FITSBLOCK * (irec + 2);
-	header = (char *) calloc ((unsigned int) nbytes, 1);
-	offset = lseek (fd, -nbytes, SEEK_END);
-	if (offset < 0) {
-	    free (header);
-	    header = NULL;
-	    nbytes = 0;
-	    break;
-	    }
-	for (i = 0; i < nbytes; i++) header[i] = 0;
-	nbr = read (fd, header, nbytes);
-
-	/* Check for SIMPLE at start of header */
-	for (i = 0; i < nbr; i++)
-	    if (header[i] < 32) header[i] = 32;
-	if ((headstart = ksearch (header,"SIMPLE"))) {
-	    if (headstart != header) {
-		ndiff = headstart - header;
-		newhead = (char *) calloc ((unsigned int) nbytes, 1);
-		for (i = 0; i < nbytes-ndiff; i++)
-		    newhead[i] = headstart[i];
-		free (header);
-		header = newhead;
-		}
-	    *lhead = nbytes;
-	    *nbhead = nbytes;
-	    break;
-	    }
-	free (header);
-	}
-    (void) hlength (header, nbytes);
-
-#ifndef VMS
-    if (fd != STDIN_FILENO)
-	(void)close (fd);
-#endif
-
-    return (header);
-}
-
-
-/* FITSRSECT -- Read a piece of a FITS image, having already read the header */
-
-char *
-fitsrsect (filename, header, nbhead, x0, y0, nx, ny, nlog)
-
-char	*filename;	/* Name of FITS image file */
-char	*header;	/* FITS header for image (previously read) */
-int	nbhead;		/* Actual length of image header(s) in bytes */
-int	x0, y0;		/* FITS image coordinate of first pixel */
-int	nx;		/* Number of columns to read (less than NAXIS1) */
-int	ny;		/* Number of rows to read (less than NAXIS2) */
-int	nlog;		/* Note progress mod this rows */
-{
-    int fd;		/* File descriptor */
-    int nbimage, naxis1, naxis2, bytepix, nbread;
-    int bitpix, naxis, nblocks, nbytes, nbr;
-    int x1, y1, nbline, nyleft;
-    off_t impos, nblin;
-    char *image, *imline, *imlast;
-    int ilog = 0;
-    int row;
-
-    /* Open the image file and read the header */
-    if (strncasecmp (filename,"stdin", 5)) {
-	fd = -1;
-
-	fd = fitsropen (filename);
-	if (fd < 0) {
-	    snprintf (fitserrmsg,79, "FITSRSECT:  cannot read file %s\n", filename);
-	    return (NULL);
-	    }
-
-	/* Skip over FITS header and whatever else needs to be skipped */
-	if (lseek (fd, nbhead, SEEK_SET) < 0) {
-	    (void)close (fd);
-	    snprintf (fitserrmsg,79, "FITSRSECT:  cannot skip header of file %s\n",
-		     filename);
-	    return (NULL);
-	    }
-	}
-#ifndef VMS
-    else
-	fd = STDIN_FILENO;
-#endif
-
-    /* Compute size of image in bytes using relevant header parameters */
-    naxis = 1;
-    hgeti4 (header,"NAXIS",&naxis);
-    naxis1 = 1;
-    hgeti4 (header,"NAXIS1",&naxis1);
-    naxis2 = 1;
-    hgeti4 (header,"NAXIS2",&naxis2);
-    bitpix = 0;
-    hgeti4 (header,"BITPIX",&bitpix);
-    if (bitpix == 0) {
-	/* snprintf (fitserrmsg,79, "FITSRSECT:  BITPIX is 0; image not read\n"); */
-	(void)close (fd);
-	return (NULL);
-	}
-    bytepix = bitpix / 8;
-    if (bytepix < 0) bytepix = -bytepix;
-
-    /* Keep X coordinates within image limits */
-    if (x0 < 1)
-	x0 = 1;
-    else if (x0 > naxis1)
-	x0 = naxis1;
-    x1 = x0 + nx - 1;
-    if (x1 < 1)
-	x1 = 1;
-    else if (x1 > naxis1)
-	x1 = naxis1;
-    nx = x1 - x0 + 1;
-
-    /* Keep Y coordinates within image limits */
-    if (y0 < 1)
-	y0 = 1;
-    else if (y0 > naxis2)
-	y0 = naxis2;
-    y1 = y0 + ny - 1;
-    if (y1 < 1)
-	y1 = 1;
-    else if (y1 > naxis2)
-	y1 = naxis2;
-    ny = y1 - y0 + 1;
-
-    /* Number of bytes in output image */
-    nbline = nx * bytepix;
-    nbimage = nbline * ny;
-
-    /* Set number of bytes to integral number of 2880-byte blocks */
-    nblocks = nbimage / FITSBLOCK;
-    if (nblocks * FITSBLOCK < nbimage)
-	nblocks = nblocks + 1;
-    nbytes = nblocks * FITSBLOCK;
-
-    /* Allocate image section to be read */
-    image = (char *) malloc (nbytes);
-    nyleft = ny;
-    imline = image;
-    nbr = 0;
-
-    /* Computer pointer to first byte of input image to read */
-    nblin = naxis1 * bytepix;
-    impos = ((y0 - 1) * nblin) + ((x0 - 1) * bytepix);
-    row = y0 - 1;
-
-    /* Read image section one line at a time */
-    while (nyleft-- > 0) {
-	if (lseek (fd, impos, SEEK_CUR) >= 0) {
-	    nbread = read (fd, imline, nbline);
-	    nbr = nbr + nbread;
-	    impos = nblin - nbread;
-	    imline = imline + nbline;
-	    row++;
-	    if (++ilog == nlog) {
-		ilog = 0;
-		fprintf (stderr, "Row %5d extracted   ", row);
-                (void) putc (13,stderr);
-		}
-	    }
-	}
-    if (nlog)
-	fprintf (stderr, "\n");
-
-    /* Fill rest of image with zeroes */
-    imline = image + nbimage;
-    imlast = image + nbytes;
-    while (imline++ < imlast)
-	*imline = (char) 0;
-
-    /* Byte-reverse image, if necessary */
-    if (imswapped ())
-	imswap (bitpix, image, nbytes);
-
-    return (image);
-}
-
-
-/* FITSRIMAGE -- Read a FITS image */
-
-char *
-fitsrimage (filename, nbhead, header)
-
-char	*filename;	/* Name of FITS image file */
-int	nbhead;		/* Actual length of image header(s) in bytes */
-char	*header;	/* FITS header for image (previously read) */
-{
-    int fd;
-    int nbimage, naxis1, naxis2, bytepix, nbread;
-    int bitpix, naxis, nblocks, nbytes, nbleft, nbr;
-    int simple;
-    char *image, *imleft;
-
-    /* Open the image file and read the header */
-    if (strncasecmp (filename,"stdin", 5)) {
-	fd = -1;
-
-	fd = fitsropen (filename);
-	if (fd < 0) {
-	    snprintf (fitserrmsg,79, "FITSRIMAGE:  cannot read file %s\n", filename);
-	    return (NULL);
-	    }
-
-	/* Skip over FITS header and whatever else needs to be skipped */
-	if (lseek (fd, nbhead, SEEK_SET) < 0) {
-	    (void)close (fd);
-	    snprintf (fitserrmsg,79, "FITSRIMAGE:  cannot skip header of file %s\n",
-		     filename);
-	    return (NULL);
-	    }
-	}
-#ifndef VMS
-    else
-	fd = STDIN_FILENO;
-#endif
-
-    /* If SIMPLE=F in header, simply put post-header part of file in buffer */
-    hgetl (header, "SIMPLE", &simple);
-    if (!simple) {
-	nbytes = getfilesize (filename) - nbhead;
-	if ((image = (char *) malloc (nbytes + 1)) == NULL) {
-	    /* snprintf (fitserrmsg,79, "FITSRIMAGE:  %d-byte image buffer cannot be allocated\n"); */
-	    (void)close (fd);
-	    return (NULL);
-	    }
-	hputi4 (header, "NBDATA", nbytes);
-	nbread = read (fd, image, nbytes);
-	return (image);
-	}
-
-    /* Compute size of image in bytes using relevant header parameters */
-    naxis = 1;
-    hgeti4 (header,"NAXIS",&naxis);
-    naxis1 = 1;
-    hgeti4 (header,"NAXIS1",&naxis1);
-    naxis2 = 1;
-    hgeti4 (header,"NAXIS2",&naxis2);
-    bitpix = 0;
-    hgeti4 (header,"BITPIX",&bitpix);
-    if (bitpix == 0) {
-	/* snprintf (fitserrmsg,79, "FITSRIMAGE:  BITPIX is 0; image not read\n"); */
-	(void)close (fd);
-	return (NULL);
-	}
-    bytepix = bitpix / 8;
-    if (bytepix < 0) bytepix = -bytepix;
-
-    /* If either dimension is one and image is 3-D, read all three dimensions */
-    if (naxis == 3 && (naxis1 ==1 || naxis2 == 1)) {
-	int naxis3;
-	hgeti4 (header,"NAXIS3",&naxis3);
-	nbimage = naxis1 * naxis2 * naxis3 * bytepix;
-	}
-    else
-	nbimage = naxis1 * naxis2 * bytepix;
-
-    /* Set number of bytes to integral number of 2880-byte blocks */
-    nblocks = nbimage / FITSBLOCK;
-    if (nblocks * FITSBLOCK < nbimage)
-	nblocks = nblocks + 1;
-    nbytes = nblocks * FITSBLOCK;
-
-    /* Allocate and read image */
-    image = (char *) malloc (nbytes);
-    nbleft = nbytes;
-    imleft = image;
-    nbr = 0;
-    while (nbleft > 0) {
-	nbread = read (fd, imleft, nbleft);
-	nbr = nbr + nbread;
-#ifndef VMS
-	if (fd == STDIN_FILENO && nbread < nbleft && nbread > 0) {
-	    nbleft = nbleft - nbread;
-	    imleft = imleft + nbread;
-	    }
-	else
-#endif
-	    nbleft = 0;
-	}
-#ifndef VMS
-    if (fd != STDIN_FILENO)
-	(void)close (fd);
-#endif
-    if (nbr < nbimage) {
-	snprintf (fitserrmsg,79, "FITSRIMAGE:  %d of %d bytes read from file %s\n",
-		 nbr, nbimage, filename);
-	return (NULL);
-	}
-
-    /* Byte-reverse image, if necessary */
-    if (imswapped ())
-	imswap (bitpix, image, nbytes);
-
-    return (image);
-}
-
-
-/* FITSRFULL -- Read a FITS image of any dimension */
-
-char *
-fitsrfull (filename, nbhead, header)
-
-char	*filename;	/* Name of FITS image file */
-int	nbhead;		/* Actual length of image header(s) in bytes */
-char	*header;	/* FITS header for image (previously read) */
-{
-    int fd;
-    int nbimage, naxisi, iaxis, bytepix, nbread;
-    int bitpix, naxis, nblocks, nbytes, nbleft, nbr, simple;
-    char keyword[16];
-    char *image, *imleft;
-
-    /* Open the image file and read the header */
-    if (strncasecmp (filename,"stdin", 5)) {
-	fd = -1;
-
-	fd = fitsropen (filename);
-	if (fd < 0) {
-	    snprintf (fitserrmsg,79, "FITSRFULL:  cannot read file %s\n", filename);
-	    return (NULL);
-	    }
-
-	/* Skip over FITS header and whatever else needs to be skipped */
-	if (lseek (fd, nbhead, SEEK_SET) < 0) {
-	    (void)close (fd);
-	    snprintf (fitserrmsg,79, "FITSRFULL:  cannot skip header of file %s\n",
-		     filename);
-	    return (NULL);
-	    }
-	}
-#ifndef VMS
-    else
-	fd = STDIN_FILENO;
-#endif
-
-    /* If SIMPLE=F in header, simply put post-header part of file in buffer */
-    hgetl (header, "SIMPLE", &simple);
-    if (!simple) {
-	nbytes = getfilesize (filename) - nbhead;
-	if ((image = (char *) malloc (nbytes + 1)) == NULL) {
-	    snprintf (fitserrmsg,79, "FITSRFULL:  %d-byte image buffer cannot be allocated\n",nbytes+1);
-	    (void)close (fd);
-	    return (NULL);
-	    }
-	hputi4 (header, "NBDATA", nbytes);
-	nbread = read (fd, image, nbytes);
-	return (image);
-	}
-
-    /* Find number of bytes per pixel */
-    bitpix = 0;
-    hgeti4 (header,"BITPIX",&bitpix);
-    if (bitpix == 0) {
-	snprintf (fitserrmsg,79, "FITSRFULL:  BITPIX is 0; image not read\n");
-	(void)close (fd);
-	return (NULL);
-	}
-    bytepix = bitpix / 8;
-    if (bytepix < 0) bytepix = -bytepix;
-    nbimage = bytepix;
-
-    /* Compute size of image in bytes using relevant header parameters */
-    naxis = 1;
-    hgeti4 (header,"NAXIS",&naxis);
-    for (iaxis = 1; iaxis <= naxis; iaxis++) {
-	sprintf (keyword, "NAXIS%d", iaxis);
-	naxisi = 1;
-	hgeti4 (header,keyword,&naxisi);
-	nbimage = nbimage * naxisi;
-	}
-
-    /* Set number of bytes to integral number of 2880-byte blocks */
-    nblocks = nbimage / FITSBLOCK;
-    if (nblocks * FITSBLOCK < nbimage)
-	nblocks = nblocks + 1;
-    nbytes = nblocks * FITSBLOCK;
-
-    /* Allocate and read image */
-    image = (char *) malloc (nbytes);
-    nbleft = nbytes;
-    imleft = image;
-    nbr = 0;
-    while (nbleft > 0) {
-	nbread = read (fd, imleft, nbleft);
-	nbr = nbr + nbread;
-#ifndef VMS
-	if (fd == STDIN_FILENO && nbread < nbleft && nbread > 0) {
-	    nbleft = nbleft - nbread;
-	    imleft = imleft + nbread;
-	    }
-	else
-#endif
-	    nbleft = 0;
-	}
-#ifndef VMS
-    if (fd != STDIN_FILENO)
-	(void)close (fd);
-#endif
-    if (nbr < nbimage) {
-	snprintf (fitserrmsg,79, "FITSRFULL:  %d of %d image bytes read from file %s\n",
-		 nbr, nbimage, filename);
-	return (NULL);
-	}
-
-    /* Byte-reverse image, if necessary */
-    if (imswapped ())
-	imswap (bitpix, image, nbytes);
-
-    return (image);
-}
-
-
-/* FITSROPEN -- Open a FITS file, returning the file descriptor */
-
-int
-fitsropen (inpath)
-
-char	*inpath;	/* Pathname for FITS tables file to read */
-
-{
-    int ntry;
-    int fd;		/* file descriptor for FITS tables file (returned) */
-    char *ext;		/* extension name or number */
-    char cext = 0;
-    char *rbrac;
-    char *mwcs;		/* Pointer to WCS name separated by % */
-
-/* Check for FITS WCS specification and ignore for file opening */
-    mwcs = strchr (inpath, '%');
-
-/* Check for FITS extension and ignore for file opening */
-    ext = strchr (inpath, ',');
-    rbrac = NULL;
-    if (ext == NULL) {
-	ext = strchr (inpath, '[');
-	if (ext != NULL) {
-	    rbrac = strchr (inpath, ']');
-	    }
-	}
-
-/* Open input file */
-    for (ntry = 0; ntry < 3; ntry++) {
-	if (ext != NULL) {
-	    cext = *ext;
-	    *ext = 0;
-	    }
-	if (rbrac != NULL)
-	    *rbrac = (char) 0;
-	if (mwcs != NULL)
-	    *mwcs = (char) 0;
-	fd = open (inpath, O_RDONLY);
-	if (ext != NULL)
-	    *ext = cext;
-	if (rbrac != NULL)
-	    *rbrac = ']';
-	if (mwcs != NULL)
-	    *mwcs = '%';
-	if (fd >= 0)
-	    break;
-	else if (ntry == 2) {
-	    snprintf (fitserrmsg,79, "FITSROPEN:  cannot read file %s\n", inpath);
-	    return (-1);
-	    }
-	}
-
-    if (verbose)
-	fprintf (stderr,"FITSROPEN:  input file %s opened\n",inpath);
-
-    return (fd);
-}
-
-
-static int offset1=0;
-static int offset2=0;
-
-/* FITSRTOPEN -- Open FITS table file and fill structure with
- *		 pointers to selected keywords
- *		 Return file descriptor (-1 if unsuccessful)
- */
-
-int
-fitsrtopen (inpath, nk, kw, nrows, nchar, nbhead)
-
-char	*inpath;	/* Pathname for FITS tables file to read */
-int	*nk;		/* Number of keywords to use */
-struct Keyword	**kw;	/* Structure for desired entries */
-int	*nrows;		/* Number of rows in table (returned) */
-int	*nchar;		/* Number of characters in one table row (returned) */
-int	*nbhead;	/* Number of characters before table starts */
-
-{
-    char temp[16];
-    int fd;
-    int	lhead;		/* Maximum length in bytes of FITS header */
-    char *header;	/* Header for FITS tables file to read */
-
-/* Read FITS header from input file */
-    header = fitsrhead (inpath, &lhead, nbhead);
-    if (!header) {
-	snprintf (fitserrmsg,79,"FITSRTOPEN:  %s is not a FITS file\n",inpath);
-	return (0);
-	}
-
-/* Make sure this file is really a FITS table file */
-    temp[0] = 0;
-    (void) hgets (header,"XTENSION",16,temp);
-    if (strlen (temp) == 0) {
-	snprintf (fitserrmsg,79,
-		  "FITSRTOPEN:  %s is not a FITS table file\n",inpath);
-	free ((void *) header);
-	return (0);
-	}
-
-/* If it is a FITS file, get table information from the header */
-    else if (!strcmp (temp, "TABLE") || !strcmp (temp, "BINTABLE")) {
-	if (fitsrthead (header, nk, kw, nrows, nchar)) {
-	    snprintf (fitserrmsg,79,
-		      "FITSRTOPEN: Cannot read FITS table from %s\n",inpath);
-	    free ((void *) header);
-	    return (-1);
-	    }
-	else {
-	    fd = fitsropen (inpath);
-	    offset1 = 0;
-	    offset2 = 0;
-	    free ((void *) header);
-	    return (fd);
-	    }
-	}
-
-/* If it is another FITS extension note it and return */
-    else {
-	snprintf (fitserrmsg,79,
-		  "FITSRTOPEN:  %s is a %s extension, not table\n",
-		  inpath, temp);
-	free ((void *) header);
-	return (0);
-	}
-}
-
-static struct Keyword *pw;	/* Structure for all entries */
-static int *lpnam;		/* length of name for each field */
-static int bfields = 0;
-
-/* FITSRTHEAD -- From FITS table header, read pointers to selected keywords */
-
-int
-fitsrthead (header, nk, kw, nrows, nchar)
-
-char	*header;	/* Header for FITS tables file to read */
-int	*nk;		/* Number of keywords to use */
-struct Keyword	**kw;	/* Structure for desired entries */
-int	*nrows;		/* Number of rows in table (returned) */
-int	*nchar;		/* Number of characters in one table row (returned) */
-
-{
-    struct Keyword *rw;	/* Structure for desired entries */
-    int nfields;
-    int ifield, ik, i, ikf, ltform, kl;
-    char *h0, *h1, *tf1, *tf2;
-    char tname[12];
-    char temp[16];
-    char tform[16];
-    int tverb;
-    int bintable = 0;
-
-    h0 = header;
-
-/* Make sure this is really a FITS table file header */
-    temp[0] = 0;
-    hgets (header,"XTENSION",16,temp);
-    if (strlen (temp) == 0) {
-	snprintf (fitserrmsg,79, "FITSRTHEAD:  Not a FITS table header\n");
-	return (-1);
-	}
-    else if (!strcmp (temp, "BINTABLE")) {
-	bintable = 1;
-	}
-    else if (strcmp (temp, "TABLE")) {
-	snprintf (fitserrmsg,79, "FITSRTHEAD:  %s extension, not TABLE\n",temp);
-	return (-1);
-	}
-
-/* Get table size from FITS header */
-    *nchar = 0;
-    hgeti4 (header,"NAXIS1",nchar);
-    *nrows = 0;
-    hgeti4 (header,"NAXIS2", nrows);
-    if (*nrows <= 0 || *nchar <= 0) {
-	snprintf (fitserrmsg,79, "FITSRTHEAD: cannot read %d x %d table\n",
-		 *nrows,*nchar);
-	return (-1);
-	}
-
-/* Set up table for access to individual fields */
-    nfields = 0;
-    hgeti4 (header,"TFIELDS",&nfields);
-    if (verbose)
-	fprintf (stderr, "FITSRTHEAD: %d fields per table entry\n", nfields);
-    if (nfields > bfields) {
-	if (bfields > 0)
-	    free ((void *)pw);
-	pw = (struct Keyword *) calloc (nfields, sizeof(struct Keyword));
-	if (pw == NULL) {
-	    snprintf (fitserrmsg,79,"FITSRTHEAD: cannot allocate table structure\n");
-	    return (-1);
-	    }
-	if (bfields > 0)
-	    free ((void *)lpnam);
-	lpnam = (int *) calloc (nfields, sizeof(int));
-	if (lpnam == NULL) {
-	    snprintf (fitserrmsg,79,"FITSRTHEAD: cannot allocate length structure\n");
-	    return (-1);
-	    }
-	bfields = nfields;
-	}
-
-    tverb = verbose;
-    verbose = 0;
-    ikf = 0;
-
-    for (ifield = 0; ifield < nfields; ifield++) {
-
-    /* Name of field */
-	for (i = 0; i < 12; i++) tname[i] = 0;
-	sprintf (tname, "TTYPE%d", ifield+1);;
-	temp[0] = 0;
-	h1 = ksearch (h0,tname);
-	h0 = h1;
-	hgets (h0,tname,16,temp);
-	strcpy (pw[ifield].kname,temp);
-	pw[ifield].lname = strlen (pw[ifield].kname);
-
-    /* Sequence of field on line */
-	pw[ifield].kn = ifield + 1;
-
-    /* First column of field */
-	if (bintable)
-	    pw[ifield].kf = ikf;
-	else {
-	    for (i = 0; i < 12; i++) tname[i] = 0;
-	    sprintf (tname, "TBCOL%d", ifield+1);
-	    pw[ifield].kf = 0;
-	    hgeti4 (h0,tname, &pw[ifield].kf);
-	    }
-
-    /* Length of field */
-	for (i = 0; i < 12; i++) tname[i] = 0;
-	sprintf (tname, "TFORM%d", ifield+1);;
-	tform[0] = 0;
-	hgets (h0,tname,16,tform);
-	strcpy (pw[ifield].kform, tform);
-	ltform = strlen (tform);
-	if (tform[ltform-1] == 'A') {
-	    pw[ifield].kform[0] = 'A';
-	    for (i = 0; i < ltform-1; i++)
-		pw[ifield].kform[i+1] = tform[i];
-	    pw[ifield].kform[ltform] = (char) 0;
-	    tf1 = pw[ifield].kform + 1;
-	    kl = atof (tf1);
-	    }
-	else if (!strcmp (tform,"I"))
-	    kl = 2;
-	else if (!strcmp (tform, "J"))
-	    kl = 4;
-	else if (!strcmp (tform, "E"))
-	    kl = 4;
-	else if (!strcmp (tform, "D"))
-	    kl = 8;
-	else {
-	    tf1 = tform + 1;
-	    tf2 = strchr (tform,'.');
-	    if (tf2 != NULL)
-		*tf2 = ' ';
-	    kl = atoi (tf1);
-	    }
-	pw[ifield].kl = kl;
-	ikf = ikf + kl;
-	}
-
-/* Set up table for access to desired fields */
-    verbose = tverb;
-    if (verbose)
-	fprintf (stderr, "FITSRTHEAD: %d keywords read\n", *nk);
-
-/* If nk = 0, allocate and return structures for all table fields */
-    if (*nk <= 0) {
-	*kw = pw;
-	*nk = nfields;
-	return (0);
-	}
-    else
-	rw = *kw;
-
-/* Find each desired keyword in the header */
-    for (ik = 0; ik < *nk; ik++) {
-	if (rw[ik].kn <= 0) {
-	    for (ifield = 0; ifield < nfields; ifield++) {
-		if (rw[ik].lname != pw[ifield].lname)
-		    continue;
-		if (strcmp (pw[ifield].kname, rw[ik].kname) == 0) {
-		    break;
-		    }
-		}
-	    }
-	else
-	    ifield = rw[ik].kn - 1;
-
-/* Set pointer, lentth, and name in returned array of structures */
-	rw[ik].kn = ifield + 1;
-	rw[ik].kf = pw[ifield].kf - 1;
-	rw[ik].kl = pw[ifield].kl;
-	strcpy (rw[ik].kform, pw[ifield].kform);
-	strcpy (rw[ik].kname, pw[ifield].kname);
-	}
-
-    return (0);
-}
-
-
-int
-fitsrtline (fd, nbhead, lbuff, tbuff, irow, nbline, line)
-
-int	fd;		/* File descriptor for FITS file */
-int	nbhead;		/* Number of bytes in FITS header */
-int	lbuff;		/* Number of bytes in table buffer */
-char	*tbuff;		/* FITS table buffer */
-int	irow;		/* Number of table row to read */
-int	nbline;		/* Number of bytes to read for this line */
-char	*line;		/* One line of FITS table (returned) */
-
-{
-    int nbuff, nlbuff;
-    int nbr = 0;
-    int offset, offend, ntry, ioff;
-    char *tbuff1;
-
-    offset = nbhead + (nbline * irow);
-    offend = offset + nbline - 1;
-
-/* Read a new buffer of the FITS table into memory if needed */
-    if (offset < offset1 || offend > offset2) {
-	nlbuff = lbuff / nbline;
-	nbuff = nlbuff * nbline;
-	for (ntry = 0; ntry < 3; ntry++) {
-	    ioff = lseek (fd, offset, SEEK_SET);
-	    if (ioff < offset) {
-		if (ntry == 2)
-		    return (0);
-		else
-		    continue;
-		}
-	    nbr = read (fd, tbuff, nbuff);
-	    if (nbr < nbline) {
-		if (verbose)
-		    fprintf (stderr, "FITSRTLINE: %d / %d bytes read %d\n",
-				nbr,nbuff,ntry);
-		if (ntry == 2)
-		    return (nbr);
-		}
-	    else
-		break;
-	    }
-	offset1 = offset;
-	offset2 = offset + nbr - 1;
-	strncpy (line, tbuff, nbline);
-	return (nbline);
-	}
-    else {
-	tbuff1 = tbuff + (offset - offset1);
-	strncpy (line, tbuff1, nbline);
-	return (nbline);
-	}
-}
-
-
-void
-fitsrtlset ()
-{
-    offset1 = 0;
-    offset2 = 0;
-    return;
-}
-
-
-/* FTGETI2 -- Extract n'th column from FITS table line as short */
-
-short
-ftgeti2 (entry, kw)
-
-char	*entry;		/* Row or entry from table */
-struct Keyword *kw;	/* Table column information from FITS header */
-{
-    char temp[30];
-    short i;
-    int j;
-    float r;
-    double d;
-
-    if (ftgetc (entry, kw, temp, 30)) {
-	if (!strcmp (kw->kform, "I"))
-	    moveb (temp, (char *) &i, 2, 0, 0);
-	else if (!strcmp (kw->kform, "J")) {
-	    moveb (temp, (char *) &j, 4, 0, 0);
-	    i = (short) j;
-	    }
-	else if (!strcmp (kw->kform, "E")) {
-	    moveb (temp, (char *) &r, 4, 0, 0);
-	    i = (short) r;
-	    }
-	else if (!strcmp (kw->kform, "D")) {
-	    moveb (temp, (char *) &d, 8, 0, 0);
-	    i = (short) d;
-	    }
-	else
-	    i = (short) atof (temp);
-	return (i);
-	}
-    else
-	return ((short) 0);
-}
-
-
-/* FTGETI4 -- Extract n'th column from FITS table line as int */
-
-int
-ftgeti4 (entry, kw)
-
-char	*entry;		/* Row or entry from table */
-struct Keyword *kw;	/* Table column information from FITS header */
-{
-    char temp[30];
-    short i;
-    int j;
-    float r;
-    double d;
-
-    if (ftgetc (entry, kw, temp, 30)) {
-	if (!strcmp (kw->kform, "I")) {
-	    moveb (temp, (char *) &i, 2, 0, 0);
-	    j = (int) i;
-	    }
-	else if (!strcmp (kw->kform, "J"))
-	    moveb (temp, (char *) &j, 4, 0, 0);
-	else if (!strcmp (kw->kform, "E")) {
-	    moveb (temp, (char *) &r, 4, 0, 0);
-	    j = (int) r;
-	    }
-	else if (!strcmp (kw->kform, "D")) {
-	    moveb (temp, (char *) &d, 8, 0, 0);
-	    j = (int) d;
-	    }
-	else
-	    j = (int) atof (temp);
-	return (j);
-	}
-    else
-	return (0);
-}
-
-
-/* FTGETR4 -- Extract n'th column from FITS table line as float */
-
-float
-ftgetr4 (entry, kw)
-
-char	*entry;		/* Row or entry from table */
-struct Keyword *kw;	/* Table column information from FITS header */
-{
-    char temp[30];
-    short i;
-    int j;
-    float r;
-    double d;
-
-    if (ftgetc (entry, kw, temp, 30)) {
-	if (!strcmp (kw->kform, "I")) {
-	    moveb (temp, (char *) &i, 2, 0, 0);
-	    r = (float) i;
-	    }
-	else if (!strcmp (kw->kform, "J")) {
-	    moveb (temp, (char *) &j, 4, 0, 0);
-	    r = (float) j;
-	    }
-	else if (!strcmp (kw->kform, "E"))
-	    moveb (temp, (char *) &r, 4, 0, 0);
-	else if (!strcmp (kw->kform, "D")) {
-	    moveb (temp, (char *) &d, 8, 0, 0);
-	    r = (float) d;
-	    }
-	else
-	    r = (float) atof (temp);
-	return (r);
-	}
-    else
-	return ((float) 0.0);
-}
-
-
-/* FTGETR8 -- Extract n'th column from FITS table line as double */
-
-double
-ftgetr8 (entry, kw)
-
-char	*entry;		/* Row or entry from table */
-struct Keyword *kw;	/* Table column information from FITS header */
-{
-    char temp[30];
-    short i;
-    int j;
-    float r;
-    double d;
-
-    if (ftgetc (entry, kw, temp, 30)) {
-	if (!strcmp (kw->kform, "I")) {
-	    moveb (temp, (char *) &i, 2, 0, 0);
-	    d = (double) i;
-	    }
-	else if (!strcmp (kw->kform, "J")) {
-	    moveb (temp, (char *) &j, 4, 0, 0);
-	    d = (double) j;
-	    }
-	else if (!strcmp (kw->kform, "E")) {
-	    moveb (temp, (char *) &r, 4, 0, 0);
-	    d = (double) r;
-	    }
-	else if (!strcmp (kw->kform, "D"))
-	    moveb (temp, (char *) &d, 8, 0, 0);
-	else
-	    d = atof (temp);
-	return (d);
-	}
-    else
-	return ((double) 0.0);
-}
-
-
-/* FTGETC -- Extract n'th column from FITS table line as character string */
-
-int
-ftgetc (entry, kw, string, maxchar)
-
-char	*entry;		/* Row or entry from table */
-struct Keyword *kw;	/* Table column information from FITS header */
-char	*string;	/* Returned string */
-int	maxchar;	/* Maximum number of characters in returned string */
-{
-    int length = maxchar;
-
-    if (kw->kl < length)
-	length = kw->kl;
-    if (length > 0) {
-	strncpy (string, entry+kw->kf, length);
-	string[length] = 0;
-	return ( 1 );
-	}
-    else
-	return ( 0 );
-}
-
-extern int errno;
-
-
-/*FITSWIMAGE -- Write FITS header and image */
-
-int
-fitswimage (filename, header, image)
-
-char	*filename;	/* Name of FITS image file */
-char	*header;	/* FITS image header */
-char	*image;		/* FITS image pixels */
-
-{
-    int fd;
-
-    /* Open the output file */
-    if (strcasecmp (filename,"stdout") ) {
-
-	if (!access (filename, 0)) {
-	    fd = open (filename, O_WRONLY);
-	    if (fd < 3) {
-		snprintf (fitserrmsg,79, "FITSWIMAGE:  file %s not writeable\n", filename);
-		return (0);
-		}
-	    }
-	else {
-	    fd = open (filename, O_RDWR+O_CREAT, 0666);
-	    if (fd < 3) {
-		snprintf (fitserrmsg,79, "FITSWIMAGE:  cannot create file %s\n", filename);
-		return (0);
-		}
-	    }
-	}
-#ifndef VMS
-    else
-	fd = STDOUT_FILENO;
-#endif
-
-    return (fitswhdu (fd, filename, header, image));
-}
-
-
-/*FITSWEXT -- Write FITS header and image as extension to a file */
-
-int
-fitswext (filename, header, image)
-
-char	*filename;	/* Name of IFTS image file */
-char	*header;	/* FITS image header */
-char	*image;		/* FITS image pixels */
-
-{
-    int fd;
-
-    /* Open the output file */
-    if (strcasecmp (filename,"stdout") ) {
-
-	if (!access (filename, 0)) {
-	    fd = open (filename, O_WRONLY);
-	    if (fd < 3) {
-		snprintf (fitserrmsg,79, "FITSWEXT:  file %s not writeable\n",
-			 filename);
-		return (0);
-		}
-	    }
-	else {
-	    fd = open (filename, O_APPEND, 0666);
-	    if (fd < 3) {
-		snprintf (fitserrmsg,79, "FITSWEXT:  cannot append to file %s\n",
-			 filename);
-		return (0);
-		}
-	    }
-	}
-#ifndef VMS
-    else
-	fd = STDOUT_FILENO;
-#endif
-
-    return (fitswhdu (fd, filename, header, image));
-}
-
-
-/* FITSWHDU -- Write FITS head and image as extension */
-
-int
-fitswhdu (fd, filename, header, image)
-
-int	fd;		/* File descriptor */
-char	*filename;	/* Name of IFTS image file */
-char	*header;	/* FITS image header */
-char	*image;		/* FITS image pixels */
-{
-    int nbhead, nbimage, nblocks, bytepix, i, nbhw;
-    int bitpix, naxis, iaxis, naxisi, nbytes, nbw, nbpad, nbwp, simple;
-    char *endhead, *padding;
-    double bzero, bscale;
-    char keyword[32];
-
-    /* Change BITPIX=-16 files to BITPIX=16 with BZERO and BSCALE */
-    bitpix = 0;
-    hgeti4 (header,"BITPIX",&bitpix);
-    if (bitpix == -16) {
-	if (!hgetr8 (header, "BZERO", &bzero) &&
-	    !hgetr8 (header, "BSCALE", &bscale)) {
-	    bitpix = 16;
-	    hputi4 (header, "BITPIX", bitpix);
-	    hputr8 (header, "BZERO", 32768.0);
-	    hputr8 (header, "BSCALE", 1.0);
-	    }
-	}
-
-    /* Write header to file */
-    endhead = ksearch (header,"END") + 80;
-    nbhead = endhead - header;
-    nbhw = write (fd, header, nbhead);
-    if (nbhw < nbhead) {
-	snprintf (fitserrmsg,79, "FITSWHDU:  wrote %d / %d bytes of header to file %s\n",
-		 nbhw, nbhead, filename);
-	(void)close (fd);
-	return (0);
-	}
-
-    /* Write extra spaces to make an integral number of 2880-byte blocks */
-    nblocks = nbhead / FITSBLOCK;
-    if (nblocks * FITSBLOCK < nbhead)
-	nblocks = nblocks + 1;
-    nbytes = nblocks * FITSBLOCK;
-    nbpad = nbytes - nbhead;
-    padding = (char *)calloc (1, nbpad);
-    for (i = 0; i < nbpad; i++)
-	padding[i] = ' ';
-    nbwp = write (fd, padding, nbpad);
-    if (nbwp < nbpad) {
-	snprintf (fitserrmsg,79, "FITSWHDU:  wrote %d / %d bytes of header padding to file %s\n",
-		 nbwp, nbpad, filename);
-	(void)close (fd);
-	return (0);
-	}
-    nbhw = nbhw + nbwp;
-    free (padding);
-
-    /* Return if file has no data */
-    if (bitpix == 0 || image == NULL) {
-	/* snprintf (fitserrmsg,79, "FITSWHDU:  BITPIX is 0; image not written\n"); */
-	(void)close (fd);
-	return (0);
-	}
-
-    /* If SIMPLE=F in header, just write whatever is in the buffer */
-    hgetl (header, "SIMPLE", &simple);
-    if (!simple) {
-	hgeti4 (header, "NBDATA", &nbytes);
-	nbimage = nbytes;
-	}
-
-    else {
-
-	/* Compute size of pixel in bytes */
-	bytepix = bitpix / 8;
-	if (bytepix < 0) bytepix = -bytepix;
-	nbimage = bytepix;
-
-	/* Compute size of image in bytes using relevant header parameters */
-	naxis = 1;
-	hgeti4 (header,"NAXIS",&naxis);
-	for (iaxis = 1; iaxis <= naxis; iaxis++) {
-	    sprintf (keyword, "NAXIS%d", iaxis);
-	    naxisi = 1;
-	    hgeti4 (header,keyword,&naxisi);
-	    nbimage = nbimage * naxisi;
-	    }
-
-	/* Number of bytes to write is an integral number of FITS blocks */
-	nblocks = nbimage / FITSBLOCK;
-	if (nblocks * FITSBLOCK < nbimage)
-	    nblocks = nblocks + 1;
-	nbytes = nblocks * FITSBLOCK;
-
-	/* Byte-reverse image before writing, if necessary */
-	if (imswapped ())
-	    imswap (bitpix, image, nbimage);
-	}
-
-    /* Write image to file */
-    nbw = write (fd, image, nbimage);
-    if (nbw < nbimage) {
-	snprintf (fitserrmsg,79, "FITSWHDU:  wrote %d / %d bytes of image to file %s\n",
-		 nbw, nbimage, filename);
-	return (0);
-	}
-
-    /* Write extra zeroes to make an integral number of 2880-byte blocks */
-    nbpad = nbytes - nbimage;
-    if (nbpad > 0) {
-	padding = (char *)calloc (1, nbpad);
-	nbwp = write (fd, padding, nbpad);
-	if (nbwp < nbpad) {
-	    snprintf (fitserrmsg,79, "FITSWHDU:  wrote %d / %d bytes of image padding to file %s\n",
-		 nbwp, nbpad, filename);
-	    (void)close (fd);
-	    return (0);
-	    }
-	free (padding);
-	}
-    else
-	nbwp = 0;
-
-    (void)close (fd);
-
-    /* Byte-reverse image after writing, if necessary */
-    if (imswapped ())
-	imswap (bitpix, image, nbimage);
-
-    nbw = nbw + nbwp + nbhw;
-    return (nbw);
-}
-
-
-/*FITSCIMAGE -- Write FITS header and copy FITS image
-		Return number of bytes in output image, 0 if failure */
-
-int
-fitscimage (filename, header, filename0)
-
-char	*filename;	/* Name of output FITS image file */
-char	*header;	/* FITS image header */
-char	*filename0;	/* Name of input FITS image file */
-
-{
-    int fdout, fdin;
-    int nbhead, nbimage, nblocks, bytepix;
-    int bitpix, naxis, naxis1, naxis2, nbytes, nbw, nbpad, nbwp;
-    char *endhead, *lasthead, *padding;
-    char *image;	/* FITS image pixels */
-    char *oldhead;	/* Input file image header */
-    int nbhead0;	/* Length of input file image header */
-    int lhead0;
-    int nbbuff, nbuff, ibuff, nbr, nbdata;
-
-    /* Compute size of image in bytes using relevant header parameters */
-    naxis = 1;
-    hgeti4 (header, "NAXIS", &naxis);
-    naxis1 = 1;
-    hgeti4 (header, "NAXIS1", &naxis1);
-    naxis2 = 1;
-    hgeti4 (header, "NAXIS2", &naxis2);
-    hgeti4 (header, "BITPIX", &bitpix);
-    bytepix = bitpix / 8;
-    if (bytepix < 0) bytepix = -bytepix;
-
-    /* If either dimension is one and image is 3-D, read all three dimensions */
-    if (naxis == 3 && (naxis1 ==1 || naxis2 == 1)) {
-	int naxis3;
-	hgeti4 (header,"NAXIS3",&naxis3);
-	nbimage = naxis1 * naxis2 * naxis3 * bytepix;
-	}
-    else
-	nbimage = naxis1 * naxis2 * bytepix;
-
-    nblocks = nbimage / FITSBLOCK;
-    if (nblocks * FITSBLOCK < nbimage)
-	nblocks = nblocks + 1;
-    nbytes = nblocks * FITSBLOCK;
-
-    /* Allocate image buffer */
-    nbbuff = FITSBLOCK * 100;
-    if (nbytes < nbbuff)
-	nbbuff = nbytes;
-    image = (char *) calloc (1, nbbuff);
-    nbuff = nbytes / nbbuff;
-    if (nbytes > nbuff * nbbuff)
-	nbuff = nbuff + 1;
-
-    /* Read input file header */
-    if ((oldhead = fitsrhead (filename0, &lhead0, &nbhead0)) == NULL) {
-	snprintf (fitserrmsg, 79,"FITSCIMAGE: header of input file %s cannot be read\n",
-		 filename0);
-	return (0);
-	}
-
-    /* Find size of output header */
-    nbhead = fitsheadsize (header);
-
-    /* If overwriting, be more careful if new header is longer than old */
-    if (!strcmp (filename, filename0) && nbhead > nbhead0) {
-	if ((image = fitsrimage (filename0, nbhead0, oldhead)) == NULL) {
-	    snprintf (fitserrmsg,79, "FITSCIMAGE:  cannot read image from file %s\n",
-		     filename0);
-	    free (oldhead);
-	    return (0);
-	    }
-	return (fitswimage (filename, header, image));
-	}
-    free (oldhead);
-
-    /* Open the input file and skip over the header */
-    if (strcasecmp (filename0,"stdin")) {
-	fdin = -1;
-	fdin = fitsropen (filename0);
-	if (fdin < 0) {
-	    snprintf (fitserrmsg, 79,"FITSCIMAGE:  cannot read file %s\n", filename0);
-	    return (0);
-	    }
-
-	/* Skip over FITS header */
-	if (lseek (fdin, nbhead0, SEEK_SET) < 0) {
-	    (void)close (fdin);
-	    snprintf (fitserrmsg,79, "FITSCIMAGE:  cannot skip header of file %s\n",
-		     filename0);
-	    return (0);
-	    }
-	}
-#ifndef VMS
-    else
-	fdin = STDIN_FILENO;
-#endif
-
-    /* Open the output file */
-    if (!access (filename, 0)) {
-	fdout = open (filename, O_WRONLY);
-	if (fdout < 3) {
-	    snprintf (fitserrmsg,79, "FITSCIMAGE:  file %s not writeable\n", filename);
-	    return (0);
-	    }
-	}
-    else {
-	fdout = open (filename, O_RDWR+O_CREAT, 0666);
-	if (fdout < 3) {
-	    snprintf (fitserrmsg,79, "FITSCHEAD:  cannot create file %s\n", filename);
-	    return (0);
-	    }
-	}
-
-    /* Pad header with spaces */
-    endhead = ksearch (header,"END") + 80;
-    lasthead = header + nbhead;
-    while (endhead < lasthead)
-	*(endhead++) = ' ';
-
-    /* Write header to file */
-    nbw = write (fdout, header, nbhead);
-    if (nbw < nbhead) {
-	snprintf (fitserrmsg, 79,"FITSCIMAGE:  wrote %d / %d bytes of header to file %s\n",
-		 nbw, nbytes, filename);
-	(void)close (fdout);
-	(void)close (fdin);
-	return (0);
-	}
-
-    /* Return if no data */
-    if (bitpix == 0) {
-	(void)close (fdout);
-	(void)close (fdin);
-	return (nbhead);
-	}
-
-    nbdata = 0;
-    for (ibuff = 0; ibuff < nbuff; ibuff++) {
-	nbr = read (fdin, image, nbbuff);
-	if (nbr > 0) {
-	    nbw = write (fdout, image, nbr);
-	    nbdata = nbdata + nbw;
-	    }
-	}
-
-    /* Write extra to make integral number of 2880-byte blocks */
-    nblocks = nbdata / FITSBLOCK;
-    if (nblocks * FITSBLOCK < nbdata)
-	nblocks = nblocks + 1;
-    nbytes = nblocks * FITSBLOCK;
-    nbpad = nbytes - nbdata;
-    padding = (char *)calloc (1,nbpad);
-    nbwp = write (fdout, padding, nbpad);
-    nbw = nbdata + nbwp;
-    free (padding);
-
-    (void)close (fdout);
-    (void)close (fdin);
-
-    if (nbw < nbimage) {
-	snprintf (fitserrmsg, 79, "FITSWIMAGE:  wrote %d / %d bytes of image to file %s\n",
-		 nbw, nbimage, filename);
-	return (0);
-	}
-    else
-	return (nbw);
-}
-
-
-/* FITSWHEAD -- Write FITS header and keep file open for further writing */
-
-int
-fitswhead (filename, header)
-
-char	*filename;	/* Name of IFTS image file */
-char	*header;	/* FITS image header */
-
-{
-    int fd;
-    int nbhead, nblocks;
-    int nbytes, nbw;
-    char *endhead, *lasthead;
-
-    /* Open the output file */
-    if (!access (filename, 0)) {
-	fd = open (filename, O_WRONLY);
-	if (fd < 3) {
-	    snprintf (fitserrmsg, 79, "FITSWHEAD:  file %s not writeable\n", filename);
-	    return (0);
-	    }
-	}
-    else {
-	fd = open (filename, O_RDWR+O_CREAT, 0666);
-	if (fd < 3) {
-	    snprintf (fitserrmsg, 79, "FITSWHEAD:  cannot create file %s\n", filename);
-	    return (0);
-	    }
-	}
-
-    /* Write header to file */
-    endhead = ksearch (header,"END") + 80;
-    nbhead = endhead - header;
-    nblocks = nbhead / FITSBLOCK;
-    if (nblocks * FITSBLOCK < nbhead)
-	nblocks = nblocks + 1;
-    nbytes = nblocks * FITSBLOCK;
-
-    /* Pad header with spaces */
-    lasthead = header + nbytes;
-    while (endhead < lasthead)
-	*(endhead++) = ' ';
-    
-    nbw = write (fd, header, nbytes);
-    if (nbw < nbytes) {
-	fprintf (stderr, "FITSWHEAD:  wrote %d / %d bytes of header to file %s\n",
-		 nbw, nbytes, filename);
-	(void)close (fd);
-	return (0);
-	}
-    return (fd);
-}
-
-
-/* FITSWEXHEAD -- Write FITS header in place */
-
-int
-fitswexhead (filename, header)
-
-char	*filename;	/* Name of FITS image file with ,extension */
-char	*header;	/* FITS image header */
-
-{
-    int fd;
-    int nbhead, lhead;
-    int nbw, nbnew, nbold;
-    char *endhead, *lasthead, *oldheader;
-    char *ext, cext;
-
-    /* Compare size of existing header to size of new header */
-    fitsinherit = 0;
-    oldheader = fitsrhead (filename, &lhead, &nbhead);
-    if (oldheader == NULL) {
-	snprintf (fitserrmsg, 79, "FITSWEXHEAD:  file %s cannot be read\n", filename);
-	return (-1);
-	}
-    nbold = fitsheadsize (oldheader);
-    nbnew = fitsheadsize (header);
-
-    /* Return if the new header is bigger than the old header */
-    if (nbnew > nbold) {
-	snprintf (fitserrmsg, 79, "FITSWEXHEAD:  old header %d bytes, new header %d bytes\n", nbold,nbnew);
-	free (oldheader);
-	oldheader = NULL;
-	return (-1);
-	}
-
-    /* Add blank lines if new header is smaller than the old header */
-    else if (nbnew < nbold) {
-	strcpy (oldheader, header);
-	endhead = ksearch (oldheader,"END");
-	lasthead = oldheader + nbold;
-	while (endhead < lasthead)
-	    *(endhead++) = ' ';
-	strncpy (lasthead-80, "END", 3);
-	}
-
-    /* Pad header with spaces */
-    else {
-	endhead = ksearch (header,"END") + 80;
-	lasthead = header + nbnew;
-	while (endhead < lasthead)
-	    *(endhead++) = ' ';
-	strncpy (oldheader, header, nbnew);
-	}
-
-    /* Check for FITS extension and ignore for file opening */
-    ext = strchr (filename, ',');
-    if (ext == NULL)
-	ext = strchr (filename, '[');
-    if (ext != NULL) {
-	cext = *ext;
-	*ext = (char) 0;
-	}
-
-    /* Open the output file */
-    fd = open (filename, O_WRONLY);
-    if (ext != NULL)
-	*ext = cext;
-    if (fd < 3) {
-	snprintf (fitserrmsg, 79, "FITSWEXHEAD:  file %s not writeable\n", filename);
-	return (-1);
-	}
-
-    /* Skip to appropriate place in file */
-    (void) lseek (fd, ibhead, SEEK_SET);
-
-    /* Write header to file */
-    nbw = write (fd, oldheader, nbold);
-    (void)close (fd);
-    free (oldheader);
-    oldheader = NULL;
-    if (nbw < nbold) {
-	fprintf (stderr, "FITSWHEAD:  wrote %d / %d bytes of header to file %s\n",
-		 nbw, nbold, filename);
-	return (-1);
-	}
-    return (0);
-}
-
-
-/* ISFITS -- Return 1 if FITS file, else 0 */
-int
-isfits (filename)
-
-char    *filename;      /* Name of file for which to find size */
-{
-    int diskfile;
-    char keyword[16];
-    char *comma;
-    int nbr;
-
-    /* First check to see if this is an assignment */
-    if (strchr (filename, '='))
-	return (0);
-
-    /* Check for stdin (input from pipe) */
-    else if (!strcasecmp (filename,"stdin"))
-	return (1);
-
-    /* Then check file extension
-    else if (strsrch (filename, ".fit") ||
-	strsrch (filename, ".fits") ||
-	strsrch (filename, ".fts"))
-	return (1); */
-
-    /* If no FITS file extension, try opening the file */
-    else {
-	if ((comma = strchr (filename,',')))
-	    *comma = (char) 0;
-	if ((diskfile = open (filename, O_RDONLY)) < 0) {
-	    if (comma)
-		*comma = ',';
-	    return (0);
-	    }
-	else {
-	    nbr = read (diskfile, keyword, 8);
-	    if (comma)
-		*comma = ',';
-	    close (diskfile);
-	    if (nbr < 8)
-		return (0);
-	    else if (!strncmp (keyword, "SIMPLE", 6))
-		return (1);
-	    else
-		return (0);
-	    }
-	}
-}
-
-
-/* FITSHEADSIZE -- Find size of FITS header */
-
-int
-fitsheadsize (header)
-
-char	*header;	/* FITS header */
-{
-    char *endhead;
-    int nbhead, nblocks;
-
-    endhead = ksearch (header,"END") + 80;
-    nbhead = endhead - header;
-    nblocks = nbhead / FITSBLOCK;
-    if (nblocks * FITSBLOCK < nbhead)
-        nblocks = nblocks + 1;
-    return (nblocks * FITSBLOCK);
-}
-
-
-/* Print error message */
-void
-fitserr ()
-{   fprintf (stderr, "%s\n",fitserrmsg);
-    return; }
-
-
-/* MOVEB -- Copy nbytes bytes from source+offs to dest+offd (any data type) */
-
-void
-moveb (source, dest, nbytes, offs, offd)
-
-char *source;	/* Pointer to source */
-char *dest;	/* Pointer to destination */
-int nbytes;	/* Number of bytes to move */
-int offs;	/* Offset in bytes in source from which to start copying */
-int offd;	/* Offset in bytes in destination to which to start copying */
-{
-char *from, *last, *to;
-        from = source + offs;
-        to = dest + offd;
-        last = from + nbytes;
-        while (from < last) *(to++) = *(from++);
-        return;
-}
-
-/*
- * Feb  8 1996	New subroutines
- * Apr 10 1996	Add subroutine list at start of file
- * Apr 17 1996	Print error message to stderr
- * May  2 1996	Write using stream IO
- * May 14 1996	If FITSRTOPEN NK is zero, return all keywords in header
- * May 17 1996	Make header internal to FITSRTOPEN
- * Jun  3 1996	Use stream I/O for input as well as output
- * Jun 10 1996	Remove unused variables after running lint
- * Jun 12 1996	Deal with byte-swapped images
- * Jul 11 1996	Rewrite code to separate header and data reading
- * Aug  6 1996  Fixed small defects after lint
- * Aug  6 1996  Drop unused NBHEAD argument from FITSRTHEAD
- * Aug 13 1996	If filename is stdin, read from standard input instead of file
- * Aug 30 1996	Use write for output, not fwrite
- * Sep  4 1996	Fix mode when file is created
- * Oct 15 1996	Drop column argument from FGET* subroutines
- * Oct 15 1996	Drop unused variable 
- * Dec 17 1996	Add option to skip bytes in file before reading the header
- * Dec 27 1996	Turn nonprinting header characters into spaces
- *
- * Oct  9 1997	Add FITS extension support as filename,extension
- * Dec 15 1997	Fix minor bugs after lint
- *
- * Feb 23 1998	Do not append primary header if getting header for ext. 0
- * Feb 23 1998	Accept either bracketed or comma extension
- * Feb 24 1998	Add SIMPLE keyword to start of extracted extension
- * Apr 30 1998	Fix error return if not table file after Allan Brighton
- * May  4 1998	Fix error in argument sequence in HGETS call
- * May 27 1998	Include fitsio.h and imio.h
- * Jun  1 1998	Add VMS fixes from Harry Payne at STScI
- * Jun  3 1998	Fix bug reading EXTNAME
- * Jun 11 1998	Initialize all header parameters before reading them
- * Jul 13 1998	Clarify argument definitions
- * Aug  6 1998	Rename fitsio.c to fitsfile.c to avoid conflict with CFITSIO
- * Aug 13 1998	Add FITSWHEAD to write only header
- * Sep 25 1998	Allow STDIN or stdin for standard input reading
- * Oct  5 1998	Add isfits() to decide whether a file is FITS
- * Oct  9 1998	Assume stdin and STDIN to be FITS files in isfits()
- * Nov 30 1998	Fix bug found by Andreas Wicenec when reading large headers
- * Dec  8 1998	Fix bug introduced by previous bug fix
- *
- * Jan  4 1999	Do not print error message if BITPIX is 0
- * Jan 27 1999	Read and write all of 3D images if one dimension is 1
- * Jan 27 1999	Pad out data to integral number of 2880-byte blocks
- * Apr 29 1999	Write BITPIX=-16 files as BITPIX=16 with BSCALE and BZERO
- * Apr 30 1999	Add % as alternative to , to denote sub-images
- * May 25 1999	Set buffer offsets to 0 when FITS table file is opened
- * Jul 14 1999	Do not try to write image data if BITPIX is 0
- * Sep 27 1999	Add STDOUT as output filename option in fitswimage()
- * Oct  6 1999	Set header length global variable hget.lhead0 in fitsrhead()
- * Oct 14 1999	Update header length as it is changed in fitsrhead()
- * Oct 20 1999	Change | in if statements to ||
- * Oct 25 1999	Change most malloc() calls to calloc()
- * Nov 24 1999	Add fitscimage()
- *
- * Feb 23 2000	Fix problem with some error returns in fitscimage()
- * Mar 17 2000	Drop unused variables after lint
- * Jul 20 2000	Drop BITPIX and NAXIS from primary header if extension printerd
- * Jul 20 2000	Start primary part of header with ROOTHEAD keyword
- * Jul 28 2000	Add loop to deal with buffered stdin
- *
- * Jan 11 2001	Print all messages to stderr
- * Jan 12 2001	Add extension back onto filename after fitsropen() (Guy Rixon)
- * Jan 18 2001	Drop EXTEND keyword when extracting an extension
- * Jan 18 2001	Add fitswext() to append HDU and fitswhdu() to do actual writing
- * Jan 22 2001	Ignore WCS name or letter following a : in file name in fitsrhead()
- * Jan 30 2001	Fix FITSCIMAGE so it doesn't overwrite data when overwriting a file
- * Feb 20 2001	Ignore WCS name or letter following a : in file name in fitsropen()
- * Feb 23 2001	Initialize rbrac in fitsropen()
- * Mar  8 2001	Use % instead of : for WCS specification in file name
- * Mar  9 2001	Fix bug so primary header is always appended to secondary header
- * Mar  9 2001	Change NEXTEND to NUMEXT in appended primary header
- * Mar 20 2001	Declare fitsheadsize() in fitschead()
- * Apr 24 2001	When matching column names, use longest length
- * Jun 27 2001	In fitsrthead(), allocate pw and lpnam only if more space needed
- * Aug 24 2001	In isfits(), return 0 if argument contains an equal sign
- *
- * Jan 28 2002	In fitsrhead(), allow stdin to include extension and/or WCS selection
- * Jun 18 2002	Save error messages as fitserrmsg and use fitserr() to print them
- * Oct 21 2002	Add fitsrsect() to read a section of an image
- *
- * Feb  4 2003	Open catalog file rb instead of r (Martin Ploner, Bern)
- * Apr  2 2003	Drop unused variable in fitsrsect()
- * Jul 11 2003	Use strcasecmp() to check for stdout and stdin
- * Aug  1 2003	If no other header, return root header from fitsrhead()
- * Aug 20 2003	Add fitsrfull() to read n-dimensional FITS images
- * Aug 21 2003	Modify fitswimage() to always write n-dimensional FITS images
- * Nov 18 2003	Fix minor bug in fitswhdu()
- * Dec  3 2003	Remove unused variable lasthead in fitswhdu()
- *
- * May  3 2004	Do not always append primary header to extension header
- * May  3 2004	Add ibhead as position of header read in file
- * May 19 2004	Do not reset ext if NULL in fitswexhead()
- * Jul  1 2004	Initialize INHERIT to 1
- * Aug 30 2004	Move fitsheadsize() declaration to fitsfile.h
- * Aug 31 2004	If SIMPLE=F, put whatever is in file after header in image
- *
- * Mar 17 2005	Use unbuffered I/O in isfits() for robustness
- * Jun 27 2005	Drop unused variable nblocks in fitswexhead()
- * Aug  8 2005	Fix space-padding bug in fitswexhead() found by Armin Rest
- * Sep 30 2005	Fix fitsrsect() to position relatively, not absolutely
- * Oct 28 2005	Add error message if desired FITS extension is not found
- * Oct 28 2005	Fix initialization problem found by Sergey Koposov
- *
- * Feb 23 2006	Add fitsrtail() to read appended FITS headers
- * Feb 27 2006	Add file name to header-reading error messages
- * May  3 2006	Remove declarations of unused variables
- * Jun 20 2006	Initialize uninitialized variables
- * Nov  2 2006	Change all realloc() calls to calloc()
- *
- * Jan  5 2007	In fitsrtail(), change control characters in header to spaces
- * Apr 30 2007	Improve error reporting in FITSRFULL
- * Nov 28 2007	Add support to BINTABLE in ftget*() and fitsrthead()
- * Dec 20 2007	Add data heap numerated by PCOUNT when skipping HDU in fitsrhead()
- * Dec 20 2007	Return NULL pointer if fitsrhead() cannot find requested HDU
- *
- * Apr  7 2008	Drop comma from name when reading file in isfits()
- * Jun 27 2008	Do not append primary data header if it is the only header
- * Nov 21 2008	In fitswhead(), print message if too few bytes written
- *
- * Sep 18 2009	In fitswexhead() write to error string instead of stderr
- * Sep 22 2009	In fitsrthead(), fix lengths for ASCII numeric table entries
- * Sep 25 2009	Add subroutine moveb() and fix calls to it
- * Sep 25 2009	Fix several small errors found by Jessicalas Burke
- *
- * Mar 29 2010	In fitswhead(), always pad blocks to 2880 bytes with spaces
- * Mar 31 2010	In fitsrhead(), fix bug reading long primary headers
- *
- * Sep 15 2011	In fitsrsect() declare impos and nblin off_t
- * Sep 15 2011	In fitsrtail() declare offset off_t
- * Sep 15 2011	Declare global variable ibhead off_t
- */