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      1 /* $Id: tif_close.c,v 1.21 2016-01-23 21:20:34 erouault Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1988-1997 Sam Leffler
      5  * Copyright (c) 1991-1997 Silicon Graphics, Inc.
      6  *
      7  * Permission to use, copy, modify, distribute, and sell this software and
      8  * its documentation for any purpose is hereby granted without fee, provided
      9  * that (i) the above copyright notices and this permission notice appear in
     10  * all copies of the software and related documentation, and (ii) the names of
     11  * Sam Leffler and Silicon Graphics may not be used in any advertising or
     12  * publicity relating to the software without the specific, prior written
     13  * permission of Sam Leffler and Silicon Graphics.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
     16  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
     17  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
     18  *
     19  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
     20  * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
     21  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
     22  * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
     23  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
     24  * OF THIS SOFTWARE.
     25  */
     26 
     27 /*
     28  * TIFF Library.
     29  */
     30 #include "tiffiop.h"
     31 #include <string.h>
     32 
     33 /************************************************************************/
     34 /*                            TIFFCleanup()                             */
     35 /************************************************************************/
     36 
     37 /**
     38  * Auxiliary function to free the TIFF structure. Given structure will be
     39  * completely freed, so you should save opened file handle and pointer
     40  * to the close procedure in external variables before calling
     41  * _TIFFCleanup(), if you will need these ones to close the file.
     42  *
     43  * @param tif A TIFF pointer.
     44  */
     45 
     46 void
     47 TIFFCleanup(TIFF* tif)
     48 {
     49 	/*
     50          * Flush buffered data and directory (if dirty).
     51          */
     52 	if (tif->tif_mode != O_RDONLY)
     53 		TIFFFlush(tif);
     54 	(*tif->tif_cleanup)(tif);
     55 	TIFFFreeDirectory(tif);
     56 
     57 	if (tif->tif_dirlist)
     58 		_TIFFfree(tif->tif_dirlist);
     59 
     60 	/*
     61          * Clean up client info links.
     62          */
     63 	while( tif->tif_clientinfo )
     64 	{
     65 		TIFFClientInfoLink *psLink = tif->tif_clientinfo;
     66 
     67 		tif->tif_clientinfo = psLink->next;
     68 		_TIFFfree( psLink->name );
     69 		_TIFFfree( psLink );
     70 	}
     71 
     72 	if (tif->tif_rawdata && (tif->tif_flags&TIFF_MYBUFFER))
     73 		_TIFFfree(tif->tif_rawdata);
     74 	if (isMapped(tif))
     75 		TIFFUnmapFileContents(tif, tif->tif_base, (toff_t)tif->tif_size);
     76 
     77 	/*
     78          * Clean up custom fields.
     79          */
     80 	if (tif->tif_fields && tif->tif_nfields > 0) {
     81 		uint32 i;
     82 
     83 		for (i = 0; i < tif->tif_nfields; i++) {
     84 			TIFFField *fld = tif->tif_fields[i];
     85 			if (fld->field_bit == FIELD_CUSTOM &&
     86 			    strncmp("Tag ", fld->field_name, 4) == 0) {
     87 				_TIFFfree(fld->field_name);
     88 				_TIFFfree(fld);
     89 			}
     90 		}
     91 
     92 		_TIFFfree(tif->tif_fields);
     93 	}
     94 
     95         if (tif->tif_nfieldscompat > 0) {
     96                 uint32 i;
     97 
     98                 for (i = 0; i < tif->tif_nfieldscompat; i++) {
     99                         if (tif->tif_fieldscompat[i].allocated_size)
    100                                 _TIFFfree(tif->tif_fieldscompat[i].fields);
    101                 }
    102                 _TIFFfree(tif->tif_fieldscompat);
    103         }
    104 
    105 	_TIFFfree(tif);
    106 }
    107 
    108 /************************************************************************/
    109 /*                            TIFFClose()                               */
    110 /************************************************************************/
    111 
    112 /**
    113  * Close a previously opened TIFF file.
    114  *
    115  * TIFFClose closes a file that was previously opened with TIFFOpen().
    116  * Any buffered data are flushed to the file, including the contents of
    117  * the current directory (if modified); and all resources are reclaimed.
    118  *
    119  * @param tif A TIFF pointer.
    120  */
    121 
    122 void
    123 TIFFClose(TIFF* tif)
    124 {
    125 	TIFFCloseProc closeproc = tif->tif_closeproc;
    126 	thandle_t fd = tif->tif_clientdata;
    127 
    128 	TIFFCleanup(tif);
    129 	(void) (*closeproc)(fd);
    130 }
    131 
    132 /* vim: set ts=8 sts=8 sw=8 noet: */
    133 
    134 /*
    135  * Local Variables:
    136  * mode: c
    137  * c-basic-offset: 8
    138  * fill-column: 78
    139  * End:
    140  */
    141