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/********************************************************************************/
/* */
/* Papyrus 3 library. */
/* This library constitutes a DICOM file system which helps reading and writing */
/* DICOM files and DICOMDIR files. */
/* */
/* Copyright (C) 2004 - Service of Medical Informatics - */
/* University Hospitals of Geneva (HUG), Geneva, Switzerland */
/* */
/* This library is a 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 2.1 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 */
/* */
/* You can contact us for more information at osiris@sim.hcuge.ch */
/* or by writing to Papyrus, */
/* Unite d'Imagerie Numerique / Service d'Informatique Medicale / HUG, */
/* 24, Micheli-du-Crest street, 1211 Geneva 14, Switzerland. */
/* */
/* The University Hopitals of Geneva, hereby disclaims all copyright interest */
/* in the library `Papyrus' (a library for reading and writing DICOM files). */
/* */
/* Geneva, april 2004 */
/* Antoine Geissbuhler, head of the Service of Medical Informatics, */
/* University Hospitals of Geneva, Switzerland */
/* */
/********************************************************************************/
/********************************************************************************/
/* */
/* Project : P A P Y R U S Toolkit */
/* File : PapyFileSystemUnix3.c */
/* Function : contains machine specific calls to the different file systems */
/* Authors : Christian Girard */
/* Marianne Logean */
/* */
/* History : 06.1995 version 3.1 */
/* 02.1996 version 3.3 */
/* 02.1999 version 3.6 */
/* 04.2001 version 3.7 */
/* 09.2001 version 3.7 on CVS */
/* 10.2001 version 3.71 MAJ Dicom par CHG */
/* */
/********************************************************************************/
/* ------------------------- includes ------------------------------------------*/
#include <dirent.h>
#include <stdio.h>
#include <string.h>
#include <malloc.h>
#include <fcntl.h> /* open */
#ifndef _WINDOWS
#ifndef Mac
#ifdef hpux
#include <sys/unistd.h>
#else
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/stat.h>
#include <unistd.h>
#endif
#endif
#endif
#ifndef PapyTypeDef3H
#include "PapyTypeDef3.h"
#endif
#ifndef __PapyError3__
#include "PapyError3.h"
#endif
/********************************************************************************/
/* */
/* Papy3FCreate : overwrites the standard create file function */
/* return : standard error message */
/* */
/********************************************************************************/
int
Papy3FCreate (char *inFilenameP, PAPY_FILE inVolume, PAPY_FILE *inFp, void **inFSSpecP)
{
int err;
PAPY_FILE file;
if ((file = fopen (inFilenameP, "rb")) != NULL)
{
(void) fclose (file);
RETURN (papFileAlreadyExist);
}
if ((file = fopen (inFilenameP, "wb")) == NULL)
RETURN (papFileCreationFailed);
(void) fclose (file);
return 0;
} /* endof Papy3FCreate */
/********************************************************************************/
/* */
/* Papy3FOpen : overwrites the standard open file function */
/* return : standard error message */
/* */
/********************************************************************************/
PapyShort
Papy3FOpen (char *inFilenameP, char inPermission, PAPY_FILE inVolumeNb, PAPY_FILE *outFp,
void *inFSSpecP)
/* inPermission r : read, w : write, a : read/write (all) */
{
PAPY_FILE file;
switch (inPermission) {
case 'r' : if ((*outFp = fopen (inFilenameP, "rb")) == NULL)
RETURN (papOpenFile);
break;
case 'w' : if ((*outFp = fopen (inFilenameP, "wb")) == NULL)
RETURN (papOpenFile);
break;
case 'a' :
default : if ((*outFp = fopen (inFilenameP, "r+")) == NULL)
RETURN (papOpenFile);
}/* endsandwich */
/*outFp = &file;*/
return 0;
} /* endof Papy3FOpen */
/********************************************************************************/
/* */
/* Papy3FClose : overwrites the standard close file function */
/* return : standard error message */
/* */
/********************************************************************************/
int
Papy3FClose (PAPY_FILE *inFp)
{
fclose (*inFp);
return 0;
} /* endof Papy3FClose */
/********************************************************************************/
/* */
/* Papy3FDelete : overwrites the standard delete file function */
/* return : standard error message */
/* */
/********************************************************************************/
int
Papy3FDelete (char *inFilenameP, void *inIdentifierP)
{
return (unlink ((char *) inFilenameP));
} /* endof Papy3FDelete */
/********************************************************************************/
/* */
/* Papy3FRead : overwrites the standard read from file function */
/* return : error (0 if OK, negative value otherwise) */
/* */
/********************************************************************************/
PapyShort
Papy3FRead (PAPY_FILE inFp, PapyULong *ioBytesToReadP, PapyULong inNb, void *ioBufferP)
{
PapyShort err = 0;
err = (PapyShort)(fread ((char *) ioBufferP, (size_t) *ioBytesToReadP, inNb, inFp));
if (err != inNb) return -1;
else return 0;
} /* endof Papy3FRead */
/********************************************************************************/
/* */
/* Papy3FWrite : overwrite the standard write to file function */
/* return : error (0 if OK, negative value otherwise) */
/* */
/********************************************************************************/
PapyShort
Papy3FWrite (PAPY_FILE inFp, PapyULong *ioBytesToWriteP, PapyULong inNb, void *outBufferP)
{
PapyShort err = 0;
err = (PapyShort)(fwrite ((char *) outBufferP, (int)*ioBytesToWriteP, inNb, inFp));
return err;
} /* endof Papy3FWrite */
/********************************************************************************/
/* */
/* Papy3FSeek : Papyrus own build file pointer positioning function. */
/* return : standard error message */
/* */
/********************************************************************************/
int
Papy3FSeek (PAPY_FILE inFp, int inPosMode, PapyLong inOffset)
{
PapyLong startPos, fileLimit;
long err;
if (inOffset > 100000L)
{
startPos = (PapyLong) ftell (inFp);
/* get the end of file */
err = fseek (inFp, 0L, (int) SEEK_END);
fileLimit = (PapyLong) ftell (inFp);
if (inOffset > fileLimit) return -1;
err = fseek (inFp, (long) startPos, (int) SEEK_SET);
}
err = fseek (inFp, (long) inOffset, inPosMode);
return err;
} /* endof Papy3FSeek */
/********************************************************************************/
/* */
/* Papy3FTell : Papyrus function to get the current position of the file */
/* pointer. */
/* return : standard error message */
/* */
/********************************************************************************/
int
Papy3FTell (PAPY_FILE inFp, PapyLong *outFilePosP)
{
int err = 0;
*outFilePosP = (PapyLong) ftell (inFp);
return err;
} /* endof Papy3FTell */
/********************************************************************************/
/* */
/* Papy3FPrint : Papyrus function to set a string. */
/* */
/********************************************************************************/
void
Papy3FPrint (char *inStringP, char *inFormatP, int inValue)
{
sprintf (inStringP, inFormatP, inValue);
} /* endof Papy3FPrint */
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