scripts/pdn/src/PdnPinDumper/module/def/5.8-p029/cdefzlib/cdefzlib.c

/*******************************************************************************
 *******************************************************************************
 * Copyright 2014, Cadence Design Systems
 * 
 * This  file  is  part  of  the  Cadence  LEF/DEF  Open   Source
 * Distribution,  Product Version 5.8. 
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 * 
 *        http://www.apache.org/licenses/LICENSE-2.0
 * 
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 *    implied. See the License for the specific language governing
 *    permissions and limitations under the License.
 * 
 * For updates, support, or to become part of the LEF/DEF Community,
 * check www.openeda.org for details.
 *******************************************************************************
 ******************************************************************************/

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <limits.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "zlib.h"
#include "defzlib.h"
#include "defrReader.h"

/*
 * Private functions:
 */
size_t defGZip_read(FILE* file, char* buf, size_t len) {
  return gzread((gzFile)file, buf, (unsigned int)len);
}

/*
 * Public functions:
 */
defGZFile 
defGZipOpen(const char *gzipPath, const char* mode) {
  defGZFile fptr;

  if (!gzipPath)
    return NULL;

  fptr = gzopen(gzipPath, mode);

  if (fptr) {
    /* successfully open the gzip file */
    /* set the read function to read from a compressed file */
    defrSetReadFunction(defGZip_read);
    return (defGZFile)fptr;
  } else
    return NULL;
}

int defGZipClose(defGZFile filePtr) {
  return (gzclose((gzFile)filePtr));
}

int defrReadGZip(defGZFile file, const char* gzipFile, defiUserData uData) {
  return defrRead((FILE*)file, gzipFile, uData, 1);
}