chromium/third_party/zlib/contrib/minizip/minizip.c

/*
   minizip.c
   Version 1.1, February 14h, 2010
   sample part of the MiniZip project - ( http://www.winimage.com/zLibDll/minizip.html )

         Copyright (C) 1998-2010 Gilles Vollant (minizip) ( http://www.winimage.com/zLibDll/minizip.html )

         Modifications of Unzip for Zip64
         Copyright (C) 2007-2008 Even Rouault

         Modifications for Zip64 support on both zip and unzip
         Copyright (C) 2009-2010 Mathias Svensson ( http://result42.com )
*/

#if (!defined(_WIN32)) && (!defined(WIN32)) && (!defined(__APPLE__)) && (!defined(__ANDROID_API__))
        #ifndef __USE_FILE_OFFSET64
                #define __USE_FILE_OFFSET64
        #endif
        #ifndef __USE_LARGEFILE64
                #define __USE_LARGEFILE64
        #endif
        #ifndef _LARGEFILE64_SOURCE
                #define _LARGEFILE64_SOURCE
        #endif
        #ifndef _FILE_OFFSET_BIT
                #define _FILE_OFFSET_BIT …
        #endif
#endif

#if defined(__APPLE__) || defined(__HAIKU__) || defined(MINIZIP_FOPEN_NO_64) || defined(__Fuchsia__) || defined(__ANDROID_API__)
// In darwin and perhaps other BSD variants off_t is a 64 bit value, hence no need for specific 64 bit functions
#define FOPEN_FUNC …
#define FTELLO_FUNC …
#define FSEEKO_FUNC …
#else
#define FOPEN_FUNC(filename, mode) …
#define FTELLO_FUNC(stream) …
#define FSEEKO_FUNC(stream, offset, origin) …
#endif



#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <fcntl.h>

#ifdef _WIN32
# include <direct.h>
# include <io.h>
#else
# include <unistd.h>
# include <utime.h>
# include <sys/types.h>
# include <sys/stat.h>
#endif

#include "zip.h"

#ifdef _WIN32
        #define USEWIN32IOAPI
        #include "iowin32.h"
#endif



#define WRITEBUFFERSIZE …
#define MAXFILENAME …

#ifdef _WIN32
/* f: name of file to get info on, tmzip: return value: access,
   modification and creation times, dt: dostime */
static int filetime(const char *f, tm_zip *tmzip, uLong *dt) {
  int ret = 0;
  {
      FILETIME ftLocal;
      HANDLE hFind;
      WIN32_FIND_DATAA ff32;

      hFind = FindFirstFileA(f,&ff32);
      if (hFind != INVALID_HANDLE_VALUE)
      {
        FileTimeToLocalFileTime(&(ff32.ftLastWriteTime),&ftLocal);
        FileTimeToDosDateTime(&ftLocal,((LPWORD)dt)+1,((LPWORD)dt)+0);
        FindClose(hFind);
        ret = 1;
      }
  }
  return ret;
}
#else
#if defined(unix) || defined(__APPLE__) || defined(__Fuchsia__) || defined(__ANDROID_API__)
/* f: name of file to get info on, tmzip: return value: access,
   modification and creation times, dt: dostime */
static int filetime(const char *f, tm_zip *tmzip, uLong *dt) {
  (void)dt;
  int ret=0;
  struct stat s;        /* results of stat() */
  struct tm* filedate;
  time_t tm_t=0;

  if (strcmp(f,"-")!=0)
  {
    char name[MAXFILENAME+1];
    size_t len = strlen(f);
    if (len > MAXFILENAME)
      len = MAXFILENAME;

    strncpy(name, f,MAXFILENAME-1);
    /* strncpy doesn't append the trailing NULL, of the string is too long. */
    name[ MAXFILENAME ] = '\0';

    if (name[len - 1] == '/')
      name[len - 1] = '\0';
    /* not all systems allow stat'ing a file with / appended */
    if (stat(name,&s)==0)
    {
      tm_t = s.st_mtime;
      ret = 1;
    }
  }
  filedate = localtime(&tm_t);

  tmzip->tm_sec  = filedate->tm_sec;
  tmzip->tm_min  = filedate->tm_min;
  tmzip->tm_hour = filedate->tm_hour;
  tmzip->tm_mday = filedate->tm_mday;
  tmzip->tm_mon  = filedate->tm_mon ;
  tmzip->tm_year = filedate->tm_year;

  return ret;
}
#else
/* f: name of file to get info on, tmzip: return value: access,
   modification and creation times, dt: dostime */
static int filetime(const char *f, tm_zip *tmzip, uLong *dt) { … }
#endif
#endif




static int check_exist_file(const char* filename) { … }

static void do_banner(void) { … }

static void do_help(void) { … }

/* calculate the CRC32 of a file,
   because to encrypt a file, we need known the CRC32 of the file before */
static int getFileCrc(const char* filenameinzip, void* buf, unsigned long size_buf, unsigned long* result_crc) { … }

static int isLargeFile(const char* filename) { … }

int main(int argc, char *argv[]) { … }