minizip.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <utime.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "zip.h"

Go to the source code of this file.

Macros
#define	__USE_FILE_OFFSET64
#define	__USE_LARGEFILE64
#define	_LARGEFILE64_SOURCE
#define	_FILE_OFFSET_BIT   64
#define	FOPEN_FUNC(filename, mode)   fopen64(filename, mode)
#define	FTELLO_FUNC(stream)   ftello64(stream)
#define	FSEEKO_FUNC(stream, offset, origin)   fseeko64(stream, offset, origin)
#define	WRITEBUFFERSIZE   (16384)
#define	MAXFILENAME   (256)

Functions
uLong	filetime (char *f, tm_zip *tmzip, uLong *dt) const
static int	check_exist_file (char *filename) const
static void	do_banner ()
static void	do_help ()
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, argv)

Macro Definition Documentation

__USE_FILE_OFFSET64

#define __USE_FILE_OFFSET64

Definition at line 18 of file minizip.c.

__USE_LARGEFILE64

#define __USE_LARGEFILE64

Definition at line 21 of file minizip.c.

_FILE_OFFSET_BIT

#define _FILE_OFFSET_BIT   64

Definition at line 27 of file minizip.c.

_LARGEFILE64_SOURCE

#define _LARGEFILE64_SOURCE

Definition at line 24 of file minizip.c.

FOPEN_FUNC

#define FOPEN_FUNC	(		filename,
			mode
	)		fopen64(filename, mode)

Definition at line 37 of file minizip.c.

FSEEKO_FUNC

#define FSEEKO_FUNC	(		stream,
			offset,
			origin
	)		fseeko64(stream, offset, origin)

Definition at line 39 of file minizip.c.

FTELLO_FUNC

#define FTELLO_FUNC

(

stream

)

ftello64(stream)

Definition at line 38 of file minizip.c.

MAXFILENAME

#define MAXFILENAME   (256)

Definition at line 71 of file minizip.c.

WRITEBUFFERSIZE

#define WRITEBUFFERSIZE   (16384)

Definition at line 70 of file minizip.c.

Function Documentation

check_exist_file()

static int check_exist_file ( char*  filename ) const

static

Definition at line 154 of file minizip.c.

{
    FILE* ftestexist;
    int ret = 1;
    ftestexist = FOPEN_FUNC(filename,"rb");
    if (ftestexist==NULL)
        ret = 0;
    else
        fclose(ftestexist);
    return ret;
}

References benchmark::FILE, FOPEN_FUNC, and NULL.

Referenced by main().

do_banner()

static void do_banner ( )

static

Definition at line 167 of file minizip.c.

{
    printf("MiniZip 1.1, demo of zLib + MiniZip64 package, written by Gilles Vollant\n");
    printf("more info on MiniZip at http://www.winimage.com/zLibDll/minizip.html\n\n");
}

References printf().

Referenced by main().

do_help()

static void do_help ( )

static

Definition at line 173 of file minizip.c.

{
    printf("Usage : minizip [-o] [-a] [-0 to -9] [-p password] [-j] file.zip [files_to_add]\n\n" \
           "  -o  Overwrite existing file.zip\n" \
           "  -a  Append to existing file.zip\n" \
           "  -0  Store only\n" \
           "  -1  Compress faster\n" \
           "  -9  Compress better\n\n" \
           "  -j  exclude path. store only the file name.\n\n");
}

References printf().

Referenced by main().

filetime()

uLong filetime	(	char *	f,
		tm_zip *	tmzip,
		uLong *	dt
	)		const

Definition at line 141 of file minizip.c.

{
    return 0;
}

Referenced by main(), and unzRepair().

getFileCrc()

static int getFileCrc ( const char *  filenameinzip, void *  buf, unsigned long  size_buf, unsigned long *  result_crc  )

static

Definition at line 186 of file minizip.c.

{
   unsigned long calculate_crc=0;
   int err=ZIP_OK;
   FILE * fin = FOPEN_FUNC(filenameinzip,"rb");
 
   unsigned long size_read = 0;
   unsigned long total_read = 0;
   if (fin==NULL)
   {
       err = ZIP_ERRNO;
   }
 
    if (err == ZIP_OK)
        do
        {
            err = ZIP_OK;
            size_read = fread(buf,1,size_buf,fin);
            if (size_read < size_buf)
                if (feof(fin)==0)
            {
                printf("error in reading %s\n",filenameinzip);
                err = ZIP_ERRNO;
            }
 
            if (size_read>0)
                calculate_crc = crc32_z(calculate_crc,buf,size_read);
            total_read += size_read;
 
        } while ((err == ZIP_OK) && (size_read>0));
 
    if (fin)
        fclose(fin);
 
    *result_crc=calculate_crc;
    printf("file %s crc %lx\n", filenameinzip, calculate_crc);
    return err;
}

References crc32_z(), err, benchmark::FILE, FOPEN_FUNC, NULL, printf(), ZIP_ERRNO, and ZIP_OK.

Referenced by main().

isLargeFile()

static int isLargeFile ( const char *  filename )

static

Definition at line 225 of file minizip.c.

{
  int largeFile = 0;
  ZPOS64_T pos = 0;
  FILE* pFile = FOPEN_FUNC(filename, "rb");
 
  if(pFile != NULL)
  {
    FSEEKO_FUNC(pFile, 0, SEEK_END);
    pos = (ZPOS64_T)FTELLO_FUNC(pFile);
 
                printf("File : %s is %lld bytes\n", filename, pos);
 
    if(pos >= 0xffffffff)
     largeFile = 1;
 
                fclose(pFile);
  }
 
 return largeFile;
}

References benchmark::FILE, FOPEN_FUNC, FSEEKO_FUNC, FTELLO_FUNC, NULL, pos, printf(), and SEEK_END.

Referenced by main().

main()

int main	(	int	argc,
		argv
	)

Definition at line 247 of file minizip.c.

{
    int i;
    int opt_overwrite=0;
    int opt_compress_level=Z_DEFAULT_COMPRESSION;
    int opt_exclude_path=0;
    int zipfilenamearg = 0;
    char filename_try[MAXFILENAME+16];
    int zipok;
    int err=0;
    size_t size_buf=0;
    void* buf=NULL;
    const char* password=NULL;
 
 
    do_banner();
    if (argc==1)
    {
        do_help();
        return 0;
    }
    else
    {
        for (i=1;i<argc;i++)
        {
            if ((*argv[i])=='-')
            {
                const char *p=argv[i]+1;
 
                while ((*p)!='\0')
                {
                    char c=*(p++);;
                    if ((c=='o') || (c=='O'))
                        opt_overwrite = 1;
                    if ((c=='a') || (c=='A'))
                        opt_overwrite = 2;
                    if ((c>='0') && (c<='9'))
                        opt_compress_level = c-'0';
                    if ((c=='j') || (c=='J'))
                        opt_exclude_path = 1;
 
                    if (((c=='p') || (c=='P')) && (i+1<argc))
                    {
                        password=argv[i+1];
                        i++;
                    }
                }
            }
            else
            {
                if (zipfilenamearg == 0)
                {
                    zipfilenamearg = i ;
                }
            }
        }
    }
 
    size_buf = WRITEBUFFERSIZE;
    buf = (void*)malloc(size_buf);
    if (buf==NULL)
    {
        printf("Error allocating memory\n");
        return ZIP_INTERNALERROR;
    }
 
    if (zipfilenamearg==0)
    {
        zipok=0;
    }
    else
    {
        int i,len;
        int dot_found=0;
 
        zipok = 1 ;
        strncpy(filename_try, argv[zipfilenamearg],MAXFILENAME-1);
        /* strncpy doesnt append the trailing NULL, of the string is too long. */
        filename_try[ MAXFILENAME ] = '\0';
 
        len=(int)strlen(filename_try);
        for (i=0;i<len;i++)
            if (filename_try[i]=='.')
                dot_found=1;
 
        if (dot_found==0)
            strcat(filename_try,".zip");
 
        if (opt_overwrite==2)
        {
            /* if the file don't exist, we not append file */
            if (check_exist_file(filename_try)==0)
                opt_overwrite=1;
        }
        else
        if (opt_overwrite==0)
            if (check_exist_file(filename_try)!=0)
            {
                char rep=0;
                do
                {
                    char answer[128];
                    int ret;
                    printf("The file %s exists. Overwrite ? [y]es, [n]o, [a]ppend : ",filename_try);
                    ret = scanf("%1s",answer);
                    if (ret != 1)
                    {
                       exit(EXIT_FAILURE);
                    }
                    rep = answer[0] ;
                    if ((rep>='a') && (rep<='z'))
                        rep -= 0x20;
                }
                while ((rep!='Y') && (rep!='N') && (rep!='A'));
                if (rep=='N')
                    zipok = 0;
                if (rep=='A')
                    opt_overwrite = 2;
            }
    }
 
    if (zipok==1)
    {
        zipFile zf;
        int errclose;
#        ifdef USEWIN32IOAPI
        zlib_filefunc64_def ffunc;
        fill_win32_filefunc64A(&ffunc);
        zf = zipOpen2_64(filename_try,(opt_overwrite==2) ? 2 : 0,NULL,&ffunc);
#        else
        zf = zipOpen64(filename_try,(opt_overwrite==2) ? 2 : 0);
#        endif
 
        if (zf == NULL)
        {
            printf("error opening %s\n",filename_try);
            err= ZIP_ERRNO;
        }
        else
            printf("creating %s\n",filename_try);
 
        for (i=zipfilenamearg+1;(i<argc) && (err==ZIP_OK);i++)
        {
            if (!((((*(argv[i]))=='-') || ((*(argv[i]))=='/')) &&
                  ((argv[i][1]=='o') || (argv[i][1]=='O') ||
                   (argv[i][1]=='a') || (argv[i][1]=='A') ||
                   (argv[i][1]=='p') || (argv[i][1]=='P') ||
                   ((argv[i][1]>='0') || (argv[i][1]<='9'))) &&
                  (strlen(argv[i]) == 2)))
            {
                FILE * fin;
                size_t size_read;
                const char* filenameinzip = argv[i];
                const char *savefilenameinzip;
                zip_fileinfo zi;
                unsigned long crcFile=0;
                int zip64 = 0;
 
                zi.tmz_date.tm_sec = zi.tmz_date.tm_min = zi.tmz_date.tm_hour =
                zi.tmz_date.tm_mday = zi.tmz_date.tm_mon = zi.tmz_date.tm_year = 0;
                zi.dosDate = 0;
                zi.internal_fa = 0;
                zi.external_fa = 0;
                filetime(filenameinzip,&zi.tmz_date,&zi.dosDate);
 
/*
                err = zipOpenNewFileInZip(zf,filenameinzip,&zi,
                                 NULL,0,NULL,0,NULL / * comment * /,
                                 (opt_compress_level != 0) ? Z_DEFLATED : 0,
                                 opt_compress_level);
*/
                if ((password != NULL) && (err==ZIP_OK))
                    err = getFileCrc(filenameinzip,buf,size_buf,&crcFile);
 
                zip64 = isLargeFile(filenameinzip);
 
                                                         /* The path name saved, should not include a leading slash. */
               /*if it did, windows/xp and dynazip couldn't read the zip file. */
                 savefilenameinzip = filenameinzip;
                 while( savefilenameinzip[0] == '\\' || savefilenameinzip[0] == '/' )
                 {
                     savefilenameinzip++;
                 }
 
                 /*should the zip file contain any path at all?*/
                 if( opt_exclude_path )
                 {
                     const char *tmpptr;
                     const char *lastslash = 0;
                     for( tmpptr = savefilenameinzip; *tmpptr; tmpptr++)
                     {
                         if( *tmpptr == '\\' || *tmpptr == '/')
                         {
                             lastslash = tmpptr;
                         }
                     }
                     if( lastslash != NULL )
                     {
                         savefilenameinzip = lastslash+1; // base filename follows last slash.
                     }
                 }
 
                 
                err = zipOpenNewFileInZip3_64(zf,savefilenameinzip,&zi,
                                 NULL,0,NULL,0,NULL /* comment*/,
                                 (opt_compress_level != 0) ? Z_DEFLATED : 0,
                                 opt_compress_level,0,
                                 /* -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY, */
                                 -MAX_WBITS, DEF_MEM_LEVEL, Z_DEFAULT_STRATEGY,
                                 password,crcFile, zip64);
 
                if (err != ZIP_OK)
                    printf("error in opening %s in zipfile\n",filenameinzip);
                else
                {
                    fin = FOPEN_FUNC(filenameinzip,"rb");
                    if (fin==NULL)
                    {
                        err=ZIP_ERRNO;
                        printf("error in opening %s for reading\n",filenameinzip);
                    }
                }
 
                if (err == ZIP_OK)
                    do
                    {
                        err = ZIP_OK;
                        size_read = fread(buf,1,size_buf,fin);
                        if (size_read < size_buf)
                            if (feof(fin)==0)
                        {
                            printf("error in reading %s\n",filenameinzip);
                            err = ZIP_ERRNO;
                        }
 
                        if (size_read>0)
                        {
                            err = zipWriteInFileInZip (zf,buf,(unsigned)size_read);
                            if (err<0)
                            {
                                printf("error in writing %s in the zipfile\n",
                                                 filenameinzip);
                            }
 
                        }
                    } while ((err == ZIP_OK) && (size_read>0));
 
                if (fin)
                    fclose(fin);
 
                if (err<0)
                    err=ZIP_ERRNO;
                else
                {
                    err = zipCloseFileInZip(zf);
                    if (err!=ZIP_OK)
                        printf("error in closing %s in the zipfile\n",
                                    filenameinzip);
                }
            }
        }
        errclose = zipClose(zf,NULL);
        if (errclose != ZIP_OK)
            printf("error in closing %s\n",filename_try);
    }
    else
    {
       do_help();
    }
 
    free(buf);
    return 0;
}

References argv, c, check_exist_file(), DEF_MEM_LEVEL, do_banner(), do_help(), zip_fileinfo::dosDate, err, test-lz4-list::exit, zip_fileinfo::external_fa, benchmark::FILE, filetime(), fill_win32_filefunc64A(), FOPEN_FUNC, free(), getFileCrc(), i, int, zip_fileinfo::internal_fa, isLargeFile(), len, malloc(), MAX_WBITS, MAXFILENAME, NULL, p, printf(), tm_zip_s::tm_hour, tm_zip_s::tm_mday, tm_zip_s::tm_min, tm_zip_s::tm_mon, tm_zip_s::tm_sec, tm_zip_s::tm_year, zip_fileinfo::tmz_date, WRITEBUFFERSIZE, Z_DEFAULT_COMPRESSION, Z_DEFAULT_STRATEGY, Z_DEFLATED, ZIP_ERRNO, ZIP_INTERNALERROR, ZIP_OK, zipClose(), zipCloseFileInZip(), zipOpen2_64(), zipOpen64(), zipOpenNewFileInZip3_64(), and zipWriteInFileInZip().