0,0 → 1,126 |
/* |
Copyright (c) 1990-2009 Info-ZIP. All rights reserved. |
|
See the accompanying file LICENSE, version 2009-Jan-02 or later |
(the contents of which are also included in unzip.h) for terms of use. |
If, for some reason, all these files are missing, the Info-ZIP license |
also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html |
*/ |
/*--------------------------------------------------------------------------- |
|
unzipstb.c |
|
Simple stub function for UnZip DLL (or shared library, whatever); does |
exactly the same thing as normal UnZip, except for additional printf()s |
of various version numbers, solely as a demonstration of what can/should |
be checked when using the DLL. (If major version numbers ever differ, |
assume program is incompatible with DLL--especially if DLL version is |
older. This is not likely to be a problem with *this* simple program, |
but most user programs will be much more complex.) |
|
---------------------------------------------------------------------------*/ |
|
#include <stdio.h> |
#include "unzip.h" |
#if defined(MODERN) && !defined(NO_STDDEF_H) |
# include <stddef.h> |
#endif |
#include "unzvers.h" |
|
int main(int argc, char *argv[]) |
{ |
static ZCONST UzpVer *pVersion; /* no pervert jokes, please... */ |
|
pVersion = UzpVersion(); |
|
printf("UnZip stub: checking version numbers (DLL is dated %s)\n", |
pVersion->date); |
printf(" UnZip versions: expecting %u.%u%u, using %u.%u%u%s\n", |
UZ_MAJORVER, UZ_MINORVER, UZ_PATCHLEVEL, pVersion->unzip.major, |
pVersion->unzip.minor, pVersion->unzip.patchlevel, pVersion->betalevel); |
printf(" ZipInfo versions: expecting %u.%u%u, using %u.%u%u\n", |
ZI_MAJORVER, ZI_MINORVER, UZ_PATCHLEVEL, pVersion->zipinfo.major, |
pVersion->zipinfo.minor, pVersion->zipinfo.patchlevel); |
|
/* |
D2_M*VER and os2dll.* are obsolete, though retained for compatibility: |
|
printf(" OS2 DLL versions: expecting %u.%u%u, using %u.%u%u\n", |
D2_MAJORVER, D2_MINORVER, D2_PATCHLEVEL, pVersion->os2dll.major, |
pVersion->os2dll.minor, pVersion->os2dll.patchlevel); |
*/ |
|
if (pVersion->flag & 2) |
printf(" using zlib version %s\n", pVersion->zlib_version); |
|
/* This example code only uses the dll calls UzpVersion() and |
* UzpMain(). The APIs for these two calls have maintained backward |
* compatibility since at least the UnZip release 5.3 ! |
*/ |
# define UZDLL_MINVERS_MAJOR 5 |
# define UZDLL_MINVERS_MINOR 3 |
# define UZDLL_MINVERS_PATCHLEVEL 0 |
/* This UnZip DLL stub requires a DLL version of at least: */ |
if ( (pVersion->unzip.major < UZDLL_MINVERS_MAJOR) || |
((pVersion->unzip.major == UZDLL_MINVERS_MAJOR) && |
((pVersion->unzip.minor < UZDLL_MINVERS_MINOR) || |
((pVersion->unzip.minor == UZDLL_MINVERS_MINOR) && |
(pVersion->unzip.patchlevel < UZDLL_MINVERS_PATCHLEVEL) |
) |
) |
) ) |
{ |
printf(" aborting because of too old UnZip DLL version!\n"); |
return -1; |
} |
|
/* In case the offsetof() macro is not supported by some C compiler |
environment, it might be replaced by something like: |
((extent)(void *)&(((UzpVer *)0)->dllapimin)) |
*/ |
if (pVersion->structlen >= |
#if defined(MODERN) && !defined(NO_STDDEF_H) |
( offsetof(UzpVer, dllapimin) |
#else |
((unsigned)&(((UzpVer *)0)->dllapimin)) |
#endif |
+ sizeof(_version_type) )) |
{ |
#ifdef OS2DLL |
# define UZ_API_COMP_MAJOR UZ_OS2API_COMP_MAJOR |
# define UZ_API_COMP_MINOR UZ_OS2API_COMP_MINOR |
# define UZ_API_COMP_REVIS UZ_OS2API_COMP_REVIS |
#else /* !OS2DLL */ |
#ifdef WINDLL |
# define UZ_API_COMP_MAJOR UZ_WINAPI_COMP_MAJOR |
# define UZ_API_COMP_MINOR UZ_WINAPI_COMP_MINOR |
# define UZ_API_COMP_REVIS UZ_WINAPI_COMP_REVIS |
#else /* !WINDLL */ |
# define UZ_API_COMP_MAJOR UZ_GENAPI_COMP_MAJOR |
# define UZ_API_COMP_MINOR UZ_GENAPI_COMP_MINOR |
# define UZ_API_COMP_REVIS UZ_GENAPI_COMP_REVIS |
#endif /* ?WINDLL */ |
#endif /* ?OS2DLL */ |
printf( |
" UnZip API version: can handle <= %u.%u%u, DLL supplies %u.%u%u\n", |
UZ_API_COMP_MAJOR, UZ_API_COMP_MINOR, UZ_API_COMP_REVIS, |
pVersion->dllapimin.major, pVersion->dllapimin.minor, |
pVersion->dllapimin.patchlevel); |
if ( (pVersion->dllapimin.major > UZ_API_COMP_MAJOR) || |
((pVersion->dllapimin.major == UZ_API_COMP_MAJOR) && |
((pVersion->dllapimin.minor > UZ_API_COMP_MINOR) || |
((pVersion->dllapimin.minor == UZ_API_COMP_MINOR) && |
(pVersion->dllapimin.patchlevel > UZ_API_COMP_REVIS) |
) |
) |
) ) |
{ |
printf(" aborting because of unsupported dll api version!\n"); |
return -1; |
} |
} |
printf("\n"); |
|
/* call the actual UnZip routine (string-arguments version) */ |
return UzpMain(argc, argv); |
} |