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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6725 | siemargl | 1 | /* |
| 2 | Copyright (c) 1990-2009 Info-ZIP. All rights reserved. |
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| 3 | |||
| 4 | See the accompanying file LICENSE, version 2009-Jan-02 or later |
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| 5 | (the contents of which are also included in unzip.h) for terms of use. |
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| 6 | If, for some reason, all these files are missing, the Info-ZIP license |
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| 7 | also may be found at: ftp://ftp.info-zip.org/pub/infozip/license.html |
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| 8 | */ |
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| 9 | /*--------------------------------------------------------------------------- |
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| 10 | |||
| 11 | unzipstb.c |
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| 12 | |||
| 13 | Simple stub function for UnZip DLL (or shared library, whatever); does |
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| 14 | exactly the same thing as normal UnZip, except for additional printf()s |
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| 15 | of various version numbers, solely as a demonstration of what can/should |
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| 16 | be checked when using the DLL. (If major version numbers ever differ, |
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| 17 | assume program is incompatible with DLL--especially if DLL version is |
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| 18 | older. This is not likely to be a problem with *this* simple program, |
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| 19 | but most user programs will be much more complex.) |
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| 20 | |||
| 21 | ---------------------------------------------------------------------------*/ |
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| 22 | |||
| 23 | #include |
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| 24 | #include "unzip.h" |
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| 25 | #if defined(MODERN) && !defined(NO_STDDEF_H) |
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| 26 | # include |
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| 27 | #endif |
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| 28 | #include "unzvers.h" |
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| 29 | |||
| 30 | int main(int argc, char *argv[]) |
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| 31 | { |
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| 32 | static ZCONST UzpVer *pVersion; /* no pervert jokes, please... */ |
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| 33 | |||
| 34 | pVersion = UzpVersion(); |
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| 35 | |||
| 36 | printf("UnZip stub: checking version numbers (DLL is dated %s)\n", |
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| 37 | pVersion->date); |
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| 38 | printf(" UnZip versions: expecting %u.%u%u, using %u.%u%u%s\n", |
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| 39 | UZ_MAJORVER, UZ_MINORVER, UZ_PATCHLEVEL, pVersion->unzip.major, |
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| 40 | pVersion->unzip.minor, pVersion->unzip.patchlevel, pVersion->betalevel); |
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| 41 | printf(" ZipInfo versions: expecting %u.%u%u, using %u.%u%u\n", |
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| 42 | ZI_MAJORVER, ZI_MINORVER, UZ_PATCHLEVEL, pVersion->zipinfo.major, |
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| 43 | pVersion->zipinfo.minor, pVersion->zipinfo.patchlevel); |
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| 44 | |||
| 45 | /* |
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| 46 | D2_M*VER and os2dll.* are obsolete, though retained for compatibility: |
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| 47 | |||
| 48 | printf(" OS2 DLL versions: expecting %u.%u%u, using %u.%u%u\n", |
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| 49 | D2_MAJORVER, D2_MINORVER, D2_PATCHLEVEL, pVersion->os2dll.major, |
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| 50 | pVersion->os2dll.minor, pVersion->os2dll.patchlevel); |
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| 51 | */ |
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| 52 | |||
| 53 | if (pVersion->flag & 2) |
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| 54 | printf(" using zlib version %s\n", pVersion->zlib_version); |
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| 55 | |||
| 56 | /* This example code only uses the dll calls UzpVersion() and |
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| 57 | * UzpMain(). The APIs for these two calls have maintained backward |
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| 58 | * compatibility since at least the UnZip release 5.3 ! |
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| 59 | */ |
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| 60 | # define UZDLL_MINVERS_MAJOR 5 |
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| 61 | # define UZDLL_MINVERS_MINOR 3 |
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| 62 | # define UZDLL_MINVERS_PATCHLEVEL 0 |
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| 63 | /* This UnZip DLL stub requires a DLL version of at least: */ |
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| 64 | if ( (pVersion->unzip.major < UZDLL_MINVERS_MAJOR) || |
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| 65 | ((pVersion->unzip.major == UZDLL_MINVERS_MAJOR) && |
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| 66 | ((pVersion->unzip.minor < UZDLL_MINVERS_MINOR) || |
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| 67 | ((pVersion->unzip.minor == UZDLL_MINVERS_MINOR) && |
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| 68 | (pVersion->unzip.patchlevel < UZDLL_MINVERS_PATCHLEVEL) |
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| 69 | ) |
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| 70 | ) |
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| 71 | ) ) |
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| 72 | { |
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| 73 | printf(" aborting because of too old UnZip DLL version!\n"); |
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| 74 | return -1; |
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| 75 | } |
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| 76 | |||
| 77 | /* In case the offsetof() macro is not supported by some C compiler |
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| 78 | environment, it might be replaced by something like: |
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| 79 | ((extent)(void *)&(((UzpVer *)0)->dllapimin)) |
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| 80 | */ |
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| 81 | if (pVersion->structlen >= |
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| 82 | #if defined(MODERN) && !defined(NO_STDDEF_H) |
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| 83 | ( offsetof(UzpVer, dllapimin) |
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| 84 | #else |
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| 85 | ((unsigned)&(((UzpVer *)0)->dllapimin)) |
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| 86 | #endif |
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| 87 | + sizeof(_version_type) )) |
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| 88 | { |
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| 89 | #ifdef OS2DLL |
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| 90 | # define UZ_API_COMP_MAJOR UZ_OS2API_COMP_MAJOR |
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| 91 | # define UZ_API_COMP_MINOR UZ_OS2API_COMP_MINOR |
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| 92 | # define UZ_API_COMP_REVIS UZ_OS2API_COMP_REVIS |
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| 93 | #else /* !OS2DLL */ |
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| 94 | #ifdef WINDLL |
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| 95 | # define UZ_API_COMP_MAJOR UZ_WINAPI_COMP_MAJOR |
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| 96 | # define UZ_API_COMP_MINOR UZ_WINAPI_COMP_MINOR |
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| 97 | # define UZ_API_COMP_REVIS UZ_WINAPI_COMP_REVIS |
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| 98 | #else /* !WINDLL */ |
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| 99 | # define UZ_API_COMP_MAJOR UZ_GENAPI_COMP_MAJOR |
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| 100 | # define UZ_API_COMP_MINOR UZ_GENAPI_COMP_MINOR |
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| 101 | # define UZ_API_COMP_REVIS UZ_GENAPI_COMP_REVIS |
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| 102 | #endif /* ?WINDLL */ |
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| 103 | #endif /* ?OS2DLL */ |
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| 104 | printf( |
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| 105 | " UnZip API version: can handle <= %u.%u%u, DLL supplies %u.%u%u\n", |
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| 106 | UZ_API_COMP_MAJOR, UZ_API_COMP_MINOR, UZ_API_COMP_REVIS, |
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| 107 | pVersion->dllapimin.major, pVersion->dllapimin.minor, |
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| 108 | pVersion->dllapimin.patchlevel); |
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| 109 | if ( (pVersion->dllapimin.major > UZ_API_COMP_MAJOR) || |
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| 110 | ((pVersion->dllapimin.major == UZ_API_COMP_MAJOR) && |
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| 111 | ((pVersion->dllapimin.minor > UZ_API_COMP_MINOR) || |
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| 112 | ((pVersion->dllapimin.minor == UZ_API_COMP_MINOR) && |
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| 113 | (pVersion->dllapimin.patchlevel > UZ_API_COMP_REVIS) |
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| 114 | ) |
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| 115 | ) |
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| 116 | ) ) |
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| 117 | { |
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| 118 | printf(" aborting because of unsupported dll api version!\n"); |
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| 119 | return -1; |
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| 120 | } |
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| 121 | } |
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| 122 | printf("\n"); |
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| 123 | |||
| 124 | /* call the actual UnZip routine (string-arguments version) */ |
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| 125 | return UzpMain(argc, argv); |
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| 126 | } |