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POStack overflow creating an archive using libzip
 

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  1. POStack overflow creating an archive using libzip
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    <p>To get started with <a href="http://www.nih.at/libzip/index.html" rel="nofollow">libzip</a>, I tried to create an archive and add a file to it. This is my code.</p> <pre><code>string archive = "path/to/archive.zip"; string file = "message"; char *data = "Hello World!"; int error = 0; zip *archive = zip_open(path.c_str(), ZIP_CREATE, &amp;error); if(error) { cout &lt;&lt; "could not open or create archive" &lt;&lt; endl; return false; } zip_source *source = zip_source_buffer(archive, data, sizeof(data), 0); if(source == NULL) { cout &lt;&lt; "failed to create source buffer. " &lt;&lt; zip_strerror(archive) &lt;&lt; endl; return false; } int index = (int)zip_file_add(archive, file.c_str(), source, ZIP_FL_OVERWRITE); if(index &lt; 0) { cout &lt;&lt; "failed to add file to archive. " &lt;&lt; zip_strerror(archive) &lt;&lt; endl; return false; } zip_source_free(source); zip_close(archive); return true; </code></pre> <p>This code throws a runtime error at the <code>zip_close()</code> call.</p> <blockquote> <p>Unhandled exception at 0x00EDDD16 in Application.exe: 0xC00000FD: Stack overflow (parameters: 0x00000001, 0x002C2FFC).</p> </blockquote> <p>Update: I removed the <code>zip_source_free()</code> call since I was told that this is already done by <code>zip_file_add()</code>. Moreover, I check <code>archive</code> to not hold <code>NULL</code>. These changes raised another error at <code>zip_close()</code>.</p> <blockquote> <p>Unhandled exception at 0x0065BC57 in Application.exe: An invalid parameter was passed to a function that considers invalid parameters fatal.</p> </blockquote> <p>What am I doing wrong?</p>
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    1. USdanijar
    1. USdanijar
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    1. COThe declaration of `data` won't even compile in C++11, as modifying string literals is pointless.
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      1. POStack overflow creating an archive using libzip
      1. USchris
    2. CO@chris `data` is just for testing. I took it from the [documentation](http://www.nih.at/libzip/zip_file_add.html#x4558414d504c4553). It compiles without warnings in Visual Studio 11.
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      1. POStack overflow creating an archive using libzip
      1. USdanijar
    3. COThere is also an extra closing parenthesis in `zip_open` before `.c_str()`.
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      1. POStack overflow creating an archive using libzip
      1. USSamuel Tardieu
 

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