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author | Matthias Schiffer <mschiffer@universe-factory.net> | 2015-02-02 18:33:21 +0100 |
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committer | Matthias Schiffer <mschiffer@universe-factory.net> | 2015-02-02 18:33:21 +0100 |
commit | 34857eabbcaea2344fe7912f96fbd7f854c37e1b (patch) | |
tree | 9603f90b3cba412b2d0de321b7cbc8e6c4012fd4 /src/GZip.cpp | |
parent | db59b7385621a271684c3be5f20618d74e631dda (diff) | |
download | MinedMap-34857eabbcaea2344fe7912f96fbd7f854c37e1b.tar MinedMap-34857eabbcaea2344fe7912f96fbd7f854c37e1b.zip |
Add spawn coordinates
Diffstat (limited to 'src/GZip.cpp')
-rw-r--r-- | src/GZip.cpp | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/src/GZip.cpp b/src/GZip.cpp new file mode 100644 index 0000000..626ef81 --- /dev/null +++ b/src/GZip.cpp @@ -0,0 +1,65 @@ +/* + Copyright (c) 2015, Matthias Schiffer <mschiffer@universe-factory.net> + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + 1. Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + + +#include "GZip.hpp" + +#include <system_error> +#include <stdexcept> +#include <zlib.h> + + +namespace MinedMap { + +std::vector<uint8_t> readGZip(const char *filename) { + std::vector<uint8_t> buffer; + size_t len = 0; + + gzFile f = gzopen(filename, "rb"); + if (!f) + throw std::system_error(errno, std::generic_category(), "unable to open GZip file"); + + while (true) { + if ((buffer.size() - len) < 4096) + buffer.resize(buffer.size() + 4096); + + int r = gzread(f, buffer.data()+len, buffer.size()-len); + if (r < 0) + throw std::system_error(errno, std::generic_category(), "error reading GZip file"); + + if (!r) + break; + + len += r; + } + + gzclose_r(f); + + buffer.resize(len); + + return std::move(buffer); +} + +} |